Proheat A4 - Manual (Page 33)

PROHEAT AIR A2/A4 INSTALLATION MANUAL 4-1
Switch "ON"
After powering up the heater, prime the fuel pump and set the DCP
(Temperature Sensor and Heating Mode) the heater is ready to start. Pushing
the HEAT button, the heater goes to "Precheck".
Precheck
The motor runs for 10 seconds and the DCP performs a short diagnostic
cycle, checking components for proper ranges, short circuit and open circuits.
If there are no errors the heater goes to “ignition”.
Ignition
Ignition is indicated by the flashing heat symbol on the display of the DCP.
The heater starts to glow for 30 seconds. The fuel pump starts, and the glow
plug illuminates. 2 seconds after the glowing time, the motor starts in full
speed. Once the flame sensor reaches the required temperature, the heater
switches off the glow plug and enters into “full output”. If the start is not
successful the heater will attempt to restart one more time.
Full Output
The heat symbol stops flashing and the heater enters the demanded heating
mode. Once the temperature sensor reaches 120°C (248°F) at the heater,
the heater shuts the fuel pump off and goes to “Purge”.
Purge
Purge is indicated by a flashing FAN symbol on the display of the DCP. The fuel
pump shuts off immediately. The blower motor continues to run for 6 minutes
to cool down the combustion chamber. After 6 minutes the DCP checks the
air temperature at the heater. If the temperature is above 140°F (60°C), the
blower will run for 6 more minutes. When the temperature is below 140°F
(60°C) the motor will shut OFF. The heater will now enter Standby.
Standby
The heater continues checking the ambient temperature using the pre-
selected temperature sensor. Once the temperature drops below the preset
temperature, the heater will re-enter “Precheck” and repeat steps 2 to 6. The
heater will continue to repeat these steps until it is switched “OFF.”
Inspect the installation again for leaks.
TO ENSURE FULL WARRANTY COVERAGE COMPLETE THE WARRANTY CARD
AND MAIL TO SEASTAR SOLUTIONS.
4.0.1
4.0.3
4.0.5
4.0.4
4.0.2
4.0.6
NORMAL OPERATING
SEQUENCE 4.0
NOTICE
In Precheck and Ignition modes the heat
symbol will be flashing on the DCP.
NOTICE
To increase the heating demands, use
the left (decrease) and right (increase)
buttons.
NOTICE
After 6 minutes cool down, turn OFF
the heater and reset the menu number
5 (ME 5), for customer applications.