Honeywell Taz3 Manual

TZ-3 TOTALZONE® ZONE CONTROL PANEL
11 68-0223-2
.
Stages Based On Number of Zones Calling
The thermostat controls the first stage of heat or cool. The 
second stage of heat and cool and the third stage of heat are 
ener
gized by the percentage of zones calling. See Table 4. 
Set the DIP switches as follows:
See Table 4 to determine the number of zones re
quired to 
activate stages of equipment based on the number of zones in 
the system. Staging is based on the zones available in the 
s
ystem, not the...

TZ-3 TOTALZONE® ZONE CONTROL PANEL
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Rebooting Microprocessor 
Certain conditions can hang up the microprocessor. To reset 
it, 
press and release the Boot button. The system reboots and 
enters the Purge mode. 
Discharge Air Temperature Sensor
The Discharge Air Temperature Sensor (not included) is a 
su
pply-duct-mounted temperature probe used to control 
capacity and prevent over-heating or coil-icing. The sensor 
attaches to the TL terminals on the panel.
Set the hi
gh limit temperature on...

TZ-3 TOTALZONE® ZONE CONTROL PANEL
13 68-0223-2
TROUBLESHOOTING
Table 5. Troubleshooting.
Symptom Possible Cause Action
No LEDs are IlluminatedNo power to the board.Check for 24 Vac (±10%) across TR1 and TR2
Shorted wire.Check fuse.  If hot, a short exists in thermostat, damper, 
or Zone-A-Lone wiring.
Damper LEDs  on, but no 
other LEDs illuminated.Insufficient voltage.Check for 24 Vac (±10%) across TR1 and TR2.
Incorrect configuration.Check jumpers and DIP switches for correct 
configuration.
Erratic...

TZ-3 TOTALZONE® ZONE CONTROL PANEL
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Table 6. DIP Switch Settings and Functions.
Table 7. LED Indicators. DIP Switch Function Off (default) On
1Staging by number of zones 
calling.Stages timer or thermostat 
controlled.Stages controlled by number of zones 
calling.
2ZMS low limit.40°F48°F
3Purge mode timing.Three and one-half minutes.Two  mi nu t es .
4Fan control during purge.Controlled by panel.HVAC equipment controlled
5Control of W2 outpu.tTimer controlled.Controlled by W2 from...

TZ-3 TOTALZONE® ZONE CONTROL PANEL
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See Fig. 20 for TZ-TotalZone Zone Control Panel.
Fig. 20. TZ-3 TotalZone Zone Control Panel.
ZoneMAX™
TERMINALSSYSTEM STATUS 
LED INDICATIORS TEST JUMPERS
(NOT USED)ZONE DAMPER 
LED INDICATORS
ZONE-A-LONE™
SWITCH BOOT
BUTTON
EMERGENCY
HEAT SWITCH
RESETTABLE 
FUSETRANSFORMER
TERMINALS ZoneMAX™
TEMP
SETTING
ZONE, THERMOSTAT & DAMPER
MOTOR TERMINALSREMOTE 
ZONE-A-LONE™
CONTROL 
TERMINALS STAGE
TIMER
DIP SWITCHES FOR 
SYSTEM CONFIGURATION 2 STAGE
EM HEAT...

68-0223-2   G.H.  Rev. 9-01 www.honeywell.com/yourhome Home and Building Control Home and Building Control
Honeywell Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN  55422 Scarborough, Ontario
M1V 4Z9
Printed in U.S.A. on recycled 
paper containing at least 10% 
post-consumer paper fibers.
TZ-3 TOTALZONE® ZONE CONTROL PANEL