pg. XII
4.4 EXAMPLE OF HYDRA
4.4 EXAMPLE OF HYDRA
4.4 EXAMPLE OF HYDRA
4.4 EXAMPLE OF HYDRA
4.4 EXAMPLE OF HYDRAULIC DRA
ULIC DRA
ULIC DRA
ULIC DRA
ULIC DRAWING FOR H
WING FOR H
WING FOR H
WING FOR H
WING FOR H
2
2
2
2
2
O / COMP
O / COMP
O / COMP
O / COMP
O / COMPA
A
A
A
ACT ONL
CT ONL
CT ONL
CT ONL
CT ONLY HEA
Y HEA
Y HEA
Y HEA
Y HEATING .
TING .
TING .
TING .
TING .
4.5 EXAMPLE OF HYDRA
4.5 EXAMPLE OF HYDRA
4.5 EXAMPLE OF HYDRA
4.5 EXAMPLE OF HYDRA
4.5 EXAMPLE OF HYDRAULIC DRA
ULIC DRA
ULIC DRA
ULIC DRA
ULIC DRAWING H
WING H
WING H
WING H
WING H
2
2
2
2
2
0 / COMPACT WITH INTERSPACED BOILER COILS OR BOILER COILS
CAUTION: The water temperature in the boiler tubes in this case is not adjustable and depends on the systems's delivery temperature, that is
the boiler temperature setting. The boiler tubes can be installed on the water return circuit. Moreover, the Manufacturer recommends installing
a water softener in the domestic hot water system in order to prevent the formation of limescale deposits in the boiler tubes which could
compromise their functionality.
Caution: it is mandatory to earth the heater / boiler. If this instruction is not observed serious damage, which is not
covered by warranty, will result to the body of the heater / boiler. Have an electrician check the earthing. There
must be no electric potential (volts) between the earth of the generator and the actual earth of the plant. To prevent
electrochemical corrosion of the boiler body do not use galvanised pipes and fittings. Dedicated ground wires must
be used to ground all other materials .
Caution: it is mandatory to earth the heater / boiler. If this instruction is not observed serious damage, which is not
covered by warranty, will result to the body of the heater / boiler. Have an electrician check the earthing. There
must be no electric potential (volts) between the earth of the generator and the actual earth of the plant. To prevent
electrochemical corrosion of the boiler body do not use galvanised pipes and fittings. Dedicated ground wires must
be used to ground all other materials .
A : andata impianto riscaldamento
R : ritorno impianto riscaldamento
S : saracinesca
VNR : valvola di non ritorno
VEC : vaso di espansione chiuso per protezione impianto
VR : valvola riduttrice di pressione
VM : valvola miscelatrice termostatica punto fisso 55°c.
VSP: valvola saracinesca (da parzializzare in funzione
delle perdite di carico dell'impianto)
A :
heating plant delivery
R:
heating plant return
S :
gate valve
VNR: nonreturn valve
VEC: closed expansion tank for plant protection
VR:
reducing valve
VM:
thermostatic mixing valve, fixed point 55°C
VSP: gate valve (throttle according to pressure drop in the system )
DAR: From water mains for make-up
SC:
outlet
DAR
S C
A : andata impianto riscaldamento
R : ritorno impianto riscaldamento
S : saracinesca
VNR : valvola di non ritorno
VEC : vaso di espansione chiuso per protezione impianto
VR : valvola riduttrice di pressione
VM : valvola miscelatrice termostatica punto fisso 55°c
VSP: valvola saracinesca (da parzializzare in funzione
delle perdite di carico dell'impianto).
A :
heating plant delivery
R:
heating plant return
S :
gate valve
VNR: nonreturn valve
VEC: closed expansion tank for plant protection
VR:
reducing valve
VM:
thermostatic mixing valve, fixed point 55°C
VSP: gate valve (throttle according to pressure drop in the system )
DAR: From water mains for make-up
SC:
outlet
BAI: Interspaced boiler coils
DAR
S C
BAI
