This document is an instruction manual for the AM-2253NCAL and AM-2251NAL variable frequency split air conditioners. The document provides guidance on the installation, use, and maintenance of the products, as well as emphasizing safety precautions. It also introduces the features and characteristics of the products, including grounding requirements, operating temperatures, moisture and dust resistance levels, and power requirements.
This manual outlines safety precautions and proper installation for the Sampo AM‑2253NCAL (cooling/heating) and AM‑2251NAL (cooling only) air‑conditioners, including required power‑cable specifications, grounding requirements, and maximum pipe length. It also details the functions of indoor and outdoor unit components, wiring diagrams, and recommended grounding practices.
Operational guidance covers the control panel functions such as temperature setting, wind‑speed selection, cleaning‑indicator reset, battery replacement, and troubleshooting. Maintenance steps, including filter cleaning and periodic checks, are described to ensure reliable performance and longevity of the units. This manual is written in Chinese.
| Discharge pressure | 27 kg/cm² |
|---|---|
| Suction pressure | 6 kg/cm² |
| Operating temperature range (hot side) | 21 °C – 43 °C |
| Operating temperature range (cold side) | 21 °C – 32 °C |
| Power cable cross‑section | 3.5 mm² or 2.0 mm² copper |
| Ground wire size | ≥2.5 mm² and ≤6.0 mm² |
| Maximum pipe length | 7 m |
Use a dedicated power cable with double insulation, a cross‑section of 3.5 mm² or 2.0 mm² copper, and a ground wire of at least 2.5 mm² but not more than 6.0 mm².
The piping length must not exceed 7 meters.
Press the cleaning button after the filter is cleaned to reset the timer to zero.
Replace the battery when the display shows the battery‑replace icon.