Danfoss KP 15A User manual

060-007866
Installation Guide
Pressure Control
Type KP 15A
© Danfoss A/S (AC-MCI / jmn), 2012-11 DKRCI.PI.C00.C1.22 / 520H6064 1
060R9752 060R9752
Refrigerants
CAUTION:
Do not mount the control in a position where
dirt, sediment or oil will aect the operation of the control.
t1min .: -40 °F (-40 °C)
t1max.: 65 °C (149 °F)
Ambient temperatures / Mounting requirements Test pressure (Ptest)
Connections
Mounting
R717, HCFC and non-ammable HFC
Cutting ring
ptest max.
20 bar (285 psig)
PS/MWP
ptest max.
35 bar (510 psig)
PS/MWP

2 DKRCI.PI.C00.C1.22 / 520H6064 © Danfoss A/S (AC-MCI / jmn), 2012-11
CAUTION:
The mounting panel must be plane to avoid damage of control.
Enclosure
Wiring
All wiring should conform to the National
Electrical Code and local regulations.
SPDT
Controls with low pressure (LP) signal
Terminal block
Controls with low pressure (LP)
and high pressure (HP) signal)
Terminal block
CAUTION:
Use terminal screws furnished
in the contact block.
Use tightening torque 20 lb. in (2.3 Nm).
Use copper wire only.
Low pressure (LP) side:
A-C close on LP rise
A-C open on LP drop
High pressure (HP) side.
A-C open on HP rise
A-C close on HP drop
LP signal option:
A-B close on LP drop
See label for current wiring inside cover
CAUTION:
Use terminal screws furnished
in the contact block.
Use tightening torque 20 lb. in (2.3 Nm).
Use copper wire only.
Low pressure (LP) side:
A-C close on LP rise
A-C open on LP drop
High pressure (HP) side.
A-C open on HP rise
A-C close on HP drop
LP signal option:
A-B close on LP drop
HP signal option:
A-D close on HP rise
Contact load ratings
See label inside cover
= Load
= Signal option
= Bellows movement
on pressure rise
= Bellows movement
on pressure drop
Function
120 V a.c. 16 FLA, 96 LRA
240 V a.c. 8 FLA, 48 LRA
240 V d.c. 12 W pilot duty
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.
Note!
max 1/8in.
(3 mm)
B: Enclosure ~NEMA1 C: Enclosure ~NEMA2A: 8 – 32 UNC (M4)

Reset options
© Danfoss A/S (AC-MCI / jmn), 2012-11 DKRCI.PI.C00.C1.22 / 520H6064 3
LP man. LP auto. LP auto. LP man.
HP man HP man HP auto. HP auto.
Manual tripping
(Electrical contacts/wiring test)
Note:
On controls with LP and/or HP man. reset, push corresponding
LP and/or HP man. reset knob during tripping.
Trip:
use FINGERS ONLY! (Do NOT use screwdriver)
To resume control operation after safety cut-out,
push man. reset knob as indicated.
Note:
LP man. reset is possible only after system pressure
has risen above cut-in value.
HP man. reset is possible only after system pressure
has dropped below cut-out value.
Manual reset
Convertible reset
Note:
Do not select automatic reset if safety
of the system requires manual reset.
Note:
Selected reset conguration may be protected
against unauthorized actions applying a seal.
Insert a screwdriver into the slot on the lock disc and turn it
to desired reset conguration. Do not turn the screw on the
lock disc as it may damage the convertible reset mechanism.
LP side HP side
Adjustment spindle(s) location
Use screw
driver only

111
2
2
2
4 DKRCI.PI.C00.C1.22 / 520H6064 © Danfoss A/S (AC-MCI / jmn), 2012-11
Adjustment
Note:
Remove lockplate before adjustment.
Replace lockplate after adjustment (if desired).
1. Adjust range spindle
to desired CUT-IN value.
2. Adjust dierential spindle to desired
DIFFERENTIAL (DIFF.) value.
CUT-IN minus DIFFERENTIAL
equals CUT-OUT
Example: Example: Example:
CUT-IN equals CUT-OUT plus
DIFFERENTIAL
CUT-OUT minus DIFFERENTIAL
equals CUT-IN
1. Adjust range spindle
to desired CUT-IN value.
2. DIFFRENTIAL (DIFF.) is xed.
Value printed on scale plate.
1. Adjust range spindle
to desired CUT-OUT value.
2. DIFFRENTIAL (DIFF.) is xed.
Value printed on scale plate.
CUT-IN – DIFF. = CUT-OUT
30 psig – 10 psi = 20 psig
(2.1 bar) (0.7 bar) (1.4 bar)
CUT-OUT + DIFF. = CUT-IN
12 psig + 10 psi = 22 psig
(0.8 bar) (0.7 bar) (1.5 bar)
CUT-OUT – DIFF. = CUT-IN
203 psig – 58 psi = 145 psig
(14 bar) (4 bar) (10 bar)
LP range LP dierential
HP range
Increase
360°
Decrease
360°
Increase
360°
Decrease
360°
Decrease
360°
Increase
360°
10 psi
(0.7 bar)
/rev.
2 psi
(0.15 bar)
/rev.
33 psi
(2.3 bar)
/rev.
15/64 in.
(6 mm)
Low pressure (LP) side setting High pressure (HP) side setting
Setting
KP 15A with LP auto. reset only KP 15 A with HP auto./man. reset
KP 15A with LP man. reset only
KP 15A with convertible LP auto./man. reset
LP scale LP scale HP scale
Lockplate