Carrier 48EH, Инструкции по установке, эксплуатации и обслуживанию

Страница: 14 / 24

Packaged rooftop units
with integrated gas burner
14
1 2 3 4 5 6 7 8
PCH150/200
Included in the burner module
Where:
1. Solenoid valve main burner (EV2)
2. Solenoid valve pilot burner (EVP)
3. Pressure stabiliser:
4. Solenoid safety valve (EV1)
5. Gas fi lter (small section)
6. Vibration damping gasket
7. Gas fi lter (large section)
8. Gas cock
- With regard to the gas supply :
The burner module includes the following elements: solenoid valves,
stabiliser and safety valve (see diagram).
To complete the installation a gasket must be fi tted to dampen
vibrations and a gas cock. It is also obligatory to install a gas fi lter
with certifi cation EN126 with a fi ltering level less than or equal to
50 microns, without pressure stabiliser for a high fl ow due to being
assembled as standard with the gas valve.
For the gas power supply the burner has a bronze M 1" threaded
drain junction.
Note: If the generator is not going to be used over a
prolonged period the gas supply valve must be closed.
Chimney connection :
As a general indication, the chimney mouth must be located, as
a minimum, 1 metre above the highest point of roofs, walls or any
other distant obstacle at less than 10 metres. If the chimney mouth
is located at a distance between 10 and 50 metres from any building
it must be at a level of no less than the upper edge of the highest
gap in the nearest building.
The materials used for the manufacture of the chimney are:
- Aluminium with a minimum thickness of 1.5 mm.
- Stainless steel with a minimum thickness of 0.6 mm (carbon
content <2%).
Pipes with hermetic gaskets should be used to prevent any
condensate leak. These gaskets must be prepared for working over
a temperature range of 30ºC to 160ºC.
These pipes must also be insulated to protect those who could
accidentally touch them from burns.
Note : The gas burner chimney is not supplied with the
unit. Its design and installation is the responsibility of
the engineer and must comply with all the directives and
regulations in force in the installation location.
- With regard to the smoke outlet :
Smoke outlet connection type: category B23. Inside diameter of the
connection 146 mm and

outside diameter 210 mm (symbol 6 ).
- With regard to the fuel , check that:
• The gas supply network information is compatible with that
indicated on the data plate and that the generator is supplied with
the same type of fuel for which it has been manufactured.
• The aspiration of combustion air and the expulsion of smoke are
free (presence of dirt, leaves etc.)
• The unit air fl ow rate is appropriate according to the data plate
and the unit includes all the required safety elements in perfect
condition.
• The fuel supply pressure is within the interval featured on the data
plate.
• The supply line valves are open.
• There are no leaks in the gas line.
- With regard to the collection of condensates :
These units are equipped with a junction for draining the burner
condensates drain pan. Threaded connector M 3/4” in PVC (see
symbol
3
in the following fi gure).
To facilitate drainage, the construction of the group of generator pipes
slopes slightly towards the discharge.
If the unit is going to be installed outdoors in a location where there
are never low temperatures, the drain junction does not have to be
connected to any pipe. It must simply be ensured that the water
does not stagnate.
If the condensates are going to be discharged into a pipe do not seal
it directly at the condensate outlet. If the water were to freeze in the
pipe this could block the discharge of condensates and cause the
water to accumulate inside the exchanger.
Group of sloping pipes
Note : The access panel to the burner includes two grilles
for the recirculation of outdoor air in the case of a gas leak
inside the module (see symbol 4 in the following fi gure).