Programming - EWC Controls EWT-855 Installation Manual

Technician Setup Menu
Tech Setup Steps
This feature allows you to set a
Heating
maximum heating setpoint limit.
Temperature
The setpoint temperature cannot
Setpoint
be raised above this value.
Limit
This feature allows you to set a
Cooling
minimum cooling setpoint limit.
Temperature
The setpoint temperature cannot
Setpoint
be lowered below this value.
Limit
This feature allows you to display
temperatures in either Fahrenheit
˚F or ˚C or Celsius.
You can select either a 12 or 24
12 or 24
hour clock setting.
Hour Clock
Select GAS for systems that
control the fan during a call for
Fan
heat. Select ELEC to have the
Operation
thermostat control the fan during
a call for heat.
This feature will start heating
early to bring the building
Morning
temperature to its programmed
Recovery
setpoint by the beginning of the
WAKE, OCCUPIED time period.
You can configure this thermostat
Program
to have a 7 day program, a
Options 5+1+1 program or as
nonprogrammable.
You can configure this thermostat
to have 2 or 4 programmable time
periods per day. 4 time periods
are Wake, Leave, Return & Sleep.
Time Periods
2C time periods are Occupied
& Unoccupied. 4C time periods
are Occupied 1, Unoccupied 1,
Occupied 2, & Unoccupied 2.
Technician Setup Menu
Tech Setup Steps
Enables a reminder for the user to
Humidity Pad
change the humidity pad.
Reminder
Enables a reminder for the user to
change the UV light bulb.
UV Lamp
Reminder
Enables a reminder for the user
to change the PHI Cell after
IAQ Cell
25,000 hrs.
Reminder
A Note about IAQ Mode
This programmable/selectable mode will operate the fan 1-4 cycles per
hour, 1-45 minutes per cycle. Once programmed in tech setup, to enable
this mode select "IAQ" with the fan key. Disable this mode by selecting
"ON" or "AUTO" with the fan key.
Reminders
Once a reminder has been turned on and set, the elapsed time can be
checked by navigating to its tech setup step. The elapsed time will then
appear in the text field. It can also be reset at that time by holding down
the set time/run sched button for 3 seconds. Resetting an expired
reminder can be done without entering tech setup, by holding down
the set time/run sched button for 3 seconds from the home screen.
LCD Will Show Adjustment Options
Use the or key to
90
select the maximum heat
setpoint.
HE
Use the or key to
44
select the minimum cool
setpoint.
CO
˚F for Fahrenheit
˚C for Celsius
O
78
F
Use the or key to
12H
select 12 or 24 hour clock.
GAS or ELEC
ELE
Use the or key to
turn on or off.
MORN RECOV
Use the or key to
5d
select 7d for 7 day, 5d for
5+1+1, or 0d for
nonprogrammable.
PROGRAM
Use the or key to
4
select 4, 2c, or 4c time periods
per day.
4
TIME PERIOD
LCD Will Show Adjustment Options
Use the or key to
OFF
select OFF, 600, 1000, 1500,
or 2000. These represent
hours of heat operation.
HUM PAD 2000
Use the or key to
OFF
select OFF, 1YEAR, 2YEAR.
UVLAMP 00000
Use the or key to
250
select OFF, or 250 (stands for
25,000 hours).
Technician Setup Menu
Default Tech Setup Steps
The pre-occupancy fan settings
will energize the fan before
90˚F
the occupied time to provide
ventilation prior to scheduled
Pre-Occupancy
occupancy.
Fan
This feature only shows if the
technician setup step for time
periods is set to 2C or 4C.
44˚F
The display light can be
configured to stay on all the
time or come on when any key
is pressed.
Display Light
NOTE: HARDWIRE ONLY
˚F
Keeping the display light
continually "ON" will greatly
reduce battery life.
12
Allows you to put your phone
HOUR CLOCK
number in the display.
Contractor
You can choose ON or OFF.
GAS
Call Number
When any key is pressed an
ON
audible beep will sound.
Beep
You can choose ON or OFF.
5d
Contractor Call Number Note
If contractor call number is selected ON, the phone number entered will
show in the display if there has been a continuous call for heating or
cooling for 24 hours or if the light button is held down for 3 seconds. To
4
remove the phone number from the display, hold the light button down
for 3 seconds.

Programming

Set Time
(If using programming)
Default
Follow the steps below to set the day of the week and current time:
OFF
1. Press the MENU button.
2. Press SET TIME.
3. Day of the week is flashing. Use the
OFF
select the current day of the week.
4. Press NEXT.
5. The current hour is flashing. Use the
OFF
select the current hour. When using 12-hour time, make sure
the correct a.m. or p.m. choice is selected.
6. Press NEXT.
7. Minutes are now flashing. Use the
select current minutes.
8. Press DONE when completed.
Programming
All our programmable thermostats are shipped with an energy saving default
program. You can customize this default program by following the
instructions in the set program schedule section starting on page 24.
Your thermostat can be programmed to have each day of the week
programmed uniquely (7 days), all the weekdays the same with a separate
program for Saturday and a separate program for Sunday (5+1+1), or
non-programmable. For the 7-day and 5+1+1 programming modes, there are
three time period options.
1. "4" Residential (WAKE, LEAVE, RETURN, SLEEP)
2. "2C" Commercial (OCCUPIED, UNOCCUPIED)
3. "4C" Commercial (OCCUPIED 1, UNOCCUPIED 1, OCCUPIED 2, UNOCCUPIED 2)
This thermostat has a programmable fan feature, which allows you to run the
fan continually during any time period.
LCD Will Show Adjustment Options
You can select the
OFF
pre-occupancy fan from OFF,
1, 2, or 3 hours.
PRE
If 1, 2, or 3 is selected, the
OCCUPY
fan will turn on that many
hours prior to the scheduled
FAN
occupied time period.
Use the or key to to
turn on or off.
OFF configures the display
light to come on when the
dL
light key or any button is
pressed.
ON configures the display
light to stay on.
If selected ON, you will
OFF
see the input screen after
pressing NEXT STEP.
Use the or key to
select the desired number
and the FAN or SYSTEM key
to move from one character
to another. See note below
for operation.
If ON is selected the beep
will sound.
b
If OFF is selected there is no
sound.
or key to
or key to
or key to
Default
OFF
OFF
OFF
ON