Pipework Positions / Flue Opening - Worcester Greenstar Heatslave 12/18 Instruction Manual

8 716 106 252f 30/3/10 12:56
All dimensions in mm
25
50.5
752
675
633
628
603
590
X
X
+5
20
PIPEWORK POSITIONS &
FLUE OPENING
Page 20
335
F
A
163
D
B
G
185
C
17
130
J
FRONT VIEW
Y
Y
3
340
105
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR HEATSLAVE 12/18-18/25-25/32
PIPEWORK POSITIONS &
FLUE OPENING
CAUTION: Ensure there are no pipes,
electric cables, damp proof courses or
105
other hazards before drilling.
SAFETY:
F
All relevant safety precautions must be undertaken.
Protective clothing, footwear, gloves and safety
goggles must be worn as appropriate.
PIPEWORK POSITIONS:
E A to H (opposite) show the flue and pipe positions:
A - CH flow 22mmØ copper (28mmØ on
B - DHW flow 22mmØ copper
J
C - DCW mains water inlet 15mmØ
52
D - CH return 22mmØ copper (28mmØ on
E - Optional combined feed and expansion and
278
F - Flue outlet
G - Pressure relief pipe 15mmØ
SIDE VIEW
J - Condensate outlet 21.5mmØ
NOTE: For servicing purposes, keep the
Z
FLUE OPENING:
** IMPORTANT: for horizontal flues, increase
this height by 52mm for every 1000mm of
horizontal length that the flue opening is
away from the boiler.
NOTE: All horizontal flue sections must rise
4
105
1
Z
2
752**
25/32kW model)
25/32kW model)
open vent pipe '' BSP
1
condensate and pressure relief
discharge pipes away from
components and pipework
connections.
Follow the diagram opposite to mark the
centre of the flue (1, & 2) for rear opening,
(2 & 3) for side opening or
(1 & 4) for top opening.
away from the boiler by 52mm per metre
to ensure that condensate flows back into
the boiler for safe discharge via the
condensate waste pipe.
Make an opening (X, Y or Z) through the wall
using a core drill or similar at a size relative to
the wall thickness as shown below:
125mmØ flue:
Wall thickness Flue hole size
150 - 240mm 155mmØ
240 - 330mm 160mmØ
330 - 420mm 165mmØ
420 - 500mm 170mmØ
8 716 106 252f (03/2010)