Advertisement
humidistat
The humidistat
is designed to mount on the cold air plenum of
your furnace or on an interior wall of the home. The cold air ple-
num, however is the preferred location for sensing the average
humidity throughout
your home. Select your location and follow
the appropriate instructions.
NOTE: THE HUMIDISTAT AS SUPPLIED IS ASSEMBLED
I
FOR COLD AIR PLENUM INSTALLATION (FIG. 21).
cold air plenum mount (F g. 21)
1
Select a location that is a minimum
of 6" upstream
on cold air plenum (Fig. 22). Peel off paper backing and posi-
tion template
supplied, drill (4) 1/8" diameter
holes and cut out
center portion along solid line. Peel off backing and apply gasket
material as indicated by dashed lines.
I
CAUTION: _
install humidistat on hot air plenum.
I
I
-_ 2
Remove knob and cover from humidistat. To remove
cover, place screwdriver
blade in slot at side of humidistat
and
twist.
Position
humidistat
in opening
and fasten with 4
screws provided.
_
4
Install shaft extension.
Install cover by snapping onto
backplate.
Press knob onto shaft extension.
Connect wiring (Fig. 24). Plug 24 VAC transformer
into 120 VAC outlet.
_i
6
Peel off backing
and attach the operating
instruc-
tion label onto the cold air plenum next to the humidistat.
Run low voltage wire through the wall. Exit hole must
be within the lower backplate
opening.
(Purchase
additional
wire as required.)
5
Connect
low voltage wires from wall to previously
cut leads on humidistat
by stripping
ends and using wire nuts
(not provided).
Position and fasten humidistat
to wall with (4)
screws
provided.
Install cover by snapping
onto backplate.
Press knob onto humidistat
shaft. Make sure 1/8" air space is
maintained
between wall and backplate
to allow air circulation
and humidity sensing.
6
Connect wiring (Fig. 24). Remove electrical
discon-
nect by cutting wires on harness, strip ends and splice to low
voltage wire from wall humidistat
using wire nuts. (Wire nuts
not provided.
Purchase them from your local Sears Hardware
Store.) Plug 24 VAC transformer
into 120 VAC outlet. Do not
use existing transformer on furnace.
NOTE: Humidifier
humidifies
only when furnace
is on,
I
however, Media Wheel will turn whenever
humidistat
I
calls for humidity.
NOTE:
If the installation
is being made in the sum-
mer or when the humidity
is high, turn knob to the
test position and the humidifier should
start. When
your system is working satisfactorily,
turn knob back
to the minimum humidity setting
until winter.
NOTE: By turning knob to the test position humidifier
should start. (Do not leave on test.)
wall mount (Fig.
r i I
Remove knob and cover from humidistat.To
remove
cover, place screwdriver
blade in slot at side of humidistat
and
twist.
2
Convert
humidistat
for wall mounting
by removing
control
unit from backplate.
Reassemble
control
unit to
backplate
as illustrated
in (Fig. 23) with spacers to rear and
shaft forward. Remove electrical
disconnect
by cutting the (2)
wires. Strip ends 1/2" for splicing to wall wire.
I
NOTE: Shaft extension is not
for wall
required
mounting.
i 3
Select a location on a convenient
inside wall, usu-
ally beside your furnace thermostat.
Advertisement
