Alpha Technologies 255A Bypass Switch - Manual (Page 13)

11 0200018-J0 Rev C
5. Installation
WARNING!
Make sure that you have read and understood all the information given in "Product
Safety Information" on page 3.
Always operate the switch with a quick continuous motion, do not hold it in mid-posi-
tion.
CAUTION!
DO NOT operate the bypass switch while the UPS is in inverter mode (front display on
the UPS shows INVERTER).
CAUTION!
Operating with the inputs out of phase could cause damage to the critical loads.
CAUTION!
5.1 Installing the Manual Bypass Handle
The unit ships with the handle sitting in the NORMAL position but
not installed (Figure 4.)
Install the handle as shown in Figure 6. The collet, the segmented
sleeve that fits around the shaft, is keyed to the shaft (Figure 5.
Take care not to rotate the handle in relation to the collet. The collet
slides on the shaft with little resistance when aligned correctly.
A raised line on the
plastic is the key
indicator on the
collet.
Shaft key is
corner notched
Figure 4 — Shipping position
Figure 5 — Shaft and collet keying Figure 6 — Handle install sequence