Danfoss KP 44 Installation guide
Installation guide
Dual pressure switch
Type KP 44
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Ambient temperatures |
Test pressure (p test) |
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Control |
Safety |
Ptest max.
19 bar Pe(275 psig)
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Ptest max. |
t1 min. |
-40 °C (-40 |
°F) |
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25 bar Pe(362 psig) |
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t1 max. |
65 °C (150 |
°F) |
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Caution: Do not mount the control in a position |
Control PS/MWP |
17 bar Pe (245 psig) |
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where dirt, sediment or oil will affect the operatio |
Safety PS/MWP |
17 bar Pe (245 psig) |
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of the control. |
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Connections
1. Lefthand pressure setting spindle
2. Differential setting spindle
3. Main arm
4. Righthand pressure setting spindle
5. Main spring
6. Differential 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 |
Mounting |
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Caution: The mounting panel must be plane to avoid damage of control.
© Danfoss A/S (AC-MCI /jmn), 2014-01 |
DKRCC.PI.CD0.B2.02 / 520H8364 |
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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 fingers or with any tool.
Electrical connections |
When used acc. to UL regulations |
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Electrical ratings
AC 1: 16 A |
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AC 3: 16 A |
400 V |
AC 15: 10 A |
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DC 13: 12 W |
220 V |
Listed refrigeration controller 61B5
Voltage |
FL |
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LR |
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Resist. |
Pilot |
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AC |
DC |
A |
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A |
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load |
duty |
240 |
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8 |
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48 |
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8 A |
3 A |
120 |
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16 |
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96 |
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16 A |
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240 |
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12 W |
Use copper |
wire only |
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Tightening torque 20 lb.in. |
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Setting
CONTROL side setting
1.Adjust range spindle to
desired CUT-IN value 
2.Adjust differential spindle to desired DIFFERENTIAL (DIFF.) value
CUT-IN equals CUT-OUT minus
DIFFERENTIAL
Example:
CUT-OUT– DIFF. = CUT-IN
8 bar (116 psi) – 2 bar (29 psi) = 6 bar (87 psi)
SAFETY side setting
1.Adjust range spindle to desired CUT-OUT value.
2.DIFFERENTIAL (DIFF.) is fixed. Value printed
on scale plate. 
CUT-IN equals CUT-OUT plus
DIFFERENTIAL
Example:
CUT-OUT + DIFF. = CUT-IN
4 bar (58 psi) + 1 bar (15 psi) = 5 bar (73 psi)
Adjustment
Control side setting |
Control side differential |
Safety side setting
Note:
Remove lockplate before adjustment
Replace lockplate after adjustment (if desired).
2 |
DKRCC.PI.CD0.B2.02 / 520H8364 |
© Danfoss A/S (AC-MCI /jmn), 2014-01 |
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