Operation, Checkout, Hz322 truezone – Honeywell TRUEZONE HZ322 User Manual

Page 11

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HZ322 TrueZONE

9

69-299—0

The HZ322 TrueZONE panel contains an LED display that communicates system and
zone status. The LEDs indicate the following information.

OpEraTiON

M28026

HZ322

HEAT 1

HEAT 2

COOL 1

COOL 2

FAN

PURGE

EM HEAT

ZONE 1

ZONE 2

ZONE 3

EMERGENCY

HEAT

Much of this information, as well as configuration information, is listed on the label
on the inside of the HZ322 cover. For users who prefer French or Spanish labels,
they are provided in form 69-2199FS. Cut them out and attach them to the inside of
the HZ322 cover.

Table 6. LED Operation.

LED

Description

HEAT 1

Solid when in heat stage 1. Blinking when DATS high limit mode has

been reached.

HEAT 2

Solid when in heat stage 2. Blinking when stage 2 locked out due to

DATS or OT.

COOL 1

Solid when in cool stage 1. Blinking when DATS low limit mode has

been reached.

COOL 2

Solid when in cool stage 2. Blinking when stage 2 locked out due to

DATS.

PURGE

Solid when in purge (at power-up and after a call for heat or cool).

Blinking when the DATS sensor has failed, or the wires are shorted or

open. Will blink for 3 minutes at power-up if DATS is not present.

FAN

Solid with a call for fan.

EM HEAT

Solid when in emergency heat mode. This light does not indicate a call

for heat. Emergency heat will only run when both HEAT and EM HEAT

are lit.

ZONE 1, 2, 3 Solid green when open or opening. Solid red when closed or closing.

Blinking amber when there is a damper or thermostat short circuit (cir-

cuit breaker trip).

Fig. 16

To enter Checkout, with the zone panel cover off, press the Mode button until the Check out LED lights up. Use the
Adjust Setting and Next buttons to work through the checkout menu as listed below. See the Configuration section on
page 7 for instructions on using these buttons.
Steps 3–10 cycle through heating and cooling stages and open and close dampers to verify proper operation.
Steps 11–14 verify thermostat operation and correct wiring. This is done by making the thermostats call for heat or
cool and viewing the active wires as displayed on the LCD screen.

Table 7. Checkout.

Checkout Step

Line 1 display

Line 2 Display

Notes:

1.

Display shows OT

OT SENSOR VAL

current OT temp (dynamic)

All zone dampers open, all other relays OFF.

2.

Display shows DATS

DAT SENSOR VAL

current DATS (dynamic)

3.

Heat stages test

TEST HEAT

[OFF] 1 2

Heat turns on (fan also turns on if configured for

fan on in heat).

4.

EM Heat stages test

TEST EMERG HEAT

[OFF] 1 2

Emergency heat turns on (fan also turns on).

5.

Cool stages test

TEST COOL

[OFF] 1 2

Cooling turns on (fan also turns on).

6.

Fan Test

TEST FAN

[OFF] ON

Fan cycles on and off.

7.

Damper 1 test

TEST Z1 DAMPER

[OPEN] CLOSED

Cycles damper position with fan on.

8.

Damper 2 test

TEST Z2 DAMPER

[OPEN] CLOSED

Cycles damper position with fan on.

9.

Damper 3 test

TEST Z3 DAMPER

[OPEN] CLOSED

Cycles damper position with fan on.

10. View Tstat1 inputs

ZONE1 STAT INPTS

Displays active Tstat1 terminals or displays wire-

less thermostat operation

Tests thermostat wiring with HVAC off.

11. View Tstat2 inputs

ZONE2 STAT INPTS

Displays active Tstat2 terminals or displays wire-

less thermostat operation

Tests thermostat wiring with HVAC off.

12. View Tstat3 inputs

ZONE3 STAT INPTS

Displays active Tstat3 terminals or displays wire-

less thermostat operation

Tests thermostat wiring with HVAC off.

13. Exit checkout mode?

EXIT CHECKOUT?

(NEXT = EXIT)

14. Exiting checkout mode

EXITING CHECKOUT

CHECkOuT

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