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5/2 DAY PROGRAMMABLE COMMERICAL THERMOSTAT
Table 4. Terminal Designations
Terminal Description
R 24VAC
Y1 Compressor Stage 1 cooling
W1 Stage 1 heating
Y2 Compressor Stage 2 cooling
W2 Stage 2 heating
G Fan
L Service indicator
C Common 24VAC
T Remote Temperature Sensor connection 2
T Remote Temperature Sensor connection 2
OC Occupancy output (economizer)
Equipment Protection Timers
Minimum Compressor OFF time: 5 minutes
Minimum Compressor ON time: 4 minutes
Minimum Electric Heat ON time: 3 minutes
Minimum Furnace ON time: 3 minutes
Minimum Furnace OFF time:1-1/2 minutes
Minimum cycle time (applies to both furnace cycle and
elapsed time) between any furnace activation and the next
furnace activation): 6 minutes.
Minimum elapsed time between any compressor activation
and the next compressor activation: 6 minutes.
NOTE - All protection timers (except the compressor OFF
timer) can be over-ridden if a heating or cooling demand is
initiated or terminated using the UP, DOWN, HEAT, or
COOL buttons.
Equipment Protection Override
Both the minimum compressor OFF timer and the minimum
equipment cycle timer can be over-ridden by pressing and
holding either the HEAT or COOL button down for four
seconds.
Filter Reminder
Settings of Off, 1, 3, 6 or 12 (months of fan run time) are
available. When programmed time has elapsed, a FILTER
indicator is displayed.
Maintenance Reminder
Settings of Off, 6 or 12 (months of chronological time) are
available. When programmed time has elapsed, a
maintenance indicator “MAINT” is displayed.
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