Product Overview

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MPO-IQ
Installation & Service Manual
Boiler Model No.
Dimensions See Figure 1
Water Content
- Gallons
Heat Transfer
Surface Area -
Sq. Ft.
Actual
Shipping
Weight (LB.)
“A” “B” “C”
MPO-IQ84B/115B 16-5/8” 24” 5” 7.70 13.29 430
MPO-IQ147B 22-5/8” 24” 6” 11.08 20.29 545
MPO-IQ189B 28-5/8” 30” 6” 14.46 27.29 658
MPO-IQ231B 34-5/8” 36” 7” 17.84 34.29 771
NOTE: 1. Maximum Working Pressure: Water: 30 PSI Shipped From Factory (Standard),
40 PSI Optional, 50 PSI Optional
Boiler Model
No.
Burner
Capacity
DOE
Heating
Capacity
MBH (2)
NET AHRI
Ratings
AFUE
%
Minimum Chimney
Recommendation
Direct Vent System
GPH
MBH
(1)
Water
MBH (3)
Round
In. Dia.
Rectangle
In. x In.
Height
Ft.
Model
Vent
Connector
Dia. Inch
MPO-IQ84B 0.60 84 74 64 87.0 6 8 x 8 15 N/A N/A
MPO-IQ115B 0.80 115 101 87 87.0 6 8 x 8 15 N/A N/A
MPO-IQ147B 1.00 140 123 107 87.0 6 8 x 8 15 FDVS-56 5
MPO-IQI89B 1.30 182 160 139 87.0 7 8 x 8 15 FDVS-56 5
MPO-IQ231B 1.60 221 197 171 87.0 7 8 x 8 15 FDVS-67 6
(1) MBH refers to thousands of BTU per hour.
(2) Based on Standard Test prescribed by the United States Department of Energy at combustion conditions of
13.0% CO
2
.
(3) Net AHRI water ratings based on a piping and pickup allowance of 1.15. Consult with manufacturer before
selecting a boiler having unusual piping and pickup requirements, such as intermittent system operation,
extensive piping systems, etc.
Table 1A: Dimensional Data (See Figure 1)
Table 1B: Rating Data
MAWP is 50psi. Shipped with
30 psi safety relief valve.