Zone Panel Professional Installation Guide
Honeywell HZ221 TrueZONE Table of Content
- Specifications and Accessories
- Installation
- Wiring
- Operation
- Warranty
Honeywell HZ221 TrueZONE Spesification
Input Ratings:
Voltage: 18-30 VAC 50/60 Hz transformer of 40 VA or more.
Current Draw:
Zone Panel: 6.25 VA max. All VA specifications at 24 VAC.
Wiring:
18–20-gauge solid (not stranded) wire.
Humidity Ratings:
5% to 90% RH non-condensing.
Temperature Ratings:
Shipping: -20° to 150°F (-29° to 66°C)
Operating: -40° to 165°F (-40° to 74°C)
Dimensions:
See below.
Emissions:
Complies with FCC Class B, part 15 requirements.
Specifications and accessories
RECOMMENDED THERMOSTATS, DAMPERS, AND ACCESSORIES
The following are suggested thermostats, dampers, and accessories for use with the TrueZONE panel.
Table 1. Recommended Thermostats
System |
Non-Programmable |
Programmable |
Heat Pump |
TH3210D, TH5220D, TH5320U |
TH4210D, TH6220D, TH8220U, TH8321U, YTH9421C |
Note: These thermostat models all have different four- digit suffixes. All versions of the model numbers listed above will work with the applications they're listed for.
Table 2. Recommended Dampers.
Type |
Honeywell Damper |
Round |
Rectangular |
Zone |
Spring-open/ power-closed |
ARD |
ZD |
Zone |
Power-open/ power-closed |
MARD/ RRD |
For recommended dampers call the Honeywell Zoning Hotline at 1-800-828-8367. |
Bypass |
Static pres- sure regulat- ing damper |
SPRD |
SPRD |
Table 3. Maximum Dampers.*
Ambient Temp. |
Maximum Damper VA per Zone |
100°F (38°C) |
28.8 |
160°F (71°C) |
16.8 |
* Use an SDCR (Slave Damper Control Relay) for addi- tional dampers.
Maximum dampers per panel is limited by transformer size.
Ensure transformer is large enough to power the panel (6.25 VA) and dampers.
Table 4. Accessories.
Accessory |
Description |
40 VA transformer* |
AT140A1042* |
75 VA transformer |
AT175A1008 |
Discharge Air Temperature Sensor (DATS)* |
DATS C7735A1000* |
SDCR |
Slave Damper Control Relay |
* Included in HZ221K kit.
Installation
- Mount the HZ221 TrueZONE panel near the HVAC equipment; locate it on a wall, stud, roof truss, or cold-air return. NOTE: The HZ221 TrueZONE panel can be mounted in any orientation; level it for appearance only
- Separate the zone panel cover from the base, and use the base as a template to drill mounting holes. 2 Attach the base to the wall, stud, roof truss, or duct with appropriate screws (not included).
- Install thermostats using instructions provided with thermostats. Connect thermostat to zone panel. To connect wire to the panel, strip approximately 1/4 in. of insulation and push wire into terminal. To release wire, press the button on top of the terminal. In retrofit applications, trim end of wire if not straight. If the thermostat has separate E and Aux terminals, install a jumper between the two terminals.
- Install dampers using instructions provided with dampers. Connect dampers to zone panel. NOTE: Multiple dampers can be wired in parallel.
- Connect DATS as shown.
- Connect equipment as shown. The DS/BK terminal is used with a variable-speed fan. Connect to the DS, BK, or ODD terminal on the furnace equipment. When only one zone calls for heat, cool, or fan, the DS/BK terminal operates the fan at low speed to reduce airflow.
- Connect transformer as shown.
The following diagram is an overall view of wiring for a heat pump system as depicted in steps 3–7.
Operation
The HZ221 TrueZONE panel contains an LED display that communicates system and zone status. The LEDs indicate the following information.
Table 5. LED Operation.
LED |
Description |
HEAT |
Solid when in heat. Blinking when DATS temperature exceeds 120°F (49°C) and calling for heat pump only. Blinking when DATS temperature exceeds 160°F (71°C) and calling for heat pump and auxiliary heat. At 150°F (66°C), auxiliary heat is disabled. |
COOL |
Solid when in cool. Blinking when 45°F (7°C) DATS low limit mode has been reached. |
FAN |
Solid when in operation. |
PURGE |
Solid when in purge (lasts 2 minutes 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. |
ZONE 1, 2 |
Solid green when open or opening. Solid red when closed or closing. Blinking amber when there is a damper or thermo- stat short circuit (circuit breaker trip). |
EM HEAT |
Solid when in Em Heat mode. |
Readmore and Download Honeywell HZ221 TrueZONE Manual PDF
Title |
: Download Honeywell HZ221 TrueZONE Manual PDF |
Format |
|
Pages |
: 8 Pages |
Language |
: English |
File Size |
: 3 MB |