PATH freewatt HDJ, Installation, Operation & Maintenance Manual, Page: 41 / 68

41
Review maintenance and cleaning procedures as outlined in
Installation, Operation and Maintenance Manuals of boiler
and Honda MCHP before proceeding with procedures below.
Regular service and maintenance by qualifi ed service
agency must be performed to assure safe, trouble-free
operation and maximum effi ciency. Service or inspect
system at least once every 12 months
.
14.1 Beginning of Each Heating Season
Schedule annual service by freewatt PLUS dealer or
certifi ed service agency, to include:
Examine boiler as described in annual inspection, •
service procedures outlined in boiler Installation,
Operation and Maintenance Manual. Inspections
include, but are not limited to:
Heat Exchanger’s Flue Passageways •
Burner •
Combustion Fan •
Circulator •
Electrical Connections •
Condensate Drain •
Intake Air and Exhaust Piping •
Boiler Operation (Safety, Temperature Rise & Burner •
Ignition)
Examine control module/HI Module per annual •
inspection/service procedures outlined below:
Control Module: Using laptop computer or PDA •
check control module’s functions. Detailed
procedures found in MINT Tool Supplement.
Communication/Electrical Connections: Inspect
•
connections to and within Control Module and HI
Module. Verify they are secure and connected
properly.
Bypass Switch: Place CHP Mode Switch in OFF
•
position and operate boiler to verify CHP mode
switch is working properly. Place CHP mode switch
in ON position after verifi cation is complete.
Coolant Level: Check coolant level in coolant tank •
and fi ll with coolant, if necessary.
Mixing Valve: Check coolant temperature being
•
delivered by valve while system is operating. Check
for leaks and fi x, if necessary.
Pump: Inspect pump and connections. Check for
•
leaks and fi x, if necessary.
Coolant Tubing and Connections: Inspect coolant
•
tubing and connections for leaks and fi x, if
necessary.
Brazed Plate Heat Exchanger: Inspect heat
•
exchanger for leaks and fi x, if necessary.
Honda MCHP unit requires periodic inspection by certifi ed
service professional to maintain acceptable performance
and ensure safe operation. Inspection/service procedures
are outlined in unit’s Installation, Operation and
Maintenance Manual. Services are required every 6,000
hours, operating time of unit will directly impact service
interval. Inspections include, but are not limited to:
Starting Ease •
Oil Leakage •
Engine Coolant •
Breather Tube •
Condensate and Condensate Drain •
Air Cleaner Element •
Intake Air and Exhaust Piping •
Ventilation Air Inlet and Outlet •
Coolant Tubing and Connections •
Electrical System and Connections •
Communication System and Connection •
Replace: •
Engine Oil and Drain Washer.
a.
Engine Oil Filter Cartridge.
b.
Spark Plugs.
c.
Adjust Clearance Between Tappets.
d.
MCHP Owner’s Manual outlines specifi c maintenance
intervals (6,000, 12,000, 18,000 & 24,000 hours) and
requirements for each interval. Maintenance should be
performed by service professional to maintain performance
and ensure safe operation of your Honda MCHP.
14 - MAINTENANCE AND CLEANING
WARNING
Disconnect electrical power supply to freewatt PLUS
System before attempting any maintenance. Failure
to do so can cause electrical shock resulting in
personal injury or loss of life.
!
WARNING
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation. Always verify proper operation
after servicing.
!