Carrier 39L User Manual

Page 56

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LEGEND

AO

— Analog Output

EVAC — Evacuation
EXD

— Exhaust Air Damper Actuator

FSD

— Fire Shut Down

HOA

— HAND/OFF/AUTO Switch

HPS

— High-Pressure Switch

LTT

— Low Temperature Thermostat

OAD

— Outside Air Damper Actuator

PRES — Pressurization
RAD

— Return Air Damper Actuator

RFR

— Return Fan Relay

SF

— Supply Fan Contactor

SFR

— Supply Fan Relay

TB

— Terminal Block

TRAN — Transformer

Remove Jumper

Factory Wiring
Field Wiring

NOTE: The return fan power circuit may be different than the supply
fan starter power.

Fig. 49 — Smoke Control Option Wiring Schematic (39L)

56

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