S08P_SRD_11

Industriestraße 60,Postfach 11 32,Tel. +49(0)34204/85- 0

D-04435 SchkeuditzD-04431 SchkeuditzFax.+49(0)34204/85-302

Software-Specification

S08P IRAN PROJECT

S08P701.000-00ABE / 9609036

Issue: xx.xx.2004

Version: 1.1

Author: F.Perez/M.Rentsch/J.Quinque

© HVAC FAIVELEY GMBH & CO. KG, SCHKEUDITZ, GERMANY 2004The copying, distribution and utilization of this document as well as the communication of its contents to others without expressed authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or ornamental design registration.

Revision Index

Revision Index

Version Reasons for the update Pages Prepared by:

1.0 11.08.2004 First edition all F.Perez / M.Rentsch / J.Quinque

1.1 xx.xx.2004 Wrong P5 connection, no controlling of Exhaust Fan by FPC, no input “EMERGENCY”

2-10, 15 J.Quinque

Distribution: Astra Mr.

Mr.

Mr.

HFG TE Mr.

TP Ms.

TM Mr.

Pages 23

S08P IRAN PROJECT Issue: xx.xx.2004 Software SpecificationVersion: 1.1

S08P701.000-00ABE / 9609036 Author F.Perez/M.Rentsch/J.Quinque

Page II

Error! Style not defined. Error! Style not defined.

1 Table of Contents

1 TABLE OF CONTENTS............................................................1–1

2 INTRODUCTION.......................................................................2–1

3 INPUTS AND OUTPUTS OF THE CONTROLLER...................3–2

3.1 Analogue inputs........................................................................................3–2

3.2 Digital inputs..............................................................................................3–2

3.3 Digital outputs...........................................................................................3–3

4 REGULATION AND CONTROL................................................4–4

4.1 Operating modes.......................................................................................4–4

4.1.1 Off Mode.....................................................................................................4–4

4.1.2 Ventilation Mode..........................................................................................4–4

4.1.3 Heating and Cooling mode..........................................................................4–4

4.2 Set point definition....................................................................................4–5

5 CONTROL OF THE OUTPUTS.................................................5–6

5.1 Supply air fan.............................................................................................5–6

5.2 Exhaust air fan...........................................................................................5–6

5.3 Entrance heaters.......................................................................................5–7

5.4 Main heater................................................................................................5–7

5.5 Compressor...............................................................................................5–8

5.6 Condenser fans.........................................................................................5–9

5.7 Flap.............................................................................................................5–9

5.8 Error Memory...........................................................................................5–10

6 TEST MODES..........................................................................6–15

6.1 Automatic test modes.............................................................................6–15

6.2 Manual test modes..................................................................................6–15

7 Abbreviation index...................................................................7–17



Page 1


2 Introduction

The air conditioning system is destined to be mounted on the passenger coaches type Couchette manufactured by Astra Vagoane Calatori for the Iranian Railways.

Coaches are Z2 type in accordance with UIC 567-2, able to run with a max. speed of 160 km/hour.

Climatic conditions: -25°C / 80°C (sun) or 55°C (shadow); humidity from 13% up to 99%; atmosphere with dust, sand and salt.

The comfort conditions in passenger area are in accordance with UIC 553. All passenger coaches are equipped with a fully automatic air conditioning system under frame mounted.

Conditioned air is blown into the coach through air outlets arranged along the sidewall (ejecto-convector) and underneath the seats.

Basically the functional remains the same as for the project S59L passenger coaches for Romania.

Other documents related to this project:

Contract 2538 - S08P

Technical Information S08P

Technical Conditions – Air Conditioning Installation April 2004



Page 1


3 Inputs and outputs of the controller

3.1 Analogue inputs

Device Adr. P7 Signal Signal name

3B21 NTC_02 A/B4 AI_Ti_V1 Temperature entrance 1 + toilet 1

3B22 NTC_03 A/B5 AI_Ti_V2 Temperature entrance 2 + toilet 2

3B24 NTC_04 A/B6 AI_Te Temperature fresh air

3B23 NTC_05 A/B7 AI_Td Temperature supply air

3.2 Digital inputs


3F52 DI_01 A2 DI_MBP1_PD Pressostat MBP1 – pump down

3F53 DI_02 B2 DI_MBP2_PR Pressostat MBP2 – power reduction

3F27

3F28

DI_03 A3 DI_EH_SC_OK Safety chain heater OK

3F60 DI_04 B3 DI_SF_AF_OK Air flow controller return information

3F51

3F50

3F40

3F30

3K24

DI_05 A4 DI_CPR_SC_OK Safety chain compressor OK

3F44 DI_06 B4 DI_SF_TH_OK Motor protection + thermostat supply fan (1L=OK)

3F54 DI_07 A5 DI_MHP1_CDR Control pressostat 1 condenser fan

3F4 DI_08 B5 DI_TM_COOL Button test mode cooling

3F3 DI_09 A6 DI_TM_HEAT Button test mode heating

3S1 DI_10 B6 DI_VENT_ON Switch ventilation on

3S1 DI_11 A7 DI_HVAC_ON Switch air conditioning on

3F54 DI_12 B7 DI_MHP2_CDR Control pressostat 2 condenser fan


3F41 DI_13 A2 DI_CDR1_TH_OK Thermo junction condenser fan 1

DI_14 B2

3M2 DI_15 A3 DI_FPRA 100% return air position

1K31

1K4

DI_16 B3 DI_400V_OK 400V 3 phases OK

3F21 DI_17 A4 DI_SF_MSW Return information micro switch (MSW) supply fan (1L=OK)

3F12 DI_18 B4 DI_EH_ESTI_OK ESTI-release heater



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3F13

3K24 DI_19 A5 DI_CPR_MSW Return information micro switch (MSW) compressor (1L=OK)

DI_20 B5

DI_21 A6

3K23 DI_22 B6 DI_EH_MSW Return information micro switch (MSW) heater (1L=OK)

3F42 DI_23 A7 DI_CDR2_TH_OK Thermo junction condenser fan 2

3F43 DI_24 B7 DI_CDR3_TH_OK Thermo junction condenser fan 3

3.3 Digital outputs


3K11 DO_01 A1 DO_SF_SL Ventilation low rotation speed

3K12 DO_02 B1 DO_SF_MI Ventilation medium rotation speed

3K13 DO_03 A2 DO_SF_HI Ventilation high rotation speed

3M2 DO_04 B2 DO_FDRA Flap control direction 100% return air

3M2 DO_05 A4 DO_FDOA Flap control direction 100% outside air

3K6 DO_06 B4 DO_PRECOND Pre-cooling / pre-heating active

3K3 DO_07 A5 DO_EH_V1 Heater entrance 1 + toilet 1

3K4 DO_08 B5 DO_EH_V2 Heater entrance 2 + toilet 2

3F24 DO_09 A7 DO_CPR_OFF Message to MSW compressor off because of error

3F21 DO_10 B7 DO_SF_OFF Message to MSW supply fan off because of error

3F23 DO_11 A8 DO_EH_OFF Message to MSW heater off because of error

DO_12 B8


3K1 DO_13 A1 DO_EH1 Main heater step 1

3K2 DO_14 A2 DO_EH2 Main heater step 2

3K31 DO_15 A3 DO_CDR1 Condenser fan 1

3K32 DO_16 B3 DO_CDR2 Condenser fan 2

3K33 DO_17 A4 DO_CDR3 Condenser fan 3

3K30 DO_18 B4 DO_CPR Compressor on

3Y1 DO_19 A6 DO_MV1 Solenoid valve evaporator 1

3Y2 DO_20 B6 DO_MV2 Solenoid valve evaporator 2

3Y3 DO_21 A7 DO_CPR_4C Compressor 4 cylinders

3Y4 DO_22 B7 DO_CPR_6C Compressor 6 Cylinders

DO_23 A8

DO_24 B8



Page 3


4 Regulation and control

For the Regulation of the HVAC-system there is a FPC24 controller installed, which controls and regulates the air conditioning unit through outside, supply air and room temperature under consideration of the set point given as well as the safety chains for the devices.

The regulation takes place automatically to the given set point, depending on the chosen operating mode.

4.1 Operating modes

The operating mode selector “Z-Clim” offers three possibilities:

position “0” : everything is off

position “¼” : ventilation and exhaust

position “1” : cooling or heating mode automatically selected by the controller

4.1.1 Off Mode

In this mode, the HVAC-system is completely turned off.

4.1.2 Ventilation Mode

Selection of the position “¼” of the “Z-Clim” device will command the ventilation mode.In this mode, only the supply and exhaust fan are active. There are three different speeds for the supply fan, which depend on the outside temperature:

outside temperature below 10°C: low speed / heating mode

outside temperature between 10 and 26°C: medium speed

outside temperature beyond 26°C: high speed / cooling mode

These are reached by switching the supply voltage of the fan.

The following outputs of the FPC24 are being used in “Ventilation mode”:

DQ_01 Ventilation low speed

DQ_02 Ventilation medium speed

DQ_03 Ventilation high speed

DQ_15 Exhaust air fan

4.1.3 Heating and Cooling mode

Selection of the position “1” of the “Z-Clim” device will command the heating or cooling mode.In this mode, the regulation takes place based on the relation between room and set point temperature. The controller automatically detects, if heating or cooling mode is required from the temperatures it reads at its analogue inputs.

Depending on which mode is active, either the compressor or the heater is being activated.The supply air fan and the exhaust do run too in this mode, except for the exhaust fan is being locked in pre-heating or pre-cooling mode.



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Conditions before running in heating or cooling mode are:

a successful ventilation test safety devices like thermostat (heating) or safety pressure switch (cooling) are in normal

operation. position of the micro switches Dj (SEC) for heating and Dj (Ref) for cooling are normal emergency button BP (URG) CLM is not activated

The following outputs of the FPC24 are being used:

DQ_01 Ventilation low speed DQ_02 Ventilation medium speed DQ_03 Ventilation high speed DQ_04 Flap control direction 100% return air DQ_05 Flap control direction 100% outside air DQ_06 Pre-heating / pre-cooling active DQ_07 Heater entrance 1 + toilet 1 DQ_08 Heater entrance 2 + toilet 2 DQ_09 Message to MSW compressor off because of error DQ_10 Message to MSW supply fan off because of error DQ_11 Message to MSW heater off because of error DQ_13 Main heater step 1 DQ_14 Main heater step 2 DQ_15 Condenser fan 1 DQ_16 Condenser fan 2 DQ_17 Condenser fan 3 DQ_18 Compressor on DQ_19 Solenoid valve evaporator 1 DQ_20 Solenoid valve evaporator 2 DQ_21 Compressor 4 cylinders DQ_22 Compressor 6 cylinders DQ_23 free DQ_24 free

A change of mode from cooling in heating or vice versa occurs with each time 10 minutes of transition in neutral mode and of 20 minutes after pre-heating or pre-cooling.

In pre-heating or pre-cooling mode, the fresh air amount will be reduced to zero by closing the mix air flap on the fresh air opening.

4.2 Set point definition

The set point for the platform and toilets is fixed at 22°C.

For the compartments the set point is defined as the lowest value given by the compartment modules plus ( 0,25 * ( Te - 19°C ) ), if the outside temperature is higher than 19°C.



Page 5


5 Control of the outputs

5.1 Supply air fan

The fan will be controlled if…

400V are present DI_400V_OK = 1L

System is set to “Ventilation mode” OR DI_VENT_ON = 1L ORto “Air conditioning mode” DI_HVAC_ON = 1L

Control of outputs…

Operation Mode External Temp. Ventilation Speed Flap Position Exhaust FanPreheating -25°<Te<-15° Slow

(0) 0m3/h → closed

StoppedPrecooling 10°<Te<26° MiddleTe>26° High

Heating -25°<Te<-5° Slow (4) 615m3/h → t#54s

in Operation-5°≤Te<19° Middle (3) 820m3/h → t#44sCooling 10°≤Te<26°

26°≤Te<50°High

(2) 615m3/h → t#25s

50°≤Te<52° (1) 410m3/h → t#2s

Te≥52° (0) 205m3/h → closed

26°≤Te<50°High

(3) 615m3/h50°≤Te<52° (2) 410m3/h

Te≥52° (1) 205m3/h

Expected return information…

Air flow controller reports air flow DI_SF_AF_OK = 1L

Motor protection + thermostat supply fan OK DI_SF_TH_OK = 1L

Micro switch supply fan not activated DI_SF_MSW = 0L

The fan will be locked if…

Motor protection or thermostat triggered DI_SF_TH_OK = 0L

Air flow controller reports no air flow while DI_SF_AF_OK = 0L ANDfan is running (DO_SF_SL = 1L (DQ_01) OR DO_SF_MI = 1L (DQ_02) OR DO_SF_HI = 1L (DQ_03))

Air flow controller reports air flow while DI_SF_AF_OK = 1L ANDfan is turned off (DO_SF_SL = 0L (DQ_01) AND DO_SF_MI = 0L (DQ_02) AND DO_SF_HI = 0L (DQ_03))

Emergency switch is activated DI_SF_EMRG = 1L

Micro switch supply fan is activated DI_SF_MSW = 1L

5.2 Entrance heaters



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The heaters will be controlled if…


System is set to “Air conditioning mode” DI_HVAC_ON = 1L

Air flow controller reported air flow for 60sec DI_SF_AF_OK = 1L (for 60sec)


Heater entrance 1 + toilet 1 on (3min cycle length) DO_EH_V1 = 1L (DQ_07)

Heater entrance 2 + toilet 2 on (3min cycle length) DO_EH_V2 = 1L (DQ_08)

5.3 Main heater

The heater will be controlled if…





Main heater step 1 on DO_EH1 = 1L (DQ_13)

Main heater step 2 on DO_EH2 = 1L (DQ_14)


Safety chain heater OK DI_EH_SC_OK = 1L

ESTI for heater OK DI_EH_ESTI_OK = 1L

Micro switch heater not activated DI_EH_MSW = 0L

The heater will be locked if…

Safety chain heater not OK DI_EH_SC_OK = 0L

ESTI for heater not OK DI_EH_ESTI_OK = 0L

Micro switch heater activated DI_EH_MSW = 1L

An error code/message will be created if… Duct temperature does not increase by 3K in 3min ΔAI_Td < 3K (in 3min)

5.4 Compressor

The compressor will be controlled if…





Compressor on with 2 cylinders DO_CPR = 1L (DQ_18) AND DO_CPR_4C = 1L (DQ_21) AND DO_CPR_6C = 1L (DQ_22)

Compressor on with 4 cylinders DO_CPR = 1L (DQ_18) AND DO_CPR_4C = 1L (DQ_21)



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Compressor on with 6 cylinders DO_CPR = 1L (DQ_18) AND DO_CPR_6C = 1L (DQ_22)

If outside temperature is higher than 40°C, AI_Te > 40°C2min forerun before compressor start… Condenser fan 1 on OR DO_CDR1 = 1L (DQ_15) OR

Condenser fan 2 on OR DO_CDR2 = 1L (DQ_16) ORCondenser fan 3 on DO_CDR3 = 1L (DQ_17)

If power reduction is activated OR DI_MBP2_PR = 1L ORoutside temperature is higher than 52°C OR AI_Te > 52°C ORone condenser fan defective… (DI_CDR1_TH_OK = 0L OR DI_CDR2_TH_OK = 0L OR DI_CDR3_TH_OK = 0L) Compressor runs with 4 cylinder max.

If two or more condenser fans are defective… Compressor runs with 2 cylinders max.

If compressor runs with 2 cylinders… Open solenoid valve 1 (50% cooling capacity) OR DO_MV1 = 1L (DQ_19) OR

Open solenoid valve 2 (50% cooling capacity) DO_MV2 = 1L (DQ_20)

If compressor runs with 4 or more cylinders… Open solenoid valve 1 (50% cooling capacity) AND DO_MV1 = 1L (DQ_19) AND

Open solenoid valve 2 (50% cooling capacity) DO_MV2 = 1L (DQ_20)

Pump down mode… Close solenoid valve 1 (50% cooling capacity) AND DO_MV1 = 0L (DQ_19) AND

Close solenoid valve 2 (50% cooling capacity) DO_MV2 = 0L (DQ_20) Pressostat power reduction activated DI_MBP2_PR = 1L

Switch from 6 to 4 cylinders (if compressor isrunning with 6 cylinders)

Pressostat pump down activated OR DI_MBP1_PD = 1Lmax 2min after pump down mode start… Turn off compressor DO_CPR = 0L (DQ_18)


Safety chain compressor OK DI_CPR_SC_OK = 1L

Micro switch compressor not activated DI_CPR_MSW = 0L

The compressor will be locked if…

Safety chain compressor not OK DI_CPR_SC_OK = 0L

Micro switch compressor activated DI_CPW_MSW = 1L

An error code/message will be created if…

Duct temperature does not decrease by 3K in 3min ΔAI_Td < 3K (in 3min)

5.5 Condenser fans

The fans will be controlled if…




If compressor is on DO_CPR = 1L (DQ_18) Condenser fan 1 on DO_CDR1 = 1L (DQ_15)



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If control pressostat 1 activated OR DI_MHP1_CDR = 1LCondenser fan 1 on AND DO_CDR1 = 1L (DQ_15)Thermo junction condenser fan 1 not OK DI_CDR1_TH_OK = 0L Condenser fan 2 on DO_CDR2 = 1L (DQ_16)

If control pressostat 2 activated OR DI_MHP2_CDR = 1LCondenser fan 2 on AND DO_CDR2 = 1L (DQ_16)Thermo junction condenser fan 2 not OK DI_CDR2_TH_OK = 0L Condenser fan 3 on DO_CDR3 = 1L (DQ_17)


Thermo junction condenser fan 1 OK DI_CDR1_TH_OK = 1L



The fans will be locked if…

Thermo junction condenser fan 1 not OK DI_CDR1_TH_OK = 0L



5.6 Flap

The flap will be controlled if…

System is set to “Ventilation mode” OR DI_VENT_ON = 1Lto “Air conditioning mode” DI_HVAC_ON = 1L


Operation Mode External Temp. Ventilation Speed Flap Position Exhaust FanPreheating -25°<Te<-15° Slow

(0) 0m3/h → closed

StoppedPrecooling 10°<Te<26° MiddleTe>26° High

Heating -25°<Te<-5° Slow (4) 615m3/h → t#54s

in Operation-5°≤Te<19° Middle (3) 820m3/h → t#44sCooling 10°≤Te<26°

26°≤Te<50°High

(2) 615m3/h → t#25s

50°≤Te<52° (1) 410m3/h → t#2s

Te≥52° (0) 205m3/h → closed



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If system is in pre-heating or pre-cooling mode DO_PRECOND = 1L (DQ_06) Move flap to position 100% return air DO_FDRA = 1L (DQ_04)


Reference point (100% return air position) DI_FPRA = 1L

5.7 Error Memory

Code Slot Function Reason Comment (emergency routine)

900 001 Fault sensor AI_02 „Temperature V1“

Short or open circuitTemperature V2 as reference value

905 002Fault sensor AI_03 „Temperature V2“ Short or open circuit

Temperature V1 as Reference value

945 003Fault sensor AI_04 „Outside temperature“ Short or open circuit

Switch outside temperature to fixed value 18°C

920 004Fault sensor AI_05

„Duct temperature“Short or open circuit

Switch from „Duct-“ to „Roomregulation“ and 50% heating capacity

101 005Supply fan thermal fault

DI_20_SF_TH_OK

Thermal overload supply fan

D_DF_SF_THNo air conditioning possible

102 006Supply fan fault

DI_17_SF_MSW

Micro switch supply fan was not activated by FPC24

D_DF_SF_MSW_NOK

No air conditioning possible

105 007Supply fan fault air flow

DI_04_SF_AF_OK

No return information supply fan air flow controller

D_DF_SF_AF_NOK


107 008Air flow controller fault

DI_04_SF_AF_OK

Return information air flow controller w/o supply fan

D_DF_AF_NOK


109 009Supply fan emergency switch

DI_14_SF_EMRG

Activation emergency switch ventilation

D_DF_SF_EMRG


010 free

200 011

Compressor fault safety chain

DI_05_CPR_SC_OK

Activation safety chain compressor

D_DF_CPR_SC

Venting with 100% fresh air, when Te < Ti

202 012Compressor fault

DI_19_CPR_MSW

Micro switch compressor was not activated by FPC24

D_DF_CPR_MSW_NOK

Venting with 100% fresh air, when Te < Ti

Code Slot Function Reason Comment (emergency



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routine)

208 013Fault cooling

AI_05_Td

After 3 minutes no duct temperature decrease of 3K

D_DF_TD_CPR

Transmission of a message

261 014Condenser fan 1 thermal fault

DI_13_CDR1_TH_OK

Thermal overload condenser fan 1

D_DF_CDR1_TH

Switch to condenser fans 2 and 3


DI_23_CDR1_TH_OK


D_DF_CDR2_TH



DI_24_CDR3_TH_OK


D_DF_CDR3_TH


300 017Heater fault safety chain

DI_03_EH_SC_OK

Activation safety chain heater

D_DF_EH_SC

Venting with 100% return air 15m and fresh air 5m alternately

303 018Heater fault

DI_22_EH_MSW

Micro switch heater was not activated by FPC24

D_DF_EH_MSW_NOK


306 019Fault heating

AI_05_Td

After 3 minutes no duct temperature increase of 3K

D_DF_TD_EH


308 020Heater ESTI fault DI_20_EH_ESTI_OK

Thermal overload ESTI heater

D_DF_EH_ESTI


180 021Fault outside-/return air flap

DI_15_FPRAMaximum flap running time No flap control

181 022

Fault final pos. outside-/return air flap

DI_15_FPRA

Final pos. remains active despite flap movement

D_DF_FP_POS


821 023No data connection to PTM 1 > t#5min

CAN bus failure or PTM defective

DF_COM_PTM1

Compartment is being ignored in the power demand calculation

822 024 No data connection to PTM 2 > t#5min


DF_COM_PTM2




DF_COM_PTM3




DF_COM_PTM4


Code Slot Function Reason Comment (emergency



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routine)



DF_COM_PTM5




DF_COM_PTM6




DF_COM_PTM7




DF_COM_PTM8




DF_COM_PTM9




DF_COM_PTM10




DF_COM _PTM11


841 034 Sensor value from PTM1 wrong > t#3min

Sensor value out of bounds

DF_SEN_PTM1




DF_SEN_PTM2




DF_SEN_PTM3




DF_SEN_PTM4




DF_SEN_PTM5




DF_SEN_PTM6




DF_SEN_PTM7




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DF_SEN_PTM8




DF_SEN_PTM9




DF_SEN_PTM10




DF_SEN_PTM11


861 045 Sensor from PTM1 not active > t#3min

Sensor set to not active by service staff at PTM

NO_SEN_PTM1




NO_SEN_PTM2




NO_SEN_PTM3




NO_SEN_PTM4




NO_SEN_PTM5




NO_SEN_PTM6



Sensor set to not active by service staff at PTM7

NO_SEN_PTM7




NO_SEN_PTM8




NO_SEN_PTM9




NO_SEN_PTM10


871 055 Sensor set to not active by Compartment is being ignored in the power demand



Page 13


Sensor from PTM11 not active > t#3min

service staff at PTM

NO_SEN_PTM11

calculation



Page 14


6 Test modes

6.1 Automatic test modes

To start an automatic test mode, either push the button “Testmode cooling” or “Testmode heating”.The test mode will end after 10 minutes or when another test mode is being chosen.

6.2 Manual test modes

Test mode Reaction

TM_SF_SL Supply fan low speed on

TM_SF_MI Supply fan medium speed on

TM_SF_HI Supply fan high speed on

TM_SF_OFF Message „Supply fan defective“ on

TM_CPR_2CYL Supply fan medium speed on

Compressor with 2 cylinders on

Condenser fans on if demanded

Open solenoid valve 1 and 2









TM_CPR_OFF Message “Cooling defective” on

TM_MV1_OFF Close solenoid valve 1, if test mode „Cooling“ is active

TM_MV2_OFF Close solenoid valve 2, if test mode “Cooling” is active

TM_CDR1 Condenser fan 1 on



TM_EH1 Supply fan medium speed on

Heater step 1 on

TM_EH2 Supply fan medium speed on

Heater step 2 on

TM_EH_OFF Message “Heating defective” on



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Test mode Reaction

TM_EH_V1 Supply fan medium speed on

Heater entrance 1 on

TM_EH_V2 Supply fan medium speed on

Heater entrance 2 on

TM_FDOA Flap moves to position outside air

TM_FDOA_TIME Flap moves in direction outside air corresponding to entered time

TM_FDRA Flap moves to position return air

TM_FDRA_TIME Flap moves in direction return air corresponding to entered time

TM_EH_PTM1 Electrical heater department 1













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7 Abbreviation index

Abbreviation Meaning

A_ Internal analogue variable

AC_ Internal analogue constant

AI_ Analogue input variable

AQ_ Analogue output variable

D_ Internal digital variable

DC_ Internal digital constant

DF_ Default variable

DI_ Digital input variable

DQ_ Digital output variable

M_ Internal message variable

T_ Internal timer variable

AI_4_20 Analogue input variable


Tc Condenser temperature

Td(x) Duct air temperature

Tdm Average duct air temperature

Te(x) Outside air temperature

Tem Average outside air temperature

Tev Evaporator temperature

Th Heater surface temperature

Ti(x) Room air temperature

Tic Setpoint room temperature

Tim Average room air temperature

Tisb(x) Switch box inside air temperature


0L Signal state inactive

1L Signal state active

AH Air heater

AP Auxilary power

APM Auxilary power missing

BA Condition mode

BAT Battery



Page 17



BP Bypass

CDR Condenser

CF Condenser fan

CH Convection heater

CMD Comand

CPR Compressor

DC Drivers cabine

DF Default

DN Down

EF Exhaust fan

EH Electrical heater

EX Extern

FAIL Failure

FDOA Flap direction 100% outside air

FDRA Flap direction 100% return air

FEH Heater fan

FP Flap position

FPOA Flap position 100% outside air

FPRA Flap position 100% return air

HI High

HP High pressure

HVAC Heating ventilation air condition

L Left

LLV Liquid line valve

LOW Low

LP Low pressure

MAJOR_FAIL Major failure

MDL Middle

MINOR_FAIL Minor failure

MVB Multifunction Vehicle Bus

NFI No fire inside

NFO No fire outside

OC Open circuit

OFF OFF

OK OK

ON ON

OPMC Operation mode cooling



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OPMH Operation mode heating

OPMV Operation mode venting

PC Passenger cabine

PCS Permission compressor start

PD Pump down

PW Power

PWSTART Part winding start

R Right

SC Short circuit

SCN Safety chain

SEN Sensor

SEV Severe

SF Supply fan

ST Step

STRT Start

SV Solenoid valve

TEMP Temporär

TH Thermostatic

UL Unloading

UP Up

VAC Ventilation air condition



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S08P_SRD_11