Description Of The Dip Switch Functions - Robertshaw 300-224 Installation And Programming Instructions

DESCRIPTION OF THE DIP SWITCH FUNCTIONS

2 Events or 4 Events Per Day (300-225, 300-227, 300-229)
Your thermostat can be set to either 2 events or 4 events per day.
2 events will allow you to program a Day ✥ setting and a Night ✠ setting.
4 events will allow you to program Morning ✣ , Day ✥ , Evening ✤ and Night ✠ settings.
Smart Fan (300-225, 300-227, 300-229)
When the Smart Fan switch is in the ON position and the fan & has been energized (during
the occupied program), the thermostat will keep the fan running continuously during the occu-
pied programs and automatically cycle the fan with a call for heating or cooling during the unoc-
cupied program. NOTE: The unoccupied program is the Night program.
2 Minute or 4 Minute Minimum On Times
Keypad Lock
Place the switch in the locked position to lockout all buttons except the OUTDOOR button.
Plenum Fan Switch (300-224, 300-225, 300-229)
OFF – Fan comes on immediately with heat (used on electric heat).
ON – Fan is controlled by the system (used on gas/oil heat).
Standard/Add-on Heat Pump (300-226, 300-227)
For most heat pump applications, this switch should be left in the standard position. This will
allow the compressor and the auxiliary heat to be on simultaneously. For add-on heat pumps,
or heat pumps that require fossil fuel kits, move this switch to the add-on position. This will turn
off the compressor with a call for auxiliary heat.
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