Star-Cool-Short-form-Manual-CIM-5-Version-3.pdf

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SHORT FORM SERVICE MANUAL - CIM 5 CONTROLLER



SHORT FORM SERVICE MANUAL

Operating temperature

-30˚C to +30˚C-22 F to +86 F

Ambient temperature

-30˚C to +50˚C-22 F to +122 F

Model: SC-MCI40-WC, SC-MCI40, SCI-40 and SCU-40

Refrigerant: R-134aCharged with 4.5 kg / 9.9 lb

[2]




Controller box view

Phase direction

Phase direction

Heat element

Cond. fan low

Cond. fan high

Evap. fan low

Evap. fan high

FC/Compressor

Main circuit breaker

[3]




Controller box view

Terminal block PCB

Power meas

Power in

Modem (if installed)

Transformer

[4]




Controller box view

Controller connections

Fuses: 2x 0.4/0.63 Amp.

3x 10 Amp.

Fuse: 6.3 Amp.

Recommended to raise

F1 and F2 to 0.63 Amp.

[5]




Unit rear side view

Tsuc sensor

Return air sensor

Humidity sensor

Evaporator sensor

Supply air sensors

[6]




Replacement of Tsuc sensor

Remove PVC Cover to accessTsuc sensor

Cut cable tie (one pcs). Sensor can thenbe removed

When installing the new sensor, make sure toinsert properly in tube

[7]




Replacement of air exchange sensor

Remove the two nger screws on thebutter y and remove cover plate

Remove the fourteen screws to loosenthe black cover where the air ex-sensoris mounted

Replace the sensor and install all thedismantled parts again

[8]




Air exchange sensor calibration

Close fresh air buttery

In the service menu SO5; Con-

guration menu FO6; Press “Enter” twice

Calibration is completed

[9]




Supply voltage measurements

Measure voltage output from themain circuit breaker

Measure voltage supplied to thepower meas PCB

Range -50 Hz: 335 – 460 VACRange -60 Hz: 390 – 525 VAC

[10]





Measure the voltage output fromthe power meas PCB to the maincircuit


[11]





Measure the voltage output fromthe power meas PCB to thetransformer


[12]





Measure the voltage supplied tothe transformer


[13]





Measure the voltage output of thetransformer 20 VAC

The output voltage depends onthe supply voltage

Range: 15.3 – 24.3 VAC

[14]





Measure the voltage output fromthe transformer 24 VAC

The output voltage depends onthe supply voltage

Range: 18.9 – 30.0 VAC

[15]




Check of 6,3 Amp fuse

Measure voltage from GND to top

of fuse

Fuse is ok

Range 18.9 - 30 VAC

Fuse is not ok

[16]




Check power to ON/OFF PCB

Measuring from ground toterminal 4 (see picture) showsthat the controller is turned OFF

After turning ON, the voltage canbe measured

Range 18.9 – 30.0 VAC

[17]




Check power to ON/OFF PCB

After turning ON you can read thevoltage supplied through the ”ON/OFF” PCB on terminal1 and 2

Range 15.3 – 24.3 VAC

[18]




Check Frequency Converter

Frequency converter MUST alwayshave the black foil mounted forprotection of print, componentsand your safety

WARNING - HIGH VOLTAGE

[19]





If deviation between phases ismore than 15 VAC:

Alarm ”523 FC phase loss” orAlarm ”516 FC Trip phase loss”

will be given


E.g. due to unstable power supplyfrom the genset

[20]





A green light indicates FC is ok

A ashing green light indicates FCcommunicates with the controller

A red light indicates a problem

[21]





If a red light is ON and alarm 500”FC missing” is displayed, the FChas an internal problem and mustbe replaced

The ”Warrenty repair report”must be lled out and submittedto Star Cool. The defect part mustbe properly tagged

[22]




Emergency operation

Dismount the frequency converterand connect the FC power 1 cabledirectly to the compressor supplyterminals (W, V, U)

The 3 remaining terminals (Y, X,Z) have to be tted with a wire- jumper.

[23]




Emergency operation

Go to Service menu andselect “Conguration” (S05)

In “Conguration” menuscroll down to “FC type”

(F03)

Then press return and select “NONE”

Note: remember to switchback to “Danfoss” in the “FC

type” setting when a new FCis mounted

[24]




Contactor check

Measure Ω between terminalA1 and A2

Contactor is ok

Contactor is not ok

Deviation in resistance due tochange in temperature

[25]




Temperature sensor check

Disconnect X1 on the controllerdoor

All temperature readings mustdrop to -70˚C within approxi-

mately 5-10 minutes

If one or more temperatures donot drop to -70˚C, the control-ler must be replaced

The ”Warrenty repair report”

must be lled out and sub-mitted to Star Cool. The defectpart must be properly tagged

[26]





Dismount the current defect sensor(s)according to the wiring diagram insidethe controller door

[27]





Measure the voltage between thetwo terminals on the PCB

Correct range: 4.80 > 5.05 VDC

[28]





Measure the resistance of thedisconnected sensor

Value must be according to theresistance table in the ”Operation

and Service manual”

E.g. 32.65 kΩ = 0˚C /32 F

[29]





Place the bulb in ice-waterand stir the sensor in theice-water

The displayed temperature in

the controller should be: 0˚C+/- 0.5˚C (32 F +/- 1.25 F)otherwise replace the sensor

[30]




Pressure transmitter check

Disconnect X1 on the controller door

Psuc (and Peco) value must goto 14.7 or 12.0 Bar

Pdis value must go to 45.0or 32.0 Bar

Values depends on transmittertype congured in conguration menu menu (FO7 and FO8) (NSK, AKS)

If the above mentioned values are not reached within 5-10 minutes, the control-

ler module must be replacedThe ”Warrenty repair report” must be lled out and submitted to Star Cool. Thedefect part must be properly tagged

[31]





Dismount the current defecttransmitter according to thewiring diagram inside thecontroller door

[32]





Measure voltage between GNDand 5 VDC for the transmitter.(According to the electricalwiring diagram)

Correct range:4.80 > 5.05 VDC

[33]





Reconnect GND and 5 VDC wiresfor the transmitter

Measure voltage between signalwire and GND

Check signal output from trans-mitter. Compare it to gaugereading/value found in relevanttable in the “Operational andService manual”.

[34]




Check of heat elements

Measure the voltage(across each heater pair)

Measure the resistancevalue of each disconnected heater:

210 Ω (105 Ω as a pair)Value for tray heater: 400 ΩRange: +/- 10 Ω

5

4

Y/G

3

1

6

2

10

32

1211

98

76

Hevap

45

1

14Y/G

13

X601

5

3 2

6

5

8

1

7

3

4

12

2

4

4

4

6 6

2

4

6

(15 x 0,75mm2 / 15 x AWG 18)

Hevap

23

45

67

8

9

1011

1213

14

K3

[35]




Change of parts

Always make sure to turn OFFthe main circuit breaker anddisconnect the power cable

[36]




Notes

[37]




Contacts

Internet

www.starcool.dk

Spare parts / orders

[email protected]

Service

[email protected]

Logistic

[email protected]

Technical Hot line 24/7

+45 73 64 35 00

[38]

Documents

Star-Cool-Short-form-Manual-CIM-5-Version-3.pdf