Installation guide
Pressure switch
Type KP 21
© Danfoss A/S (AC-MCI / jmn), 2013-11
IC.PI.P10.G3.02 / 520B5881
1
06
0R
94
10
06
0R
94
10
Ambient temperatures
Caution: Do not mount a switch in a position where
dirt, sediment or oil will affect the operation of the switch.
Enclosure
CAUTION: The mounting panel must be plane to avoid damage of switch.
Low pressure (LP) side setting
CUT-IN minus DIFFERENTIAL equals CUT-OUT
Test pressure (p
test
)
High pressure (HP) side setting
CUT-OUT minus DIFFERENTIAL equals CUT-IN
P
test
max.
20 bar P
e
P
test
max.
20 bar P
e
LP
HP
1. Adjust range spindle to
desired CUT-IN value
2. Adjust differential
spindle to desired
DIFFERENTIAL
(DIFF.) value
LP
scale
1. Adjust range spindle to
desired CUT-OUT value.
2. DIFFERENTIAL (DIFF.)
is fixed.
Value printed on scale plate.
t
l
min.
−40°C (−40°F)
−25ºC (−13ºF)
t
l
max
65ºC (150ºF)
HP
scale
