Payne PA1R Series Installation, Start-Up And Service Instructions Manual page 14

U-SHAPED ECONOMIZER
HOLE CONTROL ECONOMIZER
BOARD PLUG
(NOT
SHOWN)
WIRING
HARNESS
Fig. 20 — Typical Durablade Economizer and
Wiring Harness
EXAMPLE:
Given — Negative Pressure . . . . . . . . . . . . . . . . . . 0.2 in. wg
Outdoor Air . . . . . . . . . . . . . . . . . . . . . . . . 900 cfm
Determine — Setting = 5 in.
Fig. 21 — Durablade Economizer Minimum
Position Setting
ECONOMIZER TOP
MOTOR SCREW
BAROMETRIC
RELIEF DAMPER
POSITION SETTING
BRACKET
Fig. 22 — Outdoor-Air Thermostat/Enthalpy
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Control Installation