11
2. For THe insTaller
2.1 installation instructions
This water heater must be fitted in a
location which will permit the provision of
an approved flue system and adequate
ventilation.
A service clearance of 15 cm at the
sides and rear of the unit and 60 cm at
the front of the unit should be allowed
for ease of servicing. Adequate distance
must be allowed between the top of
the unit and any obstruction or ceiling
to allow the flue baffle and anode to be
inspected, cleaned or in the case of the
anode replaced if necessary.
The water heater must stand on a level
surface resistant to heat and with suf
-
ficient strength to support the weight of
the unit when full of water.
This water heater must
not
be installed
in a bath room, bedroom or in a cup
-
board opening on to such rooms. This
water heater must
not
be installed in any
area where flamable materials are used
or stored.
Insufficient ventilation may give rise to
a risk of fire, explosion or suffocation. If
in doubt consult the national and local
regulations governing the installation of
gas appliances or your local British gas
service department.
2.1.1 installation
The installation of this water heater
should be carried out by a suitably qua
-
lified competent person. It is a criminal
offence for unqualified persons to install
gas equipment.
Installation should be carried out in
accordance with all local authority and
building regulations, local water authority
and fire regulations and the following Bri
-
tish standards: 5440, 5546, 6644, 6700,
6798 and 6891.
Some chemicals produce vapours which
can cause rapid failure of thermocou
-
ples, burners and storage tanks if they
are drawn into the combustion air supply.
Therefore if this water heater will be
used to supply hot water to:
- hairdressers,
- dry cleaners
- industrial degreasing processesor
any other area where compounds
containing halogens are used and
stored, care should be taken that all
primary and secondary air is drawn
from outside atmosphere free of
such contaminents.
For further advise contact Lochinvar Ltd..
2.1.2 Water circulation system
'Lochinvar Ltd.' are suitable for con
-
nection to vented, unvented and pumped
pressurised systems. In each case
appropriate valves and fittings should be
used to ensure the system complies with
the requirements of the water by laws,
and appropriate building regulations.
When fitting it is essential the rules of
'good practice' are applied at all stages
of installation.
Vented systems
If the water heater is to be connected to
a cold feed tank or cistern the hot water
supply pipe must include an open vent
which discharges over the cold feed
cistern. The cold feed cistern must have
an actual capacity of greater volume
than the hourly recovery rate of the water
heater(s) which it supplies.The minimum
actual capacity is 50 gallons or 227 litres.
Unvented
To install an 'Lochinvar Ltd.' on an
unvented cold water supply system a kit
of valves and fittings listed by the water
research centre and complying with part
G3 of the current building regulations
should be used.
