Honeywell HE240 User manual

69-2686EF-01

INSTALLATION GUIDE/OWNER’S MANUAL

HE240, HE280

Humidifier and

Installation Kit

M33322

SAVE THIS DOCUMENT

FOR FUTURE REFERENCE

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HE240, HE280 HUMIDIFIER AND INSTALLATION KIT

69-2686EF—01 2

Safety Definitions

These safety terms identify information you must read prior to installing or operating the

humidifier.

WARNING

Indicates a hazardous situation which, if not avoided, could result in death or

serious injury.

CAUTION

Indicates a hazardous situation which, if not avoided, could cause bodily injury or

property damage.

Safety Precautions

Make sure you read and understand the following safety hazards before installing,

using, or working with the humidifier:

WARNING

Serious Personal Injury Hazard.

Can cause electrical shock and injury from moving parts.

Disconnect power and shut off water supply before removing cover.

WARNING

Hazardous Voltage

Can cause personal injury or equipment damage.

Do not cut or drill into any air conditioning or electrical accessory.

CAUTION

Chemical Hazard.

Can cause personal injury or equipment damage.

Do not use any line connected to an air conditioner.

Do not use gas line.

CAUTION

Temperature and Static Pressure Hazard.

Can cause property or equipment damage.

Locate humidifier where ambient temperature is between 32 and 120 °F (0 to 49 °C).

Do not install humidifier where freezing temperatures could occur.

Be sure supply plenum static pressure is no greater than 0.4 in. wc and water pressure is

no greater than 120 psi.

CAUTION

Sharp Edges Installation Hazard.

Can cause personal injury.

Wear gloves and safety glasses.

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HE240, HE280 HUMIDIFIER AND INSTALLATION KIT

3 69-2686EF—01

IMPORTANT

Read and save these instructions.

WELCOME

Congratulations on your purchase of a Honeywell whole-house humidifier. Proper use

of a Honeywell humidifier has numerous benefits related to your family’s health and

comfort, as well as helping to safeguard and protect your home.

How Your Humidifier Works

Your Honeywell humidifier uses the principle that vapor (evaporated water) is created

when warm air blows over a water-soaked area. As the vapor circulates, the relative

humidity rises.

Your humidity control monitors the relative humidity and activates the humidifier

accordingly. The humidifier has a water supply that dispenses water evenly over a

humidifier pad. The warm dry air from the furnace passes over the humidifier pad and

picks up the moist air to circulate it throughout your home.

Humidified air feels warmer and more comfortable so you may be able to lower your

thermostat heating setpoint, which saves money on your heating fuel bills. The end result

is that your humidifier gives you a comfortable environment that is also energy efficient.

Model Specific Features

The HE280 humidifier has water savings technology built in that could save up to 30%

versus leading brands. This translates to up to 20 gallons of water saved per day!

APPLICATION

This kit contains your new Honeywell HE240 or HE280 Humidifier, H8908 Humidistat

and all the accessories required for installation.

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HE240, HE280 HUMIDIFIER AND INSTALLATION KIT

69-2686EF—01 4

PREPARING FOR THE INSTALLATION

Be sure to identify all the required (Table 1) accessories (included) and make sure the

appropriate tools are available before beginning the installation.

Included Accessories

Required Tools

Tools required for installation include:

•Tinsnip

• Screwdriver

• Pliers

• Adjustable or open-end wrench

•Drill

•Level

• 3/4 in. (19 mm) sheet metal drill bit

Table 1. Included Accessories.

Quantity Accessory

48 in. (1.22 m) Bypass ducting including:

6 in. (155 mm) diameter flexible duct

20 ft (6.2 m) 18 gauge, two-strand thermostat wire

20 ft (6.2 m) 1/4 in. (6.35 mm) OD feed water tubing

10 ft (3.1 m) 1/2 in. (12.7 mm) ID drain tubing

1 bag Connecting and mounting hardware:

4 mounting screws

1 drain tube clamp

1 H8908 Humidistat

1 bag

Saddle Valve Assembly:

1 saddle valve and top clamp

1 threaded bottom clamp

2 bolts

1 rubber gasket

1 brass insert

1 plastic bushing

1 eyelet

1 Plug-in transformer

1 Foil tape roll

1 bag

1 plastic elbow

1 grommet

1 connector strap

1 PVC tubing

1 wire nut

1 Mounting template

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HE240, HE280 HUMIDIFIER AND INSTALLATION KIT

5 69-2686EF—01

Determining Best Location for Humidifier

• Select a location for the humidifier on the supply (warm air stream) duct. See Fig. 1

for examples. Return duct mounting is acceptable if there are space restrictions on

the supply duct. If you are mounting the humidifier on the return duct, simply swap

“return duct” for “supply duct” throughout these instructions.

• Select a location that cannot damage the air conditioner A-coil during installation.

• Do not locate the humidifier on the furnace body.

• Mount the humidifier in a conditioned space to prevent freezing.

• Mount the humidifier at least 3 in. (78 mm) above the furnace body to allow

adequate space for the solenoid valve and drain line.

Fig. 1. Typical humidifier installation locations.

M12248D

HORIZONTAL

DOWN

FLO

LOWBOY

HIGHBOY

HUMIDIFIER

BYPASS

COLLAR

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69-2686EF—01 6

Fig. 2. Typical humidifier installation locations.

Selecting Location for Humidistat

• Select a location for the humidistat on the return plenum or on the wall in the living space.

• Mounting on the return plenum is the easiest installation for the control wiring circuit.

IMPORTANT

The humidistat must be mounted upstream from the humidifier or bypass duct to ensure

it is properly sensing the relative humidity of the living space. Locate the control at least

8 in. (203 mm) upstream from the humidifier in the return air duct. (See Fig. 3.)

Fig. 3. Selecting duct location for humidistat.

Locating Closest 120 V Electrical Outlet

• Select location with access to an outlet. If not available, contact an electrician to

have one installed.

• Make sure that the 20 ft (6.2 m) of thermostat wire is adequate to reach from the

humidifier to the humidistat, and also from the humidifier to the transformer. Please

note that the thermostat wire will need to be cut into the 2 correct lengths. See

“Wiring” on page 14 for more information.

CHOOSE A LOCATION IN A CONDITIONED

SPACE THAT HAS ACCESS TO A WATER SUPPLY

PIPE. COLD OR HOT WATER CAN BE USED.

SELECT A SURFACE ON THE HVAC SUPPLY OR

RETURN DUCT WITH CLEARANCE FOR THE

SOLENOID VALVE, DRAIN LINE AND COVER

REMOVAL.

LOCATION MUST ALSO HAVE ACCESS TO 120

VAC POWER.

ENSURE THE LOCATION IS NEAR A DRAIN.

CONSULT LOCAL PLUMBING CODES FOR

PROPER DRAINAGE.

M33410

ALTERNATE LOCATION

RETURN

AIR

RETURN

AIR

6 in. (152 mm)

MINIMUM 15 in. (381 mm)

MINIMUM

BEST

LOCATION

RETURN AIR DUCT M12831

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HE240, HE280 HUMIDIFIER AND INSTALLATION KIT

7 69-2686EF—01

INSTALLATION

1. Turn off power to the air handling system at the circuit breaker.

2. Draw a level line on the plenum in the selected location.

IMPORTANT

To ensure optimal product performance, be sure the mounting template is

level before marking. Use of a small level is recommended.

3. Locate the template (form number 69-2710 included in the box). For the HE240

model, cut out the template along the dotted line.

4. Tape the template in position and trace around the template.

5. Remove the template and carefully cut the rectangular opening using tin snips.

6. Disassemble the humidifier; remove the cover and take out the humidifier pad

assembly. See Fig. 4.

Fig. 4. Disassembling humidifier.

M33323

WATER

FEED NOZZLE

FRAME

HUMIDIFIER

HOUSING

WATER

FEED TUBE

HUMIDIFIER

PAD ASSEMBLY

COVER

SIDEWALL

BY-PASS SIDEWALL

PRESSURE SWITCH

SOLENOID VALVE

PerfectFLO™ WATER

DISTRIBUTION TRAY

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HE240, HE280 HUMIDIFIER AND INSTALLATION KIT

69-2686EF—01 8

7. Make sure the humidifier housing is

level, then position it in the opening

so the plastic tabs are in place on the

lower sheet metal edge of the open-

ing. Use pliers, as necessary, to flat-

ten cut edges. See Fig. 5.

8. Secure the humidifier housing to the

opening at the top and bottom using

sheet metal screws.

9. Use the 6 in. (155 mm) starter collar

as a template to mark the opening for

the bypass. The starter collar end

can be identified by the pliable metal

tabs.

Fig. 5. Installing humidifier on duct.

10. Carefully cut the opening for the 6 in. (155 mm) starter collar end of the 48 in.

(1.22 m) flex duct. See Fig. 6. Use a drill to start the cut in the middle of the cir-

cle. Cut in an outward spiral to assist in controlling the cut.

Fig. 6. Cutting bypass opening.

DUCT

LEVEL

SHEET METAL

SCREWS (4)

PLASTIC

TABS (2)

DRAIN TUBING M33324

OPENING

TO AIR DUCT

STARTING

HOLE

6 IN. ROUND TEMPLATE

M20172

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HE240, HE280 HUMIDIFIER AND INSTALLATION KIT

9 69-2686EF—01

11. Reassemble humidifier side plates to customize the orientation for your specific

install. The side plate with the humidifier port needs to be on the side of the

humidifier that is closest to the 6 in. (155mm) hole cut in Step 10.

12. Insert flex duct with starter collar into the 6" (155mm) hole that was cut in Step

10. Reach into hole THROUGH THE FLEX DUCT so that the pliable metal tabs

can be bent outwards into the hole. These tabs, when bent outwards, will help

secure the flex duct into your home's duct work.

13. Slide remaining loose end of flex duct over the humidifier port on the HE240/

HE280, making sure that the flex duct advances past the raised plastic tabs on

the port. These tabs will help to hold the flex duct in place. Verify that the damper

blade has adequate clearance to move back and forth between the summer and

winter positions. Secure the flex duct in place with the plastic connector strap.

14. Seal the duct connec-

tions with foil tape.

Seal both

1) the connection

between the starter

collar end of the flex

duct and the home's

duct work and

2) the end of the flex

duct to the humidifier

over the top of the

connector strap.

15. Reinstall the humidi-

fier pad assembly in

the humidifier hous-

ing.

16. Hinge the cover in

place and secure with

the thumbscrew

located at the bottom

of the cover. Fig. 7. Connecting bypass ducting.

M33325

HUMIDIFIER PORT

CONNECTOR STRAP

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HE240, HE280 HUMIDIFIER AND INSTALLATION KIT

69-2686EF—01 10

Connecting the Plumbing

Use hot or cold water and either hard or softened water in the humidifier.

NOTE: Using hot water will increase operating costs, but may provide a small

increase in the amount of humidity delivered.

IMPORTANT

Please consult local plumbing code for proper plumbing regulations before begin-

ning. Use of a manual shutoff valve may be required to meet code in your area.

1. Shut off the water.

2. Use the self-piercing saddle valve (included)

to tap into the water supply line at the loca-

tion selected. Turn the handle on the top of

the saddle valve to the right (clockwise) until

the needle pierces the water supply line.

Leave the needle in this position until the

humidifier is fully installed to prevent leaking

(even though the water supply is turned off,

there can still be water in the line that will

leak as soon as the needle is backed out).

See Fig. 8. If tapping into galvanized pipe,

drain the line and pre-drill 3/16 in. tap for the

saddle valve.

Fig. 8. Installing the saddle valve.

NOTE: The saddle valve is not designed to regulate water flow. The valve is

either open or closed.

IMPORTANT

To prevent debris from clogging the solenoid in-line filter, be sure to install the

saddle valve handle pointing toward the ceiling.

3. Use 1/4 in. (6 mm) OD tubing and

connect the saddle valve to the

inlet side of the solenoid valve on

the humidifier (see Fig. 9).

a. Place the brass compression nut

over the tubing.

b. Slide the plastic compression ring

over the tubing. (Discard copper

compression ring provided with

valve.)

c. Install brass insert into end of

tubing.

Fig. 9. Installing feed tubing.

NOTE: To prevent leaking, use plastic (Delrin) compression rings with plastic

tubing. Use copper sleeve rings only with copper tubing.

M20175

SCREW DRIVER

WATER LINE

M33404

BRASS COMPRESSION NUT

PLASTIC

COMPRESSION

RING

BRASS INSERT

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