Lennox Wired Controller Installation And Operation Instructions Manual

1

©2017 Lennox Industries Inc.

Dallas, Texas, USA

INSTALLATION/
OPERATION
INSTRUCTIONS

CONTROLS

507561-03
5/2017
Supersedes 8/2015

This manual must be left with the
owner for future reference.

WARNING

!

Improper installation, adjustment,
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.

Frequent changes to operating
mode may cause system
malfunction. Allow at least one
minute between mode changes to
allow the system to stabilize.

IMPORTANT!

Lennox Mini-Split
Systems Wired Indoor
Unit Controller

2

Shipping and Packing List

Package 1 of 1 contains;

1 – Wired Controller
1 – Installation and operation manual
1 – Cable with connector – 20 ft. (6 m)

General

The M0STAT61Q-1 mini-split wired controller is a wired local controller for Lennox
mini-split indoor units.

Requirements

Turn off power supply before beginning installation. Use this controller only as de­scribed in this manual. Do not install the controller on outside walls (where there is
unconditioned space on opposite side of wall) or in locations where direct sunlight
may be present.

Installation

CAUTION

!

Clean controller using a clean,
damp cloth. Do not spray cleanser
on or around controller.

CAUTION

!

Do not install controller in areas
where heavy oil, vapor, or gases
containing sulfur may exist or the
controller may be damaged.

Do not operate controller with wet
hands.

WARNING

!

Be sure that power supply has
been turned off before beginning
installation.

WARNING

!

3

IMPORTANT!

Read all of the information in this
manual before using this controller.
All wiring must conform to local and
national building and electrical codes
and ordinances. This is a 5 VDC
controller. Do not install on voltages
higher than 5 VDC.

IMPORTANT!

The provided cables must be used.
Do not use excessive force while
pulling the cable or when making the
connections.

• This manual provides the installation
instructions for this controller. Refer
to the included wiring diagram to con­nect the controller to the indoor unit.

• The controller uses low voltage. Keep
a minimum distance of 12” (305 mm)
between low voltage control wire and
high voltage power wires.

• Ground the shielded control wiring.

• Do not use a megger to test insula­tion.

• The controller cable length should not
exceed 40 ft. (12 m).

4

2. Remove the cover from the wall plate using a at-head screwdriver. See gure 2.

3. Mount the wall plate as appropriate for your application. See gure 3.

NOTE – Provide for future maintenance by allowing enough slack in the wiring to
allow the controller to be removed from the wall if needed.

Figure 2. Remove cover from wall plate.

Slots

Figure 1. Wiring Connections

Indoor unit
display board

5-conductor wire

5-conductor wire

1. Connect controller to indoor unit main control board by inserting the plug of the
5-conductor cable into the socket provided at the indoor unit