Boiler Installation; Flue Installation; Flue Components; Rear Flue Options _ Greenstar - All Models - Bosch WORCESTER Greenstar Heatslave II External 12/18 Installation, Commissioning And Servicing Instructions

Installation
5.3

Boiler installation

WARNING: This appliance is serviced & repaired
externally.
▶ 230 V external equipment should not be installed,
serviced or repaired in adverse weather conditions.
This appliance is installed and serviced externally to the
property, but the engineer must have access to the
inside of the property when installing or servicing the
appliance.
E
3
5
G
H
B
4
A
8
M
Fig. 27
The cabinet is not load bearing it only provides weather
protection for the boiler inside.
1. Mark position of the 100mm services duct on the exterior wall and
make a hole through.
2. Remove the screws securing the base panel to the transit pallet and
lift the boiler off the pallet and into its installation position taking care
not to scrape the base panel across the hard standing.
Do not attempt to lift and position the boiler on your own.
Do not use the copper pipes to move the boiler.
– Fasten the base to the hard standing using the holes provided.
Care should be taken to ensure that the base is level.
3. Remove the screws [D] from each corner of the top panel [E] and lift
up to remove.
To release the back panel, remove the two screws from the bottom
corners and lift the panel and pull towards to remove.
Store the panels safely away from the installation point.
4. Remove the key [A] for the door fasteners from the literature pack.
Using the key, turn the latches at the bottom of the front panel [B]
through 90° to release the panel. Lift the panel and pull towards you
to remove. Store the panel safely away from the installation point.
5. Pull control box drawer [G] forward.
22
D
D
C
7
L
K
3
J
6
2
x4
9
O
P
– Depress the two levers [H], one on either side beneath the slide
rail, to release the control box and pull fully forward.
– Swivel the complete control box assembly upwards.
6. Swivel the expansion vessel [J] and support bracket out of the boiler,
taking care not to snag any electrical cables or kink the flexible hose.
7. Unplug the burner lead [K] from the control box lead [L].
8. Loosen the flexible air duct clamp [M] and remove the air duct from
the burner.
9. Undo and remove the retainer [O] on top of the burner. The burner
[P] can now be removed from the heat exchanger. Store the burner
and retainer nut safely away from the boiler.
– Measure the 100mm Ø services duct to give at least 10mm inside
the casing and to finish flush with the interior wall surface, cut to
size and fit the duct. Fit the 100mm sealing ring where the duct
enters the casing and seal the joint to the exterior wall and inside
the cabinet with a suitable sealant.
5.4

Flue installation

5.4.1

Flue Components

2
1
6
10
Fig. 28 Flue components
[1] Air inlet clamp
[2] Telescopic air inlet section & acoustic insulation
[3] 80mm Ø flue pipe (including seal)
[4] Air box mounting bracket
[5] Air box gasket
[6] Air box
[7] Air box cover
[8] Flue terminal
[9] Air box cover screws x 6
[10] Mounting screws x 4 (Accessory pack)
5.4.2

Rear Flue options _ Greenstar - all models

NOTICE:
▶ Ensure inner flue is cut to the correct length as
specified in Table 5 before fitting.
80mmØ flue pipe length L in mm
Flue outlet
Rear
Table 5 Flue pipe lengths
Greenstar Heatslave II External
4 5
3
7
8
9
6720807912-05.2Wo
Greenstar Boilers
Heatslave II
465
2022+ 6 721 843 980 (2022/01)