31
6.
When room temperature has been satisfied for at least
sixty (60) seconds and two (2) minute minimum on-
time has elapsed, compressor switches off.
7.
See Fan Operation see pg. 33.
8.
Place setpoint temperature above room temperature by
at least two (2) degrees.
9.
Compressor starts and, electric energizes after thirty
(30) second delay, thus two-stage heating.
10.
Electric heat runs for minimum of two (2) minutes and
until deviation between room temperature and setpoint
temperature is less than two (2) degrees.
11.
Electric heat switches off and heat pump (compressor)
takes over heating demand.
12.
Electric heater does not restart until three (3) minute
delay has elapsed.
13.
When room temperature is satisfied and two (2) minute
minimum run time has elapsed, compressor cycles off.
14.
Compressor does not restart until three (3) minute
delay has elapsed.
15.
See Fan Operation, see pg. 33.
DRY mode
For Dry mode operation unit should have electric heater.
Control must be configured properly (Heat source ON).
See
Table 7 page 27
Dry mode removes humidity from the air while maintaining
setpoint temperature.
• This is done by energizing the compressor in cooling
with the electric heater.
• Dry mode will not maintain specific humidity level.
• Unit should be equipped with optional electric heat
element, will work without electric heat.
For Dry Mode operation, first turn unit on via ON/OFF
button.
• Select Dry mode via MODE button.
• Room temperature and setpoint temperature will are
displayed.
• Press Up or Down arrow buttons to change setpoint
temperature.
• Setpoint temperature changes by 1 degree with
each successive press of Up or Down arrow buttons.
Holding button in changes temperature rapidly.
Place setpoint temperature at desired room temperature.
• Depending on difference between room temperature
and setpoint temperature compressor and/or heat
source energize.
• If room temperature and setpoint temperature are
same, compressor operates in cooling and electric
heat energizes.
• Should room temperature fall below setpoint
temperature by 2 degrees, compressor stops and
heating continues to boost room temperature back up
to setpoint temperature.
• If room temperature rises above setpoint temperature
by 2 degrees, heating stops and cooling continues
to bring room temperature back down to setpoint
temperature.
HAND HelD CONTROlleR OPeRATION
• Fan operates continuously at low speed while in Dry
mode.
• In order to prevent short cycling, there is 2 minute
minimum on time for both cooling and heating.
Minimum off time is 3 minutes.
• There is a 30 second delay between start of
compressor and start of heat source.
Auto changeover Mode
Auto Changeover mode (ACO), unit must have heat source.
Control must first be configured properly, Heat source –
ON. See Table 7, page 27.
Auto Changeover mode, cassette will operate in either Cool
-
ing mode or Heating mode. Control selects mode of opera
-
tion dependent upon setpoint temperature, room tempera
-
ture and differential setting selected in Configuration mode.
Auto Changeover mode, turn unit on via POWER button.
1.
Select Auto mode via MODE button.
2.
Room temperature and setpoint temperature are dis
-
played.
3.
Press either UP or DOWN ARROW buttons to change
setpoint temperature.
4.
Setpoint temperature changes one degree with each
successive press of UP or DOWN ARROW buttons.
Holding button down changes temperature rapidly.
5.
Place setpoint temperature below room temperature by
auto change over differential amount selected in Con
-
figuration mode.
6.
Compressor starts, unit runs cooling operation as de
-
scribed in Cooling mode.
7.
If setpoint temperature is above room temperature
by auto change over differential amount selected in
Configuration mode, unit runs heating operation as
described in Heat mode.
Set Time Mode
Clock used by 7-day programming mode.
1.
CLOCK button is used to enter or exit Set Time
mode.
2.
Set Time mode can be entered while control is in any
mode, including Off mode.
3.
To enter Set Time mode, press
CLOCK button for
three (3) seconds.
4.
Pressing PROGRAM
button advances to next item.
5.
Order is (1) Day of week, (2) Hour and (3) Minute.
6.
Time of day and day of week are changed using UP or
DOWN ARROW buttons.
7.
When
CLOCK button is pressed again or left idle for
twenty (20) seconds, control saves new settings and
returns to previous mode.
Unit will not automatically adjust for Day Light
Savings time.
