Honeywell TZ-4 User Manual
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.
PRODUCT DATA
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
® U.S. Registered Trademark
Copyright © 2002 Honeywell • All Rights Reserved
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
68-0259-1
TZ-4 TOTALZONE® ZONE CONTROL PANEL
SPECIFICATIONS
Input Ratings:
Voltage: 20-30 Vac, 50/60 Hz.
Power: 13 VA, nominal.
Output Ratings:
1.5A run, 200,000 cycles (30 Vac). 3.5 inrush.
1.5A run, 100,000 cycles (30 Vac) 7.5A inrush.
Humidity Ratings:
5 to 90 percent RH, non-condensing.
Temperature Ratings:
Shipping: -20° to 120°F.
Operating: -40° to 150°F.
Dimensions: 10-3/4 in. H x 12-3/4 in. W x 1-7/8 in. D.
See Fig. 1.
Mounting: Mounts with four 1 in. no. 8 screws (provided)
through holes in cabinet back. Wall anchors are provided.
Wiring: 18-gauge wire for all equipment and system
connections.
Wiring Connections:
Thermostat: R, C, W1/E, W2, W3/AUX, Y1, Y2, G, L, O/B
Dampers: M6 (Closed); M4 (Open); M1 (Common).
Discharge Air Temperature Sensor (C7735A1000); DATS,
DATS.
Zone-A-Lone: OC, OC.
Outdoor Temperature: OT, OT.
Transformer 1: R (hot), C (common).
Transformer 2: T1 (hot), T2 (common).
Equipment: Rc-Rh, W1/E, W2, W3/AUX Y1, Y2, G, O/B.
Thermostats (See Table 1):
Most conventional four-wire (R,W,Y,G) thermostats can be
used to control conventional, heat pump, or multi-stage
equipment.
Manual or automatic changeover switching thermostats can
be used.
Multi-stage or select heat pump thermostats can also be
used.
10-3/4
(273)
12-3/4
(273)
Fig. 1. TZ-4 dimensions in in. (mm).
68-0259-1 2
1-7/8
(47)
M20516
TZ-4 TOTALZONE® ZONE CONTROL PANEL
Table 1. Recommended Thermostats.
System Non-Programmable Programmable
Single Stage
T87F1859/Q539A1014
T87F4010/Q539A4026
T8501D1046
T8400C1016
T8400C1040
T8400C1099
T8601D2027
T8600D2069
T8600D2028
T8601D2019
T8602D2018
T8602D2000
T8000C1002
T8000C1010
T8001C1019
PC8900/W8900A/C
Heat Pumpb
Y594R1243
Y594G1252
T8411R1002
a,c,d
a,e
T8611G2051
T8011R1006
T8011R1014
T8411R1028
Multi-Stageb
Y594D1347
T8524D1015
a
Heat pump thermostat with single Y first-stage terminals. See Heat Pump Thermostats section and Fig. 6.
b
Multi-stage and heat pump thermostats are not required to control multi-stage and heat pump systems with TotalZone. They are
f
T8624D2004
T8624D2012
used only when second stage or emergency heat control from the zone thermostat is needed.
c
The Y594R1243 must be wired to the panel using the B terminal for changeover.
d
Cut thermostat second-stage variable heating anticipator wire (gray).
e
Cut thermostat first-stage fixed heating anticipator wire (bare) and second-stage variable heating anticipator wire (gray).
f
Cut thermostat second-stage cooling anticipator wire (lowest bare wire).
Recommended Dampers (See Table 2):
Ten ZD or ARD dampers maximum connected to each panel
and a maximum of five dampers per zone when using two
40 VA transformers.
Use SDCR and 40 VA transformer for additional dampers
required on one zone.
Dampers are connected to M1 Common, M4 Open, and M6
Closed (see Fig. 7-10 for hookups).
Motor Terminal Damper Action
Common/M1 Common
Open/M4 Power Open
Closed/M6 Power Close
Table 2. Recommended Dampers.
Honeywell Damper Type Round Rectangular
Power-open/power-closed (for
systems > 2000 cfm)
MARD D643 using
ML6161
Motor
Actuator
Spring-open/power-closed (for
ARD ZD
systems </= 2000 cfm)
Accessories: For required accessories, see Table 3.
3 68-0259-1
TZ-4 TOTALZONE® ZONE CONTROL PANEL
N
Table 3. Required Accessories (Not Supplied).
3. Mount the TZ-4 zone panel near the HVAC equipment;
(on a wall or on the cold-air return). See Fig. 2.
4. Level the TZ-4 for appearance only.
Accessory Description
40 VA
transformers
Capacity
AT140D1046
(PMT-40)
C7735A1000 —
protector
Outdoor
C7089B1000 —
Temperature
Sensor
(Required for
dual-fuel
applications)
Round static
pressure
regulator
damper
SPRD7
SPRD8
SPRD9
SPRD10
SPRD12
SPRD14
SPRD16
Rectangular
static pressure
regulator
damper
SPRD12x8
SPRD12x10
SPRD12x12
SPRD20x8
SPRD20x10
SPRD20x12
Bypass Rating
(cfm)
—
300
400
600
750
1200
1800
2400
1000
1200
1400
1600
2000
3000
Wiring
CAUTION
Vol tage H azard .
Can cause electrical shock or equipment damage.
Disconnect power before continuing installation.
Wiring must comply with applicable codes, ordinances, and
regulations.
1. Connect thermostats as shown in Fig. 3-6.
2. Connect dampers as shown in Fig. 7-10.
3. Connect C7735A Discharge Air Temperature Sensor
(not supplied) to the DATS terminals. The wires are not
polarized. See Fig. 13.
4. Connect Add-A-Zone panels (if used) to the AZ1 and
AZ2 terminals.
5. Connect the HVAC equipment to the EQUIP terminals
on the panel. See Fig. 15-21.
6. Connect a 40 VA, 24 volt transformer to R (hot) and C
(common). This must be a dedicated transformer and
each TAZ-4 board also requires a transformer. See Fig.
12.
7. The auxiliary 40 VA 24-volt transformer can be connected to T1 and T2 if additional power for dampers is
required. This second transformer is not required; however, total power consumption of panel and damper is
limited to 40VA without it.
INSTALLATION
Mounting
CAUTION
Equipment Damage Hazard.
Do not mount TZ-4 inside HVAC equipment
Mount only on wall or on cold air return.
Identifying DIP Switches
This panel has two banks of DIP switches, DIP switch 4 (S4)
and DIP switch 5 (S5), see Fig 15. Each bank has eight
individual switches that are identified by two numbers; the first
number is the bank number (4 or 5) and the second number
identifies the individual switch. For example, DIP 5-1 is bank
5, switch 1.
1. Mount the thermostats in each zone of the living space
using the installation instructions provided with each
thermostat.
2. Mount the dampers in the ductwork using the installation instructions provided with each damper.
RETUR
TZ-4
OPTIONAL
LOCATION
EFFICIENCY
AIR CLEANER
E
L
E
C
T
R
O
N
I
C
A
I
R
C
L
E
A
N
E
R
FURNACE
OR BOILER
HIGH
Fig. 2. TZ-4 mounting location.
WATER
HEATER
TZ-4
M20517
68-0259-1 4
Wiring Diagrams (Fig. 3 and 4)
Conventional Thermostats
Conventional (RWYG) thermostats can be used to control
conventional, multi-stage, and heat pump equipment. If the
thermostat has a common terminal, it is wired to C on the
panel, see Fig. 3. A multi-stage thermostat is wired with the
second and third stage of heat to W2 and W3 on the panel
thermostat connections, and with the second stage of cooling
to Y2. Leave the zone O/B thermostat jumper on the TZ-4
disconnected. See Single and Multi-Stage Operation in the
Operation section for instructions on staging the TZ-4.
The PC8900 with the W8900A or W8900C can be used as a
zone thermostat. See Fig. 4 for hookup. This thermostat can
be used to control up to 2 heat and 2 cool stages of
conventional equipment. When used to control heat pump
equipment, the W8900A is recommended.
TZ-4 TOTALZONE® ZONE CONTROL PANEL
3
TZ-4 THERMOSTAT
2
CONNECTORS
Connect a jumper on the W8900 from Rc to Rh as shown in
Fig. 4. Wire terminals R and C to a transformer. If the system
current draw is within specifications, the R and C on the
W8900 could alternately be connected to R and C on the
TZ-4. The PC8900/W8900 draws 5 VA.
G
1
COMMON (C) TERMINAL IS USED ONLY BY THERMOSTATS
1
THAT REQUIRE A COMMON WIRE.
2
MULI-STAGE THERMOSTATS ARE WIRED SIMILARLY BUT WITH
Y2 AND W2 USED FOR SECOND STAGE COOL AND HEAT.
THIRD STAGE OF HEAT (W3) CAN BE WIRED TO W3/AUX.
3
LEAVE O/B JUMPER ON TZ-4 DISCONNECTED.
C
R
W
Y
TYPICAL SINGLE STAGE
THERMOSTAT WIRING
M20509B
Fig. 3. Typical single-stage thermostat wiring.
5 68-0259-1
TZ-4 TOTALZONE® ZONE CONTROL PANEL
2
TZ-4 THERMOSTAT
CONNECTORS
CO
2
1
2
3
4
GND
C
R
RH
RC
24 VAC
1234
120 VAC
PC8900
W8900A/C IS RECOMMEDED FOR CONVENTIONAL AND HEAT PUMP APPLICATIONS. THE W8900B CANNOT
1
SWITCH THE PANEL TO EMERGENCY HEAT.
2
LEAVE O/B JUMPER ON TZ-4 DISCONNECTED.
HUM
HUM
VNT
VNT
W8900A,C
S1
S
T1
T
OUT
OUT
LED
G
Y2
Y1
W1
W2
1
M20508B
Fig. 4. PC8900 with W8900A,C Thermostat wiring.
Heat Pump Thermostats
Select a heat pump thermostat from Table 1. If the thermostat
selected has a separate Y1 and W1 wire, as shown in Fig. 5,
leave the zone O/B thermostat type jumper on the TZ-4
disconnected, and wire as shown in Fig. 5.
68-0259-1 6
If the PC8900/W8900 /Thermostat is used in a heat pump
application, use the W8900A, not the W8900B, and wire as
shown in Fig. 4.
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