22
6. Startup and Commissioning
6.5 Commissioning
Each In-Row Cooler requires a minimum heat load for constant cooling operation. The total heat load for the room must be
greater than ~3kW (SRCOOLDXRW12) or ~7kW (SRCOOLDXRW25). If the total heat load is lower than the minimum, the
cooler will go into start/stop mode.
1. WP
:W
ater Pump
2. WL: W
ater overload switch
3. UM:Uper monitor
4. TM3: Liquid line temperature
5. TM2:Suction line temperature
6. TM1:Supply air temperature
7. TE:T
eminal 1
8. STU:T
emp.&Humid. Sensor
9. SCO:Signal Converter
10. SC:T
ouch screen
11. FS:Float Switch
12. QF7:Controller breaker
13. QF5:Indoor fan breaker
14. QF4:Heater breaker
15. QF3:Compressor breaker
16. QF2:Outdoor unit breaker
17. QF1:Main power breaker
18. M3:Outdoor fan
19. M2:Indoor fan
20. M1:Compressor
21. L
T:Low pressure sensor
22. KM2:Heater contactor 23HT
:High pressure sensor
24. HP
: High pressure switch
25. ES1:Overheat thermal link
26. EL: Heater
27. EEV
:Electronic valve
28. D
Y: DC power
29. CIV
:Compressor inverter
30. ES2:Overheat switch
SRCOOLDXRW12
