8
WARNING!
Because of possible condensation of vapour it is not recommended to set up water
temperature to a value lower than 50°C. For running water it is necessary to mix water in the
fitting.
PUTTING THE WATER TANK OUT OF OPERATION
The procedure is following:
Turn the control button into the position OFF
Stop gas supply to the appliance
For putting the appliance back to operation it is necessary to follow previous chapters
WARNING!
Control elements of the gas fitting can not be manipulated violently. Damage can cause gas
release and even explosion. If turning the control element causes problems, service should
be called immediately.
SAFETY DEVICE
The procedure of burning is protected by flame fuse that closes gas supply automatically
when ignition flame goes off. Opening time of the fuse is about 8 seconds but it can not
overcome 15 seconds. Closing time is about 45 seconds but it can not overcome 60 seconds.
TEST OF THE DEVICE
When putting the device to operation the organization is obliged to check:
safety times of flame fuse
adjustment of the appliance to a certain thermal output
the procedure of burning the main burner from ignition flame (must be continuous)
whether the operation thermostat is working
whether the safety valve is working
whether the device is gas resistant and water resistant
whether the draught breaker is working and waste gas is exhausted properly
documentation of the device
POSSIBLE FAILURES – CONDENSATION OF VAPOUR
Vapour present in waste gas can condensate and then drop on hot surfaces. In this case some
hiss and crackle can be heard. After heating water this sound will stop.
CONDENSATION OF VAPOUR CAN HAPPEN IN FOLLOWING CASES:
New storage tank is filled with cold water for the first time.
Gas burning starts but water is still cold.
If in a short time a big volume of water was released and water coming into the boiler is too
cold. If this occurs too often, it is necessary to set up the regulator of temperature to a higher
value.
