Dometic 3312026 Thermostat User Manual


 
7
“HS” - Heat Strip Mode
In the HS mode the system will cycle the heat strip ON and OFF based on the room
air temperature and the temperature set-point on the CCC 2 thermostat. In this mode
there are 4 fan speed selections:
LOW: The fan operates continuously at low speed. The heat strip cycles On and
OFF.
MED: The fan operates continuously at medium speed. The heat strip cycles ON
and OFF.
HIGH: The fan operates continuously at high speed. The heat strip cycles ON and
OFF.
AUTO: The fan operates in low speed and will cycle ON and OFF with the thermo-
stat.
“FAN” - Fan Mode
In FAN mode there are 4 fan speed selections:
LOW: The fan operates continuously at low speed.
MED: The fan operates continuously at medium speed.
HIGH: The fan operates continuously at high speed.
AUTO: The fan will be OFF.
“FURN” / “AQUA” - Furnace or Aqua Mode (Factory setting is “FURN”)
To change the setting from “FURN” to “AQUA” or visa versa, simultaneously press
the up and down buttons. The LED will display the selected option.
In the FURN/AQUA mode the system will cycle the RV’s furnace/aqua ON and OFF
based on the room air temperature and the temperature set-point on the CCC 2
thermostat. The system can be congured to operate using an ON/OFF differential
of either 1 degree F. or 2 degree F. This feature is programmed during the system
initialization. See “System Conguration & Initialization” on page 2. To set the
1 degree differential, simultaneously press PROGRAM button and up button
(“dIF1” will appear in the display while the buttons are pressed). To set the 2 degree
differential, simultaneously press the PROGRAM button and the down button
(dIF2” will appear in the display while the buttons are pressed). In this mode there
are 4 fan speed selections:
LOW: The fan operates continuously at low speed.
MED: The fan operates continuously at medium speed.
HIGH: The fan operates continuously at high speed.
AUTO: The fan is off.
“AUTO” - Auto Change Over Mode
In the AUTO mode the system will automatically change the mode of operation from
cool to heat or from heat to cool. In order for this mode to operate, the zone being
programmed must contain either a heat pump, heat strip or furnace heating source.
When in the AUTO mode, all pre programmed operations for the heat pump, heat
strip, and furnace will apply.
Auto Change Over Cooling: If the room temperature rises above the temperature
set-point by 2 degrees, the air conditioner will turn ON until the room temperature
reaches the temperature set-point at which time the air conditioner will cycle off.
Auto Change Over Heating: If the room temperature goes below the temperature
set-point by 2 degrees, the available heat source will be cycled ON until the room
temperature reaches the temperature set point at which time it will cycle OFF.
If more than one heat source is available on this zone, the priority for selecting the
heat source will be heat pump (rst), furnace (second), and heat strip (third).