Honeywell Home HZ322 TrueZONE

Specifications

Input Ratings: Voltage: 18 VAC - 30 VAC, 50 Hz / 60 Hz transformer of 40 VA or more.

Current Draw: Zone Panel: 7.5 VA max. THM4000R Wireless Adapter: 2 VA max. All VA specifications at 24 VAC.

Wiring: 18- or 20-gauge solid (not stranded) wire.

Humidity Ratings: 5% to 90% RH non-condensing.

Temperature Ratings:
Shipping: -20°F to 150°F (-29°C to 66°C)
Operating: -40°F to 165°F (-40°C to 74°C)

Dimensions: See Figure 1 for panel dimensions.

Emissions: Complies with FCC Class B, part 15 requirements.

Figure 1 illustrates the HZ322 TrueZONE panel dimensions in inches (mm).

Need Help? For assistance, visit customer.resideo.com or call the Zoning Hotline at 1-800-828-8367.

System Compatibility

The HZ322 TrueZONE panel controls:

• Conventional gas, oil, or electric forced-air systems up to 2 stages heat and cool.
• Heat pump systems with single stage compressor and auxiliary heat, and two stage heat pumps with no auxiliary heat.
• 2 or 3 forced-air zones with wired thermostats, or wireless thermostats using the THM4000R wireless adapter.

Refer to the TrueZONE Panel Frequently Asked Questions (Form 50-9694) for operating details. Visit customer.resideo.com.

Accessories

Recommended Thermostats:

* For RedLINK™ wireless devices, a THM4000 is required.

Recommended Dampers:

Recommended Commercial Dampers:

Maximum Dampers:

* Use an SDCR (Slave Damper Control Relay) for additional dampers. Maximum dampers per panel is limited by transformer size. Ensure transformer is large enough to power the panel (7.5 VA) and dampers.

Other Accessories:

* Included in HZ322K kit.
** Use an SDCR (Slave Damper Control Relay) to add additional dampers to a zone to surpass the maximum Damper VA rating per Zone.
*** For RedLINK™ wireless devices, a THM4000 is required.

Mounting

1. Mount the HZ322 TrueZONE panel near the HVAC equipment. It can be located on a wall, stud, roof truss, or cold-air return. The panel can be mounted in any orientation; level it for appearance only.
2. Separate the zone panel cover from the base. Use the base as a template to drill mounting holes. Attach the base to the wall, stud, roof truss, or duct with appropriate screws (not included).

Figure 2 shows the mounting location options. Figure 3 illustrates separating the panel cover and using the base as a template for mounting holes. The diagram indicates using two screws for attaching to a stud or roof truss, and four screws for duct or drywall/plaster installation.

Wiring

CAUTION: Voltage Hazard. Can cause electrical shock or equipment damage. Disconnect power before beginning installation. Wire entire panel before applying transformer power.

Follow the wiring steps provided. Wiring will vary depending on the equipment. Refer to page 5 for conventional systems and page 6 for heat pump systems. Wiring must comply with applicable codes, ordinances, and regulations. Use the provided wiring diagrams to connect the zone panel to thermostats and dampers.

Install thermostats according to the instructions provided with them. Connect thermostats to the zone panel by stripping approximately 1/4 inch of insulation from the wire and pushing it into the terminal. To release a wire, press the button on top of the terminal. In retrofit applications, trim the end of the wire if it is not straight.

Figure 4 shows how to connect wires to the panel terminals. Figure 5 highlights the wire management features of the HZ322, including channels on the sides and a wiring anchor with a cable tie.

Install dampers according to the instructions provided with them. Connect dampers to the zone panel. Multiple dampers can be wired in parallel.

Figure 6 provides wiring diagrams for different damper types: ARD or ZD damper (spring-open, power-closed) and RRD or MARD damper (power-open, power-closed).

Connect DATS (Discharge Air Temperature Sensor) as shown in Figure 7. Refer to Table 5 in "Advanced Configuration" on page 8 for high and low limit settings. For DATS placement in the supply duct and troubleshooting, see the Discharge Air Temperature Installation Instructions (Form Number 69-1521).

Connect equipment as shown in Figure 8, which also includes diagrams for conventional systems (Figure 11) and heat pump systems (Figure 12).

Conventional System Wiring: Figure 11 provides an overall view of wiring for a conventional system.

Heat Pump System Wiring: Figure 12 shows wiring for a heat pump with electric auxiliary heat. Note that conventional thermostats can be used, but auxiliary heat control requires heat pump thermostats. The diagram illustrates using a heat pump thermostat.

Wireless Device Wiring: If using a wireless thermostat, Portable Comfort Control, wireless outdoor air temperature sensor, or other RedLINK™ wireless device, wire the THM4000 Wireless Adapter Module to the ABCD terminals on the zone panel (Figure 9). CAUTION: Only the THM4000R can be wired to the A-B-C-D terminals on the HZ322. Wiring other modules like THM5320R or THM5421R to these terminals will cause damage.

Connect a dedicated transformer as shown in Figure 10.

Important Notes on Wiring:

• For oil heat with a separate transformer for cooling, remove the jumper. For other systems, leave the jumper in place and wire to the HVAC R terminal with 18-gauge solid wire.
• The DS/BK terminal is for variable-speed fans. If the HVAC equipment has a DS, BK, ODD, or DHUM terminal, wire it to the HZ322 DS/BK terminal. This terminal energizes the blower fan at normal speed when 2 or 3 zones call for cooling. When only 1 zone calls for cooling, the fan runs at a reduced speed. Refer to HVAC equipment manufacturer instructions.
• CAUTION: Never wire a THM5320R or THM5421R Equipment Interface Module to the A-B-C-D terminals on the HZ322 zone control panel. Doing so will damage the components.
• For thermostats with separate O and B terminals, attach O for cool changeover or B for heat changeover.
• If HVAC equipment uses the same source of heat for auxiliary and emergency heat, jumper W1 and W2.
• ABCD terminals are for the THM4000R wireless adapter only.

Configuration

To enter Configuration mode, press the Mode button until the Config LED lights up. Use the Back and Next buttons to navigate through the settings. Use the Left and Right arrow buttons (Adjust Setting) to scroll through choices. Pressing Next confirms the selection and moves to the next menu item.

Figure 13 provides a flowchart for basic zone panel configuration. Figure 14 illustrates the configuration interface with buttons for Back, Adjust Setting, and Next.

Basic Configuration Options:

• Cool Stages: 0, 1, or 2
• Heat Stages: 0, 1, or 2
• Aux Heat Enabled: [YES] or NO
• RF Enabled: [YES] or NO (Set to YES if using wireless thermostats and THM4000R adapter)
• Zones Installed: 1, 2, or 3
• Zone 1 Tstat Type: [WIRED] or RF (for wireless)
• Stage 2 Control: [OFF], TIMER, % ZONES, or OFF
• Advanced Config: [NO] or YES
• Save Changes: [NO] or YES

Notes on Configuration:

• The panel does not ask about Aux Heat when 2 compressor stages are selected. The HZ432 is required for a 3H/2C heat pump.
• RF means "Wireless Thermostat".
• Options 1, 2, 3 are available for various settings.
• The system asks for each wired zone's thermostat type. Options for heat pump thermostats are HT다음-O (for heat pump with O for changeover) and HT다음-B (for heat pump with B for changeover). Options for conventional thermostats include CONVENTIONAL and NON-HEAT PUMP THERMOSTATS.

Advanced Configuration:

Table 6 details the advanced configuration settings, including menu names, titles, options, descriptions, and notes. These settings allow for fine-tuning of system operation, such as fan control during heat, purge timers, damper behavior during purge, auto changeover delays, and Discharge Air Temperature (DATS) sensor settings.

LED Operation:

The HZ322 panel features LEDs that indicate system and zone status. Table 7 describes the function of each LED:

• HEAT 1/2: Indicates stage 1 or 2 heating. Blinking indicates lockout due to DATS or OT.
• COOL 1/2: Indicates stage 1 or 2 cooling. Blinking indicates lockout due to DATS.
• PURGE: Indicates purge cycle. Blinking indicates DATS sensor failure or shorted/open wires. Will blink for 3 minutes at power-up if DATS is not present.
• FAN: Solid when there is a call for the fan.
• EM HEAT: Solid when in emergency heat mode. Emergency heat only runs when both HEAT and EM HEAT LEDs are lit.
• ZONE 1, 2, 3: Solid green when open/opening. Solid red when closed/closing. Blinking amber indicates damper VA exceeding limits or a damper/thermostat short circuit.

Figure 16 shows the LED indicators on the HZ322 panel.

For users preferring French or Spanish labels, they are available in Form 69-2199FS.

Connect Wireless Devices

To connect wireless devices, press the Mode button until the Wireless LED lights up. The TrueZONE must be configured for wireless devices first. Press Next to add devices. While the display shows "Press Connect" and "Exit" screens, push the Connect button(s) on the wireless device(s) or follow the device's instructions. Press Next to exit.

Figure 15 illustrates the process of connecting wireless devices.

Checkout

To enter Checkout mode, with the zone panel cover removed, press the Mode button until the Checkout LED lights up. Use the Adjust Setting and Next buttons to navigate through the checkout menu as listed in Table 8.

Steps 3-10 cycle through heating, cooling stages, and damper open/close operations to verify equipment and damper functionality. These steps energize the equipment and damper terminals.

Steps 11-14 verify thermostat operation and wiring by making thermostats call for heat or cool and observing the active wires on the LCD screen. This helps troubleshoot which thermostat terminals are energized.

Checkout Steps:

* Wireless Outdoor Sensor C7089R and Wireless Adapter THM4000R required for OT Temperature.
** Discharge Air Temperature Sensor C7735A required to display Discharge Air Temperature.

Warranty

Resideo warrants this product, excluding the battery, to be free from defects in workmanship or materials under normal use and service for a period of five (5) years from the date of first purchase by the original purchaser. If the product is found defective during the warranty period due to workmanship or materials, Resideo will repair or replace it at its option.

To obtain warranty service:

1. Return the product, with a bill of sale or other dated proof of purchase, to the place of purchase.
2. Alternatively, call Resideo Customer Care at 1-800-828-8367. Customer Care will determine if the product should be returned to Resideo Return Goods, 1985 Douglas Dr. N., Golden Valley, MN 55422, or if a replacement can be sent directly.

This warranty does not cover removal or reinstallation costs. It does not apply if Resideo shows that the defect was caused by damage that occurred while the product was in the consumer's possession.

Resideo's sole responsibility is to repair or replace the product as stated. RESIDEO SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING INCIDENTAL OR CONSEQUENTIAL DAMAGES, resulting directly or indirectly from any breach of warranty, express or implied, or any other product failure. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply.

This warranty is the only express warranty Resideo makes. The duration of any implied warranties, including those of merchantability and fitness for a particular purpose, is limited to the five-year duration of this warranty. Some states do not allow limitations on how long an implied warranty lasts, so this limitation may not apply.

This warranty grants specific legal rights, and you may have other rights that vary by state. For warranty questions, write to Resideo Customer Care, 1985 Douglas Dr, Golden Valley, MN 55422, or call 1-800-828-8367.