420010970304 - LP-700 Rev. 000 Rel. 002 Date 4.21.21
94
DANGER
!
Failure to replace the sealing rings will result in exhaust gas leaks,
substantial property damage, severe personal injury, or death.
Figure 121 - Disconnect the Main PCB
E. After Maintenance is Complete
Functional Test
After maintenance is complete, ensure the CH circuit is filled and
purged with a pressure of 12 psi. Ensure the DHW circuit is filled and
purged.
1. Power the boiler on.
2. If necessary, purge air again from the CH and DHW circuits.
3. Check the boiler and system settings and components. Ensure
all adjustments are working properly.
4. Ensure the exhaust pipe is connected properly.
5. Reinstall the boiler front cover.
6. If necessary, set the maintenance interval.
Inform the User
1. Inform the user of any changes / adjustments / replacements
in the system.
2. Ensure the user understands how the system works.
3. Hand the instructions to the user. Ensure the instructions will
be kept close to the unit.
4. Have the user perform these regular tasks:
•
Check the system water pressure regularly.
•
If necessary, restore pressure and vent the system.
•
Set the setpoints and control systems to ensure correct and
economical control of the system.
•
Have the system serviced in accordance with regulations at
regular intervals.
•
NEVER attempt to service the boiler or adjust the combustion
system.
5. BE SURE TO USE NEW SEALING RINGS.
6. Ensure there are no gas leaks.
Replace the Main PCB
1. Fold down the electronics box.
2. Unlock the two clips and open the electronics box cover.
3. Disconnect the electrical connections.
4. Unhook the controller board and remove it.
5. Proceed in reverse order to install the new PCB.
6. Follow the instructions provided with the replacement PCB kit
for setting all necessary parameters.
CAUTION
In unusually dirty or dusty conditions, care must be taken to keep
boiler cabinet door in place at all times. Failure to do so VOIDS
WARRANTY!
WARNING
!
Allowing the boiler to operate with a dirty combustion chamber
will hurt operation. Failure to clean the heat exchanger as needed
by the installation location could result in boiler failure, property
damage, personal injury, or death. Such product failures ARE NOT
covered under warranty.
The combustion chamber insulation in this product contains
ceramic fiber material. Ceramic fibers can be converted to
cristobalite in very high temperature applications. The International
Agency for Research on Cancer (IARC) has concluded, “Crystalline
silica inhaled in the form of quartz or cristobalite from occupational
sources is carcinogenic to humans (Group 1).”
• Avoid breathing dust and contact with skin and eyes.
• Use a NIOSH certified dust respirator (N95). This type of
respirator is based on the OSHA requirements for cristobalite at
the time this document was written. Other types of respirators
may be needed depending on job site conditions. Current
NIOSH recommendations can be found on the NIOSH website:
http://www.cdc.gov/niosh/homepage.html. NIOSH approved
respirators, manufacturers, and phone numbers are also listed
on this website.
• Wear long-sleeved, loose fitting clothing, gloves, and eye
protection.
• Apply enough water to the combustion chamber lining to
prevent dust.
• Wash potentially contaminated clothes separately from other
clothing. Rinse clothes washer thoroughly.
NIOSH stated First Aid.
• Eye: Irrigate immediately.
• Breathing: Fresh air.
The boiler requires minimal periodic maintenance under normal
conditions. However, in unusually dirty or dusty conditions, periodic
vacuuming of the cover to maintain visibility of the display and
indicators is recommended.
Periodic maintenance should be performed once a year by a
qualified service technician to ensure that all the equipment is
operating safely and efficiently. The owner should make necessary
arrangements with a qualified heating contractor for periodic
maintenance of the boiler. Installer must also inform the owner that
the lack of proper care and maintenance of the boiler may result in a
hazardous condition.
Part 15 - Maintenance Report
