Hamworthy Sherborne Series, Installation, Commissioning And Servicing Instructions

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HAMWORTHY HEATING LTD
12
SHERBORNE 500001167/E
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Fit the burner assembly back into the heat exchanger using its existing fastenings & reconnect the pressure feedback tube
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Swing the boiler back to wall engaging the horizontal leg of the gas pipe with the fitting on the inlet to the gas valve.
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Secure the boiler to the wallplate at the left bracket using the M10 nuts & bolts supplied.
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Tighten the compression fittings to provide a gas tight seal. A soundness check on these joints must be carried out.
5.8 Connection of Boiler(s) to the Flue System
Dependent on installation a number of flue options are available (refer to Appendix C). In all instances, the flue must be obtained
from HHL or in the case of connection to an open flue system, the ducts up to the chimney must be obtained from HHL.
The maximum allowable flue length must be determined in accordance with Appendix C It is also important, for service
requirements, that the flue system is fully self-supporting & that prior to commissioning a check has been made to ensure that the
pipe is clear & free from obstruction.
5.8.1 Connection of Through Wall Horizontal Balanced Flue Terminal – 80/125mm.
The flue terminal should be cut to length. Note: Deburr both tube ends & ensure that the cuts are square to avoid damage to the
flue seals when assembling the flue system.
•
From the outside of the building position the outer wall sealing plate over
the cut hole so that there is a 2° slope from the terminal to the boiler
connection to allow any condensate to run back to the boiler.
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Mark the four securing holes, drill & plug the holes & secure the wall
plate.
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From the inside of the building place the inner wall sealing plate over the
cut hole so that there is a 2° slope from the terminal to the boiler
connection to allow any condensate to run back to the boiler.
•
Check the position of the wall plate using the flue support cradle located
on the 2 M6 studs on the wall frame.
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Mark the four securing holes, drill & plug the holes.
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Fit the flue terminal from the inside of the building ensuring the correct
position of the terminal discharge
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Fit the inner wall sealing plate over the flue, securing it to the wall.
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Fit the flue support cradle over the end of the flue pipe.
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Fit the flue concentric adaptor to the rear of the flue protruding into the boiler.
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Ensure orientation of the terminal is correct at the terminal outlet & the concentric adaptor is fully engaged onto the flue.
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Secure flue support cradle to the wall frame with 2xM6 nuts ensuring the concentric adaptor is located in the cradle.
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Engage the air inlet box onto the left hand connection of the concentric adaptor
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Fit the appliance connector duct between the flue outlet in the aluminium boiler casing & the flue duct.
5.8.2 Connection of Extended Lengths of Horizontal/Vertical Balanced Flue – 100/150mm.
Note:
the flue support cradle is not required for this installation & should be discarded.
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Make a hole Ø170-180mm through the wall or roof for the flue
termination point (refer to appendix C)
.
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Secure the elbow mounting bracket to the wall frame using 3xM6 nuts
& washers.
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Locate the elbows in the mounting bracket lugs & fit appliance
connector duct between flue outlet on the boiler & the discharge
support elbow.
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Insert the inlet support elbow into the air inlet box.
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Insert the 80-100mm adaptors into the elbow outlets & engage twin
pipe concentric adaptor into the left hand (air) 100mm tube orientating
so the discharge socket is coaxial with flue discharge adaptor.
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Fit the flue make up piece through the socket into the discharge
adaptor so either a concentric elbow or straight vertical section can be
fitted.
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Fit remaining flue components on route to terminal discharge ensuring a minimum 2° slope & the flue system
is self-supporting using wall brackets where necessary.
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When terminating the flue ensure the joint through the wall/roof is made good & weatherproofed. Whilst
carrying out the above procedure ensure that all seals are correctly located & provide gas tight joints.
•
The top of the plastic boiler cover has a D shaped recess for the vertical flue exit point. Using a suitable fine
toothed hacksaw or jigsaw, cut around the inside of the recess to provide the flue outlet.
19
5
S
ite
V
er
ify
55
Concentric
Appliance
Connector
Adapter
Sealing Plates
Inner / Outer Wall
Ma
x 5
05
Flue support
cradle
195
S
ite
V
erify
205
Concentric
Appliance
Connector
Adapter
Sealing Plates
Inner / Outer Wall
M
ax 355
Flue support
cradle