User Guide

- 4 -
Circulation pump
Circulation pump
Flow control valve
Flow control valve
Check valve
Check
value
For connection to
Pump 1, see 1)
←
M
A
X
Circulation Pump
100W
1
2
Operation
Relay
Operation
Relay
Fan
Fan
Pump
1
Pump
Pump
2
Pump
Warning
Light
Warning
Light
Single phase AC120V or
Three phase AC240V pump voltage etc.
Relay
Thermal Relay
AC Power Supply
AC100-240V
Under 100W
M
A
X
Circulation Pump
100W
Single phase AC120V or
Three phase AC240V pump voltage etc.
1
2
Warning
Light
Warning
Light
Operation
Relay
Operation
Relay
Fan
Fan
Pump
1
Pump
Pump
2
Pump
Relay
Thermal Relay
AC Power Supply
AC100-240V
Under 100W
Adjust the pump fl ow with the fl ow control
valves.
If multiple pumps are used, control the fl ow of
each pump with separate valves.
Circulation Pump Terminals
When operating with 1 circulation pump(1)
*If there is only one pump, connect to "Pump 1" terminals.
If two circulating pumps will be used:(2)
Connect as below if two circulating pumps will be used. The two pumps can be set to alternate
with a dipswitch change. (Refer to the "Dipswitch Settings" section.)
*Do not connect both Pump 1 and Pump 2 to the same terminal block.
* After connecting as shown above, set dipswitch 3 to "OFF".
(Refer to the "Dipswitch Settings" section.)
Piping diagram for parallel pipe installation•
Use these terminals to control the pump in any circulating system.•
Connected this way, the system controller will control the function of the pump.
Use a normally open relay to supply power to the pump. Use a thermal relay if necessary.•