1. Bubuka
Thank you for choosing the Keystone 23,200 BTU Window-Wall Air Conditioner with Supplemental Heat and Dehumidifier. This manual provides essential information for the safe and efficient operation of your appliance. Please read it thoroughly before installation and use, and retain it for future reference.
2. Émbaran Kasalametan
Pitunjuk Kasalametan Penting:
- This appliance requires a special 230-volt/25-amp electrical outlet (NEMA 6-30P plug). Do not use with a standard 115V household outlet. Consult a qualified electrician if you are unsure about your electrical supply.
- Salawasna pegatkeun sambungan kakuatan saméméh meresihan atawa ngalayanan unit.
- Ulah ngajalankeun unit ku kabel kakuatan ruksak atawa colokan.
- Mastikeun grounding ditangtoskeun pikeun ngurangan résiko shock listrik.
- Jauhkeun bahan bungkusan tina jangkauan barudak.
- The supplemental heating mode is not intended as a primary heat source. Use it to support your main heating system when outdoor temperatures are between 23°F and 76°F.
3. Produk Langkungview
The Keystone KSTHW25B is a versatile air conditioning unit designed for both window and through-the-wall installation. It offers multiple functions to maintain indoor comfort.
Fitur konci:
- Kapasitas cooling: 23,200 BTU, suitable for rooms up to 1,500 sq. ft.
- Supplemental Heating: 16,000 BTU, for use when outdoor temperatures are between 23°F and 76°F.
- Dehumidification: Miceun nepi ka 5.7 pint kalembaban per jam.
- Fungsi kipas: Circulates air with multiple fan speeds.
- Smart Remote Control: Features a 'Follow Me' function for precise temperature sensing.
- Modeu Hemat Énergi: Includes 'Energy Saver' and 'Sleep' modes.
- Fleksibilitas instalasi: Designed for window or through-the-wall installation with a removable chassis.

Gambar 3.1: Hareupeun view of the Keystone KSTHW25B Air Conditioner.

Gambar 3.2: Leuwihview of the unit's 4-in-1 functionality.
4. Pamasangan
The KSTHW25B unit can be installed in a window or through an exterior wall. A window installation kit is included.
4.1 Sarat listrik
This unit requires a dedicated 230-volt, 25-amp circuit with a NEMA 6-30P plug. Ensure your electrical system can support these requirements before installation. Do not use extension cords or adapters.

Figure 4.1: Electrical connection details for the 230V/25A NEMA 6-30P plug.
4.2 Pamasangan Jandéla
The unit comes with an adjustable window kit. The minimum window height required for installation is 19.5 inches. Compatible window widths range from 31 to 42 inches.

Figure 4.2: Window installation with compatible width range.

Gambar 4.3: Kelample of window installation.
4.3 Through-the-Wall Installation
The unit features a removable chassis for through-the-wall installation. Refer to the detailed instructions provided in the separate installation guide for specific wall sleeve requirements and procedures.
5. Parentah Operasi
Your Keystone air conditioner can be operated using the control panel on the unit or the included smart remote control.
5.1 Jauh Jauh
The smart remote control features a 'Follow Me' function, which senses the temperature at its location and sends this data to the unit every 3 minutes for optimized comfort. This allows the unit to adjust its operation based on the temperature where you are, rather than just at the unit's location.

Figure 5.1: Smart remote control for convenient operation.
5.2 Modeu operasi
- Mode tiis: Nyayogikeun tiis pikeun rohangan. Atur suhu sareng kecepatan kipas sakumaha anu dipikahoyong.
- Heat Mode (Supplemental): Provides supplemental heating. This mode is effective when outdoor temperatures are between 23°F and 76°F. It is not designed to be a primary heat source during colder months.
- Modeu Dehumidifier: Reduces humidity in the room. The fan operates at a low speed in this mode.
- Modeu kipas: Circulates air without cooling or heating. Select desired fan speed (Low, Medium, High).
5.3 Energy-Saving Features
- Mode Hemat Énergi: The fan will cycle on and off with the compressor to reduce energy consumption.
- Modeu Bobo: Naékkeun suhu anu disetel laun-laun salami sababaraha jam pikeun ngahémat énergi sareng nyayogikeun kaayaan sare anu nyaman.
- Timer 24 Jam: Ngamungkinkeun anjeun pikeun ngaprogram unit pikeun hurung atanapi pareum sacara otomatis dina jangka waktu 24 jam.

Figure 5.2: Sleep mode for energy efficiency and comfort.
6. Pangropéa
Pangropéa rutin ngajamin kinerja optimal sareng umur panjang tina AC anjeun.
6.1 Filter hawa beberesih
The unit is equipped with a mesh air filter. A 'Filter Light Reminder' will illuminate to indicate when the filter needs cleaning. To clean:
- Pegatkeun sambungan kakuatan ka unit.
- Cabut panel hareup teras geser kaluar saringan hawa.
- Ngumbah saringan ku cai haneut, sabun. Bilas nepi ka tuntas.
- Ngidinan saringan nepi ka garing lengkep saméméh reinstalling.
- Reinstall the filter and front panel, then restore power.
6.2 beberesih umum
Ngusap bagian luar unit kalayan lemes, damp cloth. Do not use harsh chemicals or abrasive cleaners. Ensure the drainage area is clear of obstructions.
7. Cara ngungkulan
Sateuacan ngahubungan rojongan customer, ulangview masalah umum sareng solusi ieu:
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| Unit teu hurung | Teu aya listrik, pemutus sirkuit pareum, colokanna kendur. | Check power supply, reset breaker, ensure plug is fully inserted. |
| Cooling / pemanasan teu cukup | Dirty air filter, blocked air intake/outlet, room too large, doors/windows open. | Clean filter, clear obstructions, ensure proper room size, close doors/windows. |
| Cai ngeclak di luar | Normal operation (condensation). | This is normal during cooling/dehumidifying. Ensure proper drainage. |
| Unit ribut | Bagian longgar, unit henteu tingkat, halangan kipas. | Check for loose components, ensure unit is level, clear fan area. |
8. Spésifikasi
Technical details for the Keystone KSTHW25B Air Conditioner:

Figure 8.1: Physical dimensions and weight of the unit.

Figure 8.2: Room size guide based on BTU capacity.
| Spésifikasi | Nilai |
|---|---|
| Nomer modél | KSTHW25B |
| Daya cooling | 23,200 BTU |
| Supplemental Heating Power | 16,000 BTU |
| Panutup Wewengkon Lantai | Nepi ka 1,500 Sq. Ft. |
| Voltage | 230 volt |
| Kamampuh Dehumidifier | 5.7 Pint/jam |
| Tingkat Noise | 56.3 dB |
| Ukuran produk (D x W x H) | 25.39 x 23.62 x 17.91 inci |
| Item Beurat | 121 pon |
| Faktor Bentuk | Window/Wall |
| Bee Peunteun Star | 4 Béntang |
| Rasio Éfisiensi Énergi Musiman (SEER) | 9.4 |
| Komponén Kaasup | AC unit, remote, batteries, mesh air filter, window installation kit |
9. Garansi jeung Rojongan
9.1 Émbaran jaminan
This Keystone air conditioner comes with a garansi 1 taun covering parts and labor. Additionally, there is an extended garansi 4 taun specifically for the sealed system components.
Punten tahan bukti pameseran anjeun pikeun klaim garansi.
9.2 Rojongan Palanggan
For technical assistance, troubleshooting beyond this manual, or warranty service, please contact Keystone customer support. Refer to the contact information provided with your product packaging or visit the official Keystone websitus pikeun detil rojongan ayeuna.





