Aprilaire 8870 Wiring the Thermostat, Application Switch #1 Switch #2 Switch #3

Models: 8870

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TABLE 2

APPLICATION

SWITCH #1

SWITCH #2

SWITCH #3

SWITCH #4

Single Stage Furnace & AC

Servant

Fossil

Single

H/C

 

 

 

 

 

Two Stage Furnace & Two Stage AC

Servant

Fossil

Multi

H/C

 

 

 

 

 

Roof Top Unit (Two Stage Heat & Two Stage Cool)

Servant

Fossil

Multi

H/C

 

 

 

 

 

Boiler with AC (Two Transformers)

Servant

Fossil

Single

H/C

 

 

 

 

 

Single Stage Heat Pump

Servant

Electric

Single

HT. Pump

 

 

 

 

 

Two Multi-stage Heat Pump

Servant

Electric

Multi

HT. Pump

 

 

 

 

 

First Stage Radiant Floor Heat

 

 

 

 

Second Stage Furnace One Stage of Cooling

Servant

Fossil

Multi

H/C

 

 

 

 

 

7. WIRING THE THERMOSTAT

a)Strip 1/4" of insulation from each wire to be used. Figure 5 shows all wiring terminal definitions.

b)Secure wires into the terminals on the base according to the appropriate wiring diagram (Table 3 ). Use color-coding practices (i.e. white wire to W terminal) whenever possible.

TABLE 3

APPLICATION

DIAGRAM

PAGE #

Single Stage Furnace & AC

1

16

 

 

 

Two Stage Furnace & Two Stage AC

2

17

 

 

 

Roof Top Unit (Two Stage Heat & Two Stage Cool)

3

18

 

 

 

Boiler with AC (Two Transformers)

4

19

 

 

 

Single Stage Heat Pump

5

20

 

 

 

Two Stage Heat Pump

6

21

 

 

 

First Stage Radiant Floor Heat

 

 

Second Stage Furnace One Stage of Cooling

7

22

7

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Aprilaire 8870 installation instructions Wiring the Thermostat, Application Switch #1 Switch #2 Switch #3

8870 specifications

The Aprilaire 8870 is an advanced smart thermostat that is designed to provide homeowners with precise temperature control, energy efficiency, and ease of use. As an integral part of any modern HVAC system, the 8870 stands out with its sleek design and innovative features that enhance comfort and convenience in everyday living.

One of the most notable features of the Aprilaire 8870 is its Wi-Fi connectivity, which allows users to control their home environment remotely via a smartphone or tablet. This means that homeowners can adjust the temperature, set schedules, and monitor energy usage even when they are away from home. The user-friendly mobile application makes it easy to manage heating and cooling preferences effortlessly.

The touchscreen interface on the 8870 is intuitive, providing a clear display of temperature settings, humidity levels, and system status. The thermostat’s large, easy-to-read screen is backlit, making it convenient for users to operate even in low-light conditions. Additionally, the customizable settings enable users to create personalized schedules based on their lifestyle, promoting energy savings and comfort.

One of the standout technologies integrated into the Aprilaire 8870 is its programmable humidity control. This feature helps maintain optimal humidity levels, enhancing indoor air quality and preventing potential issues such as mold growth and discomfort caused by dry air. By monitoring both temperature and humidity, the thermostat ensures a balanced and healthy indoor environment.

Moreover, the Aprilaire 8870 incorporates energy-saving features such as adaptive scheduling and smart alerts. Adaptive scheduling learns from the homeowner's behavior and adjusts the heating and cooling cycles accordingly. Smart alerts inform users of maintenance needs, filter changes, and extreme temperatures, ensuring that the HVAC system runs efficiently and reliably.

In summary, the Aprilaire 8870 is not just a conventional thermostat; it is a smart home device that optimizes comfort and energy efficiency. With its remote access, programmable settings, humidity control, and user-friendly technology, the 8870 exemplifies how modern thermostats can significantly enhance the home experience. Whether controlling the climate from afar or simply enjoying the ease of a customizable schedule, users can expect improved comfort and lower energy costs with this intelligent thermostat.