Installation Instructions for
Model M30
CONTENTS
Preparations ...........................................
Thermostat Features ..............................
Removing Old Thermostat ......................
Mounting and Wiring ...............................
Set Heat Anticipator ................................
New Thermostat Operation .....................
Specifications .........................................
Troubleshooting ......................................
PREPARATIONS
THERMOSTAT FEATURES
REMOVING OLD THERMOSTAT
Before removing wires from old thermostat’s switching subbase, label
each wire with the terminal designation it was removed from.
1. Remove Old Thermostat: A standard heat thermostat consists
of two basic parts:
a. The cover, which may be either a snap-on or hinge type.
b. The base, which is removed by unscrewing the mounting
screws that hold it on the wall or adaptor plate.
Make a note here of the anticipator setting on the
old thermostat for future reference and use in step 5.
The heat anticipator pointer, if adjustable, will be set at one of a series
of numbers representing the current rating of the primary control in
your furnace. The number will be one of the following: .2, .4, .8, etc.
or 0.2, 0.4, 0.8, etc.
If no heat anticipator/indication is showing, do not be concerned;
move on to the next step.
PART NO. 37-7270B
1546
Failure to follow and read all instructions carefully before
installing or operating this control could cause personal
injury and/or property damage
Assemble tools required as shown below.
HAND OR POWER
DRILL WITH 3/16 INCH
DRILL BIT, IF NEEDED
To prevent electrical shock and/or equipment damage,
disconnect electrical power to the system at the main fuse
or circuit breaker until installation is complete.
YOUR THERMOSTAT REPLACES
Description
Standard Heating & Cooling Systems - 4 or 5 wires No
Standard Heat Only Systems Ye s
Millivolt Heat Only Systems - Floor or Wall Furnaces Ye s
Standard Central Air Conditioning No
Gas or Oil Heat Ye s
Electric Furnace Ye s
Hydronic (Hot Water) Zone Heat - 2 Wires Ye s
Hydronic (Hot Water) Zone Heat - 3 Wires No
Heat Pump No
Baseboard Electric Heating or Line Voltage
(120 or 240 Volt)
No
COVER
TING SCREWS
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