White Rodgers 1F95CA-391 specifications Switches, Reset Switch, E2/P Switch DHM Terminal Function

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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 (DHM) TERMINAL FUNCTION

The E2/P switch is located on the back of the thermostat body (see fig. 2). This switch controls how the DHM terminal will be energized.

1.In the P position (up) the DHM terminal will be energized on a call for dehumidification.

2.In the E2 position (down) the DHM terminal will always be energized except on a call for dehumidification. The switch must be in the E2 position on some electronically controlled variable speed blower systems.

1

S18

2

P S19

E2

1Reset switch

2E2/P switch

Figure 2. Switch locations on back of thermostat body

DEHUMIDIFICATION WIRING WITHOUT AN ELECTRONICALLY CONTROLLED VARIABLE SPEED BLOWER SYSTEM FOR SINGLE STAGE COMPRESSOR SYSTEM ONLY

If you have a single stage compressor system see the diagram below. A relay (customer provided) should be installed as shown in Fig. 5 to switch the fan speed to the next lower speed on a call for dehumidification from the thermostat. The reduction in air flow allows the coil to remove more humidity from the air. The relay should be rated for blower motor load. Since this configuration reduces the air flow in cooling, the anti- freeze-up control (White-Rodgers CAFC) or equivalent is recommended. The CAFC prevents the air conditioning coil from freezing due to low air flow, dirty filters, low refrigerant pressure, etc. The CAFC snaps onto the suction line close to the evaporator coil as possible and breaks the compressor circuit when the suction line drops below 38°F and re-make the circuit at 46°F.

NOTE: If you have a two stage compressor, the thermostat software will lengthen cycle times for the first stage of cool. The longer cycles will improve dehumidification while cooling, allowing the DHM terminal not to be used on a two stage compressor system.

Selecting P - DHM Energizes on call for

P

Dehumidification

Selecting E2 - DHM Deenergizes on call for Dehumidification

E2

R

C

Y1

G

DHM

N.C.

N.O.

Customer supplied relay rated for blower motor load

Cool Fan Speed

 

HIGH

 

MED. HIGH

3-4 speed

 

LOW

Blower

 

Motor

 

 

COMMON

 

 

 

Furnace

Speed

Control

Fan

Module

Heat

 

HOT

24VAC

NEUTRAL

120 VAC

TRANSFORMER

Figure 3. Typical Wiring for Dehumidifier System

HM

 

 

R

 

 

 

 

 

 

Relay

 

 

 

 

 

 

 

 

 

HOT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

90-290Q

 

 

 

 

 

 

 

 

 

 

 

 

or equivalent

24 VAC

 

 

 

 

I

 

 

NEUTRAL

120 VAC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TRANSFORMER

 

 

Humidifier

120 VAC

 

 

NEUTRAL

 

 

 

System

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 4. Typical Wiring for 120V Humidifier System

HMR

 

 

 

 

 

 

 

 

 

 

 

 

Humidifier

 

 

 

 

 

 

 

 

 

 

System

24 VAC

 

 

 

 

I

 

 

HOT

120 VAC

 

 

 

 

 

 

 

 

NEUTRAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TRANSFORMER

 

Figure 5. Typical Wiring for 24V Humidifier System

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Contents Specifications PrecautionsDescription Electrical DataInstallation Configuring and PROGRAM- MingRemove OLD Thermostat Attach Base to WallMULTI-STAGE Terminal Outputs Heat Pump Terminal OutputsSwitches Reset SwitchE2/P Switch DHM Terminal Function Reset switch E2/P switchInstaller Configuration Installer Table TimeCompressor OFF Delay Balance Point TemperatureDisabling Automatic Changeover Mode Balance PointService Reminder Check Thermostat Operation Troubleshooting Reset ButtonResetting Thermostat Configuration and Programming TroubleshootingNarrow or wide temperature swing Thermostat Setting and ThermostatNo Cool Heat, Cool or Fan Runs ConstantlyWhy does the system run with Setpoint and room temperatureWhy is the temperature change What is the thermostat Click Test?

1F95CA-391 specifications

The White Rodgers 1F95CA-391 is a multifunctional smart thermostat designed to offer homeowners greater control over their heating and cooling systems. As part of the HVAC industry’s move toward smarter technology, this device blends user-friendly features with advanced automation to enhance energy efficiency and comfort.

One of the standout features of the White Rodgers 1F95CA-391 is its compatibility with multiple heating and cooling systems. It supports conventional, heat pump, and auxiliary heat setups, making it versatile for a wide range of homes and setups. This flexibility ensures that virtually any homeowner can easily integrate it into their existing HVAC system without extensive modifications.

The thermostat boasts a user-friendly touchscreen interface that simplifies programming and daily adjustments. The intuitive design allows users to set schedules based on their daily routines easily. This feature ensures that heating and cooling systems operate only when needed, thereby reducing energy consumption and lowering utility bills.

Another key characteristic of the White Rodgers 1F95CA-391 is its Wi-Fi connectivity. This technology enables homeowners to monitor and control their thermostats remotely via a smartphone or tablet. Users can adjust temperatures, view system status, and even receive alerts about potential issues, ensuring peace of mind and convenience.

Energy-saving technologies are also at the forefront of the White Rodgers 1F95CA-391’s design. It incorporates energy-saving algorithms that learn user preferences and adjust heating and cooling schedules accordingly. Additionally, features such as two-stage heating and cooling management enhance performance while helping to optimize energy consumption.

The White Rodgers 1F95CA-391 is equipped with advanced filtration reminders that alert users when it’s time to change the HVAC system’s filters. Regular filter changes not only prolong the life of the system but also improve indoor air quality.

Lastly, the device is designed with a sleek and modern aesthetic, making it a stylish addition to any home decor. The clear display is easy to read, and the overall design is compact, allowing it to blend seamlessly within any environment.

In summary, the White Rodgers 1F95CA-391 thermostat combines cutting-edge technology with ease of use. Its compatibility with various HVAC systems, remote access capabilities, and focus on energy efficiency make it a valuable investment for any homeowner looking to enhance comfort while optimizing energy use.
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