See figure 3-4.5.6
To facilitate access to the burner oil pump connections, the burner
must be removed from the boiler as follows:
1. Remove the burner cover in white plastic.
• Models 18kw, 24kw and 32kw: Unscrew and remove the 2 fi x-
ing screws of the white burner cover and remove the burner cover.
2. Unscrew and remove the single burner fi xing nut from the burner
flange stud (at the top of the burner) using a 13 mm wrench. Save
the fi xing nut to reassemble the burner.
3. Carefully remove the burner from the boiler
3.3 MAIN COMPONENTS OF THE
BURNER
With all Grant Vortex Boilerhouse Combi, the burner and the boiler
are supplied together but in separate boxes.
Install the burner on the boiler as follows:
1. Remove and save the bolt fixing nut on the burner fl ange at the
front of the boiler.
2. Check that the O-ring around the burner combustion head collar
is in place.
3. Mount the burner on the boiler by sliding the combustion head
into the hole in the center of the mounting flange. Place the mounting
bracket (on top of the burner) on the mounting bolt.
4. With the burner level and properly placed in the mounting flange,
attach the nut (previously removed) to the mounting bolt and tighten
with a 13mm wrench.
Figure 3-6: CUENOD pump description
Item Description
1
Fuel solenoid valve
2
Electrical connection of the solenoid valve
3
Fuel supply hose
4
Connection of the vacuum pressure gauge
5
Suction connection
6
Return connection
7
Fuel pressure regulator
8
Fuel pressure gauge connection
2
4
1
8
7
65
3
Fuel Storage and Fuel System
The pump has a suction fi lter and a fuel
pressure regulator. Before putting the
equipment into service, connect pressure
gauges to measure the vacuum.
Before starting the burner, check that the
return pipe is open. Any obstruction could
damage the pump seal.
The plug mounted in the intake (suction) port
of the oil pump is made of plastic and does not
provide an oil seal when the pump is running.
Make sure that the oil supply from the tank is
connected to this port and that the plastic plug
is discarded.
DANGER
CAUTION
NOTE
Page 15
Figure 3-4: Two-pipe system (standard)
3.2 CONNECTING OIL SUPPLY TO THE
BURNER IN SINGLE TUBE OR IN TWIN
TUBE.
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