Assembling The Casing/Multi-Casing Set - Hamworthy Purewell Installation, Commisioning And Maintenance Instructions

Figure No. 7 - Assembling the Casing/Multi-Casing Set.
Multi-casing.
Note: Where boilers are in Modular form, i.e. MP360
(3 x 120kW), a multi-casing pack is provided for each
additional boiler. For example: a triple boiler module
will require: - 1 off single casing pack plus 2 off multi-
casing packs. If the support bar (bottom rail of item
22) has not been pre-assembled, the following
procedure must be taken: -
1) Loosen the nuts that clamp the boilers together, (1
front and 1 rear). Remove the bolt, spacer and nut
assembly.
2) Position the support bar (item 22) between the boiler
baskets. Assemble using the "pozi-pan head" screws
(item 13) and M6 nuts (item 3).
3) Select the remainder of item 22: front, top, and rear
bars and fit the 'U' nuts (10 off item 4), the latch (2 off
item 2) and door location brackets (2 off item 7). The
rear member uses 6 off 'U' nuts (4 off in the two lower
pairs of holes and 2 off in the angle bracket at the
top).
Assemble the frame using the No 8 self-tapping
screws (item 5), the M6 pan head screws and washers
(items 12 and 13).
Single and multi-casings.
4) Select the both side panels (items 17 & 18) and fit
the latches (item 2), 'U' nuts (item 4) and location
brackets (item 7) as shown opposite.
NOTE ! * = Single casing set
HAMWORTHY HEATING LTD.
5) Attach side panels to the basket using items 3, 12,
13 and 14. Attach back panel. DO NOT FULLY
TIGHTEN SCREWS.
6) Locate the control panel, and fit using No. 8 x
self tapping screws (item 5).
7) Locate the top panel and fit the strikers (item 2)
NOTE! L/L fit all four, D/D two at rear only. Ensure the
blade is fitted as shown. Fit the 'U' nuts to the top
panel. Place the top panel in position and pass the
draught diverter through to locate into boiler spigot. Fit
the draught diverter into the boiler hood spigot and
ensure a complete seal is made between hood and
diverter. For Low Line models the flue is connected
directly into the boiler spigot. Ensure the seal is made
between flue pipe and spigot. Refer to section 10.2:
Connection of Boilers to the Flue System for further
information. With the flue correctly fitted, lower the top
panel and press the latch and strikers together and
secure at the front with 2 off No. 8 self tapping screws
(item 5) through the control panel top edge.
8) Tighten the back panel screws (item 5) and fit screw
covers (part of item 14) to item 13 on side panels.
9) Attach the location pins (item 8) to the two holes in
the 25mm return on the door by using M4 x 20 pan
head screws (item 9), washers (item 11) and nuts (item
10). To fit the door, locate the slotted holes in the bottom
onto the location brackets (item 7). Close the door
against the control panel fascia ensuring the locating
pins enter the holes. Turn the
of the door to lock.
** = Multi casing set
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PUREWELL AUTOMATIC IGNITION
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# = Lowline only
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2
turn latch in the centre
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