PLATINUM
WATER HEATER
24 PV500-37C 06/12
13. PERIODIC MAINTENANCE
Listed below are items that must be checked to insure safe reliable operation. Maintenance must be performed
by a qualified service or maintenance provider. Verify proper operation after servicing.
1. Examine the appliance and venting system at least once a year. Check more often in first year to
determine inspection interval. Check all joints and pipe connections for tightness, corrosion or
deterioration. Clean screens in the venting air intake system as required. Have the entire system,
including, but not limited to, the burner, heat exchanger and venting system, periodically inspected by a
qualified service agency.
2. Exposure to Dusty or Dirty Combustion Air: An appliance installed in a dust or dirt contaminated
atmosphere must have periodic burner inspection where those contaminants can be drawn into the
combustion air. The burner should be checked on a 3 to 6 month schedule or more often, based on
severity of contamination, until an appropriate interval can be determined by inspection experience. If an
air filter box is used to remove dust or dirt, be certain it does not restrict free airflow into the appliance and
that the filters are periodically cleaned. Inadequate combustion air or non-combustible particulate matter
such as dust, dirt, dryer lint, concrete dust, dry wall dust or the like can block burner ports and cause
unsafe operation and a non-warrantable failure. To inspect and clean the burner, a qualified service
agent/installer should use the procedures described in item 5 & 6 below.
3. Heat Exchanger Inspection and Cleaning: Properly installed and adjusted units seldom need heat
exchanger cleaning. If a blocking amount of dust or lint has formed or is forming, the heat exchanger must
be cleaned and air born debris problem corrected. A blocked heat exchanger can cause unsafe operation
and will reduce efficiency. To inspect and clean the heat exchanger, a qualified serviceman or installer
should follow the procedures described in “Burner and/or Fireside Heat Exchanger Inspection and
Cleaning,” other instructions in this manual and in other provided instructions and labels.
4. All gaskets on disassembled components must be replaced on reassembly with exact, Factory Authorized,
replacement parts only. Gasket kits are available from your PVI Industries Representative or by contacting
PVI Industries, LLC.
CAUTION: Label all wires prior to disconnection when servicing controls, so they can be reconnected in their
original and correct locations. Misconnected wiring can cause improper and dangerous operation.
WARNING: High Voltage Shock Potential - Turn off all electrical service to the appliance when accessing
the gas valve, condensate trap, blower, hot surface ignitor and other components located inside the
lower front and rear panels or in the front electrical control panel. After access, close and fasten the
lower front and rear panel covers before restoring electrical service to the appliance. Wires and
terminals, such as the gas valve terminals carry High Voltage (120V). If the electrical service is not
turned off, or if the covers are not replaced, and these terminals are touched, a dangerous shock
causing personal injury or loss of life could occur.
5. Burner and/or Fireside Heat Exchanger Inspection and Cleaning Procedure:
a. Write notes and/or take pictures during this process to aid in correct reassembly.
b. Turn off main power to unit and turn off gas supply.
c. Remove the hot surface igniter and set safely aside (Do not touch the black heating surface of the
igniter, as oils from your hand can cause early failure. Take care during removal and reassembly, as
the black heating element is very easy to break when not properly installed.)
d. Tag to identify then disconnect wires to the gas valve and blower, etc., as required to remove the
blower and gas train assembly.
e. Remove the blower-to-burner gasket and then carefully remove the burner.
f. If the inner screen of burner is blocked with dust or dirt, remove the screen from the body of the burner
and carefully clean with soap and water. While the inner screen is removed, inspect and if needed,
clean the main burner body. Take care not to damage the inner screen or burner body by avoiding the
use of stiff brushes or abrasive materials. Reinsert inner screen into the burner body when clean.
g. To inspect inside the flue collector, the combustion chamber or the fire tubes and baffles, disconnect
the vent, condensate drain and pressure switch tubing then unbolt and remove the flue
collector/bulkhead assembly, being careful not to damage the refractory attached to the top of this
assembly. It is recommended practice to replace this refractory with new refractory when it is exposed
during servicing. The refractory must be replaced before operating the appliance, if it is damaged.
To Next Page
Loading...
