Use And Installation Instructions; Main Features - SIT 845 SIGMA Installationsanleitung

USE AND INSTALLATION
INSTRUCTIONS
Multi-functional gas control with double safety solenoid and a modulating device for automatic outlet pressure
adjustment. The control is designed for use in appliances with automatic ignition and flame detection systems, with
direct burner ignition or intermittent pilot. All the adjustments can be made from the top face and it is suitable for all
three gas families.
DESCRIPTION
1 On-off solenoid valve EV1
2
On-off solenoid valve EV2
3
Inlet pressure test point
4
Outlet pressure test point
5
Connection for pressure regulator/
combustion chamber compensation
6
Pressure regulator for minimum and
maximum outlet pressure
7
Gas outlet pressure electric modulator
8
Pilot outlet
9
Main gas outlet
10
Side Outlet

MAIN FEATURES

ON/OFF solenoid valves: EV1 Class B (on request class A)
EV2 Class J (on request class C)
Servo pressure regulator (RP) class B
Gas outlet pressure modulating device with mechanical adjuster for minimum and
maximum outlet pressure (MD)
Inlet filter
Outlet filter (optional)
Pilot outlet (optional) with filter
Side outlet option
Connection for pressure regulator/combustion chamber compensation
Inlet and outlet pressure test points with "captured" screws
Two mounting holes
WORKING DIAGRAM
FL EV1
4
2
RP MD
FL
GB
1
3
6
7
5
4
10
9 8
EV2
MAIN BURNER
PILOT BURNER