GeneralAire Elite 1000, Elite 900, Elite 570 User Manual

R

Fresh Indoor Air Quality

INSTALLER: PLEASE FILL OUT AND MAIL WARRANTY CARD AFTER INSTALLATION
IS COMPLETE. LEAVE INSTALLATION INSTRUCTIONS 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 150 degrees F. For maximum evaporative capacity, install this humidifier on the warm air supply plenum.

ADDITIONAL MATERIALS THAT MAY BE NECESSARY:

1. 1/4" diameter plastic supply tubing or 1/4" copper supply tubing for hot water applications

2. current sensing relay (G.F. Model #GA50 suggested)

3. junction box, 115 V. grounding outlet, cover and wire

4. 1/2” I.D. drain hose

5. #8 self piercing sheet metal screws

FOR INSTALLATION ON A VERTICAL

SURFACE OF THE WARM AIR PLENUM

1000 SERIES

FLOW THROUGH

POWER HUMIDIFIER

OF ANY FORCED AIR FURNACE

1

12-1/8”

14-1/8”

Select location on vertical surface of warm air plenum of a forced air
handling system for mounting humidifier that allows for service and
maintenance. Do not install humidifier where the blanked off ends of a
cooling coil will restrict air flow to the humidifier.
12-1/8” tall by 14-1/8” wide as shown.

2

1

2

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.

Cut out a square section

4

Connect 1/4" water supply tube to inlet of solenoid.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.

GCV3412 CODE VALVE INSTALLATION INSTRUCTIONS

Copper Pipe

1. Turn off water supply.

2. Clean pipe, fittings and valve with sandpaper or wire brush.

3. Apply a thin layer of flux to all surfaces to be soldered.

4. Assemble valve to pipe and/or fittings.

5. Cooling the valve by wrapping a wetted rag around the valve is
optional.

6. Heat the joints with a torch. Apply solder to each joint. Continue to
apply heat sufficient to keep solder liquid.

7. After solder has filled entire joint area, remove heat and allow joint
to cool. Do not move or disturb.

8. Slide compression nut over 1/4” copper tube followed by
compression sleeve.

9. Insert tube into valve fully and tighten nut.

10. Turn on water supply and check for leaks.

COPPER

3

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 in addition to a plastic ferrule and brass 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.

FORM NO. 1000-16 REV. E

TUBING

PLASTIC
TUBING

*CODE VALVE IS INCLUDED WITH AUTOMATIC MODELS ONLY

3/4” TEE

1/2” TEE

5

AC L

GFX3 ELECTRONIC HUMIDISTAT

AC N

SNSR

HUM

OUTDOOR TEMP. SENSOR
(NOT USED IN MANUAL MODE)

HUMIDIFIER CONTROL LEADS
(YELLOW WIRES)

24V OUTPUT FROM HUMIDIFIER (RED WIRES) OR
727-58 24 V. TRANSFORMER WITH CONSTANT POWER
OR 24 VAC POWER SUPPLY WITH CONSTANT POWER

MHX3 MANUAL HUMIDISTAT

WALL MOUNT PLATE
STANDARD FOR CANADA
OPTIONAL ACCESSORY FOR
USA

DUCT MOUNT PLATE
STANDARD FOR USA
OPTIONAL ACCESSORY FOR
CANANDA

115v.
60CY.

SNSR

HUM

AC N
AC L

6A

6C

ACC
EAC

(HOT)

C

NO

115v.
60CY.

12500 AIR

PRESSURE

SWITCH

L1
(HOT)

L2

ON-OFF
SWITCH

C

HUMIDIFIER

120v. OUTLET

ON-OFF
SWITCH

HUMIDIFIER CONTROL LEADS
(YELLOW WIRES)

HUMIDIFIER

120v. OUTLET

HUMIDISTAT POWER LEADS
(RED WIRES 24 VAC)

GRD

GRD

6

INSTRUCTIONS FOR WIRING HUMIDIFIER

NOTE: ALL WIRING SHOULD COMPLY WITH LOCAL ELECTRICAL
CODES.

6A WITH FURNACE CIRCUIT BOARD

Use with mechanical humidistat only. 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. Install humidistat and
connect to yellow wires on humidifier.

SNSR

HUM

AC N
AC L

115v.
60CY.

6B

6D

7

ON-OFF
L1
(HOT)

C

HUMIDIFIER CONTROL LEADS

(YELLOW WIRES)

115v.
60CY.

SWITCH

FURNACE

CONTROL BOARD

HUM

24V.

C

60CY.

HUMIDISTAT POWER LEADS
(RED WIRES 24 VAC)

L1
(HOT)

L2

7

FIELD SUPPLIED

RELAY 24V COIL, N.O.

GA50 CURRENT
SENSING RELAY

ON-OFF
SWITCH

HUMIDIFIER

120v. OUTLET

HUMIDISTAT

NC

NO

COMMON LEAD

GRD

C

YELLOW WIRES
FROM HUMIDIFIER

MULTI

C

SPEED

HI

BLOWER
MOTOR

LO

HUMIDIFIER

120v. OUTLET

GRD

6B WITH CONSTANT POWER TO HUMIDIFIER

Use with mechanical humidistat only. Mount a junction box and 115v.
grounded outlet. Connect the on-off switch in series with the hot or black
wire. Install a field supplied 24 volt relay and attach to HUM and C on the
furnace control board. Install humidistat and connect one side to one
yellow wire on humidifier. Connect the other side of the humidistat to one
end of switch side of the relay. Connect the other switch side of the the
relay to the remaining yellow wire on humidifier. Red humidifier leads

are not used for this wiring method. Do not touch red wires together.
Damage to the humidifier will result.

6C WITH ELECTRONIC HUMIDISTAT - PRESSURE SENSING

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 in series with hot or black wire and Air
Pressure Switch in series with the humidistat circuit. The Air Pressure
Switch will detect furnace operation and supply power to the humidifier
accordingly.

6D WITH ELECTRONIC HUMIDISTAT - CURRENT SENSING

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.

Replace evaporator pad assembly and humidifier cover. Insert low voltage
six connector wiring harness from cover into chassis solenoid harness.

8

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.

PARTS LIST FOR HUMIDIFIER

900-9 NOZZLE
900-10 SPOUT

900-40 PAD RAIL
GA19 EVAPORATOR PAD
900-15 DISTRIBUTOR TROUGH
GA4247 FAN BLADE

GA4237 MOTOR
900-71 NAMEPLATE

1000-11 HARNESS - BOARD

900-14 DRAIN PAN

GA4231 ORIFICE - YELLOW
P-190 COMPRESSION SLEEVE (PLASTIC)/P102 COPMRESSION SLEEVE (BRASS)
P-101 COMPRESSION NUT
GA4235 DISTRIBUTOR TUBE

GA4238 RELAY ASS'Y
1137-31 POWER SUPPLY CORD

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.)

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. Replace humidifier evaporator pad if necessary. (Part number GA19) Install trough, pad rails and drain pan.
Replace cover, reconnect electrical plug. Replace evaporator pad yearly for peak performance.

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.

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

LIMITED WARRANTY

CARE AND MAINTENANCE

AT

OUTSIDE

TEMPERATURE

RECOMMENDED
SETTING

-20°F -29°C 15%

-10°F -23°C 20%
0°F -18°C 25%

+10°F -12°C
+20°F - 7°C

30%
35%

+30°F - 1°C 40%

HOW THE HUMIDIFIER WORKS

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.

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.

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.

TROUBLESHOOTING

SYMPTOMS

Humidier will not operate

Proper voltage present at solenoid
valve (24 VAC) but no water ow

Humidier runs without
furnace operation or humidier
never shuts o

Too much humidity in home and/or
condensation on windows

Where can I purchase
replacement parts?

DIAGNOSTIC STEP

1. Set thermostat to operate both furnace burner and blower. Operation may be necessary for system power.

2. Humidity level in home may be higher than humidistat setting. Increase humidity setting on humidistat.*
3 . Verify water supply is on.

4. Check for voltage at the solenoid valve. Voltage should be 24VAC. Bypass the humidistat if necessary to isolate
the solenoid valve circuit.

5. Verify wiring of humidier and humidistat.

6. Contact authorized General Aire contractor to verify voltage in and out of the relay board and replace if necessary.

1. Verify water supply is on

2. Verify metering orice is not obstructed. Very hard water with high mineral content may restrict the metering
orice in as little as one heating season. Replace metering orice if restricted. (part number GA4231)

1. Verify humidier and humidistat wiring. Humidier should operate with furnace burner or blower cycle.

1. Reduce the setting on the humidistat. Refer to CARE AND MAINTENANCE section of this manual to estimate a
humidity setting for the home based on outside temperature. *

1. Replacement parts can purchased through your authorized GeneralAire contractor or visit www.GeneralAire.com
for more information.

* Humidistat is generally located on furnace return plenum or on an inside wall in the living space.

TECHNICAL SUPPORT

USA CUSTOMERS
General Filters, Inc.
43800 Grand River Ave.
Novi, MI 48375
www.GeneralAire.com
[e-mail]
Toll Free [phone]

CANADIAN CUSTOMERS
Canadian General Filters, Ltd.
400 Midwest Rd.
Toronto, ON M1P3A9 Canada
www.CGFProducts.com
[e-mail]
Tel. [phone]