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part no.
51 641 50 c
Leak check before start-up
Before start-up, check the product connections for leaks.
1. Close all shut-off fittings on the gas appliance.
2. Slowly open the withdrawal valve or the gas cylinder valve.
3. Spray all connections with a foam producing substance according to EN 14291
(e.g. leak spray, Part no. 02 601 00).
4. Bubbles will form in the foam producing substance if there are any leaks.
If more bubbles form, re-tighten the connections (see ASSEMBLY). If
you cannot stop the leaks, you must not use the product.
Observe the applicable national installation regulations for LPG systems.
START-UP
After the product has been ASSEMBLED and LEAK TESTING has been carried out
successfully, it is immediately ready for operation.
1. Start the system by slowly opening the gas feed.
2. The shut-off fitting of the consumer device must be closed.
3. Observe the assembly and operating instructions of the consumer device.
4. Open the shut-off fittings.
OPERATION
The product requires no operation while it is running.
TROUBLESHOOTING
Fault cause
Action
Abnormal flame pattern of
non-adjustable pressure
regulator
Compare the nominal outlet pressure with the nominal
connection pressure:
if they do not correspond, replace the pressure regulator
or the gas appliance
Measure the outlet pressure; outlet pressure is not within
the specified limits:
check the system configuration
pressure regulator is defective, replace
check the gas filter
No gas flow.
Open the gas cylinder valve or the shut-off fittings.
Check the gas filter.
Gas smell
Leaking LPG is extremely
flammable.
Can cause explosions.
Close the gas supply.
Do not use any electric switches.
Do not use a phone in the building.
Ventilate rooms well.
Shut down the LPG system.
Contact a specialised company.
MAINTENANCE
Upon proper ASSEMBLY and OPERATION, the product is maintenance-free.
Low pressure regulator type NDR 0516
