EWC Controls EWT-725 Installation Manual

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 Conventional Systems
Two Transformer Systems
Table of Contents
Installation Tips
Thermostat Quick Reference
Wiring
Wiring Diagrams
Features & About The Badge
Technician Setup
Programming Thermostat
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˚
Power source ...........................................18 to 30 VAC, NEC Class II, 50/60 Hz
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
U.S. Registered Trademark. Patents pending
Copyright 2018 All Rights Reserved.
Installation Tips
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.
EWT-725
Power Type
Battery Power
Hardwire (Common Wire)
Yes
Hardwire (Common Wire) with
Yes
Battery Backup
Yes
Yes
A trained, experienced
Yes
technician must install this
Yes
product.
Yes
Carefully read these
Yes
instructions. You could damage
Yes
this product or cause a
No
hazardous condition if you fail to
Page
follow these instructions.
2-3
4-5
Una version en español de este
6
manual se puede descargar en
7
la pagina web de la compañia.
8
9 -12
13-16
Cooling is adjustable from 0.2˚ to 2.0˚
for hardwire
Battery power from 2 AA Alkaline
batteries
Installation Tips
Wall Locations
The thermostat should be installed approximately 4 to 5 feet above the
floor. Select an area with average temperature and good air circulation.
Installation Tip
Pick an installation location that is easy for
the user to access. The temperature of the
location should be representative of the
building.
Subbase Installation
Horizontal Mount
Vertical 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.
Rev. 1841
Thermostat Quick Reference
Getting to know your thermostat
FAN
OFF HEAT
ON AUTO COOL EmH
Simple
operating
instructions
are found
on the back
of the
battery
door.
Do not install
thermostat in locations:
• 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
Installation Tip:
Electrical Hazard
Failure to disconnect the power before
beginning to install this product can
cause electrical shock or equipment
damage.
Mercury Notice
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.
FAN
OFF HEAT
ON AUTO
COOL EmH
LCD Display
Glow in the dark light button
Fan Switch
System Switch
Easy change battery door
Temperature Setpoint Buttons