pg. 14
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
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 .
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
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 FOR H
WING FOR H
WING FOR H
WING FOR H
WING FOR H
2
2
2
2
2
0 / COMP
0 / COMP
0 / COMP
0 / COMP
0 / COMPA
A
A
A
ACT
CT
CT
CT
CT WITH
WITH
WITH
WITH
WITH AIR/CASED BOILER
AIR/CASED BOILER
AIR/CASED BOILER
AIR/CASED BOILER
AIR/CASED BOILER TUBES
TUBES
TUBES
TUBES
TUBES
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 max temperature t setting.
DAR
SCA
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: mixing valve
DAR: from water mains for make-up
SCA: discharge
BOI
DAR
SCA
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: mixing valve
DAR: from water mains for make-up
SCA: discharge
BOI: Air-cased boiler