Heating engineer
Installation, use and maintenance manual – AY00-120
17
3
LPG pressure reducers
With LPG the following must be installed:
▶
a first stage pressure reducer, close to the liquid gas tank;
▶
a second stage pressure reducer, close to the appliance.
3.10
COMBUSTION PRODUCTS EXHAUST
Flue gas exhaust kit
The appliance, supplied in B53P configuration, is standard sup-
plied with a DN80 flue gas kit, to be set up by the installer.
The fitting (DN80) for connecting the flue gas kit is located in the
upper part of the appliance with vertical outlet.
How to install the flue gas kit
Figure 3.3
p. 17:
1. Fix the terminal (detail A) on the DN 80 extension pipe (detail
B) inside the dedicated socket.
2. Fit the rain cover (detail C) onto the DN 80 extension pipe
(detail B).
3. Remove the protective cap on the top panel of the appliance.
4. Fix the kit (details A+B+C) into the dedicated socket of the
DN 80 flanged union which can be accessed via the appli-
ance's top panel (detail D).
The cap prevents water and foreign bodies entering
the appliance before the fumes kit is installed. The cap
should thus be removed only when the kit itself has
been fully assembled and installed.
Figure 3.3
Flue gas exhaust kit
A
roof terminal (DN80)
B
extension pipe (DN80)
C
rain cover (DN80)
D
flanged fitting (DN80) on upper panel
A+B+C
flue gas exhaust duct kit
Possible flue
If necessary, the appliance may be connected to a flue.
▶
To size the flue refer to Table 1.1
p. 11 and Design Manual.
▶
If several appliances are connected to a single flue, it is oblig-
atory to install a check valve on the exhaust of each.
▶
The flue must be designed, sized, tested and constructed by
a skilled form, with materials and components complying
with the regulations in force in the country of installation.
▶
Always provide a socket for flue gas analysis, in an accessible
position.
3.11
FLUE GAS CONDENSATE DISCHARGE
The AY00-120 unit is a condensing appliance and therefore pro-
duces condensation water from combustion flue gases.
Condensate acidity and exhaust regulations
The flue gas condensate contains aggressive acid sub-
stances. Refer to applicable regulations in force for con-
densate exhaust and disposal.
If required, install an acidity neutraliser of adequate ca-
pacity.
Do not use gutters to discharge the condensate
Do not discharge the fume condensate in gutters, due to
