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Wiring
Figure 29. Field wiring — CICD array control panel
REQUIRED
:
Evap EWT
REQUIRED
:
Evap LWT
OPTIONAL:
Cond EWT
OPTIONAL:
Cond LWT
OPTIONAL:
Ambient Temp
OPTIONAL:
CHW Reset
0-5VDC
Analog Signal
REQUIRED :
ROUTE RS-485 NETWORK
CABLE TO "TX RS-485" ON
CONTROLLER OF FIRST
CHILLER IN ARRAY
WARNING
Hazardous voltage!
Disconnect all electrical power
including remote disconnects before
servicing unit. Follow proper lockout/
tagout procedures to ensure power
cannot be inadvertently energized.
Failure to do so cause death or
serious injury.
CAUTION
Use copper conductors only!
Unit terminals are not designed to
accept other type conductors. Failure
to use copper conductors may cause
equipment damage.
CAUTION
Do not energize t he unit until check-
out and start-up procedures have
been completed.
52
Ethernet Cables From
Each Chiller Module
(Field Provided)
16 Port Ethernet Switch
Black
Shield
RELAY M-1
White
RELAY M-2
Black
Shield
RELAY M-3
White
Black
Shield
RELAY M-4
White
Black
RELAY M-5
Shield
White
RELAY M-6
Black
Shield
RELAY M-7
White
RELAY M-8
Shield
RELAY M-9
115V
RELAY M-10
ETHERNET
MCS I/O
TX RS-485
MCS I/O
_
GND
-
+
+
NOTES :
1.
All field provided control-circuit wiring must have a minimum rating of
150V.
2.
All field wiring must be in accordance with NEC, State & Local
requirements.
3. All field provided ethernet cables must be Cat 5 or higher ethernet straight
(patch) cables.
4.
All field provided RS-485 network cable must be 24 GA, shielded, 2-
conductor with drain wire (Belden 9841 or equivalent)
Ethernet Cable From
Wireless Router
(Factory Provided)
PANEL GROUND
Circuit Breaker
OPTIONAL:
Remote Alarm - 125 VAC Max
REQUIRED
Chill Water Pump #1 - 125 VAC Max
OPTIONAL:
Chill Water Pump #2 - 125 VAC Max
OPTIONAL:
Condenser Pump #1 - 125 VAC Max
OPTIONAL:
Condenser Pump #2 - 125 VAC Max
OPTIONAL:
Array On/Off Status - 125 VAC Max
REQUIRED
Flow Switch/Flow-Proving Device -
Input from Dry Contact Closure Only
OPTIONAL:
Remote OFF/Auto - Input from Dry
Contact Closure Only
Power Cord From
Wireless Router
(Factory Provided)
115 VAC
Neutral
:
:
CG-SVX044F-EN
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