920-159-01 (10-03)

7) Chassis Final Connections

With the chassis in place, you are now ready to begin chassis connections:

A.Move the thermostat switches to "OFF" and "AUTO." This will keep the thermostat from cycling the chassis until final connections are complete.

B.Connect the ductwork onto the 10" collar. Plastic wireties (field supplied) are suggested to secure the ductwork in place. Use 2 wire ties, one for each inner and outer flex duct sleeve.

D.For 208 Volt power only: you must move the transformer wire as shown in Figure 8, Page 9.

E.Review the Final Installation Checklist on Page 12 before replacing the power quick disconnect, reconnecting power to the chassis, plugging in the remote thermostat harness, or operating the chassis.

Electrical shock and moving parts hazard can cause injury or death. If you have not done so, pull out the disconnect head found on the front of chassis before continuing instal- lation! Disconnect external power at the breaker.

8) Final Installation Checklist

oCorrect line voltage?

oChassis deck level?

oPlenum divider baffle installed?

oWall plenum caulked? Level? Flashing?

oHACR type breaker/fuse?

oSingle circuit only?

oDuctwork connected?

oChassis weather seal in place?

oWall thermostat wired correctly?

oChassis inserted into plenum?

RT2 Digital Thermostat

III. Chassis Operation

9) Remote Thermostat Control

The chassis requires a simple single stage heat-cool wall thermostat. Each chassis comes with a terminal strip located in the electrical control box. All internal chassis wiring (low & high voltage) is factory ready for 230 Volt operation. For 208 Volt operation a single wire MUST BE CHANGED ON THE TRANSFORMER. Refer to Figure 8 on page 9.

10) Low Ambient Protection

Each chassis is equipped with Low Ambient Protection in the form of a suction line thermostat. This thermostat will prevent compressor operation at low suction line temperatures. Each chassis is also equipped with a factory installed bellows that will drain water from the base pan to prevent the fan slinger from freezing during winter weather.

11)Heating Defrost (Heat Pump Models Only)

All Heat Pumps have a passive heating defrost system. Defrost occurs as needed and automatically switches to electric heat during defrost. When the outdoor ambient temperature drops below a 45°F factory setting, the chassis automatically switches to electric heat. As outdoor ambient temperatures rise above 45°F, the chassis returns to the heat pump mode. The changeover temperature is user adjustable from approximately 32°F - 55°F. The defrost thermostat may also be used to lock out the compressor in an emergency heat situation.

12

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Friedrich 920-159-01 (10-03) III. Chassis Operation, Chassis Final Connections, Final Installation Checklist
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920-159-01 (10-03) specifications

The Friedrich 920-159-01 (10-03) is a state-of-the-art air conditioning unit designed to offer superior cooling and heating solutions for residential and light commercial applications. Renowned for its efficient performance and innovative technologies, this model is an ideal choice for users seeking reliability and comfort.

One of the key features of the Friedrich 920-159-01 is its energy efficiency. The unit is designed with advanced inverter technology that adjusts the compressor speed to meet the current cooling or heating demand, which not only optimizes energy usage but also provides consistent temperature control. This feature results in significant energy savings, making it an environmentally friendly option for consumers.

The Friedrich 920-159-01 also boasts a sleek, modern design that allows it to blend seamlessly into any interior decor. Its compact size and lightweight construction make installation straightforward, even in smaller spaces. The unit can be mounted on a wall or installed in a window, providing flexibility in how it is set up.

In terms of performance, this model is equipped with a powerful cooling capacity that efficiently handles hot weather conditions. It features multiple cooling speeds and modes, allowing users to tailor the performance to their specific needs. The unit also includes a dehumidification mode that effectively reduces humidity levels, enhancing overall comfort during humid months.

Control of the Friedrich 920-159-01 is made easy with an intuitive remote control that allows for convenient adjustments from anywhere in the room. Additionally, it features a programmable timer and thermostat settings, giving users the ability to schedule operations according to their preferences.

Durability is another hallmark of the Friedrich 920-159-01. It is constructed with high-quality materials that ensure longevity and resilience under extreme conditions. The unit also includes a washable and reusable air filter that helps maintain air quality while minimizing maintenance costs.

In conclusion, the Friedrich 920-159-01 (10-03) stands out in the market for its energy-efficient performance, advanced technologies, user-friendly features, and durable build. This model exemplifies excellence in air conditioning, making it a beneficial investment for any home or small business seeking comfort and climate control.
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