SUN P7
11
EN
cod. 3540I811 - 04/2011 (Rev. 00)
3. INSTALLATION
3.1 General Instructions
This unit must only be used for its intended purpose.
This unit can be used with heat generators for solid fuels, compatibly with its characteristics, per-
formance and heating capacity. Any other use is deemed improper and therefore hazardous.
Opening or tampering with the unit's components is not allowed (except for the parts requiring serv-
icing); do not modify the unit to alter its performance or intended use.
If the burner is completed with optionals, kits or accessories, only use original products.
B
BURNER INSTALLATION AND SETTING MUST ONLY BE CARRIED OUT BY QUAL-
IFIED AND SPECIALISED PERSONNEL, IN COMPLIANCE WITH ALL THE INSTRUC-
TIONS GIVEN IN THIS TECHNICAL MANUAL, THE CURRENT PROVISIONS OF
LAW, THE PRESCRIPTIONS OF NATIONAL AND LOCAL STANDARDS, AND THE
RULES OF PROPER WORKMANSHIP.
3.2 Installation in boiler
Place of installation
The room where the boiler and burner are installed must have openings to the outside
as required by the current regulations. If there are several burners or exhausters that can
work together in the same room, the ventilation openings must be sized for simultaneous
operation of all the units.
The place of installation must be free of flammable materials or objects, corrosive gases,
dusts or volatile substances which, drawn by the fan, can obstruct the pipes inside the
burner or the combustion head. The room must be dry and not exposed to rain, snow or
frost.
Fix the burner to the door. Make the electrical connections as shown in cap. 5 (wiring di-
agram). If the burner is installed in a boiler
SUN P7
, use the special conversion kit. Insert
the temperature probe (contained in the kit) in the sheathing on the cast-iron boiler shell
and make the respective electrical connections.
B
THE BURNER IS DESIGNED TO WORK ON HEAT GENERATORS WITH
COMBUSTION CHAMBER IN NEGATIVE PRESSURE.
THE PELLET HOPPER MUST BE POSITIONED SO THAT THE AUGER/
BURNER FLEXIBLE CONNECTION TUBE IS NOT TWISTED AND/OR BENT.
Instructions for installing the pellet burner SUN P7 in the GFG - SFL boiler
Optional kits are available for using the pellet burner with GFG - SFL boilers. For instal-
lation, refer to the instructions contained in the kits.
Install the burner after fitting the kit in the boiler.
Fix the nozzle "
L
" with screws "
M
" and the burner with nut "
N
". Connect the cable "
E
" to
terminals 11 and 12, and the cable "
T
" to sensor "
V
". Fix the casing "
P
" to the burner
body with screws "
R
" and part "
S
" to the burner.
fig. 4
Insert the motor-operated feed pipe
"Y"
in the pellet tank "
X
" and carry out the auger-
burner connection so that the flexible tube "
W
" is not twisted and/or bent. Respect the
distance given in the fig. 9.
Adjust the burner as described in the relevant instruction manual and, in particular, set
the parameter u02 on the burner controller as given in the table.
fig. 5
fig. 6
fig. 7
fig. 8
Model
3
4
Nominal heating capacity
kW
24.9
33.4
Nominal heat output
kW
22
30
Parameter
u02
2
5
L
N
4
5
6
7
8
9
10
11
12
3.15 A
L
S
M
M
N
P
R
T
V
E
OK
OK
