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PRODUCT DATA
68-0259-1
® U.S. Registered Trademark
Copyright © 2002 Honeywell • All Rights Reserved
TZ-4 TotalZone® Zone Control Panel
APPLICATION
The TZ-4 TotalZone Zone Control Panel controls single-stage,
multi-stage, conventional or heat pump heat/cool equipment.
It controls 2, 3 or 4 zones, and is expandable up to 32 zones
with optional TotalZone® Add-A-Zone™ Four Zone Control
Panel.
FEATURES
• Up to three stages heat and two stages cooling can be
controlled by thermostat, built-in timer, or based on
the percentage of zones calling.
• Controls single-stage, multi-stage, conventional, heat
pump or dual-fuel equipment.
• Controls up to four zones and can be expanded up to
32 zones with Add-A-Zone Control Panels.
• Uses Honeywell four-wire, single-stage, multi-stage, or
select heat pump thermostats.
• Zone-A-Lone central setback feature.
• Purge timer protects equipment between calls for heat
or cool with choice of panel or HVAC equipment
controlled fan.
• System and zone damper LEDs indicate system and
damper status.
• Individual zone fan control.
• Discharge Air Temperature Sensor for capacity control
with adjustable high and low limits.
• Thermal circuit breaker protects panel and transformer
from damage if miswired.
For Internet access:
www.honeywellzoning.com
For technical support, call 1-800-828-8367.
To download Zoning literature: http://hbctechlit.honeywell.com
Contents
Application......................................................................... 1
Features ............................................................................ 1
Specifications .................................................................... 2
Installation ......................................................................... 4
Startup and Checkout........................................................ 12
Operation........................................................................... 12
Troubleshooting................................................................. 17