Danfoss KP 15 User manual

Pressure Controls
KP 15, KP 17W, KP 17B, KP 25
©Danfoss A/S RI5AK222 - 520H0146
060R9747
060R9747
Instructions
Types
The controls can be used with CFC, HFC, HCFC refrigerants.
CAUTION: Do not install these controls on
ammonia systems
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
Ambient temperatures Test pressure (pTEST)
ptest max.
505 psig
(35 bar pe)
ptest max.
285 psig
(20 bar pe)
t1min. KP 15, KP 25: –40°F (–40°C)
KP 17W, KP 17B: –13°F (–25°C)
t1max. 150°F (65°C)
CAUTION: Do not mount the control in a position where dirt, sediment,
or oil will affect the operation of the control.
Enclosure
CAUTION: The mounting panel must be plane to avoid damage of control.

2 RI5AK222 - 520H0146
Connections
Wiring
CAUTION: Disconnect power supply before
wiring connections are made to avoid possible
electrical shock or damage to equipment.
All wiring should conform to the National
Electrical Code and local regulations.
SPDT
Controls with low pressure (LP) 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
Controls with low pressure (LP) and high
pressure (HP) signal)
KP 15 and KP 17W. Only code nos.:
060-2024060-2027 060-2030
060-2026060-2029 060-2031
(stamped on top of control)
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
HP signal option:
A-D close on HP rise
Contact load ratings
See label inside cover
Function
Note!
M= Load
x= Signal option
= Bellows movement on pressure rise
¬ = Bellows movement on pressure
drop
120 V a.c. 16 FLA, 96 LRA
240 V a.c. 8 FLA, 48 LRA
240 V d.c. 12 W pilot duty

RI5AK222 - 520H0146 3
Manual tripping
(Electrical contacts/wiring test)
LP side HP side
TRIP
use FINGERS
ONLY!
(Do NOT use
screwdriver)
Note:
On controls with LP and/or HP man. reset, push
corresponding LP and/or HP man. reset knob during
tripping.
Manual tripping
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.
Convertible reset
KP 15, code nos.: 060-2025, 060-2028
Reset options
Turn plate to desired LP man. LP-auto. LP-auto. LP-man.
reset configuration HP-man. HP-man. HP-auto. HP-auto.
Adjustment spindle(s) location
KP 15 KP 15, KP 17B KP 15, KP 17W, KP 25
A. MAN./MAN. RESET B. AUTO/MAN. RESET C. AUTO./AUTO. RESET

4 RI5AK222 - 520H0146
©Danfoss A/S IC-MC/mr 02-2005
Setting
Low pressure (LP) side setting High pressure (HP) side setting
KP 15, KP 17W, KP 17B and KP 25 KP 15 with LP man. reset only KP 15, KP 17W, KP 17B and KP 25
with LP auto. reset only KP 15 with convertible LP auto.) with HP auto. or man. reset
man. reset
LP LP
scale scale
1. Adjust range spindle to 1. Adjust range spindle to 1. Adjust range spindle to
desired CUT-IN value. desired CUT-OUT value. desired CUT-OUT value.
2. Adjust differential 2. DIFFRENTIAL (DIFF.) 2. DIFFERENTIAL (DIFF.)
spindle to desired is fixed. is fixed.
DIFFERENTIAL Value printed on Value printed on
(DIFF.) value. scale plate. scale plate.
CUT-IN minus DIFFERENTIAL equals CUT-IN equals CUT-OUT plus CUT-OUT minus DIFFERENTIAL equals
CUT-OUT DIFFERENTIAL CUT-IN
Example: Example: Example:
CUT-IN – DIFF. = CUT-OUT CUT-OUT + DIFF. = CUT-IN CUT-OUT – DIFF. = CUT-IN
30 psig – 10 psi = 20 psig 12 psig + 10 psi = 22 psig 203 psig – 58 psi = 145 psig
(2.1 bar) (0.7 bar) (1.4 bar) (0.8 bar) (0.7 bar) (1.5 bar) (14 bar) (4 bar) (10 bar)
Adjustment
Note:
Remove lockplate before adjustment.
Replace lockplate after adjustment (if desired).
KP 15:
10 psi (0.7 bar)/rev
KP 25:
7 psi (0.5 bar)/rev
KP 15:
2 psi (0.15 bar)/rev
KP 25:
1.5 psi (0.1 bar)/rev