CENTRAL SPLIT AIR CONDITIONER Installation Manual HIGH EFFICENCY CONDENSING UNIT Models: • YH1824GHFD18RT2 • YH3036GHFD18RT2 • YH4248GHFD18RT2 • YH4860GHFD18RT2 - R-410A REFRIGERANT - 208/230 V, 1 Phase, 60Hz - 18 SEER IMPORTANT NOTICE: Thank you very much for purchasing this Air Conditioner. Please read this manual carefully before installing or operating your new air conditioning system. Be sure to save this manual for future reference.
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Contents Safety Precautions ..........................................................................................................................................1 Diagram of Refrigerant Cycle & Wiring .........................................................................................................3 Refrigerant Flow Diagram ....................................................................................................................3 Electrical Wiring Diagram ..............................
Safety Precautions 1. 2. This air conditioner uses new refrigerant HFC (R410A). Since the max. working pressure is 550 psig (3.8MPa) [R22:450 psig (R22:3.1MPa)], some of the piping and installation and service tools are special. 3. This air conditioner uses the following power supply: ~208/230V, 60Hz. 4. The outdoor unit must be installed with an indoor unit equipped with TXV, and ensure that the TXV can be opened to the maximum angle while running heating mode. 5.
Safety Precautions ·Be sure to cut off the main power supply before the installation of indoor electronic PCB or wiring. Otherwise, there is a risk of electric shock. ·The device should be compliant with all state provisions for installation wiring. ·The outdoor unit installation location should be compliant to all safety principles, avoiding locations susceptible to people or other small animals coming into contact with electrical components.
Diagram of Refrigerant Cycle & Wiring Refrigerant Flow Diagram INDOOR UNIT OUTDOOR UNIT Gas piping P Pressure sensor Accumulator Wide service valve Compressor L Low pressure switch P High pressure switch Heat exchanger Heat exchanger 4-way valve Check valve Liquid piping Service valve EEV Note: High pressure switch and low pressure switch are only valid for 48K/60K models.
Installation Instructions Transportation and Handling Before Installation Transport the product as close to the installation location as practical prior to unpacking. ·Recommended Transportation Method When handling the unit, ensure a steady balance of the unit, checking safety and lifting it up smoothly. (1) Do not remove any packing materials. (2) Hang the unit under packing condition with two ropes, as shown in the Figure below.
Installation Instructions Drainage Elbow and Drain Hose Installation Install Drainage Elbow and Drain Hose ·The condensate water may drain from the outdoor unit when the unit operates in heating mode. In order to avoid disturbing neighbors and to protect the environment, it is necessary to install a drainage elbow and a drain hose to properly drain out and route the condensate water away. ·Handle the drainage work before the indoor unit and outdoor unit are connected.
Installation Instructions Refrigerant Piping 1. Piping Requirement Model Outer Diameter of Pipe [ in. (mm)] Gas Liquid 24K 5/8 (15.88) 3/8 (9.52) 36K 3/4 (19.05) 3/8 (9.52) 48K/60K 7/8 (22.22) 3/8 (9.52) The shorter the refrigerant piping is, the better the performance will be. Thus the connecting pipe should be as short as possible. Indoor unit Height difference H Pipe length L Outdoor unit Add. Max. Height Refrigerant difference [exceed 25ft (H) 7.6m] Model Max.
Installation Instructions ！ When installing piping through the wall, secure a cap at the end of the pipe. Incorrect Correct Hole 危 C A U T I O险 N Do not place the pipe directly on the ground. Correct Incorrect Correct Incorrect Rain water can enter. Hole Attach a cap or vinyl tape. Attach a cap or vinyl tape. Attach a cap or vinyl bag with rubber band. 3.Preparation of Refrigerant Piping (1) Pipe Cutting Cut the copper pipe properly using pipe cutter.
Installation Instructions 6. Vacuum Pumping and Charging Refrigerant ·Vacuum Pumping (1) Remove the service port cap of the stop valve on the gas pipe side of the outdoor unit. (2) Connect the manifold gauge and vacuum pump to the service port of the stop valve on the gas pipe side of the outdoor unit. (3) Run the vacuum pump. (Let it work for at least 15 minutes.) (4) Check the vacuum with the gauge manifold valve, then close the gauge manifold valve and stop the vacuum pump.
Installation Instructions Wiring ！ WARNING ·Turn OFF the main power switch to the indoor unit and the outdoor unit, and wait for at least 3 minutes before electrical wiring work or a periodical check is performed. ·Check to ensure that the indoor fan and the outdoor fan have stopped, before electrical wiring work or a periodical check is performed. ·Protect the wires, electrical parts, etc. from rats or other small animals.
Installation Instructions Wiring steps: 24K/36K BTU (1) Electrical Box Cover Removal Unscrew the mounting screws to remove the electric box cover. (2) Fasten the power supply cable and the transmitting cable to the conduit holder using the lock nut. (3) Connect the power supply cable and the transmitting cable to the terminal. (4) Fasten the power supply cable and the connection cable using the cable clamp. (5) Be sure to seal all holes when applying the putty. Arrange the cables side-by-side, flat.
Installation Instructions Electrical Data ELB Model (Capacity) Power Supply Power Source Transmitting Cable Size Rated Current Nominal Sensitive Cable Size Current (mA) (A) Circuit Breaker (A) 24K 208/230V/1Ph/60Hz 25 30 3×12AWG 5×16AWG 25 36K 208/230V/1Ph/60Hz 35 30 3×10AWG 5×16AWG 35 48K/60K 208/230V/1Ph/60Hz 50 30 3×8AWG 5×16AWG 50 Max. Running Current (A): REFER TO NAMEPLATE Note： (1) Follow local codes and regulations when selecting field wires.
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The design and specifications of this product are subject to change without prior notice as development continues. Consult with the sales agency or manufacturer for details. Refer to the equipment nameplate for all other applicable specifications. is a registered trademark of Parker Davis HVAC International, Inc. Parker Davis HVAC International, Inc. 3250 NW 107 Avenue, Doral, FL 33172 - USA Tel : (305) 513-4488 Fax : (305) 513-4499 E-mail : info@pdhvac.com Website : www.pdhvac.
