Worcester Highflow 400 RSF Installation And Servicing Instructions page 18

11.3 FIXING THE APPLIANCE FOR ALL FLUE OPTIONS.
To gain access to the appliance remove the cabinet front and top
panel and place the facia and control box in the Service Position :
i) Lift the cabinet front panel off the top location and clear
the lower return over the kick strip. See Fig. 14.
ii) Unscrew the two screws securing the facia to the outer
edges of the cabinet accessible under the facia. Ease the
facia and control box forwards on the slide rails until fully
extended. See Fig. 14.
iii) Lift the assembly upwards through 90° into Service
Position. Lodge in the Service Position on the outer
locations. See Fig. 14.
iv) Unscrew the two screws behind the control panel securing
the cabinet top panel. See Fig. 14.
v) Lower the facia and control box to the fully extended
position. Ease the cabinet top panel forwards
approximately 20 mm and lift clear of the appliance.
See Fig. 14. Return the facia and control box to the Service
Position.
NOTE: The weight of the appliance empty is 96 Kg (212 lb), more
than one person will be required when moving the appliance.
Fig. 14. Cabinet, facia, control box and flue assembly fixing screws.
To gain access to the appliance:
1. Lift cabinet front panel L off top
location and clear the return edge over
the kick strip.
2. Remove screws A and ease facia and
control box forwards on the slide rails.
3. Remove screws B, accessible under
cabinet top panel. Ease panel
forwards clear of location C and
remove.
4. Lift facia and control box through 90¡
into the service position. Lodge in
position on the outer locations.
To gain access to the control box
from the service position:
1. Pull the thermostat knobs F and G
clear of the facia.
2. Remove screws E.
3. Ease facia out of control box. Take
care not to over stretch the capilary
tubes or wiring.
4. Support the facia out of the control box
when carrying out installation or
service operations.
D
Lift facia and control box
into the service position
When the appliance is flued to the rear ensure the flue position,
located on the rear of the appliance, is directly in line with the
hole in the wall.
For all other flue applications, the centre of the flue position must
be in line with the centre-lines for the Rear Flue position,
previously marked. See Fig. 13.
Always support the appliance pipework when tightening.
SEALED SYSTEM.
Connect a 22 mm copper drain pipe to the discharge connection
at the rear of the appliance.
Ensure: i) any discharge does not fall onto electrical
components or where it might be a hazard to the
user. See Fig. 15.
ii) the drain pipe must fall throughout its length.
OPEN VENT SYSTEM.
If the appliance is to used on an open vent system the expansion
vessel and flexible hose are not required. Remove from the
bottom manifold connection and discard. Fit the 22 mm copper
vent pipe, supplied as an optional extra, to this connection. See
Fig. 18.
To access the open vent connection remove the pump head.
A
K
J
A Facia and control box fixing screws
B Cabinet top panel fixing screws
C Cabinet to panel fixing lugs
D Flue assembly clamping screw
E Facia fixing screws
F Hot water control thermostat knob
G Heating control thermostat knob
H Kick strip fixing screws
J Cabinet side panel front location
K Cabinet side panel fixing lugs
L Cabinet front panel (no fastenings)
E
M Primary system drain. Remove kick
strip for access
18
C
B
E
G
F
L
M
H