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38 | 7.0 Maintenance

7.2 Battery Charging

The batteries are valve-regulated, non-spillable, lead acid and should be kept charged to attain their design life. The

S4K2UC charges the batteries continuously when it is connected to the utility input power.

If the S4K2UC will be stored for a long time period of time, SolaHD recommends connecting the UPS to input power for at

least 24 hours every four to six months to ensure full recharge of the batteries.

7.3 Precautions

Although the S4K2UC has been designed and manufactured to ensure personal safety, improper use can result in elec-

trical shock or re. To ensure safety, observe the following precautions:

• Turn o and unplug the S4K2UC before cleaning it

• Clean the UPS with a dry cloth—do not use liquid or aerosol cleaners

• Never block or insert any objects into the ventilation holes or other openings of the S4K2UC

• Do not place the S4K2UC power cord where it might be damaged

7.4 Checking UPS Status

SolaHD recommends checking the UPS operation status every six months.

• Check if the UPS is faulty: Is the Fault Indicator on? Is the UPS sounding an alarm?

• Check if the UPS is operating in Bypass Mode. Normally, the UPS operates in Normal Mode; if it is operating in

Bypass Mode, stop and contact your local SolaHD representative or SolaHD Technical Support.

• Check if the battery is discharging. When the utility input is normal, the battery should not discharge. If the UPS is

operating in Battery Mode, stop and contact your local SolaHD representative or SolaHD Technical Support.

7.5 Checking UPS Functions

NOTE: UPS function check procedures may interrupt power supply to the connected load. Back up all critical load data

before conducting the UPS functions check.

SolaHD recommends checking the UPS functions once every six months.

Procedures are as follows:

1. Press the Standby/Manual Bypass button to check whether the alarm and indicators are normal.

2. Press the On/Alarm Silence/Manual Battery Test button to check again whether the indicators are on and the UPS is

operating normally.

3. Press the On/Alarm Silence/Manual Battery Test button for 3 seconds after Inverter Mode; the UPS should initiate

battery self-test. Check to determine whether the battery is operating normally. If not, stop and contact your local

SolaHD representative or SolaHD Technical Support.

Emerson SOLAHD S4KC Series User Manual

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