GeneralAire GF-3200DMM Evaporative Humidifier Installation Guide

Model GF-3200DMM & GF-4200DMM
Evaporative Humidifier Installation Manual

Please Read And Save These Instructions

Plenum Installation Location: Models
GF-3200DMM & GF-4200DMM humidifiers may be installed on either the return or supply plenum of a forced air handling system. The Humidifier bypass panel is reversible and can be mounted on the right or left side of the humidifier. Select a location for the humidifier that allows for service and maintenance.

CAUTION!
This symbol and the word “CAUTION” indicates:
IMPORTANT INSTRUCTIONS!

WARNING!
This symbol and the word “WARNING” indicates:
IMPORTANT INSTRUCTIONS!

Failure to heed CAUTION! or WARNING! can result in serious injury or death.
Checklist:
√ GF-GA10 Vapor Pad®(For Model GF-3200DMM) OR
√ GF-GA35 Vapor Pad®(For Model GF-4200DMM),
√ Solenoid Valve Assembly
√ Integral Bypass Damper
√ Humidistat
√ 24V Transformer
√ Saddle Valve
√ Hardware
√ 1/4″ Diameter plastic supply tubing for cold water applications, or 1/4″ copper supply tubing for hot water applications
√ 6″ Diameter rigid or flexible by-pass duct
√ Electrical wire and wire nuts
√ #8×1/2” Long self-piercing sheet metal screws or aluminum duct tape

WARNING : DISCONNECT ELECTRICAL POWER BEFORE BEGINNING INSTALLATION.

IMPORTANT: To ensure your safety and the longevity of your unit, we recommend:

• Contact a licensed contractor to perform maintenance or repairs.
• Changing your Vapor Pad ® at the start of each heating season.

WARNING: Do not install where ambient temperatures fall below 32°F / 0° C or where plenum temperatures exceed 200° F / 93° C. For maximum evaporative capacity, install this humidifier on the warm air supply plenum.

INSTALLATION

1. RETURN INSTALLATION: Cut a rectangular hole using the manufacturer-supplied template and a second 6” round hole; 10” to 15” from the side of the humidifier, near the cabinet horizontal centerline.

3. Install the by-pass pipe assy to the humidifier by-pass panel and the furnace plenum.
1 SUPPLY INSTALLATION: Cut a rectangular hole using the manufacturer- supplied template and a second 6” round hole; 10” to 15” from the side of the humidifier, near the cabinet horizontal centerline.

4 Install the by-pass pipe assy to the humidifier bypass panel and the furnace plenum.

Preparing The Solenoid Valve Mounting Bracket For Left To Right Side Installation On 3200 / 4200 Humidifiers

1. Loosen the nut on top of the solenoid (DO NOT REMOVE)
2. Rotate mounting bracket 180° as shown
3. Re-tighten nut

5 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.

OR
OPTIONAL:
GCV3412 Code Valve Installation Instructions* Copper Pipe:

1. CAUTION: Turn off the 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.
   WARNING: For your safety, the following should be performed by a licensed contractor only.

5. Option: To prevent damage to the code valve while soldering, cool the valve by wrapping a wet rag around the body of the valve.

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 the entire joint area, remove heat and allow the joint to cool. Do not move or disturb

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

9. Insert the tube into the valve fully and tighten the nut.

6 Connect 1/4″ water supply tube to the brass inlet of the solenoid.

• Turn on the water supply and check for leaks.
  CAUTION: Do not use plastic tubing in contact with any hot plenum surface or duct.
  Note: The standard stainless steel tube and orifice assembly (part number 4200-21; GFI #4221) will supply approximately 3.5 GPH of water at a line water pressure of 60 PSI.

7 Connect the 1/2″ ID drain hose to the spout on the humidifier cabinet using the provided flat spring clip. Run the drain hose to a suitable drain such as a floor drain, laundry sink, or condensate pump (sold separately). Be sure the hose has a continuous slope and is not kinked at any point.

8 Test the Operation of the Unit

• Turn the damper knob to the WINTER position.
• Turn on the water supply.
• Turn the humidistat ON (towards the left).
• The solenoid valve should be closed when not energized.
• Once the solenoid is energized the valve should open.
• Check the flow of water through the distributor trough and evaporator pad.

9 Install the (Duct Or Wall Mount) Manual Humidistat Complete installation instructions for the (manual or automatic) humidistat can be found inside the humidistat package.

WARNING: ALL WIRING SHOULD COMPLY WITH LOCAL ELECTRICAL CODES.

* W Terminal:

• Some control boards may have a dedicated 24v HUM terminal (confirm with manufacturer literature before installing)
• If 120v HUM terminal is used, please use 24VAC transformer provided

Canadian General Filters Limited

Canadian General Filters, Ltd. 400 Midwest Rd. Toronto, ON M1P3A9 Canada
Toll-Free: 888-216-9184 www.cgfproducts.com

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