Honeywell TZ-3 User Manual

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PRODUCT DATA

3-2

pyrig

TZ-3 TotalZone® Zone Control Panel

APPLICATION

FEATURES

• Up to three stages heat and two stages cooling can be

Contents

controlled by thermostat or built-in timer, based on the number of zones calling.

• Controls up to three zones and can be expanded with TotalZone Add-A-Zone zone Control Panel for up to 30 zones.

• Uses virtually any Honeywell four-wire, single-stage, multi-stage, or Trol-A-Temp heat pump thermostat.

• Zone-A-Lone central setback feature.

• Purge timer protects equipment between calls for heat or cool with choice of continually on or equipment controlled fan.

• System and zone damper LEDs indicate system and damper status.

• Individual zone fan control.

• Optional Discharge Air Temperature Sensor for capacity control with adjustable high and low limits.

• Thermal circuit breaker protects panel and transformer from damage if miswired.

The TZ-3 TotalZone Zone Control Panel controls single-stage, multi-stage, conventional or heat pump heat/cool equipment. It controls 2 or 3 zones, and is ex

tional TotalZone® Add-A-Zone™ Zone Control Panel.

® U.S. Registered Trademark

andable up to 30 zones with

For Internet access: www.trolatem

www.hone

For technical su

To download Zonin

Application.........................................................................1

Features ............................................................................1

ecifications ....................................................................2

Installation .........................................................................4

Startu

eration...........................................................................10

O Troubleshootin

well.com/yourhome/zoning/zoning_home.htm

and Checkout........................................................9

.................................................................13

.com or

ort, call 1-800-TAT-Temp (1-800-828-8367).

literature: http://hbctechlit.honeywell.com

68- 022

TZ-3 TOTALZONE® ZONE CONTROL PANEL

SPECIFICATIONS

gaug

(

ps)

Electrical:

Dimensions:

Mounting:

24 Vac, 60 Hz.

See Fi

. 1.

Mounts with three screws

rovided) through

7-5/8 (195)

COOL

HEAT

PURGE

FAN

EM. HT. ZONE 1 ZONE 2 ZONE 3

holes in cabinet back

Wiring:

18-

e wire for all equipment and system

connections

Wiring Connections:

Thermostat: W2, L, G, Y, R, W

ers: M6 (Closed); M4 (Open); M1 (Common)

Dam

ZoneMax TL, TL Zone-A-Lone: OC,OC. Transformer: TR1

hot), TR2 (common).

Equipment: Y2, Y1, O, R, G, B, W1, E, W2, W3.

Thermostats (See Table 1):

Conventional 4-wire Manual or automatic chan

each zone thermostat. Multi-sta

e or select heat pump thermostats can be used.

R,W,Y,G) thermostats.

eover switching subbase for

Fig. 1. TZ-3 dimensions in in. (mm).

Table 1. Recommended Thermostats.

System Trol-A-Temp Logo Honeywell Logo

Single Stage

Non-Programmable Programmable Non-Programmable Programmable

7-13/16

(198)

1-5/8

(41)

M19062

T87F3715/Q539A1436 T87F3707Q539A1428

T8601D2027 T8131C1020

T87F1859/Q539A1014 Q87F4010/Q539A4026 T8400C1016 T8400C1040

T8600D2069 T8600D2028 T8601D2019 T8602D2018 T8602D2000 T8000C1002 T8000C1010

Heat Pum

—

T8611G2051

Y594R1243 Y594G1252

a a

T8011R1006 T8011R1014

T8411R1002 T8411R1028

Multi-Stage

Heat pump thermostat with single Y first-stage terminals. See Heat Pump Thermostats with Single Y Output section and Fig. 3.

Multi-stage and heat pump thermostats are not required to control multi-stage and heat pump systems with TotalZone. They are

used onl

when second stage or emergency heat control from the zone thermostat is needed.

— —

Y594D1347

T8624D2004 T8624D2012

a b

Dampers (See Table 2):

Five dam Use SDCR for additional dampers required on one zone. Use isolation rela

Dampers are connected to M1, M4, and M6 (see Fig. 6-10

ers maximum connected to each panel.

when CDO-32 Damper or ML6161

Motor Actuator is used

for hooku

see Fig. 10).

M1 Common

M4 Power Open

M6 Power Close

Accessories:

For re

uired accessories, see Table 3.

68-0223-2 2

TZ-3 TOTALZONE® ZONE CONTROL PANEL

)

Table 2. Recommended Dampers.

Honeywell Damper Type Round Rectangular

Power-open/power-closed MARD IOBD

AOBD AOBD-BM CDO-51

Spring-open/power-closed ARD ZDB

ZDS

Table 3. Required Accessories (Not Supplied With Panel).

Accessory Description

40 VA transformer AT140D1046 (PMT-40

Capacity protector ZMS, DATS (C7735A1000

Round static pressure regulator damper

7 SPRD 8 SPRD 9 SPRD 10 SPRD 12 SPRD 14 SPRD 16 SPRD 18 SPRD

Rectangular static pressure regulator

dam

12 x 8 SPRD 12 x 10 SPRD 12 x 12 SPRD 20 x 8 SPRD 20 x 10 SPRD 20 x 12 SPRD

—

300 400 600 750 1200 1800 2400 3200

1000 1200 1400 1600 2000 3000

Bypass Rating

(cfm)

3 68-0223-2

TZ-3 TOTALZONE® ZONE CONTROL PANEL

INSTALLATION

Mounting

g sp

Wiring

quip

(

Wiring Diagrams (Fig. 3-17)

Conventional Thermostats

Heat Pump Thermostats

CAUTION

Equipment Damage Hazard. Do not mount TZ-3 inside HVAC equipment

Mount onl

Mount the thermostats in each zone of the livin

on wall or on cold air return

using the installation instructions provided with each

thermostat.

Mount the dam

ers in the ductwork using the installa-

tion instructions provided with each damper.

Mount the TZ-3 zone

anel near the HVAC equipment;

locate it on a wall or on the cold-air return. See Fi

Level the TZ-3 for appearance only.

CAUTION

Voltage Hazard. Can cause electrical shock or equipment damage.

Disconnect

must comply with applicable codes, ordinances, and

Wirin

ulations.

Connect thermostats as shown in Fi

Connect dam

Connect the Dischar

supplied) to the TL terminals.The wires are not polar-

ized. See Fi

Connect Add-A-Zone

AZ2 terminals. The AZ1 terminal on the TZ-3 must be

wired to the AZ1 terminal on the TAZ

the AZ2 terminal must be wired on the TZ-3 to the AZ2

on the TAZ. See Fi

Connect the HVAC e

on the

Connect a 40 VA, 24 volt transformer to TR1 (hot) and

common). This must be a dedicated transformer

TR2

and an

transformer. See Fi

ower before continuing installation.

. 3-5.

ers as shown in Fig. 6-10.

e Air Temperature Sensor (not

.12.

anels (if used) to the AZ1 and

anel. Similarly,

. 13.

ment to the EQUIP terminals

anel. See Fig. 14-17.

additional TAZ boards also each require a

. 11.

ace

. 2.

RETURN

AIR

T2-3 OPTIONAL LOCATION

EFFICIENCY

AIR CLEANER

HIGH

E L E

C T R

O N I C A I

R C L

E A N

E R

FURNACE OR BOILER

WATER

HEATER

T2-3

M19063

Fig. 2. TZ-3 mounting location.

The C (common) terminal is used only on thermostats that

uire a common (for example:T8601). See Fig. 3. Wire the

re W2 terminal on a multi-stage thermostat (for example: T8624) to the W2 on the

anel for second stage control from the thermostat. If the thermostat has a Y2 terminal, do not connect it to the

anel.

ZONE CONNECTIONS ON PANEL

THERMOSTAT

LW2 G Y R W M6

GYR WC

ZONE THERMOSTAT

MOTOR

M4 M1

M19064

68-0223-2 4

Fig. 3. Typical single-stage thermostat wiring.

Select a heat pump thermostat from Table 1. If the thermostat selected has a separate Y1 and W1, see Fig. 4. When using the thermostat to control the second sta

e of heat (W2), set DIP switch 5 to On, and DIP switch 1 to Off. Set both DIP switches 6 and 7 to Off.

TZ-3 TOTALZONE® ZONE CONTROL PANEL

(

(W2)

AOBD Dampers

ARD or ZD Dampers

MARD or CDO-51 Dampers

ZONE CONNECTIONS ON PANEL

THERMOSTAT

LW2 G Y R W M6

GLW2E Y1 R W1 C/X

ZONE THERMOSTAT

MOTOR

M4 M1

M19065

Fig. 4. Heat pump thermostat with separate Y1 and W1

terminals and multi-stage thermostat wiring.

If the thermostat selected has a sin

le Y terminal, see Fig. 5.

Select a single Y thermostat for each zone. See Table 1.

Set DIP switch 6 or 7

not both) to the On position. Set switch 6 to On when B on the thermostat is wired to W on the panel. Set switch 7 to On when 0 on the thermostat is wired to W on

anel.

the

When usin of heat

the zone thermostat to control the second stage

, set DIP switch 5 to On, and DIP switch 1 to Off.

MOTOR TERMINALS

M6 M4 M1

5 6

123ZX

FIELD JUMPER

DAMPER MOTOR

Fig. 6. AOBD single damper wiring.

MOTOR TERMINALS

FIELD JUMPER

4 5 6 123ZX

M6 M4 M1

5 6

123

Z X

M19067

ZONE CONNECTIONS ON PANEL

THERMOSTAT

LGYR W M6

E W2 L G Y R O C/X

HEAT PUMP ZONE THERMOSTAT

MOTOR

M4 M1W2

M19066

Fig. 5. Heat pump thermostat with single Y thermostat

wiring.

Wire the AOBD, AOBD-BM and IOBD Dampers to the panel as shown in Fi

. 6. See Fig. 7 when using two dampers on one zone. When three or more dampers are controlled on one zone, a slave dam

er control relay (SDCR) is required.

DAMPER MOTORS

M19068

Fig. 7. AOBD multiple damper wiring.

Wire the ARD or ZD Damper to the panel as shown in Fig. 8.

le dampers can be wired in parallel. When ARD or ZD

Multi

er is used, the zone LEDs switch directly from red to

dam

reen (never amber).

DAMPER TERMINALS

ON PANEL

M6 M4 M1

POWER CLOSE SPRING OPEN MODEL ARD, ZDS, ZDB

M19037A

Fig. 8. ARD or ZD Damper wiring.

Wire the MARD or CDO-51 Damper to the panel as shown in

. 9. These are floating control modulating dampers, but are

Fi controlled as two-

osition dampers on the TZ-3 panel.Two

dampers can be wired in parallel.

5 68-0223-2

TZ-3 TOTALZONE® ZONE CONTROL PANEL

ML6161 Motor Actuator

Transformer

Discharge Air Temperature Sensor

Add-A-Zone Panel

gaug

Conventional Equipment

quip

TO ADDITIONAL

TAZ PANELS

M19073

AZ2

AZ1

TAZ

AZ2

AZ1

TAZ

AZ2

AZ1

TZ-3

ZONE CONTROL PANEL

DAMPER TERMINALS

M6 M4 M1

MARD OR CDO-51

COM / M1

CL / M6

OP / M4

M19069

ZMS

SENSOR

TL TL

M19072

Fig. 12. Discharge Air Temperature Sensor (C7735A or

ZMS) wiring.

Fig. 9. MARD and CDO-51 Damper wiring.

When the ML6161 Motor Actuator is used, wire as shown in

. 10. Wire the R8222 relay to prevent the damper LED from

Fi constantly lighting amber.

ZONE CONTROL PANEL

DAMPER TERMINALS

M6 M4 M1

R8222 RELAY

THERMOSTAT

ZONE

TERMINAL

ML6161

COM / M1

CL / M6

OP / M4

M19070

Fig. 10. ML6161 Damper Motor Actuator wiring.

Wire the transformer to the panel as shown in Fig. 11.

Wire the Add-A-Zone (TAZ) Panel to the TotalZone (TZ-3) Panel as shown in Fig. 13. Up to nine TAZ Panels can be wired to one TZ-3

Use 18500 feet. Kee

and equipment; otherwise, use shielded cable wiring.

wirin

anel. See Fig. 13.

e thermostat wire for runs up to a maximum of

these wires at least 12 in. from line voltage

IMPORTANT:

When multiple panels are used, it is important that the transformers be in-phase. Check the phasing by measuring for 24V across the TR2 transformer terminals on each panel. There should be 0 Vac. If not, reverse the TR1and TR2 transformer wires on one of the panels and recheck.

NOTE: If the installation includes an Add-A-Zone

the TotalZone Add-A-Zone Panels section.

24 VOLT TRANSFORMER

TR2 TR1

24V, 40 VA

TRANSFORMER

MODEL AT140D1046

Fig. 11. Transformer wiring.

Wire the C7735A or the ZMS to the panel as shown in Fig. 12.

68-0223-2 6

anel, see

Fig. 13. TotalZone Add-A-Zone wiring.

Wire the heating and cooling equipment to the equipment terminals on the TZ-3 Panel as shown in Fi

Electric Furnaces: Set DIP switch 8 to On to ener

M19071

with a call for heat.

dro-Air: Wire the zone valve or circulator relay to the W1

ment terminal. (If the circulator relay has powered

. 14.

ize the fan

terminals, use an isolation relay.) Set DIP switch 8 to On to

ize the fan with a call for heat.

ener

Oil Heat: Wire an isolation rela isolate the oil

rimary from the panel.

on the W equipment wire to

TZ-3 TOTALZONE® ZONE CONTROL PANEL

Heat Pump Equipment

quip

Multi-Stage: Wire the equipment as shown in Fig. 14 using the W2 terminal for second sta

e of heat and the W3 terminal for

third stage of heat. Wire the Y2 for second stage of cooling.

HEAT

ZoneMAX

TEMPERATURE

SENSOR

TO TERMINAL AZ2 ON TAZ (IF USED) TO TERMINAL AZ1 ON TAZ (IF USED)

OUTDOOR CONDENSING UNIT

24V TRANSFORMER

FAN RELAY

HEAT RELAY

HVAC CONTROLS

ZoneMAX

Add-A-Zone

2 STAGE EM HEAT

MODEL TZ-3

TL TL

AZ2 AZ1

Y2 Y1 O R G B W1 E W2 W3

COOL PURGE FAN EM.HT ZONE 1 ZONE 2 ZONE 3

130 F

140 F

120 F 110 F

MAXIMUM

TEMPERATURE

THERMOSTAT MOTOR

LW2 G Y R W M6 M4

15 MINUTES

150 F

10 MINUTES

160 F

5 MINUTES

2 3 4 5 6 7 8

ZONE 1

STAGE TIMER

20 MINUTES

25 MINUTES

30 MINUTES

THERMOSTAT MOTOR

LW2 G Y R W M6 M4

OVERRIDE

PURGE

ZONE 2

THERMOSTAT MOTOR

LW2 G Y R W M6 M4

REMOTE OCCUPIED/

UNOCCUPIED CONTROL

(CLOSE IN UNOCCUPIED)

BOOT

OFF

Emergency Heat

OCCUP

REMOTE

Zone-A-Lone

UNOCCUP

OC OC TR2 TR1

ZONE 3

CGYRW

ZONE 1

THERMOSTAT

456Z

123X

Fig. 14. Heating and cooling equipment.

Wire the heat pump to the equipment terminals on the panel as shown in Fig. 15. Refer to manufacturer’s instructions for additional wirin

ment terminals for the thermostat terminals shown.

instructions and substitute the TZ-3

IMPORTANT

Some heat pump manufacturers (such as York and Trane) use the B terminal as the transformer common. Do not connect the common from the equipment to the zone control panel.

CGYRW

ZONE 2

THERMOSTAT

456Z

123X

OPPOSED BLADE DAMPER MOTORS

GYRW

ZONE 3

THERMOSTAT

MODEL ARD OR ZD DAMPERS

24V, 40 VA TRANSFORMER

Two-speed Compressor: Wire the second stage compressor to both Y2 and W2. Wire the auxiliar two-sta

e emergency heat jumper and install a jumper from

heat to W3. Remove the

W3 to E.

Fossil Fuel Kits with Heat Pum

s: Wire these systems like Fig.15 but use the manufacturer’s fossil fuel kit. Wire the Trane XL 1800 and the TAYPLUS 103 as shown in Fi The recommended thermostat is theT8611G2051.

M19074

. 16.

7 68-0223-2

TZ-3 TOTALZONE® ZONE CONTROL PANEL

Water Source Heat Pumps

OUTDOOR CONDENSING UNIT

TZ-3 COMPRESSOR RELAY

REVERSING VALVE (COOL)

24V TRANSFORMER

FAN RELAY

EMERGENCY HEATING RELAY

2 STAGE HEATING RELAY

HEAT PUMP CONTROLS

PAN EL

EQUIP

Fig. 15. Heat pump with auxiliary heat wiring.

TAYPLUS 103

Y3 X3 G3

Y2 G1

X2 Y1 B W1

YLO

VARIABLE

SPEED

GAS

FURNACE

TRANE XL1800

CONDENSING

UNIT

ODT

M19075

Y2 Y1 O R G B W1 E W2 W3

HEAT

COOL PURGE FAN EM.HT ZONE 1

ZoneMAX

TL TL

AZ2 AZ1

Add-A-Zone

130 F

120 F 110 F

MAXIMUM

TEMPERATURE

140 F

15 MINUTES

150 F

10 MINUTES

160 F

5 MINUTES

2 3 4 5 6 7 8

STAGE TIMER

20 MINUTES

25 MINUTES

30 MINUTES

OVERRIDE

PURGE

Y1 O R G B W1 E W2

2 STAGE EM HEAT

MODEL TZ-3

ZONE 1

THERMOSTAT MOTOR

LW2 G Y R W M6 M4

YERW2

G O/B C

THERMOSTAT MOTOR

LW2 G Y R W M6 M4

ZONE 2

T8611G2051

NOTES:

1. DIP SWITCHES 6 OFF AND 7 ON.

2. DIP SWITCHES 1 OFF AND 5 ON.

3. T8011R OR T8411R MAY ALSO BE USED.

4. REMOVE THE 2 STAGE EM HEAT JUMPER.

M19076

Fig. 16. Trane XL 1800 with TAYPLUS 103 in restricted mode wiring.

Wire the equipment, as applicable, to the TZ-3 as shown in

68-0223-2 8

Fig. 17. Turn DIP switch number 8 to On for fan on in heat. Remove the two-stage emergency heat jumper.

TZ-3 TOTALZONE® ZONE CONTROL PANEL

STARTUP AND CHECKOUT

(

(up) p

(

Waterfurnace: Wire this system to the panel as shown in Fig. 17 exce

t use two isolation relays on compressor wires W1,

Y1 and W2, Y2.

1ST STAGE COMPRESSOR

2ND STAGE COMPRESSOR

AUXILIARY HEAT

Fig. 17. Water source heat pump wiring.

After the installation is complete, verify correct operation as follows:

Place the Em Heat switch in the Off

Place the Zone-A-Lone switch in the Occu

down) position.

/Remote

osition.

Verify that the DIP switches are set correctly. See

uence of Operation section and Table 6 for correct

Se configuration.

Power u are callin

the TZ-3 and set the thermostats so no zones

. The board then enters the Purge mode where all dampers open and the fan operates for two or three and one-half minutes no Dischar

e Air Temperature Sensor connected to the

configurable). (If there is

2 STAGE EM. HT.

Y2 Y1 O R G B W1 E W2 W3

M19077

anel, the Idle LED flashes seven times before entering the Pur dam

Set zone one thermostat to heat and raise the setpoint to call for heat. Verif one dam

e mode.) Then the Idle LED turns red and each

er LED turns green.

that the heat LED is red and zone

er remains green while the other damper LED

turns red.

Raise zone two set

oint to call for heat. Lower zone one setpoint to stop the call for heat to that zone. Verify that zone one LED turns red and zone two LED turns

Repeat for zone three.

Alternatel that the

, lower the setpoint to call for cooling.Verify

reen cool LED illuminates.

it may be amber while moving)

reen.

9 68-0223-2

TZ-3 TOTALZONE® ZONE CONTROL PANEL

OPERATION

Sequence of Operation

purg

Purge Mode

quip

Individual Zone Fan Control

Single and Multi-Stage Operation

quip

1st Stage by Thermostat, 2nd and 3rd Stages by

Timer (Fig. 18)

1st Stage by Thermostat, 2nd Stage Heat by

Thermostat

purg

On a call for heating or cooling, the zone damper stays open to the callin are not calling. The TZ-3 panel brings on the heating or coolin until that zone is satisfied. When the call is satisfied, the

stem enters the Purge mode. This holds open the damper

s of the last zone callin time can be set to three and one-half or two minutes. After

e, all dampers return to the Open position.

zone thermostat can call for heating or cooling. If there are co-existing calls for heat and cool, the panel first accepts the first call. Once that call is satisfied, or a maximum of 20 minutes has ela call.

On a call for heatin or the cool LED illuminates green. The zone damper LED turns not callin LEDs turn amber.

At the end of every call for heat or cool, the panel enters a

e mode that holds open the calling zone damper for three

Pur and one-half or two minutes. Durin HVAC equipment can operate the fan. Purge also serves as a time dela e system is in the Purge mode. Pressing the purge override button for two seconds overrides the Pur there is a new call for heat or cool durin dampers are moved to the Open position at the end of purge.

zone, and the dampers close to the zones that

and conditioned air is delivered to the calling zone

and purges into that zone. The purge

sed, the panel switches to allow the opposite

or cooling, the heat LED illuminates red

reen for the zone calling, and the dampers in the zones

close and turn red. As AOBD dampers move, the

this time, the panel or the

to prevent short cycling of the heating and cooling

ment after each call. Purge LED lights to signal that the

e mode. Unless

the Purge mode, all

The panel can control up to three stages of heating and two

es of cooling. The first stage is energized by the

sta thermostat. The second stage of heating is brought on by the thermostat, timer, or number of zones callin of heatin calling. The second stage of cooling is brought on by the timer or number of zones callin

The followin sta

If the e follows:

The thermostat controls the first stage of heat or cool. If the call is not satisfied by the first stage within the time set on the timer, the is not satisfied b timer, the panel brings on the third stage.

Set the DIP switches as follows:

is brought on by the timer or number of zones

instructions show how to configure the panel for

e control.

ment is single stage, set the DIP switches as

DIP Switch Number Status

1 Off

5 Off

anel energizes the second stage. If the call for heat

the second stage within the time set on the

DIP Switch Number Status

. The third stage

DIP Switch

Number Status Purge Time

3 Off 3.5 minutes

3 On 2 minutes

DIP Switch

Number

4 Off Panel control of fan

4 On HVAC control of fan

When all zones are satisfied, the Fan switch of each thermostat controls the fan o Fan switch is in the On position, the fan is energized, and the

ers close to zones where the Fan switch is in the Auto

dam

osition. If there is a call for heat or cool during this time, the circulation mode ceases, and the heat or cool call is honored. When the zone callin resumes.

68-0223-2 10

Status Fan Control

in purge

eration for that zone. When the

is satisfied, the circulation call

1 Off

5 Off

15 MINUTES

10 MINUTES

5 MINUTES

STAGE TIMER

Fig. 18. Stage timer.

The thermostat controls the first stage of heat or cool and the second sta cool and third stage of heat. If the first and second stages combined do not satisf on the timer, the

Set the DIP switches as follows:

e of heat. The timer controls the second stage of

the heat call within the time specified

anel brings on the third stage of heat.

20 MINUTES

25 MINUTES

30 MINUTES

M19078

TZ-3 TOTALZONE® ZONE CONTROL PANEL

Stages Based On Number of Zones Calling

Thermostat Operation

Conventional Thermostats

pump

Heat Pump Thermostats

HEAT PUMP THERMOSTATS WITH SINGLE Y OUTPUT

HEAT PUMP THERMOSTATS WITH SEPARATE Y1 AND W1

TERMINALS

Emergency Heat Control

pump

jump

quip

Multi-Stage Thermostats

Manual and Automatic Changeover Thermostats

DIP Switch Number Status

1 Off

5 On

The thermostat controls the first stage of heat or cool. The second sta energized by the percentage of zones calling. See Table 4. Set the DIP switches as follows:

DIP Switch Number Status

See Table 4 to determine the number of zones required to activate sta the s system, not the number of zones used for the particular

lication. As zones satisfy, stages 2 and 3 drop out.

e of heat and cool and the third stage of heat are

1On

5Off

es of equipment based on the number of zones in

stem. Staging is based on the zones available in the

Table 4. Staging by Percentage of Zones Calling.

e heat using a 5-30 minute panel, or staging can be

sta controlled b equipment terminals are energized for changeover use with heat

Heat pump thermostats can be used if thermostat control of

stage is desired. Thermostats that have a single Y

2 terminal for first sta selected, all thermostats must be similar.

If the thermostat ener must be set to On and the O thermostat wire connected to W on the thermostat connections for that zone. If the thermostat ener and the B wire connected to W on the panel. In either case, the O is alwa B is alwa

the percentage of zones calling. The O and B

e heat and cool can be used. When

izes O on a call for cool, DIP switch 7

izes B on a call for heat, DIP switch 6 must be set to On

s energized to the equipment in cooling, and the

s energized to the equipment in heating.

IMPORTANT

Be sure DIP switches 6 and 7 are never both in the On position.

Use heat pump thermostats with separate Y1 and W1 terminals for first sta and 7 in the Off used.

e heat and cool. Keep DIP switches 6

osition when thermostat O or B wire is not

Number of

Zones in

System

32 32

42 33

52 43

63 54

73 54

83 65

94 75

10 4 7 6

11 4 8 6

12 5 9 7

Conventional (R,W,Y,G) heat/cool thermostats can be used with the TZ-3 to control sin systems and heat pumps with auxiliary heat. The panel can be confi

ured to control second stage heat and cool and third

Number of Zones Required

2nd Stage

Heat

3rd Stage

Heat

le or multi-stage gas, electric or oil

2nd Stage

Cool

Emergency heat is defined as using an auxiliary heat source without usin thermostat heat pump is locked out and calls for heat are sent to the E terminal.

A heat from the thermostat s durin recommended heat pump thermostats all have hot L terminals. See Table 1.

The two sta both emer W2, remove the with electric heat stri below the e

anel.

Use multi-stage thermostats to control two stages of heat via W1 and W2 thermostat terminals. Control the third sta heat throu second stage of cooling with the timer.

Automatic changeover thermostats provide automatic chan cool based on the mode of each zone thermostat.

the heat pump. When the Em Heat switch or a

uts the panel in the emergency heat mode, the

thermostat can also control emergency heat

stem switch. An L terminal energized

the emergency heat mode is required. The

e Em heat jumper connects W2 and E. Jumper ins to energize the W2 equipment on a call for ency heat. When E is a different source of heat than

er (for example, two-stage heat pump

auxiliary heat ). The jumper is located

ment terminals on the lower-left corner of the

e of

h the stage timer built into the panel. Control the

eover by zone. Manual changeover thermostats heat or

11 68-0223-2

TZ-3 TOTALZONE® ZONE CONTROL PANEL

Rebooting Microprocessor

Discharge Air Temperature Sensor

quip

Zone-A-Lone Switch

Circuit Breaker Protection

Fan On In Heat

TotalZone Add-A-Zone Panels

Certain conditions can hang up the microprocessor. To reset it, press and release the Boot button. The system reboots and enters the Pur

The Discharge Air Temperature Sensor (not included) is a supply-duct-mounted temperature probe used to control

acity and prevent over-heating or coil-icing. The sensor

ca attaches to the TL terminals on the

Set the hi dial on the Set the temperature from 110 °F to 160°F in ten-degree increments. The recommended settin

stems is 160°F (default factory setting). For heat pump

s systems, the recommended setting is 120F.

The coolin

e mode.

anel.

h limit temperature on the maximum temperature

anel, located left of the stage timer. See. Fig. 19.

for fossil fuel/ electric

temperature limit can be set at 40°F or 48°F.

130 F

120 F

110 F

MAXIMUM

TEMPERATURE

Fig. 19. Maximum temperature dial.

140 F

150 F 160 F

M19079

IMPORTANT

Be sure the Discharge Air Temperature Sensor wiring does not run parallel with line voltage wiring unless more than 12 in. of separation exists or shielded cable is used.

Use DIP switch 2 to change cooling limit settings.

When the Zone-A-Lone switch is in the occupied position and the OC/OC terminals are not used, the system functions as a normal zone control s unoccu for heat, cool, or fan, except from zone one, are not honored. The zone one thermostat becomes the controllin for the entire s thermostat can be set back instead of adjusting each zone thermostat in the buildin

The T8601D2027 and T8611G2051 include two OC terminals. When wired to the TZ-3 OC terminals, and with the Zone-ALone switch in the occu unoccupied mode during the Leave and Sleep programs. This feature re

A built-in thermal circuit breaker protects the TotalZone panel. This circuit breaker protects the panel against shorts in the thermostat and dam unoccu wiring of the HVAC equipment into the panel.

When the circuit breaker is tri illuminate and the yellow rectangular component located to the left of the TR1 and TR2 terminals is hot to the touch. Remove the circuit breaker to cool off and reset. To eliminate the short, verif

The system blower can be set to come on with a call for heat as required for hydro-air, heat pump, or electric heat systems. Set the blower usin

ied position, all dampers are opened and all requests

uires two extra wires to the Zone 1 thermostat.

ied switch. It does not protect against shorts in the

ower to the panel for at least ten seconds to allow

the dampers and thermostat wiring.

stem. When switched to the

thermostat

stem. During long unoccupied periods, one

ied position, the board enters the

er wiring and the remote occupied/

ed, none of the LEDs

DIP switch 8.

Cooling

Dip Switch Status

2 Off 40°F

2 On 48°F

If the s limit, the heatin continues running to purge the conditioned air from the

When the low limit is tri resets. When the hi until it resets.

Once the tem e

68-0223-2 12

stem trips due to exceeding a high or low temperature

or cooling system shuts down and the fan

lenum.

ed, the Cool LED flashes until it

h limit is tripped, the Heat LED flashes

erature recovers by ten degrees, the

ment run resumes.

Temperature

Limit

DIP Switch 8 Fan Control

Off HVAC system

On Fan on in heat

Using TotalZone Add-A-Zone Panels, the system can be ex

anded to up to 30 zones. There are three models: TAZ-1,

one zone; TAZ-2, two zone; and TAZ-3, three zone. Two wires

uired to connect the TAZ to the TZ-3.

are re

IMPORTANT:

See Fig. 13 and the TAZ installation instructions for more information.

TZ-3 TOTALZONE® ZONE CONTROL PANEL

TROUBLESHOOTING

Table 5. Troubleshooting.

Symptom Possible Cause Action

No LEDs are Illuminated No 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,

Damper LEDs on, but no other LEDs illuminated.

Erratic Operation Emergency Heat switch on. Turn off (down) Emergency Heat switch.

Heat pump operates incorrectl

Heat LED flashing. High limit reached. LED stops flashing with ten-degree fall.

Cool LED flashing. Low limit reached. LED stops flashing with ten-degree rise.

Idle LED flashes five times on bootu

Idle LED flashes continuousl

Add-A-Zone not operating. Incorrectly configured. Verify DIP switch settings on the TAZ panels.

or not at all.

Insufficient voltage. Check for 24 Vac (±10%) across TR1 and TR2.

Incorrect configuration. Check jumpers and DIP switches for correct

Zone-A-Lone Feature on. Turn off (up) Zone-A-Lone.

Incorrectly wired. Verify that W1 and Y1 equipment terminals are jumped.

Incorrectly configured. Verify DIP switches 6 and 7 are correctly set for the type

ZMS problem or not connected.

ZMS failure. Check for dc voltage across TL terminals:

or Zone-A-Lone wirin

uration.

confi

of thermostat used.

Verify that ZMS (if any) is connected, and wired correctl

If 0 volt = short. If 1 volt = o If .2 to .8 volt = normal.

en.

Incorrectly wired. Check AZ1and AZ2 for correct wiring.

Be sure that AZ1 and AZ2 are at least 12 in. from line voltage wiring.

Be sure the transformers are in-phase.

13 68-0223-2

TZ-3 TOTALZONE® ZONE CONTROL PANEL

quip

g (

)

Table 6. DIP Switch Settings and Functions.

DIP Switch Function Off (default) On

1 Staging by number of zones

callin

Stages timer or thermostat controlled.

Stages controlled by number of zones

callin

2 ZMS low limit. 40°F 48°F

3 Purge mode timing. Three and one-half minutes. Two minutes.

4 Fan control during purge. Controlled by panel. HVAC equipment controlled

5 Control of W2 outpu.t Timer controlled. Controlled by W2 from thermostat,

6 Cool changeover from

thermostat.

Not using B on single Y thermostats; or usin

Using B on single Y thermostat.

conventional thermostats.

7 Heat changeover from

thermostat.

Not using O on single Y thermostats; or usin

Using O on single Y thermostat.

conventional thermostats.

8 Fan control in heat. Fan controlled by panel in cool

and HVAC e

ment in heat.

Panel in heat and cool controlling fan.

Table 7. LED Indicators.

LED Color Illuminated Not Illuminated Flashing

Heat Red Heat call No heat calls. High limit reached

Cool Green Cool call No cool calls. Low limit reached

Purge Amber Purge mode Not in Purge mode. ZMS failure

Idle Red No calls Call for heat, cool, or fan. Initial powerup without ZMS

wired

Fan Green Fan only call No fan only call. —

EM Heat Red Emergency Heat mode Not in emergency Heat mode. —

Zone 1,2,3 Zone

1,2,3

Green—open Red—closed Amber—movin

ers

dam

— —

some

68-0223-2 14

See Fig. 20 for TZ-TotalZone Zone Control Panel.

TZ-3 TOTALZONE® ZONE CONTROL PANEL

ZoneMAX™

TERMINALS

ZoneMAX™

TEMP

SETTING

ADD-A-

ZONE™

TERMINALS

STAGE

TIMER

HVAC

EQUIPMENT

TERMINALS

2 STAGE

EM HEAT

JUMPER

TEST JUMPERS

(NOT USED)

SYSTEM STATUS LED INDICATIORS

ZONE DAMPER LED INDICATORS

BOOT BUTTON

EMERGENCY HEAT SWITCH

ZONE-A- LONE™

SWITCH

REMOTE

ZONE-A-LONE™

CONTROL TERMINALS

TRANSFORMER TERMINALS

DIP SWITCHES FOR

SYSTEM CONFIGURATION

ZONE, THERMOSTAT & DAMPER

MOTOR TERMINALS

Fig. 20. TZ-3 TotalZone Zone Control Panel.

15 68-0223-2

RESETTABLE

FUSE

M13421

Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers.

TZ-3 TOTALZONE® ZONE CONTROL PANEL

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

68-0223-2 G.H. Rev. 9-01 www.honeywell.com/yourhome

Honeywell TZ-3 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

APPLICATION

FEATURES

SPECIFICATIONS

INSTALLATION

Mounting

Wiring

Wiring Diagrams (Fig. 3-17)

STARTUP AND CHECKOUT

OPERATION

Sequence of Operation

Single and Multi-Stage Operation

Thermostat Operation

Rebooting Microprocessor

Discharge Air Temperature Sensor

Zone-A-Lone Switch

Circuit Breaker Protection

Fan On In Heat

TotalZone Add-A-Zone Panels

TROUBLESHOOTING