Worcester Greenstar Ri Manuel d'instructions télécharger pdf (Page 52)

MAIN FUNCTION

NO

YES

PERMANENT

MAIN SUPPLY

TO BOILER

BOILER

DEMAND

FROM

SYSTEM

Fan to

start

speed.

Pump ON.

Prepurge

then ignition

spark

4 seconds

BLUE

LIGHT

ON

BURNER

LIT?

GREEN

FLAME

LIGHT

ON

Fan run

10 seconds

then re-spark

5th

attempt?

LOCKOUT

Stabilisation

then fan low

45 seconds

Fan (& gas)

modulation

to achieve

set

temperature

(35-82°C)

END OF

BOILER

DEMAND

Gas valve

OFF

Pump run 3

minutes

Fan run 30

seconds

Over temperature shut-

down if water tempera-

ture is 5°C above set

value.

Fan overrun

30 seconds

3 minute wait

Boiler temperature

below 8°C

Run autofroststat

function

PROTECTION SYSTEMS

Pump antiseize

Pump run 5 seconds

every 24hrs

NO

YES

MAIN FUNCTION

INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR Ri

8 716 115 168a (06/2008)

51

50

FAULT FINDING

& DIAGRAMS

1 2 ... 47 48 49 50 51 52 53 54 55 56

Commentaires sur ces manuels

Pas de commentaire