Instruction/ maintenance manual of the product 38YRA Carrier
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38YRA Heat Pump—Outdoor Section Installation and Start-Up Instructions NOTE: Read the entire instruction manual before starting the installation. This symbol → indicates a change since last issue.
Install TXV kit to indoor coil as follows: 1. Install suction tube adapter. 2. Install liquid flare-to-sweat adapter. 3. Install TXV on liquid flare-to-sweat adapter. 4. Connect external equalizer tube to fitting on suction tube adapter. 5. Position sensing bulb on horizontal portion of suction tube adapter.
7. Do not suspend refrigerant tubing from joists and studs with a rigid wire or strap which comes in direct contact with the tubing. (See Fig. 3.) 8. Ensure that tubing insulation is pliable and completely sur- rounds the vapor tube. 9. When necessary, use hanger straps which are 1 in.
A brazing shield MUST be used when tubing sets are being brazed to the service valves to prevent damage to the painted unit surface. Relieve pressure and recover all refrigerant before system repair or final unit disposal to avoid personal injury or death.
5. Set room thermostat at HEAT or COOL and fan switch at ON or AUTO, as desired. Operate unit for 15 minutes. Check system refrigerant charge. (See Step 10.) SEQUENCE OF OPERATION — With power supplied to indoor and outdoor units, transformer is energized.
→ Fig. 9—Typical 24-v Circuit Connections A94390 FAN COIL Y/Y2 W/W1 C R 24 VAC HO T 24 VAC CO M HEAT STAGE 2 COOL/HEAT STAGE 1 INDOOR FAN CORPORATE NON-PROGRAMMABLE THERMOSTAT MODEL HP HEAT PUMP R.
→ Fig. 9—Typical 24-v Circuit Connections (continued) A95330 FAN COIL Y/Y2 W/W1 C R 24 VAC HO T 24 VAC CO M HEAT STAGE 2 COOL/HEAT STAGE 1 INDOOR FAN CORPORATE NON-PROGRAMMABLE THERMOSTAT MODEL HP.
WIRING DIAGRAM NOTES: 1. Underlined letter on dual terminal indicates its usage. Outdoor Temperature Sensor must be attached in all dual fuel installations. Jumper wire between O/W2 and L thermostst terminals MUST be present. 2. Y1 and O connections to 2-stage furnaces MAY NOT EXIST, or may be only a wire rather than a screw terminal.
An important point after buying a device Carrier 38YRA (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Carrier 38YRA yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Carrier 38YRA - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Carrier 38YRA you will learn all the available features of the product, as well as information on its operation. The information that you get Carrier 38YRA will certainly help you make a decision on the purchase.
If you already are a holder of Carrier 38YRA, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Carrier 38YRA.
However, one of the most important roles played by the user manual is to help in solving problems with Carrier 38YRA. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Carrier 38YRA along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
