Bryant HUM-56-1 - Manual (Page 10)

VIII. INSTALL HUMIDISTAT AND COMPLETE WIRING
1. Mount humidistat on inside wall or return-air duct in
accordance with section INSTALLATION OF HUMIDIS-
TAT on page 10.
NOTE: Wiring must comply with national electrical code and any
local codes or ordinances that may apply. (See Fig. 17.)
IX. START-UP
1. Open saddle valve to permit water to flow to the solenoid
valve.
2. Check all connections for water leaks.
3. Set thermostat to call for heat. Set humidistat at highest
humidity setting to be sure the contacts are closed. After a
few minutes of operation, check the drain connection for
leaks and to see if water is flowing through humidifier.
4. Reverse thermostat and humidistat settings to insure proper
shutdown.
5. Reset thermostat to normal setting. Reset humidistat to
recommended setting.
X. FINAL STEPS
Attach humidifier maintenance instruction sticker to a visible
location.
1. Inform homeowner of proper operation, maintenance, and
humidistat setting.
a. If unit is installed during cooling season, close bypass
damper, set humidistat for summer setting (OFF or
lowest setting).
b. If installed during heating season, set unit for normal
operation.
INSTALLATION OF HUMIDISTAT
The humidistat provides automatic control of humidifiers in
central heating systems. It is designed for low voltage, wall, or
surface duct mounting and contains a SPST snap-acting dustproof
switch.
CAUTION: Disconnect power supply before making
wiring connections to prevent possible electrical shock
and equipment damage. Make wiring connections in
accordance with Installation Instruction supplied with the
humidifier.
1. Installer must be a trained, experienced service person.
2. Disconnect power supply before beginning installation.
3. Conduct a thorough checkout before leaving installation.
I. WALL MOUNTING (LOW VOLTAGE)
1. Choose a location for humidistat about 5 ft above floor on
inside wall with average room temperature and relative
humidity conditions. Maximum ambient temperature of
selected location must not exceed 125°F. Humidistat may
be mounted directly on wall.
2. Drill a small hole in wall and run low-voltage wiring to
location chosen. Pull about 6 in. of wire through hole. Plug
opening to prevent drafts from affecting humidistat opera-
tion.
3. Remove knob, faceplate, and switch assembly from case by
following steps listed below.
a. Remove knob by pulling away from casing. (See Fig.
18.)
b. Lift off faceplate, starting at right side. Left end of
faceplate protrudes under lip of casing. (See Fig. 18.)
c. Remove switch by removing 2 screws in back of casing.
Pressing tab on case. Lift out control. (See Fig. 19.)
4. Make connections to screw terminals on switch assembly.
Re-install switch into casing — secure with 2 short screws.
5. Mount case horizontally over wires directly to wall using 2
long screws provided.
6. Replace faceplate and knob.
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Fig. 15—Valve and Media Assembly for HUMBBWTR2019-A--
A98370
PIN FLOAT
ARM
GASKET
RETAINER
BEARING
VALVE SEAT
SUPPORT
BRACKET
(LEFT HAND INSTALLATION SHOWN) FLOAT VALVE ASSEMBLY REINSTALLING MEDIA ASSEMBLY
VALVE BODY
WASHER
1 ⁄ 4 IN. BLUNT
POINT SCREW
1 ⁄ 2 IN. LONG
SCREW
Fig.17—Humidistat Installation for HUMBBWTR2019-A--
A96014
MOTOR
HUMIDISTAT
115V
FIELD
WIRING
TRANSFORMER
(10-VA)
24V
MOTOR
HUMIDISTAT
24VAC
FURNACE
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