Technical data

INSTALLATION & SERVICING INSTRUCTIONS
BYPASS DIAMETER 15mm diameter.
GAS CONNECTION Rc 1/2 (1/2 in BSP int)
WATER CONNECTION Flow 22mm compression fitting LH side.
Return 22mm compression fitting RH side.
ELECTRICITY SUPPLY 240V-50Hz, fused at 3A.
MINIMUM STATIC HEAD 0.2m (8in)
MAXIMUM STATIC HEAD 30.5m (100ft)
Page 4
MAXIMUM BOILER THERMOSTAT SETTING 79°C (174°F)
STANDARD FLUE Wall thickness from 230mm (9in) to 355mm (14in)
MINIMUM CLEARANCES FOR INSTALLATION AND SERVICING
Left and right side 6mm (1/4in)
Top of boiler 75mm (3in)
Underside of boiler 125mm (5in)
Front of boiler 610mm (24in)
FREE AREA OF CUPBOARD VENTS
MODEL AIR FROM ROOM
cm
2
in
2
AIR FROM OUTSIDE
cm
2
in
2
WM15/30 BFa 99 15 49 8
WM30/40 BF 132 20 66 10
WM40/50 BF 165 26 82 13
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