NOTE

IF SAFETY CIRCUITS ARE IN ONLY ONE OF THE SYSTEMS, REMOVE THE TRANSFORMER OF THE SYSTEM WITH NO SAFETY CIRCUITS.

 

 

O

Y1

Y2

G

CUT AND

 

CHANGEOVER

COMPRESSOR

 

 

ENERGIZED

CONTACTOR

 

TAPE OFF!

 

IN COOL

STAGE 2

 

HOT

 

 

 

 

 

120 VAC

24 VAC

 

COMPRESSOR

FAN

 

 

 

CONTACTOR

 

 

 

RELAY

NEUTRAL

 

 

STAGE 1

 

 

 

 

 

B

W1

W2

A1

 

HEAT

 

 

 

RELAY

 

DAMPER

 

STAGE 1

 

 

CHANGEOVER

HEAT

 

ENERGIZED

 

RELAY

 

IN HEAT

 

STAGE 2

 

THERMOSTAT

CONTROL

CIRCUIT

THERMOSTAT

RC

SYSTEM

HOT

 

 

 

 

 

 

 

24 VAC

 

 

 

 

 

120 VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NEUTRAL

DEPENDING ON SYSTEM

REQUIREMENTS, REPLACE WITH A 75VA TRANSFORMER, IF NEEDED

TWO COMMONS MUST

BE JUMPERED TOGETHER!

Figure 5. Typical wiring diagram for two-transformer systems with NO safety circuits

NOTE

Relay contacts shown are thermostatically operated. The accessory relay scheme is required when safety circuits exist in both systems.

!CAUTION

Polarity must be observed. If the HOT side of the second transformer is jumpered to the COMMON side of the first transformer a short will be made. Damage to equipment will occur when power is restored.

THERMOSTAT

CONTROL

CIRCUIT

THERMOSTAT

O

Y1

Y2

G

B

W1

W2

A1

C

R

CHANGEOVER

 

COMPRESSOR

 

HEAT

 

 

ENERGIZED

 

CONTACTOR

 

RELAY

 

DAMPER

IN COOL

 

STAGE 2

 

STAGE 1

 

 

 

 

 

 

 

 

 

SYSTEM

 

 

 

 

 

 

 

 

 

LIMIT OR

 

 

 

LIMIT OR

 

 

 

 

 

 

 

 

SAFETY

 

HOT

SAFETY

24 VAC

 

 

 

 

 

120 VAC

SWITCHES

 

 

 

SWITCHES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NEUTRAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COMPRESSOR

 

FAN

 

CHANGEOVER

 

HEAT

CONTACTOR

 

 

ENERGIZED

 

RELAY

 

RELAY

 

 

STAGE 1

 

 

IN HEAT

 

STAGE 2

 

 

 

 

 

 

 

 

 

 

 

TWO COMMONS MUST

BE JUMPERED TOGETHER!

24 VAC

ACCESSORY RELAY N.O.

CONTACT

COMMON

LIMIT OR

SAFETY

SWITCHES

COMMON

24 VAC

HEATING

TRANSFORMER

LIMIT OR

SAFETY

SWITCHES HOT

120 VAC

NEUTRAL

COOLING

TRANSFORMER

Figure 6. Typical wiring diagram for two-transformer systems with safety circuits in BOTH systems

5

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Image 5
White Rodgers 1F95W-80 installation instructions Cut

1F95W-80 specifications

The White Rodgers 1F95W-80 is a programmable thermostat designed to enhance home comfort while optimizing energy efficiency. This device stands out due to its user-friendly interface and advanced features, making it a popular choice for homeowners seeking reliable temperature control.

One of the most notable features of the 1F95W-80 is its 7-day programmable schedule. Users can easily set different heating and cooling schedules for each day of the week, allowing for tailored climate control that aligns perfectly with their routines. This feature not only improves comfort but also helps in reducing energy consumption, as users can program the thermostat to lower temperatures when they are away from home or sleeping.

The thermostat uses a large, easy-to-read LCD display that provides clear information at a glance. The touchscreen interface simplifies navigation, allowing users to make adjustments quickly and efficiently. Additionally, the backlit display makes it easy to read in low light conditions, ensuring that temperature adjustments can be made regardless of the time of day.

In terms of technologies, the 1F95W-80 is equipped with Smart Recovery functionality. This innovative feature learns the time it takes to heat or cool a space and adjusts the temperature accordingly, ensuring that the desired comfort level is reached by the programmed time. This proactive approach helps to enhance energy savings while maintaining optimal comfort.

Another significant characteristic of the 1F95W-80 is its compatibility with a variety of HVAC systems. It is designed to work with multi-stage heating and cooling systems, including heat pumps, forced air systems, and even some electric baseboards. This versatility makes it an ideal choice for different types of homes and setups.

Furthermore, the thermostat includes features such as an adjustable temperature swing, which allows users to set their desired level of temperature variance before the system kicks in, as well as a filter change reminder that helps maintain HVAC system efficiency.

Overall, the White Rodgers 1F95W-80 combines practicality and innovation, making it a smart investment for those looking to enhance their home's heating and cooling experience while simultaneously managing energy costs. With its array of features and user-friendly design, it stands as a reliable option in the ever-evolving landscape of home climate control solutions.