Stulz C-Tech 10

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C-Tech-10 Operation Manual

Air Technology Systems, Inc.


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SETTING THE PARAMETERS Press the SETbutton to enter the modifying mode of the DIRECTLevel parameters.

Press the SETbutton to enter the modifiable field. Use theandbuttons to change the parameters value.

Press the SETbutton to confirm change.

Press the SET + MODEbuttons and hold for 3 to 5 seconds to enter the modifying mode of the FACTORYLevel parameters. Enter the code 177 and press the SETbutton to access the modifiable parameters.

For the above quick references, press the HOLDbutton to accept all changes. Press the RESUMEbutton notto accept any changes.

SETTING THE CLOCK Press the CLOCKbutton repeatedly to access the hours, minutes, and day of the week. Use theand

buttons to modify the value. Press the CLOCKbutton again to accept the new value.

CLEARING & MUTING THE ALARM Press the RESUMEbutton to silence the alarm. Press the RESUMEbutton for 3 seconds to reset any active

alarms. Note the alarm will not be cleared until the alarm condition has been eliminated.

SETTING THE TEMPERATURE SETPOINT There are 3 operating modes that are relevant to the temperature control: UNOCCUPIED, COMFORT, and

NIGHT-TIME- . Press the SETbutton to enable modification of the above 3 modes. Use theand

buttons to change the setpoint. Note the symbol being modified will be in the bottom-right hand corner ofthe display during modification. Press the HOLDbutton to accept all the changes. Press the RESUMEbuttonnot to accept any changes.

SETTING THE HUMIDITY SETPOINT Press the SETbutton for 3 seconds, the word setwill appear in the upper-right hand corner of the screen and

the actual humidity reading will become the humidity setpoint. Use theandbuttons to change thesetpoint. Press the HOLDbutton to accept all the changes. Press the RESUMEbutton not to accept any

changes.


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ALARMS AND TROUBLESHOOTING

The detection of an alarm brings about: The activation of the buzzer, if present and enabled (parameter P1not equal to 0), depending on the type of alarm.

The display of the alarm code and the letters AL, alternating with the display of the temperature

The de activation of some or all the outputs, depending on the type of alarm The activation of the alarm relay, if present (parameter H2=1), depending on the type of alarm (WARNING: alarm relay refers

only to Stand Alone models)

Note, when more than one alarm is detected at the same time, the display automatically scrolls through the occurred alarms.

Resetting the alarms

Muting the buzzer:Pressing the RESUME button for less than 3 seconds, whenever an alarm is detected, mutes the buzzer, while the outputsdeactivated by the alarm in question remain de energized. The alarm code continues to be displayed, alternating with the

measured temperature value.

Automatic reset:Some alarms are automatically reset when the cause is no longer present, that is, they are deactivated: relevant messageon the display, buzzer and alarm relay.

Manual reset:Pressing the RESUME button for more than 3 seconds, if the alarm conditions have been removed, the instrument returns to

the normal operation and the alarm relay is de-energized. If, on the other hand, the alarm conditions persist, the alarm

situation in progress remains.

Description of the alarmsDetection is immediate for all alarms except the high and low temperature alarms, which are activated after a period set byparameter P5. When the machine is turned OFF, probe alarms are detected only. The alarms which can be detected are

described in the following table:

HI T: High temperature alarm

When the temperature measured by probe B1 rises above the value specified by the parameter P3 for a period longer thanparameter P5, the buzzer and the high temperature alarm message, HI T, are activated. The alarm relay is not energized.

LO T: Low temperature alarm

When the temperature measured by probe B1 falls below the value specified by parameter P4 for a period longer thanparameter P5, the buzzer and the low temperature alarm signal, LO T, are activated. The alarm relay is not energized.

CODE TYPE OF ALARM EXPLANATION

HI T High temperature alarm The temperature measured by probe B1 has exceeded the value of parameter P3

LO T Low temperature alarm The temperature measured by probe B1 has fallen below the value of parameter P4

E ID Alarm from digital input ID3 Digital input ID3 is open

E FL Alarm from digital input ID1 Digital input ID1 is open

EE EEPROM error Read/write error in non-volatile internal memory

E SR Terminal communication error The terminal doesnt receive data from the power board

E ST Power board communication error The power board doesnt receive data from the terminal

E1 B1 probe error Ambient temperature regulation B1 probe error

E2 B2 probe error Humidity/auxiliary temperature active B2 probe error

LO H Low ambient humidity alarm The humidity measured by probe B2 is over the value of parameter P8

HI H High ambient humidity alarm The humidity measured by probe B2 is below the value of parameter P7


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E ID: Alarm from digital inputThe unit is able to detect external alarms through digital input ID3. When this is detected as being open, the system waitsfor the delay time P6 then the buzzer and the alarm message E ID are activated. If parameter P2=0 (non serious alarm),

there are no other effects; if P2=1 (serious alarm), the alarm relay is energized and there are two types of reaction: if

digital input ID1 is connected to the fan thermal cut-off , E ID switches off the outputs but not the fan, otherwise it switchesoff the outputs and the fan. When considered to be a non serious alarm (P2=0), Aria resets automatically when the cause

is no longer valid. If P2=1 (serious alarm) and, again, the cause that generated the alarm is removed, the RESUME buttonmust be pressed for more than 3 seconds (manual reset).

E FL: Filter alarmThe unit is able to detect a possible filter alarm through digital input ID1 (if H3=2). When this is detected as being openthe alarm message E FL (filter alarm) is activated. The alarm is reset automatically when its cause is removed.

EE: EEPROM alarmSignals a read and/or write error in the non-volatile internal memory (EEPROM), thus highlighting a problem in thestorage of the parameters. If this occurs, try switching the controller off and on again: If the problem persists, please

contact the local service.

E SR: Terminal communication error

Signals an error in the serial communication between the terminal and the power board: the terminal does not receive thedata. The alarm message E SR is displayed, the buzzer is activated and all outputs are de energized. The LED on the

power board blinks 3 times (normally once) in 3 seconds. The alarm is reset automatically, that is when communicationis established again. If the alarm occurs, check the two-lead serial connection between the terminal and the power

board.

E ST: Power board communication errorSignals an error in the serial communication between the terminal and the power board: the power board does not

receive the data. The alarm signal E ST is displayed, the buzzer is activated and all outputs are de energized. The LED on

the power board blinks twice (normally once) in 3 seconds. The alarm is reset automatically, that is when communica-tion is established again. If the alarm occurs, check the two-lead serial connection between the terminal and the power

board.

E1: B1 temperature regulation probe error

Signals the malfunctioning of the temperature probe used for temperature regulation (B1). Also check the positionof jumper J1. In the case of an alarm, the controller provides the alarm message E1, the buzzer and the alarm relayare activated and all outputs are de-energized, except for the supply fan. The fan stays on to allow air circulation in

public areas. The alarm is reset automatically, that is when communication is established again.

E2: B2 auxiliary probe error

Signals the malfunctioning of the B2 active probe. Also check the position of jumper J2. In the case of an alarm,the control provides the alarm message E2, the buzzer and the alarm relay are activated and the humidification and

dehumidification functions are suspended. The alarm is reset automatically, that is when the sensor starts workingcorrectly.

HI H: High humidity alarmWhen the humidity measured by probe B2 rises above the value specified by parameter P8 for a time greater than

P5, the high humidity alarm signal HI H is activated. The alarm relay and the buzzer are not activated

LO H: Low humidity alarmWhen the humidity measured by probe B2 falls below the value specified by parameter P7 for a time greater than

P5, the low humidity alarm signal LO H is activated. The alarm relay and the buzzer are not activated.


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2-Year Standard Limited Warranty:

Stulz Air Technology Systems, Inc., warrants to the original buyer of itsproducts that the goods are free from defects in material and workmanship.

Stulz Air Technology Systems, Inc.s obligation under this warranty is torepair or replace, at its option, free of charge to the customer, any part or

parts which are determined by Stulz Air Technology Systems Inc. to bedefective. The warranty is in effect for 24 months from date of shipment if a

completed Warranty Registration and Start Up Form is submitted to Stulz AirTechnology Systems, Inc. within 90 days from shipment. In the event that acompleted start-up form is not received by Stulz Air Technology Systems, Inc.

within 90 days from shipment, the companys obligation will be for a period of12 months from date of shipment. Parts replaced under warranty are war-

ranted for a period of 90 days from shipment or for the remainder of the unitwarranty period, whichever is greater.

Stulz Air Technology Systems, Inc.s warranty does not cover failures causedby improper installation, abuse, misuse, misapplication, improper or lack of

maintenance, negligence, accident, normal deterioration including wear and tear,or the use of improper parts or improper repair as determined by SATS. This

warranty does not include costs for transportation, costs for removal or reinstal-lation of equipment or labor for repairs or replacement made in the field.

THIS OBLIGATION AND LIABILITY OF STULZ AIR TECHNOLOGY SYS-TEMS, INC. UNDER THIS WARRANTY DOES NOT INCLUDE LOSSES,

DIRECT OR INDIRECT, FOR INCIDENTAL OR CONSEQUENTIAL DAM-AGES. THIS WARRANY IS IN LIEU OF ALL OTHER WARRANTIES,

EXPRESS OR IMPLIED, INCLUDING WARRANTIES OR MERCHANTABIL-ITY AND FITNESS FOR A PARTICULAR PURPOSE, AND THERE ARE NO

WARRANTIES THAT EXTEND BEYOND THE DESCRIPTION ON THE FACE

HEREOF.

Product Warranty

SATS offers a two year standard limited warranty as stated below.


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PRODUCT SUPPORT GROUP

SATSprovides its customers with a Product Support Group (PSG) which not only provides technical support and

parts but the following additional services, as requested: performance evaluations, start-up assistance and training

Technical Support

The SATSProduct Support Group (PSG) is dedicated to the prompt reply and solution to any problem encoun-

tered with a unit. Should a problem develop that cannot be resolved using this manual, you may contact PSG at(240) 529-1399 Monday through Friday from 8:00 a.m. to 5:00 p.m. EST. If a problem occurs after business hours,dial the page number (301) 414-4514 and follow the steps below:

1. Wait for the dial tone.

2. Dial your telephone number (including area code).

3. Press the pound (#) key.

4. Wait for a busy signal.

5. Hang up the telephone.

One of our service technicians will return your call. When calling to obtain support, it is vital to have the following

information readily available:

Unit Model Number (X-XXXX-XX)

Description of Problem

Obtaining Warranty Parts

Warranty inquires are to be made through the Product Support Group (PSG) at (240) 529-1399 Monday through

Friday from 8:00 a.m. to 5:00 p.m. EST. A service technician at SATSwill troubleshoot the system over thetelephone with a field service technician to determine the defect of the part. If it is determined that the part may be

defective a replacement part will be sent UPS ground. If the customer requests that warranty part(s) be sent byany other method than UPS ground the customer is responsible for the shipping charges. If you do not have

established credit withSATSyou must provide a freight carrier account number.

A written (or faxed) purchase order is required on warranty parts and must be received prior to 12:00 p.m. for sameday shipment. The purchase order must contain the following items:

Purchase Order Number

Date of Order

SATSStated Part Price (obtained from PSG)

Customer Billing Address

Shipping Address

Customer's Telephone and Fax Numbers

Contact Name

Unit Model No. &SATSItem No.

The customer is responsible for the shipping cost incurred for shipping the defective part(s) back toSATS. Returnof defective part(s) must be within 30 days at which time an evaluation of the part(s) is conducted and if the part isfound to have a manufacturing defect a credit will be issued.


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Stulz C-Tech 10