WattMaster MG331-21-VAVCAV - Manual (Page 39)

Form: WMS-OE265-06-Humidistat-1A.doc
Page 1 of 1
VAV System
Description
The OE265-06 Wall Mounted Humidistat
is used with the WMVAV controller to initi-
ate dehumidification mode when the rela-
tive humidity rises above the user adjust-
able setpoint.
The Wall Mounted Humidistat is adjustable
for relative humidity between 10% to 90%
with a differential relative humidity of 5%.
The electrical switch on the Humidstat is a
snap-acting SPDT type. The switch is rated
at 8 Amps resistive load and 60 VA pilot
duty load at 24 VAC.
The Humidistat is enclosed in an attractive
beige plastic housing with a removable
cover. The cover face is of brushed bronze
with relative humidity markings indicating
relative humidity setpoints between 10% to
90%. A removable dial is provided for the
adjustment of the relative humidity set-
point. The Humidistat is also provided with
a blank cover plate to facilitate tamper
proof installations. The external setpoint
cover plate is first removed and then the
blank cover plate is installed. An Allen
screw and 5/64” Allen wrench is also pro-
vided to complete the tamper proof hard-
ware..
Six inch long color coded leads are pro-
vided on the back of the Humidistat base
for wiring connections. A green grounding lead is provided for grounding requirements.
Mounting
The Humidistat can be mounted to a electrical handy box using the provided screws. It can also be mounted di-
rectly to the wall if your wiring codes allow for mounting of 24 Volt devices without a handy box. Mounting screws
for direct wall mounting must be provided by others.
Technical Data
OE265-06 Wall Mounted Humidistat
Humidity Sensing
Element Nylon Ribbon Electrical Switch Snap acting SPDT Rated at 8 Amps
Resistive Load. 60 VA Pilot Duty Load
Control Dial Settings 10 to 90% RH Location NEMA 1 Indoor Locations Only
Differential 5% RH Housing Beige Plastic with Brushed Bronze Cover
Plate. Also includes Tamper Proof Cover
Plate and Tamper Resistant Hardware
Operating Humidity 5% to 95% RH Non-
condensing
Connections 6” Long Color Coded Wire Leads with
Ground Wire
Operating Temp 40
°F to 125°F Weight 1 Lb.
Three Year Warranty WattMaster reserves the right to change specifications without notice
OE265-06 – Wall Mounted
Humidistat
20 40 60 80
4.38”
2.88" 1.63”
3.31”
Mounting Holes
In Humidistat Base
% Relative Humidity