PUMP REV111521 - Ductless Mini Split System Air Conditioner / Heat - WYT-19 Inverter Series - Installation & User’s Manual

Oct 23, 2026

Ductless mini split system air conditioner/heat installation and user manual for 9,000–36,000 BTU/hr systems, covering safety precautions, installation guidance, and operating instructions. It explains warning and caution requirements for electrical work, refrigerant piping, tooling, mounting stability, wiring arrangement, and supervision around the unit. The manual provides structured sections for indoor and outdoor unit installation, routing refrigerant lines and drain line, signal cable preparation, timer and airflow control features, temperature notes, components, accessories, maintenance, troubleshooting, and an appendix with anchoring, wall-hole drilling, wiring diagram, and disposal guidelines.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages46

Reading Time1 h 56 min

AccessFree to download

Installation Manual

Safety Precautions

Components and Accessories

Indoor Unit Installation

Outdoor Unit Installation

Operating Instructions

Troubleshooting

Appendix

PUMP REV111521 DUCTLESS MINI SPLIT SYSTEM AIR CONDITIONER / HEAT WYT-19 Inverter Series For 9,000-36,000 BTU/hr Systems 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. Table of Contents Installation Manual 0 Safety Precautions........................... 4 7 Operating Instructions......... 9 1. Remote Buttons Overview.............................. 9 2. Remote Controller LED Screen And Icons.... 10 3. Handling the Remote Controller................... 11 4. Controlling the System’s Airflow.................... 12 5. Indoor Unit Mode Settings............................ 13 6. Extra Options and Settings............................. 15 7. Managing the Timer Features........................ 17 8. Other Features................................................ 18 9. Operating Temperature Notes....................... 20 1 Components........................ System 6 2 4 Indoor Unit Overview..................... 8 3 Accessories...................... Included 21 5 Maintenance Instructions............... 6 Indoor Unit Installation................. 22 1. Indoor Unit Installation Location Selection.................. 22 2. Pre-Mounting Instructions............................................. 23 3. Preparing the Refrigerant Piping................................... 26 4. Preparing the Drain Line............................................... 27 5. Preparing the Signal Cable............................................. 28 6. Routing the Copper Lines and Mounting the Unit....... 29 7 Outdoor Unit Installation.............. 30 1. Outdoor Unit Installation Location Selection............... 30 2. Mounting Instructions.................................................... 31 3. Electrical Wiring of the Outdoor Unit............................ 32 4. Connection of Refrigerant Piping.................................. 34 5. Evacuating the Lineset.................................................... 37 39 39 40 9 Troubleshooting.............................. 41 A Appendix......................................... 42 1. Anchoring the Outdoor Unit Guide...... 42 2. Guidelines for Drilling the Wall Hole.... 43 3. Simplified Wiring Diagram.................... 44 4. European Disposal Guidelines............... 45 Safety Precautions Read and Understand All 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. WARNING Do not power the system using an extension cable or with wiring smaller than the specified gauge. Do not share the electrical circuit with other appliances. Improper or insufficient power supply can cause undesirable operation, fire, or electrical shock. When connecting refrigerant piping, do not let any substances or gases other than the specified refrigerant enter the unit. The presence of other gases or substances will lower the unit’s capacity, and can cause abnormally high pressure in the refrigeration cycle. This can also cause explosion and injury, as well as permament equipment failure. Remember: No dust, humidity or airis allowed to enter. Do not allow children to play with or around the air conditioner. Children near the unit must be supervised at all times. 1. Installation must be performed by a licensed and trained technician. Defective installation can cause water leakage, electrical shock, or fire. The usage of proper tools is a requirement. 2. Installation must be performed according to the installation instructions. Improper installation can cause water leakage, undesired performance, electrical shock, or fire. (In North America, installation must be performed in accordance with

FAQs

Who is allowed to perform the installation and repairs?

Installation must be performed by a licensed and trained technician. For repairs or maintenance, contact a qualified and licensed HVAC technician.

What electrical safety rules does the manual emphasize?

Use an independent circuit and a dedicated breaker, follow local and national wiring standards, and use the specified cables. Ensure proper connections and wiring arrangement so covers close correctly.

What precautions must be followed when working with refrigerant piping?

Keep substances or gases other than the specified refrigerant out of the unit. Ensure no dust, humidity, or air enters the system, since contamination can reduce capacity and create high pressure or equipment failure.

Oct 23, 2026

Uploaded by Taylor Morgan