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DUCT HUMIDISTAT, ON-OFF CONTROL
This duct mounted humidistat is installed in the return air duct to
sense the humidity level in the area being served. Scale range is
10-60% RH. Differential is 4-6% non-adjustable.
The control should be located in the duct where it will be
affected by normal air flow. The control can be mounted in any
position but should be located on the side of the duct when
possible to make the setpoint adjustment easily accessible.
MOUNTING
HOLES - 2
SETPOINT
ADJUSTMENT
PUSH SCREWDRIVER
IN AND HOLD
PUSH IN
RELEASE - 3
WIRE TO
HUMIDIFIER TERMINAL
2 OR 4
WIRE TO
HUMIDIFIER
TERMINAL 2 OR 4
PUSH IN
TERMINAL - 3
PUSH TO
RELEASE
COM.
DUCT HUMIDISTAT, PROPORTIONAL CONTROL
The Model HXHAN is an intelligent humidistat solution used
exclusively for duct mounted installations. The humidistat
is capable of providing both humidity and temperature
measurements from inside the duct. The microprocessor control
takes the temperature into consideration when calculating the
humidity to provide an extra degree of precision.
Snap-on
plastic
cover
Aluminum housing
DUCT
Allen screws
Use Allen wrench
to unlock cover
Remove any excess insulation from the duct that would prevent
the probe from extending a minimum of 4” (106mm) into the air
stream.
Make a 1-1/2” (38mm) hole in the duct for inserting the probe.
Use a gasket, sealer, or other means to seal the area between the
unit and the duct to ensure proper operation.
WHEN USED TO CONTROL ROOM RELATIVE HUMIDITY
WHEN USED AS HIGH LIMIT HUMIDISTAT
Model HXHAB
Model HXHAN
