GENERAL NOTES
WORCESTER BOSCH GREENSTAR HIGHFLOW 440
6 720 611 731a (08.04)
5
HOT AND COLD FLOW
The flow of water demanded from both hot and
cold service outlets is dependent on the mains
supply, it may not be possible in some
installations to operate all outlets
simultaneously.
WATER MAINS FAILURE
If there is a failure of the mains water supply
then no water will be available at a tap or
shower until the mains supply is restored. The
appliance will still operate in the central heating
mode.
USE IN HARD WATER AREAS
In exceptionally hard water areas a device to
prevent scale formation may be fitted.
Installation of a scale inhibitor assembly should
be in accordance with the requirements of the
local water company. An isolating valve should
be fitted to allow for servicing.
Alternatively the maximum temperature of the
domestic hot water may be reset to about 45°C
which will reduce the risk of scale formation in
these hard water areas.
VENTILATION
This is a room sealed appliance and does not
require any air for combustion from inside the
house. 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 and BS 5440.
Notwithstanding the requirements of BS 6798,
there is no need for ventilation openings to be
provided in the compartment because of the
low heat loss from the appliance casing if
clearances on the next page are observed.
Do not operate the appliance if the flue terminal
fitted on the outside wall or roof is obstructed
or damaged.
PUMP
The pump is set by the manufacturer and must
not be adjusted.
PUMP ANTI-SEIZURE
If there has been no heating demand for 24
hours, the pump will run for a few seconds to
reduce the possibility of pump seizure, which is
possible during long periods of inactivity.
GENERAL NOTES
INTRODUCTION
