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L
NVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.
Gas Safety (Installation & Use) (Amendment)
Regulations
It is law that all gas appliances are installed,
adjusted and, if necessary, converted by
qualified persons* in accordance with the
current issue of the above regulations.
Failure to install appliances correctly can lead to
prosecution. It is in your own interests and that of safety
to ensure that the law is complied with.
* Gas Safe Registered Engineer
Checks to ensure electrical safety must be carried out by
a qualified person.
For new installations, the whole of the gas installation,
including the meter, should be inspected and tested
for soundness and purged in accordance with the
recommendations of IGE/UP/1 (Edition 2) or IGE/UP/2A
as appropriate.
The system should be checked to ensure that the
installation work has been carried out in accordance with
the design requirements.
Particular attention should be given to the correct
arrangement of delivery ducts and registers, return air
ducts and grills and general adequacy of return air paths.
For LNVx D and LNVx CCF units ensure that the duct work
is balanced so that the specified motor running currents
are achieved See section 1.2
The following preliminary checks should be made before
lighting the heater(s)
a) Ensure that the ELECTRICAL supply to the heater is
switched OFF.
b) Check that all warm air delivery outlets are open.
c) Check that all external controls are calling for heat.
d) If an MC200 or MC300 is being used ensure that the
control is set to winter operation.
NOTE: On initial lighting of the heater(s), it may
take some time to purge the internal pipe work
of air.
Model
15
20
25
35
40
45
50
60
70
90
120
140
Natural Gas G20
High Fire CO2 %
8.20
8.67
8.41
8.02
8.80
8.80
8.6
8.46
9.15
7.50
8.40
8.72
FGT (nominal) °C 143.8 147.6 154.5 150.5 153.2 130.7 152.0 149.7 158.6 132.0 153.0 128.0
Low Fire CO2 %
4.07
5.04
4.82
4.76
5.15
5.20
4.9
4.83
5.00
4.50
5.00
4.99
FGT (nominal) °C 105.2 119.7 123.4 124.0 123.1 105.7 120.5 115.0 121.7 123.0 121.0
98.4
Propane G31
High Fire CO2 %
9.00
9.20
9.40
9.8
9.86
10.02
10.0
9.50
9.60
7.50
9.40
9.31
FGT (nominal) °C 136.2 149.7 151.3 153.0 152.8 130.8 178.0 148.4 158.9 143.0 148.0 126.6
Low Fire CO2 %
4.54
5.90
5.43
5.9
5.92
5.93
5.90
5.64
6.07
4.80
5.60
5.97
FGT (nominal) °C 100.7 119.0 120.3 142.0 123.7 105.0 126.0 113.0 125.9 119.0 122.0
99.8