Reznor MAPS II Unit Installation Manual - Manual (Page 38)

Form I-MAPS II, Page 38
FIGURE 30A - System with Optional Energy Recovery Module showing Component
Locations of Energy Recovery Air Control Option AR2A
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( 2) Horizontal Air Intake &
Exhaust Air Openings
( 3) Bottom Return Air Open-
ing
( 8) Energy Recovery Module
(Option ER) required
( 10) Gravity Dampers
(11) Optional - Motorized
Two-Position Outside Air
Intake Hood Dampers
(Option ARD3)
FIGURE 30B - System with Optional Energy Recovery
Module showing Component Locations of Energy Recovery
Air Control Option AR2B
( 2) Horizontal Air Intake and
Exhaust Air Openings
( 3) Bottom Return Air Opening
( 4) Outside Air Intake Dampers
( 5) Return Air Dampers
( 6) Modulating Damper Motor
( 8) Energy Recovery Module
(Option ER) required
( 9) Energy Recovery Module
Economizer Control (allows
wheel to pivot out of air-
streams when outside air
does not need tempering)
( 10) Gravity Dampers
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9. Optional Equipment including Heat Sections (cont'd)
9.1 Inlet Air Control and Energy Recovery Options (cont'd)
9.1.3 Energy Recovery Module Options (cont'd)
9.2 Power Exhaust
(Building)
If ordered with Option PE, the system is factory equipped with a power exhaust
for building air. The power exhaust blower, motor, and damper are assembled
and attached to the cabinet below the outside air hood or inlet duct. (See loca-
tion and dimensions in Paragraph 4.1 and FIGURE 31.) The power exhaust
hood(s) is factory assembled and shipped in a separate carton to be installed
at the site. To attach, slide the hood(s) over the flange and fasten with the
sheetmetal screws provided. NOTE: Attach the power exhaust hood before
installing the outside air hood or horizontal discharge ductwork.
Cabinet A and B sizes (see Cross Reference, page 58 ) have a 9x10 exhaust
blower, gravity damper, and one shipped-separate hood. Cabinet C sizes have
dual 9x10 blowers, gravity dampers, and two shipped-separate hoods. Check
the rating plate for motor size (1/2 - 5 HP).
Standard control would turn the exhaust blower on when the unit blower runs.
If optional return air dampers are ordered, the power exhaust is wired to coor-
dinate with the appropriate damper position.