Instruction/ maintenance manual of the product 38TDB Carrier
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38TDB WeatherMaker™ Two-Speed Air Conditioning Unit with Puron® Installation and Start-Up Instructions NOTE: Read the entire instruction manual before starting the installation.
INSPECT EQUIPMENT File claim with shipping company prior to installation if shipment is damaged or incomplete. Step 2—Install on a Solid, Level Mounting Pad If conditions or local codes require the unit be attached to pad, tie down bolts should be used and fastened through knockouts provided in unit base pan.
8. Install vapor elbow (see Fig. 5B) with equalizer adapter to suction tube of line set and suction connection to indoor coil. Adapter has a 1/4-in. male connector or attaching equalizer tube. 9. Connect equalizer tube of TXV to 1/4-in. equalizer fitting on vapor line adapter.
Do not leave system open to atmosphere any longer than minimum required for installation. POE oil in compressor is extremely susceptible to moisture absorption. Always keep ends of tubing sealed during installation. If ANY refrigerant tubing is buried, provide 6–in.
5. Repeat this procedure as indicated in Fig. 9. System will then contain minimal amounts of contaminants and water vapor. FINAL TUBING CHECK IMPORTANT: Check to be certain factory tubing on both indoor and outdoor unit has not shifted during shipment.
O/ W2 W/W1 Y1 / W 2 G R THERMIDIST A T CONTROL MODEL RH V ARIABLE-SPEED CONDENSING FURNACE TW O-SPEED AIR CONDITIONER W/W1 G Y/ Y2 C Y2 R Y1 C DHUM HUM B S1 S2 W2 R C HEA T ST AGE 1 COOL ST A GE 1 COO.
COOL ST AGE 1 FA N HEA T ST AGE 1 COOL ST AGE 2 N/A 24 V A C HOT R W/W1 Y/Y2 O/W2 Y1/W2 G 24 V A C COMM N/A OUTDOOR SENSOR CONNECTION C B S1 S2 C Y2 C PROGRAMMABLE THERMOST A T MODEL 2S SINGLE-ST AGE .
required. The LCC for standard PSC blower products consists of a standard humidistat which opens contacts on humidity rise and a pilot duty relay with 24v coil. NOTE: If an LCC is desired, low-speed airflow must be main- tained so that a minimum of 300 CFM/ton can be supplied during high speed LCC operation.
A01222 LEGEND 24 VOL T F ACTORY WIRING 24 VOL T FIELD WIRING FIELD SPLICE CONNECTION RELA Y SPDT , PILOT DUTY 24-V COIL (HN61KK324) OR EQUIV ALENT HUMIDIST A T , OPENS ON HUMIDITY RISE (HL38MG026) AIRFLOW SELECTOR R1 H AFS WIRING DIAGRAM NOTES: 1. WIRING MUST CONFORM TO NEC OR LOCAL CODES.
Step 10—Start-Up To prevent compressor damage or personal injury, observe the following: • Do not overcharge system with refrigerant. • Do not operate unit in a vacuum or at negative pressure.
Step 11—Check Charge Service valve gage ports are not equipped with Schrader valves. To prevent personal injury, make sure gage manifold is connected to the valve gage ports before moving valves off fully back seated position. Wear safety glasses and gloves when handling refrigerant.
FACTORY DEFAULTS Factory defaults have been provided in the event of failure of outdoor air thermistor, coil thermistor, and/or furnace interface jumper. ONE MINUTE SPEED CHANGE TIME DELAY When compressor changes speeds from high to low or low to high, there is a 1-minute time delay before compressor restarts.
Compressor Control Contactors Low and high capacity contactor coils are 24 volts. The electronic control board controls the operation of the low speed (C-L) and the high speed (C-H) contactors. TEMPERATURE THERMISTORS Thermistors are electronic devices which sense temperature.
Fig. 15—Wiring Diagram—024, 036, 048 A01513 CONNECTION DIAGRAM OCT -t ° LPS HPS OAT -t ° LO HI TO INDOO R UN IT RED CCH FA N C A P YEL RED BRN OFM BL K BL U/ PNK BLU/ PNK YEL / PNK YEL / PNK BRN.
Fig. 16—Wiring Diagram—037 A01439 CONNECTION DIAGRAM OCT -t ° LPS HPS OAT -t ° LO HI TO INDOOR UNIT CCH RED BRN BLU/ PN K BLU/ PN K YEL/ P NK YEL/PNK BRN BRN BLK BLK RED BLU CH 11 21 23 23 YEL B.
→ Fig. 17—Wiring Diagram—060 A02212 CONNECTION DIAGRA M OCT -t ∞ LPS HPS OAT -t ∞ LO HI T O IN DO O R U NIT RED CCH FA N C A P RED BRN OFM BL K BL U/ PNK BLU / PN K YEL / P NK YEL / PN K BRN.
An important point after buying a device Carrier 38TDB (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 38TDB 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 38TDB - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Carrier 38TDB you will learn all the available features of the product, as well as information on its operation. The information that you get Carrier 38TDB will certainly help you make a decision on the purchase.
If you already are a holder of Carrier 38TDB, 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 38TDB.
However, one of the most important roles played by the user manual is to help in solving problems with Carrier 38TDB. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Carrier 38TDB 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
