Hydor HCBI50, Installation And Maintenance Instructions Manual

HREI

 Inst Issue 1: 09.05.16

7. Commissioning

7.1  Operating principle
 

7.1.1 

The control box tests the break contact of the air pressure 

switch and turns on the smoke extractor. Its proper functioning 

is controlled by the differential air pressure switch. In case of 

lack of air, it prevents the control box from following its cycle.

7.1.2 

After pre-ventilation, the ignition electrode lights up and the 

valve allows the gas passing through the injectors.

7.1.3 

If the air/gas mixture is not ignited or is not detected by the 

ionization sensor, the flame control box tries once more and 

switches on safety position.

7.1.4 

Once the burner is ignited, the blowing fan is triggered when 

the air temperature is higher than the fan thermostat value 

(35°C to 40°C).

7.1.5 

In the case of a fan malfunctioning, the overheating thermostat 

cuts off the burner if the temperature exceeds 90 °C.

WARNING

 Never stop the device before the fan has totally stopped. The 

lack of cooling can necessitate to reset the overheating thermostat and 

can damage the heat exchanger over the long term.

This commissioning must be carried out by a Qualified Technician with 

a current Gas Care Certificate.

7.2  Initial operation
 

7.2.1 

To commission the heater, switch on the heater and turn the 

regulator to demand. The control box tests the break contact of 

the air pressure switch and turns on the smoke detector. Its

function is controlled by the differential air pressure switch. If 

there is a lack of air, it prevents the control box from 

commencing its cycle.

7.2.2 

After pre-ventilation, the ignition electrode lights up and the 

valve allows the gas to pass to the injectors.

7.2.3 

If the air/gas mixture is not ignited or is not detected by the 

ionization sensor, the flame control box tries once more and 

if not detected again, switches to the safety position.

7.2.4 

Once the burner has ignited, the main fan is triggered when the 

air temperature is higher than the fan thermostat. [35°C - 40°C].

7.2.5 

In the case of the main fan malfunctioning, the overheat 

thermosat cuts off the burner should the temperature 

exceed 90°C.