Worcester Greenstar 24i junior User Instructions & Customer Care Manual page 8

+ 30mm
above elbow
200mm*
100mm**
600mm***
200mm
**
***
WORCESTER BOSCH GREENSTAR 24i/28i Junior
8 716 107 338b (11.05)
GENERAL NOTES
BOILER CLEARANCES - UNVENTILATED
COMPARTMENT
The diagram opposite shows the minimum
space required to install and service the boiler
inside an unventilated compartment.
** Space required for unventilated areas with a
removable door or panel.
*** 600mm clearance required to a fixed
surface for servicing.
200mm*
* This space can be reduced to 50mm for one
side only provided that the total side clearances
add up to 400mm or more.
VENTILATION
This is a room sealed appliance and does not
require any air for combustion from inside the
property. If the appliance is fitted into a
cupboard or a compartment is built around the
appliance after installation, then the
compartment must be separated from the boiler
space by a perforated non-combustible partition
as described in BS 6798.
Notwithstanding the requirements of BS 6798
and BS 5440 there is no need for ventilation
openings to be provided in the compartment
because of the low heat loss from the appliance
casing, if the clearances shown are maintained.
Do not operate the appliance if the flue terminal
fitted on the outside wall or roof is obstructed
or damaged.
PUMP ANTI-SEIZURE
If there has been no heating demand for 24
hours the boiler will run the system pump for a
few seconds to reduce the possibility of pump
seizure during long periods of inactivity, which
is usually more frequent during the summer
months.
SAFETY PRECAUTIONS
5