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HZ432 TrueZONE
1 69-2198—03
ACCESSORIES
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 TotalZone® Add-A-Zone™
panel;
• 2, 3, or 4 zones with wireless thermostats when used with the wireless adaptor.
Please refer to TrueZONE Panel Frequently Asked Questions form 50-9694 for operating details, or see
http://customer.honeywell.com
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
Wire-
less
†
TH5320R TH6320R
Note: All versions of the model numbers listed above
will work with the applications they're listed for.
* This thermostat cannot control two stages of fossil
fuel when in emergency heat mode.
†
For RedLINK™ wireless devices, a THM4000 is
required. For more than 4 zones, see page 11.
Table 2. Recommended Dampers.
Type Actuation Round Rectangular
Residential
Zone Spring-open/
power-closed
ARD
(6 VA)
ZD (6 VA)
Zone Power-open/
power-closed
RRD
(2 VA)
Bypass Barometric SPRD SPRD
Commercial
Zone Power-open/
power-closed
MARD
(2 VA)
D2 or D3 with
ML6161A2009 (2 VA)
Bypass Power-open/
power-closed
MARD
(2 VA)
with
SPC
D2 with
ML6161B2024* (2 VA)
and SPC
* Or equivalent damper and actuator.
APPLICATION
Table 3. Maximum Dampers.*
Ambient Temp. Maximum Damper VA per Zone
100°F (38°C) 28.8
160°F (71°C) 16.8
* Use an SDCR (Slave Damper Control Relay) for addi-
tional dampers to surpass the maximum damper VA
per zone.
Maximum dampers per panel is limited by transformer
size.
Ensure transformer is large enough to power the
panel, thermostats, wireless adapter module, and
dampers.
Table 4. Accessories.
Accessory Description
40 VA transformer* AT140A1042
75 VA transformer AT175A1008
Discharge Air Temperature
Sensor (DATS)*
C7735A1000
TAZ-4 TotalZone® Add-A-Zone
TM
Control Panel
SDCR** Slave Damper Control
Relay
Portable Comfort
Control***
REM5000R1001
Wireless Adapter*** THM4000R1000
Wired Outdoor Air
Temperature Sensor
‡
C7089U1006 (hard wired)
Wireless Outdoor Air
Temperature Sensor***
‡
C7089R1013 (wireless)
RedLINK Internet
Gateway***
THM6000R1002**
* Included in HZ432K kit.
** Use an SDCR (Slave Damper Control Relay) to add
additional dampers to a zone to surpass the maxi-
mum Damper VA rating per Zone.
*** For RedLINK™ wireless devices, a THM4000 is
required.
‡
A wired or wireless outdoor sensor is required for
Dual Fuel applications.
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