
16
mexico HE
-
Installation & Servicing
InstallatIon
15 gAs CONNECTION
gAs CONNECTION
The boiler gas connection is built into the pre-piping
frame.
IMpORTANT
. the gas service cock is sealed with a non-
metallic fibre washer seal so must not be overheated
when making capillary connections.
Refer to Fame 1 for details of the position of the gas
connection.
Ensure that the gas supply pipe does not foul the boiler
casing.
Refer to Frame 40 for details of the pressure test point
position.
The boiler flow and return connections are built into the pre-piping frame.
Note.
For heating loads in excess of 60 000 Btu/h use 28mm x 22mm
connectors to connect the boiler flow and return pipes to 28mm.
If flow and return pipes are required to run behind the boiler, this can be
facilitated by fitting the boiler in line with the front of 600mm deep kitchen
units thus creating a 70mm space behind the boiler.
16 BOILER WATER CONNECTIONs
mxhe7593
Gas
Flow
Return
IMpORTANT.
Ensure that, during the cutting
operation, masonry falling outside of the building
does not cause damage or personal injury.
Note.
The template shows the position of the flue hole
centres lines. (Flue options can be flush to wall
or in line with 600mm deep kitchen units)
1.
Extend flue centre line vertically, (for rear, left
or right as appropriate), up to 690mm (centre
line of flue).
2.
Mark onto the wall the position of the flue
duct hole.
3.
Cut the flue hole preferably with a 125mm
(5”) coreboring tool, ensuring that the hole is
square to the wall.
4.
Remove the template from the floor.
14 FLUE hOLE TEMpLATE
mxhe7986
690mm
(27
1
/
4
")
127mm (5") dia.
flue hole
C for boiler pushed
back to wall
L
Note.
If only the terminal pack
‘B’ is used (up to 775mm) no flue
incline is required.
IN
s
T
ALLA
TION
Summary of Contents for he15
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