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B
C
A
D
C
D
A
B
© Danfoss | DCS (sb) | 2019.12
AN212086434305en-000101 | 520H11543 | 3
Contact function test (Manual trip)
When the electrical leads are connected the contact function
can be manually tested regardless of pressure condition in
the system. The manual trip lever is located in the left side
of the KPU. It must be operated with fingers only. Do not use
screwdriver as it will damage the switch.
NOTE:
While operating the manual trip on KPU
switches with manual reset it is necessary
to push the reset knob.
NOTE:
Adjust the pressure switch with settings specified by the
manufacturer of the controlled quipment.
Do not exceed the pressure ratings of the controlled
equipment or any of its components when checking
pressure switch operation or operating the controlled
equipment.
Do not adjust pointers beyond the highest or lowest
indicator marks on the scale plate, as this may cause
inaccurate switch operation.
A:
Manual trip. Press the lever up. USE FINGERS ONLY!
B:
Manual reset button
(available only for contols with manual reset function)
C:
Terminal block
D:
Grounding screw
A:
Differential adjusting screw
B:
Locking plate
C:
Range adjusting screw
D:
Cover screw
Adjustment
Before adjustment, loosen the locking plate.
For setting use the Universal Refrigeration Wrench.
Wire dimensions: 10 AWG max.
Cable entry:
7
/
8
in. cable entry for ½ in. male pipe thread
connection (conduit boss) or similar (Pg13.5 or Pg16) screwed
cable entry.
Wiring Option A:
– Low Pressure Switch Cut Out on pressure fall
– Condenser Fan Cycling
Wiring Option B:
– High Pressure Switch Cut Out on pressure rise
Load
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