Table of Contents
Advertisement
TERMINAL
The terminal assembly can be adapted to accommodate
various wall thicknesses. Refer to Frame 26.
AIR SUPPLY
It is NOT necessary to have a purpose-provided air vent in the
room or internal space in which the boiler is installed. Neither
is it necessary to ventilate a cupboard or compartment in
which the boiler is installed, due to the low surface
temperatures of the boiler casing during operation; therefore
the requirements of BS 6798, Clause 12, and BS 5440:2 may
be disregarded. In IE the requirement of IS 813:2002 may be
disregarded.
WATER CIRCULATION SYSTEM
The central heating system should be in accordance with BS.
6798 and, in addition, for smallbore and microbore systems,
BS. 5449.
Draining taps MUST be located in accessible positions, which
permit the draining of the whole system. They should be at
least 1/2" BSP nominal size and be in accordance with BS
2879.
WATER TREATMENT
THERMOSTATIC RADIATOR VALVES (TRV)
Ideal Stelrad Group recommend that heating systems utilising
full thermostatic radiator valve control of temperature in
individual rooms should also be fitted with a room thermostat
controlling the temperature in a space served by radiators not
fitted with such a valve as stated in BS. 5449.
When thermostatic radiator valves are used, the space heating
temperature control over a living area having a heating
requirement of at least 0.9kW (3000Btu/h) of the boiler heat
output should be achieved using a room thermostat whilst
other rooms are individually controlled by thermostatic radiator
valves. A higher proportion of TRVs may be used, provided that
a bypass between the boiler flow and return is fitted, to ensure
adequate flow when all TRVs are closed - however this is NOT
recommended as a large proportion of TRVs can restrict water
circulation and inhibit the condensing mode of condensing
boilers, reducing fuel economy.
For further information refer to the 'Good Practice Guide 143', a
publication of the Energy Efficiency Office, available from the
Building Research Establishment, Garston, Watford WD2 7JR.
Tel: +44 (0) 1923 664258.
10
- see Frame 9
GENERAL
ELECTRICAL SUPPLY
WARNING. This appliance MUST be earthed,
Wiring external to the appliance MUST be in accordance with
the current I.E.E. (BS.7671) Wiring Regulations and any local
regulations which apply. For IE reference should be made to
the current ETCI rule for electrical installations.
The point of connection to the mains should be readily
accessible and adjacent to the boiler.
Note. The fan voltage is 325V DC.
CONDENSATE DRAIN - Refer to Frame 19
A condensate drain is provided on the boiler. This drain must
be connected to a drainage point on site. All pipework and
fittings in the condensate drainage system MUST be made of
plastic - no other materials may be used.
IMPORTANT.
Any external runs must be insulated
The drain outlet on the boiler is standard 3/4in (21.5mm)
overflow pipe.
istor system store -
Installation and Servicing
Hide quick links:
Advertisement
Table of Contents
