CONFIGURATION
SWITCHES
RESET SWITCH
See the Troubleshooting section at the end of this document for more information about the function of this switch.
E2/P SWITCH
The E2/P switch is located on the back of the thermostat body (see fig. 2). This switch controls how the E2/P terminal of the thermostat will be energized. When the switch is in the E2 position (down), the E2/P terminal will be energized only when in emergency heat. When the switch is in the P position (up), the E2/P terminal will always be energized except when in emergency heat. Consult the equipment manufacturer or a qualified heating/cooling service person before setting this switch. If your system has no connection to E2/P, no change in the switch setting is required.
1
S18
2
P S19
E2
1Reset switch
2E2/P switch
Figure 2. Switch locations on back of thermostat body
INSTALLER CONFIGURATION
BEFORE TURNING POWER ON, please read the following instructions. Before operating the system, you must configure the thermostat to operate properly with your equipment.
The thermostat, as it comes from the factory, is configured to operate a standard multi-
stage electric forced hot air system with a single stage air conditioning compressor
and fan. In this configuration, the thermostat will turn on the fan immediately on a call for heat. If you are unsure whether your system requires the thermostat to control the fan, contact your furnace/air conditioning system manufacturer or a qualified heating/air conditioning service person.
Your new thermostat has an Installer menu, which allows you to customize the thermostat to meet your requirements. (The thermostat also has a User menu and a Keypad Lockout menu; these menus are explained further in the Operating Instructions.)
The menu settings can be changed at any time to meet system or personal requirements.
ENTERING THE CONFIGURATION MENUS
After properly wiring the thermostat, turn on power to the system. Momentarily press
PROGRAM RUN to make certain the thermostat is in the run program mode, then
press TIME FWD and TIME BACK at the same time to enter the User Configuration menu. When the display changes to the first item in the configuration menu, release the buttons. Then press and hold SET TIME and SET DAY for approximately 3 seconds to
enter the Installer menu. The display will change to show the first item on the Installer menu
Once in the menu, you set each item to the
proper selection using 
or 
, then press TIME FWD to change the display to
the next item or TIME BACK to return to the previous item .
To exit the menu at any time, press PRO-
GRAM RUN .
MULTI-STAGE/HEAT PUMP MODE.
(Installer table step 1.) Use this item to select the system type
IF YOU HAVE A HEAT PUMP SYSTEM,
you must select HEAT PUMP here. This sets up proper default values for most heat pump systems. This selection also makes available some additional menu items that apply only to heat pump systems.
HEAT PUMP COMPRESSOR CONFIGURATION.
(Installer table step 2; this menu item is displayed only when heat pump was selected in step 1.) Use this item to select the number of heat pump compressors and how they are connected.
ELECTRIC HEAT FAN
CONFIGURATION.
(Installer table step 3.) This menu item determines whether fan control will be through the thermostat or through the heating
system. If you have an electric heat or other system that REQUIRES the thermostat to control the fan, set this item ON. This allows the thermostat to energize the fan immedi- ately on a call for heat. If you are unsure if the system requires the thermostat to control the fan, contact the equipment manufacturer or a qualified heating and air conditioning service person. If your system controls fan operation (as with most fossil fuel systems), set this item to OFF. Note that with heat pump systems, the fan always cycles with the compressor.
SET CYCLE HEAT, COOL, AUX (ANTICIPATION).
(Installer table steps 4 through 6; step 6 is for heat pump only). These items allow the cycle times in heating, cooling and auxiliary (heat pump only) to be increased or decreased. The factory set values can be adjusted higher for longer cycles or lower for shorter cycles.
NOTE: Some manufacturers still instruct you to set the anticipator to the current draw of the equipment. That instruction applies only to mercury bulb or mechanical thermostats; it does not apply to this digital thermostat. As configured at the factory, this thermostat will maintain an accurate temperature. No further adjustment is necessary, although you can use these menu items to customize the performance of the thermostat to your requirements.
The adjustment range for HEATING is from 1 to 40 (9 to 40 for heat pump). The factory preset is 5 (13 for heat pump). The adjust-
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