Operation Manual

T600MEP-3 Multi-stage Economizer Thermostat Installation Instructions8
H stage Reverts the operation of a two-stage
thermostat to a single-stage
thermostat when the second heating
stage is not needed.
Default: 2.0
(1.0): One Stage
(2.0): Two Stages
C stage Reverts the operation of a two-stage
thermostat to a single-stage
thermostat when the second cooling
stage is not needed.
Default: 2.0
(1.0): One Stage
(2.0): Two Stages
H lock Discontinues heating operation in
response to the outdoor air
temperature. Requires that an
outdoor air temperature sensor be
installed and connected.
Default: 120°F/49°C
Range: -15°F/-26°C to 120°F/49°C adjustable in 5F°/5C° increments
C lock Discontinues cooling operation in
response to the outdoor air
temperature. Requires that an
outdoor air temperature sensor be
installed and connected.
Default: -40°F/-40°C
Range: -40°F/-40°C to 95°F/35°C adjustable in 5F°/5C° increments
2/4event Sets the number of events within a
24-hour period.
Default: 4.0
(2.0): Two events (one occupied and one unoccupied) within a
24-hour period
(4.0): Four events (two occupied and two unoccupied) within a
24-hour period
Aux cont Energizes peripheral devices
(lighting equipment, exhaust fans,
and economizers).
Default: n.o.
(n.c.): Contact open = Occupied; contact closed = Unoccupied
(n.o.): Contact closed = Occupied; contact open = Unoccupied
The contact toggles with the internal Occupied/Unoccupied
schedule (or the NSB contact on one of the digital inputs, if used).
Prog rec Provides the desired occupied
temperature either at the start of the
occupied schedule or after the
occupied schedule begins.
Default: off
(on): Enabled (provides the desired occupied temperature at the
start of the occupied schedule)
(off): Disabled (provides the desired occupied temperature after the
occupied schedule begins)
Chngstpt
3
Sets the economizer changeover
strategy, based on the outdoor air
temperature. Requires that an
outdoor air temperature sensor be
installed and connected.
When the OA temperature is below
the changeover setpoint, free
cooling is used (economizer
operation). When the OA
temperature is above the setpoint,
mechanical cooling is used
(compressor operation).
Default: 55.0°F/13.0°C
Range: 14.0°F/-10.0°C to 70.0°F/21.0°C
Table 2: Installer Configuration Menu (Part 4 of 5)
Parameter
Appearing
on Display
Description and Default Selection Options