GeneralAire 1137 User Manual
Fresh Indoor Air Quality
INSTALLER: PLEASE FILL OUT AND MAIL GUARANT EE C AR D AFTER INSTALLATION
IS COMPLETE. LEAVE INSTALLAT IO N IN ST RUCTIONS WITH HOME OWNER
PRECAUTION: The installer should be an experienced service technician. Disconnect electrical power before
beginning installation. Do not install where temperatures fall below 32 degrees F or where plenum temperatures
exceed 200 degrees F. For maximum evaporative capacity, install this humidifier on the warm air supply plenum.
When wiring into a multi-speed blower circuit see Step 6C & 6D.
ADDITIONAL MATERIALS THAT MAY BE NECESSARY:
1
ALLOW 2 1/2 INCHES CLEARANCE
ABOVE THIS SURFACE FOR SERVICING
Top Of Template
TEMPLATE FOR INSTALLING
POWER HUMIDIFIER
FOLLOW INSTRUCTIONS PACKED WITH HUMIDIFIER
1. REMOVE PROTECTIVE PAPER FROM BACK OF TEMPLATE AND STICK IN LEVEL POSITION.
2. CENTER PUNCH AND DRILL THE FOUR SIDE MOUNTING HOLES WITH A 1/8 " DIA. DRILL.
3. HANG HUMIDIFIER FROM FOUR SIDE SCREWS AND INSTALL DRAIN PAN, EVAPORATOR
PAD AND DISTRIBUTOR TROUGH.
WHEN INSTALLING ON BASEMENT TYPE FURNACE, EXTEND THIS LINE
FOR LOCATING HOLE ON ADJACENT PLENUM
4. TIGHTEN SCREWS AND ADJUST HUMIDIFIER UNTIL LEVEL.
5. REMARK FOUR REMAINING HOLES IF NECESSARY.
6. REMOVE HUMIDIFIER, DRILL REMAINING HOLES AND CUT OUT CENTER SECTION OF
TEMPLATE.
CUT ON THIS LINE
IF FURNACE JACKET EXTENDS MORE THAN 3" OUTWARD FROM THE PLENUM SURFACE
ALLOW 4" CLEARANCE BELOW THIS LINE FOR EASY ACCESS TO DRAIN HOSE CONNECTION.
TEMPLATE NO. 1137
1. 1/4" diameter plastic supply tubing or 1/4" copper supply tubing for hot water applications
2. air pressure switch (G.F. Model #12500 suggested)
3. current sensing relay (G.F. Model #GA50 suggested)
4. junction box, 115 V. grounding outlet, cover and wire
2
1137 SERIES
FLOW THROUGH
POWER HUMIDIFIER
FOR INSTALLATION ON A VERTICAL
SURFACE OF THE WARM AIR PLENUM
OF ANY FORCED AIR FURNACE
Select location on vertical surface of warm air plenum for mounting
humidifier. Stick mounting template in place making sure the template is
level. Do not install humidifier where the blanked off ends of a cooling coil
will restrict air flow to the humidifier.
COPPER
TUBING
3
PLASTIC
TUBING
Mount the self tapping saddle valve on either a cold or a hot water pipe.
A side or top mount is best to avoid clogging from pipe sediment.
Connect 1/4” O.D. tubing to the saddle valve. Copper tubing requires a
brass compression nut and brass sleeve. Plastic tubing requires a brass
insert inside the tubing, a plastic sleeve on the outside with a brass
compression nut.
NOTE: DO NOT USE PLASTIC TUBING ON HOT W ATER OR IN
CON TAC T WIT H ANY H OT PLENU M SURFAC E OR DUCT.
INSTALLATION OF THIS SADDLE VALVE MUST MEET OR EXCEED
LOCAL CODES AND ORDINANCES.
4
Assemble distributor tube so that it is directed into the center opening of the
distributor trough cover. Connect 1/4" water supply tube to brass filter at
inlet of solenoid.
WITH ANY HOT PLENUM SURFACE OR DUCT. IF USING
PLASTIC TUBING, USE TUBE SUPPORT PROVIDED.
DO NOT USE PLASTIC TUBING IN CONTACT
Cut out center section. Install one cabinet retaining clip in each of
two top holes to assist holding cabinet while installing six cabinet
screws. Install drain pan, evaporator pad and distributor trough using
thumb nuts provided.
SADDLE VALVE INSTALLATION INSTRUCTIONS
Copper Pipe
1. Retract piercing pin into valve body by turning handle
counterclockwise.
2. Screw valve body into upper bracket and tighten.
3. Place rubber gasket over piercing pin.
4. Assemble saddle valve over copper pipe using enclosed screws,
nuts and lower bracket.
5. Tighten screws evenly and firmly. Brackets should be parallel.
6. Complete compression connection to saddle valve outlet.
7. Turn handle clockwise to pierce tubing and close saddle valve.
8. Turn handle counterclockwise to open saddle valve, leave open for
several seconds to flush dirt from pipe and tubing.
Steel, Brass or Hard Plastic Pipe
1. Shut off water supply and drain pipe.
2. Turn handle clockwise to expose piercing pin and close saddle
valve.
3. Place rubber gasket over piercing pin.
4. Drill 1/8" hole in pipe using a hand crank drill to avoid shock hazard.
5. Assemble saddle valve over steel, brass or hard plastic pipe using
enclosed screws, nuts and lower bracket.
6. Tighten screws evenly and firmly. Brackets should be parallel.
7. Complete compression connection to saddle valve outlet.
8. Turn handle counterclockwise to open saddle valve, leave open for
several seconds to flush dirt from pipe and tubing.
Threaded Pipe Fittings
1. Turn handle clockwise to expose piercing pin and close saddle
valve.
2. Seal valve body threads using pipe tape or sealant.
3. Install valve into 1/8" NPT fitting.
4. Complete compression connection to saddle valve outlet.
5. Turn handle counterclockwise to open saddle valve, leave open for
several seconds to flush dirt from pipe and tubing.
P-103 COMPRESSION NUT
P-104 COMPRESSION SLEEVE
P-111 CONNECTOR
1137-38 CABINET ASSEMBLY
PARTS LIST FOR HUMIDIFIER
1137-2 FAN SHROUD
1137-9 FAN BLADE
1137-20 FAN GUARD
1137-24 DISTRIBUTOR TUBE
1099-9 THUMB NUT
1137-35 TROUGH COVER
1137-4 DISTRIBUTOR TROUGH
990-13 EVAPORATOR PAD
SOLENOID VALVE
ASS'Y 990-53
1137-7 WIRING BRACKET
40-7 TINNERMAN NUT
1137-8 MOTOR
1137-50 COOLING FAN
GA4238 RELAY ASS'Y (FORMERLY 1137-26)
1137-39 FRONT COVER
ASS'Y
990-37-76 ORIFICE & STRAINER
ASSEMBLY
990-16-76 ORIFICE FITTING
990-17 STRAINER SCREEN
990-18 STRAINER BODY
1137-31 POWER SUPPLY CORD
1137-3 DRAIN PAN
P-163 HOSE CLAMP
1099-16 DRAIN TUBE
FORM NO. 1137-47 REV. H (FILE 12625)
Litho in U.S.A.
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