![Aprilaire 8244 Installation And Operation Manual Download Page 5](http://html.mh-extra.com/html/aprilaire/8244/8244_installation-and-operation-manual_2956112005.webp)
5
CONFIGURATION MENU
Step
Press Button(s)
Displayed
(Factory Default)
Press
or
to select:
Comments
1
Set system switch
to OFF
System switch must be OFF to confi gure thermostat
2
and
*
(FA)
SL
Select FA or SL (Fast or Slow) heating cycle rate
3
and
*
-L (ON)
OFF
Select backlight ON or OFF
4
and
*
OC (OFF)
ON
Select compressor lockout LOC OFF or ON
5
and
*
0 HI (0)
4 LO to 4 HI
Select temperature display adjustment higher or lower
6
and
*
(F)
C
Select temperature display to F or C
7
Move system
switch from OFF to
HEAT or COOL
Returns to normal operation
*Press
and
simultaneously to advance to next item.
CONFIGURATION MENU
The confi guration menu allows you to set certain thermostat
operating characteristics to your system or personal requirements.
1. With SYSTEM switch in “OFF” mode, press
and
keys
at the same time to enter the confi guration menu. The display will
show the initial item in the confi guration menu.
The confi guration menu table summarizes the confi guration
options. An explanation of each option follows.
2.
Select FA or SL (Fast or Slow) Heating Cycle Rate
– The
FA setting is frequently used for gas, oil or electric heat. The SL
setting produces a longer heating cycle which is normally for hot
water or steam (hydronic) systems. Both settings produce very
accurate temperature control and can be set to your personal
preference. FA cycles the system just under 1°F and the SL setting
cycles at approximately 1.5°F.
3.
Select Backlit Display
– The display backlight improves display
contrast in low lighting conditions. Selecting Backlight ON will
keep the light on continuously. Selecting Backlight OFF will keep
the light off.
4.
Select Compressor Lockout LOC OFF or ON
– Selecting LOC
ON will cause the thermostat to wait 5 minutes before turning on
the compressor if the heating and cooling system loses power. It
will also wait 5 minutes minimum between cooling cycles. This
is intended to help protect the compressor from short cycling.
Some newer compressors already have a time delay built in and
do not require this feature. Your compressor manufacturer can
tell you if the feature is already present in their system. When the
compressor time delay occurs it will fl ash the
Snowfl ake icon
(
) for about fi ve minutes then turn on the compressor.
5.
Select Temperature Display Adjustment 4 LO to 4 HI
–
Allows you to adjust the room temperature display 4° higher or
lower. Your thermostat was accurately calibrated at the factory
but you have the option to change the display temperature to
match other temperature measuring devices.
6.
Select °F or °C Readout
– Changes the display readout to
Celsius or Fahrenheit as desired.
SPECIFICATIONS
ELECTRICAL DATA
Electrical Rating:
20 to 30 VAC 50/60 Hz.
0.05 to 1.2 Amps (Load per terminal)
1.5 Amps Maximum Total Load
(All terminals combined)
THERMAL DATA
Setpoint Temperature Range:
45°F to 90°F (7°C to 32°C)
Operating Ambient Temperature Range:
32°F to 105°F
Operating Humidity Range:
0 to 90% RH (non-condensing)
Shipping Temperature Range:
-40°F to 150°F
CLEANING THE THERMOSTAT
If the surface of the thermostat becomes dirty it can be cleaned with
plain water or a non-abrasive household cleaner including glass
cleaner. When using any cleaner, be careful not to get any into the
interior of the thermostat.
Do not spray any liquid directly onto
the thermostat.
Spray the cleaner onto a soft cloth and wipe the
surface of the thermostat.