8
[Fig. 8.1.1]
F
C
A
G
D
Heat source unit sample installation
8
[Fig. 8.4.1]
TB8
3
A
4
[Fig. 8.4.2]
A
TB8
1
2
3
4
TM1
A
TB8
1
2
3
4
TM2
8
Terminal No.
TB8-1, 2
Output
Relay contacts output
Operation
• When Dip switch 2-7 is OFF.
The relay closes during compressor operation.
• When DIP switch 2-7 is ON.
The relay closes during reception of cooling or the heating operation signal from the controller.
(Note: It outputs even if the thermostat is OFF (when the compressor is not operating).)
B
A : Main circulating water pipe
D : Water outlet (lower)
G : Water inlet (upper)
E
H
A : Short-circuit wire (Connected before delivery from manufacturer)
63PW
B : Pump interlock circuit connection
B
L1
B
52P
TM1
TM2
MP
C
Rated voltage: 3~ 208/230V
Rated load: 1A
8.1
B : Shutoff valve
E : Refrigerant pipes
H : Drain pipe
8.4
L2
~ 208/230V
MCB
52P
A : Heat source unit
B : Control panel (field-supplied)
C : To next heat source unit
8.4
C : Shutoff valve
F : Y-type strainer
3