. . . . . . . . . . . . . . . . . . . . . . . . . .1 WIRE REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . . . . 2 1. SELECT A MOUNTING LOCATION. . . . . . . . . . .3 2. OPEN THE THERMOSTAT . . . . . . . . . . . . . . . . .4 3. MOUNT THE THERMOSTAT BASE TO THE WALL . . . . . . . . . . . . . . . . . . . . . . . . . . .5 4. SET THE CONFIGURATION DIP SWITCHES ON THE THERMOSTAT CIRCUIT BOARD . . . . .6 PAGE 5. WIRE THE THERMOSTAT TO THE HVAC EQUIPMENT . . . . . . . . . . . . . . . . . . . . . .

INSTALLATION INSTRUCTIONS MANUAL TABLE OF CONTENTS Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Model 8870 Thermostat Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.HVAC System Pre-Installation Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 2. What’s In The Box . . . . . . . . . . . . . . . .

Model 8800 Universal Communicating Thermostat Model 8800 Universal Communicating Thermostat Owner’s Manual Includes Operating Instructions and Warranty Information READ AND SAVE THESE INSTRUCTIONS 61000762A 8800 Tstat Owners.indd 1 3/28/11 4:19:57 PM TAblE Of CONTENTS TAblE Of CONTENTS AbOUT yOUR NEw THERMOSTAT Thermostat features 3 Controls & display overview 4-5 OpERATION Select system mode (HEAT/COOL) 6 Change temperature set point 6 Select fan setting (ON/AUTO/CIRC) 7 Clean screen 7 Maintena

Only use your fingertips. THERMOSTAT fEATURES • Large touch screen with adjustable backlight – constant backlight available. • Message center provides feedback and instructions. • 7 day programmability or separately programmable weekday/weekend schedules. • Thermostat can be removed from the wall for easy programming (batteries must be installed). • Front battery door access for fast, easy replacement. • Displays room temperature, temperature setting, and optional outdoor temperature. • Air filt

• Wait 4-minutes for 2nd Stage: – Y1, Y2 and G terminals will energize. • Set the thermostat to the OFF mode. Symptom Cause Thermostat does not call for cooling Minimum-off times. Change the mode to OFF first, then change the mode to COOL and make a call for cooling. Cooling does not come on at all RC terminal not connected – see wiring diagrams. Cooling equipment power not on. Heat comes on instead of cooling Reversing valve wiring. Miswiring – check wire colors at thermostat and HVAC equipment

Therefore, it is suggested actual time you want your home to reach the desired temperature. For example, 6 degree setback, set your Morning event at 6:00 AM to be sure the desired temperature is reached by 7:00 AM. NOTE: This thermostat can be programmed with either 2 events per day (day and night) or day, evening, and night). Before programming the thermostat, decide which setting is best The thermostat is factory preset for 4 events per day. To change to two events per day, refer to page 20 “O

• Hold a New Temperature Set Point: Press and hold the DECREASE button or INCREASE button to change the room set-point temperature in 1 degree steps. The new can be maintained indefinitely by pressing and releasing the HOLD button. The word “ HOLD” will be displayed. The thermostat will maintain this new set-point temperature until RESUME button is pressed returning the thermostat to the original program. This procedure is typically extended vacant periods (vacations, business trips, etc.), to h

In this mode the heat pump will maintain the temperature according to the programming override temperature has been entered. The heating and same time. Either will turn on depending on which programmed temperature. Note that both the Snowflake, “ “, and Flame, “ “, icons are on the display. The Snowflake will flash or the Flame will flicker depending on whether the heat pump is heating or cooling. • Turning the System Off: Press the MODE button until the word " OFF" appears on the display. In th

. . . . . . . . . . . . . . . . . . . . . . . . .1 Setting Or Changing The Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Setting Or Changing The Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Progressive Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Program Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

If you feel that the furnace or air conditioning system turns on and off too many times per hour, ask your contractor about changing the switch to a 4 minute minimum on time. Keep in mind however that this may increase the overall temperature variation in the house due to longer run and off times. DO NOT change the position of this switch without first consulting with your contractor. – 19 – No. 2 – Keypad Lock. If tampering with the thermostat is expected and unwanted, the keypad can be locked