a
b
c
Multifunctional control with modulating thermostat and additional on-off function. 630 EUROSIT does not require electrical
supply and is available in a vast range of models. It is particularly suitable for use in space heaters, convector heaters,
storage water heaters, boilers, catering appliances and all those appliances that require accurate temperature control.
MAIN CHARACTERISTICS
Control knob with positions for off, pilot and temperature selection (MS)
Thermoelectric flame supervision device with re-start interlock (GM)
Maximum gas flow adjustment (RQ) or, alternatively,
Pressure regulator (PR)
Minimum (by pass) flow adjustment
Modulating thermostat with additional on-off function (TH)
Pilot outlet with pre-setting device of the gas flow (RQ)
Inlet and pilot filter (FL)
Inlet and Outlet pressure test points
Lateral or bottom main gas inlet and outlet
Main gas connections with threaded pipe or nut and olive.
WORKING DIAGRAM
Versions without pressure regulator
Versions with pressure regulator
FL
MS
TH
RQ
GM
FL
RQ
MAIN
PILOT
GAS
INLET
BURNER
BURNER
MAIN
PILOT
GAS
INLET
BURNER
BURNER
FL
MS
TH
PR
GM
FL
RQ
Main gas connections
Rp 1/2 ISO 7
Assembly position
any position
Gas families
I, II and III
Max. gas inlet pressure
50 mbar
Outlet pressure setting range
3-18 mbar
Working temperature range
0-80 °C
Pressure regulator
(optional)
Class C
Torsion and bending resistance
Group 2
Flame supervision device
(using SIT series 200 or 290 thermocouples)
ignition time
< 10 s
shut-off time
< 60 s
number of cycles expected
10.000
Manual shut-off device
number of cycles expected
10.000
TECHNICAL DATA
The technical data specified below refer to the European standard, EN 126 "Multi-functional controls for gas-burning
appliances".
THERMOSTAT REGULATION SPECIFICATIONS
The regulation specifications of the modulating thermostat with on-off function are shown in the following drawing and table:
Thermostatic range
a
b
c
8-33 °C
3
3
2
13-31 °C
2
2
2
13-38 °C
3
3
2
13-48 °C
4
4
3
21-46 °C
3
3
2
30-100 °C
9
9
5
40-72 °C
5
5
3
40-80 °C
5
5
3
100-340 °C
30
30
10
Other ranges are available on request
Gas flow
Temperature
USE AND INST
ALLA
TION INSTRUCTIONS
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