HANDLING MANUAL
SERVICE MANUAL
RAYPAK HI DELTA BOILERS/WATER HEATERS
WITH FAN ASSISTED PREMIX BURNERS
22
2.7.
PERIODIC MAINTENANCES TO BE CARRIED OUT BY THE USER
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Check the air filter periodically! Clean it when needed!
Remove obstacles, snow and ice from the way of the
combustion air and flue gases!
-
Keep the environment of the appliance clean and tidy!
-
Keep away from flammable substances!
-
Check the airtight proper level of heating substance in
the hydraulic system! Check and identify the
concentration and quality of the antifreeze in
appliances installed outdoor in freezing environment!
Take care of refilling when needed!
-
Before starting up the gas appliance check if its pump
is turning into the right direction, there is enough
flow, there is not any dripping at pumps, safety relief
valves and other fittings in the system!
-
The heating substance shall be drained when the
appliance is turned off in a freezing environment and
the concentration of the antifreeze is not enough.
Leave the drain valve open!
-
The safety relief valve shall be operated at least once
in a year manually!
-
Visually inspect the area of the flue outlet for soot!
Call the service to clean if needed! Small scale
sediment is normal!
-
Visually inspect the venting system for normal
operation, deterioration or leakage!
-
Suspect for periodic flue gas condensation if there is
an erratic occurrence of ignition lock-outs! Eliminate
the error by adjusting thermostats and controllers! Call
the service to adjust the hydraulics when needed!
!
Call an authorized service to execute the annual
maintenance!
Call
an authorized
service
regularly to check and clean the heat exchanger
tubes of domestic hot water/technological water
heaters. The required frequency of the
inspection depends on the quality of the water!
The tubes can be cleaned mechanically or with
descaler chemicals. Inspection and cleaning is
possible by removing the header only opposite
to the water connections. It is better anyway to
remove both headers to see through the tubes
and to avoid that removed scale could get into
the hydraulic system. The use of releasable
hydraulic connectors is reasonable.
!
Hot liquid can egress the water pressure relief
valve. Discharge piping must be piped near the
floor and close to a drain to avoid the possibility
of any personal injury or property damage. The
piping must be routed so that no discharged
liquid could freeze in it.