Off on – Robertshaw Deluxe Programmable User Manual

Page 22

OUTPUT TERMINAL FUNCTIONS – 300-229

W2.............Energizes auxiliary heat as second stage emer-

gency heat

Y2..............Energizes compressor #2 on a call for second

stage heating or cooling

W1.............Energizes auxiliary heat as last stage heating or

first stage emergency heat

Y1..............Energizes compressor #1 on a call for first stage

heating or cooling

G ...............Fan is energized with a call for heating or cooling

or by pressing the FAN button

R................Independent switching voltage*
24V ............24 VAC hot from the equipment transformer
24V(c)........24 VAC common from the equipment transformer
LED1 .........Free lights for status
LED2

or function indication

RS2 ...........Use to connect outdoor temperature sensor
RS1

and/or indoor remote sensor options. Refer

RS+V

to the instructions included with the sensors.

O ...............Energizes the reversing continuously in the cool-

ing mode

B................Energizes the reversing continuously in the heat-

ing and off modes.

NO.............Relay coil is deenergized in the night
COM

event. In all other events, the relay coil is

energized.

* Allows for DC operation required on some older Lennox

and McQuay units.

To replace a dual transformer system, connect the hot
lead of the higher rated transformer (T1) to the 24V ter-
minal. Connect the common to the 24V(C). Connect the
common of the second transformer to the common lead
of the T1 and tape off or wire nut the hot lead of T2.

Single stage

Multistage

4 events

2 events

4 min. (on/off)

2 min. (on/off)

Unlocked

Locked

Electric

Gas

300-229

24V

24V(c)

LED1
LED2

RS2
RS1
RS+V
NO
COM OCC
NC

Smart fan OFF

LED #1 only

LED #1 with filter symbol

LED #2 only

LED #2 with fault symbol