114062B System Users Manual
C H A P T E R 7
OPTIONS
MAINTENANCE BYPASS PROCEDURE
CAUTION:
HAZARDOUS VOLTAGES – ONLY QUALFIED SERVICE PERSONNEL SHOULD PERFORM PROCEDURE.
System Into Bypass Mode
1. Open System doors. Locate Maintenance Bypass Switch behind left-hand door on chassis.
2. Turn Maintenance Bypass Switch handle from normal mode (UPS) (10 O’clock position) to
clear mode (*) (12 O’clock position) and push handle in, after engaging handle turn to bypass
mode (BYPASS) (2 O’clock position).
3. Locate Installation Switch behind right-hand door on chassis. Turn the Installation Switch to
the (OFF) position.
4. Locate Input Circuit Breaker (CB1) behind left-hand door on chassis. Turn the Input circuit
Breaker to the (OFF) position.
5. Locate Main Battery Fuse behind right-hand door on chassis. Remove Main Battery fuse.
CAUTION:
HAZARDOUS VOLTAGES STILL EXIST AT THE BATTERY TERMINAL BLOCK AND
WITHIN THE SYSTEM. AUTHORIZED SERVICE TECHNICIANS MUST DISCHARGE DC
CAPACITORS BEFORE SERVICING EQUIPMENT. LOCATE DISCHARGE SWITCH ON
INVERTER CHASSIS. PRESS IT FOR 10 SECONDS.
WARNING:
DO NOT LEAVE THE SYSTEM SHUTDOWN FOR A PROLONGED LENGTH OF TIME.
LEAD BASED BATTERIES WILL EXPERIENCE PERMANENT DAMAGE FROM LACK OF
CHARGING.
Remove all Battery String Fuses from Fuse Holders (10KVA – 16.7KVA Systems).
System On Line From Bypass Mode
1. Verify that the Installation Switch located on inverter chassis is in the (OFF) position.
2. Install all Battery String Fuses. (10KVA – 16.7KVA Systems)
3. Press and hold DC Pre-charge switch located on the inverter chassis for approximately five
seconds and then install the Main Battery Fuse on the inverter chassis. If a large flash
occurs, the batteries are not connected properly. Call service immediately.
4. Turn the Input Circuit Breaker (CB1) to the (ON) position.
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