HVAC Mechanical
Services & Controls Contractor

The Reliable Controls® MACH-Zone™ is a fully programmable, versatile BACnet® listed controller designed for unitary control applications. The MACH-Zone™ controller is ideal for small rooftop and heat pump applications.

The controller features 4 universal Inputs and 4 Universal Outputs with optional triac outputs. The MACH-Zone™ ships standard with removable connectors and support for 4 SMART-Sensors.

Features

Protocol BACnet® - MS/TP (EIA-485) Reliable Controls® - Network (EIA-485/Token Bus) 4 Control-BASIC™ Programs User programmable control strategy in a readable, BASIC-like language 2000 bytes per program 4 Inputs Universal ranges Jumper selectable 0-5 VDC, 4-20 mA, thermistor, and dry contact 4 Outputs Universal ranges (base model) Scalable 0-12 VDC, 75 mA (max.) Single stage triac Dual stage triac 48 Variables Selectable standard and custom ranges, as well as fixed or program-driven values

4 PID Controllers Standard P, PI, or PID controllers for closed loop control 2 Trend Logs Each trend log stores 72 samples of 6 points at programmable time intervals 4 Runtime Logs Totals the on time and records the on/off times of a digital point Holds 48 samples 2 System Groups Related points can be grouped in one display 50 points per group 1 Weekly Schedules 4 on/off times for each weekday and 2 override days

5 Custom Tables For creating custom input ranges and Control-BASIC lookup tables SMART-Net™ Port Networks up to 4 SMART-Sensors™ 32 Network In Points 32 Network Out Points Warranty Industry Recognized 5 Year Certification BTL listed (B-ASC) ISO 16484-5 UL916 Open Energy Management Equipment Certified FCC CFR47 Part 15/B UL864 UUKL Certified

Tech Specs

Processor 25 mHz, high performance 16-bit embedded microcontroller Memory 32k RAM 128k Flash EEPROM operating system firmware and controller configurations Supply Voltages 24 VAC/VDC ±15% 24 VA maximum Communications EIA-485 @ 76.8 kbps SMART-Net™ (4 SMART-Sensors™ max) SETUP-Tool™ SETUP-Tool™ used for configuration Universal Inputs 4 universal inputs 10 bit A/D convertor Analog: 0-5 VDC, 4-20 mA, thermistor Digital: dry contact Impedence: 15k Ω on 0-5 VDC range 250 Ω on 4-20 mA range 10k Ω on thermistor range 40 Hz pulse counting (supports flow meters) 24 VAC over voltage protection

Universal Outputs 8 bit D/A converter Analog: 0-12 VDC Digital: 0 or 12 VDC Output power: 75 mA @ 12 VDC 24 VAC over voltage and short protection Triac Outputs 24 VAC @ 0.5 A Common return Dimensions 15.5 cm L x 8.8 cm W x 2.5 cm H (6.25" L x 3.5" W x 1.0" H) Weight 0.3 kg (1.0 lb.) Ambient Limits Operating: 0 ºC to 40 ºC (32 ºF to 104 ºF) Shipping: -20 ºC to 60 ºC (-40 ºF to 140 ºF) Humidity: 10% to 90% RH non-condensing

Application Diagram

Wiring Diagram

PDF Sheet