APPLICATION
The HCD international gas and air pressure switch can be
used in positive pressure or differential pressure systems to
indicate changes in pressure relative to a setpoint.
FEATURES
Switch position indicator.
Can be used in positive pressure or differential
pressure applications.
Setpoint and switch position indicators visible from
outside.
All models incorporate a single-pole, double-throw
snap-acting microswitch.
SPECIFICATIONS
Model
HCD gas/air pressure switch.
Ambient temperature
Minimum: -10 °C
Maximum: +70 °C
Connection
High-pressure connection: 1/4" ISO 7/1 female tapping.
Low-pressure or vent connection: 1/8" ISO 7/1 female
tapping.
High pressure tapping connection: 9 mm.
Electrical rating
Voltage: 230 / 250 Vac
Full load: 2.0 A
Locked motor: 12.0 A
Resistive: 10.0 A
Enclosure
IP 40
U.S Registered Trademark
Copyright © 2014 Honeywell Inc. All Rights Reserved
GAS / AIR PRESSURE SWITCH
INSTALLATION INSTRUCTIONS
Maximum Pressure
scale range
order no.
(mbar)
HCD6003
0.2 – 3
HCD6010
1 – 10
HCD6050
5 – 50
HCD6150
15 - 150
Pressure Rating
differential
scale
order no.
range
low scale
(mbar)
HCD6003
0.2 – 3*
0.3
HCD6010
1 – 10
0.5
HCD6050
5 – 50
1.2
HCD6150
15 - 150
3.5
*differential is additive
Accessories
Mounting bracket, order number
INSTALLATION
WARNING
Risk of electric shock or equipment damage!
Installer must be trained, experienced service personnel.
►
Disconnect power supply before beginning installation.
►
Perform all required checkout tests after installation is
►
complete.
Connection
The bleed fitting is tapped 1/8" ISO 7/1 female.
In differential pressure control applications, the lower
pressure should be connected to the vent fitting (see Fig. 1).
In applications using combustible gases, the vent tapping
should be connected to the combustion chamber.
Mounting
The HCD has a hexagonal fitting tapped 1/4" ISO 7/1 (wrench
width: 19 mm) female, which is the high-pressure connection
in differential applications. The HCD can be mounted up to
90° from the horizontal position.
HCD
max. pressure (mbar)
w/o loss of
w/o device
accuracy
failure
100
200
100
200
200
400
300
600
sensed
auto
high
media
recycling
scale
air & com-
0.5
bustion
products
1
air & com-
YES
bustion
2.5
products,
combus-
10
tible gas
45.002.208-001
MU1B-0573GE51 R0714A