The TZ-4 TotalZone Zone Control Panel is a control panel that controls single-stage, multi-stage, conventional or heat pump heat/cool equipment. It controls 2, 3 or 4 zones, and is expandable up to 32 zones with the optional TotalZone® Add-A-Zone™ Four Zone Control Panel.
The TZ-4 TotalZone® Zone Control Panel controls single‑stage, multi‑stage, conventional, heat‑pump, or dual‑fuel HVAC equipment. It can manage 2‑4 zones directly and be expanded to 32 zones with optional Add‑A‑Zone panels.
The manual provides detailed specifications, wiring diagrams, installation steps, startup procedures, and troubleshooting information such as LED indicator meanings and safety cautions.
| Input Voltage | 20‑30 Vac, 50/60 Hz |
|---|---|
| Input Power | 13 VA (nominal) |
| Output Rating (high‑cycle) | 1.5 A run, 200,000 cycles (30 Vac), 3.5 A inrush |
| Output Rating (low‑cycle) | 1.5 A run, 100,000 cycles (30 Vac), 7.5 A inrush |
| Humidity Rating | 5 % to 90 % RH, non‑condensing |
| Operating Temperature | -40 °F to 150 °F |
| Shipping Temperature | -20 °F to 120 °F |
| Dimensions | 10‑3/4 in. H × 12‑3/4 in. W × 1‑7/8 in. D |
| Wire Gauge | 18‑gauge for all equipment and system connections |
The TZ‑4 controls 2, 3 or 4 zones and can be expanded up to 32 zones with optional Add‑A‑Zone panels.
The panel operates on 20‑30 Vac at 50/60 Hz.