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WIRING

What humidier model do I have?

The model number can be found on the bottom of

the humidier.

STEP ONE: Remove the Humidier Cover

Remove the bottom

cover.

STEP TWO: Install the Transformer (Bypass Models)

Install transformer on the outside of a grounded metal junction box using only a 7/8 in. (22 mm) knockout hole.

Place mounting tabs into the knockout hole and rmly tighten the locking screw. Field wiring connections and

grounding means for the transformer and enclosure shall be in accordance with the National Electrical Code

(NEC) and the Canadian Electrical Code (CEC). Connect wires to the 120V side of the transformer.

For HE150 and HE250, the 15V transformer must provide constant power to the 24V IN terminals.

STEP THREE: Wiring the Humidier

Use a wiring diagram from the following pages that matches your equipment.

When wiring is complete, run the wires coming out of the humidier into the wiring clip on the bottom of the

humidier.

MCR2993

Before Wiring the Humidier

Before wiring the humidier:

I understand and will comply with applicable local wiring codes and regulations.

CAUTION: Voltage Hazard.

Be sure the humidier is not plugged in before beginning wiring.

Wiring TrueEASE to equipment with

powered terminals.

M33039

HUMIDIFIER

WATER

SOLENOID

LEAD WIRE

COM

HUM

WIRING DIAGRAM ASSUMES THE USE OF EQUIPMENT-SPECIFIC

COMMUNICATING THERMOSTAT CONTROLLING THE HUMIDIFIER.

Humidier 33-00067EF—01

Honeywell TrueEASE Professional Installation Guide

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