Ballu-Biemmedue GA/N 45 C - Инструкция по эксплуатации - Страница 20

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•  At the end of each working period the main switch is 

disengaged and the gas stopcock is closed. 

Warning 

This unit may not be used by persons (including 
children) with reduced physical, sensorial or 
mental capacities or with limited experience and 
familiarity unless they are under supervision or 
instructed on how to use the equipment by the 
person responsible for its safety. 

INSTALLATION INSTRUCTIONS 

Warning 

All the operations described in this section must 
only be performed by professional and skilled 
personnel. 

 
POWER CONNECTIONS 
Warning 

The power line of the generator must be fitted with 
an earth lead and a residual current circuit breaker. 
The supply cable must be connected to a 
switchboard that has an isolation switch. 

All the control and safety devices are already electrically 

connected. 

Before switching on the heater, and therefore, before plugging 

it into the electrical power supply, a check must be made that the 
power supply specifications are the same as those stated on the 
identification plate. 

 
Warning 

The equipment is fitted with a temporary power 
cable, used for the working test. 

 
Warning 

The temporary power cable must be removed and 
replaced with a H07RN-F cable having a 1.5 mm2 
diameter. 
The cable must be stripped leaving the earth 
conductor at least 2 cm longer. 

If any room thermostat or other accessories are connected to 

the system (such as the timer for example) this must be done by 
connecting the electrical cable to the thermostat plug (10): 

•   Take the plug (10) out of the power switchboard, open it and 

remove the electrical jumper between terminals 2 and 3 of 
the plug. 

•   Connect the thermostat electrical cable to terminals 2 and 3 

of the thermostat plug (10). 

•  Close the plug again and plug it back into the power 

switchboard. 

Warning 

Never attempt to switch the heater on or off by 
connecting the room thermostat (or other control 
devices) to the electrical power line. 

Installation and connection of all the other accessories are 

given in the specific instructions enclosed with each accessory, 
like the specific user instructions. 

The electrical wiring diagram shown in this manual only shows 

the electrical connection. 

 
FUEL LINE CONNECTIONS 
Warning 

Before installation check that the local gas 
distribution conditions, the gas type and pressure 
and the current unit regulation status are 
compatible. 

The gas supply hose connection must be of suitable size and 

adequate for the type of system to be set up and must be 
effected by arranging the “gas ramp” as shown in Fig. 2: the gas 
pipe (1), the cut-off valve (2) and the antivibration coupling (3) 
are not supplied with the heater and so must be provided by the 
installer connecting them to the al gas valve group (4) supplied 
with the space heater. 

Fig. 2 

 
1st START UP 

The heater is set up for one of the operating categories in Tab. 

I: the adhesive label applied on the gas valve group (4) indicates 
the appliance category (usually category I2H, G20 / 20 mbar). 

Before starting the generator it is necessary to consult the 

Tab. I to establish the original appliance category, fixed 
compulsory from the referring European and national rules, 
relating to the country of residence. 

 
Warning 

If the appliance category is not the one the unit is 
set up for, follow the detailed instructions in the 
section “CHANGING TYPE OF GAS”. 

Only when the heater has been prearranged according to its 

proper appliance category will it be possible to carry out the 
following operations: 

•   Leak away some gas from the feed pipe; 
•   Check that the gas pipe has no leaks. 
•   Open the gas stopcock and start the space heater; 

Warning 

The gas valve group is set up for a maximum 
supply pressure of 60 mbar (SIT 840 SIGMA). 
If the supply pressure is greater than this value, 
the valve safety membrane could break and cause 
the valve safety stop to be triggered. 

•   Connect a gauge to the upstream pressure intake (4) of the 

valve group (Fig. 2); 

•   Read the supply pressure off the 1st gauge and if necessary 

adjust the gas supply system pressure regulator until the 
correct supply pressure shown in Tab. I is reached; 

•  If necessary, the valve opening speed can be varied for 

models fitted with a Honeywell or Dungs gas valve group, 
by removing the protective cover and then turning the screw 
adjuster: turning counter clockwise increases the opening 
speed while turning it clockwise decreases the speed. 

 
CHANGING TYPE OF GAS 

This operation may be carried out several times during the 

working life of the heater and not only at initial start-up. 

First of all refer to Tab. I to identify the reference category for 

natural gas or liquid gas according to the country of residence. 
For each category the supply pressure, the working pressure and 
the arrangement of the diffusion ring (3) are stated. 

To convert from one type of gas to another proceed as follows: 
•   If stated in Tab.I, change the diffusion ring (3 Fig. 1): 

•   Remove the upper body of the heater;