Gas Control Assembly/Valve Description - RealFlame PYROTECH Installation & Operating Manual

GAS CONTROL ASSEMBLY
PART
SIT 820 NOVA Mv
SIT 820 NOVA Mv
SIT THERMOCOUPLE
SIT PILOT ASSEMBLY
SIT THERMAL GENERATOR
PIEZO WITH LEAD
PIEZO IGNITOR PUSH BUTTON
PIEZO BRACKET
VALVE DESCRIPTION AND TECHNICAL DATA
TECHNICAL DATA
Gas connections:
Installation position:
Gas families:
Maximum gas inlet pressure:
Outlet pressure setting range:
Working temperature range:
Pressure regulator:
Automatic Solenoid Valve:
26
Rp 1/2 ISO 7 (1/0 3/8˝ on request)
any position
I, II and III
60 mbar
3 – 30 mbar (20 – 50 on request)*
0 – 70° C
Class B
Class D (Class C on request)
* Versions without manual gas flow adjustment device
PART No.
0820332-NAT GAS
0820331-LPG
200261
190610
240002
28510
73953
978099
1. Control Knob
2. Main gas flow manual adjustment device
3. Adjustment screw for gas flow to the pilot
4. Thermocouple connector
5. Alternative thermocouple connector
6. Provision for accessories support bracket
7. Inlet pressure test point
8. Outlet pressure test point
9. Actuating solenoid valve
10. Pilot outlet
11. Main gas outlet
12. Holes (M5) for fixing flanges
13. Supplementary valve body fixing points
14. Connection for pressure regulator/combustion
chamber compensation
15. Thermocouple and thermostat connection
THERMOPILE POWER SUPPLY
Use two-wire thermopile
Voltage with open circuit:
Voltage with closed circuit:
Resistance of the coil:
AGA Approval
4032
4032
4032
4032
4032
4032
4032
4032
> 350 mV
> 100 mV
1.6 ohm