34
GTV
FORCED CONVECTION AIR HEATERS
Instructions for Installation and Servicing
The properly installed appliance according to the control sign received from temperature regulator - in the present case heating – starts
the exhaust fan,which executes the 30 seconds prepurge time� This time period is also enough for biggest power appliance to ensure
the satisfactory air exchange namely the triple of combustion air volume� When the ventilation happened the sparking is started and the
dual magnetic valves are opened the gas ignites�
If the continuous burning is formed within 5-10 seconds the appliance is operating normally the green control lamp is lighting��During
operation the appliance continuously monitors the status/sign of differential pressure switch and flame detector, if needed the electronic
control intervenes in the process�
If the status of differential air pressure switch is changed during operation namely switches over from work/switched on position to ba
-
sic/standstill position in that case the automatic electronic control stops the gas supply by closing of magnetic valves and controls the
appliance in error mode moreover the red control lamp located on front side of device is lighting�
In case the flame detector of automatic burner control does not sense flame formation during ignition in that case stops the gas supply
and controls the appliance in error mode moreover the red control lamp is lighting�
In case during burning process the pressure difference decreases under the permissible minimal value on the air pressure switch than
the automatic control prohibits the operation as follows:
•
stops the gas supply
•
stops the operation of exhaust fan
•
controls the appliance in error mode and red control lamp is lighting
ATTENTION! The restart of appliance, which is in safety status can only be possible by
pushing of „RESET” push button located on the PCB (inside of appliance) or on the tem-
perature regulator!
General information:
The flame detector is self-checking and can just operate with the burner, other environmental effects (ambient
temperature,lights) can not influence it.
9.
Appliance operation
Start, restart
The control of appliance is performed by temperature regulator(room thermostat)� It can be manually operated or equipped with pro-
gramme-clock according to the request�
Manually operated thermostat (
AHP-1
):
the thermostat is equipped with a mode switch HEATING / 0 / VENTILATING and equipped with a „RESET” (remote-restarter) push-
button. The requested temperature can be adjusted on a calibrated scale by the driving knob and the thermostat turns on/off the appli
-
ance according to the temperature�
Programmable thermostat (
AHP-2
):
the thermostat is equipped with a mode switch HEATING / 0 / VENTILATING and with a „RESET” push button and with PRO-
GRAMME-CLOCK� The requested day/night-temperature can be adjusted on calibrated scales by two driving knobs� The programma-
ble thermostat turns on/off the appliance depending on part of the day according to the temperature. The programmable-clock makes
the daily and weekly programming possible�
The gas-powered warm air blower is equipped with an electrical board (built in the appliance), which process the sign of thermostat in
this way the air heater and the thermostat can communicate by one wire, it is the so-called PILOT control�
AHP-3:
The appliance is controlled by a HEATING/0/COOLING selector and RESET button� It has a time switch� Use the two rotatable knob to
set the temperature� Thermostat can TURN ON and TURN OFF the appliance, it depends on the room temperature� You have a chance
daily and weekly programming with time switch�
Thermostat and appliance: Appliance is under voltage with selector� In this case the green lamp is lighting and you can chose from heat-
ing or cooling mode�
Operation:
In heating mode, use the knob to set the maximal pressure (2 red lamp is lighting) and after turn the button back (50 % LED is lighting)
to set the minimal pressure� Next step to set required temperature with the knob�
Control and regulation of appliance
