Instruction/ maintenance manual of the product 38YCW Carrier
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38YCW 10 SEER Split-System Heat Pump Installation and Start-Up Instructions NOTE: Read the entire instruction manual before starting the installation. This symbol → indicates a change since the last issue.
INSTALLATION Step 1 — Check Equipment and Job Site UNPACK UNIT Move to final location. Remove carton, taking care not to damage unit. INSPECT EQUIPMENT File claim with shipping company prior to installation if shipment is damaged or incomplete. Locate unit-rating plate on unit-service panel.
Step 8 — Make Piping Connections Relieve pressure and recover all refrigerant before system repair or final unit disposal to avoid personal injury or death. Use all service ports and open all flow-control devices, including solenoid valves. If ANY refrigerant tubing is buried, provide a 6 in.
NOTE: Install branch-circuit disconnect of adequate size per NEC to handle unit-starting current. Locate disconnect within sight from and readily accessible from unit, per Section 440-14 of NEC. ROUTE GROUND AND POWER WIRES Remove access panel and control box to gain access to unit wiring.
COOLING-ONLY PROCEDURE NOTE: If superheat- or subcooling-charging conditions are not favorable, charge must be weighed in accordance with unit-rating plate ±0.6 oz/ft of 3/8-in. liquid line above or below 15 ft respectively. EXAMPLE: To calculate additional charge required for a 25-ft line set: 25 ft – 15 ft = 10 ft X 0.
Fig. 6 — Typical 24v Circuit Connections A01384 24 V AC HOT R C W Y G R C RVS COOLING C W2 OTHER NON-PROGRAMMABLE HP THERMOST A T F A, FB, FC, FD, FF F AN COIL HEA T PUMP G O E W2 R Y 24 V AC COM HE.
SEQUENCE OF OPERATION NOTE: Defrost-control board is equipped with 5-minute lockout timer that may be initiated upon any interruption of power. With power supplied to indoor and outdoor units, transformer is energized. Cooling On a call for cooling, thermostat makes circuits R-O, R-Y, and R-G.
If it is desirable to observe a complete defrost in warmer weather, the thermostat must be closed as follows: 1. Turn off power to outdoor unit. 2. Disconnect outdoor fan motor lead from OF2 on control board. (See Fig. 8.) Tape to prevent grounding. 3.
An important point after buying a device Carrier 38YCW (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 38YCW 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 38YCW - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Carrier 38YCW you will learn all the available features of the product, as well as information on its operation. The information that you get Carrier 38YCW will certainly help you make a decision on the purchase.
If you already are a holder of Carrier 38YCW, 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 38YCW.
However, one of the most important roles played by the user manual is to help in solving problems with Carrier 38YCW. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Carrier 38YCW 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
