99
NOTICE
Warranty does not cover boiler damage or
malfunction if the following steps are not
performed at the intervals specified.
A. Continuously:
1. Keep the area around the boiler free from
combustible materials, gasoline and other flammable
vapors and liquids.
2. Keep the area around the combustion air inlet
terminal free from contaminates.
3. Keep the boiler room ventilation openings open and
unobstructed.
B. Monthly Inspections:
1. Inspect the vent piping and outside air intake piping
to verify they are open, unobstructed and free from
leakage or deterioration. Check rodent screens in
vent and air intake terminations to verify they are
clean and free of debris. Call the service technician
to make repairs if needed.
2. Inspect the condensate drain system to verify it is
leak tight, open and unobstructed. Call the service
technician if the condensate drain system requires
maintenance.
3. Inspect the flue temperature sensor cap to verify that
it is free from leakage and deterioration. Call the
service technician to make repairs, if needed.
4. Inspect the water and gas lines to verify they are
free from leaks. Call the service technician to make
repairs if required.
NOTICE
Water leaks can cause severe corrosion damage
to the boiler or other system components.
Immediately repair any leaks found.
C. Annual Inspections and Service:
In addition
to the inspections listed above the following should be
performed by a service technician once every year.
1. Test the flow switch by disabling the boiler primary
loop circulator. The boiler must not start when there
is not water flow.
2. Follow the procedure for turning the boiler off per
Figure 32 “Operating Instructions”.
3. Inspect the wiring to verify the conductors are in
good condition and attached securely.
DANGER
Explosion Hazard. Electrical Shock Hazard. Burn Hazard. This boiler uses flammable gas, high
voltage electricity, moving parts, and very hot water under high pressure. Assure that all gas
and electric power supplies are off and that the water temperature is cool before attempting any
disassembly or service.
Do not attempt any service work if gas is present in the air in the vicinity of the boiler. Never modify,
remove or tamper with any control device.
WARNING
This boiler must only be serviced and repaired by skilled and experienced service technicians.
If any controls are replaced, they must be replaced with identical models.
Read, understand and follow all the instructions and warnings contained in all the sections of this
manual.
If any electrical wires are disconnected during service, clearly label the wires and assure that the wires
are reconnected properly.
Never jump out or bypass any safety or operating control or component of this boiler.
Read, understand and follow all the instructions and warnings contained in ALL of the component
instruction manuals.
Assure that all safety and operating controls and components are operating properly before placing
the boiler back in service.
Annually inspect all vent gaskets and replace any exhibiting damage or deterioration.
XI. Service and Maintenance
(continued)
Summary of Contents for PHNTM399
Page 53: ...53 VIII Electrical continued Figure 26 Ladder Diagram...
Page 54: ...54 VIII Electrical continued...
Page 55: ...55 Figure 27 Wiring Connections Diagram VIII Electrical continued...
Page 113: ...113 THIS PAGE LEFT BLANK INTENTIONALLY...
Page 114: ...114 XIII Repair Parts continued PHNTM399 and PHNTM500...
Page 118: ...118...
Page 119: ...119...
