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Model: FCA 301 EC/NC (Single)
High pressure switch
Low pressure switch, cooling
Overload protection
Main switch
W
ater flow switch
Symbol
Description
Symbol
Description
Compressor
Fan motor
Power indicator
Contactor
Phase protector
Fuse
T
imer
Timer setting
FCA301EC FCA301NC
8S
8S
Circuit 2 condenser temperature sensor
Circuit 1 condenser temperature sensor
Outdoor ambient temperature sensor Chiller entering water temperature sensor Chiller leaving water temperature sensor
Remove ON/OFF
External interlock
Operation
indicator
External
alarm
Transformer
GND
12V
A
B
Discharge temperature switch
Last module close
Jumper setting
FCA301EC FCA301NC
Overload protection setting
DIP
switch setting
DIP
S2
FCA301EC FCA301NC
S2.5
S2.6
S2.7
S2.8
DIP
switch setting
DIP
S2
S2.5
S2.6
S2.7
S2.8
DIP
switch setting
DIP
S2
S2.5
S2.6
S2.7
S2.8
1. Field wiring; Factory wiring. 2. Communication bus (A&B) wire must > 0.25 mm
2
, A
& B must be same polarity
.
3. Communication bus must alway from power cable. 4. Unit address NO.1 (S1.1 - S1.4 OFF) is reserved for Master only
.
5. For individual control (single unit), jumper JP1 CLOSE. 6. For single unit, insert the
TH5 &
TH6 sensor
into water inlet and outlet of the heat exchanger
.
NOTE:
