Protection Function - Bosch Worcester 7 716 192 566 Installation Instructions Manual

Wall hung rsf gas fired condensing boiler, greenstar i system diverter valve kit
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BOILER FUNCTION
8.3

PROTECTION FUNCTION

AUTOMATIC INTERNAL FROST FUNCTION
Boiler automatic
frost function
(monitors internal boiler
primary temperature)
PUMP OVERRUN FUNCTION
End of boiler demand
(central heating or
domestic hot water)
PUMP ANTISEIZE FUNCTION
No central heating
demand after
a 24hr period
Fig. 25 Protection function
14
Internal boiler
temperature
between
8°C & 5°C
Internal boiler
temperature
below 5°C
Pump runs for 3 minutes
to dissipate heat from
the boiler into the system
Pump runs 5 seconds
A central heating demand
every 24hrs from
last time pump ran
Internal boiler
Pump runs
temperature
rises above 9°C
Internal boiler
Central heating
temperature
demand is activated
rises above 12°C
activated, pump runs
normally
Pump switches off
after a 3 minute
overrun period
Central heating
demand switches
off
Pump switches off
after a 3 minute
overrun period
6720643895-111.1Wo
i System Diverter Valve kit 6 720 645 222 (2012/09)

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This manual is also suitable for:

Worcester 7 716 192 567Worcester 7 716 192 568Worcester 7 716 192 409

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