Central Control Unit User Manual Pr2 - UTS + ECS

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CCU-03 User Manual R2 UTS+ECS Page 1 www.coolsure.com 3/9/2011

Uninterruptible Telecom Split Airconditioner And

Direct Air Cooling Fan/Filter Unit CCU-03 Central Control Unit

User Manual

© Copyright Coolsure Limited

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1 Contents 1 Contents ............................................................................................................................. 2 2 Introduction......................................................................................................................... 3 3 Layout and Hardware Installation....................................................................................... 4

3.1 Display .......................................................................................................................... 4 3.2 Keypad.......................................................................................................................... 4 3.3 Alarm LED .................................................................................................................... 5 3.4 Communication LED..................................................................................................... 5 3.5 Service Port .................................................................................................................. 5 3.6 Alarm Outputs............................................................................................................... 5 3.7 External Input Channel ................................................................................................. 5 3.8 USB Port....................................................................................................................... 5 3.9 CoolBus Port................................................................................................................. 5 3.10 Installing the System Hardware ............................................................................... 5

4 Application Menu................................................................................................................ 7 4.1 Menu Overview............................................................................................................. 7 4.2 Updating Parameters.................................................................................................... 7 4.3 Entering Password / Default Password ........................................................................ 7 4.4 Default Menu ................................................................................................................ 8 4.5 Settings Menu............................................................................................................. 10 4.6 Monitor Units Menu .................................................................................................... 16 4.7 Monitor Alarms Menu ................................................................................................. 19 4.8 Configure Menu .......................................................................................................... 22 4.9 Statistic Menu ............................................................................................................. 25 4.10 Alarm Log Menu..................................................................................................... 27

5 Software Update............................................................................................................... 28 5.1 Installing the Programming Hardware ........................................................................ 28 5.2 Launching the Coolsure Programmer Application...................................................... 28 5.3 Importing the Software Update File ............................................................................ 29 5.4 Update the Central Control Unit software................................................................... 29

6 Troubleshooting................................................................................................................ 30 Appendix A. Indoor Unit Alarm ................................................................................................ 31 Appendix B. Parameter Information ........................................................................................ 32 Appendix C. Application Menu Overview ................................................................................ 34

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2 Introduction The Central Control Unit (CCU-03) is used for adjustment of system parameters and setpoints and the provision of advanced monitoring and control features in a Coolsure Uninterruptible Telecom Split (UTS) Airconditioning System and a Coolsure Direct Air Cooling Fan/Filter Unit. Individual cooling units communicate directly with each other via the CoolBus communication bus, allowing the Coolsure UTS system to be fully functional without requiring the CCU-03 to be connected. The CCU-03 can thus be used either as a service tool for the Coolsure UTS system to adjust setpoints and view detailed system parameters for fault finding, or can be permanently installed at the site to provide remote alarm capability and enhanced system features. This User Manual describes the features and operation of the CCU-03 Central Control Unit.

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3 Layout and Hardware Installation The main components of the Central Control Unit are shown in Figure 2-1 below Figure 2-1: Central Control Unit Layout

3.1 Display The Display shows the text details of the application menu. The Control Unit returns to the Default menu and dims the backlight if no key is pressed for 30 minutes.

3.2 Keypad Central Control Unit provides a user friendly interface. There are escape, up, down, left, right and enter keys.

• Escape Escape key is used to return to the previous level in the menu or to cancel editing a parameter.

• Left and Right Left and Right keys are used to scroll through the menu columns.

• Up and Down Up and Down keys are used to scroll through the menu rows or to increase or decrease a parameter value while the value is flashing.

Alarm LED Display

Keypad

Service Port

Alarm Outputs External Inputs CoolBus Port

USB Port

Communication LED

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• Enter Enter key is used to jump to the lower level in the menu and to confirm the parameter setting.

3.3 Alarm LED There are 3 alarm levels which can be shown on the LED.

Green LED lights up to indicate the system is working properly and no alarms are active.

Yellow LED lights up to indicate there is/are observation alarm(s) active

Red LED lights up to indicate there is/are warning alarm(s) active

Red LED flashes to indicate there is/are critical alarm(s) active. The alarm LED displays the highest alarm level that is currently active in the system, with the observation alarm being the lowest alarm level and the critical alarm being the highest alarm level. Each alarm can be set to any one of the alarm levels, or disabled (see Settings Menu)

3.4 Communication LED The communication LED indicates activity on the CoolBus between the airconditioning units, fan/filter unit and the Central Control Unit (CCU-03). Ordinarily the LED should flash a few times per second, everytime the Central Control Unit receives communication from one of the airconditioning units or fan/filter unit – failure of the LED to flash is an indication of a problem with the CoolBus connection, or a fault in one/all of the units connected to the CoolBus.

3.5 Service Port (Feature is currently not implemented) Provides a serial port connection to a modem or serial/ethernet adapter for remote monitoring/control.

3.6 Alarm Outputs There are 3 changeover relay alarm outputs corresponding to the different alarm levels. They are A1 (Warning Alarm), A2 (Critical Alarm) and O1 (Observation Alarm).

3.7 External Input Channel (Feature is currently not implemented) There are 4 external analog input channels which can be configured to measure 0-5V, 0-20mA, NTC thermistor or digital input with pull-up resistor

3.8 USB Port The USB Port is used to download software revisions to the Central Control Unit, see Section 5 for more information.

3.9 CoolBus Port There are 2 CoolBus ports for connecting the Central Control Unit to the system. All units are connected in parallel on the CoolBus, allowing connection to be made to any convenient CoolBus port. The Control Unit is powered redundantly by the airconditioning units and/or fan/filter unit via the CoolBus.

3.10 Installing the System Hardware To install the Central Control Unit:

• Connect the Central Control Unit to one of the airconditioning unit or fan/filter unit RJ45 sockets via the provided CoolBus cables

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• If either a airconditioning unit or a fan/filter unit is turned on, the Central Control Unit should be powered and able monitor the system

• The green “Communication LED” should flash to indicate communication on the CoolBus – failure of the LED to flash indicates a problem with the CoolBus connection, or one/more faulty units connected to the CoolBus.

Adding a new airconditioning unit to the system:

• New airconditioning units can be connected to the CoolBus while the system is running

• New units are automatically detected and integrated into the system by the existing airconditioning units and Central Control Unit.

• Units are allocated Unit Numbers (used for viewing detailed unit parameters, see Monitor Units) based on their serial numbers

• If any of the setpoints of the newly connected unit are different from the existing unit, these need to be adjusted via the Central Control Unit (see Setting Menu)

Removing a unit from the system:

• Typically the loss of a unit from the CoolBus is indicative of a fault in the unit. The other airconditioning units automatically adjust to the loss of a unit from the CoolBus, providing redundant operation.

• In order to provide failsafe system monitoring, the Central Control Unit generates a “Unit Lost” alarm if a unit from the system for a certain length of time (Section 4.5.2). This ensures that an alarm is generated in the case that a unit has failed in such a way that it is unable to send a fault alarm to the Central Control Unit. In the case of intentionally removing a unit from the system, this alarm can be reset by re-initializing the number of units in the Central Control Unit (Section 4.8.5).

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4 Application Menu

4.1 Menu Overview The application menu overview is shown in Appendix C. The up/down/left/right keys are used to navigate the menu structure, with enter and escape keys used to navigate into and out of the sub menu structure.

4.2 Updating Parameters Some parameters can be changed so as to fulfill different requirements. Password protection is provided to prevent unauthorised modification of system settings. The Central Control Unit prompts for the password (if it has not been entered yet) before allowing any change on the system – password will need to be re-entered following 1 hour of inactivity (no keys pressed).

4.3 Entering Password / Default Password The factory default Password is “0000”. If the password has not been modified from this factory default setting, one only need press the enter key when prompted to enter the password. Note: Care must be taken when changing the password as loss of the password will prevent future access to the system. New software will need to be downloaded to the Central Control Unit to reset the password Figure 3.2-1 Enter Password before update the parameters P a s s w o r d : 0 * * *

The left/right keys are used to select the digit to be edited and the up/down keys used to increase/decrease the value of the digit. The enter key is used to accept the current value. Escape key goes back to the previous menu. If the password is incorrect, a wrong password text will be shown as in figure 3.2-2. Pressing any key returns to previous screen. Figure 3.2-2 Text after Wrong Password has been entered P a s s w o r d : 0 * * * W r o n g P a s s w o r d

If the password is correct, it enters to update mode and the target parameter should be flashing. There is an example shown in figure 3.2-3. Figure 3.2-3 updating the normal setpoint parameter

The parameter is set after “ENTER” has been pressed. Some menus require the changing of a few parameters. These have to be changed one by one in sequence from left to right and then from up to down. These parameters have to be updated together; in other words, if the update is cancelled at or before the last parameter, none of the parameters will be changed.

℃5.72

tniopt e S a mr o N l

The parameter is flashing

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4.4 Default Menu This is the menu at the startup. It can be entered by pressing “ESC” repeatedly from any level menu. The Control Unit will also return to Default menu if it is idle for more than 30 minutes. The menu description is shown in figure 3.2-1. Figure 3.2-1 Default Menu Description

Legend: 1: Average Return Temperature (measured by the airconditioning units) or T-1C/TRH-2C Temperature measurement (if T-1C/TRH-2C Temperature/Relative Humidity Transmitter is connected) 2: T-1C/TRH-2C Relative Humidity (This item is blank if T-1C/TRH-2C is not connected) 3: This value is actual fan speed of the fan/filter unit in percentage if fan/filter unit is running only; otherwise, it is average actual compressor speed of the airconditioning units in hertz. 4: Operating Unit:

There are 4 situations: OFF (Neither fan/filter unit or airconditioning unit is running), ECS (fan/filter unit is running only), UTS (airconditioning unit(s) is/are running only) and ALL (Both fan/filter unit and airconditioning unit(s) are running).

5: Operating Mode: There are 5 types of operating mode: Normal mode (lowest priority to be shown), Setback mode, Backup mode, Autozero mode and Shutdown mode (highest priority to be shown). The system allows for different temperature setpoint for each of the first three operating modes. The system is ordinarily in Normal mode (controlling the temperature to the normal setpoint) when operating from AC mains power. The system changes to Backup mode (controlling the temperature to the backup setpoint) if the AC mains power fails and the system is operating from the battery backup. The system changes from Normal mode to Setback mode (controlling the temperature to the setback temperature) if a setback period has been configured in the system and the system clock determines that the current time falls within the setback period. Setback is disabled during Backup mode. The system may stop the ECS fan for each of the following two operating modes. The ECS changes to autozero mode to update the offset for pressure reading which requires the fan to be shutdown. The ECS changes to shutdown mode when the shutdown button is pressed in order to service or replace the filter.

6: Alarm Level: There are 3 alarm levels: observation alarm (O1), warning alarm (A1) and critical alarm (A2). Only the highest alarm level will be indicated. An ENTER symbol is displayed to the right of the alarm level as showed in figure 3.2-2, Figure 3.2-2 Alarm level with ENTER symbol

This indicates the Active Alarm List can be displayed by pressing the “ENTER” key.

4.4.1 Active Alarm List This list shows all active alarms. It allows scrolling “UP” or “DOWN” the list and 2 alarms can be shown at a time. Only the alarms set to have alarm level in “Alarm Setting” Menu can be activated and show on the list. The figure 3.2.1-1 is an example.

KO l a mr oN : L L A zH52HR %0 4 ℃ 5 . 7 2

1 2 3

65 4

1 A

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Figure 3.2.1-1 Example of Activated Alarm List H i g h T e m p A l a r m H i g h S p e e d A l a r mU n i t F a u l t > 1 A C F a u l t U n i t L o s t

In this example, the second and the third of 5 active alarms is shown on the screen.

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4.5 Settings Menu This menu is used to change the system setting. All parameters in this menu can be updated.

4.5.1 Setpoint Menu The various system setpoints are stored in each individual airconditioning unit and fan/filter unit, and the Central Control Unit displays the average value stored in the units. The setpoints in each airconditioning unit and fan/filter unit should ordinarily be identical for correct system operation, but adding a new airconditioning unit to the system can result in units with different setpoints. The system setpoints can be edited via the Central Control Unit and are updated in each individual airconditioning unit and fan/filter unit upon acceptance (by pressing the enter key) of the edited value. After editing, the Central Control Unit reads back and displays the average value stored in the units, allowing one to check that the value has been correctly updated. An example screen is shown in Figure 3.4.1-1. For more information about the setting range and factory default setting, see Appendix B. “Parameter Information”. Figure 3.4.1-1 Normal Setpoint in Setpoint Menu N o r m a l S e t p o i n t 2 8 . 5 ℃

• Normal Setpoint This is the temperature setpoint in Normal mode (when the unit is not in Setback mode or Backup mode). The system would maintain the room temperature according to this setpoint in Normal Mode. The Normal setpoint is usually chosen to provide an optimum tradeoff between airconditioner power consumption and telecom equipment and battery life.

• Setback Setpoint This is the temperature setpoint during the setback period. The system maintains the room temperature according to this setpoint in Setback Mode. Setback mode is ordinarily used to provide a higher system temperature (with corresponding reduced airconditioner power consumption) during periods of higher energy cost, with the Normal and Setback temperatures chosen such that the average system temperature will be maintained at the desired level. This feature can also be used for other cases whereby different setpoints are desired for different periods of the day – for example a higher setpoint could be chosen for night-time to minimise noise and disturbance to nearby residents. This feature requires the Central Control Unit to be connected to the system as the Setback period and realtime clock are contained in the Central Control Unit.

• Backup Setpoint This is the temperature setpoint when the unit is running on battery. The system maintains the room temperature according to this setpoint in Backup Mode. A higher than Normal setpoint can be used to minimise the airconditioner power consumption when running from battery, hence minimising the impact on the battery backup capacity.

• Track Delta The airconditioning units are capable of adjusting their setpoint with the outdoor ambient. Outdoor ambient to the telecom station might relatively varies indoor temperature .The lower temperature difference between indoor and outdoor can minimize the airconditioner power

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consumption – for example setpoint will be higher during the daytime since the ambient temperature will be raised, This is a delta value applied on the temperature setpoint which limited its linear variation with outdoor ambient. (i.e. With setpoint of 25C and track delta of 2C, setpoint varies between 23C and 27C with ambient temp. In details, if the ambient dropped below its average by 1C, the setpoint becomes 24C.) This feature can be disabled by setting the value to zero.

• Delta Temp The airconditioning units normally adjust their compressor speeds in order to maintain the room temperature equal to the setpoint. However, under light load conditions, the airconditioning unit may still provide too much cooling capacity at minimum compressor speed (20Hz). In this case the units switch into an on/off control mode in order to maintain the room temperature equal to the setpoint. This is a delta value on the temperature setpoint which provides hysteresis on switching on/off the compressor. (i.e. if return temperature < setpoint – delta, the compressor will be switched off; if the return temperature > setpoint + delta, the compressor will be switched on). Normally this value should be in the range of 0.5C to 2.0C. Too low a value leads to more accurate temperature control, but more frequently cycling of the compressors and increased energy consumption. Units automatically determine which compressor should be turned off/on in order to equalize run-time between the different units.

• UTS Fan@Comp Off This is the indoor fan speed (in percentage) when the compressor of the unit is turned off. A unit provides no cooling capacity when its compressor is turned off and operating its indoor fan causes avoidable power losses. However, in some cases, it may be desirable to have continued indoor airflow even when the compressor is turned off. For example, the return temperature is measured adjacent to the indoor unit heatexchanger, meaning some airflow is desirable to ensure the air temperature is sampled correctly. The fan speed can be adjusted linearly between 40% and 100% with a minimum fan speed of 40%. A setpoint between 0 and 40 results in an indoor fan speed of 0% when the compressor is turned off.

• UTS Capacity This feature can be utilised to limit the total system cooling capacity (and hence input power consumption). This can be useful in the case the system is connected to a limited capacity supply, such as a diesel generator or fuel cell, or limited capacity AC feed. The cooling capacity is originated in compressor operating speed. Hence, limiting the operating speed can control the input power consumption. Capacity Limit is a factor (in percentage) on the rated total operating speed (assumed one unit is redundant when more than one unit are connected). This factor can effectively control the maximum compressor speed. (i.e. With 3 units in the system(one redundant) and power limit of 120%, sum of the compressor speeds should be 1.2 x (70 + 70) = 154Hz. In other words, 51Hz each if they are all working.) The Capacity Limit can be adjusted between 50% and 200%.

• Humidity Setpt (Feature is currently not implemented) (This item is applicable only when the T-1C/TRH-2C is connected)

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This is the desired humidity level for the system. The airconditioning units are able to provide dehumidification of the air for cases where sites are located in humid environments. The airconditioning units are not able to provide humidification for cases where sites are located in dry environments – external humidifiers are needed if this functionality is required.

• Delta Humidity (Feature is currently not implemented) (This item is applicable only when the T-1C/TRH-2C is connected) The upper margin for the humidity setpoint above which dehumidify mode is activated.

• Service Interval This is the regular service interval (in weeks). A timer and “service due alarm” is provided to prompt service personnel to clean air filters, heatexchangers, etc.

• Service Overdue This is the maximum valid service valid interval (in weeks) after the “service due” alarm is activated, before the service overdue alarm is activated.

• I/O Delta AC ON This is a delta value, comparing with temperature difference between indoor and outdoor, to switch on/off the fan/filter unit when airconditioning unit is running. (i.e. if Indoor Temp – Outdoor Temp ≥ I/O Delta AC ON, fan/filter unit will be startup; if Indoor Temp – Outdoor Temp ≤ I/O Delta AC ON - 1˚C, fan/filter unit will be shut)

• I/O Delta AC OFF This is a delta value, comparing with temperature difference between indoor and outdoor, to switch on/off the fan/filter unit when airconditioning unit is shut. (i.e. if Indoor Temp – Outdoor Temp ≥ I/O Delta AC OFF, fan/filter unit will be startup)

• ECS Fan Min Spd This is the minimum ECS fan speed (in percentage) when ECS is running.

• ECS Fan Max Spd This is the maximum ECS fan speed (in percentage) when ECS is running.

• Max Humidity This is the maximum for outdoor absolute humidity (in g/kg) above which the fan/filter unit is shut. The fan will be reactivated once the absolute humidity less than or equal to (Max Humidity – 1g/kg).

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4.5.2 Alarm Settings Menu

This menu allows user to set activation and deactivation levels for the system alarms dependent on analogue parameters. Also, it allows setting of the alarm level (observation, warning, critical, none) associated with the alarm, which controls which LED and changeover alarm relay is activated together with the alarm. Some alarms will set an additional relay on the fan/filter unit to be activated together with the alarm.

The parameters are saved in the Central Control Unit. See Appendix A for more information about the relation between Indoor Unit Alarm and Central Control Unit Alarm. The following is the description of this menu,

Figure 3.4.2-1 Alarm Setting Menu Description

• High Temp Alarm This alarm indicates the room temperature is high, where room temperature is the average return temperature measured by the airconditioning units, or the T-1C/TRH-2C temperature if it is connected. The activation point should always be set higher than the deactivation point. This alarm shall set an additional relay on the fan/filter unit.

• VHigh Temp Alarm This alarm indicates the room temperature is very high, where room temperature is the average return temperature measured by the airconditioning units, or the T-1C/TRH-2C temperature if it is connected. The activation point should always be set higher than the deactivation point.

• Low Temp Alarm This alarm indicates the room temperature is low, where room temperature is the average return temperature measured by the airconditioning units, or the T-1C/TRH-2C temperature if it is connected. The activation point should always be set lower than the deactivation point.

• Vlow Temp Alarm This alarm indicates the room temperature is very low, where room temperature is the average return temperature measured by the airconditioning units, or the T-1C/TRH-2C temperature if it is connected. The activation point should always be set lower than the deactivation point. This alarm shall set an additional relay on the fan/filter unit.

• High Humidity Alarm (This item is applicable only when T-1C/TRH-2C is connected) This alarm indicates the humidity measured by the T-1C/TRH-2C is high. The activation point should always be set higher than the deactivation point. This alarm shall set an additional relay on the fan/filter unit.

1A35. 3 3 0 . 5 3 ralAp me h g i H T m

Alarm Name

Activate point Deactivate point External Relay Number

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• High Latent Load (This item is applicable only when T-1C/TRH-2C is connected) The Central Control Unit monitors what percentage of time dehumidification is required. A high percentage of time requiring dehumidification is indicative of a high latent heat load, which can indicate poor sealing of the BTS room. High latent load directly impacts on the airconditioner energy consumption, so it is desirable to minimise the latent heatload. The activation point should always be set higher than the deactivation point.

• UTS Comp Hi Spd This alarm indicates the average compressor speed is high. The activation point should always be set higher than the deactivation point.

• Missing Filter This alarm indicates the fan filter is missing (Filter pressure is too low when the fan is running). The activation point should always be set lower than the deactivation point. This alarm shall set an additional relay on the fan/filter unit.

• Replace Filter This alarm indicates the fan filter experiences over-pressure (Filter pressure is too high when the fan is running). The activation point should always be set higher than the deactivation point. This alarm shall set an additional relay on the fan/filter unit.

• Blocked Filter This alarm indicates the fan filter is in need of replacement (Filter pressure is too high when the fan is running). The activation point should always be set higher than the deactivation point. This alarm shall set an additional relay on the fan/filter unit.

• UTS Unit Alarm and UTS Unit Alarm >1 These alarms indicate some units have “unit fault” other than those shown seperately below. If one unit has a fault, the “Unit Fault” alarm is activated. If more than one unit has a fault, the “Unit Fault>1” alarm is activated.

• UTS Unit Fault and UTS Unit Fault >1 This alarm indicates some units have “unit shutdown” alarms (including remote shutdown, indoor fan fault, overtemp shutdown, unit comms fault and outdoor fault) If one unit has the fault, the “Unit Shutdown” alarm is activated. If more than one unit have the fault, the “Unit Shutdown>1” alarm is activated.

• BCU Fault and BCU Fault >1 This alarm indicates some units have a Battery Converter Unit (BCU) fault. If one unit has the fault, the “BCU Fault” alarm is activated. If more than one unit have the fault, the “BCU Fault>1” alarm is activated.

• AC Fault and AC Fault >1 This alarm indicates some units have AC fault. If one unit has the fault, the “AC Fault” alarm is activated. If more than one unit have the fault, the “AC Fault>1” alarm is activated.

• Service Due This alarm indicates the time (in weeks) since last service of some units exceeds the preset service interval. This alarm can be deactivated by resetting the service timer in “Service Done” item (Section 4.8.4).

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• Service Overdue This alarm indicates the time (in weeks) since last service of some units exceeds the preset service overdue limit. This alarm can be deactivated by resetting the service timer in “Service Done” item (Section 4.8.4).

• In Power Limit (Feature is currently not implemented)

• Superheat (Feature is currently not implemented)

• ECS Fan Fail This alarm indicates the ECS fan is not working properly since the fan is unable to follow the commanded speed over certain period. This alarm shall set an additional relay on the fan/filter unit.

• ECS Sensor Fault This alarm indicates the sensor(s) is/are (partially) malfunctioning. This alarm shall set an additional relay on the fan/filter unit.

• Unit Lost This alarm indicates some units (either one or more of the airconditioning units, fan/filter unit or T-1C/TRH-2C) have been disconnected from the system. This alarm activates if the controller cannot communicate with an airconditioning unit or fan/filter unit for more than 5 seconds or with the T-1C/TRH-2C for more than 30 seconds. This alarm deactivates once the lost airconditioning unit fan/filter unit or T-1C/TRH-2C communicates with Central Control Unit again, or by resetting the number of existing unit in the system in “Initialize Unit” item (Section 4.8.5).

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4.6 Monitor Units Menu This menu monitors parameters in the airconditioning and fan/filter units. The average values are displayed in “ALL” column as shown in figure 3.5-1 and the individual values are displayed in “Unit” column as shown in figure 3.5-2. Value might be invalid as shown in figure 3.5-3. An invalid value may be indicative of a faulty sensor. Press left and right arrows to scroll between unit data and the average data (all). Figure 3.5-1 “ALL” column with averaged Return Temp R e t u r n T e m p A L L : 2 9 . 6 ℃

Figure 3.5-2 “Unit 1” column with Return Temp of Unit 1 R e t u r n T e m p U n i t 1 : 2 9 . 9 ℃

Figure 3.5-3 Invalid value of Unit 2 Return Temp R e t u r n T e m p U n i t 2 : - - . - ℃

4.6.1 Monitor UTS Menu This menu monitors parameters in the airconditioning units. When reading data from a particular unit (eg Unit 1), the LEDs and display of that unit flash to aid identification of each unit.

• Compressor Speed This is the actual compressor speed in Hertz. This value is used to determine if there is “High Speed” Alarm.

• Indoor Fan Speed This is the target indoor fan speed in percentage.

• Outdoor Fan Speed This is the target fan speed in percentage.

• Dehumidify Rate (Feature is currently not implemented) (This item is applicable only when the T-1C/TRH-2C is connected) This is the dehumidify rate over time in percentage. If the humidity is higher than the setpoint plus the delta, the units start dehumidification and the dehumidify rate increase over time; or if the humidity drops lower than the setpoint, the units stop dehumidification and the rate decrease over time. T-1C/TRH-2C uses this value to determine if there is “High Latent Load” Alarm.

• EEV Setting This is the Electronic Expansion Valve setting in steps.

• Return Temp This is the return temperature in degree Celsius. If return sensor is faulty, the indoor unit activates “Temp Sensor” fault and invalid value is shown in this item.

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The compressor speed operation is mainly depends on the different between the average of this value among the units and the setpoint. This value is used to determine if there is “High Temp” Alarm, “VHigh Temp” Alarm, “Low Temp” Alarm or “VLow Temp” Alarm in the case that the T-1C/TRH-2C is not connected to the system.

• Ambient Temp This is the ambient temperature in degree Celsius measured by outdoor unit. If ambient sensor is faulty, the indoor unit activates “Temp Sensor” fault and invalid value is shown in this item.

• Evaporator Temp This is the condenser temperature in degree Celsius. If evaporator sensor is faulty, the indoor unit activates “Temp Sensor” fault and invalid value is shown in this item. Outdoor Unit uses this value to control the EEV setting and to determine if there is Exchanger Frost Protection (Evaporator T Low) which is a “Unit Fault” alarm.

• Condenser Temp This is the condenser temperature in degree Celsius. If condenser sensor is faulty, the indoor unit activates “Temp Sensor” fault and invalid value is shown in this item. Outdoor Unit uses this value to determine if there is Over Refrigeration Protection (Condenser T High) which is a “Unit Fault” alarm.

• Suction Temp This is the suction temperature in degree Celsius. If suction sensor is faulty, the indoor unit activates “Temp Sensor” fault and invalid value is shown in this item.

• Discharge Temp This is the discharge temperature in degree Celsius. If discharge sensor is faulty, the indoor unit activates “Temp Sensor” fault and invalid value is shown in this item. Outdoor Unit uses this value to determine if there is Discharge Protection (Discharge T High) which is a “Unit Fault” alarm.

• AC Supply Voltage This is the AC supply voltage to the airconditioning unit. This value is used to determine if there is “AC High” or “AC Low” condition which is combined as an “AC Fault” alarm.

• BCU Voltage This is the Battery Converter Unit (BCU) voltage to the airconditioning unit.

• Input Power (sum) (Feature is currently not implemented)

• Total Run Time This is the accumulated running time (in hours) since the unit was powered.

• Comp Run Time This is the accumulated compressor running time (in hours) since the unit was powered.

• Weighted Run Time This is the accumulated weighted running time (in hours) since the unit was powered Value Increments when the compressor is running at a rate proportional to the compressor speed. (1 hour at 50Hz = 1 weighted hour, 2 hours at 25Hz = 1 weighted hour, 1 hour at

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75Hz = 1.5 weighted hours. This provides an indication of how hard the unit has been working)

• Time till service This is the time in weeks since the last service. Indoor Unit uses this value to determine if there is “Service Due” or “Service Overdue”.

4.6.2 Monitor ECS Menu This menu monitors parameters in the fan/filter units.

• Indoor Temp This is the indoor temperature in degree Celsius measured by UTS airconditioning units. If this temperature is invalid, the ECS unit activates “ECS Sensor Fault” alarm.

• Outdoor Temp This is the outdoor temperature in degree Celsius. If this temperature is invalid, the ECS unit activates “ECS Sensor Fault” alarm.

• In Rel Humidity This is the indoor relative humidity in percentage measured by temperature transmitter. If the transmitter does not have this function, this value will be invalid.

• Out Rel Humidity This is the outdoor relative humidity in percentage. If this humidity is invalid, the ECS unit activates “ECS Sensor Fault” alarm.

• In Abs Humidity This is the indoor absolute humidity based on indoor temperature and indoor relative humidity.

• Out Abs Humidity This is the outdoor absolute humidity based on outdoor temperature and outdoor relative humidity.

• Filter Pressure This is the filter pressure in Parcel.

• Fan Speed This is the actual ECS fan speed in percentage.

• Total Runtime This is the accumulated running time (in hours) since the unit was powered.

• Fan Runtime This is the accumulated fan running time (in hours) since the unit was powered.

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4.7 Monitor Alarms Menu This menu monitors the status in the system. There are “ALL” column and Unit column to observe status. At “ALL” column, the status shows “yes” if all units have the alarm , “no” if no units have this alarm or “---” if some units have this alarm. At “Unit” column, the LEDs and display of the target unit should be flashing and the status shows “yes” if the alarm is active or “no” if it is inactive. Some alarms can be shown on Indoor Unit Display as well, see Appendix A for more information. The following are some examples, Figure 3.6-1 Unit 1 with AC High Active at “Unit 1” column A C H i g h U n i t 1 : Y e s

Figure 3.6-2 All Units with AC Low Active at “ALL” column A C L o w A L L : Y e s

Figure 3.6-3 Some Units with BCU Fault at “ALL” column B C U F a u l t A L L : - - -

• AC High This status indicates the AC supply voltage to the airconditioning unit is too high (> 255V). “AC Fault” alarm is activated with this status.

• AC Low *This status indicates the AC supply voltage to the airconditioning unit is too low (< 165V). “AC Fault” alarm is activated with this status.

• Running Battery This status indicates the indoor unit is running on battery (BCU is turned on). The default screen shows running in Backup mode when one or more than one unit set this status. The backup LED of the unit running on battery should light up, see Appendix A for more information.

• In/Fan Comms *This status indicates there is communication fault between Indoor control board and fan control board (both located in the indoor unit). “Unit Alarm” alarm is active with this status.

• UTS Fan Fault This status indicates there is operation fault (i.e. motor jam) on indoor unit fan control board. “Unit Fault” alarm is active with this status.

• BCU Fault This status indicates BCU has been connected to the system, but it is unable to supply enough DC power (< 200V) to the unit. “BCU Fault” alarm is active with this status. This could indicate either a fault in the BCU, too high/low supply voltage to the BCU or a faulty connection between the BCU and indoor unit.

• CoolBus Fault This status indicates there is a CoolBus communication faulty. “Unit Alarm” alarm is active with this status.

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• Service Due This status indicates the time (in weeks) since last service exceeds the service interval. “Service Due” alarm is active with this status.

• Service Overdue This status indicates the time (in weeks) since last service exceeds the service overdue interval. “Service Overdue” alarm is active with this status.

• UTS Temp sensor This status indicates there is sensor reading error on the system. These sensors included return temperature sensor, ambient sensor, evaporator sensor, condenser sensor, suction sensor and discharge sensor. “Unit Alarm” alarm is active with this status

• Comp High Temp This status indicates the compressor temperature is currently too high (i.e. T > 120 �). The outdoor unit will protectively shutdown until the temperature dropped back. “Unit Alarm” alarm is active with this status.

• Evaporator T Low This status indicates the outdoor unit is currently in Exchanger Frost Protection (i.e. Tevaporator≤+2℃). “Unit Alarm” alarm is active with this status

• Comp Overcurrent This status indicates the outdoor unit is currently in current protection (i.e. Icomp > 11A). “Unit Alarm” alarm is active with this status

• Condenser T High This status indicates the outdoor unit is currently in over-refrigeration protection (i.e. Tcondenser≥58℃). “Unit Alarm” alarm is active with this status

• Comp Overvoltage This status indicates the outdoor unit is currently in voltage protection (i.e. Vbus< 320V or Vbus> 400V). “Unit Alarm” alarm is active with this status

• Discharge T High This status indicates the outdoor unit is currently in Discharge protection (i.e. Tdischarge≥95℃). “Unit Alarm” alarm is active with this status

• OverT Shutdown This status indicates the compressor shutdown due the frequent over-temperature (Comp High Temp). “Unit Fault” alarm is active with this status

• In/Outdoor Comms *This status indicates there is communication fault between indoor unit and outdoor unit. “Unit Fault” alarm is active with this status

• Outdoor Fault This status indicates there is outdoor units fault which including EEPROM error and Unit Startup Error. “Unit Fault” alarm is active with this status

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• Dehumidify (Feature is currently not implemented) (This item is applicable only when the T-1C/TRH-2C is connected) This status indicates the system is in dehumidifying mode. T-1C/TRH-2C sends an activation command after the dehumidify rate exceeds alarm activation level; the T-1C/TRH-2C sends a deactivation command after the dehumidify rate below the deactivation level. “Unit Alarm” alarm is active with this status

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4.8 Configure Menu The items inside this menu allow configuring the setting in the Central Control Unit.

4.8.1 Set Password Central Control Unit allows updating the password so as to enhance security of the system. The “Set Password” screen is shown in figure 3.7.1-1. Figure 3.7.1-1 “Set Password” screen N E W P W : * * * * R E T Y P E : * * * *

Before changing the password and if the password has not been entered, Central Control Unit will ask for the password for verification. Afterward, it is allowed update the password as shown in figure 3.7.1-2. Figure 3.7.1-2 Edit the password N E W P W : 0 * * * R E T Y P E : * * * *

The password is a 4 single digit numbers. By pressing “LEFT” or “RIGHT”, it can select the digits, and by pressing “UP” or “DOWN”, it can change the number. The Central Control Unit then requires user to retype the same new password for re-confirmation as shown in figure 3.7.1-3. Figure 3.7.1-3 Retype the password N E W P W : * * * * R E T Y P E : 0 * * *

If those passwords are matched, it returns to “Set Password” title and the password has been updated. Otherwise, if they are not matched, the mismatch text will be shown as in figure 3.7.1-4 Figure 3.7.1-4 Passwords mismatch N E W P W : * * * * R E T Y P E : M I S M A T C H

In this case, please repeat the above procedures.

4.8.2 Set Date/Time Central Control Unit has an internal real time clock to precisely obtain the date and time. These values are mainly used in determine the setback period and the alarm log. The “Set Date/Time” description is shown in figure 3.7.2-1. Figure 3.7.2-1 “Set Date/Time” Description

This clock is running over time unless it is in update mode.

4.8.3 Setback Period Setback Period is a range of time the system entered to Setback mode in order to saving the energy. The “Setback Period” description is shown in figure 3.7.3-1

0 5 :1 : 5 1 UHT9 0 0 2 0 / 0 2 8 /

4 Hour Minute Second

Weekday Year Month Date

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Figure 3.7.3-1 “Setback Period” Description

In this example, this setback period should be from 10am to 6pm on from Monday to Friday. The system is in setback mode during this period. Note that to disable the setback function, user might set the start hour equal to the complete hour.

4.8.4 Service Done Central Control Unit requires regular service to maintain the system quality. It generates “Service Due” and “Service Overdue” alarm after certain length of time. Technician could reset the service timer by this item after the check. By pressing “ENTER” in this item, the re-confirm screen is shown afterward as in figure 3.7.4-1 Figure 3.7.4-1 Re-confirm Screen after pressed “ENTER” at “Service Done” item A r e y o u s u r e ?

By pressing the “ENTER” again, the Service timer is reset.

4.8.5 Initialize Unit Central Control Unit can recognize there are any units (including T-1C/TRH-2C) disconnected/lost from the system. In this case, the “Unit Lost” alarm should be activated. This item is allowed to reset the status of the Control Unit. (i.e. Recount the number of unit in the system) By pressing “ENTER” in this item, the re-confirm screen is shown afterward as in figure 3.7.5-1 Figure 3.7.5-1 Re-confirm Screen after pressed “ENTER” at “Initialize Unit” item A r e y o u s u r e ?

By pressing the “ENTER” again, the Unit status is reset.

4.8.6 TESTMODE Central Control Unit can be acted as a temperature transmitter (T-1C) and transmitted a simulate indoor temperature value (TESTTEMP) periodically. Press “ENTER” can toggle “TESTMODE”.

4.8.7 TESTTEMP The simulate value used in “TESTMODE” can be configured in this item.

4.8.8 CCU Software This item shows the CCU software version.

81 oT0 1 : r u o H IRFT oN O M: y a D

Start Day Complete Day

Start Hour Complete Hour

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4.8.9 UTS Software This item shows the UTS software version.

4.8.10 ECS Software This item shows the ECS software version.

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4.9 Statistic Menu Each airconditioning unit stores detailed statistics for reference and analysis. Statistics are initialised after startup or after reset of the statistics (Section 4.9.1). The values displayed are average values of all the airconditioning units.

• Av Room Temp This is the averaged (indoor) return temperature. If a return temperature sensor is faulty, a value of zero is used for calculating the return temperature while the sensor is faulty.

• Max Room Temp This is the maximum (indoor) return temperature.

• Min Room Temp This is the minimum (indoor) return temperature.

• Av Ambient Temp This is the averaged (outdoor) ambient temperature. If an ambient temperature sensor is faulty, a value of zero is used for calculating the return temperature while the sensor is faulty. The ambient temperature sensor is located in the airstream near the outdoor heatexchanger – recirculation and other effects can affect the accuracy of the ambient temperature sensor.

• Max Ambient Temp This is the maximum ambient temperature

• Min Ambient Temp This is the minimum ambient temperature

• Av Comp Speed This is the averaged compressor speed in hertz.

• Run Time This is the running time in hour.

• Comp Run Time This is the compressor running time in hour.

• Weight Run Time This is the weighted running time in hour. Value Increments when the compressor is running at a rate proportional to the compressor speed. (1 hour at 50Hz = 1 weighted hour, 2 hours at 25Hz = 1 weighted hour, 1 hour at 75Hz = 1.5 weighted hours.

• Batt Run Time This is the battery running time in hour.

• Room Temp >=40’C This is the accumulated hours for return temperature over 40 degrees Celsius.

• Ambient >= 45’C This is the accumulated hours for ambient temperature over 45 degrees Celsius.

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• Ambient 40-44’C This is the accumulated hours for ambient temperature between 40 and 44 degrees Celsius.








• Ambient <5’C This is the accumulated hours for ambient temperature below 5 degrees Celsius.

• Av Outdoor Temp This is the averaged outdoor temperature. If the temperature value is invalid, a value of zero is used for calculating the outdoor temperature.

• Av Abs In Humid This is the averaged absolute indoor humidity. If the humidity value is invalid, a value of zero is used for calculating the indoor humidity.

• Av Abs Out Humid This is the averaged absolute outdoor humidity. If the humidity value is invalid, a value of zero is used for calculating the outdoor humidity.

4.9.1 Reset Statistic By pressing “LEFT” or “RIGHT” in Statistic Column, it jumps to “Reset” column. This column is used to reset the statistic in the indoor units. By pressing “ENTER” in this column, the re-confirm screen is shown afterward as in figure 3.8.1-1 Figure 3.8.1-1 Re-confirm Screen after pressed “ENTER” at “Reset” column in Statistic Menu A r e y o u s u r e ?

By pressing the “ENTER” again to reset the statistic.

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4.10 Alarm Log Menu Central Control Unit has logging function to record the alarm status. This function can save 96 latest logs – older alarms are overwritten. The “Alarm Log” description is shown in figure 3.9-1. Figure 3.9-1 “Alarm Log” description

The alarm log can update over time. Once a new log has been recorded, the function would pump the user to the latest log.

4.10.1 Reset Alarm Log By pressing “LEFT” or “RIGHT” in Alarm Log Column, it jumps to “Reset” column. This column is used to reset the Alarm Log. By pressing “ENTER” in this column, the re-confirm screen is shown afterward as in figure 3.8.1-1 Figure 3.8.1-1 Re-confirm Screen after pressed “ENTER” at “Reset” column in Statistic Menu A r e y o u s u r e ?

By pressing the “ENTER” again to reset the statistic.

tl u a F t i n U A51:211 0 0 ) 1 0 1 /

Log Number Date Month Hour Minute A = Activated D = Deactivated

Alarm Name

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5 Software Update This part describes how to update the Central Control Unit software step by step:

• Installing the Programming Hardware • Launching the Coolsure Programmer Application • Importing the Software Update File • Update the Central Control Unit software

5.1 Installing the Programming Hardware • Plug one end of USB cable into a USB port on the PC. • *Hold the “ESC” button on Central Control Unit and Plug the other end into the

USB port on the Unit. • The Central Control Unit connection can then be detected by the PC.

Note: This (*) part is essential for Central Control Unit to enter to programming mode.

5.2 Launching the Coolsure Programmer Application Launching the Coolsure Programmer and the programming interface appear as shown in Figure 5.2-1. If the application fails to launch, refer to the note below.

Figure 5.2-1 Coolsure Programmer interface

If the message box shows “Device removed”, repeat the steps in 5.1 and ensure the “ESC” button is held when connecting the power to the Central Control Unit. After the hardware is installed properly, the programmer shows a message “Device attached” and “Load File” is active as in Figure 5.2-2.

Figure 5.2-2 Application is active

Note: For the users who are not using Windows Vista, they will need to have the .NET framework version 2.0(higher version probably okay) installed on their computer in order to open the application. The .NET framework can be freely downloaded from Microsoft’s website. The redistributables are available at: http://www.microsoft.com/downloads/details.aspx?FamilyID=0856EACB-4362-4B0D-8EDD-AAB15C5E04F5&displaylang=enhttp://www.microsoft.com/downloads/details.aspx?FamilyID=0856EACB-4362-4B0D-8EDD-AAB15C5E04F5&displaylang=en

http://www.microsoft.com/downloads/details.aspx?FamilyID=0856EACB-4362-4B0D-8EDD-AAB15C5E04F5&displaylang=enhttp://www.microsoft.com/downloads/details.aspx?FamilyID=0856EACB-4362-4B0D-8EDD-AAB15C5E04F5&displaylang=en




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5.3 Importing the Software Update File To import a software update (Hex File) to be programmed into the Central Control Unit, click “Load File”, Browse for the Hex file and click open as shown in Figure 5.3-1

Figure 5.3-1 Import Hex File

After imported the Hex file, the “Update Software” is active in the application. An example interface is shown in Figure 5.3-2.

Figure 5.3-2 “Update Software” button is active

5.4 Update the Central Control Unit software The Central Control Unit can then be programmed by clicking “Update Software” (Figure 5.4-1). The Central Control Unit will be erased and programmed with the updated software previously imported. The bar and the dialog show the update progress status.

Figure 5.4-1 Start updating the software

If the update is completed, the programmer will show the message “Update Success” as shown in Figure 5.4-2.

Figure 5.4-2 the update is completed

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6 Troubleshooting Problem Cause Remedy

General (existed in “Active Alarm List”) “AC Fault” alarm The electricity supply failure Contact local electric

company “BCU Fault” alarm The supply to BCU is unable to

supply enough power to the unit Check the BCU power source Replace BCU

“Missing Filter” alarm Filter is missing in Fan/Filter Unit

Insert the filter to the unit

“Replace Filter” alarm The efficiency is dropped due to the filter

Replace or clean the filter

“Blocked Filter” alarm The air can hardly be drawn from outside

Check if the airflow side on the shelter is blocked

“Service Due” and “Service Overdue” alarm

The unit is idle from service over a length of time

Provide service to the unit and then reset the service timer(Section 4.8.4)

“Fan Fail” alarm Actual Fan speed is unable to reach the target speed

Check the fan connection on the fan/filter controller Replace the fan/filter controller

Indoor Temp cannot be obtain from Indoor Unit

Check below “Invalid Return Temp”

Outdoor Temp is faulty Replace Ambient Sensor

“Sensor Fault” alarm with Invalid Indoor Temp Invalid Outdoor Temp Invalid Outdoor Humidity (Value of “Monitor ECS” in “Monitor Unit”)

Outdoor Humidity is faulty Replace Ambient Sensor

Some units has been intentionally disconnected

Initialize the existing unit counter in “Initialize Unit”(Section 4.8.5)

“Unit Lost” alarm (And no unit can be detected)

CoolBus Faulty(CoolBus Comms Fault)

Replace the CoolBus cables

Individual (existed in “Monitor Alarm”) Return sensor faulty Replace indoor unit sensor Ambient sensor faulty Replace Outdoor unit sensor Evaporator sensor faulty Replace indoor unit sensor Condenser sensor faulty Replace Outdoor unit sensor Suction sensor faulty Replace Outdoor unit sensor

“Temp Sensor” status with Invalid Return Temp Invalid Ambient Temp Invalid Evaporator Temp Invalid Condenser Temp Invalid Suction Temp Invalid Discharge Temp (Value of “Monitor UTS” in “Monitor Unit”)

Discharge sensor faulty Replace Outdoor unit sensor

“Indoor Fan Fault” status Indoor Fan might be jammed Check if windout is blocked “In/Fan Comms” status On-board 6 ways wire faulty Replace the 6-ways wire “In/Outdoor Comms” status

Signal cable faulty Check connection of the cable

“OverT Shutdown” Or “Outdoor Fault” status

Outdoor Unit shutdown due to frequent over-temp(Comp High Temp) Unit shutdown due to startup Error

These status are unrecoverable, the unit should be restarted (turn the power off and on)

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Appendix A. Indoor Unit Alarm Figure A-1 Indoor Unit Display Interface

Legend: • The OK LED lights up indicated the unit is working properly. • The BACKUP LED lights up indicated the unit is running in battery. • The ALARM LED lights up indicated the unit has normal alarm. • The ALARM LED flashes indicated the unit has urgent alarm. • The Display shows value and alarm label (if exists) by turns:

o The value shows the actual compressor speed when the Speed LED lights up.

o When the Speed LED goes out, the display shows the alarm labels and return temp in turn if there is alarm; otherwise, the display shows return temp only.

Alarm Description:

Label Definition(Status Name) Urgent? Correlated Alarm From Indoor Unit

E0 CoolBus Fault No Unit Alarm

F0 Return Sensor Fault(Temp Sensor) Yes Unit Alarm

F1 Evaporator Sensor Fault(Temp Sensor) No Unit Alarm From Fan Inverter

E1 AC High No AC Fault

E2 AC Low No AC Fault

E3 Indoor/Fan Communication Fault(In/Fan Comms) No Unit Alarm

F2 BCU Fault Yes BCU Fault F3 Indoor Fan Fault Yes Unit Fault

From Outdoor Unit

E4 Ambient Sensor Fault(Temp Sensor) No Unit Alarm E5 Condenser Sensor Fault(Temp Sensor) No Unit Alarm E6 Suction Sensor Fault(Temp Sensor) No Unit Alarm E7 Discharge Sensor Fault(Temp Sensor) No Unit Alarm F4 Outdoor Fault Yes Unit Fault F5 Discharge Over-Temp Error(OverT Shutdown) Yes Unit Fault F6 Indoor/Outdoor Communication Fault (In/Outdoor Comms) Yes Unit Fault P0 Current Protection(Comp Overcurrent) No Unit Alarm P1 Over Refrigeration Protection(Condenser T High) No Unit Alarm P2 Voltage Protection(Comp Overvoltage) No Unit Alarm P3 Discharge Protection(Discharge T High) No Unit Alarm

OK BACKUP ALARM SPEED

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Appendix B. Parameter Information The parameter ranges and resolution in different menu are described as follow:

Factory default settings of Alarm Setting menu are defined as follow:

Setpoints Menu Range Monitor Unit Menu

(Monitor UTS) Range Monitor Unit Menu

(Monitor ECS) Range Normal Setpoint [20.0:40.0] Compressor Speed [0:75] Indoor Temp [-20.0:60.0]

Setback Setpoint [20.0:40.0] Indoor Fan Speed [0:100] Outdoor Temp [-20.0:60.0]

Backup Setpoint [20.0:40.0] Outdoor Fan Spd [0:100] In Rel Humidity [0:100]

Track Delta [0.0:20.0] Dehumidify Rate [0:100] Out Rel Humidity [0:100]

Delta Temp [0.0:20.0] EEV Setting [0:500] In Abs Humidity [0.0:25.5]

UTS Fan@Comp Off [0:100] Return Temp [-16.0:62.0] Out Abs Humidity [0.0:25.5]

UTS Capacity [50:200] Ambient Temp [-20.0:80.0] Filter Pressure [0:999]

Humidity Setpt [0:100] Evaporator Temp [-16.0:62.0] Fan Speed [0:100]

Delta Humidity [0:100] Condenser Temp [-20.0:80.0] Total Runtime [0:999999]

Service Interval [0:212] Suction Temp [-20.0:80.0] Fan Runtime [0:999999]

Service Overdue [0:212] Discharge Temp [0.0:150.0]

I/O Delta AC ON [0.0:5.0] AC Supply Volt [0:1020]

I/O Delta AC OFF [0.0:5.0] BCU Voltage [0:1020]

ECS Fan Min Spd [30:70] Input Power (sum)

ECS Fan Max Spd [70:120] Total Run Time [0:999999]

Max Humidity [15:30] Comp Run Time [0:999999]

Weight Run Time [0:999999]

Alarm Setting Menu Range Time till service [0:212]

High Temp Alarm [0.0:50.0]

Vhigh Temp Alarm [0.0:50.0]

Low Temp Alarm [0.0:50.0] Vlow Temp Alarm [0.0:50.0] High Humidity [0:100] Parameter Type: Resolution High Latent Load [0:100] Temperature 0.1 UTS Comp Hi Spd [0:100] EEV 2 Missing Filter [0:999] Voltage 4 Replace Filter [0:999] Absolute Humidity 0.1 Blocked Filter [0:999] Other 1

Default Level Activate Level Deactivate Level Default Level High Temp Alarm A1 40.0 38.0 Unit Fault A1 Vhigh Temp Alarm A2 45.0 43.0 Unit Fault >1 A2 Low Temp Alarm O1 20.0 22.0 Unit Shutdown A1 Vlow Temp Alarm A1 10.0 12.0 Unit Shutdown >1 A2 High Humidity Alarm -- 70 65 BCU Fault A1 Low Humidity Alarm -- 25 30 BCU Fault >1 A2 High Latent Load -- 20 15 AC Fault O1 High Speed Alarm -- 70 65 AC Fault >1 A1 Service Due O1 Service Overdue A1 In Power Limit -- Superheat -- Unit Lost A1

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Factory default settings stored in Indoor Unit and fan/filter unit are defined as follow:

Indoor Unit Default Value Fan/filter unit Default Value Normal Setpoint 21.0 Normal Setpoint 21.0 Setback Setpoint 35.0 Setback Setpoint 35.0 Backup Setpoint 24.0 Backup Setpoint 24.0 Backup Setpoint 24.0 Delta Temp 1.0

Track Delta 0.0 I/O Delta AC ON 3.5 Delta Temp 1.0 I/O Delta AC OFF 2.0

UTS Fan@Comp Off 56 ECS Fan Min Spd 40 UTS Capacity 160 ECS Fan Max Spd 100 Humidity Setpt 55 Max Humidity 27 Delta Humidity 5 Service Interval 13

Service Overdue 17 Activate Level Deactivate Level Activate Level Deactivate Level Relay

High Temp Alarm 40.0 38.0 High Temp Alarm 40.0 38.0 1 Vhigh Temp Alarm 45.0 43.0 Low Temp Alarm 20.0 22.0 0 Low Temp Alarm 20.0 22.0 High Humidity 20 15 0 Vlow Temp Alarm 10.0 12.0 Missing Filter 70 65 2 High Latent Load 20 15 Replace Filter 220 180 0

UTS Comp Hi Spd 70 65 Blocked Filter 250 180 2 ECS Fan Fail 2 ECS Senor Fault 2

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Appendix C. Application Menu Overview


Documents

Central Control Unit User Manual Pr2 - UTS + ECS