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ENGLISH
Installation Manual 71
HR Unit PCB
n After operating the dip switch to set the additional function, you must reset the power of the main PCB to
reflect the changed function. (After recovering the dip switch to cancel the additional function, you must
reset the power of the main PCB to reflect the change.)
n If the dip switch is not set accurately, it can have excessive load on the product operation.
Set the dip switch properly.
Function SW01B Setting SW02B Setting Remark
Standard mode at shipping
factory
longest Pipe
Length
Forced Oil Return
1234567
ON
1234567
ON
1234567
ON
1234567
ON
For water pipe Solenoid
Valve 208/230V power
Use this mode when tem-
perature of circulation inlet
water is under 10°C (50°F)
(You should use an anti
freeze)
You should install the vari-
able water flow valve con-
trol kit before using this
mode.
Vacuum Mode
Water Pipe
Solenoid Valve
208/230V
Functions
Ground source
mode
Variable water
Flow Control
Mode
1234567
ON
1234567
ON
1234567
ON
1234567
ON
1234567
ON
1234567
ON
1234567
ON
1234567
ON
Dry contact
Mode
1234567
ON
1234567
ON
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