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Carrier SINGLE PACKAGE ROOFTOP 48HC User Manual

Page 50

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50

Economizer

2 Position Damper

Unit Without Economizer or
2 Position Damper

C10645

Fig. 76 -- EconoMi$ert IV Wiring

Step 13 — Adjust Factory--Installed Options

EconoMi$er IV Occupancy Switch —

Refer to Fig. 76 for general EconoMi$er IV wiring.

External occupancy control is managed through a

connection on the Central Terminal Board.

If external occupancy control is desired, connect a time

clock or remotely controlled switch (closed for Occupied,

open for Unoccupied sequence) at terminals marked

OCCUPANCY on CTB. Remove or cut jumper JMP 2 to

complete the installation.

Step 14 — Install Accessories

Available accessories include:

Roof Curb
Thru--base connection kit (must be installed before unit

is set on curb)
LP conversion kit
Manual outside air damper
High Altitude Gas kits
Low Ambient Controls
Thermostat / Sensors

Two--Position motorized outside air damper
EconoMi$er2 (without control/for external signal and

integrated barometric relief)
EconoMi$er IV (with control and integrated barometric

relief)
Power Exhaust
Differential dry--bulb sensor (EconoMi$er IV)
Outdoor enthalpy sensor
Differential enthalpy sensor
CO

2

sensor

DDC interface (PremierLink)
Louvered hail guard
Phase monitor control
Winter Start kit

Refer to separate installation instructions for information

on installing these accessories.

Pre--Start and Start--Up

This completes the mechanical installation of the unit.

Refer to the unit’s Service and Maintenance manual for

detailed Pre--Start and Start--up instructions.

48H

C