Danfoss KP 44 User manual

Ptest max.
19 bar Pe
Ptest max.
25 bar Pe
(275 psig)
(362 psig)
Installation guide
Dual pressure switch
Type KP 44
© Danfoss A/S (AC-MCI /jmn), 2014-01 DKRCC.PI.CD0.B2.02 / 520H8364 1
060R9766 060R9766
Ambient temperatures
t1min. -40 °C (-40 °F)
t1max. 65 °C (150 °F)
Caution: Do not mount the control in a position
where dirt, sediment or oil will aect the operatio
of the control.
Test pressure (p test)
Control Safety
Control PS/MWP 17 bar Pe(245 psig)
Safety PS/MWP 17 bar Pe(245 psig)
Connections
1. Lefthand pressure setting spindle
2. Dierential setting spindle
3. Main arm
4. Righthand pressure setting spindle
5. Main spring
6. Dierential spring
7. Bellows
8. Pressure connections
9. Contact system
10. Terminal
11. Earth terminal
12. Cable entry
13. Tumbler
14. Locking plate
15. Impulse lever
The switch in the KP has a snap-action function and the
bellows moves only when the cut-in or cut-out value is
reached.
Enclosure
Caution: The mounting panel must be plane
to avoid damage of control.
Mounting

1. Adjust range spindle to
desired CUT-IN value
2. Adjust dierential
spindle to desired
DIFFERENTIAL (DIFF.)
value
1. Adjust range
spindle to desired
CUT-OUT value.
2. DIFFERENTIAL (DIFF.)
is xed. Value printed
on scale plate.
2 DKRCC.PI.CD0.B2.02 / 520H8364 © Danfoss A/S (AC-MCI /jmn), 2014-01
Caution:
Disconnect power supply before wiring connections are made or service to avoid possible electrical shock or
damage to equipment. Do never touch live parts with your ngers or with any tool.
Electrical connections
Setting
CONTROL side setting SAFETY side setting
CUT-IN equals CUT-OUT minus CUT-IN equals CUT-OUT plus
DIFFERENTIAL DIFFERENTIAL
Example: Example:
CUT-OUT– DIFF. = CUT-IN CUT-OUT + DIFF. = CUT-IN
8 bar (116 psi) – 2 bar (29 psi) = 6 bar (87 psi) 4 bar (58 psi) + 1 bar (15 psi) = 5 bar (73 psi)
Adjustment
Control side setting Control side dierential
Safety side setting
Note:
Remove lockplate before adjustment
Replace lockplate after adjustment (if desired).
When used acc. to UL regulations
Listed refrigeration
controller 61B5
Voltage FL
A
LR
A
Resist.
load
Pilot
duty
AC DC
240
120
848 8 A 3 A
16 96 16 A
240 12 W
Use copper wire only
Tightening torque 20 lb.in.
AC 1: 16 A
400 V
AC 3: 16 A
AC 15: 10 A
DC 13: 12 W 220 V
Electrical ratings