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 fingers 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
Differential
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:
Differential
A:
Range
B:
Differential
Manual trip function
(Electrical contacts / wiring test)
Manual reset
