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4. Installation
Initial pressure of the
expansion vessel
0.5 bar
1 bar
1.5 bar
(1) Factory configuration
24
Volume of the opened expansion vessel depending on the volume of the installation (in litres)
100
125
150
4,8
6,0
7,2
8,0
10,0
(1)
12,0
13,3
16,6
20,0
T001873-C
T001523-B
175
200
250
8,4
9,6
12,0
14,0
16,0
20,0
23,3
26,6
33,3
4.6.5.
Connecting the condensate discharge pipe
1. Mount a standard drainage pipe, Ø 32 mm or more, leading to the
mains drainage system.
2. Mount the flow collector.
3. Into this, insert the condensate collector hose coming from the
siphon j and the safety valve ê.
4. Into this, insert the discharge hose from the disconnector.
5. Mount a trap or a siphon in the discharge pipe.
CAUTION
Do not make a fixed connection owing to maintenance
work on the siphon.
Do not plug the condensate discharge pipe.
4
Set the discharge pipe at a gradient of at least 30
4
mm per metre, maximum horizontal length 5 metres.
Do not drain condensation water into a roof gutter at
4
any time.
Connect the condensate discharge pipe in
4
accordance with prevailing standards.
4.6.6.
Filling the siphon
1. Remove the siphon.
2. Fill the siphon with water. This must be filled up to the level
markers.
3. Re-assemble the siphon.
CAUTION
Fill the water siphon before starting the boiler to avoid
4
combustion products escaping from the boiler.
Mount the vent hose above the siphon.
4
MCA 15 - MCA 25 MCA 25/28 MI
300
> 300
14,4
Volume of the installation x 0,048
24,0
Volume of the installation x 0,080
39,9
Volume of the installation x 0,133
29/04/2010 - 300022146-001-B
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