pg. XI
4 . 3
4 . 3
4 . 3
4 . 3
4 . 3
HYDRA
HYDRA
HYDRA
HYDRA
HYDRAULIC DRA
ULIC DRA
ULIC DRA
ULIC DRA
ULIC DRAWING FOR HEA
WING FOR HEA
WING FOR HEA
WING FOR HEA
WING FOR HEATER H
TER H
TER H
TER H
TER H
2
2
2
2
2
O / COMP
O / COMP
O / COMP
O / COMP
O / COMPA
A
A
A
AC T
C T
C T
C T
C T
CAUTION: FOR THE DELIVERY, RETURN, MAKE-UP AND DISCHARGE CONNECTIONS USE FLEXIBLE TUBES HAVING A
LENGTH OF AT LEAST 70 CM TO FACILITATE MOVING THE APPLIANCE FOR MAINTENANCE.
CAUTION: A CONNECTION MUST BE MADE BETWEEN THE SAFETY VALVE AND THE OUTLET TO PREVENT DAMAGING
MATERIALS SURROUNDING THE BOILER/HEATER WHEN THE VALVE IS ACTIVATED.
(SEE PARA. 4.4 - 4.5 - 4.6 - 4.7 - 4.8 - 4.9).
M
0
D
A
F
E
P
X
H
1
A : Heating plant return
E : Safety valve 3 bar 1/2".
H : Safety thermostat 100° C.
O : Expansion tank 2.5 l for protection of
the boiler only.
X : Automatic relief valve.
D : Heating plant delivery tube 3/4".
F : Boiler Inlet - Outlet 3/4".
M : Pressure gauge 0-4 bar
P : System circulating pump.
1 : Boiler sensor
