Pioneer WYT-20 Series Installation & User Manual

Ductless mini split system air conditioner / heat pump 9,000-36,000 btu/hr systems

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DUCTLESS MINI SPLIT SYSTEM AIR CONDITIONER / HEAT PUMP

WYT-20 Inverter Series

For 9,000-36,000 BTU/hr Systems

Diamante Pro (R-454B) - WT Indoor and YN Outdoor

Installation &

User's Manual

IMPORTANT NOTICE:

Please read this manual carefully before installing

or operating your new air conditioning system.

Be sure to save this manual for future reference.

REV250327

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Summary of Contents for Pioneer WYT-20 Series

Page 1 DUCTLESS MINI SPLIT SYSTEM AIR CONDITIONER / HEAT PUMP WYT-20 Inverter Series For 9,000-36,000 BTU/hr Systems Diamante Pro (R-454B) - WT Indoor and YN Outdoor Installation & User’s Manual IMPORTANT NOTICE: Please read this manual carefully before installing or operating your new air conditioning system. Be sure to save this manual for future reference.
Page 2 Table of Contents Installation Manual Safety Precautions......1 System Components......2 Included Accessories....... Indoor Unit Overview....... Operating Instructions....Remote Buttons Overview........Remote Controller LED Screen And Icons..Handling the Remote Controller......Controlling the System’s Airflow......5. Indoor Unit Mode Settings........Extra Options and Settings........
Page 3 8 Outdoor Unit Installation....Mounting Instructions..............Outdoor Unit Installation Location Selection....Electrical Wiring of the Outdoor Unit........Connection of Refrigerant Piping.......... Evacuating the Refrigerant Circuit........Leak Check/Test Run..Electrical and Gas Leak Check....Test Run..............T Troubleshooting......A Appendix............... Anchoring the Outdoor Unit Guide Guidelines for Drilling the Wall Hole ......
Page 4 Safety Precautions Read and Understand All Safety Precautions Prior to Installation Improper installation due to negligence of instructions may result in death, property damage, or serious 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.
Page 5 WARNING 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.
Page 6 System Components High Wall-Mounted Air Conditioner: The system is made up of two units connected together via insulated copper pipes and an electrical communication cable. The indoor unit is mounted onto one of the walls in the room that is to be conditioned. The outdoor unit is installed on the ground outside or on the wall of the dwelling using suitable mounting brackets.
Page 7 1/4” Note: This is a general list of package contents. There may be a slight variance in included items depending on the model. Pioneer reserves the right to modify the included components for product improvement without notice. Page 7 ...
Page 8 Indoor Unit Overview Front Panel Display Description LED Icon Symbol POWER Indicates that the unit is currently powered on SLEEP Indicates that the system is currently in SLEEP mode Temp. Display Displays the current set temperature or any error codes TIMER Indicates that the TIMER function has been set Indicates that the fan is currently on and running...
Page 9 Operating Instructions Remote Buttons Overview Button Description Turns the air conditioner on or oﬀ Increases set temperature, set timing, or navigates the functional menu Decreases set temperature, set timing, or navigates the functional menu Selects the mode of operation (Auto, MODE Cool, Dry, Fan, and Heat modes) Activates/deactivates the ECO feature...
Page 10 Operating Instructions Remote Controller LED Screen and Icons Icon Description Icon Description Temperature Indicator Turbo Mode Fan Speed (Auto or Fixed) Auto Mode Timer Active Indicator Signal Transmit Indicator Cooling Mode ECO Mode Self-Clean Function Child Lock Indicator Dry Mode Sleep Function Fan Only Mode 8°C (46°F) Heating Function...
Page 11 Operating Instructions Replacement of Batteries Remove the battery cover from the rear of the remote controller, by sliding it downward in the direction of the arrow as depicted below. Install batteries according to the depicted directions (+ and -) as shown on the remote controlller. The cover then slides back into place. Use 2x AAA batteries.
Page 12 Operating Instructions Regarding the Airflow of the Indoor Unit Filter The air that is pulled in by the fan (the “return air”) enters the grille and is passed through the filter. It is then Heat cooled/dehumidified/heated through the heat exchanger. The direction of the air output is manipulated up and down by the motorized louver, and left to right via manually controlled vertical deflectors.
Page 13 Operating Instructions COOLING Mode Cooling mode allows the heat pump to cool the room while also reducing the humidity of the air in the room. To put the system into cooling mode, press the button until the symbol appears on the remote’s display. buttons can then be used to set a temperature lower than that of the room.
Page 14 Operating Instructions DRY Mode Dry mode is a limited function that can rapidly reduce the humidity/moisture of the room. To put the system into dry mode, press the button until the symbol appears on the remote’s display. An automatic preset of this mode is then activated. FAN-ONLY Mode Fan-only mode is used to set the system to use only air ventilation and no heating or cooling.
Page 15 Operating Instructions Turning the Display On or Oﬀ The LED display on the front panel of the system can be turned on or oﬀ as desired. To do so, press the button in order to switch oﬀ the LED display on the front panel. This button can be pressed again to turn the LED display back on again.
Page 16 Operating Instructions Energy Saver (ECO) Option In this mode, the appliance will automatically manage its operation in order to save energy. To turn the ECO feature on, press the button on the remote, and the icon will appear. The system is now running in ECO, and the process can be repeated to turn it oﬀ.
Page 17 Operating Instructions Using the Timer - TIMER ON The TIMER feature allows you to set a time delay for the system to turn itself on or oﬀ. To set a time delay for the system to turn itself on in X amount of hours: 1.
Page 18 Operating Instructions 46°F Freeze Protection Function This feature is meant to be used to prevent freezing while the user is away from home. When turned on, it sets the system to keep a temperature of 46°F. If the unit is in standby, then the setting will automatically start the heating mode when the room temperature is equal to or lower than 46°F.
Page 19 Operating Instructions MEMORY Feature The Memory feature enables the user to store their favorite setting and reconfigure the system to that same setting with the press of a single button. Each mode of HEAT/COOL/FAN/DRY can store a unique setting. To use this feature, enter the desired mode and set the system to your preferred configuration and press and hold the button for 3 seconds to store the...
Page 20 Operating Instructions An Important Note Regarding Operating Temperatures The system is designed to run within a certain range of temperatures, which are listed below. There are built-in protections with the system that may stop the appliance when the ambient temperatures goes outside of these ranges. Inverter Air Conditioner Operating COOLING Mode...
Page 21 Maintenance of the Air Conditioner Periodic Maintenance Is Essential For The System! Maintaining the air conditioner will ensure that is stays eﬀicient. Before carrying out any sort of maintenance, always ensure that the power supply to the system is turned oﬀ for >5 minutes. Wear safety gloves when working on the equipment, due to sharp aluminum fin edges of the coil.
Page 22 Considerations for A2L Refrigerants Safety Information for A2L Refrigerants Because your system contains R-454B refrigerant, the following notices should be read and followed. It must be noted that venting any type of refrigerant into the atmosphere is always illegal and is punishable under federal and local regulations.
Page 23 Considerations for A2L Refrigerants Servicing Information for A2L Refrigerants The appliance must be stored in a manner Area Ventilation: Ensure the area is free ▪ ▪ that prevents mechanical damage. from flammable materials and that conditions Any work procedure aﬀecting safety are controlled to maintain a safe working ▪...
Page 24 Considerations for A2L Refrigerants Ventilated Area: Ensure that refrigeration piping and ▪ ◦ Ensure that work is conducted either in an components are installed in locations where open area or in a space with adequate they are not exposed to substances that could ventilation before breaking into the system cause corrosion.
Page 25 Considerations for A2L Refrigerants Cabling: Ensure that cabling is not exposed to ◦ Oxygen-Free Nitrogen (OFN) must be ▪ wear, corrosion, excessive pressure, vibration, purged through the system before and sharp edges, or other adverse environmental during brazing. factors. Consider the long-term eﬀects of aging Removal and Evacuation: When ▪...
Page 26 Considerations for A2L Refrigerants Decomissioning Information for A2L Refrigerants ◦ Decommissioning: Before starting F. Cylinder Positioning: Ensure the decommissioning, the technician must be recovery cylinder is placed on a scale before fully familiar with the equipment and its starting the refrigerant recovery process. components.
Page 27 Considerations for A2L Refrigerants Recovery Information for A2L Refrigerants Recovery Procedure: When removing refrigerant ◦ Before using the recovery machine: from a system for servicing or decommissioning, the Verify that it is in proper working order following best practices must be observed to ensure and has been properly maintained.
Page 28 Considerations for A2L Refrigerants WARNING USAGE STATEMENT ◦ Do not use any unauthorized methods to accelerate ◦ Before unloading and opening the container, use a the defrosting process or for cleaning. Follow only flammable gas detector to check for potential leaks. the manufacturer's recommended procedures.
Page 29 Considerations for A2L Refrigerants Preparation for Working on Systems With A2L Refrigerants Wear Don’t Use Ventilation No Flammable Protective Electronics Necessary Sources Gear Near System Refrigerant Leakage Detector Determining Installation Location A handheld leakage detector can It is vital that the systems are installed in aid with tracing and isolating suitable locations based on the guidelines refrigerant leaks.
Page 30 Considerations for A2L Refrigerants (If Applicable) Charging Protocol for A2L Refrigerants Important Considerations: Minimum Floor Area Requirement: The required minimum floor area A for an 1. The air conditioner must be installed and appliance with a refrigerant charge M (kg) serviced by qualified personnel.
Page 31 Considerations for A2L Refrigerants Where Category = R454-B, LFL = 0.303 kg/m The standard factory refrigerant charge amount as Table GG.2 - Minimum Room Area (m well as the maximum allowable charge are as follows: Model R454-B Refrigerant R454-B Refrigerant (BTU) (Standard Charge) (Maximum Charge)
Page 32 Indoor Unit Installation Instructions Installation Diagram Before proceeding, it is important to consider the following height and length restrictions: Outdoor Unit Indoor Unit For Systems of 9K and 12K BTU: • Follow the given constraints in the Pipe length Pipe length figures to the left.
Page 33 Indoor Unit Installation Instructions Indoor Unit Installation Location Selection Follow the below best practices for selecting an optimal space for installation the indoor unit: DO NOT install the unit on a wall that is subject to vibrations. ▪ DO NOT install the system near sources of heat, steam, or flammable gases. ▪...
Page 34 Indoor Unit Installation Instructions Installation of the Mounting Plate 1. Dislodge the mounting plate from the rear of the indoor unit and place the mounting plate against the wall where the system will hang that fulfills the constraints on page 33. Use a level to ensure that the plate is horizontally and vertically level.
Page 35 Indoor Unit Installation Instructions Electrical Connections - Indoor Unit All systems will include a wiring diagram aﬀixed to the Front Panel indoor unit. See Page 38 for more details. 1. Lift up the front panel of the indoor unit. Wiring Diagram 2.
Page 36 Indoor Unit Installation Instructions Preparing the Refrigerant Piping of the Indoor Unit The piping “pigtails” pre-attached to the indoor unit can be run in 3 diﬀerent ways as shown in the illustration. Decide which type of configuration is most suitable before continuing. By default it is routed for a left side exit as shown in #1.
Page 37 Indoor Unit Installation Instructions Connecting the Drain Hose By default, the drain hose is attached to the left-hand side of unit (”left” when facing the back of the unit). However, it can also be attached to the right-hand side. 1. To ensure proper drainage, attach the drain hose on the same side that your refrigerant piping exits the unit.
Page 38 Front Panel Wiring Diagram Serial Number Cable Wire Specifications (For Uncommon Configurations) 9K/12K (115V) 9K/12K (230V) 30/36K Pioneer WYT-20 Series Mini Split Sectional Area (AWG) N(L2) L(L1) Power Supply Cable 12 AWG 14 AWG...
Page 39 Indoor Unit Installation Instructions Connecting the Refrigerant Piping to the Indoor Unit Apply leak-prevention Once the copper piping kit coil is unwound, gels or gaskets to all refer to the below instructions to proceed: mating surfaces 1. Bring the ends of both the copper line and the indoor unit line together.
Page 40 Outdoor Unit Installation Instructions Mounting the Outdoor Unit to the Selected Location The outdoor unit should be installed either on a pad or on a solid wall using suitable mounting brackets and fastened securely. Follow the procedure below before connecting any pipes or cables: Decide what the best position on the wall or on the ground is, and ▪...
Page 41 Outdoor Unit Installation Instructions Outdoor Unit Installation Location Selection Follow the below best practices for selecting an optimal space for installation the indoor unit: • DO NOT install the unit near sources of heat, steam, or flammable gases. • DO NOT install the system in areas prone to extreme winds or dust. •...
Page 42 Outdoor Unit Installation Instructions BEFORE PERFORMING WARNING ANY ELECTRICAL WORK, BEFORE PERFORMING ANY ELECTRICAL OR READ THESE REGULATIONS WIRING WORK, TURN OFF THE MAIN POWER 1. All wiring must comply with local and national SOURCE, OR SOURCES, TO THE SYSTEM. electrical codes, and must be installed by a 1.
Page 43 Outdoor Unit Installation Instructions Power/Signal Electrical Wiring to the Outdoor Unit On the outdoor unit, the wiring diagram is located in the inner side of the handle cover. The outside unit’s terminal block is protected by an electrical wiring cover on the side of the unit. A comprehensive wiring diagram is printed on the inside of the wiring cover.
Page 44 Outdoor Unit Installation Instructions Connection of the Refrigerant Piping 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 16 ft. Factory precharge is suﬀicient for supporting up to 25 ft of connected lineset.
Page 45 Outdoor Unit Installation Instructions Step 3: Flare pipe ends PIPING EXTENSION BEYOND FLARE FORM Proper flaring is essential to achieve an airtight Outer Diameter of A (mm) seal. Pipe (mm) Min. Max. Ø 6.35 (Ø 1/4”) 0.7 (0.03”) 1.3 (0.05”) 1.
Page 46 Outdoor Unit Installation Instructions Instructions for Connecting Piping MINIMUM BEND RADIUS to Outdoor Unit When bending connective refrigerant piping, the minimum bending radius is 10 cm (4”). 1. Unscrew the cover from the packed valve on the side of the outdoor unit. Valve Cover Radius ≥...
Page 47 Outdoor Unit Installation Instructions Air Evacuation and Bleeding the Circuit The air and/or humidity left inside the refrigeration circuit can contaminate the refrigerant and cause abnormal spikes in pressure, leading to eventual compressor malfunction. Therefore, after having connected the indoor and outdoor units to create a closed system, it is necessary to bleed the air and humidity out of the circuit through the use of a vacuum pump.
Page 48 Outdoor Unit Installation Instructions Evacuation Instructions (Cont’d) Do not open 6. Turn on the vacuum pump to evacuate the system. either of these valves until 7. Run the vacuum for at least 15 minutes, or until the Flare Nut evacuation steps Compound Meter reads -76cmHG (-100 kPa or -30 are completed and system is...
Page 49 Electrical/Gas Leak Check and Test Run ELECTRICAL SAFETY CHECKS WARNING – RISK OF ELECTRIC SHOCK After installation, confirm that all electrical wiring is installed in accordance with local and national ALL WIRING MUST COMPLY WITH regulations, and according to the Installation LOCAL AND NATIONAL ELECTRICAL Manual.
Page 50 Electrical/Gas Leak Check and Test Run Test Run BEFORE TEST RUN TEST RUN INSTRUCTIONS Only perform a test run after the following The following test run should be performed steps have been completed: for 30 minutes: Electrical Safety Checks 1. Connect power to the unit. ...
Page 51 Troubleshooting MALFUNCTION POSSIBLE CAUSES There is a power failure/plug pulled out or tripped/wrong breaker (wrong wiring) The indoor/outdoor unit fan motor was damaged There is a faulty compressor or thermomagnetic circuit breaker If the appliance There is a faulty protective device or fuses does not operate The electrical connections are loose or respond...
Page 52 Troubleshooting Solutions to Commmon Issues and Scenarios • Issue: The Indoor Air Handler Does Not Turn On. ▪ Solution: Try the manual emergency button on the indoor unit, to rule out problems with the remote.* ▪ Solution: Verify that the wire order is equal between indoor and outdoor units .
Page 53 Appendix Anchoring the Outdoor Unit The outdoor unit can be anchored to the ground or to wall-mounted brackets. The following is a list of diﬀerent outdoor unit sizes and the distance between their mounting feet. Prepare the installation base of the unit according to the dimensions found below: Model YN009ALSI20RPF (9000 BTU - 115V)
Page 54 Appendix Guidelines for Drilling the Wall Hole Below are the suggested locations for the wall hole for systems between 9,000 - 36,000 BTU. Both left side/right side exits are considered with 2-1/2” hole. Confirm holes are proper by corner tracing. 31-7/8 in 16 in 5-3/4 in...
Page 55 Appendix Guidelines for Drilling the Wall Hole (continued) 46-7/8 in 20-3/4 in 8-7/8 in 21-1/4 in 7-1/4 in 1-7/8 in (For 24K, 30K, 36K Systems) Left Side Exit Right Side Exit All Distances in Inches Simplified Wiring Diagram (115V and 230V) Page 55 ...
Page 56 Appendix Indoor Air Handler Control Board Wiring Diagrams INDOOR UNIT: WT009ALSI20HLF, WT009GLSI20HLF, WT012ALSI20HLF, WT012GLSI20HLF WT018GLSI20HLF INFRARED SENSE CN14B HEATER (OPTIONAL) (OPTIONAL) PTC-L PTC-N AUDIO (OPTIONAL) TRANSFORMER WIFI CN16 (OPTIONAL ) (OPTIONAL) PEOPLE FEEL CN14 (OPTIONAL) UV LIGHT (OPTIONAL) HUMIDITY SENSOR CN19 CN27 (OPTIONAL)
Page 57 Appendix Outdoor Condensing Unit Control Board Wiring Diagrams OUTDOOR UNIT: YN009ALSI20RPF, YN012ALSI20RPF GN(GNYE) YE(BK) (OPTIONAL) INDOOR P3(S) (BU) REACTOR CAPACITOR P13(L1) WH(BU) UNIT (BU) P14(L2) BK(BN) WH(BU) P2(AC-N) (OPTIONAL) BK(BN) COMP POWER P1(AC-L) GNYE SUPPLY GN(GNYE) GN(GNYE) PO(GND)/POO GN(GNYE) OUTDOOR ENVIRONMENT TEMP. SENSOR P01(GND) (OPTIONAL) CN2/CN1...
Page 58 Appendix For Systems with Additional Leakage Sensor (if Applicable) Condition Error Code Refrigerant Leak Detected Display “Hd” Communication Error with Refrigerant Sensor Display “Fd” Page 58  ...
Page 59 Appendix For Systems with Additional Leakage Sensor (if Applicable) Alternative Board Diagram for Systems with a Leakage Detection Sensor: If the air handler is configured with a refrigerant leakage detection sensor from factory, or is configured for one to be added later on in the field such as during installation, follow the alternative control board wiring diagram depicted below: Page 59 ...
Page 60 Appendix Product Disposal Guidelines 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. All refrigerant and oil must be removed prior to disposal as outlined within this manual. When disposing of this appliance, you have the following options: •...
Page 61 Appendix If Refrigerant Has Been Added to the System During Install (For the Installer) Please fill in the following: The factory refrigerant charge of the product (located on the outdoor unit nameplate). The additional refrigerant charged into product. 1+2) The total refrigerant charge. kg (ozs) kg (ozs) kg (ozs)
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