10
6. Louvers and Grilles of Ventilation Ducts
a. All outside openings should be screened and louvered.
Screens used should not be smaller than 1/4 inch mesh.
Louvers will prevent the entrance of rain and snow.
b. Free area requirements need to consider the blocking
effect of louvers, grilles, or screens protecting the
openings. If the free area of the louver or grille is not
known, assume wood louvers have 20-25 percent free
area and metal louvers and grilles have 60-75 percent
free area.
c. Louvers and grilles must be fixed in the open position, or
interlocked with the equipment to open automatically
during equipment operation.
D. DIRECT VENT CONFIGURATIONS requires:
1. Beckett NX Burner
2. Direct Vent Conversion Kit
3. Double Wall Flex Oil Vent Pipe (FOVP)
Boiler
Model No.
Beckett NX
Oil Burner
Part No.
Direct Vent
Conversion Kit
Part No.
FOVP Carton Part
No.
MPO-IQ147
103896-03
102130-02
100211-02 - 5 ft.
100212-02 - 10 ft.
MPO-IQ189
103897-04
100213-02 - 15 ft.
100214-02 - 20 ft.
MPO-IQ231
103898-05
102130-03
100211-03 - 5 ft.
100212-03 - 10 ft.
100213-03 - 15 ft.
100214-03 - 20 ft.
TABLE 2: DIRECT VENT CONFIGURATION
COMPONENTS
I. PRE-INSTALLATION (continued)
Summary of Contents for MPO - IQ
Page 6: ...6 Figure 1 MPO IQ84 Thru MPO IQ231 Water Boiler ...
Page 22: ...22 Figure 11 Boiler Removal from Skid III UNIT PAK BOILER ASSEMBLY TRIM CONTROLS continued ...
Page 42: ...42 Figure 28A Schematic Wiring Diagram VII ELECTRICAL continued ...
Page 43: ...43 Figure 28B Schematic Wiring Diagram Burner Options VII ELECTRICAL continued ...
Page 44: ...44 Figure 28C Ladder Diagram VII ELECTRICAL continued ...
Page 70: ...70 Bare Boiler Assembly XIV Repair Parts continued ...
Page 72: ...72 Jacket Assembly XIV Repair Parts continued ...
Page 74: ...74 MPO IQ84 Thru MPO IQ231 Water Boilers Trim and Controls XIV Repair Parts continued ...
Page 78: ...78 Beckett AFG Burner XIV Repair Parts continued ...
Page 80: ...80 Beckett NX Burner XIV Repair Parts continued ...
Page 92: ...92 U S Boiler Company Inc P O Box 3020 Lancaster PA 17604 1 888 432 8887 www usboiler net ...