1-11
IM-FCU-0999
ELECTRICAL WIRING CONNECTION
NOTE:
This is a proposed wiring connection. It may change subject to the chiller unit and must comply with the local and national
code and regulations.
CC10BW~CC40BW
FCU
FCUFCU
Gate Valve
Gate Valve
Three Way Valve
Good Controlling
Bad Controlling Worst Controlling
Gate Valve
Gate Valve
Two Way Valve
Gate Valve
Gate Valve
Chiller
CK20AW~CK50AW
CE20DW~CE40DW
WATER PIPING CONNECTION
The indoor unit is equipped with water outlet and inlet bare connection. There is an air-vent for air purging that is fitted at the
outlet water header.
3 ways solenoid valve is required for cycling off or bypass the chilled water.
Black steel pipe, polyethrene pipe, PVC pipe and copper tube are recommended in field installation.
All types of piping and connection must be insulated by polyurethane (ARMAFLEX type or equivalent) to avoid condensation.
Do not use contaminated or damaged pipe and fitting for installation.
Some main fitting components are needed in the system to enhance the capacity and ease of service, such as gate valve,
balancing valve, 2 ways or 3 ways solenoid valve, filter, strainer etc.
COMP L N
FCU 1
3wv
x1, x2, x3
Solenoid Valve for 3 way valve
Relay (220-240V, 10A)
COMP L N
FCU 2
COMP L N
FCU 3
3wv
x1
Chiller
3wv
x2
3wv
x3
R
S
T
N
FL FM FH SH TH L N
FL FM FH SH TH L N
FL FM FH SH TH L N
FCU 1 FCU 2 FCU 3
TH
3wv
Chiller
x1
TH
3wv
TH
3wv
R
S
T
N
x2
x3
3wv
x1, x2, x3
TH
Solenoid Valve for 3 way valve
Relay (220-240V, 10A)
Thermostat
IM-FCU-0999L (Eng) 7/14/00, 1:18 PM11
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