Honeywell HE360 Installation Instructions

HE360 Humidifier and Installation Kit

INSTALLATION INSTRUCTIONS

WELCOME

Required Accessories (Included)

To the comfortable world of humidified air. When you use your Honeywell humidifier, notice that your skin is not as dry, and that your scratchy throat and irritated nasal passages that aggravate allergies and asthma are steadily improving.

You have also taken the first step in reducing the zapping you create when you walk on your carpet and then touch your TV, computer, metal door knob or your pet. Your furniture and woodwork are also benefitting from the difference that humidified air makes.

Congratulations! You have just made a great investment in improving the comfort of your home.

APPLICATION

This kit contains your new Honeywell HE360 Humidifier, H8908 Humidistat and all the accessories required for installation.

INSTALLATION

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.

Required Tools

Table 1. Required Accessories.

Quantity Accessory (Item Quantity)

Humidifier Parts and Accessories

20 ft

(6.2m)

(3.1m)

1 bag Connecting and mounting hardware:

1 bag Saddle Valve Assembly:

18 gauge, two-strand thermostat wire

20 ft

1/4 in. (6.35 mm) OD feed water tubing

10 ft

1/2 in (12.7 mm) ID drain tubing

Wire nuts (4) No. 8 sheet metal screws (18) Drain tube clamp Feed tube mounting clamps (6) Brass inserts (2) Plastic compression rings (2)

1 H8908 Humidistat

Saddle valve and top clamp (1) Threaded bottom clamp (1) Bolts (2) Rubber gasket (1) Brass insert (1) Plastic bushing (1)

69-2517EF-01

HE360 HUMIDIFIER AND INSTALLATION KIT

CAUTION

M12808B

HORIZONTAL

DOWN

FLO

LOW

BOY

RETURN

HIGHBOY

RETURN

Table 1. Required Accessories.

Quantity Accessory (Item Quantity)

Air Pressure Switch and Accessories

2 Black rubber gasket

2 Tubing Fitting Elbow

10 ft

(3.1m)

Tubing, 1/4 in. ID

1 Differential Pressure Switch

2 Screws, #8 x 3/4 in. sheet metal

2 Terminal Adaptor

Tools required for installation include:

• Tin snip.

• Screwdriver.

• Adjustable or open-end wrench.

• Drill, punch or awl.

•Level.

• 3/4-in. Sheet Metal Drill Bit

Determining Best Location for Humidifier

M27302

M27323

— Mount the humidifier in a conditioned space to

prevent freezing.

Fig. 1. Typical humidifier installation locations.

Selecting Water Supply Location

• Use either hard or soft water in the humidifier and either hot or cold water. The water flow rate, with the humidifier running, is 3.5 gal/hr (13 liters/hr) to flush the pad and provide moisture for evaporation.

• Make sure that the 20 ft (6.2m) of feed water tubing provided is adequate to connect the water supply (saddle valve) with the humidifier solenoid valve.

Temperature and Static Pressure Hazard. Can cause property or equipment damage.

Locate humidifier where ambient temperature is between 32°F (0°C) and 160°F (71°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 124 psi.

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

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

• Do not locate the humidifier on the furnace body.

• Allow adequate clearance in front of and above the humidifier so you can easily remove the cover to perform routine maintenance. — Mount the humidifier at least 3 in. (78 mm) above

the furnace body to allow adequate space for the solenoid valve and drain line.

69-2517EF—01 2

Locating Closest Floor Drain

• Select location with access to a floor drain to provide drainage for air conditioner condensation and humidifier drainage.

• If you do not have a drain available, we recommend that you install the Honeywell Whole House Drum or Disk Humidifier. Make sure that the 10 ft (3.1m) of drain tubing is adequate to reach from the humidifier drain connection to the floor drain.

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. For return duct mounting, the humidistat should be mounted upstream from the humidifier or bypass so that 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 2.)

WARNING

CAUTION

RETURN

M12809

COVER ASSEMBLY

HUMIDIFIER PAD ASSEMBLY

FEED TUBE NOZZLE

WATER DISTRIBUTION TRAY

HUMIDIFIER HOUSING

THUMB SCREW

M12813

CLIP

AIR

6 in. (152 mm) MINIMUM

BEST LOCATION

ALTERNATE LOCATION

15 in. (381 mm) MINIMUM

RETURN AIR

HE360 HUMIDIFIER AND INSTALLATION KIT

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

5. Remove the template and carefully cut the rectangular opening.

6. Disassemble the humidifier; remove the cover and

take out the humidifier pad assembly. See Fig. 3.

RETURN AIR DUCT

M12831A

Fig. 2. Selecting duct location for humidistat.

Locating Closest 120V Electrical Outlet

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

• Make sure that the humidifier cord is adequate to reach from the humidifier to the outlet.

• Make sure that the 20 ft (6.2m) of thermostat wire is adequate to reach from the humidifier solenoid, to the sail switch, to the humidistat.

Installing the Humidifier

Hazardous Voltage Can cause personal injury or equipment damage.

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

Sharp Edges Installation Hazard. Can cause personal injury.

Wear gloves and safety glasses.

1. Turn off power to the air handing system at the cir-

cuit breaker.

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

chosen for the humidifier. (Leveling assures optimal humidifier performance.)

3. Locate the template (form number 69-1651 included in the box).

Fig. 3. Disassembling humidifier.

7. Position the securing clips as shown in Fig. 4.

Fig. 4. Position securing clips.

8. Make sure the humidifier housing is level, then posi-

tion it in the opening so the plastic tabs are in place on the lower sheet metal edge of the opening. Use pliers, as necessary, to flatten cut edges. See Fig.

9. Push in securing clips until completely seated.

10. Drill holes and install the three sheet metal screws

on the top of the humidifier housing. Secure the housing with the three remaining screws.

3 69-2517EF—01

HE360 HUMIDIFIER AND INSTALLATION KIT

CAUTION

DUCT

LEVEL

SHEET METAL SCREWS (4)

PLASTIC TABS (2)

DRAIN TUBING

M20204

OPENING

TO AIR DUCT

M20176

BRASS COMPRESSION NUT

PLASTIC COMPRESSION RING

BRASS INSERT

M20177

Fig. 5. Installing humidifier on duct.

11. Reinstall the humidifier pad assembly in the humidi-

fier housing.

IMPORTANT

Be sure to reconnect the water feed tube and ensure that the tube is not pinched or kinked.

12. Hinge the cover in place and secure with the thumb-

screw located at the bottom of the cover.

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 inline filter, be sure to install the saddle valve handle pointing toward the ceiling.

Fig. 6. Installing feed tubing.

4. Use 1/4-in. (6mm) OD tubing and connect the sad-

dle valve to the inlet side of the solenoid valve on the humidifier (See Fig. 9).

5. Repeat step 2, a - d for saddle valve fitting.

NOTE: Cut tubing to correct length so the tubing termi-

nates at the drain.

Connecting the Plumbing

1. Shut off the water.

Chemical Hazard. Can cause personal injury or equipment damage.

Do not use any line connected to an air conditioner. Do not use gas line.

2. First, connect 1/4-in. line to the humidifier’s solenoid valve, located at the bottom of the humidifier. a. Remove the compression nut. b. Discard the brass ring, replacing it with the plas-

c. Install the brass insert into the end of the tubing. d. Insert the tubing into the solenoid valve fitting

NOTE: Do not over-tighten the compression nut. Moder-

ate tightness prevents leaking.

3. Use the saddle valve (included) to tap into the water supply line at the location selected. See Fig. 8. If tapping into galvanized pipe, drain line and pre-drill 3/17-in. tap for saddle valve.

69-2517EF—01 4

tic ring.

and support the valve while tightening the compression nut.

Fig. 7. Installing the drain tubing.

Air Pressure Switch Installation

IMPORTANT

Do not install the switch in an area where temperature exceeds rating of -40F to 190F (-40C to 88C)

1. Disconnect power from the humidifier before install-

ing.

2. Mount the switch vertically with pressure connec-

tors facing down, using provided self-tapping screws to secure the switch to the duct.

HE360 HUMIDIFIER AND INSTALLATION KIT

IMPORTANT

Calibration accuracy requires that the switch be mounted vertically (as pictured in Fig. 8).

Fig. 8. Pressure switch—oriented vertically.

3. The return duct is recommended, however the

switch can also be mounted to the supply duct.

M27300

4. Cut a 3/4-in. diameter hole in the duct within 10 feet

of the switch to ensure the provided tubing reaches the pressure tap elbow.

5. Insert the black rubber gasket into the duct hole.

6. Connect the tubing to the tubing fitting elbow and

insert the tubing fitting elbow into the black rubber gasket.

7. Connect the other end of the tubing to the applica-

ble pressure connection on the switch. e. Black connection if installed on the supply f. Grey connection if installed on the return g. Both grey and black if installed on both

IMPORTANT

With low-speed airflow or variable speed systems it is recommended to run tubing to both the supply and return ducts.

INSIDE

OF DUCT

CONNECT TUBING TO + CONNECTION IF PRESSURE TAP IS MOUNTED TO SUPPLY DUCT. CONNECT TO – IF PRESSURE TAP IS MOUNTED TO RETURN DUCT.

M27304

Fig. 10. Install tubing.

8. You may cut the tubing to fit the connection length

between the tubing fitting elbow and switch. It is also recommended to secure the hose to existing structures to avoid accidental disconnection.

SUPPLY DUCT INSTALL - AIR LINE ONLY TO TAP A,

CONNECTED TO THE + PORT ON THE AIR FLOW SWITCH RETURN DUCT INSTALL - AIR LINE ONLY TO TAP B,

CONNECTED TO THE – PORT ON THE AIR FLOW SWITCH SUPPLY/RETURN DUCT INSTALL - AIR LINE CONNECTED

TO BOTH THE + AND – PORTS ON THE AIR FLOW SWITCH

M27303

Fig. 9. Mounting the pressure switch.

Installing the Humidistat

Installing on Mounting Duct

1. Apply the template to the duct location chosen for the humidistat. Make sure the template is level before drilling the holes.

2. Refer to the template (provided with the H8908 Humidistat Installation Instructions) to drill the control assembly opening and mounting holes for the H8908.

3. Remove the H8908 case from the base.

4. Position the foam gasket on the H8908 base.

5. Position the base on the duct with the arrow up.

6. Secure the base to the duct using the four

1 in. (25 mm) mounting screws provided with humidistat.

7. Connect the low-voltage wires to the leads and replace the H8908 case. See Fig. 12.

NOTE: For wall mounting instructions, see the H8908

Installation Instructions.

5 69-2517EF—01

HE360 HUMIDIFIER AND INSTALLATION KIT

CAUTION

M20179

WIRE SLOT

HUMIDISTAT WIRES

HUMIDISTAT BASE REAR OF HUMIDISTAT

l R

égu

lat

¡F

¡F 0¡

¡F O

0¡F

% 2

% 25

% 3

5% 4

IDITY S

OOR T

0¡

-2

0¡

-1

5¡C O

M28969

BLACK

WHITE

HUMIDIFIER

SOLENOID

VALVE

HUMIDISTAT

AIR PRESSURE

SWITCH

ATTAC H

ADAPTOR

WIRE TO HVAC

C TERMINAL

M27398A

COMMON (C) TERMINAL

1/4 (6) X 1/32 (1) THICK

QUICK CONNECT

NORMALLY OPEN (NO)

TERMINAL 1/4 (6) X 1/32 (1)

THICK QUICK CONNECT

ATTACHADAPTER

WIRE TO HUMIDIFIER

C TERMINAL

ASSEMBLED

IN MEXICO

Fig. 11. Humidistat base and rear view.

WIRING

Hazardous Voltage. Can cause personal injury or equipment damage.

Disconnect power supply before installing or servicing equipment.

IMPORTANT

All wiring must comply with applicable local code, ordinances and regulations.

Wire the humidifier solenoid valve, pressure switch, humidistat and transformer.See Fig. 13.

Fig. 13. Close-up of pressure switch wiring.

1. Run the two-strand thermostat wire from the humid-

ifier to the humidistat, and from the humidistat to the pressure switch and back to complete the wiring loop to the humidifier. This is illustrated in Fig. 12.

2. Cut lengths of thermostat wire to reach between

components, leaving adequate wire at both ends for connections.

NOTE: Humidistat and pressure switch can be wired in

any order.

3. At the humidifier, connect the black and white con-

ductors to the two yellow humidifier wires. (The red wires from the humidifier are not used.)

4. At the humidistat, connect both black conductors to

the two humidistat terminals. Use a wire nut to connect together the two white conductors.

TESTING HUMIDIFIER OPERATION

Fig. 12. Wiring the controls.

69-2517EF—01 6

Checklist

 Humidifier is level.  Control wiring was reviewed using circuit diagram.  Humidifier is plugged in.  Feed line has no kinks.  Drain line slopes continuously down and ends at floor

drain.

 Water hose inside humidifier is connected to

PerfectFlow™ water distribution tray.

After installation use the following steps to check the humidifier operation:

1. Turn on the power and the water supply

2. Turn the H8908 Humidistat to On and turn on the

heat by setting the thermostat to 10ºF (6ºC) above room temperature.

IMPORTANT

The furnace blower must be on to activate the humidifier.

3. Make sure that water is flowing out of the drain

hose. If water does not flow, see Troubleshooting Your Humidifier section.

4. Check for leaks.

5. Reset the thermostat and H8908 Humidistat to a

comfortable setting for automatic operation.

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