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1
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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.
FOR INSTALLATION ON A VERTICAL
SURFACE OF THE WARM AIR PLENUM
OF ANY FORCED AIR FURNACE
INSTALLER: PLEASE FILL OUT AND MAIL GUARANTEE CARD AFTER INSTALLATION
IS COMPLETE. LEAVE INSTALLATION INSTRUCTIONS WITH HOME OWNER
ADDITIONAL MATERIALS THAT MAY BE NECESSARY:
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. junction box, 115 V. grounding outlet, cover and wire
4. 1/2” I.D. drain hose
5. #8 x 3/4” mounting screws
2
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 screen, �
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.
1000 SERIES
FLOW THROUGH
POWER HUMIDIFIER
3
COPPER
TUBING
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 WATER OR IN
CONTACT WITH ANY HOT PLENUM SURFACE OR DUCT.
INSTALLATION OF THIS SADDLE VALVE MUST MEET OR EXCEED
LOCAL CODES AND ORDINANCES.
Select location on vertical surface of warm air plenum for mounting
humidifier. Tape 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. Cut out center section of template.
Open cover and remove evaporator pad assembly. Humidifier
chassis is self retaining, slide top side in first then slide chassis
down. Level chassis and install eight screws.
Fresh Indoor Air Quality
Connect 1/4" water supply tube to inlet of solenoid.
DO NOT USE
PLASTIC TUBING IN CONTACT WITH ANY HOT PLENUM
SURFACE OR DUCT. IF USING PLASTIC TUBING, USE TUBE
SUPPORT P189 AND PLASTIC COMPRESSION SLEEVE P190.
Connect drain hose to 1/2" spout on humidifier cabinet using hose clamp if
necessary. Run 1/2" hose to suitable drain such as floor drain, sewer or
laundry sink. Be sure hose has continuous slope and is not kinked at any point.
4
24V OUTPUT FROM HUMIDIFIER (RED WIRES) OR
727-58 24 V. TRANSFORMER SWITCHED WITH FURNACE
OR 24 VAC POWER SUPPLY SWITCHED WITH FURNACE.
HUMIDIFIER CONTROL LEADS
(YELLOW WIRES)
OUTDOOR TEMP. SENSOR
(NOT USED IN MANUAL MODE)
AC L
AC N
HUM
SNSR
AC L
AC N
HUM
SNSR
Turn on water supply and plug in power cord to check operation of
humidifier. Set humidistat to a demand setting. With the furnace off, the
solenoid valve should be closed and the humidifier fan not running. Start
the furnace, the solenoid valve should open and the humidifier fan run
when the blower or burner circuit is energized. Check flow of water
through distributor trough and evaporator pad. The standard GA4231
yellow orifice will supply approximately 3.5 GPH of water at a line water
pressure of 60 psi. For low water pressures (20-40 psi) a larger orifice
GA4299 is available to provide the same flow. Leave humidistat set at the
recommended setting.
Replace evaporator pad assembly and humidifier cover. Insert low
voltage six connector wiring harness from cover into chassis solenoid
harness.
7
8
CIRCUIT DESCRIPTION
The humidifier is connected to the 120 volt AC circuit through a control
relay. The secondary coil of an isolation transformer, a diode and resistor
supply 24 volts DC for the control circuit which also includes the humidistat
and relay coil. When the control circuit is completed by the humidistat, the
relay closes, supplying 120 volts to the fan motor and 24 volts to the
solenoid valve.
L1
(HOT)
L2
115v.
60CY.
HUMIDIFIER CONTROL LEADS
(YELLOW WIRES)
FAN CONTROL
ON-OFF
SWITCH
SINGLE SPEED
BLOWER MOTOR
ACC
EAC
(HOT)
C
115v.
60CY.
ON-OFF
SWITCH
6A
6C
6B
INSTRUCTIONS FOR WIRING HUMIDIFIER
FIG. 6A WITH FURNACE CIRCUIT BOARD
On furnaces with output terminals ACC, or EAC check output
voltage to determine that terminals are 115V. Connect on-off
switch in series with the hot wire.
NOTE: ALL WIRING SHOULD COMPLY WITH LOCAL
ELECTRICAL CODES.
FIG. 6B WITH SINGLE SPEED BLOWER MOTOR
On furnaces with single speed blowers, mount a junction box and 115v.
grounded outlet connected in parallel with the blower circuit. Connect the
on-off switch in series with the hot or black wire.
FIG. 6C WITH TWO SPEED BLOWER MOTOR
On furnaces with a two speed blower, the humidifier and a Model 12500
Air Pressure Switch may be wired from a continuous 115 volt power
source. Install the on/off switch and Air Pressure Switch in series with the
hot or black wire. The Air Pressure Switch will detect furnace operation
and supply power to the humidifier accordingly.
FIG. 6D WITH TWO SPEED BLOWER MOTOR
On furnaces with a two speed blower, the humidifier may be wired from a
continuous 115 volt power source. Install the on/off switch in series with
the hot or black wire. Install the GA50 Current Sensing Relay in series
with the humidistat circuit. The Current Sensing Relay will detect furnace
operation and supply power to the humidifier accordingly.
GRD
HUMIDIFIER
120v. OUTLET
HUMIDIFIER
COMMON LEAD
120v. OUTLET
C
HI
LO
GA50 CURRENT
SENSING RELAY
MULTI
SPEED
BLOWER
MOTOR
6D
12500 AIR
PRESSURE
SWITCH
NO
C
L1
(HOT)
L2
115v.
60CY.
ON-OFF
SWITCH
GRD
HUMIDIFIER
120v. OUTLET
L1
(HOT)
L2
115v.
60CY.
ON-OFF
SWITCH
GRD
HUMIDIFIER
120v. OUTLET
GRD
6
5
1. Follow the installation instructions
supplied with the humidistat.
2. To remove the humidistat from the
base, squeeze the louvered base at
the top and bottom.
3. Before wall mounting, please
remove the gasket.
�
4. Before return air duct mounting,
please remove the breakout piece.
E2 HUMIDISTAT
8
PARTS LIST FOR HUMIDIFIER
900-9 NOZZLE
900-10 SPOUT
900-40 PAD RAIL
GA19 EVAPORATOR PAD
900-15 DISTRIBUTOR TROUGH
GA4247 FAN BLADE
900-14 DRAIN PAN
GA4237 MOTOR
900-16 NAMEPLATE
1000-11 HARNESS - BOARD
GA4238 RELAY ASS'Y
1137-31 POWER SUPPLY CORD
GA4231 ORIFICE - YELLOW
P-190 COMPRESSION SLEEVE (PLASTIC)
P-101 COMPRESSION NUT
GA4235 DISTRIBUTOR TUBE
P-189 TUBE SUPPORT
P-101 COMPRESSION NUT
P-102 COMPRESSION SLEEVE (BRASS) OR
P-190 COMPRESSION SLEEVE (PLASTIC)
GA4004 STRAINER SCREEN
GA4045 SOLENOID & HARNESS
ASSEMBLY
Fresh Indoor Air Quality
FILL OUT AND MAIL THIS
WARRANTY CARD AND
LITERATURE REQUEST FORM
A
IR CLEANERS AND AIR PURIFIERS
H
UMIDIFIERS
D
IGITAL HUMIDITY GAGE
A
IR FILTER GAGE
FORM NO. 1000-16 (FILE 15066) REV. A
F
UEL OIL FILTERS AND
A
CCESSORIES
Litho in U.S.A.
The operating principle of the humidifier is based on the most efficient
and economical means of evaporating water to the air. The heat
necessary for evaporating water is produced by the furnace.
The water supply to the humidifier is controlled by the electric solenoid
valve. The solenoid valve and humidifier fan are controlled by a
humidistat connected through an isolation relay. The humidistat is
designed for wall mounting in the living area or surface mounting on the
return air duct. ELECTRICAL RATING: 24 VAC/ 60 Hz.
DO NOT SET RELATIVE HUMIDITY TOO HIGH DURING COLD
WEATHER. EXCESSIVE HUMIDITY MAY CAUSE CONDENSATION
ON WINDOWS OR IN WALLS. REFER TO RECOMMENDED
SETTINGS AS DESCRIBED IN THE HUMIDISTAT OWNERS
MANUAL.
Water flows through a strainer, is metered through an orifice to provide
the proper amount of water, and is supplied to the evaporator pad by
the distributor trough. Air from the warm air plenum is pulled through
the wetted evaporator pad by the humidifier fan and returned to the
warm air plenum to be circulated through the living area. Moisture is
evaporated to the air passing through the evaporator pad.
Minerals are not blown into the air stream as occurs in atomizing
humidifiers; they are left on the evaporator pad where a high
percentage is carried off with the waste water.
When the humidifier is installed and operating, no adjustments are
necessary other than setting the control knob on the humidistat to the
desired level of humidification.
To turn the humidifier off, close water supply valve, switch electrical
power off and turn humidistat off.
This humidifier, if properly registered by the return of the warranty registration card to the manufacturer, is warranted to the consumer against defects in
materials and workmanship for a period of ten years from the date of installation. Evaporator pads, water strainers or metering orifices are not covered by
this limited warranty or any other warranties. Any other defective parts will be repaired without charge except for removal, reinstallation and
transportation costs. To obtain repair service under this limited warranty, the consumer must send the defective part or the complete humidifier to the
manufacturer.
THERE ARE NO EXPRESS WARRANTIES COVERING THIS AIR CLEANER OTHER THAN AS SET FORTH ABOVE, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED. THE MANUFACTURER ASSUMES NO
LIABILITY IN CONNECTION WITH THE INSTALLATION OR USE OF THIS PRODUCT, EXCEPT AS STATED IN THIS LIMITED WARRANTY. THE
MANUFACTURER WILL IN NO EVENT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.
This limited warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Some states do not allow either
limitations on implied warranties, or exclusions from incidental or consequential damages, so the above exclusion and limitation may not apply to you.
Any questions pertaining to this limited warranty should be addressed to the manufacturer. (U.S.A.: The manufacturer has elected not to make available
the informal dispute settlement mechanism which is specified in the Magnuson-Moss Warranty Act.)
GENERAL FILTERS, INC. CANADIAN GENERAL FILTERS, LTD.
NOVI, MICHIGAN 48375-1115 SCARBOROUGH, ONTARIO M1R3B7
WWW.GENERALAIRE.COM WWW.CGFPRODUCTS.COM
Your Humidifier is engineered to give helpful and trouble-free humidification. For maximum efficiency the following cleaning procedures should be carried
out at the end of each heating season:
1. Turn off water supply and electrical power to humidifier.
2. Remove cover, water distributor trough, evaporator pad, pad rails and drain pan. Clean excessive mineral
deposits from the distributor trough, drain pan, pad rails and humidifier cabinet. A solution of 1/2 vinegar & 1/2
water will help loosen mineral deposits.
Inspect drain hose, clean or replace as necessary.
3. If the evaporator pad has excessive mineral deposits, replace with a new “GA19” evaporator pad. Install
trough, pad rails and drain pan. Replace cover, reconnect electrical plug..
4. In heavy mineral areas or if the solenoid valve fails to function disconnect the 1/4” water supply line from the
solenoid valve. Carefully pull the strainer screen (P.N. 900-8) from the valve body (P.N. 900-6). Clean the
mineral deposits from all parts. If the orifice is clogged, it may be opened by inserting a small pin. Reinsert the
filter into the valve body.
5. Reconnect the 1/4” water line to the solenoid valve if necessary. Turn on the water supply and check all points
for leakage. The operation of the unit may be checked by starting the furnace. The humidifier operates only
when the furnace blower is running or the burner circuit is energized. The humidifier is now ready for operation.
6. During the summer, turn off water supply and electrical power to humidifier.
CARE AND MAINTENANCE
LIMITED WARRANTY
HOW THE HUMIDIFIER WORKS
AU PROPRIÉTAIRE� : INSCRIVEZ-VOUS EN LIGNE AU
WWW.GENERALAIRE.COM OU REMPLISSEZ LA CARTE
D’ENREGISTREMENT PUIS POSTEZ-LA À L’ADRESSE SUIVANTE� :
OWNER REGISTER ONLINE AT
WWW.GENERALAIRE.COM OR
FILL IN REGISTRATION AND MAIL TO:
O
WNER'S NAME
Nom du propriétaire:
MODEL 1000
MODÈLE 1000
WARRANTY REGISTRATION
Enregistrement de la garantie
S
TREET
A
DDRESS
Adresse:
D
EALER'S
N
AME
Nom du marchand:
D
ATE OF
I
NSTALLATION
D
ATE DE
I
NSTALLATION
C
ITY
Ville:
P
OSTAL
C
ODE
Code postal:
S
TATE
Province:
S
TREET
A
DDRESS
Adresse:
C
ITY
Ville:
P
OSTAL
C
ODE
Code postal:
S
TATE
Province:
S
ERIAL
N
UMBER
N
UMÉRO DE
S
ÉRIE
GENERAL FILTERS, INC.
43800 GRAND RIVER AVE
NOVI, MI 48375-1115
AT
OUTSIDE
TEMPERATURE
RECOMMENDED
SETTING
-20ϒF -29ϒC 15%
-10ϒF -23ϒC 20%
0ϒF -18ϒC 25%
+10ϒF -29ϒC
+20ϒF - 7ϒC
30%
35%
+30ϒF - 1ϒC 40%
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