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Table 4: Programming the T600MEP-2 

 

Press the MENU key while in the 
Status Display Menu to enter the Main 
User Menu. 

 

Overrides Unoccupied Setpoints 
Only Appears if Thermostat is in 
Unoccupied State 
See 

Enabling Override Schedule.

 

 

Resumes Regular Programmed 
Schedule and Setpoints 
Only Appears if Thermostat is in 
Override Mode 
See 

Resuming the Programmed 

Schedule.

 

 

Sets the Temperature Setpoints 
See 

Entering Temperature Setpoints.

 

 

Selects the System Mode 
Default: Automatic Mode 

(auto) 

See 

Selecting the System Mode.

 

 

Selects the Fan Mode 
Default: Automatic 

(auto) 

See 

Selecting the Fan Mode.

 

 

Sets the Occupied and Unoccupied 
Time Periods 
 See 

Programming the Daily Schedule 

– Two Event and Programming the 
Daily Schedule – Four Event.

 

 

Sets the Day and Time 
See 

Setting the Day and Time.

 

 

Sets a Permanent Hold on the 
Schedule or Resumes the Schedule 
See 

Setting Schedule Hold.

 

Enabling Override Schedule  

Note: 

Enabling Override Schedule only appears 

when in Unoccupied Mode. 

The override schedule prompt only appears when the 
thermostat is in the unoccupied state. This menu 
selection gives the user the option of overriding the 
unoccupied setpoints with the occupied setpoints for 
the amount of time specified under the 

Establishing 

the Temporary Occupancy Time (TOccTime)

 

parameter (see the 

Configuring the T600MEP-2

 

section). 

Note: 

If one of the digital inputs is configured to 

operate as a remote override contact, this menu is 
disabled. 

RoomTemp 
75.0 

°

F

 

To override the unoccupied state while in the Main 
User Menu: 

Override 
schd Y/N

 

1.  Answer NO to all prompts until the Override 

Schedule prompt appears. If the Thermostat is in 
the unoccupied state, this is the first prompt. 

2.  Press YES to enable the occupied setpoint. The 

T600MEP-2 returns to the Status Display Menu. 

Resume 
schd Y/N 

When scrolling through the Status Display Menu, 

Override

 now appears for the schedule status 

parameter. 

Resuming the Programmed Schedule 

Temperat 
set? Y/N 

This menu only appears when the T600MEP-2 is in 
the: 

• 

unoccupied override mode 

Sys mode 
set? Y/N 

• 

permanent occupied hold mode 

• 

permanent unoccupied hold mode 

Note: 

If the T600MEP-2 is not in one of these 

modes, this prompt does not appear. Answering yes to 
this prompt enables the T600MEP-2 to resume the 
regularly scheduled program and setpoints. 

Fan mode 
set? Y/N 

To resume the schedule while in the Main User Menu: 

1.  Answer NO to all prompts until the Resume 

Schedule prompt appears. If the thermostat is in 
the override state, this is the first prompt. 

Schedule 
set? Y/N 

2.  Press YES to resume the programmed schedule. 

Clock 
set? Y/N 

The T600MEP-2 returns to the Status Display Menu. 

Entering Permanent Temperature Setpoints 

The first prompt appearing in the Main User Menu of 
the T600MEP-2 is to set the permanent temperature 
setpoints. Permanent setpoints are stored in the 
programmed schedule. 

Schedule 
hold Y/N 

To enter the permanent heating and cooling setpoints 
for the occupied and unoccupied modes, follow the 
steps in Table 5. When changing the temperatures, 
pressing the keys once changes the temperature 
0.5 F/C

°

 and holding down the keys changes the 

temperature by 5 F/C

°

 increments. 

T600MEP-2 Programmable Economizer Thermostat Installation Instructions    

13

 

Summary of Contents for T600MEP-2

Page 1: ...ver using a Phillips head screwdriver Open the thermostat by pulling on the bottom side of the thermostat cover Figure 1 2 Unlock the Printed Circuit Board PCB by carefully pressing the locking tabs t...

Page 2: ...einsert on to the new thermostat To wire the thermostat 1 Strip each wire 1 4 in 6 35 mm and connect to the appropriate terminal according to the wiring diagram see Figure 5 2 Gently push excess wire...

Page 3: ...common from equipment transformer 24 VAC for heating stages Energizes on a call for first stage heating Energizes on a call for second stage heating Configurable auxiliary output Configurable digital...

Page 4: ...keys to adjust values activate a Temporary Setpoint Backlit Liquid Crystal Display LCD The T600MEP 2 uses a two line eight character display Low level backlighting is present during normal operation a...

Page 5: ...nputs DI1 and DI2 section Configures Digital Input 2 Default No Function None See the Configuring the Digital Inputs DI1 and DI2 section Sets Keypad Lockout Level Default No Lockout 0 See the Enabling...

Page 6: ...oling Mode C mech section Sets the Mixed Air Temperature Setpoint Default 55 F 13 C See the Setting the Mixed Air Temperature Setpoint Mix stpt section Displays the Mixed Air Temperature Default None...

Page 7: ...ay before any operation is authorized fan cooling and heating The delay time is adjustable between 10 and 120 seconds This parameter can also be used to sequence the start up of multiple units in one...

Page 8: ...uration Menu 1 Answer NO to all prompts until the anti short cycle timer prompt appears in the display Press YES to enter the anti short cycle timer menu 2 Use the UP DOWN arrow keys to adjust the min...

Page 9: ...er NO to all prompts until the fan delay prompt appears in the display Press YES to enter the fan delay menu 2 Using the UP DOWN arrow keys select on or off Press YES to store the selection The displa...

Page 10: ...temperature is above the heating lockout temperature heating operation is disabled The heating lockout temperature parameter is adjustable from 15 to 120 F 26 to 49 C in increments of 5 F C To change...

Page 11: ...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 S...

Page 12: ...YES to store the temperature The display mixed air temperature prompt is now displayed See Displaying the Mixed Air Temperature Display section for instructions Displaying the Mixed Air Temperature Di...

Page 13: ...User Menu Override schd Y N 1 Answer NO to all prompts until the Override Schedule prompt appears If the Thermostat is in the unoccupied state this is the first prompt 2 Press YES to enable the occupi...

Page 14: ...current mode of operation Temperat set Y N Note Whether the thermostat is heating or cooling the respective setpoint is temporarily adjusted Cooling set Y N Note To toggle between the temporary heatin...

Page 15: ...the time press the UP DOWN arrow keys to change the time in 1 minute increments Hold the keys down to change the time in 30 minute increments Note Programming one of the digital inputs to remote NSB d...

Page 16: ...uling menu Press YES to set the schedule for Monday or NO to advance to Tuesday Press YES to set the occupied start time for Monday or NO to advance to Tuesday selecting NO leaves the thermostat in th...

Page 17: ...the UP DOWN arrow keys to adjust the day When the correct day is displayed press YES to store the day 6 Press YES to choose the time format or NO to access the Main User Menu exit prompt 7 Use the UP...

Page 18: ...t Operating Conditions 32 to 122 F 0 to 50 C 0 to 95 RH noncondensing Ambient Storage Conditions 22 to 122 F 30 to 50 C 0 to 95 RH noncondensing Dimensions H x W x D 4 94 x 3 38 x 1 13 in 125 x 86 x 2...

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