I have a 1969 Airstream Ambassador travel trailer with the original air-conditioner.  I like to upgrade things while keeping them as original as possible.  I decided to rebuild the air-conditioner (new compressor, new fan motor), but while I was at it, I figured I would turn it into a heat pump as well! A heat pump is just an air-conditioner that can change the path of the refrigerant.  In cool mode, the refrigerant goes from the compressor to the heat exchanger outside the cooled space (condenser), through the capillary tube (or thermal expansion valve, TXV), into the heat exchanger inside the cooled space (evaporator), and then back to the compressor.  In heat mode it goes from the compressor to the heat exchanger inside the heated space (condenser), through the capillary tube (or TXV), into the heat exchanger outside the heated space (evaporator), and then back to the compressor.  Remember, heat flows out of the evaporators and into  condensers. This unit uses a capillary tube to restrict refrigerant flow and generate the pressure needed to condense the refrigerant.  

Modern units use TXVs to regulate the pressure of system.  While they are more efficient, they generally only work when the refrigerant flows in one direction unless they are specifically designed for heat pumps.  A capillary tube is a long, thin tube that is a specific diameter and length to generate a specific pressure.  There are no mechanical parts in a capillary tube, therefore refrigerant can flow through it in both directions.  So in order to make this A/C a heat pump, I only needed to add a reversing valve and reroute the copper tubing. Here's what I did: -Remove unit from roof of trailer. -Get part numbers of compressor and fan motor to find compatible replacements, if needed.   -Measure copper tubing diameter so you can but a compatible reversing valve.  Reversing valves come in different sizes based on how big the unit they are designed for.  Try to find a valve that has the same size fittings as the copper tubing in the A/C unit.  If not, you'll have to get adapters to step up or down sizes.  

Remeber, refrigeration copper is "tubing" and is measured on the outside diameter and not "pipe" which is measured on the inside diameter. Step 1: Install the piecesShow All Items« PreviousNext »View All Steps Download Holiday Schedule: Call Center + Showroom Our Call Center + Showroom holiday schedule will be as follows: Items labeled as Quick Ship will ship within 2 business days from our warehouse in New Jersey. Actual delivery times will vary based on your location. If you are ordering multiple items and not all items qualify for Quick Ship, the order will ship when all items are available to ship. Quick Ship may not apply to multiple quantities of the same product. Add an extended warranty for full coverage of parts & labor with fast, in-home repairs by certified technicians. 50% Cash Back Offer on 5 Year Warranties: If no claims are filed during the 5 year period, you are eligible to receive a gift card of 50% off your original arrant purchase price.

Redemption instructions will be sent via mail within a few weeks of your purchase. * Warranties are for residential use only. For commercial use, please call (800) 570-3355 Friedrich wall air conditioner and window air conditioner systems have been a home comfort staple for more than 50 years. best compact ac unitsFriedrich is in the business of making people more comfortable. lg ac parts accessoriesWall air conditioners and window air conditioners from the experts.20 ton ac cost About Friedrich Air Conditioners... Friedrich was founded in 1883 in San Antonio, Texas by Ed Friedrich. Friedrich was a craftsman who designed furniture from the horns of longhorn cattle and later produced other handcrafted products. Learn More about Ed.With 17,800 BTUs of cooling power, the Comfort-Aire RAH-183M Window Air Conditioner with Heat Pump provides year-round comfort for rooms up to 1000 square feet.

This Comfort-Aire AC offers multiple modes and an energy-efficiency ratio (EER) of 9.0. Its full-function remote control and digital display provide convenient access to all of its energy-saving features such as an Energy Saver mode, 24-hour timer, and adjustable airflow. The Comfort-Aire RAH-183M features several operating modes. Cool: Using 17,800 BTUs of cooling power and 3 fan speeds, this Comfort-Aire air conditioner efficiently processes 570 cubic feet of air per minute. Heat: This model provides an efficient heat pump and also switches to electric heat in temperatures under 40 °F. There is no minimum operating temperature for this mode. Dry: In Dry mode, this window AC eliminates humidity by removing 208.8 pints of moisture per day. Fan: Use fan-only operation to prevent room stuffiness in cooler temperatures. This model is equipped with high, medium, and low speed settings as well as an auto fan function that automatically selects a speed based on room temperature.

Auto: When in Auto mode, the Comfort-Aire RAH-183M automatically selects cooling, heating, or fan-only operation based on ambient room temperature. The Comfort-Aire RAH-183M’s heat is efficient because it moves heat instead of creating it. In warm weather, the cool indoor coil absorbs heat from your room and moves it outdoors to cool the area. When it’s cold, the heat pump reverses this operation. By lowering the outdoor coil’s temperature below the outdoor temperature, the heat pump absorbs the heat from outdoors and moves it inside your house. The heat pump works in temperatures above approximately 40 degrees F. Below 40 degrees F, this model switches automatically from reverse-cycle heat pump to 11,000 BTUs of electric heating power, so there is no minimum operating temperature for Heat mode. This Comfort-Aire model also features an Energy Saver mode that maintains a reasonable room temperature while you’re at work because it automatically stops the fan and compressor when your optimal temperature is reached.

Its Sleep mode reduces energy consumption by slightly increasing the temperature in Cool mode (or decreasing it in Heat mode) while you sleep before returning to the set temperature after 6 hours. A digital remote lets you control the mode, fan speed, and other features conveniently from anywhere in the room. The Comfort-Aire 18,000 BTU Window Air Conditioner with Heat Pump is equipped with all the tools you need for secure window installation. Its installation kit includes a top-mounting rail, vertical sash seal, accordion panels, and support brackets. It can be mounted in windows between 26 to 38.1 inches wide or through an outside wall. This is a 230-volt AC that uses a NEMA 6-20P plug type. The 3-prong face looks like this: 24-Hour Timer: Program this AC to turn on or off in 30-minute intervals for up to 24 hours. Ventilation Control: Exhaust smoky or stale air outside by opening the vent to circulate and filter indoor air. Energy-Saving Modes: Energy Saver mode stops the fan and compressor when optimal temperature is reached, and Sleep mode reduces energy use while you sleep.

Adjustable Airflow: An electronic swinging pad provides side-to-side air circulation and the ability to direct airflow to one location. Eco-Friendly: Its R-410A refrigerant does not contribute to ozone depletion. Auto Restart: In the event of a power failure, this model will automatically restart and resume operation in the last programmed settings once power is restored. Washable Air Filter: The reusable air filter saves you money and ensures efficiency. Check Filter Indicator: Located on the unit and remote control, this feature reminds you to clean the air filter to maintain maximum efficiency. The 17,800 BTU Comfort-Aire RAH-183M keeps areas up to 1,000 square feet comfortable, and its features ensure efficient and hassle-free use throughout the year. Multiple Operating Modes: This model cools, heats, dehumidifies, or acts as a fan, and an Auto mode selects the mode that reaches your set temperature the fastest. Energy-Efficient Features: A digital remote control and digital display provide easy access to features like the programmable timer and Energy Saver, Sleep, and Auto modes.