Setup And Adjustments - Johnson Controls T600MSN-3 Installation Instructions Manual

Table 1: Terminal Identification (See Figure 5.)
Number Label Function
1 Y2 Energizes on a call for second-stage
cooling.
2 Y1 Energizes on a call for first-stage
cooling.
3 G Energizes fan in accordance with
selected fan mode.
4 RC 24 VAC from equipment transformer
5 C 24 VAC (Common) from equipment
transformer
6 RH 24 VAC for heating stage
7 W1 Energizes on a call for first-stage
heating.
8 W2 Energizes on a call for second-stage
heating.
10 Aux Auxiliary output
11 DI1 Configurable Digital Input 1
12 DI2 Configurable Digital Input 2
13 RS Remote Room Temperature Sensor
14 Scom Sensor Common
15 OS Outdoor Air Sensor
16 MS Not Used

Setup and Adjustments

Thermostat Operation Overview
Backlit, plain text
LCD is easy to read
in any condition.
LEDs indicate
system activity.
Five keys on the thermostat
make operation easy and intuitive.
Figure 7: Front Cover of Thermostat
Thermostat User Interface Keys
The T600MSx-3 thermostat user interface consists of
five keys on the front cover (as illustrated in Figure 7).
The function of each key is as follows:
4 T600MSx-3 Multi-Stage Thermostat Installation Instructions
Room Temp
70.0ºF
YES NO
• Use the YES/SCROLL key to:
- confirm menu selections and to advance to the
next menu item
- stop the Status Display Menu from scrolling
and to manually scroll to the next parameter on
the menu
Note: When the thermostat is left unattended for
45 seconds, the thermostat display resumes scrolling.
• Use the NO key to decline a parameter change and
to advance to the next menu item.
• Use the MENU key to:
- access the Main User Menu or exit the menu
- access the Installer Configuration Menu or to
exit the menu (See the Configuring the
T600MSx-3 Thermostat Thermostat section.)
• Use the UP/DOWN arrow keys to change the
configuration parameters and to activate a setpoint
adjustment.
Backlit Liquid Crystal Display (LCD)
The T600MSx-3 thermostat includes a 2-line,
8-character backlit display. Low-level backlighting is
present during normal operation, and it brightens when
any user interface key is pressed. The backlight returns
to low level when the thermostat is left unattended for
45 seconds.
Light-Emitting Diodes (LEDs)
Three LEDs are included to indicate the fan status, call
for heat, or call for cooling:
• The FAN LED is on when the fan is on.
• The HEAT LED is on when heating is on.
• The COOL LED is on when cooling is on.
Programming Overview
There are three menus used to view, program, and
configure the T600MSx-3 thermostat:
The Status Display Menu is displayed during normal
thermostat operation. This menu continuously scrolls
through the following parameters:
• Room Temperature
• Day and Time (T600MSP-3)
• System Mode
• Occupancy Status – Occupied/Unoccupied/
Override (T600MSP-3)
• Outdoor Temperature – An outdoor air temperature
sensor must be connected.