pg. 15
A : andata impianto riscaldamento
R : ritorno impianto riscaldamento
S : saracinesca
VNR : valvola di non ritorno
VEC : vaso di espansione chiuso per protezione impianto
VM3V : valvola motorizzata 3 vie
TB : termostato bollitore
VR : valvola riduttrice di pressione
VM : valvola miscelatrice
4 . 6
4 . 6
4 . 6
4 . 6
4 . 6
EXAMPLE OF HYDRA
EXAMPLE OF HYDRA
EXAMPLE OF HYDRA
EXAMPLE OF HYDRA
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 HEA
0 HEA
0 HEA
0 HEA
0 HEATER / COMP
TER / COMP
TER / COMP
TER / COMP
TER / COMPA
A
A
A
ACT
CT
CT
CT
CT WITH BOILER COILS
WITH BOILER COILS
WITH BOILER COILS
WITH BOILER COILS
WITH BOILER COILS
In order to guarantee correct absorption of the heat produced by the generator is it is advisable to use a boiler tube with
volume and heat exchange capacity suitable for the power of the generator.
DAR
SCA
A: heating plant delivery
R: heating plant return
S: gate valve
VNR: nonreturn valve
VEC: closed expansion tank for plant protection
VM3V: 3-way motor-operated valve
TB: boiler tubes thermostat
VR: reducing valve
VM: mixing valve
DAR: from water mains for make-up
SCA: discharge
4 . 7
4 . 7
4 . 7
4 . 7
4 . 7
EXAMPLE OF HYDRA
EXAMPLE OF HYDRA
EXAMPLE OF HYDRA
EXAMPLE OF HYDRA
EXAMPLE OF HYDRAULIC DRA
ULIC DRA
ULIC DRA
ULIC DRA
ULIC DRAWING FOR H20 /COMP
WING FOR H20 /COMP
WING FOR H20 /COMP
WING FOR H20 /COMP
WING FOR H20 /COMPA
A
A
A
ACT
CT
CT
CT
CT WITH “KIT FOR
WITH “KIT FOR
WITH “KIT FOR
WITH “KIT FOR
WITH “KIT FOR THE PR
THE PR
THE PR
THE PR
THE PRODUCTION
ODUCTION
ODUCTION
ODUCTION
ODUCTION
OF INST
OF INST
OF INST
OF INST
OF INSTANT DOMESTIC HO
ANT DOMESTIC HO
ANT DOMESTIC HO
ANT DOMESTIC HO
ANT DOMESTIC HOT
T
T
T
T W
W
W
W
WA
A
A
A
ATER
TER
TER
TER
TER
“ (OPTIONAL).
Rubinetto di carico impianto riscaldamento
A : andata impianto riscaldamento VNR : valvola di non ritorno
R : ritorno impianto riscaldamento VEC : vaso di espansione
S : saracinesca chiuso per protezione impianto
VR : valvola riduttrice di pressione VM : valvola miscelatrice.
C
B
The diverting valve switches the water to the plate heat exchanger of the “Domestic hot water production kit “ when the flow switch detects
the passage of water towards the usage point and when the boiler temperature exceeds 61° C. When there is a request for hot water the
boiler operates at maximum steady state power level. See also paragraph 5.1.8.
SCA
VNR: nonreturn valve
VEC: closed expansion tank for plant
protection
VM: mixing valve
SCA: discharge
SR
AD
DOS
UT
DOS: polyphosphates metering
device
SR: salts for resins
AD: water softener
UT: to the usage point
DA: from water mains
F: filter
A: heating plant delivery
R: heating plant return
S: gate valve
VR: reducing valve
DA
F
heating system inlet tap