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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
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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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HZ432 TRUEZONE® ZONE PANEL
Table 2. Recommended residential dampers.
Type Actuation Round Rectangular
Zone Spring-open/power-closed ARD ZD
Power-open/power-closed RRD
Bypass Barometric SPRD SPRD
Table 3. Recommended commercial dampers.
Type Actuation Round Rectangular
Zone Power-open/power-closed MARD D2 with ML6161A2009*
Bypass Power-open/power-closed MARD with SPC D2 with ML6161A2009* and SPC
*Or equivalent damper and actuator.
Table 4. Maximum dampers
Ambient Temp.
100°F (38°C) 28.8
160°F (71°C) 16.8
* Use an SDCR (Slave Damper Control Relay) for additional dampers.
• Maximum number of dampers per panel is limited by transformer size.
• Ensure transformer is large enough to power the panel (8.5 VA) and dampers.
Table 5. Accessories.
Description Part Number
40 VA transformer
AT140A1042*
†
75 VA transformer AT175A1008
Discharge air temperature sensor (DATS)
Outdoor air temperature sensor
TotalZone® Add-A-ZoneTM Control Panel
Wireless adaptor
C7735A1000*
C7089U1006 (wired) or C7089R1013
TAZ -4
THM4000R1000
†
Slave damper control relay SDCR
*Included in HZ432K kit.
†
Included in YHZ432 kits.
*.
Maximum Damper VA
†
per Zone
†
(wireless)
3 68-3071—01
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HZ432 TRUEZONE® ZONE PANEL
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Toronto, Ontario M1V 4Z9
customer.honeywell.com
® U.S. Registered Trademark
© 2010 Honeywell International Inc.
68-3071—01 K.K. Rev. 03-10
Printed in U.S.A.
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