Unigas HP60, Manual

Page: 7 / 36

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RESPECT THE BASIC SAFETY RULES. MAKE SURE OF THE CONNECTION TO THE EARTHING SYSTEM. DO NOT
REVERSE THE PHASE AND NEUTRAL CONNECTIONS. FIT A DIFFERENTIAL THERMAL MAGNET SWITCH
ADEQUATE FOR CONNECTION TO THE MAINS.
MOUNTINGS AND CONNECTIONS
Rotation of fan motor and oil pump motor
After completing the electrical connection of the burner, remember to check the rotation of the fan motor and the oil pump
motor. Both motors should rotate in an anti-clockwise direction looking at cooling fan of the motor. In the event of incorrect
rotation reverse the three-phase supply and recheck the rotation of the motor.
NOTE. the burners are supplied for three-phase 400 V supply, and in the case of three-phase 230 V supply it is necessary to
modify the electrical connections inside the terminal box of the electric motor and replace the thermal overload relay.
Fig. 4
Legend
1) Burner
2) Fixing nut
3) Washer
4) Seal
5) Stud bolt
6) Sightglass cleaning tube
7) Blast tube
INSTALLATION MANUAL
Packing
The burners are despatched in cardboard packages of dimensions:
HP72
1400 - 1190 - 710 mm ( “ “ “ )
Packing cases of this type are affected by humidity and are not suitable for stacking.
The following are placed in each packing case:
1
burner with gas train which is detached but already connected to the burner electrically ;
1 gasket made of asbestos-free material to be inserted between the burner and the boiler;
2 flexible light oil tubes;
1 light oil filter;
1 set of the following documents: this manual, the Guarantee Certificate and the test certificate.
To get rid of the burner’s packing and in the event of scrapping of the latter, follow the procedures laid down by current laws
on disposal of materials
Fitting burner to boiler
After fitting the burner to the boiler see that the space between
the blast tube and the refractory lining is sealed with appropriate
insulating material (ceramic fibre cord or refractory cement).
Electrical connection diagram
- Remove the cover of the electrical panel beside the burner.
- Effect the electrical connections to the supply terminal board as per the scheme in fig. 5, check the direction of
rotation of the fan motor (see note at end of page) and refit the panel cover.
WARNING: The burner is fitted with an electrical bridge between terminals 6 and 7, in the event of connecting the high/low
flame thermostat remove this bridge before connecting the thermostat.
IMPORTANT: In connecting electric supply wires to burner teminal block be sure that ground wire should be longer than
phase and neutral ones.
Legend: see page 20.
Fig. 5