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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: Understand the Wiring Terminals (HE150/HE250/HE300 only)

HE150/HE250 Bypass Terminal

Gf: Used to force system fan on when humidity is

needed.

R: Input from system R. Needed to power Gf when

forcing fan on.

Gt or W: Input from system G or W. Needed to

humidify only during fan or heat calls by system.

HUM: Powered contacts for humidity control.

C: Common. Needed for Gt or W input. Connect to

system C.

Power Out: 24V power for electric controls.

Power In: Power from 15VA transformer on HE150/

HE250 only.

SENSOR: Powered contacts for an air proving device

when utilized.

MCR29935

MCR29937

Before Wiring the Humidier

Before wiring the humidier:

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

I will read the section “Using the DIP Switches” beginning on the next page.

CAUTION: Voltage Hazard.

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

M29936

HE300 Fan Terminal

MCR29950

Humidier 69-2413EF—09

Honeywell TrueEASE User Manual

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