Thermolec Standard Boiler - Manual (Page 19)

TEM PE RA T U R E / T EM PÉ RA TU RE
PR ES SU R E / PR ES SI ON
AIR
PURGER
BLEEDING V
A
L
V
E
SHUT
-OFF
VA
LV
E
ELECTRIC
BOILER
TEMPERA
TURE /
PRESSURE GAUGE
SUPPL
Y
T
O
RADIA
T
ORS
RETURN FROM
RADIA
T
O
RS
W
A
TER FEED
EXP
ANSION
TA
N
K
MAINTENANCE
VA
LV
E
DUAL-ENERGY CONTROLLER
SAFETY
V
A
L
V
E
POWER SUPPL
Y
ROOM THERMOST
A
T
MAINTENANCE
VA
LV
E
MAINTENANCE
VA
LV
E
MAINTENANCE
VA
LV
E
BURNER
DRAIN OR
PURGE V
A
L
V
E
PRESSURE
REDUCING V
A
L
V
E
OIL
/ GAS
BOILER
PUMP
CONTROL
DUAL-ENERGY SERIES INSTALLATION
(Illustration B)
OUTDOOR RESET
SENSOR
CIRCULA
TING PUMP
DRAIN
CONNECTION
AUT
OMA
TIC
AIR VENT
LOAD
MANAGEMENT
CONTROL
WA
T
E
R
FLOW