Digital Control User Input Configuration

The adjustable control dip switches are located at the lower left hand portion of the digital Smart Center. The inputs are only visible and accessible with the front cover removed from the PTAC.

Dip Switch Setting

1.Emergency Heat Override – Switch 1

In the unlikely event of a compressor failure a heat pump unit may be switched to operate in only the electric heat mode until repairs can be made. Moving Dip Switch 1 to ‘ON’.

2.Wall Thermostat Switch 2

In order to enable the wall thermostat move Dip Switch to 'ON'.

3.Fan Cycle Control – Switch 3-4

All PTACs are shipped from the factory with Dip Switch 3-4 in the ‘OFF’ position. In this position the cooling fan cycle will run continuously providing air circulation during the warm months. The heating fan cycle is set to 'cycle' on and off. The fan may be set to 'continuous' mode by switching Dip Switch 3 to 'ON' position.

4.Electronic Temperature Limiting – Switches 5-6

The digital control is set from the factory to allow a temperature range between 61° F and 86° F in both heating and cooling mode. Dip Switches 5-6 can be used to set high and low limits for either heating both, cooling both or both.

From the factory switches are in the down 'OFF' position. The chart below shows the available electronic limiting ranges.

5.Room Freeze Protection – Switch 7

Units are shipped from the factory with the room freeze protection enabled. Room Freeze Protection can be switched off at the owner’s preference by moving Dip Switch 7 to ‘OFF’. This feature will monitor the indoor room conditions and in the event that the room falls below 40°F the unit will cycle on high fan with the electric heater. This occurs regardless of mode.

Figure 31

Dip Switches

DIP SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

 

3

 

4

5

 

6

7

 

DOWN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOCATION OF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Freeze guard

 

DIP SWITCHES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON UNIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Setpoint Limit 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Setpoint Limit 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fan CON/CYC for cooling

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fan CON/CYC for heating

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wall Thermostat enable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Electric heat only (for Heat Pumps)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FRP028

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Switch

 

Description

 

 

 

Function

 

 

 

 

 

Factory Setting

 

 

Option

 

 

 

 

1

 

Emergency Heat Override

Enables electric heat only operation in the event of a com-

Down - Normal Operation

 

Up - Overrides compressor operation.

 

 

 

for PDH Heat Pump

 

pressor failure on HP models.

 

 

 

 

 

 

(PDH models only)

 

 

 

 

 

Models

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

Wall Thermostat Switch

 

Enables the use of a wall thermostat or unit controls

Down - Unit Controls

 

 

Up - Enables Wall Thermostat Usage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

Fan Cycle for Heating

 

Allows selection of continuous fan or cycling in heating mode.

Down - Cycle

 

 

Up - Continuous

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

Fan Cycle for Cooling

 

Allows selection of continuous fan or cycling in cooling mode.

Down - Continuous

 

 

Up - Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

Setpoint Switch 1

 

Allows the temperature setpoint range to be adjusted.

Down

61F-86F

 

Up

63F-80F

Down

65F-78F

Up

68F-75F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

Setpoint Switch 2

 

 

 

 

 

 

 

 

 

 

Down

(16C-30C)

 

Down

(18C-28C)

Up

(19C-26C)

Up

(20C-24C)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

Room Freeze Protection

 

Allows the unit to ensure the indoor room temperature does

Down - Freeze Protection Enabled

Up - Freeze Protection Disabled

 

 

 

 

 

 

 

 

 

 

not fall below 40F even when turned off.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23

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Image 23
Friedrich 920-087-09 (12/10) operation manual Digital Control User Input Configuration, Dip Switch Setting, Dip Switches
Page 22 Page 24

920-087-09 (12/10) specifications

The Friedrich 920-087-09 (12/10) is a remarkable air conditioning unit that exemplifies innovation in climate control technology. Designed for both residential and commercial environments, this model stands out for its efficiency, reliability, and user-friendly features.

One of the key characteristics of the Friedrich 920-087-09 is its impressive cooling capacity. With a nominal cooling power of 12,000 BTU, it is ideal for medium to large spaces, effortlessly maintaining comfortable indoor temperatures even during the hottest months. The unit offers a seasonal energy efficiency ratio (SEER) that meets contemporary standards, ensuring that it operates efficiently while consuming less energy. This feature not only lowers electricity bills but also reduces the overall environmental impact.

The Friedrich 920-087-09 is equipped with advanced inverter technology, allowing it to adjust its cooling power according to the temperature needs of the room. This results in quieter operation and enhanced energy savings as the unit avoids the frequent on-off cycles typical of conventional systems. Furthermore, the unit boasts a variable-speed compressor that guarantees consistent performance and improved humidity control.

Another standout feature of the Friedrich 920-087-09 is its sophisticated air filtration system. It includes a washable filter that captures dust, pollen, and other airborne particles, promoting cleaner air quality. This is particularly beneficial for those with allergies or respiratory issues, creating a healthier living environment.

The unit also features a customizable digital thermostat that allows users to set precise temperature preferences. With its user-friendly interface, users can easily switch between different modes, including cooling, heating, and dehumidifying, adding to the flexibility of the system. Additionally, Friedrich's exclusive Quiet Master technology minimizes noise levels, making it suitable for bedrooms, offices, and other quiet areas.

The Friedrich 920-087-09 also comes with a range of connectivity options, including Wi-Fi integration. This functionality allows users to control the air conditioning unit remotely through a smartphone app, making it exceptionally convenient for those with busy lifestyles.

Overall, the Friedrich 920-087-09 (12/10) combines cutting-edge technology, energy efficiency, and a host of user-friendly features, making it a top choice for anyone looking to enhance their indoor comfort. Its design is not only functional but also aesthetically pleasing, allowing it to blend seamlessly with a variety of interiors.
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