PROTECTION FUNCTION
Boiler temperature
below 8°C
Run autofroststat
function
Pump antiseize
Pump run 5 seconds
every 24hrs
PROTECTION FUNCTION
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 25Si/30Si
8 716 107 337b (11/05)
58
FA
U
LT
F
IN
D
IN
G
& D
IA
G
R
A
M
S