Honeywell HE225 User Manual

INSTALLATION INSTRUCTIONS
69-1425EF-03
Template (entire sheet) Top of Humidifier
Template (entire sheet)
Template (entire sheet)
Template (entire sheet)
HE225
Bypass Flow-Through Humidifier
READ AND SAVE THESE INSTRUCTIONS
APPLICATION
The HE225 Bypass Flow-Through Humidifier uses the warm air
furnace blower to provide humidification for the whole house.
INSTALLATION
WARNING
Hazardous Voltage.
Can cause personal injury or equipment damage.
Do not cut or drill into any air conditioning or electrical
accessory.
CAUTION
Freezing Water and High Water or Static Pressure Hazard.
Can cause water damage or permanent equipment
damage.
• The humidifier must be located where the ambient
temperature is above 32°F (0°C) and below 160°F (71°C).
• Be sure supply plenum static pressure is no greater than
0.3 in. w and water pressure is no greater than 125 psi.
IMPORTANT
To assure optimal product performance, be sure the template
is level before marking.
1. Determine the best location for the humidifier and draw a level
line on the plenum. See Fig. 1.
Fig. 1. Typical humidifier installation locations.
IMPORTANT
Mount the humidifier at least 3 in. (76 mm) above the furnace
jacket to allow adequate space for the solenoid valve and
drain line. Check that there is adequate space above the
humidifier to remove and install the humidifier cover. Do not
install on a furnace jacket.
2. Tape this piece of paper in position as your template and trace
around the template.
3. Remove the template and carefully cut the rectangular opening.
4. Disassemble the humidifier. Remove the cover and take out the
humidifier pad assembly. See Fig. 2.
M12248D
HORIZONTAL
DOWN
FLO
LOWBOY
HIGHBOY
HUMIDIFIER
BYPASS
COLLAR

Honeywell HE225 Specifications

General

Dimensions	16 x 10.5 x 14.5 inches
Weight	10 lbs
Voltage	120V
Humidistat	Included
Filter Type	Water panel
Type	Bypass

Summary

Humidifier Application and Installation

Application Overview

Describes the HE225 Bypass Flow-Through Humidifier's use of the warm air furnace blower for whole-house humidification.

Installation Instructions

Detailed steps and safety precautions for installing the humidifier.

General Safety Warnings

Highlights hazards like hazardous voltage, freezing water, and high pressure, plus necessary precautions.

Installation Preparation

Guidance on determining location, using the template, and initial humidifier disassembly.

Humidifier Components and Installation Steps

Humidifier Components

Details on the various parts of the humidifier and their assembly or interchangeability.

Mounting and Securing the Housing

Instructions for positioning and securing the humidifier housing in the prepared opening.

Damper Installation

Procedure for inserting and snapping the damper into the humidifier collar.

Ductwork and Collar Installation

Steps for cutting openings, installing collars, connecting ductwork, and sealing connections.

Cover and Pad Assembly

Guidance on reinstalling the humidifier pad assembly and hinging the cover.

Wiring Safety and Transformer Mounting

Safety warnings for wiring, transformer mounting, and connection requirements.

Wiring and Plumbing Connections

Humidity Control Wiring

Instructions for connecting the solenoid valve, sensing relay, humidity control, and transformer.

Plumbing Saddle Valve

Guidance on using the self-piercing saddle valve to tap into the water supply line.

Water Tubing Connection

Steps for connecting the copper tubing from the saddle valve to the solenoid valve.

Drain Tube Connection

Instruction to connect the drain tube to the humidifier drain fitting.

Checkout and Operation

Checkout Procedure

Steps for verifying the humidifier is working correctly, including checking for leaks.

Thermostat and Humidity Control Settings

Instructions for setting the thermostat and humidity control for optimal performance.