Honeywell HZ311 TrueZONE Instruction Manual
Honeywell HZ311 TrueZONE
Honeywell HZ311 TrueZONE
Honeywell HZ311 TrueZONE Instructions
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Honeywell HZ311 TrueZONE Specifications
| Feature | Specification |
|---|---|
| Input Voltage | 18-30 VAC, 50/60 Hz |
| Transformer Requirement | 40 VA or more |
| Zone Panel Current Draw | 6.25 VA max (at 24 VAC) |
| Shipping Temperature Range | -20° to 150°F (-29° to 66°C) |
| Operating Temperature Range | -40° to 165°F (-40° to 74°C) |
| Humidity Rating | 5% to 90% RH non-condensing |
| Emissions Compliance | FCC Class B, part 15 requirements |
| Recommended Wiring | 18-gauge solid (not stranded) wire |
| Panel Dimensions (approx.) | 8.12 in. (206 mm) x 8 in. (203 mm) x 1.86 in. (47 mm) |
| Compatible Thermostats (Non-Programmable, Single-Stage) | TH5110D, TH3110D, T87N (various suffixes) |
| Compatible Thermostats (Programmable, Single-Stage) | TH8110U, TH6110D, TH4110D (various suffixes) |
| Recommended Zone Dampers (Spring-open/Power-closed) | Honeywell ARD (Round), ZD (Rectangular) Series |
| Recommended Zone Dampers (Power-open/Power-closed) | Honeywell MARD (Round), RRD (Round) Series |
| Recommended Bypass Damper | Honeywell SPRD (Static Pressure Regulating) Series |
| Max Damper VA per Zone (100°F/38°C Ambient) | 28.8 VA |
| Max Damper VA per Zone (160°F/71°C Ambient) | 16.8 VA |
| VA per ARD/ZD Series Damper | 8 VA |
| VA per MARD/RRD Series Damper | 2.5 VA |
| Supported ZD Series Damper Sizes | Even sizes from 6” x 6” up to 28” x 20” |
| Supported ARD Series Damper Sizes | 5-10” (1" increments), 12-18” (2" increments) |
| Supported MARD Series Damper Sizes | 5, 6, 8, 9, 10, 12, 14, 16, 18" |
| Supported RRD Series Damper Sizes | 5, 6, 7, 8" |
| Accessory: 40 VA Transformer | AT140A1042 |
| Accessory: 75 VA Transformer | AT175A1008 |
| Accessory: Discharge Air Temperature Sensor (DATS) | C7735A1000 |
| Accessory: Slave Damper Control Relay (SDCR) | Used for additional dampers or when exceeding max VA per zone |
| Kit (HZ311K) Inclusions | HZ311 zone panel, C7735A1000 DATS, AT140A1042 40 VA transformer |
Honeywell HZ311 TrueZONE Details
The Honeywell HZ311 TrueZONE panel is engineered for efficient control of up to three heating and one cooling (1H/1C) conventional zones. Its design prioritizes flexibility, allowing installation in various orientations near HVAC equipment on a wall, stud, roof truss, or even a cold-air return duct. The panel’s base acts as a convenient template for drilling mounting holes, simplifying the installation process for professionals.
Safety during installation is paramount, with strict adherence to applicable wiring codes and ordinances required. Installers are cautioned to disconnect power before commencing work and to complete all panel wiring before energizing the transformer, mitigating risks of electrical shock or equipment damage. This careful approach ensures both installer safety and system integrity.
Wiring flexibility is a key advantage, as cables can be neatly routed behind the panel or through integrated wire channels on its sides. For secure and organized installations, wiring anchors and cable ties are provided. The system also supports parallel wiring for multiple dampers within a single zone, streamlining complex installations.
The panel features a dedicated DS/BK terminal, a crucial element for systems utilizing variable-speed fans. When only one zone demands heating, cooling, or fan operation, this terminal activates the fan at a lower speed, effectively reducing airflow and optimizing energy consumption. This intelligent control contributes to both comfort and efficiency.
An integral part of the TrueZONE system's functionality is the Discharge Air Temperature Sensor (DATS). This sensor monitors supply air temperature to prevent equipment damage, ensuring the system operates within safe thermal limits. It's essential for maintaining optimal performance and protecting the HVAC unit from extreme conditions.
The HZ311 panel provides clear operational feedback through its intuitive LED display. LEDs indicate the current system status, such as whether heating or cooling is active. They also alert users to potential issues, including high or low temperature limits, or in cases of a DATS sensor failure, a short circuit, or an open circuit in the wiring.
For troubleshooting or during installation, the panel includes a convenient Purge Override button. Pressing this button immediately halts the purge cycle, saving valuable time. After the override, the panel intelligently awaits the next command for heat, cool, or fan, or reverts to an idle state if no calls are present, enhancing user control.
System compatibility is broad, supporting most thermostats that utilize R, W, Y, G terminals, though some models may require a common (C) wire. Furthermore, the panel can be configured for specialized setups, such as oil heating combined with air conditioning, by removing the RH-RC jumper and using a separate transformer for precise control.
The HZ311K kit variant offers a comprehensive package, including the HZ311 zone panel itself, a C7735A1000 Discharge Air Temperature Sensor (DATS), and an AT140A1042 40 VA transformer. This all-in-one solution simplifies procurement and ensures component compatibility right out of the box for quick setup.
Frequently Asked Questions (FAQs)
Can't find the answer you need? Here are some frequently asked questions about the Honeywell HZ311 TrueZONE, and we answer them below.
