1. Ifihan
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. Alaye Aabo
Awọn Itọsọna Aabo pataki:
- 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.
- Máa yọ agbára kúrò kí o tó sọ ọ́ di mímọ́ tàbí kí o tó tún un ṣe.
- Ma ṣe ṣiṣẹ ẹyọ naa pẹlu okun agbara ti o bajẹ tabi pulọọgi.
- Rii daju didasilẹ to dara lati dinku eewu ti mọnamọna.
- Jeki awọn ohun elo apoti kuro ni arọwọto awọn ọmọde.
- 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. Ọja Ipariview
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.
Awọn ẹya pataki:
- Agbara Itutu: 23,200 BTU, o dara fun awọn yara to iwọn 1,500 sq. ft.
- Atunse Afikun: 16,000 BTU, for use when outdoor temperatures are between 23°F and 76°F.
- Igbẹmi tutu: Ó máa ń mú omi tó tó 5.7 pints kúrò ní wákàtí kan.
- Išẹ Olufẹ: Circulates air with multiple fan speeds.
- Iṣakoso Latọna jijin Smart: Features a 'Follow Me' function for precise temperature sensing.
- Àwọn Ọ̀nà Ìfipamọ́ Agbára: Includes 'Energy Saver' and 'Sleep' modes.
- Irọrun fifi sori ẹrọ: Designed for window or through-the-wall installation with a removable chassis.

olusin 3.1: Iwaju view of the Keystone KSTHW25B Air Conditioner.

Olusin 3.2: Pariview of the unit's 4-in-1 functionality.
4. fifi sori
The KSTHW25B unit can be installed in a window or through an exterior wall. A window installation kit is included.
4.1 Electrical ibeere
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 Window fifi sori
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.

Olusin 4.3: Example 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. Awọn ilana Iṣiṣẹ
Your Keystone air conditioner can be operated using the control panel on the unit or the included smart remote control.
5.1 Iṣakoso latọna jijin
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 Awọn ọna ṣiṣe
- Ipo Itura: Provides cooling for the room. Adjust temperature and fan speed as desired.
- 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.
- Ipò Ìtújáde: Reduces humidity in the room. The fan operates at a low speed in this mode.
- Ipo Ipele: Circulates air without cooling or heating. Select desired fan speed (Low, Medium, High).
5.3 Energy-Saving Features
- Ipo Ipamọ Agbara: The fan will cycle on and off with the compressor to reduce energy consumption.
- Ipo orun: Gradually increases the set temperature over several hours to save energy and provide comfortable sleeping conditions.
- Aago 24-wakati: Allows you to program the unit to turn on or off automatically within a 24-hour period.

Figure 5.2: Sleep mode for energy efficiency and comfort.
6. Itọju
Itọju deede ṣe idaniloju iṣẹ ṣiṣe ti o dara julọ ati igbesi aye gigun ti afẹfẹ afẹfẹ rẹ.
6.1 Air Filter Cleaning
The unit is equipped with a mesh air filter. A 'Filter Light Reminder' will illuminate to indicate when the filter needs cleaning. To clean:
- Ge asopọ agbara si ẹyọkan.
- Remove the front panel and slide out the air filter.
- Wẹ àlẹmọ pẹlu gbona, omi ọṣẹ. Fi omi ṣan daradara.
- Gba àlẹmọ laaye lati gbẹ patapata ṣaaju fifi sori ẹrọ.
- Reinstall the filter and front panel, then restore power.
6.2 Gbogbogbo Cleaning
Mu ese ita kuro pẹlu asọ, damp cloth. Do not use harsh chemicals or abrasive cleaners. Ensure the drainage area is clear of obstructions.
7. Laasigbotitusita
Ṣaaju ki o to kan si atilẹyin alabara, tunview Awọn iṣoro ti o wọpọ ati awọn solusan wọnyi:
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Ẹka ko ni tan-an | Kò sí agbára, ẹ̀rọ ìdènà ìṣiṣẹ́ tí ó ti bàjẹ́, páálí tí ó dẹ̀. | Check power supply, reset breaker, ensure plug is fully inserted. |
| Insufficient itutu / alapapo | Dirty air filter, blocked air intake/outlet, room too large, doors/windows open. | Clean filter, clear obstructions, ensure proper room size, close doors/windows. |
| Omi ti n ṣan ni ita | Normal operation (condensation). | This is normal during cooling/dehumidifying. Ensure proper drainage. |
| Unit jẹ alariwo | Loose parts, unit not level, fan obstruction. | Check for loose components, ensure unit is level, clear fan area. |
8. Awọn pato
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.
| Sipesifikesonu | Iye |
|---|---|
| Nọmba awoṣe | KSTHW25B |
| Agbara Itutu | 23,200 BTU |
| Supplemental Heating Power | 16,000 BTU |
| Pakà Area Ideri | Titi di 1,500 Sq. Ft. |
| Voltage | 230 Volts |
| Dehumidifier Agbara | 5.7 pints / aago |
| Ariwo Ipele | 56.3 dB |
| Awọn iwọn Ọja (D x W x H) | 25.39 x 23.62 x 17.91 inches |
| Iwọn Nkan | 121 iwon |
| Fọọmù ifosiwewe | Window/Wall |
| BEE Star Rating | 4 Irawo |
| Ipin Iṣiṣẹ Agbara Igba Igba (SEER) | 9.4 |
| Awọn irinše to wa | AC unit, remote, batteries, mesh air filter, window installation kit |
9. Atilẹyin ọja ati Support
9.1 atilẹyin ọja Alaye
This Keystone air conditioner comes with a 1-odun atilẹyin ọja covering parts and labor. Additionally, there is an extended 4-odun atilẹyin ọja specifically for the sealed system components.
Jọwọ ṣe idaduro ẹri rira rẹ fun awọn iṣeduro atilẹyin ọja.
9.2 Onibara Support
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 webaaye fun awọn alaye atilẹyin lọwọlọwọ.





