GeneralAire 4400A User manual

Installation Manual

Model 4400A Fan-Assist Evaporative Humidiﬁer

Automatic

Please Read And Save These Instructions

IMPORTANT: To ensure your safety and the

longevity of your unit, we recommend:

•Contacting a licensed contractor to perform

maintenance or repairs.

•Changing your Vapor Pad®at the start of each

heating season.



Inside The Box

•GA35 Vapor Pad®(GFI #7902)

•Solenoid Valve Assembly

•GFX4 Digital Automatic Humidistat (GFI #7170)

•Installation Hardware

•Push-to-Connect Valve for 1/2 copper or PEX

•1/4" Diameter plastic supply tubing for cold water applications

•Electrical wire and wire nuts

•(6) #8 x 1/2” Long self-piercing sheet metal screws

CAUTION!

24V Transformer is Factory Installed. Do NOT Connect Any

Power Supply Source to the External Yellow & Red Wires.

• WARNING: DISCONNECT ELECTRICAL POWER

BEFORE BEGINNING INSTALLATION.

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.



WARNING!

This symbol and the word "WARNING" indicates:

IMPORTANT INSTRUCTIONS!

Failure to heed CAUTION! or WARNING! can result in serious injury or death.

USA Model

4400A (GFI #5961)

Canadian Model

GF-4400

Patent Pending

CAUTION!

This symbol and the word "CAUTION" indicates:

IMPORTANT INSTRUCTIONS!



!



Supply Plenum Installation Location: The model

4400A fan-assist evaporative humidier must be installed on

the supply plenum (ONLY) of a forced air handling system.

Select a location for the humidier that allows for service and

maintenance.

Vertical

Installation

Return Supply

Drain Line

Form No. 4400-18 REV B

Model 4400A Humidier Installation Manual

INSTALLATION - SUPPLY (ONLY)

Prepare Duct

1. Cut a rectangular hole using the manufacturer-supplied

mounting template.

Afﬁx Chassis

1. Install the humidiﬁer chassis, making sure the drain

spout is pointing downward, as shown.

2. Level the chassis and install using the six

mounting screws included.

For serviceability, please allow an obstruction-free zone

of at least 4" (101.6mm) on the right side and bottom of

the humidiﬁer.

Install the Push-to-Connect Valve

1. Select desired valve location.

2. Remove 0.6in (15mm) of pipe to account for valve width (Fig. A).

Make sure both pipe ends are square, deburred and clean.

3. Mark both pipes at the insertion depth, 0.95" (24mm) (Fig. B).

Supply

12.63"

Wide

Supply

12.13

High

Fig. A

Fig. B

.95" .95"

.60"

INSTALLATION - SUPPLY (ONLY)

1/2" Drain Hose

Flat Spring Clip

1/2" Spout

6Connect Drain Hose

1. Connect the 1/2" ID drain hose to the spout on the

humidiﬁer cabinet using the provided ﬂat spring clip.

2. Run the drain hose to a suitable drain such as ﬂoor drain,

laundry sink or to a condensate pump (sold separately).

Be sure the hose has continuous slope and is not kinked

at any point.

Connect Water Supply

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

2. Turn on water supply and check for leaks.

CAUTION: Do not use plastic tubing in contact with any

hot plenum surface or duct.



Install the Push-to-Connect Valve, Cont.

4. Firmly insert both pipes into ﬁtting until at full depth.

Verify each pipe is fully inserted. The depth mark will

be within 0.005" (0.13mm) of the release collar (Fig. C).

4200-05

Solenoid Assy

P-190

Plastic Compression

Sleeve

1/4" Water Supply Tube

P-101

Compression Nut

Conﬁgure Water Supply Tubing

1. Utilizing copper tubing requires a brass compression

nut and brass sleeve.

2. Utilizing plastic tubing requires a plastic sleeve on the

outside with a brass compression nut.

Plastic

Sleeve

Brass

Sleeve

Compression Nut

HOT WATER

COPPER TUBING

COLD WATER

PLASTIC TUBING

Fig. C

.95

Model 4400A Humidier Installation Manual

CONNECTING THE GFX4 TO THE 4400A

Wiring the GFX4 Without Relay or Air Proving Switch

Figure 1: Interlocked with call for heat and with use of ﬁeld-supplied jumper between AC-C and HUM1

Figure 2: Blower activation on humidity call and with use of ﬁeld-supplied jumper between AC-L and HUM1

GeneralAire®

4400A Fan-Assist Humidier

GeneralAire®

4400A Fan-Assist Humidier

CONNECTING THE GFX4 TO THE 4400A & TESTING THE UNIT

Utilizing Traditional Wiring to Connect the GFX4

Figure 3: Interlocked with call for heat and with use of ﬁeld-supplied 24V isolation relay

Figure 4: Interlocked with blower and with use of ﬁeld-supplied GA50 sensing relay or 12502 air pressure switch

Test the Operation of the Unit

1. Turn on the water supply.

2. Turn the humidistat RH% to 75%.

3. Turn the furnace on; heat cycle. Make sure the furnace blower motor is on.

4. Once the solenoid valve is energized the valve should open.

5. Check ﬂow of water through distributor trough and Vapor Pad®(3.5 GPH of water at a line water pressure of 60PSI).

6. Check fan operation (ON).

7. Reduce RH% to desired setting after test completion.

GeneralAire®

4400A Fan-Assist Humidier

GeneralAire®

4400A Fan-Assist Humidier

Model 4400A Humidier Installation Manual

Replace your GA35 Vapor Pad®at the beginning of each heating season.

•Remove Cover

•Release & Open Door

•Remove Vapor Pad Assembly

•Remove & Discard Used Vapor Pad

•Remove Scale Buildup On Frame, If Present

•Reinsert Vapor Pad Assembly

•Close Door

•Reinstall Cover

Your new humidier carries a 5-year limited warranty. For our complete warranty policy visit www.generallters.com.

General Filters, Inc. 43800 Grand River Avenue Novi, Michigan 48375

Toll Free: (866) 476-5101 www.generalaire.com

Canadian General Filters, Ltd. 400 Midwest Rd Toronto, ON M1P3A9

Toll Free: (888) 216-9184 www.generalaireiaq.ca

Canadian General Filters

Limited

4400A FAN-ASSIST EVAPORATIVE PARTS ASSEMBLY

MAINTENANCE

WARRANTY

CONTACT

4400-05

SOLENOID

ASSEMBLY

4400-01

CHASSIS

4200-10

SPOUT

4400-22

PIVOT PIN

4200-14

DRAIN PAN

4400-11

WIRE HARNESS 1137-61

RELAY ASSEMBLY

4400-13

COVER

4400-07

FAN MOTOR

COVER

GA35

VAPOR PAD

4200-15

DISTRIBUTION

TROUGH 4400-09

MOTOR MOUNT 4400-08

AIR FLOW ADAPTER

4400-06

CROSSFLOW FAN

4200-21

SS DISTRIBUTION TUBE

ASSEMBLY

4400-12

FAN MOTOR

SHEILD

4400-22

PIVOT PIN

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