Danfoss KP 15 User manual

max ⁄in
(3 mm)
A: 10 – 32 UNC
Threads (4 holes) B: Enclosure ~NEMA1
ptest max.
510 psig (35 bar pe)
ptest max.
285 psig (20 bar pe)
Installation guide
Pressure switch
KP 15, KP 17W, KP 17B, KP 25
060R9747 060R9747
© Danfoss | DCS (jmn) | 2016.10 DKRCC.PI.CA0.B3.22 | 520H11520 | 1
t1min.: -40 °F (-40 °C)
-13 °F (-25 °C) (PED approved products)
t1max.: 149 °F (65 °C)
Ambient temperatures / Mounting requirements
KP 15
man. (LP) / man. (HP) reset
KP 15, KP 17B
auto. (LP) / man. (HP) reset
KP 15, KP 17W, KP 25
auto. (LP) / auto (HP) reset
Enclosure
CAUTION:
The mounting panel must be plane to avoid damage of control.
CAUTION:
Do not mount the control in a position where dirt,
sediment, or oil will aect the operation of the control.
CAUTION:
Do not install these controls on ammonia systems.
Refrigerants:
R22, R134a, R404A, R407A, R407C, R407F, R422B, R422D,
R448A, R449A, R450A, R452A, R507A, R513A
For complete list of approved refrigerants, go to http://products.danfoss.com/all-products/
Test pressure (Ptest)

Connections Assembly
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
Function
Contact load ratings
See label inside cover
120 V AC 16 FLA, 96 LRA
240 V AC 8 FLA, 48 LRA
240 V DC 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.
= Load
= Signal option
= Bellows movement
on pressure rise
= Bellows movement
on pressure drop
Note!
© Danfoss | DCS (jmn) | 2016.10
2 | 520H11520 | DKRCC.PI.CA0.B3.22

© Danfoss | DCS (jmn) | 2016.10 DKRCC.PI.CA0.B3.22 | 520H11520 | 3
KP 15
A. MAN./MAN. RESET
KP 15, KP 17B
B. AUTO/MAN. RESET
KP 15, KP 17W, KP 25
C. AUTO./AUTO. RESET
Reset options
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
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.
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.
LP side HP side
Adjustment spindle(s) location
Use screw
driver only

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:
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)
Example:
CUT-OUT– DIFF. = CUT-IN
203 psig – 58 psi = 145 psig
(14 bar) (4 bar) (10 bar)
Low pressure (LP) side setting High pressure (HP) side setting
Setting
KP 15, KP 17W, KP 17B and KP 25
with LP auto. reset only
KP 15, KP 17W, KP 17B and KP 25
with HP auto. or man. reset
KP 15A with LP man. reset only
KP 15A with convertible LP auto.
man. reset
1
2
LP scale
1
2
LP scale
1
2
HP scale
KP 15:
10 psi (0.7 bar)/rev
KP 25:
7 psi (0.5 bar)/rev
LP range
LP dierential
HP range
Increase
360°
Decrease
360°
Increase
360°
Decrease
360°
Decrease
360°
Increase
360°
KP 15:
2 psi (0.15 bar)/rev
KP 25:
1.5 psi (0.1 bar)/rev
KP 15:
33.5 psi (2.3 bar)/rev
⁄ in
(6 mm)
Lockplate
© Danfoss | DCS (jmn) | 2016.10
4 | 520H11520 | DKRCC.PI.CA0.B3.22