Water Discharge Connection; Room Sealed Installations; Checking The Gas Inlet (Boiler Only) - REMEHA Gas 110 Eco 115 Installation, User And Service Manual

5.3 Water discharge connection

Discharge condensation water directly into the main drain. Given the
degree of acidity (pH 2-5), use only plastic materials to make the
connection. Make the connection to the main drain with a visible flow
connection.

5.4 Room sealed installations

It is unnecessary to provide separate combustion air to the room/
compartment as this is supplied direct to the boiler via the concentric
or eccentric system and the room sealed horizontal or vertical
terminal unit.
Additional ventilation will be required to the room/compartment in
accordance with the British Standards (compartment ventilation).
For maximum flue/air inlet length
See chapter 6.1.2
For installations where supply and discharge points are in two
different pressure zones (eccentric only), please contact Broag
Technical Dept. for further details and advice.
See chapter 6.1.1
NOTE: the boilers can be installed on a flue dilution system, but must
have a total flue break to avoid boiler controls being affected by the
dilution fan pressures. For full details, please contact Broag.

5.5 Checking the gas inlet (Boiler only)

These actions must be carried out by a qualified engineer.
Check the leak tightness of the gas inlet, including the gas
valves.
Open all the stop valves on the gas inlet.
Empty the gas inlet.
Maximum authorised pressure on the gas valve: 60 mbar. In the
event of higher control pressures, disconnect the boiler from the
gas inlet at the threaded connection to the gas stop valve.
Closing the gas stop valve is not sufficient.
25/01/2011 - 300014883-001-K
The discharge duct must have a minimum gradient of 50 mm/m. The
discharge of condensation water via the gutter is not authorised, given
the risk of frost and the damage to the materials usually used for gutters.
For the United Kingdom: Comply with latest British standards.
Ref BS 5440 - 2: Specification for installation and maintenance
of ventilation for gas appliances not exceeding 70kW (1st, 2nd
and 3rd family gases).
Ref BS 5440 - 1: Specification for installation of gas appliances
to chimneys and for maintenance of chimneys not exceeding
70kW (1st, 2nd and 3rd family gases).
Ref BS 6644: Specification for installation of gas-fired hot water
boilers of rated inputs between 70kW to 1.8 kW (net) (2nd and
3rd family gases).
Ref IGE/UP/10: Installation of flued gas appliances in industrial
and commercial premises.
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