GENERALAire 570 Installation Manual

Fresh Indoor Air Quality

570 SERIES

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. When wiring into a multi-speed blower circuit see Step 6.

INSTALLATION: The humidifier may be mounted with the 6" outlet to the right or left by inverting the cabinet and reversing the positions of the distributor trough and drain pan. The humidifier may be mounted on the warm or return air plenum with equal efficiency. See Typical Installations.

ADDITIONAL MATERIALS THAT MAY BE NECESSARY:

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

2. 6" diameter galvanized by-pass pipe

3. electrical wire and wire nuts

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

5. #8 self piercing sheet metal screws

WARM AIR

UP FLOW

RETURN AIR

DRAIN

GENERALAire AC SERIES

HIGH EFFICIENCY AIR CLEANER

WARM AIR

9-1/2”

6”

FLOW-THROUGH

BYPASS HUMIDIFIER

FOR INSTALLATION ON A VERTICAL

PLENUM SURFACE OF ANY

FORCED AIR FURNACE

RETURN AIR

DRAIN

DOWN FLOW

WARM AIR

8-7/8”

The General Aire model 570 may be installed on either the supply or return plenum of a forced air handling system. Select a location for the humidifier that allows for service and maintenance. Cut out a rectangle 8-7/8” wide by 9-1/2“ tall. Extend horizontal centerline of cut out to the adjacent plenum. Cut a 6” hole 10” to 15” from side of humidifier, on cabinet centerline, using connecting collar as guide. The bypass is reversible and can be mounted on the right or left side of the humidifier.

Humidifier is self retaining. Slide top side in first, then slide chassis down. Level chassis and install center screws. If by-pass pipe installs to opposite side of chassis, bend clip on chassis, remove side discharge, and reinstall discharge to opposite side of chassis. Install remaining four corner screws.

FORM NO. 570-18 (FILE 15018) REV. E

Connect by-pass pipe to collar and humidifier cabinet. Using holes at top and bottom of side panel discharge, pierce 2 self tapping screws through by-pass pipe.

COPPER TUBING

PLASTIC TUBING

Mount the self tapping saddle valve or code 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.

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.

*CODE VALVE IS INCLUDED WITH AUTOMATIC MODELS ONLY

3/4” TEE

1/2” TEE

Connect 1/4" water supply tube to brass filter at 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.

Turn damper knob to winter (open) position. Turn on water supply and check operation of humidifier. Set humidistat to a demand setting. With the furnace off, the solenoid valve should be closed. Start the furnace, the solenoid valve should open 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 orange orifice GA4299 is available to provide the same flow. Leave humidistat set at the recommended setting.

SNSR

HUM

AC N

AC L

SNSR

HUM

AC N

AC L

HUMIDISTAT

OUTDOOR TEMP. SENSOR

WIRE JUMPER

OUTDOOR TEMP. SENSOR

WIRE

JUMPER

727-58 24 V. TRANSFORMER

24 V. TRANSFORMER

ON-OFF SWITCH

FURNACE

CONTROL BOARD

24v. 60CY.

115v. (HOT) 60CY.

FURNACE

CONTROL BOARD

24v. 60CY.

HUM

ON-OFF SWITCH

FURNACE

BOARD

FURNACE

BOARD

(HOT)

ACC EAC

24v. 60CY.

24V. SOLENOID VALVE

115v. 60CY.

SNSR

HUM

AC N

AC L

SNSR

HUM

AC N

AC L

HUMIDISTAT

Connect drain hose to 1/2" spout on humidifier cabinet using hose clamp. 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.

115v. 60CY.

(HOT)

FURNACE

COMMON LEAD

(HOT)

115v. 60CY.

(HOT)

FURNACE

COMMON LEAD

(HOT) 115v. 60CY.

24V. SOLENOID VALVE

MULTI SPEED

BLOWER

MOTOR

115v. 60CY.

24V. SOLENOID VALVE

MULTI SPEED

BLOWER

MOTOR

OUTDOOR TEMP. SENSOR

WIRE

JUMPER

727-58 24 V. TRANSFORMER

24V. SOLENOID VALVE

OUTDOOR TEMP. SENSOR

WIRE

JUMPER

727-58 24 V. TRANSFORMER

12500 AIR

PRESSURE SWITCH

24V. SOLENOID VALVE

24 V. TRANSFORMER

C 12500 AIR

PRESSURE SWITCH

ON-OFF SWITCH

24 V. TRANSFORMER

HUMIDISTAT

ON-OFF SWITCH

CURRENT

SENSING

RELAY

ON-OFF SWITCH

CURRENT

SENSING

RELAY

GA50

7A-7D Electronic Humidistat

7A - To furnace control board 24 volts 7B - To constant power using 24V transformer and pressure switch 7C - To furnace control board 115 volts with 24V transformer 7D - To constant power using 24V relay and current sensing relay

7E-7H Manual Humidistat

7E - To furnace control board 24 volts 7F - To constant power using 24V transformer and pressure switch 7G - To furnace control board 115 volts with 24V transformer 7H - To constant power using 24V relay and current sensing relay

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