Set At
Installation Manual
Thermostat Application Guide
Description
Gas or Oil Heat
Electric Furnace
Heat Pump (No Aux. or Emergency Heat)
Heat Pump (With Aux. or Emergency Heat)
Multi-Stage Systems
Heat Only Systems
Heat Only Systems - Floor or Wall Furnace
Cool Only Systems
Millivolt
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Power Type
Battery Power
Hardwire (Common Wire)
Hardwire (Common Wire) with
Battery Backup
Table of Contents
Specifications
Installation Tips
Thermostat Quick Reference
Wiring
Wiring Diagrams
Technician Setup
Page
A trained, experienced
technician must install this
product.
Carefully read these
instructions. You could damage
this product or cause a
hazardous condition if you fail
to follow these instructions.
Una version en español de este
manual se puede descargar en
la pagina web de la compañia.
Rev. 1841
U.S. Registered Trademark. Patents pending
Copyright 2018 All Rights Reserved.
Specifications
The display range of temperature ... 41˚F to 95˚F (5˚C to 35˚C)
The control range of temperature.... 44˚F to 90˚F (7˚C to 32˚C)
Swing (cycle rate or differential) ...... Heating is adjustable from 0.2˚ to 2.0˚
Cooling is adjustable from 0.2˚ to 2.0˚
Power source ...........................................18 to 30 VAC, NEC Class II, 50/60 Hz
for hardwire
Battery power from 2 AA Alkaline
batteries
Operating ambient ............................... 32˚F to +105˚F (0˚C to +41˚C)
Operating humidity .............................. 90% non-condensing maximum
Dimensions of thermostat ................. 4.7”W x 4.4”H x 0.8”D
Mount Thermostat
Align the 4 tabs on the subbase with
corresponding slots on the back of the
thermostat, then push gently until the
thermostat snaps in place.
Battery Installation
Battery installation is recommended even if thermostat is hardwired
(C terminal connected). When thermostat is hardwired and batteries
are installed, the thermostat will activate a compressor delay of 5
minutes when the thermostat detects a power outage from the
hardwired power supply.
Important:
High quality alkaline batteries are recommended.
Rechargeable batteries or low quality batteries
do not guarantee a 1-year life span.
Insert 2 AA
Alkaline batteries
(included). High
quality alkaline
batteries are
recommended.
Simple
operating
instructions
are found
on the back
of the
battery
door.
Gas or Electric Setup
Fan Operation Switch
Installation Tips
2-3
4
5
6
7-8
1
Installation Tips
Thermostat Quick Reference
Getting to know your thermostat
Temperature setpoint buttons
Fan switch
System switch
Easy change battery door
LCD
The low battery icon is displayed when the AA
battery power is low. Whenever the thermostat
detects low battery voltage from the AA batter-
ies, the low battery icon will begin flashing on
the screen for 21 days (if the batteries are not
changed). If the batteries are not changed 22
days after the thermostat detects low battery
voltage, the thermostat screen will only show
the flashing battery icon until buttons are
pressed. If the batteries are not changed 43
days after the thermostat detects low battery
voltage, the thermostat screen will only
show the flashing battery icon until buttons
are pressed and the set points will offset to
85°F/29°C in cooling and 55°F/13°C in heating.
At this stage, set point changes can be made
temporarily but, the set points will change back
to defaulted values after a 4-hour period. The
thermostat will continue to perform this low
battery flashing, temperature offset condition
until the internal voltage threshold is reached.
When the thermostat internal voltage threshold
is reached, all relays will be opened and the
thermostat will become inoperable until new
batteries are installed.
Important
Removing The Private
Label Badge
About The Badge
All of our thermostats use the same universal magnetic badge. Visit the
company website to learn more about our free private label program.
Displays the
selected setpoint
temperature.
System Operation
Indicators:
The COOL ON, HEAT ON
icon will display when the
COOL, HEAT is on.
NOTE:
The compressor delay feature is active
if these icons are flashing. The compressor
will not turn on until the 5 minute delay has
elapsed.
Low Battery Indicator:
Replace batteries when
indicator is shown.
Indicates
the current
room
temperature.
Magnet in door
Subbase Installation
The thermostat should be installed approximately 4 to 5 feet above the
floor. Select an area with average temperature and good air circulation.
• Close to hot or cold air ducts
• That are in direct sunlight
• With an outside wall behind
the thermostat
• In areas that do not require
conditioning
• Where there are dead spots
or drafts
(in corners or behind doors)
• Where there might be
concealed chimneys or
pipes
Wall Locations
Vertical Mount
Horizontal Mount
For vertical mount put one screw on the top
and one screw on the bottom.
For horizontal mount put one screw on the
left and one screw on the right.
Pick an installation location that is easy for
the user to access. The temperature of the
location should be representative of the
building.
Installation Tip
Do not install
thermostat in locations:
Failure to disconnect the power before
beginning to install this product can
cause electrical shock or equipment
damage.
Installation Tip:
Electrical Hazard
Use the bevel on lower ridge
UP
EWT-601-2
Set At
Gas
: For systems that control the fan
during a call for heat, put the fan
operation switch to the GAS position.
Electric
: For systems that do not
control the fan during a call for heat,
put the fan operation switch to the
ELECTRIC position.
All of our products are mercury free.
However, if the product you are
replacing contains mercury, dispose of
it properly. Your local waste
management authority can give you
instructions on recycling and proper
disposal or you can mail the
thermostat to the address on the
warranty section for proper disposal.
Mercury Notice
