Danfoss KP 1 User manual

Installation Guide
Pressure Control
Types KP 1, KP 2, KP 5, KP 7W, KP 7B
© Danfoss A/S (AC-MCI / jmn), 2012-11 DKRCC.PI.C00.E1.22 / 520H6070 1
060R9746 060R9746
Refrigerants
Auto reset:
KP 1, KP 2, KP 5, KP 7W
Manual reset:
KP 1, KP 5, KP 7B
HCFC and non-ammable HFC
Mounting
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.
Mounting requirements Ambient temperatures
t1 min. KP 1, KP 2, KP 5: -40 °F (-40 °C)
t1 min. KP 7: -13 °F (-25 °C)
t1max.: 149 °F (65 °C)
Test pressure (Ptest)
Enclosure
max. 1/8in.
(3 mm)
B: Enclosure: ~NEMA 1A: 10 – 32 UNC Threads
CAUTION:
The mounting panel must be plane to avoid damage of control.
Connections
Ptestmax.:
KP 1, KP 2: 285 psig (20 bar pe)
KP 5, KP 7: 510 psig (35 bar pe)
KP 2: 174 psig (12 bar pe)

Bellows Bellows
2 DKRCC.PI.C00.E1.22 / 520H6070 © Danfoss A/S (AC-MCI / jmn), 2012-11
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.
Wiring
All wiring should conform
to the National Electrical Code
and local regulations.
Terminal block
CAUTION:
Use terminal screws furnished
in the contact block.
Use tightening torque 20 lb. in (2.3 Nm).
Use copper wire only.
Contact load ratings
Load Option A
CUT-OUT on pressure drop
Wire terminals 1-4:
CUT-IN = High Set Point (HSP)
see “Setting”
CUT-OUT = Low Set Point (LSP)
see “Setting”
Load Option B
CUT-OUT on pressure rise
Wire terminals 1-2:
CUT-IN = Low Set Point (LSP)
see “Setting”
CUT-OUT = High Set Point (HSP)
see “Setting”
Example:
CUT-IN = 30 psig
CUT-OUT = 10 psig
This means :
CUT-IN = HSP = 30 psig
CUT-OUT = LSP = 10 psig
Example:
CUT-IN = 250 psig
CUT-OUT = 350 psig
This means :
CUT-IN = LSP = 250 psig
CUT-OUT = HSP = 350 psig
Bellows movement
on pressure rise
The free terminal can be
used for signal purpose.
120 V a.c. 16 FLA, 96 LRA
240 V a.c. 8 FLA, 48 LRA
240 V d.c. 12 W pilot duty
Terms 1-4 close on pressure rise
Terms 1-4 open on pressure drop
Terms 1-2 close on pressure drop
Terms 1-2 open on pressure rise
Bellows movement
on pressure drop
Note:
Note:
KP 1, man. reset is possible only
after a pressure rise
of 10 psi (0.7 bar). KP 5 and KP 7B,
man. reset is possible
only after a pressure drop
of respectively 43 psi (3.0 bar)
and 58 psi (4.0 bar)
Note:
KP 1, KP 5 and KP 7B with man. reset:
Push manual reset knob during
manual tripping.
TRIP (main lever)
use FINGERS ONLY!
(Do NOT use screwdriver)
To resume control operation
after safety cutout,
push reset knob as indicated.
Adjustment spindle(s) location
Type Dierential
KP 1 10 psi (0.7 bar)
KP 5 43 psi (3 bar)
KP 7B 58 psi (4 bar)
Auto reset KP 1, KP 2, KP 5, KP 7W
Manual reset KP 1, KP 5, KP 7B
A: Range
B: Dierential
A: Range
B: Dierential
Manual trip function
(Electrical contacts / wiring test)
Manual reset

1
2
1
2
© Danfoss A/S (AC-MCI / jmn), 2012-11 DKRCC.PI.C00.E1.22 / 520H6070 3
Manual reset KP 1, KP 5, KP 7B
Setting
(see also “Wiring”)
KP 1 (auto reset), KP 2, KP 5, KP 7W, KP 7B
1. Adjust range spindle to desired HIGH SET POINT (HSP)
2. Adjust dierential spindle to desired DIFFERENTIAL (DIFF.)
1. Adjust range spindle to desired LOW SET POINT (LSP)
2. DIFFERENTIAL is xed Value printed on scale plate
HIGH SET POINT minus DIFFERENTIAL equals LOW SET POINT
Example: Example:
LOW SET POINT plus DIFFERENTIAL equals HIGH SET POINT
KP 1 (manual reset ONLY)
HSP – DIFF. = LSP
30 psig – 20 psi = 10 psig
(2.1 bar) (1.4 bar) (0.7 bar)
LSP + DIFF. = HSP
12 psig + 10 psi = 22 psig
(0.8 bar) (0.7 bar) (1.5 bar)
If terminals 1-4 are used: CUT-IN = HSP
CUT-OUT = LSP
If terminals 1-2 are used: CUT-IN = LSP
CUT-OUT = HSP
Note:
KP 5 (manual reset) and KP 7B have xed di.
Value printed on scale plate.
Adjustment
Note:
Remove lockplate before adjustment.
Replace lockplate after adjustment (if desired).
See instruction printed on top of control
KP 1: 3 psi (0.2 bar)/rev.
KP 2: 1.5 psi (0.1 bar)/rev.
KP 5: 4 psi (0.3 bar)/rev.
KP 7W: 7 psi (0.5 bar)/rev.
Range
Increase
360°
Decrease
360°
Increase
360°
Decrease
360°
6 mm
(15/64 in.)
Dierential
KP 1: 10 psi (0.7 bar)/rev.
KP 2: 7 psi (0.5 bar)/rev.
KP 5, 7W, 7B: 33 psi (2.3 bar)/rev.