Worcester 28CDI Instrukcja Obsługi Pobierz pdf (Strona 30)

30

Within four

minutes of

last hot water

demand

AND

primary

temperature

above 80°C

If heat

demand has

occurred in

last 30

minutes

If heat

demand has

NOT

occurred in

last 30

minutes

Run pump

until primary

drops to

80°C

Run fan

until primary

drops to

80°C

If primary

temperature

still increases

above 90°C

Run pump for

two seconds

OVERRUN FUNCTION

AND

(Pulse pump

for 2 seconds

every 10

seconds

35CDi II)

Above

9°C

Commence normal

central heating mode

until temperature

reaches 30°C

5°C

to

9°C

Below

5°C

No demand

and primary

temperature

below 8°C

Internal

“Autofrostat”

demand

Wait in normal

off state for

30 minutes

Run pump for

four minutes

Monitor

central

heating

sensor

Return to

normal off

state

AUTOFROSTAT FUNCTION

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