EWC Controls EWT-855 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
Cool Only Systems
Millivolt

Table of Contents

Installation Tips
Thermostat Quick Reference
Private Label Badge
Wiring
Wiring Diagrams
Technician Setup Menu
Programming
Features
Specifications
U.S. Registered Trademark. Patents pending
Copyright 2018 All Rights Reserved.
Installation Tips
Subbase Installation
Horizontal Mount
Vertical Mount
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.
EWT-855
Power Type
Battery Power
Hardwire (Common Wire)
Yes
Hardwire (Common Wire) with
Yes
Battery Backup
Yes
Yes
Yes
A trained, experienced
Yes
technician must install this
Yes
product.
Yes
Carefully read these
Page
instructions. You could damage
2-4
this product or cause a
5-7
hazardous condition if you fail
8
to follow these instructions.
9-10
11-12
Una version en español de este
13-19
manual se puede descargar en
20-27
la pagina web de la compañia.
28-29
30
For horizontal mount put one screw on
the left and one screw on the right.
For vertical mount put one screw on
the top and one screw on the bottom.
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.
Do not install thermostat in these 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
Pick an installation location that is easy for the user to access. The temperature
of the location should be representative of the building.
Rev. 1841
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.
Note: To ensure a solid fit between the
thermostat and the subbase:
1. Mount subbase to a flat wall
2. Use screws provided
3. Drywall anchors should be flush with the wall
4. Wires should be pushed into the wall