Use And Maintenance; Gas Valve - Sime Dewy 30 Guia Del Usuario

COVER
COPERTURA
CONNECTOR J2
CONNETTORE J2
4

USE AND MAINTENANCE

4. 1 D.H.W. PRODUCTION
The preparation of hot water is guaranteed
by the glass storage tank unit with magne-
sium anode for the protection of the boiler
unit and inspection flange for its control and
cleaning.
The magnesium anode must be checked
annually and substituted when it is worn.
It is advisable to place a sluice gate at the
entrance of the D.H.W. tank unit which,
apart from the total closure, allows the reg-
ulation of the supply capacity.
If the boiler does not produce hot water,
make sure that the air has been released
by pressing on the manual vents after hav-
ing switched off the main switch.
4.2

GAS VALVE

The boiler, is equipped standard with the
HONEYWELL VK 8115M gas valve (fig. 20).
CR1
CR
TA ( 5 )
( 6 )
TA
D.H.W.
SONDA
SENSOR
SANITARIO
SB ( 11 )
SB ( 12 )
KEY
1
2
CIRCUIT WITH ZONE VALVE
CIRCUITO CON VALVOLE DI ZONA
L
TA
VZ
N
NOTA: I relé vengono impiegati solo nel caso
NOTE: Relays are used only if the area valves have
le valvole di zona siano prive di micro.
no microswitches.
CIRCUIT WITH ZONE PUMP
CIRCUITO CON POMPE DI ZONA
L
TA
P
N
KEY
TA-TA1 Zone room stat
VZ-VZ1 Zone gas valve
R-R1 Zone relay
CR-CR1 Zone microvalve or relay contact
P-P1 Zone pump
1 5
3
4
3
Regulation intake 4
EV1-EV2 coils 5
TA1
R VZ1 R1
TA
R P1 R1
2
Pressure inlet upstream
Pressure inlet downstream
OFF-SET
Fig. 19
Fig. 20
93