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OPERATING THE THERMOSTAT
Notes on temperature adjustments:
• The COOL setting must always be a minimum of 2° (F or C) higher than the HEAT setting.
The thermostat will automatically maintain the 2° difference. For example, if the Cooling
set point is 75°F and one changes the Heating set point to 74°F, the thermostat will
automatically change the Cooling set point to 76°F.
• The lockout icon will appear on the display when attempting to make a change, if the
thermostat has been configured to be locked out or the desired change violates the ther-
mostat limits (i.e. lowest allowable HEAT setting is 40°F, highest allowable COOL setting is
90°F, etc.). Lockout configuration can be altered in set-up menu (see section 5).
1. SELECT THE MODE
The thermostat can be set to OFF, COOL, HEAT or COOL (AUTO-CHANGEOVER), EM. HEAT (for
heat pumps only), and HEAT modes. To set, press the MODE button until the desired mode
appears on the display (see Figure 3).
• OFF – Select the OFF mode to prevent the heating and cooling equipment from operating.
• COOL – COOL appears on the display and only the cooling equipment will be operated
to maintain the temperature at the COOL setting. COOL will flash on the main display
when the cooling equipment is operating.
4
CAUTION: Do not set to OFF mode during periods when
freezing temperatures could occur.