62
AMPW 400-1000L I&O Manual
. Service and Maintenance
WARNING
WARNING
Read and understand the entire manual before
attempting installation, start-up, operation, or
service. Installation and service must be performed
only by an experienced and skilled installer or
service agency.
This appliance requires regular maintenance and
service to operate safely. Follow the instructions
contained in this manual. Improper installation,
adjustment, alteration, service, or maintenance
can cause property damage, personal injury or
loss of life.
A clean and unobstructed venting system is neces
-
sary to allow noxious fumes that could cause injury
or loss of life to vent safely, and will contribute
toward maintaining the appliance's efficiency.
Installation is not complete unless a safety relief
valve is installed in the tapping located on the water
manifold or supply piping. Refer to piping section
of the manual.
If damage due to frozen pipes is a possibility,
the piping system should be not left unattended
in cold weather; or appropriate safeguards and
alarms should be installed on the heating system
to prevent damage if the appliance is inoperative.
Do not unscrew any pipe fittings nor attempt to
disconnect any components on this appliance
without positively assuring the water is cool and
has no pressure. Always wear protective clothing
and equipment when installing, starting up, or
servicing this appliance to prevent scald injuries.
!
CAUTION
CAUTION
Caution:
Label all wires prior to disconnection
when servicing controls. Wiring errors can cause
improper and dangerous operation.
Verify proper operation after servicing.
!
A. General Maintenance
1. Keep the area around the appliance free from
combustible materials. (Gasoline and other
flammable vapors and liquids)
2. Keep the area around the combustion air inlet
terminal free from contaminants.
3. Keep the boiler room ventilation orifices open and
unobstructed.
4. Remove front jacket panel and check minimum and
blocked vent switches for cracks and check pressure
sensing line connections.
5. Vacuum any sediment and dust from the interior
and components.
B. Monthly Inspection
1. Inspect the vent piping and outside air intake piping
to verify they are open, unobstructed, and free of
leakage or deterioration. Check screens in vent and
air intake terminations to verify they are clean and
free of debris.
2. Inspect the condensate drain system to verify it is
leak proof, open and unobstructed. Call the service
technician if the condensate drain system requires
maintenance.
3. Inspect water and gas lines to verify they are free
of leaks.
C. Annual Inspections and Service
In addition to the inspection listed above the following
should be performed by a service technician once
every year.
1. Water flow switch
a. Test the flow switch by disabling the appliance's
primary loop circulator. The appliance must not
start when there is no flow of water.
b. Remove flow switch and visually inspect paddle
length. The markings on the flow switch should
correspond to the model size to witch it is
installed.
NOTICE
NOTICE
To reduce lime scale buildup and prolong the life of
the appliance, closely monitor pH, chloride, total
dissolved solids, and water hardness levels.
