Product Overview

27
103859-12 - 8/19
MPO-IQ
Installation & Service Manual
3. Baffles – The efficiency of the boiler is based on the
insertion of flue baffles supplied with your product.
Under no circumstances are other baffles to be
used on this product. Refer to Section II, Item F,
Paragraph 5 for baffle installation. If there is any
doubt on the application of this boiler on the intended
chimney, consult with your local code officials. At a
minimum, remove the baffles to increase the stack
temperature. See Tables 15A thru 15C and 16 for
temperature differential (∆T) with baffles IN and OUT.
In addition, the lower the CO
2
level the higher the
stack temperature.
WARNING
Remove the baffles if there are any signs of
condensation in the chimney or chimney
connector. Consult with your local chimney
professional for recommendations.
E. MINIMUM CLEARANCES
See Figure 2A for details regarding clearances to
combustibles for the boiler.
F. OPTIONAL AIR INTAKE PIPING INSTALLATION
- All air for combustion can be supplied directly to
the burner from outdoors providing that the criteria
for chimney, vent connector and minimum stack
temperature outlined in this section can be maintained.
(ONLY AVAILABLE WITH BECKETT BURNER). Refer
to Section I, Paragraph C, Steps 5 and 6 for optional
air intake piping installation information.
4 Natural Draft Venting (continued)
CAUTION
Any doubt on the condition of a chimney or it’s
ability to prevent the generation and accumulation
of flue gas condensate, must be relined
according to NFPA 31 (United States) or CSA
B139 (Canada).
CAUTION
Any doubt on the condition of a chimney or it’s
ability to prevent the generation and accumulation
of flue gas condensate, must be relined according
to NFPA 31 (United States) or CSA B139
(Canada).
!
!
!
WARNING
Using outdoor air in the middle of winter may
result in lower stack temperatures and chimney
degradation. Any signs of condensate seepage
or discoloration at the base of chimney must be
remedied immediately per the details outlined in
this section.
• Do not reduce size of air intake pipe.
• Read, understand and follow combustion air
instruction restrictions contained in the Pre-
Installation Section of this manual.
!