GCP401/AZ3
Specifications :
The GCP401/AZ3 multifunctional gas control according to national Iranian standard number 4512 & EN126 with thermoelectric flame supervision device, equipped with pressure regulator, ON-OFF thermostat, safety overheat thermostat and setting temperature knob. Pilot outlet gas flow adjustment and main outlet pressure adjustment with exclusion device are available. This control is particularly suitable for storage water heaters and does not require an external electrical power supply.
MAIN FEATURES :
- Three-position control knob: off, pilot, on.
- Temperature selection knob.
- Thermoelectric flame failure device.
- Pressure adjuster with override device.
- On-off type thermostat.
- Resettable safety thermostat.
- Pilot outlet with gas flow screw.
- Inlet and pilot filters.
- Inlet and outlet pressure test points.
TECHNICAL DATA:
- Gas connections: Rp 1/2 ISO 7
- Water connections: 3/4 NPT
- Installation position: any position
- Gas families: I,II and III
- Maximum gas inlet pressure: 50 mbar
- Outlet pressure range: 3-18 mbar
- Working temperature range: 0-80° C
- Pressure regulator: Class C
THERMOSTAT:
Range Temperature difference (D)
30-70°C < 14°C
35-75°C < 14°C on request
40-80°C < 14°C
On request : Temperature difference < 11°C
SAFETY THERMOSTAT
Set-point Temperature difference (D)
92°C <30°C
OPERATION:
Ignition:
Depress and turn the control knob to the pilot position
Depress the button and ignite the pilot flame while
keeping the knob fully depressed for a few seconds .
Release the knob and check that the pilot flame stays
lit. If it goes out, repeat the ignition operation.
Main burner ignition:
Depress and turn the control knob to the position
corresponding to symbol 
. On release, the knob
returns to the ON position 
. Turn the temperature
selection knob to the point corresponding to the
desired temperature .
Pilot position:
To close the main burner and keep the pilot flame on,
depress and turn the control knob to the pilot position .
Shutdown:
Turn the control knob to the OFF position 
.
CAUTION: after shutting down, wait at least two
minutes before re-igniting so as to allow the flame
failure device to return to the safety position.
Thermocouple connection:
Connect the thermocouple to the magnet unit, checking that the fixing connection is properly dimensioned. Torque: 3 Nm
After making the gas connections, check tightness and that the appliance is operating properly.
Connection to the pilot burner:
Pipes with a 4 mm, 6 mm or 1/4 diameter can be used. Use a nut and olive of appropriate dimensions. Tighten to 7 Nm torque.
Adjusting the outlet pressure:
This adjustment must be made with the thermostat bulb cold and the knob. Take off the temperature adjustment knob. Check that the pressure adjustment override screw (2) is screwed out completely. Screw in the screw (1) to increase the outlet pressure or screw it out to reduce it.
Overriding the pressure adjuster:
Screw the screw (2) fully in.
Adjusting the gas flow rate to the pilot:
Screw in the screw (3) to reduce the flow, or screw it out to increase it. To put the pilot gas flow adjuster out of service, fully screw in the screw (3) and then screw it back two complete turns.
IMPORTANT:
At the end of all setting and adjustment operations, check gas tightness and that the appliance is operating properly
