Maximum dampers per panel is limited by transformer 1-55/64 size. 8 (203) (47) Ensure transformer is large enough to power the panel M24742A HZ221 TrueZONE panel dimensions in in. (mm). (6.25 VA) and dampers. Table 4. Accessories. Accessory Description 40 VA transformer* AT140A1042*...
Installation Guide iNsTallaTiON Mount the HZ221 TrueZONE panel near the HVAC equip- ZONE PANEL (WALL MOUNT) ment; locate it on a wall, BYPASS DAMPER stud, roof truss, or cold-air DATS return. (ALTERNATE LOCATION) RETURN DUCT NOTE: The HZ221 TrueZONE panel can be ZONE PANEL mounted in any orientation;...
HZ22 TrueZONE WiriNg Wiring must comply with applicable codes, ordinances, and regulations. CAUTION: Voltage Hazard. Can cause electrical shock or equipment damage. Disconnect power before beginning installation. Wire entire panel before applying transformer power. Install thermostats using instructions provided with thermostats. Connect thermostat to zone panel.
Page 6
Installation Guide WiriNg HANDLER 24 VOLT TRANS. Connect equipment as shown. AUX/EM HEAT E/Aux FAN RELAY The DS/BK terminal is used with a variable-speed fan. DS/BK HEAT PUMP 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 REVERSING to reduce airflow.
HZ22 TrueZONE 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. Description HEAT Solid when in heat. Blinking when DATS temperature exceeds 120°F (49°C) and calling for heat pump only.
WarraNTy Honeywell warrants the products in this catalog (except those parts designated on Honeywell’s price lists as not covered by this warranty) to be free from defects due to workmanship or materials, under normal use and service, for the following warranty periods. Honeywell VisionPRO®, Commercial VisionPRO , FocusPRO®, PRO...