Robur GAHP A indoor, Инструкция по установке, использованию и техническому обслуживанию

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Heating engineer
Installation, use and maintenance manual – GAHP A
23
3
3.10 COMBUSTION PRODUCTS EXHAUST
Compliance with standards
The appliance is approved for connection to a combus-
tion products exhaust duct for the types shown in Table
1.1
p. 16.
3.10.1 Flue gas exhaust connection
▶
Ø 80 mm (with gasket), on the left, at the top (Figure
3.2
p. 23).
3.10.2 Flue gas exhaust kit
The appliance is supplied with flue gas exhaust kit, to be fitted
by the installer, including (Figure 3.2
p. 23):
▶
1 pipe Ø 80 mm, length 300 mm, with terminal and socket
for flue gas analysis
▶
1 support collar
▶
1 90° elbow Ø 80 mm
▶
1 rain cover
Figure 3.2 Flue gas exhaust
A 90° elbow Ø 80
B Pipe Ø 80 300 mm with terminal
C Rain cover
D Collar
How to install the flue gas kit
Figure 3.2 p. 23:
1. Remove the front panel.
2. Fasten the collar (D) with its spacer to the left side panel
of the appliance.
3. Fit the terminal/pipe assembly (B) to the elbow (A).
4. Fit the rain cover (C) onto the elbow (A).
5. Remove the protection cover.
6. Insert the elbow/terminal/pipe assembly into the flue
gas exhaust.
7. Fit the assembly closing the collar (D) and place the rain
cover.
8. Fit the front panel back on.
The cap prevents water and foreign bodies from 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.
3.10.3
Possible flue
If required, the appliance may be connected to a flue appropri-
ate for condensing appliances.
▶
To size the flue refer to Table 1.1 p. 16 and design manual.
▶
If several appliances are connected to a single flue, it is oblig-
atory to install a check valve on the flue gas exhaust of each.
▶
The flue must be designed, sized, tested and constructed
by a skilled firm, 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.
In case the check valves are installed outside, an appro-
priate UV ray protection must be assured (if the valve
is in plastic) as well as protection from potential winter
freezing of condensate backflow into the siphon.
3.11 FLUE GAS CONDENSATE DRAIN
The GAHP A 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
capacity.
Do not use gutters to discharge the condensate
Do not discharge the flue condensate in gutters, due to
the risk of materials corrosion and ice formation.
3.11.1
Flue gas condensate connection
The fitting for flue gas condensate drain is located on the left
side of the appliance (Figure 3.3 p. 24).
▶
The distance L between the sleeve and the base must not
exceed 110 mm.
▶
The corrugated condensate drain pipe must be connected
to a suitable drain manifold.
▶
The junction between the pipe and the manifold must re-
main visible.
▶
The connection of the discharge to the sewerage system
must be made at atmospheric pressure, i.e. by dripping into
a siphoned container connected to the sewerage system.
3.11.2 Flue gas condensate drain manifold
To make the condensate drain manifold:
▶
Size the ducts for maximum condensation flow rate (Table
1.1 p. 16).
▶
Use plastic materials resistant to acidity pH 3-5.
▶
Provide for min. 1% slope, i.e. 1 cm for each m of the length
(otherwise a booster pump is required).
▶
Prevent freezing.
▶
Dilute, if possible, with domestic waste water (e.g. bath-
rooms, washing machines, dish washers...), basic and neu-
tralising.