This is an operation manual for ACU230. The device can be used to control two air conditioners, automatically switching from one air conditioner to the other at pre-determined times, or turning on both units when high indoor temperatures demand it. It also monitors the power sources for over-voltage, under-voltage, and over-current conditions, and provides dry contactors for each failure and AC ON/OFF status lights, making it possible to monitor it remotely. In addition, a fully illuminated front panel immediately reports to the operator the condition of the system. If the ACU230 control unit fails, it has two breakers for manual override, these breakers forces any of the AC ON/OFF. The user can remotely operate both AC from the control center away from station. The pc-board is protected with epoxy.
The ACU230 is a control unit designed to manage two air conditioners in a cell-phone repeater station. It automatically switches between units based on temperature or voltage conditions and provides remote monitoring via dry contactors and LED indicators. The unit features adjustable settings for over/under temperature, voltage, and current thresholds, with real-time display of temperature, voltage, and current. It also includes manual override options and a single-chip microprocessor for reliability. The manual details how to adjust each setting using front panel controls and explains the operation of the unit’s monitoring and switching functions.
| Power Input | 220VAC 50/60HZ ±15% |
|---|---|
| Magnetic Contact Switch Capacity | Maximal Ith=32A |
| Temperature Error Value | Less than ± 0.5°C |
| Dimensions | 220(W) * 380(H) * 140(D) mm |
| Over Temperature Setting Range | 25°C ~ 40°C |
| Working Temperature Setting Range | 20°C ~ 30°C |
| Standby AC Temperature Setting Range | 1°C ~ 10°C |
| Under Temperature Setting Range | 10°C ~ 25°C |
| Over Voltage Setting Range | 230VAC ~ 275VAC |
| Under Voltage Setting Range | 210VAC ~ 165VAC |
| Over Load Current Setting Range | 5A ~ 50A |
| Under Action Current Setting Range | 0A ~ 10A |
| Change Over Time Setting Range | 1 hour ~ 168 hours |
The ACU230 automatically transfers from one AC to the other at pre-determined times or when high indoor temperatures require it. It also switches based on voltage and current conditions.
The temperature error value is less than ±0.5°C.
Press the F key to select 'FUN1', then use the up or down keys to set the desired value. Wait 5 seconds for the microprocessor to save the setting.
Yes, the ACU230 provides dry contactors for remote failure supervision and status lights for remote monitoring.