Robertshaw 300-225 Owner's Manual download pdf (Page 14)

OUTPUT TERMINAL FUNCTIONS – 300-224

RH ...............24VAC supply from heating

W .................Energizes the heating equipment with a call

for heating

RC ...............24VAC supply from cooling

Y ..................Energizes the cooling equipment with a call

for cooling

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

cooling or selected by pressing the FAN

button in heating mode.

RS2..............Use to connect outdoor

RS1 temperature sensor and/or

RS+V indoor remote sensor options. Refer to the

instructions included with the sensors.

Equipment load resistors (provided) may be required on

the W, Y and G switching circuits if the equipment loads

do not draw .080 amps.

Connect load resistors at the equipment.

*See important installer’s note on pages 38 and 39.

300-224

RS2

RS1

RS+V

4 min. (on/off) 2 min. (on/off)

Unlocked Locked

Electric Gas

4 min. (on/off) 2 min. (on/off)

Unlocked Locked

Electric Gas

OFF ON

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 39 40

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Robertshaw 300-225 Owner's Manual Page 14