Honeywell HE220 Humidifier Installation Kit Instruction Manual

Honeywell HE220 Humidifier Installation Kit

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 Accessories (Included)

 

Required Tools
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

• Select a location for the humidifier on the supply (warm air stream) or the return plenum. See Fig. 1.
• Select a location for the bypass on the opposite plenum. The sidewalls of the humidifier are interchangeable to allow bypass duct mounting on either side of the humidifier.
• Select a location that cannot damage the air conditioner A-coil during installation.
• Select a location where the 6 ft (1.86m) of 6 in. (155 mm) duct provided is adequate to connect the humidifier to the bypass.
• Do not locate the humidifier or bypass on a furnace body.
• Allow adequate clearance in front of and above the humidifier so you can easily remove the cover to perform routine maintenance.
• Mount humidifier at least 3 in. (78 mm) above the furnace body to allow adequate space for the solenoid valve and drain line.
• Mount humidifier in a conditioned space to prevent freezing.

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.

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.)

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 20 ft (6.2m) of thermostat wire is adequate to reach from the humidifier solenoid, to the sail switch, to the humidistat, to the plug-in transformer in the outlet.

INSTALLING HUMIDIFIER

WARNING

• 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 in the Humidifier Installation Instructions.
4.  Tape the template in position and trace around the template.
5.  Remove the template and carefully cut the rectan-gular opening.
6.  Disassemble the humidifier; remove the cover and take out the humidifier pad assembly. See Fig. 3.
7.  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. 4.
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.
10.  Carefully cut the opening for a 6 in.(155 mm) starter collar. See Fig. 5. Use a drill, punch or awl to start the cut in the middle of the circle. Cut in an outward spiral to assist in controlling the cut.
11.  Assemble the summer shutoff damper into the starter collar. Verify that the damper rotates freely between the open and closed positions. Make sure handle will be accessible. Mark the damper closed position as summer and the open position as winter. See Fig. 6.
12.  Remove liner to expose foam adhesive. Position starter collar over opening.
13.  Using sheet metal screws, connect starter collar to the duct and bypass duct from humidifier to starter collar. Be sure to secure the collar to the duct with sheet metal screws. See Fig. 7.
14.  Seal the duct connections with duct tape.
15.  Reinstall the humidifier pad assembly in the humidifier housing.
16.  Hinge the cover in place and secure with the thumbscrew located at the bottom of the cover.

Connecting the Plumbing

1.  Shut off the water.
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 plastic ring.
   • c. Install the brass insert into the end of the tubing.
   • d. Insert the tubing into the solenoid valve fitting and support the valve while tightening the compression nut.
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.
4.  Use 1/4-in. (6mm) OD tubing and connect the saddle 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.

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 installing.
2.  Mount the switch vertically with pressure connectors facing down, using provided self-tapping screws to secure the switch to the duct.
3.  The return duct is recommended, however the switch can also be mounted to the supply duct.
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 applicable 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

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.

INSTALLING HUMIDISTAT

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 H8909 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. 14.

NOTE: For wall mounting instructions, see the H8908 Installation Instructions.

WIRING

CAUTION

• 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. 15

1.  Run the two-strand thermostat wire from the humidifier to the transformer, from the transformer to the humidistat, and from the humidistat to the pressure switch.
2.  Cut lengths of thermostat wire to reach between components, leaving adequate wire at both ends for connections.
   NOTE: Transformer, humidistat and pressure switch can be wired in any order.
3.  At the humidifier, connect the black and white conductors to the two black humidifier wires.
4.  At the transformer, connect both black conductors to the two transformer terminals. Use a wire nut to connect together the two white conductors.
5.  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

Checklist

• A humidifier is level.
• The starter collar is secured with sheet metal screws.
• The summer shut-off damper is open (in the winter position).
• Control wiring was reviewed using circuit diagram.
• The transformer is plugged in.
• Feed line has no kinks.
• Drain line slopes continuously down and ends at floor drain.
• Water hose inside the humidifier is connected to the 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 Humidity Control to On and turn on the heat by setting the thermostat to 10ºF (6ºC) above room temperature.
   IMPORTANT: The furnace blower must be on in 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 Humidity Control to a comfortable setting for automatic operation.

TROUBLESHOOTING YOUR HUMIDIFIER