Master GREEN 115 Instruction Manual download pdf (Page 4)

HOT AIR GENERATOR

regulate the burner follow the instructions in the Burner Instruc-

tion Manual.

CONNECTION TO HOT AIR DUCTS

The space heater provides heat by releasing and dispersing

hot air. An air head is supplied with each unit and it can be

connected to new air ducts if the user wishes to satisfy speciﬁ c

needs. In this case and in particular if the diameter and length

of the ducts have been changed or if the number of bends has

been modiﬁ ed, air output may vary. Consequently it is very im-

portant to check and regulate air output when any modiﬁ cation

is made to air heads or air ducts. In all circumstances you must

ensure that:

• The fan motor does not absorb more current than the maximum

permitted limit;

• The volume of air ﬂ ow corresponds to the recommended level.

If the heater is equipped with centrifugal fan and if the volume of

hot air differs from preset values proceed as follows (Fig.1):

1) Remove the aspiration grill which is on fan motor side of the unit;

2) Remove the screws (2) from the motor slide.

3) Remove the belt (1);

4) Loosen the bolts (3);

5) Turn the pulley clockwise and anti-clockwise in order to in-

crease or reduce the volume of air;

6) Tighten the bolts (3);

7) Put back the aspirations grill;

8) Repeat operations (1) -(7) until the correct volume of air

ﬂ owhas been achieved.

DRAFT

Efﬁ cient combustion and trouble-free working of the burner de-

pend on efﬁ cient ﬂ ue draft. The unit must be connected to the

chimney ﬂ ue in accordance with current legal regulations and in

line with the following guidelines:

• The tube which carries the smoke should cover as short a di-

stance as possible and should slant upwards;

• There should be no sharp bends in the tubes and the diameter

of the tubes must never be reduced;

• Every heater must have its own chimney;

• Flue draft must at least correspond to the minimum compulsory

level in the Technical Speciﬁ cations.

ANALYSIS OF COMBUSTION WASTE PRODUCTS

The probes which check the composition of combustion waste

products and smoke temperature must be positioned as indica-

ted in Fig.2.

When these tests have been completed the hole which was

drilled for the probe must be sealed with a material which is

resistant to high temperatures and which ensures that the tube

remains airtight.

CONNECTION TO FUEL SUPPLY AND CHANGING FROM

ONE TYPE OFGAS TO ANOTHER

To connect the burner to the fuel supply follow the instructions in

the Burner Instruction Manual.

The burner can use both methane gas and L.P.G. The gas used

to predispose the heater at factory has been declared on data

plates applied on the box and on the heater it self (methane,

G20, or L.P.G., G30, G31).

To change from methane gas to L.P.G. or vice-versa you must:

• adapt the burner following the instructions manual;

• repeat regulation of combustion while composition of combu-

stion waste products are checked.

• correct data plate on the heater writing which type of gas must

be used.

REGULATION OF COMBUSTION - I°OPERATION

After having checked the hermetic seal of line and of combu-

stion waste products line, heater may be operated for the ﬁ rst

time.

To perform regulation of combustion correctly, combustion wa-

ste products must be analyzed using appropriate instruments:

values recommended by actual standards must be reached.

Adjustments to be carried out are described in the Burner In-

struction Manual; ﬁ nal values of CO2 shall be correspondant to

excess air factor of 1,2 (12,5% for gas-oil, 9,7% for G20, 9,6%

for G25, 11,7% for G30 and 11,7% for G31) while CO level shall

be less than 75 ppm.

INSTRUCTIONS FOR USE

SWITCHING ON

• Set the control knob (2) in position “0”;

• Turn on the disconnecting switch on the electric switchboard;

• If the unit is operated manually turn the control knob to .The

burner starts up, the combustion chamber heats up and then

the fan starts;

• If the unit operates automatically set the room thermostat at the

desired level and turn the control knob (2) to : the heater will

now start and stop automatically.

• If the heater doesn’t start after you have completed the above

operations consult the Troubleshooting section of this manual.

TURNING OFF

Warning Never stop the heater by simply turning off the

disconnecting switch on the electric switchboard. The

electrical supply must only be disconnected when the fan

has come to a complete stop.

In manual operation turn control knob (2) to “0” or turn off control

in automatic operation.

The burner stops while the fan turns itself on and off until the

combustion chamber has completely cooled down.

200 mm

Fig. 1

Fig. 2

1 2 3 4 5 6 7 8 9 10

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Master GREEN 115 Instruction Manual Page 4

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