andrews NEOflo SC25/200, Инструкция по установке, эксплуатации и обслуживанию

Страница: 19 / 32

NEO fl o Water Heater 17 September 2015
VENTILATION REQUIREMENTS
Refer to BS 6798 and BS 5440:2 for additional informa-
tion
Open Flue Type B
23
Th e room in which an appliance is installed must have
a permanent air vent to outside air or to a room which
itself has direct access to outside air.
Installations in compartments require permanent
vents for cooling purposes, one at high level and one at
low level, either direct to outside air or to a ventilated
room. Both vents must pass to the same room or be on
the same wall to outside air.
Th e minimum free areas
required are given below.
A compartment containing an open- fl ued appliance
shall be labelled as follows:
IMPORTANT:
Do not block the vents. Do not use the compartment
for storage.
Th ere must be suf fi cient clearance around the appli-
ance to allow proper circulation of ventilation air. Th e
clearances required for Installation and Servicing will
normally be adequate. Fig. 2.1.
Th e effect of any type of extract fan in the premises
must be considered and an additional air inlet may be
needed from outside to counter the effect of the fan.
Room Sealed (Type C )
Where the appliance is installed in a ROOM or COM-
PARTMENT no ventilation is required.
GAS SUPPLY
Th e installation of the gas supply must conform, to the
British Standards and Codes of Practice listed in Sec-
tion 1 of this manual.
Th e appliance is fi tted with a gas isolating cock and
supply pipe of 22mm copper and can be supplied from
the rear, left or right.
Th e gas supply pipework must be fi tted with suitable
unions so the Heater can be safely removed for major
service or repair.
Natural Gas
Th e gas meter, regulator and supply pipework must
be sized so as to provide an adequate supply to the
Heater in addition to any other appliances connected
to the supply. (See Technical Data on the inside
cover for Pressure and Flow Rate requirements.)
Where the Heater is installed in a plant room or pur-
pose built compartment, a manually operated valve
must be
fi tted in accordance with the Gas Safety
(Installation and Use) Regulations. Th e valve must
be easily identi fi ed and readily accessible.
85 cm 2
85 cm 2 high level
170 cm
2
low level
170 cm
2
high level
340 cm
2
low level
In a room to outside
In a compartment
to outside
In a compartment
to inside