Step
1
2
Press
Button
Mode
Displayed
(Factory
Default)
Press up or
down key
to select
Comments
STD2
SS1, STD-2
HP1 or HP2
System
OFF
System must be OFF to run
Configuration menu
Selects System Configuration
Conventional, Heat Pump 1 or 2 Stage
3
Prog Fan (HE)
HG
Select Fan Gas/Electric
On Heat Pump must be HE
4
Prog
Prog
Prog
Prog
Prog
Prog
Prog
RECO (OF)
ON
Recovery Function ON or OFF
SPAN (2)
1 or 3
Cycle Rate Selection - Stage 1
1 Fast 3 Slow
BLIT (ON)
OF
Backlight On or OFF
5
6
7
8
9
10
11
12
SP2 (2)
1 or 3
Selection Stage 2
1 Fast 3 Slow
Cycle Rate
CF (F)
C
Select Temp Display F or C
Prog
Prog
Hour (12)
24
Select Time Format 12 or 24 Hr
COHP (OF)
ON
Selects Compressor Lockout ON or OFF
CANL (1)
1-10
Selects Communication Channels
Requires thermostat to be re-matched
FACT (0)
1
To Restore Factory Defaults
Select 1 If Desired
Requires thermostat to be re-matched
13
14
Prog
Prog
CRES (0)
1
TEST (0)
This Function is not used in Installer
Configuration. This Function is for
Testing Your T’stat after Matching
This Function is not used in Installer
Configuration. This Function is for
Matching Your T’stat and Reciever
1 or 2
Prog
Installer Configuration Menu
Time Delay
The thermostat will provide a 4 minute delay after shutting
down the heating or cooling system before it can be restarted if
[ON]
is
selected at step 10 of the configuration menu. This delay
applies equally to heating or cooling systems. This feature should
not
be used in conjunction with a ULTRA-ZONE Zone Panel.
AUTO
FAN
SYSTEM
HEAT
PM
:
1
°
MON
Room
DAY/
TIME
PROG
PROG
DAY
FAN
HOLD
/RUN
MODE
Reviews filter usage
in hours and minutes.
Also resets filter
count to zero.
LCD Display: Shows
Time, Day, Temperature
and other feature
information as required
Soft touch Programming
and Function Keypad
PROGRAMMING
CONFIGURATION
The configuration menu allows you to set the thermostat
operating characteristics to your system requirements. Set
SYSTEM mode to OFF, then press and hold the key for five
seconds to enter the configuration menu. The display will show
the first item in the configuration menu. The configuration menu
table shows the configuration options and an explanation of each
option. Press the key to step to the next menu item. To exit
the menu and return to program operation, press key. If no
keys are pressed within fifteen seconds, the thermostat will revert
back to program operation.
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362 E-Mail- [email protected]
Thermostat Programming
You can program your thermostat prior to installation by
following these instructions and starting at the configuration
menu. This can be done while you relax in your favorite chair
and is a very good way to familiarize yourself with all the
functions of your thermostat.
Temperature Range
This thermostat can be programmed between 45°F and 95°F
(7°C and 35°C). However, it will display room temperatures from
30°F to 99°F (0°C and 37°C). “HI” will be displayed if the
temperature is higher than 99°F (37°C), and “LO” will display if the
temperature is lower than 30°F (0°C). This thermostat will
automatically cutoff in Heat if the temperature rises above 95°F
(35°C), and automatically cutoff in Cool mode if the temperature
drops below 45°F (7°C).
Program Number
Time
Heat
Cool
Temperature in °F (°C)
1
2
3
4
8:00 am
6:00 am
4:00 pm
10:00 pm
68°F (20°C)
60°F (16°C)
68°F (20°C)
60°F (16°C)
82°F (28°C)
78°F (26°C)
85°F (29°C)
78°F (26°C)
PROG
PROG
HOLD
/RUN
Setting The Current Time and Day of the Week
1)
Press
key. The hour will start flashing. Press the
or
keys to set the correct hour and AM/PM designation.
2)
Press
key again and the minute will start flashing. Press
the
or keys to set the correct minutes.
3)
Press
key again and the current day of the week will start
to flash. Press
or keys to set the current day of
the week.
After 30 seconds the thermostat will return to the current program.
DAY/
TIME
DAY/
TIME
DAY/
TIME
Copyright © 2009 EWC Controls All Rights Reserved
4
The EWT-3900 is Energy Star rated and the following time and
temperature settings are pre-programmed into the thermostat.
Figure 6
