page no. 23 of 48
LNVx Range Users, Installation & Servicing Instructions Doc Ref M104 issue 1.0 Sep 2018.
weather with silicon sealant or similar.
3. Fit the twin to concentric adapter to the terminal
section and extend the flue and combustion air ducts to
the heater using straight lengths.
Fit an adjustable length prior to the unit, to facilitate flue
disconnection for servicing. Extend the adjustable lengths
to make the final connection to the appropriate heater
inlet/outlet spigots.
4. Ensure that internal silicon sealing rings are in place and
that all tubes are pushed fully home. Secure concentric
lengths with the locking bands provided.
Fig 1a. Individual system - Type C12 horizontal
Flue Socket
Adjustable Lengths
Lengths
Terminal
Combustion Air Socket
Single to Twin Adaptor
Maximum 6m, Minimum 980mm
1. Locate the position of the flue terminal cut a hole in the
roof to suit.
2. Fit the flashing and the flue terminal so that the lower
edge of the outer case is over the top of the flashing.
Weather with silicon sealant or similar.
Fit a condensate drain length into the flue socket on
the heater and an equivalent straight length onto the
combustion air socket.
3. Fit the twin to concentric adapter to the terminal
section and then extend down to the heater using straight
lengths.
Fit adjustable lengths as the final connection pieces, to
facilitate flue disconnection for servicing. Extend the
adjustable lengths to make the final connection but
do not exceed the maximum extended length so as to
maintain joint integrity.
Extend the drainage off take of the condensate drainage
length to a suitable gully or drain.
4. Ensure that internal silicon sealing rings are in place and
that all tubes are pushed fully home. Secure concentric
lengths with the locking bands provided.
Fig 1b . Individual system - Type C32 vertical
Terminal
Single to Twin Adaptor
Lengths
Adjustable Lengths
Combustion Air Socket
Flue Socket
Flashing
Condsensate
Drain Lengths
M
ax
im
um 6
m
, M
in
im
um 8
0Ø
=1
48
0m
m; 1
00
Ø
=1
56
0m
m; 1
30
Ø
=1
56
0m
m
1. Complete the run of flue sections from the terminal
spigot to the flue outlet socket of the heater generally as
described in 2.2.4.1. and 2.2.4.2., ensuring that the internal
silicon sealing rings are in place.
2. It is recommended that both air inlets are utilized and
that both are fitted with the mesh inlet plates supplied. In
addition a 90° bend should be fitted to the rear inlet, the
inlet opening of the bend facing to the side of the heater i.e.
away from the main air fan.
Fig 2a. Exhaust only system -Type B22 horizontal
Flue Socket
Adjustable Lengths
Lengths
Terminal
Option 1: Combustion Air Entry
(fitted with inlet grille)
Maximum 12m
Option 2:
Combustion Air Entry
(fitted with inlet grille)