Step 7 - Make Outdoor-Air Inlet Adjustments; Manual Outdoor-Air Damper; Optional Economi$Er - Carrier 50HJQ016 Installation, Start-Up And Service Instructions Manual

NOTE: The disconnect takes the place of TB-1 as shown on the unit
wiring diagram label and the component arrangement label.
Fig. 14 — Optional Non-Fused Disconnect Wiring
Step 7 — Make Outdoor-Air Inlet Adjustments
MANUAL OUTDOOR-AIR DAMPER — All units (except
those equipped with a factory-installed EconoMi$er) have a
manual outdoor-air damper to provide ventilation air. Damper
can be preset to admit up to 25% outdoor air into return-air
compartment. To adjust, loosen securing screws and move
damper to desired setting. Then retighten screws to secure
damper (Fig. 15).

OPTIONAL ECONOMI$ER

EconoMi$er Motor Control Module (Fig. 16-18) — Set the
ECON SP dial to the ''D'' setting (Fig. 17). The control mod-
ule is located on the EconoMi$er motor. See Fig. 16 and 18.
Damper Vent Position Setting
1. Set fan switch at ON position (continuous fan operation)
and close night switch if used.
2. Set system selector switch to OFF position.
3. Turn Min Pos (%) dial slowly until dampers assume de-
sired vent position. Do not manually operate EconoMi$er
motor since damage to motor will result.
Fig. 15 — 25% Outdoor-Air Section Details
6T3 4T2 2T1 LOAD
5L3 3L2 1L1 LINE
CONTROL
MODULE
ACTUATOR
ECONOMI$ER
Fig. 18 — EconoMi$er Control Module Location
10
Fig. 16 — EconoMi$er Damper Assembly
— End View
Fig. 17 — EconoMi$er Control Module
Adjustment Potentiometers
CONTROL MODULE ACTUATOR