Honeywell HZ432 TrueZONE Specification Sheet

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HZ432 TrueZONE® Panel

FEATURES

• Intuitive installer setup with easy-to-follow, digital
display uses real language to guide installer through
configuration

• Universal application for any HVAC system using
conventional thermostat wiring (R W Y G C etc.)

• Standard checkout procedure ensures correct
operation before leaving the job

• Robust push terminals for up to two wires per terminal

• Common-sense LEDs indicate stage of heat and
damper state

• Control of two or three wire dampers with open or
closed logic

• Variable-speed fan control lowers fan speed when one
zone is calling for cooling

• Discharge air temperature staging down-stages
equipment when near high or low limit

• Advanced dual-fuel operation changeover based on
outdoor temp and duration of Y2 call

APPLICATION

SUBMITTAL SHEET

The HZ432 TrueZONE® panel controls:

• Single-stage, multi-stage, conventional, or heat pump heat/
cool HVAC equipment up to 3 stages of heat and 2 stages
of cool;

• Dual-fuel systems with up to 2 heat pump stages and 2
fossil fuel stages;

• 2, 3, or 4 zones and is expandable to 32 zones using wired
thermostats with the optional TotalZone
panel;

• 2, 3, or 4 zones with wireless thermostats when used with
the optional wireless adaptor.

®

Add-A-Zone™

68-3071—01

HZ432 TRUEZONE® ZONE PANEL

M24797

13.42
(341)

1.86 (47)

8 (203)

SPECIFICATIONS

Input Ratings:

Voltage: 18-30 VAC 50/60 Hz powered by a transformer of 40

VA or more

Current Draw:

Zone Panel: 8.5 VA max. All VA specifications at 24 VAC.

Wiring:

18- or 20-gauge solid (not stranded) wire

Humidity Ratings:

5% to 90% RH non-condensing

Temperature Ratings:

Shipping: -20° to 150°F (-29° to 66°C)
Operating: -40° to 165°F (-40° to 74°C)

Dimensions:

See Fig. 1.

Mounting:

Mounts with either 2 user-supplied screws at center line to

mount onto 2 x 4, or with 4 screws at corners for wall
mount.

Recommended Thermostats:

See Table 1.

Recommended Dampers:

See Tables 2 and 3.
For maximum number of dampers per zone see Table 4.

Fig. 1. HZ432 TrueZONE panel dimensions in in. (mm).

Accessories:

See Table 5.

Emissions:

Complies with FCC Class B, part 15 requirements.

Table 1. Recommended thermostats.

System Non-programmable Programmable

Single-Stage TH5110D, TH3110D, T87N TH8110U, TH6110D, TH4110D

Multi-Stage TH5220D TH8320U, TH8321U, TH6220D, YTH9421C

Heat-Pump TH5220D (2H/1C only), TH3210D (2H/1C only),

TH5320U* (up to 3H/2C)

TH8320U (up to 3H/2C), TH8321U (up to 3H/2C),
TH6320U* (up to 3H/2C),TH6220D (2H/1C only),
TH4210D (2H/1C only), YTH9421C

†

TH6320R

Wireless

TH5320R

Commercial TH7220U, TH8220U

†

Note: All versions of the model numbers listed above will work with the applications they are listed for.
*This thermostat cannot control two stages of fossil fuel when in emergency heat mode.

†

Wireless adaptor required when used with wireless thermostats.

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