HVAC Mechanical
Services & Controls Contractor

The Reliable Controls® MACH2™ is a high-performance, fully programmable and expandable BACnet® listed controller. The controller is ideal for large rooftop or mid-sized mechanical room applications.

The MACH2™ controller features 8 universal inputs and 8 universal outputs, and can be expanded into a 32-in/32-out controller. The MACH2™ ships standard with removable connectors, proportional output status LEDs, and support for 16 SMART-Sensors.

Features

Protocol BACnet® - MS/TP (EIA-485) - PTP (EIA-232) Reliable Controls® - Network (EIA-485/Token Bus) - PC & Modem (EIA-232) 8 Control-BASIC™ Programs User programmable control strategy in a readable, BASIC-like language 2500 bytes per program 8 Inputs Universal ranges DIP switch selectable 0-5 VDC, 4-20 mA, thermistor/dry contact 8 Outputs Universal ranges Expanable to 32 outputs using MACH2™ expansion cards Optional switch control (Hand/Off/Auto) HOA position feedback to RC-Studio® 128 Variables Selectable standard and custom ranges, as well as fixed or program-driven values

32 PID Loops Standard P, PI, or PID controllers for closed loop control 32 Trend Logs Each trend log stores 255 samples of 6 points at programmable time intervals 64 Runtime Logs Totals the on time and records the on/off times of a digital point Holds 200 samples 32 System Groups Allows related points to be grouped on one display 160 points per group 16 Weekly Schedules 4 on/off times for each weekday and 2 override days 8 Annual Schedules Days of the year designated as holidays 16 Variable Arrays Up to 128 elements in a one-dimensional array

128 User Passwords Protects access to system Each user is assigned a user name and an access level 5 Custom Tables For creating custom input ranges 16 Custom Units 8 analog engineering units 8 digital engineering units SMART-Net™ Port Networks up to 16 SMART-Sensors™ 127 Network In Points 127 Network Out Points Real-Time Clock Warranty Industry Recognized 5 Year Certification BTL listed (B-BC & B-ASC) ISO 16484-5 UL916 Open Energy Management Equipment Certified UL864 UUKL Certified

Tech Specs

Processor 40 mHz, high performance 16-bit embedded microcontroller Memory 512k NV RAM user database 128k Flash EEPROM for operating system firmware and controller configurations Supply Voltages 24 VAC/VDC ±15% 24 VA maximum Communications EIA-485 @ 76.8 kbps EIA-232 PC or Modem SMART-Net™ (16 SMART-Sensors™ max) Universal Inputs 8 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 universal outputs 8 bit D/A converter Analog: 0-12 VDC Digital: 0 or 12 VDC Manual ON provides 14.1 VDC LED indicator (glows proportionally) Output power: 75 mA @ 12 VDC 24 VAC over voltage and short protection Real-Time Clock ±1 second per day Memory/RTC Backup 72 hour battery backup Optional battery backup for 1 year lithium (offline) Dimensions 21.5 cm L x 14 cm W x 3.81 cm H (8.5" L x 5.5" W x 1.5" H) Mounting #6 clearance holes on 20.3 cm L x 12.3 cm W(8" L x 4.8" W) Weight 0.4 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

Expansion

[MACH2™ Expansion Card] The Reliable Controls® MACH2™ expansion card is a general purpose, expansion card designed for use with the MACH2™ BACnet® controller. Each MACH2™ expansion card features 8 universal inputs and 8 universal outputs, and requires 24 VAC/VDC power. A maximum of 3 expansion cards can be connected to a single MACH2™ controller.

Enclosures

	[Medium-Large Sized Enclosure] (ENC-40X76) CSA-approved and designed to accommodate one MACH-Global™ controller and four I/O cards or four MACH™ controllers.			[Medium-Sized Enclosure] (ENC-40X30) A NEMA rated product manufactured by Hoffman Schroff that accommodates up to two MACH1™ controllers or one MACH2™ controller with a MACH2x™ expansion card.
	[Small-Sized Enclosure (ENC-30X30)] A NEMA rated product manufactured by Hoffman Schroff that accommodates up to two MACH1™ controllers or one MACH2™ controller with a MACH2x™ expansion card.

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