Honeywell HE420A- Manual
Honeywell HE420A– Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – CAUTION; Mount Horizontally Using Mounting
- Page 3 – Mount Horizontally On Reinforced Duct; Mount Horizontally On Vertical Duct; WIRING; SET THE WATER LEVEL
- Page 4 – WARNING; SELECT LOCATION AND MOUNT
- Page 5 – Installing the Humidistat to Operate; HUMIDISTAT OPERATING; Automatic Operation; HUMIDISTAT CHECKOUT
- Page 6 – INSTALL THE SAFETY CONTROL
- Page 7 – APPENDIX A
- Page 8 – APPENDIX B
INSTALLATION INSTRUCTIONS
69-1108-2
READ AND SAVE THESE INSTRUCTIONS
HE420A Steam Power Humidifier
APPLICATION
The HE420A Steam Power Humidifier uses a thermal fan
interlock control to provide humidification for the whole
house. The steam power humidifier is designed to work
with high efficiency furnaces and heat pumps.
INSTALLATION
IMPORTANT
This product is for residential applications only
and must be installed by a qualified HVAC con-
tractor. Failure to comply could invalidate the
product warranty, or result in serious injury or
electrocution.
SELECT LOCATION AND MOUNT
WARNING
Electrocution, Heavy Equipment and
Chemical Hazard.
Can cause death, blindness, water damage to
home and heater failure.
• Do not cut into any air conditioning or
electrical line.
• Wear safety glasses when cutting or drilling.
• Mount the humidifier in a level position to
avoid water damage and heater failure.
• Reinforce duct as necessary to ensure
stability.
There are three typical ways of mounting the steam
humidifier. See Fig. 1, 2, and 3. Be sure to select a
location where the humidifier can be plugged in without
an extension cord. The preferred installation location is
on the warm air side of the furnace. If that location is not
possible, the humidifier should be mounted a minimum of
6 ft (1.8m) upstream from the furnace filter. Depending
on the location selected, additional duct reinforcement
may be necessary because the humidifier weighs 18 lb
when filled with water.
Fig. 1. Mount humidifier horizontally under duct
using mounting bracket.
Fig. 2. Mount humidifier horizontally under duct.
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Other Manuals for Honeywell HE420A
Summary
HE420A STEAM POWER HUMIDIFIER 69-1108—2 2 Fig. 3. Mount humidifier horizontally under duct extension using mounting bracket. CAUTION Steam Condensation, Fire and Freezing Water Hazard.Can cause failure of fan or limit control or result in water damage to home. • Do not install the humidifier where t...
HE420A STEAM POWER HUMIDIFIER 3 69-1108—2 Mount Horizontally On Reinforced Duct This horizontal mounting method usually requires duct reinforcement to support the weight of the humidifier and keep it level. The mounting bracket is not used. See Fig. 2. 1. Position the bracket to the bottom of the du...
HE420A STEAM POWER HUMIDIFIER 69-1108—2 4 FINISH MOUNTING AND PLUMBING THE HUMIDIFIER 1. Mount the humidifier as instructed in the Select Location and Mount section. 2. Route the tubing to the humidifier float valve. IMPORTANT Keep the tubing away from sharp edges. 3. Connect the remaining end of th...
