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8.4.2
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8.4.3
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8.5
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8.6
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0312884_SCC_UKUK_V1.0, 2017-10-03
2.
Install an approved pressure reducing valve (1) to prevent that the pressure in the
cold water supply pipe exceeds the maximum working pressure of the tank, 8 bar.
Refer to the Technical details.
3.
Install a non-return valve (5).
4.
Install an expansion valve (15).
5.
Connect the overflow connection of the expansion valve, to an open waste water
pipe.
6.
Install an expansion vessel (16).
Hot water connection
Note
Insulate long hot water pipes to prevent unnecessary energy loss.
Install the hot water connection:
1.
Install a stop valve (11) in the hot water outlet pipe for service reasons.
2.
If applicable, install a temperature gauge (12).
3.
Install a T&P valve (3).
Circulation connection
Install a circulation pump when an immediate flow of hot water at draw-off points is
required. This improves comfort and reduces water wastage.
Note
Use the special connection for the circulation pipe on the water heater for a more efficient
use of the water heater.
Note
Make sure that the pump has the correct capacity for the length and resistance of the
circulation system.
Install a circulation pump:
1.
Install a circulation pump (6).
2.
Install a non-return valve (5) after the circulation pump to make sure that the
direction of circulation is guaranteed.
3.
Install a stop valve (4) before the circulation pump.
4.
Install a stop valve (4) after the non-return valve.
5.
Connect the circulation pipe.
Condensate drain
Caution
When the condensate drain is not connected to the waste water discharge by an open
connection, this can cause faults.
Caution
Do not change the condensate drain or cause any blockage in the condensate drain.
Install the condensate drain:
1.
Install a drain pipe to the condense drain (13) for condensate drainage.
2.
Make sure that the slope of the drain pipe is 5 mm/m.
3.
Connect the drain pipe through an open connection to the waste water discharge.
Gas connection
Caution
Make sure that the gas supply pipe has the correct diameter and length to supply
sufficient capacity to the water heater.
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