The display now shows the auxiliary contact
configuration prompt. See
Configuring the Auxiliary
Contact (Aux cont)
section for instructions.
Configuring the Auxiliary Contact (Aux cont)
The auxiliary contact is an output that can be used to
energize peripheral devices (for example, lighting
equipment, exhaust fans, and economizers). The
contact can be configured as normally open or
normally closed and toggles with the internal
occupied/unoccupied schedule (or the NSB contact on
one of the digital inputs, if used).
Table 3: Operation of Auxiliary Contact
Configuration
Setup
Contact
Occupied
Status
Contact
Unoccupied
Status
Normally Opened
Closed Opened
Normally Closed
Opened Closed
To configure the auxiliary contact while in the Installer
Configuration Menu:
1. Answer NO to all prompts until the auxiliary
contact prompt appears in the display. Press YES
to enter the auxiliary contact menu.
2. Use the UP/DOWN arrow keys to select Normally
Open (N.O.) or Normally Closed (N.C.). Press
YES to store the selection.
The display now shows the progressive recovery
prompt. See
Enable/Disable the Progressive Recovery
(Prog Rec)
section for instructions.
Enable/Disable Progressive Recovery (Prog Rec)
When progressive recovery is enabled, the desired
occupied temperature is attained by the time the
occupied schedule starts.
When progressive recovery is disabled, the system
restarts at the programmed occupied time.
Note:
Programming one of the digital inputs to
remote NSB disables the progressive recovery
function.
To enable or disable the progressive recovery feature
while in the Installer Configuration Menu:
1. Answer NO to all prompts until the progressive
recovery prompt appears in the display. Press
YES to enter the progressive recovery menu.
2. Use the UP/DOWN arrow keys to select
on
or
off
.
Press YES to store the selection.
The display now shows the economizer changeover
setpoint menu. See
Setting the Economizer
Changeover Temperature (Chngstpt)
section for
instructions.
Setting the Economizer Changeover Temperature
(Chngstpt)
The T600MEP-2 economizer changeover strategy is
based on outdoor air temperature (requires outdoor air
temperature sensor). When the outdoor air
temperature is below the changeover setpoint, free
cooling is used (economizer). When the outdoor air
temperature is above the setpoint, mechanical cooling
is used (compressor).
To adjust the changeover setpoint while in the Installer
Configuration Menu:
1.
Answer NO to all prompts until the economizer
changeover setpoint prompt appears in the
display. Press YES to enter the changeover
setpoint menu.
2.
Use the UP/DOWN arrow keys to adjust the
economizer changeover temperature. Press YES
to store the value.
The display now shows the outdoor air damper
minimum position menu. See
Setting the Outdoor Air
Damper Minimum Position (Min pos)
section for
instructions.
Setting the Outdoor Air Damper Minimum Position
(Min pos)
The minimum position for the outdoor air dampers on
the economizer can be adjusted as necessary. The
dampers are energized to minimum position when the
fan (G terminal) is energized and the thermostat is in
the occupied mode. When the schedule is in the
unoccupied mode, the minimum position is 0%.
To set the minimum position for the outdoor air
dampers while in the Installer Configuration Menu:
1.
Answer NO to all prompts until the minimum
position setpoint prompt appears in the display.
Press YES to enter the minimum position menu.
2.
Use the UP/DOWN arrow keys to adjust the
minimum position for the outdoor air damper.
Press YES to store the value.
The display now shows the mechanical cooling mode
menu. See
Setting the Mechanical Cooling Mode
(C mech)
section for instructions.
T600MEP-2 Programmable Economizer Thermostat Installation Instructions
11
