Technical data
Series F2 80 C 
10   Ed. 06/2011 
1.3  TECHNICAL CHARACTERISTICS 
The F2 C Series gas fired unit heaters are supplied with: 
- Premix burner made of stainless steel 
- High head blower
- Control board, with microprocessor and anti-noise filter, which manages the 
following functions: burner ignition, flame monitor, blower speed control, fan/s 
control, exchanger temperature control by thermostat 
-  Cylindrical combustion chamber made of stainless steel 
- Heat exchangers, patented by ROBUR, made of special light alloy, fining 
horizontally on the air side and vertically on the flue side with extremely high 
capacity of thermal exchange 
- Steel casing painted with epoxy powders 
- Centrifugal fan/s with high air flow capacity. 
SAFETY AND CONTROL DEVICES 
- High temperature limit switch: 100 °C with manual reset (prevents the 
overheating of the heat exchangers). 
- Pressure differential switch: when the flue exhaust/air intake ducts are 
obstructed, the appliance is stopped. 
- Gas solenoid valve: in the case that one of the safety devices is activated (limit 
thermostat, safety thermostat, etc.) the gas valve is electrically de-energised with 
contemporary cut-off of the burner gas supply. 
!  Supply voltage:      230 V - 50 Hz 
!  Operating temperature:    0 °C to +60 °C 
!  Model:          SIT 822 Novamix 
- Ignition and flame control box: it controls the ignition and flame of the premix 
burner; if there is flame not detected during the safety period the flame control 
box will stop the appliance; with manual reset. 
-  Safety time:        5 seconds 
-  Pre-purge time:        40 seconds 
-  Power supply:        230 V - 50 Hz 
-  Model:  Bertelli & Partners DIMS03 with ignition 
transformer BRAHMA TC2LTCAF 










