DUCTLESS MINI SPLIT SYSTEM AIR CONDITIONER / HEAT PUMP WAS / WYS Series WAS: Cooling Only Version WYS: Cooling and Heating Version Inverter+®and Inverter++® Models For 9,000-36,000 BTU/hr Systems WiFi Ready Installation Manual CS78421-548-754 IMPORTANT NOTICE: Please read this manual car efully before installing or operating your new air conditioning system. Be sure to save this manual for future reference.
Table of Contents Installation Manual 0 Safety Precautions........................... 4 1 Accessories........................................ 6 2 Indoor Unit Installation Summary.......... 8 3 Unit Components................................... 10 4 Indoor Unit Installation........ 11 1. Select installation location..........................11 2. Attach mounting plate to wall....................12 3. Drill wall hole for connective piping............12 4. Prepare refrigerant piping..................
6 Refrigerant Piping Connection........ 25 A. Note on Pipe Length................................................ 25 B. Connection Instructions –Refrigerant Piping............. 25 1. Cut pipe.............................................................. 25 2. Remove burrs...................................................... 26 3. Flare pipe ends.................................................... 26 4. Connect pipes..................................................... 27 MC MC 7 Air Evacuation........
Safety Precautions Read and Understand Safety Precautions Prior to Installation Improper installation due to negligence of instructions may result in serious damage or injury. The magnitude of potential damages or injuries is classified as either a WARNING or a CAUTION. This symbol indicates that ignoring the related instructions may cause death, or serious injury.
WARNING 6. For all electrical work, follow all local and national wiring standards, regulations, and especially this Installation Manual. You must use an independent circuit and a dedicated breaker to supply power. Do not connect other appliances to the same circuit. Insufficient electrical capacity or defects in electrical work can cause electrical shock or fire. 7. For all electrical work, use the specified cables.
1 Accessories The air conditioning system comes with the following accessories. Use all of the installation parts and accessories to install the air conditioner. Improper installation may cause the equipment to fail, or result in water leakage, electrical shock, or fire. Name Appearance Quantity Mounting plate 1 Clip anchor 5 Mounting plate fixing screw ST3.9 X 25 5 Remote controller 1 Fixing screw for remote controller holder ST2.
Shape Name Quantity SPLIT-TYPE ROOM AIR CONDITIONER Owner’s Manual Owner’s manual 1 CS78421-548-754 IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference. SPLIT-TYPE ROOM AIR CONDITIONER Installation Manual Installation manual 1 CS78421-548-754 IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit.
Installation Overview 2 Indoor Unit Installation Summary 1 2 Min. 10-15cm (4-6 in.) Min. 8-12cm (3-5 in) Min. 8-12cm (3-5 in) Optimally 2.0-2.
6 7 1 2 3 Ground USE DOUBLE (BACKUP) WRENCES Installation Overview 5 Connect Piping (Page 25) Connect Wiring (Page 17) Prepare Drain Hose (Page 14) 8 Wrap Piping & Cables together (Page 18) 9 STEP 8 Mount the Indoor Unit (Page 18) Page 9
3 Unit Components Installation Overview Wall Mounting Plate Front Panel Louver Drainage Pipe Functional Filter (On Front of Main Filter - Some Units) Signal Cable Refrigerant Piping Remote Control Remote Control Holder (Some Units) Outdoor Unit Power Cable (Power Panel Housing) Fig. 2.1 NOTE ON ILLUSTRATIONS Illustrations in this manual are strictly for explanatory purposes. The actual shape of your indoor unit may be slightly different.
Indoor Unit Installation 4 Indoor Unit Installation DO NOT install unit in the following locations: Near any sources of heat, steam, or combustible gas PRIOR TO INSTALLATION Near flammable items such as curtains or Before installing the indoor unit, refer to the clothing label on the product box to make sure that the Near any obstacle that might block air system set is a matching set for capacity, voltage, circulation and efficiency (indoor and outdoor).
Refer to the following diagram to verify these recommended distances from walls and ceiling: 10-15cm (4-6 in) or more Indoor Unit Installation 8-12cm (3-5 in) or more 8-12cm (3-5in) or more 2.0 m (80 in) or more 2.6 m (100 in) or less Fig. 3.1 Step 2: Attach mounting plate to the wall The mounting plate is the device on top of which the indoor unit will be mounted. 1. Remove the screw that attaches the mounting plate to the back of the indoor unit. 2.
Indoor W all Outdoor 37mm (1-1/2in) 348mm (13-3/4 in) 179mm (7-1/16in) 101mm (4 in) 290mm (11-3/8 in) 49mm (1-15/16 in) 49mm (1-15/16in) Right rear wall hole 65mm (2-1/2in) 232mm (9-1/8in) 128mm (5-1/16in) 43mm (1-3/4in) Left rear wall hole 65mm (2-1/2in) 43mm (1-3/4in) Indoor unit outline Right rear wall hole 65mm (2-1/2in) 802mm (31-5/8in) 517mm (20-3/8in) 144mm (5-5/8in) 138mm (5.
Step 4: Prepare refrigerant piping The refrigerant piping is inside an insulating sleeve attached to the back of the unit. You must prepare the piping before passing it through the hole in the wall. Refer to the “Refrigerant Piping Connection” section of this manual for detailed instructions on pipe flaring and flare torque requirements, technique, etc. Indoor Unit Installation 1.
NOTE ON DRAIN HOSE PLACEMENT DUAL DRAIN HOLE LOCATIONS EXIST The indoor unit has 2 drain connections on left and right sides. Either one can be utilized. One side will have a hose connected, while the other is plugged. CORRECT Make sure there are no kinks, dents or siphons in the drain hose, to ensure proper drainage. Indoor Unit Installation Step 5: Connect drain hose By default, the drain hose is attached to the lefthand side of unit (”left” when facing the back of the unit).
BEFORE PERFORMING ELECTRICAL WORK, READ THESE REGULATIONS 1. All wiring must comply with local and national electrical codes, and must be installed by a licensed electrician. 2. All electrical connections must be made according to the Electrical Connection Diagram located on the panels of the indoor and outdoor units. 3. If there is a serious safety issue with the power supply, stop work immediately.
Step 6: Connect signal cable The signal cable enables communication between the indoor and outdoor units. You must first choose the right cable size before preparing it for connection. Cable Types • Outdoor Power Cable: H07RN-F • Signal Cable: H07RN-F North America Appliance Amps (A) 10 13 15 20 30 AWG 18 16 14 12 10 1. Prepare the cable for connection: a. Using wire strippers, strip the rubber jacket from both ends of signal cable to reveal about 40mm (1.5 in) of the wires inside. b.
Indoor Unit Installation 6. Feed the signal wire through this slot, from DO NOT INTERTWINE SIGNAL CABLE WITH the back of the unit to area near terminals. OTHER WIRES 7. Facing the front of the unit, attach 4 leads of While bundling these items together, do not the signal wire to the 4 terminal positions intertwine or cross the signal cable with any marked as 1-2-3-G (Ground). Note the color other wiring. of the wire used for each terminal, to connect 2.
If refrigerant piping is already embedded in the wall, do the following: 1. Hook the top of the indoor unit onto the upper hook of the mounting plate. 2. Use a bracket or wedge to prop up the unit, giving you enough room to connect the refrigerant piping, signal cable, and drain hose. Refer to Fig. 3.11 for an example. 3. Connect drain hose and refrigerant piping 4. 5. 6. Fig. 3.11 UNIT IS ADJUSTABLE Keep in mind that the hooks on the mounting plate are smaller than the holes on the back of the unit.
5 Outdoor Unit Installation 6 0 cm ( 2 4 i n ) a b o ve Outdoor Unit Installation Installation Instructions – Outdoor Unit Step 1: Select installation location Before installing the outdoor unit, you must choose an appropriate location. The following are standards that will help you choose an appropriate location for the unit. Proper installation locations meet the following standards: Meets all spatial requirements shown in “Installation Space Requirements” (Fig. 4.
SPECIAL CONSIDERATIONS FOR EXTREME WEATHER If the unit is exposed to heavy wind: Install unit so that air outlet fan is at a 90° angle to the direction of the wind. If needed, build a barrier in front of the unit to protect it from extremely heavy winds. See Fig. 4.2 and Fig. 4.3 below. Strong wind Strong wind Wind baffle Base pan hole of outdoor unit Strong wind Fig. 4.
Step 3: Anchor the outdoor unit The outdoor unit can be anchored to the ground or to a wall-mounted bracket. W A UNIT MOUNTING DIMENSIONS B Air inlet D Outdoor Unit Dimensions (mm) W x H x D (mm) & (in) W Air outlet Fig. 4.5 A Mounting Dimensions Distance A (mm) & (in) Air inlet Distance B (mm) & (in) D Outdoor Unit Installation Air inlet 19 SEER Inverter + Models B The following is a list of different outdoor unit sizes and the distance between their mounting feet.
If you are installing the unit on a wall-mounting bracket, do the following: CAUTION BEFORE PERFORMING ANY ELECTRICAL WORK, READ THESE REGULATIONS 1. All wiring must comply with local and national electrical codes, and must be installed by a fully-licensed electrician. 2. All electrical connections must be made according to the Electrical Connection Diagram located on the side panels of the indoor and outdoor units. 1. Mark the position of bracket holes based on 3.
PAY ATTENTION TO MAKE GOOD CONTACT WARNING BEFORE PERFORMING ANY ELECTRICAL OR WIRING WORK, TURN OFF THE MAIN POWER TO THE SYSTEM. While crimping wires, make sure to make good electrical contact between the wire and terminal WARNING 1. Prepare the cable for connection: ALL WIRING MUST PERFORMED STRICTLY IN ACCORDANCE WITH THE WIRING DIRGRAM LOCATED INSIDE THE OUTDOOR UNIT S’ WIRING TERMINAL BLOCK COVER. USE THE RIGHT CABLE • Outdoor Power Cable: H07RN-F 2.
6 Refrigerant Piping Connection The length of refrigerant piping will affect the performance and energy efficiency of the unit. Nominal efficiency is tested on units with a pipe length of 5 meters (16 ft). Refer to the table below for specifications on the maximum length and drop height of piping. Maximum Length and Drop Height of Refrigerant Piping per Unit Model Model R410A Inverter Split Air Conditioner Capacity (BTU/h) Max. Length (m) Max.
DO NOT DEFORM PIPE WHILE CUTTING Flare nut Be extra careful not to damage, kink, or deform the pipe while cutting. This will drastically reduce the efficiency and capacity of the unit and may cause internal damage. Copper pipe Step 2: Remove any burrs carefully. Burrs can affect the air-tight seal of refrigerant piping connection. They must be completely Fig. 5.3 removed. Follow steps below for proper deburring. 1. Hold the pipe at a downward angle to prevent 4.
6. Place flaring tool onto the form. 7. Turn the handle of the flaring tool clockwise until the pipe is fully flared. 8. Remove the flaring tool and flare form, then inspect the end of the pipe for cracks and successful, even flaring. Step 4: Connect pipes When connecting refrigerant pipes, be careful not to use excessive torque, or to deform the piping in any way. You should first connect the low-pressure pipe, then the high-pressure pipe.
Instructions for Connecting Piping to Outdoor Unit 1. Unscrew the cover from the packed valve on the side of the outdoor unit. (See Fig. 5.9) USE SPANNER TO GRAB THE BODY OF THE SERVICE VALVE Torque from tightening the flare nut can snap off other parts of valve. Valve cover Fig. 5.9 2. Remove protective caps from the valve ends. 3. Align flared pipe end with each valve, and tighten the flare nut as tightly as possible by hand. 4. Using a spanner, grab the body of the valve.
7 Air Evacuation BLUE (Low Pressure) Gauge RED (High Pressure) Gauge MC BLUE (Low Pressure) Side of Manifold Gauge MC RED (High Pressure) Side of Manifold Gauge Low Pressure Valve High Pressure Valve YELLOW (Common) Side of Manifold Gauge Preparations and Precautions BEFORE PERFORMING EVACUATION Check to make sure that both LIQUID Manifold Gauge Low pressure gauge High pressure gauge -76cmHg Low pressure valve Blue (low)hose LARGE DIA (GAS) Service Valve High pressure valve Yellow (middle) h
Copper Pipe from Indoor Unit 3. Open the BLUE (Low Pressure) valve of Manifold Gauge. Keep the RED (High Pressure) valve closed. Flare nut 4. Turn the vacuum pump ON to start evacuating the air from the line set and indoor unit circuits. Fig. 6.2 5. Run the vacuum pump for at least 15 minutes, or until the Low Pressure Gauge reads -76cmHG (-100 kPa or -30 In Hg). (Negative value) 6. Close the Blue (Low Pressure) valve of Manifold Gauge, then turn the vacuum pump OFF. Hexagonal Dust Cap 7.
Electrical and Gas Leak Checks Electrical Safety Checks After installation, confirm that all electrical wiring is installed in accordance with local and national regulations, and according to the Installation Manual. BEFORE TEST RUN DURING TEST RUN Check for Electrical Leakage During the Test Run, use an electroprobe and multimeter to perform a comprehensive electrical leakage test.
9 Test Run Before Test Run Only perform a test run after you have completed the following steps: • Electrical Safety Checks – Confirm that the unit’s electrical system is safe and operating properly • Gas Leak Checks – Check all flare nut connections and confirm that the system is not leaking • Confirm that the gas and liquid (high and low pressure) valves are fully open Test Run Instructions You should perform the Test Run for at least 30 minutes. 1. Connect power to the unit. 2.
DOUBLE-CHECK PIPE CONNECTIONS During operation, the pressure of the refrigerant circuit will increase. This may reveal leaks that were not present during your initial leak check. Take time during the Test Run to double-check that all refrigerant pipe connection points are leak free. Refer to the Gas Leak Check section for instructions. 5. After the Test Run is successfully completed, and you confirm that all checks points in “List of Checks to Perform” have PASSED, do the following: a.
European Disposal Guidelines 10 This appliance contains refrigerant and other potentially hazardous materials. When disposing of this appliance, the law requires special collection and treatment. Do not dispose of this product as household waste or unsorted municipal waste. When disposing of this appliance, you have the following options: • Dispose of the appliance at designated municipal electronic waste collection facility.
Indoor Unit Error Codes List ☆ 1 time ☆ ☆ 3 times ☆ ☆ short circuit ☆ short circuit ☆ ☆ ☆ 2 times short circuit ☆ 3 times short circuit ☆ circuit or short circuit ☆ ☆ ☆ 1 times ☆ ☆ 2 times ☆ ☆ 3 times ☆ ☆ ☆ ☆ ☆ ☆ ☆ ☆ ☆ P2 （ ） compressor shell top （ ） ☆（ ） *P3 1) heating n the outdoor temperature is ower than °C (-13F) or 1 the indoor unit error code P3. Low Ambient Protection.
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 107th Avenue, Doral, FL 33172, U.S.A. Tel : (305) 513-4488 Fax : (305) 513-4499 email : info@pd-hvac.com Website: www.pd-hvac.
