User Guide
SYMBOL
PRESS
HOLD
▲
UP/Override mode UP/Permanent
Override mode
▼
Down/
Override mod
e
Down/Permanent
override mode
ON/OFF
ON/OFF
--------
MODE
Set operation
mode
Internal Setting
FAN
Set fan speed/
Confirm
--------
EVENT TIME
HEAT
COOL
MON-
FRI
WAKE
LEAVE
RETURN
SLEEP
6:00 AM
8:00 AM
6:00 PM
10:00 PM
70º F (21º C)
62º F (17º C)
70º F (21º C)
62º F (17º C)
78º F (26º C)
85º F (29.5º C)
78º F (26º C)
82º F (28º C)
SAT-
SUN
WAKE
LEAVE
RETURN
SLEEP
6:00 AM
10:00 AM
6:00 PM
11:00 PM
70º F (21º C)
62º F (17º C)
70º F (21º C)
62º F (17º C)
78º F (28º C)
85º F (29.5º C)
78º F (26º C)
82º F (28º C)
FEATURE LIST
•
Operates on 2 stage Heat and 2 stage Cool
•
7 programs (Mo, Tu, We, Th, Fr, Sa, Su) or
5- 2 programs (Mo-Fr, Sa-Su)
•
4 Separate Time and Temperature Settings
for each program
•
Heat and Cool set-points for each program
•
EEPROM stores heat and cool program settings
•
Temporary Program Override
•
Permanent Program Override
•
Compressor Short Cycle Protection
•
LCD Backlighting
•
Low Temperature Protection
USER INTERFACE
Push Buttons
OPERATION
NORMAL MODE
1.
Press[ON/OFF] to turn on thermostat
2.
Press[Mode] to change the system mode
3.
There are three operation modes for ELA 8842,
Cool Mode, Heat Mode, Auto Mode
COOL MODE
•
To activate cooling mode, press the mode button
until COOL displays
•
Press up/down arrow keys to your desired
temperature
•
Compressor will cycle when temperature
reaches the set point. After compressor stops,
allow at least 3 minutes before restarting
(this applies only if you have manually turned the
unit off or reset the thermostat – during normal
running conditions, the unit will automatically
allow for the required restart delay)
The temperature reading that is on constant display is
the ambient room temperature.
HEAT MODE
•
To activate heating mode, press the
Mode button until HEAT displays
•
Press up/down arrow keys to your
desired temperature.
•
The unit will cycle until the set
temperature is achieved and then will
continuously cycle to maintain the set
temperature.
The temperature reading that is on constant display
is the ambient room temperature.
AUTO MODE
•
To activate auto mode, press the mode
button until AUTO displays
•
Press up/down arrow keys to set
desired heat temperature
•
Wait 5 seconds for cool to appear
•
Press up/down arrow keys to set
desired cool temperature
•
The unit will automatically cycle
between heat and cool modes if unit
exceeds desired set points
The temperature reading that is on constant display is
the ambient room temperature.
ENTER PROGRAMMING MODE
•
Enter internal setting mode by
pressing and holding [Mode] key
for 5 seconds
TIME SETTING
Set Clock/Day is flashing
1. Press [Mode] key to select Edit “Clock/Day”
2. Use [Up] and [Down] keys to adjust hours (12 hr)
3. Press [Mode] to select minutes
4. Use [Up] and [Down] keys to adjust minutes
5. Press [Mode] to select days
6. Use [Up] and [Down] keys to adjust days
Press [Fan] when complete
DAILY PROGRAMMING
Press [On/Off] to select Schedule (Schedule is flashing)
1. Press [Mode] key to select Edit “Set Schedule”
2. Use [Up} and [Down] to select Day
3. Press [Mode] to edit time
4. Use [Up} and [Down] to select Time
(Adjustable in 10 minute increments)
5. Press [Mode] to edit heat setting
6. Use [Up} and [Down] to select temp
7. Press [Mode] to edit cool setting
8. Use [Up} and [Down] to select temp
9. Press [Mode] to set next time frame
10. Follow the screen, and repeat steps 2 through 9
to adjust 7 day schedule programming.
11. Press [Fan] when complete
Below is the default program:
The default selection is 7-day program
CHANGING PROGRAM SCHEDULE AND TEMPERATURE LIMITS
Press [On/Off] twice to select Settings (Settings is flashing)
1. Press [Mode] key to select Edit “Settings”
2. Use [Up} and [Down] to select 7 Day or 5-2 Day
3. Press [Mode] to edit Heat Temperature Limit
4. Use [Up} and [Down] to set temperature
Default internal setting: Heat limit 90°F
5. Press [Mode] to edit Cool Temperature Limit
6. Use [Up} and [Down] to set temperature
Default internal setting: Cool limit 60°F
7. Press [Fan] when complete
The cool limit setting should be at least 4°F higher
than the heat limit setting.
•
The cool limit setting is 55°F to 95°F
•
The heat limit setting is 51°F to 91°F
EXIT INTERNAL SETTING AND RETURN TO NORMAL MODE
1.
Press [Fan] to confirm and return to normal mode
2.
If no key is pressed for 15 seconds, it will return to
normal mode automatically
TEMPORARY PROGRAM OVERRIDE
1.
When thermostat is ON, the program set-
point can be temporary overrode by
pressing [UP] or [DOWN]. “OVERRIDE” icon
will turn on. Press[UP] or [Down] to select
the set point
2.
In Heat mode, Heat set-point can be
adjusted
3.
In Cool mode, Cool set-point can be adjusted
4.
In Auto mode, Heat set point will be set
first and press [UP] or [DOWN] to set the
Heat set point. Press [Fan] to confirm the
Heat set point. Cool set point will be set
second and press [UP] or [DOWN] to set
the Cool set point. Press [Fan] to confirm
the Cool set point.
5.
Temporary Override will be cancelled if
user changes the operation mode or the
unit enters the next program time session.
PERMANENT OVERRIDE
1.
Holding [UP] and [Down] key for 2 seconds
to enter Permanent Override mode.
Permanent Override icon will turn on.
2.
In Heat mode, Heat set-point can be
adjusted
3.
In Cool mode, Cool set-point can be
adjusted
4.
In Auto mode, Heat set point will be set
first and press [UP] or [DOWN] to set the
Heat set point. Press [Fan] to confirm the
Heat set point. Cool set point will be set
second and press [UP] or [DOWN] to set
the Cool set point.
5.
Permanent Override will be cancelled if
user changes the operation mode or turns
off the unit.
6.
Hold [Fan] key 5 seconds to cancel the
permanent override mode
OPERATING SPECIFICATIONS
•
Temperature measurement
°C~40°C / 32°F ~ 99°F
•
Accuracy: ±0.5°C/ 1°F
•
Voltage: 18-30VAC
•
Temperature Controllable range:
5°C~35°C / 55°F ~ 95°F
•
Resolution: 0.5°C /1°F
•
Operating temperature:
0 – 50 °C / 32 – 122 °F
•
Storage temperature:
5 – 50 °C/ 23 – 122 °F
6:08
AM
MON
WAKE
LCD Programmable Thermostat (ELA-8842)
Steps to enter programming mode must be
performed each time to get into internal settings
Override will show on display
