User`s manual

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15
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ECONOMIZER
CONTROL
BOARD
BAROMETRIC
RELIEF
DAMPER
ECONOMIZER
PLUG
ECONOMIZER
MOTOR
SHIPPING
SCREW
BLOCK-OFF PLATE
ECONOMIZER
CONTROL BOARD
WIRING
HARNESS
BAROMETRIC
RELIEF
DAMPER
ECONOMIZER
MOUNTING
SCREWS
ECONOMIZER
MOTOR
SHIPPING
SCREW
4
3
2
1
0
5
6
7
8
9
Fig. 22 — Vertical Discharge Block-Off Plate
(Sizes 120,150 Only
Fig. 23 — Horizontal Durablade Economizer
Installation (90 Degree Rotation)
Fig. 24 — Horizontal Discharge Block-Off Plate
Fig. 25 — Durablade Economizer Installed in Unit
EXAMPLE:
Given — Negative Pressure . . . . . . . . . . . . . . . . . . . . . 0.1 in. wg
Outdoor Air . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100 cfm
Determine — Setting =6
Fig. 26 — Durablade Economizer Minimum
Position Setting
Fig. 27 — Durablade Economizer Minimum Position
Damper Setting