Page 24
21091-0-0606
MAINTENANCE INSTRUCTIONS
WARNING:
• Prior to any maintenance operation, it will be necessary to close the gas supply.
• Only qualified personnel are allowed to operate these appliances without the front cabinet installed.
OPERATION
FREQUENCY
FAULTS TO BE PREVENT-
ED
REMARKS
External cleaning
As required
External dirty
With wet rag or soft cloth. No
qualified persons required
General cleaning of appliances
As required. It is advisable to
perform this operation annu-
ally.
Recirculation of suspended
particles in surrounding air,
deposits on the appliance
To be performed by qualified
personnel
Gas leakage control
Only if the equipment has been
moved or if any gas circuit ele-
ment has been changed.
Gas leakage
Check with soapy water solu-
tion. To be performed by quali-
fied personnel
Cleaning of pilot burner
As required
Clogging of same
To be performed by qualified
personnel
In case of doubt, please check with our Customer Service Department
Use soft dry cloth to wipe cabinet.
Use compressed air to remove dust from around pilot and main burner.
Use a vacuum cleaner or compressed air to clean cap and air inlet ring.
CLEANING BURNER AND PILOT
Cleaning of the burner and pilot may be performed by gently vacuuming loose particles and dust from the burner ports and clean-
ing the air intake. Clean the pilot burner with compressed air, pipe cleaner or toothbrush. Do not insert any object (pin, drill bit, etc.)
through pilot orifice. This will destroy the orifice. Any service which requires disconnecting the gas supply line must be performed by
a qualified service person.
Note:
It is recommended to shut off pilot in off season.
Summary of Contents for HW075DVN-1
Page 23: ...21091 0 0606 Page 23 PARTS VIEW...
Page 27: ...21091 0 0606 Page 27 NOTES...
