©2019 Lennox Industries Inc.
This manual must be left with the
owner for future reference.
WARNING
Improper
installation,
alteration, service or maintenance can
cause property damage, personal injury or
loss of life.
Installation and service must be performed
by a licensed professional HVAC installer
(or equivalent) or service agency.
Specifications
Input voltage
Ambient temperature
Ambient humidity
Dallas, Texas, USA
adjustment,
5 VDC
23~110°F (-5~43°C)
RH40%~RH90%
INSTALLATION/
OPERATION
INSTRUCTIONS
M0STAT64Q-1 Indoor Unit
Programmable
Controller
CONTROLS
507644-02
3/2019
Supersedes 507644-01
IMPORTANT
Frequent changes to operating mode may
cause system malfunction. Allow at least
one minute between mode changes to
allow the system to stabilize.
Shipping and Packing List
Package 1 of 1 contains;
1 – Wired Controller
1 – Lithium battery
3 – Screws (mount to wall)
2 – Screws (mount to J-box)
2 – Plastic spacers (J-box)
1 – Connection Cable A with connector for all
indoor units
1 – Connection Cable B with connector for
MMDA/B, MCFA/B, M22A and M33A/B
indoor units
1 – Connection Cable C with connector for
MWMA/B indoor units
1 – Installation and operation manual
1