SECTION 4 –
APPLIANCES AND SYSTEMS
4-12
ELECTRONIC THERMOSTAT OPERATION CHART
The following chart shows the system functions with the
Electronic Thermostat
(Heating and Cooling)
AIR CONDITIONER FILTERS
Air conditioner filters are located inside the
Return Air Vents throughout the ceiling of the
coach and must be inspected monthly and
cleaned periodically so the air conditioners will
operate efficiently.
SLIDE
SWITCH
MODE
ZONE
DEMAND
CONTROL
BOX - H/P
JUMPER
OPERATION OF UNIT
Off
N/A
1-4
N/A
N/A
No units operating in this mode. LCD is displaying temperature of Zone.
User can toggle through zones to see temperature in each zone
(setpoint cannot be adjusted).
Cool
Cool Auto
1-4
No
N/A
Nothing is operating since there is no cooling demand. LCD is displaying
temperature of Zone.
Cool
Cool Auto
1-4
Yes
N/A
Compressor is energized. If 1 degree above setpoint, then fan Low is
energized; If 2 degrees above setpoint, then fan High is energized and
locks in on High.
Cool
Cool High
1-4
No
N/A
Fan High is energized.
Cool
Cool High
1-4
Yes
N/A
Compressor is energized/fan High is energized.
Cool
Cool Low
1-4
No
N/A
Fan Low is energized.
Cool
Cool Low
1-4
Yes
N/A
Compressor is energized/fan Low is energized.
Cool
Fan High
1-4
N/A
N/A
Fan High is energized (setpoint cannot be adjusted).
Cool
Fan Low
1-4
N/A
N/A
Fan Low is energized (setpoint cannot be adjusted).
Cool
Off
1-4
N/A
N/A
Nothing operational in Zone (setpoint cannot be adjusted).
Heat
Elec
1-4
No
Non-HP
Nothing is operating in this mode since there is no heating demand.
Heat
Elec
1-4
Stage 1 (1 degree
below setpoint)
Non-HP
Fan Low is energized. Heat strip is energized.
Heat
Elec
1-4
Stage 2 (5 degrees
below setpoint)
Non-HP
Fan Low is energized. Heat strip is energized. Low gas heat energized
(Zones 1 and 2 only). See Notes 1 and 2.
Heat
Elec
1-4
Stage 3 (7 degrees
below setpoint)
Non-HP
Fan Low is energized. Heat strip is energized. Low and High gas heat
energized (Zones 1 and 2 only). See Notes 1 and 2.
Heat
Elec
1-4
No
HP
Nothing is operating in this mode since there is no heating demand.
Heat
Elec
1-4
Stage 1 (1 degree
below setpoint)
HP
High Fan energized. Compressor and reversing valve energized.
Heat
Elec
1-4
Stage 2 (5 degrees
below setpoint)
HP
High Fan energized. Compressor and reversing valve energized. Low
Gas Heat energized (Zones 1 and 2 only). See Notes 1 and 2.
Heat
Elec
1-4
Stage 3 (7 degrees
below setpoint)
HP
High Fan energized. Compressor and reversing valve energized. Low
and High Gas Heat energized (Zones 1 and 2 only). See Notes 1 and 2.
Heat
Gas
1-2
No
N/A
Nothing is operating in this mode since there is no heating demand.
Heat
Gas
1-2
Stage 1 (1 degree
below setpoint)
N/A
Low Gas Heat energized.
Heat
Gas
1-2
Stage 2 (5 degrees
below setpoint)
N/A
Low Gas Heat energized. High Gas Heat energized. See Note 1.
2)
The word "Gas" will display on the LCD screen when 2nd stage heat (Low Gas Furnace) is operating.
NOTES:
1)
When 2nd or 3rd stage heating is activated, it stays on until setpoint is satisfied. When heating stage is running for more than 20
minutes without reaching setpoint, then the next available heating stage will be energized.