ASSEMBLY INSTRUCTIONS
Pag. 14
BOILER HOOD
The boiler hood is a 2 mm stainless steel back-boiler,
pre-tested at 4,5 ate pressure, available in two versions: 60
or 90 litres.
It produces hot water at no extra charge, as it exploits the
heat of the fumes (or using electricity).
The hood contains 60-90 litres of water, which heats up
quickly at 60 - 70° (it depends on the type of fireplace) and
easily meets a normal family's requirements.
In 40 - 60 minutes at normal fire burning, the water
temperature can reach 60 - 90°C.
The size of the back-boiler hood makes it suitable for all
fireplace models:
- Aerjolly
- Aerjolly combinati
- Universaljolly aria forzata e tradizionali
- Superjolly
The boiler hood can produce hot water in summer, working
when the fireplace is not being used thanks to an electrical
heating element: consumption levels are the same as the
ones of a normal boiler.
BOILER HOOD ASSEMBLING INSTRUCTIONS
Place the boiler hood on the fireplace flue and fix to the top
of the flue using a stainless steel tube.
Insulate the boiler hood with a layer of fibreglass.
Plumb as shown in the figure.
A door must be fitted on the left of the hood to allow for
inspection of the valves and electrical coil.
The water temperature gauge must be built into the hood
and be easily visible.
An omnipolar switch must be used for the electrical coil.
HINTS AND UPKEEP
The efficiency of the boiler hood depends on the type of
fireplace, the quality of the firewood and the aperture of the
fume register. The risk of hood overtemperature is controlled
by the vent valve that ensures the temperature of the water
doesn't exceed 95°C by discharging the hot water. If you
find water escaping from these valves, check the pressure
(this should be 2 - 2.5 bar). Adjust the pressure using the
pressure reducing valve.
Cold
water intake
Safety
valve drain
Hot water
delivery
Hood emptying
Boiler hood
Fibreglass
insulation
Ball valve to drain
system to avoid risk
of frozen pipes
Pressure reducing
valve (recommended
setting: 1.8 - 2 bar)
Heat vent valve
3 bar
safety valve
Sleeve
4 bar safety valve (extra,
do not connect to drain)
JOLLY vent valve
Water temperature
gauge
Electrical resistance,
connect to omnipolar
switch (optional)
We recommend using an
expansion tank to avoid
sudden variations in pressure
(optional)
600/900
200
440
