Engineering Data Guide

54 Product Data

PTAC

6RWU0-02AControl device

Remote / Local Control

When the Remote/Local dip switch #1 is "ON", it allows the unit to operate by means of Remote Wall Thermostat Control.

When this option is in function, the unit cannot be controlled by means of the knobs.

Energy Saver

When the Energy Saver dip switch #2 is in the "On" position, the indoor fan operates when the compressor is running and

the fan stops operating when the compressor stops running. But when the switch is in the "Off" position, the indoor fan runs

continuously irrespective of the fact that the compressor is running or not.

Front Desk Control

When the paired wire is connected to the two connectors FD2 and FD1(refer to

the figure below), the unit can be turned ON and OFF with a switch located at the

Front Desk Control Panel. When the Front Desk switch is "On", the unit operates

by means of the setting at the Front Desk .And when the Front Desk switch is

"Off", the air conditioning unit operates by the settings made at the Unit itself. In

the "Off" position the Front Desk control cannot be exercised.

Wire # AWG Maximum Length

#22 600ft(180m)

#20 900ft(270m)

#18 1500ft(450m)

#16 2000ft(610m)

(Molex Housing Spec 396-06V)

(recommended wire lengths)

Note: The following figures show

wiring schematics for heat pump

and straight cool units with electric

heat, respectively.

FD2 FD1 DR2 DR1 MS2 MS1

Wiring Schematic for

Remote Heat Pump

Wiring Schematic for

Straight Cool Unit.

Front Desk Control

Door Switch

Motion Sensor