Catalogue

OPTIONAL PAC-US444CN-1 THERMOSTAT INTERFACE
Optional MOS1 Outside
Air Sensor
• Monitors outside air temperature
and humidity.
• Displays on MHK1 Remote
Controller and MCCH1 Portable
Central Controller.
• Control up to 16 RedLINK
™
devices.
• Requires MHK1 per indoor unit.
• Monitor and control On/Off, Mode
and Set Temperature.
• Schedule override capability.
• Does not interfere with other
wireless devices.
• Displays outside air temperature and
humidity when used with MOS1 Outside Air Sensor.
Optional MCCH1 Portable
Central Controller
Our Thermostat Interface allows HVAC thermostats or input/output
controllers to control Mitsubishi Electric Cooling & Heating indoor
units through our CN105 connector. Any indoor unit that can be
controlled by an MHK1 can now be controlled by a third party
HVAC thermostat or input/output controller.
This allows Mitsubishi Electric systems to take advantage of the
capabilities of third party thermostats including but not limited
to: geo fencing, automatic scheduling, humidity control, weather
forecasting and more.
Our patent-pending algorithm allows the outdoor unit's INVERTER-driven compressor to vary its capacity for
greater energy savings. The preferred system setup is to use a conventional system control with two stages of
cooling and heating (W1, W2, Y1, and Y2) to provide personal comfort and energy savings. The interface can
also be setup to accept only one stage of cooling and heating (W1 and Y1).
The Mitsubishi Electric Thermostat Interface also allows for fan speed control. Third party thermostats or input/
output controllers can control the indoor unit's fan speed to three different levels: high, medium, and low.
Specifications
• Allows an HVAC Thermostat or I/O Controller to
control a Mitsubishi Electric Cooling & Heating
[M-Series or P-Series] indoor unit.
• One Thermostat Interface required per indoor unit.
• Indoor unit modes available: Cool, Heat, Fan, and
Off.
• Provides 3 input terminals to control fan speed
control: High, Medium, and Low.
• No addressing required.
• Connection: CN105 – Active IT Terminal.
• Dimensions: (H x W x D) 3.96 in x 3.17 in x 0.93 in.
• Thermostats Tested:
- Nest
®
- Honeywell
®
Lyric™
- INNCOM
®
by Honeywell
®
with High and Low
fan speed control.
• Terminal Block: 20-30 VAC Rated.
• Required: Active CN105 on Mitsubishi Electric
indoor unit control board.
• Required: HVAC Thermostat or I/O Controller (field
supplied).
• Required: 24VAC transformer needed (field
supplied).
MITSUBISHI ELECTRIC / M-SERIES / SPECIFICATIONS / 13