ROC Crown Gold Series User Manual Download Page 15

15

Leading by professional  

cleaninG and maintenance

check on time 
once a year

 




4. cleaning and Maintain

Gas  boiler  must  be  cleaned  and  maintained  more  than  one  time  per  year.  If  over  one 
year,  the  trash  in  each  pipe  will  make  the  performance  debase  and  make  some  noise, 
which becomes the reason for malfunction. If it happens, please contact our after-sales 

service department and clean the boiler under the skilled man’s direction. (Cleaning and 
maintenance must be before the heating period)

check on time 
once a year

 




check on time 
twice  a year

Attention:

necessary, - not necessary.

Maintenance

Check the obturator
Clean the heat exchanger beyond the 

flue

Clean the combustion chamber, fan 
and inner pipe
Check the device for electricity and gas

Check the gas flow volume and 

pressure 
Check all the smoke pipes

Clean the burner and exam the fire 

performance
Check the water system
 Analyze combustion state
Check the lubrication of components

Check the tightness of gas device
Clean the quadric heat exchanger 
Check the performance of electric and 
electronic components 
Volume and speed of the fan

attention: 

When cleaning and maintenance, don’t damage the sealed construction 

of product and accessories.

Summary of Contents for Crown Gold Series

Page 1: ...USER S GUIDE Condensing Gas Wall hung Boilers Crown Gold Series...

Page 2: ...nt rules and instructions of manufacturer Manufacturer will not take any responsibility for those person harm and property damage causing by incorrect installation Gas boiler only use for supplying he...

Page 3: ...Items for safety 9 Function and use for main control panel 12 First operation 14 Turn on off the machine correctly 15 Cleaning and maintenance 16 Make sure the following items before repairing 17 Tech...

Page 4: ...ich is above the temperature you have set so that you can save much energy 3 adopt multiple safe protection device Our products have the most safe protection device in the same trade Adopt equilibrium...

Page 5: ...e energize performance If the power breaks when the machine is running this performance will save all the orders which is saved before the power breaks it will carry out all the orders automatically a...

Page 6: ...ere is leakage combustion will be cut automatically Machine reruns after pouring the water according to the way to first operation 6 self diagnoses device This device can avoid system safety losing co...

Page 7: ...had better allocate a manostat if pressure is unstable 3 Use Except heating and D H W gas boiler can t be used in other ways 4 Check the switch for gas before use Check the middle switch connected on...

Page 8: ...and contact local gas supplier 8 Prevent frostbite in winter When heating heater must be unimpeded including water electricity gas There is a prevent frostbite device in the heater so the heater will...

Page 9: ...mperature indication Operation sign works Winter mode Malfunction Display lock Anti freezing Summer mode Overheat protector Pump Water pressure switch Fan Air pressure switch Room thermostat 1 2 3 4 5...

Page 10: ...ting and hot water temperature Down button Reduce the heating and hot water temperature Reset button It will reset the malfunction and restart the gas boiler when malfunction occurs After entering the...

Page 11: ...function reason Air pressure or air speed malfunction flue thermocouple disconnects NTC open circuit and short circuit NTC open circuit and short circuit When the pipe water temperature is higher than...

Page 12: ...rom 30 55 C The speed of water output depends on the length of the pipe After all cold water flows out hot water will flow out 1 Pour Water For the Heating system 1 Open the valve for the pouring wate...

Page 13: ...ter will overflow from the condensing water outlet 1L h before using the product a water pipe must be connected to the condensing water to lead it to the floor drain first operaton notice Because of i...

Page 14: ...2kgf cm2 2 not Be Used For a short Period Gas boiler needs to be off if it won t be used for a short period Press and then the machine turns off When the gas boiler is under OFF state please keep the...

Page 15: ...ime once a year check on time twice a year Attention necessary not necessary Maintenance Check the obturator Clean the heat exchanger beyond the flue Clean the combustion chamber fan and inner pipe Ch...

Page 16: ...ignite some unusual noise when start a smoke smell Bad heating effect no hot water or hot water isn t hot Way to Maintain Close the mid valve connected by gas pipe Don t turn on or off the electrical...

Page 17: ...inimum pressure of D H W Expansion vessel capacity Expansion vessel preload capacity Maximum heating system pressure Nominal nature gas pressure PERFORMANCE Maximum heating water temperature Minimum h...

Page 18: ...D H W Outlet G1 2 C C W Inlet G1 2 D B F W Inlet G3 4 E W O H Outlet G3 4 D H W Domestic Hot Water C W Cold Water B F W Back Flow Water W O H Water Of Heating A Gas Inlet G3 4 B D H W Outlet G1 2 C C...

Page 19: ...Packing list in a Whole Unit appendix 1 Host machine 2 Installation bag Two pothooks Two expansion bolts used for fix the pothook 3 Accessory bag One user s guide...

Page 20: ......

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