Page 2 - SPECIFICATIONS
TZ-4 TOTALZONE® ZONE CONTROL PANEL 68-0259-1 2 SPECIFICATIONS Input Ratings: Voltage: 20-30 Vac, 50/60 Hz. Power: 13 VA, nominal. Output Ratings: 1.5A run, 200,000 cycles (30 Vac). 3.5 inrush. 1.5A run, 100,000 cycles (30 Vac) 7.5A inrush. Humidity Ratings: 5 to 90 percent RH, non-condensing. Temper...
Page 4 - INSTALLATION; Mounting; Identifying DIP Switches; Wiring; CAUTION
TZ-4 TOTALZONE® ZONE CONTROL PANEL 68-0259-1 4 INSTALLATION Mounting CAUTION Equipment Damage Hazard. Do not mount TZ-4 inside HVAC equipment Mount only on wall or on cold air return. Identifying DIP Switches This panel has two banks of DIP switches, DIP switch 4 (S4) and DIP switch 5 (S5), see Fig ...
Page 5 - Conventional Thermostats
TZ-4 TOTALZONE® ZONE CONTROL PANEL 5 68-0259-1 Wiring Diagrams (Fig. 3 and 4) Conventional Thermostats Conventional (RWYG) thermostats can be used to control conventional, multi-stage, and heat pump equipment. If the thermostat has a common terminal, it is wired to C on the panel, see Fig. 3. A mult...
Page 6 - Heat Pump Thermostats
TZ-4 TOTALZONE® ZONE CONTROL PANEL 68-0259-1 6 Fig. 4. PC8900 with W8900A,C Thermostat wiring. Heat Pump Thermostats Select a heat pump thermostat from Table 1. If the thermostat selected has a separate Y1 and W1 wire, as shown in Fig. 5, leave the zone O/B thermostat type jumper on the TZ-4 disconn...
Page 7 - Fig. 5. Heat pump thermostat with separate Y1 and W1; ARD or ZD Dampers; Fig. 6. Heat pump thermostat with single Y thermostat
TZ-4 TOTALZONE® ZONE CONTROL PANEL 7 68-0259-1 . Fig. 5. Heat pump thermostat with separate Y1 and W1 terminals and multi-stage thermostat wiring. If the thermostat selected from Table 1 has a single Y terminal for first stage heat and cool, wire as shown in Fig. 6. Wire either O or B (not both) fro...
Page 8 - cool single Y thermostat wiring.
TZ-4 TOTALZONE® ZONE CONTROL PANEL 68-0259-1 8 Fig. 7. Heat pump thermostat with 3-stage heat, 2-stage cool single Y thermostat wiring. Fig. 8. Wiring ARD or ZD damper to panel. Fig. 9. Wiring AOBD damper to panel. Fig. 10. Wiring two AOBD dampers in parallel. MARD Dampers or Dampers Using an ML6161...
Page 9 - Fig. 12. MARD or ML6161 Damper Motor Actuator using; Transformer; Discharge Air and Outdoor Temperature Sensors; Fig. 14. Wiring C7735A Discharge Air Temperature Sensor
TZ-4 TOTALZONE® ZONE CONTROL PANEL 9 68-0259-1 Fig. 12. MARD or ML6161 Damper Motor Actuator using R8222 Relay wiring. Transformer 1. Wire the transformers to the panel as shown in Fig. 13. One 40 VA, 24 Vac transformer controls up to five ARD or ZD dampers. 2. Connect the transformer to terminals R...
Page 10 - Conventional Equipment
TZ-4 TOTALZONE® ZONE CONTROL PANEL 68-0259-1 10 Fig. 15. TotalZone Add-A-Zone wiring. Conventional Equipment Wire the heating and cooling equipment to the equipment terminals on the TZ-4 Panel as shown in Fig. 16. Conventional Equipment: Set DIP switch 5-1 to on. Electric Furnaces: Set DIP switch 5-...
Page 11 - Heat Pump Equipment
TZ-4 TOTALZONE® ZONE CONTROL PANEL 11 68-0259-1 Fig. 16. Wiring conventional heating and cooling equipment to TZ-4 panel. Heat Pump Equipment See Fig. 17-22 for heat pump wiring. Refer to manufacturer instructions for additional wiring details and substitute the TZ-4 equipment terminals for the ther...
Page 12 - auxiliary and emergency heat.
TZ-4 TOTALZONE® ZONE CONTROL PANEL 68-0259-1 12 Fig. 17. Wiring single-stage heat pump with auxiliary heat. Fig. 18. Wiring single-stage heat pump with separate auxiliary and emergency heat. Two-speed Compressor: Wire the first stage compressor to Y1 and the second stage compressor to Y2. If the sam...
Page 13 - Water Source Heat Pumps; STARTUP AND CHECKOUT
TZ-4 TOTALZONE® ZONE CONTROL PANEL 13 68-0259-1 Fig. 21. Dual Fuel with single-stage heat pump and single- stage fossil fuel. Fig. 22. Dual fuel with two-stage heat pump and one- or two-stage fossil fuel. Water Source Heat Pumps Wire the equipment, as applicable, to the TZ-4 as shown in Fig. 17-19. ...
Page 14 - Purge Mode; Single and Multi-Stage Operation; Single Stage; THERMOSTAT-CONTROLLED STAGES
TZ-4 TOTALZONE® ZONE CONTROL PANEL 68-0259-1 14 Purge Mode At the end of every call for heat or cool, the panel enters a Purge mode that holds open the calling zone damper for two (default) or three and one-half minutes. During this time, the panel or the HVAC equipment can be configured to operate ...
Page 15 - HEAT PUMP OPERATION
TZ-4 TOTALZONE® ZONE CONTROL PANEL 15 68-0259-1 HEAT PUMP OPERATION The panel can control single- or two-stage heat pumps with or without auxiliary heat. Set DIP switch 5-1 to Off for heat pump control. This energizes equipment terminal Y1 on a call for first stage heat or cool. If second stage is c...
Page 16 - Thermostat Operation; HEAT PUMP THERMOSTATS WITH SINGLE Y OUTPUT; Emergency Heat Control; Rebooting Microprocessor
TZ-4 TOTALZONE® ZONE CONTROL PANEL 68-0259-1 16 Thermostat Operation Conventional Thermostats Conventional (R,W,Y,G) heat/cool thermostats can be used with the TZ-4 to control single or multi-stage gas, electric or oil systems and heat pumps with auxiliary heat. The panel can be configured to contro...
Page 17 - Circuit Breaker Protection; Dip Switch
TZ-4 TOTALZONE® ZONE CONTROL PANEL 17 68-0259-1 Use DIP switch 5-2 to change cooling limit settings: Zone-A-Lone Switch When the Zone-A-Lone switch is in the occupied (up) position and the OC/OC terminals are not used, the system functions as a zone control system. When switched to the unoccupied (d...
Page 18 - TROUBLESHOOTING; Symptom
TZ-4 TOTALZONE® ZONE CONTROL PANEL 68-0259-1 18 TROUBLESHOOTING Table 8. Troubleshooting. Symptom Possible Cause Action No LEDs are Illuminated No power to the board. Check for 24 Vac (±10%) across R and C. Transformers out of phase If 48 Vac across R and T1, reverse T1 and T2 wires. Shorted wire. C...
Page 19 - LED
TZ-4 TOTALZONE® ZONE CONTROL PANEL 19 68-0259-1 Table 9. 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. • DATS failure: slow flash...