Terminal; Air Supply; Water Circulation System; Boiler Control Interlocks - IDEAL LOGIC CODE COMBI ESP1 26 Installation And Servicing

SECTION 1 - GENERAL

1.10 TERMINAL

The terminal assembly can be adapted to accommodate various
wall thicknesses. Refer to Section 1.16.

1.11 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.

1.12 WATER CIRCULATION SYSTEM

IMPORTANT.
A minimum length of 1 metre of copper pipe MUST be fitted
to both flow and return connections from the boiler before
connection to any plastic piping.
The central heating system should be in accordance with
BS.6798 and, in addition, for smallbore and microbore systems,
BS.5449.
WATER TREATMENT - see Section 1.19.

1.13 BOILER CONTROL INTERLOCKS

Central heating systems controls should be installed to ensure
the boiler is switched off when there is no demand for heating, in
compliance with Building Regulations.
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.
When thermostatic radiator valves are used, the space heating
temperature control over a living / dining area or hallway having
a heating requirement of at least 10% of the minimum boiler
heat output should be achieved using a room thermostat, whilst
other rooms are individually controlled by thermostatic radiator
valves. However, if the system employs thermostatic radiator
valves on all radiators, or two port valves, then a bypass circuit
must be fitted with an automatic bypass valve to ensure a flow
of water should all valves be in the closed position.

1.14 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 rules for electrical installations.
The mains supply to the boiler and system wiring centre shall
be through one common fused double pole isolator and for new
heating systems, and where practical replacement installations,
the isolator shall be situated adjacent to the appliance.

1.15 CONDENSATE DRAIN

)
(Refer to Section 2.14
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 in accordance with BS 6798.
The drain outlet on the boiler is sized for standard 21.5mm
overflow pipe. It is a universal fitting to allow use of different
brands of pipework.
13
Installation and Servicing