Generic I/O Control Panel Technical Specifications
McQuay International certifies that its equipment will conform to this drawing and McQuay's
published specifications, subject to its published warranty. Purchaser must determine that the
equipment is fit and sufficient for the job specifications. No change to this drawing may be made
unless approved in writing by McQuay. www.mcquay.com
MicroTech® III Control Panel
Description
The MicroTech III Generic I/O Panel provides configurable
inputs and outputs for use in conjunction with the McQuay
Delivered VAV System. This panel communicates via
BACnet® MS/TP and can be set up and monitored through
the VAV System’s touch screen controller. With the
MicroTech III Generic I/O Panel, the Delivered VAV System
can be configured to provide hardwired signals to, and/or
monitor inputs from, third part devices and sensors.
Use the MicroTech III Generic I/O Panel along with ancillary
control features in the Delivered VAV System to create
custom control sequences unique to your building.
Features
Power supply AC 24 V or DC 24 V
8 configurable analog I/Os
o 4 analog outputs 10V or 25mA
o 1 analog output 10V
o 3 analog inputs 10V, 25mA, NI1000, PT1000,
I-R2500, NTC10K, or NTC100K
3 analog inputs NTC 10k or NTC 100k
DC 24 V and DC 5 V power supply for active sensors
on board
2 digital inputs for potential-free contacts
2 digital inputs galvanically isolated AC 24 V
2 digital inputs galvanically isolated AC 115V
8 relay outputs (6 NO contacts, 2 relays switching type)
2 triac outputs (AC 24 V)
SD card interface for application and operating system
upgrade
Operating temperature: -4°F to 140°F (-20°C to 60°C)
Specifications
Controller
Inbuilt HMI:
LCD with white backlight (144 x 64 dots)
5 line by 22 characters display
Roll-and-push knob navigation, 3 function buttons
Main Controller:
Dimensions: 207 x 110 x 79 mm
Housing: Plastic, light-grey RAL 7035
I/O Connectors:
Plug- in terminals: clamp
Grid: 5mm
AWG min/max: 26/14
Power Requirements:
15VA plus loads
BACnet MS/TP Communication Card - RS-485 (EIA-485):
Bus connection/electronics: galvanically isolated
Bus connection: A+, B- REF (3 wires)
Control Panel
Panel:
IP65, NEMA 4 rugged plastic
Network Connection:
Shielded twisted pair wire for BACnet connection
Power:
120V AC wall source
Phase: 1
Frequency: 60Hz
Terminal type: strip wire spring terminal
AWG min/max: 22/12
Transformer:
120/24VAC, 75VA
Dimensions:
15.3 in. (389 mm) Wide x 17.36 in. (441 mm)
High x 6.25 in. (159 mm) Deep