Worcester 35CDi Mk I Manuel de service télécharger pdf (Page 28)

28

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

Within four

minutes of last

hot water

demand

AND

primary

temperature

above 80°C

If heat

demand has

occured in last

30 minutes

Run pump

until primary

drops to

80°C

If heat

demand has

NOT

occured in last

30 minutes

Run pump

until primary

drops to

80°C

If primary

temperature

still increases

above 90° C

Run pump for

2 seconds

OVERRUN FUNCTION

AUTOFROSTSTAT FUNCTION

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