Section 3 — Operation
ATS “HS” Type Transfer Switch
Figure 3.1 — Actuating Transfer Switch
Attach handle to
the moveable contact carrier arm.
NOTE: Return handle to storage position in enclosure when finished with manual transfer.
Move handle UP for the
NORMAL (UTILITY) position.
Move handle DOWN for the
STANDBY (EMERGENCY) position.
•Manual operation handle in the DOWN posi- tion - LOAD terminals (T1, T2) are connected to EMERGENCY terminals (E1, E2).
Do not use excessive force when operating the transfer switch manually or damage could be done to the manual handle.
3.2.1 CLOSE TO NORMAL SOURCE SIDE
Before proceeding, verify the position of the switch by observing the position of manual operation handle in Figure 3.1. If the handle is UP, the contacts are closed in the NORMAL (UTILITY) position, no further action is required. If the handle is DOWN, proceed with Step 1.
Step 1: With the handle inserted into the moveable contact carrier arm, move handle UP. Be sure to hold on to the handle as it will move quickly after the center of travel.
Step 2: Remove manual operating handle from move- able contact carrier arm. Return handle to storage bracket.
3.2.2 CLOSE TO EMERGENCY SOURCE SIDE
Before proceeding, verify the position of the switch by observing the position of the manual operation handle in Figure 3.1. If the handle is DOWN, the contacts are closed in the EMERGENCY (STANDBY) position. No further action is required. If the handle is UP, proceed with Step 1.
Step 1: With the handle inserted into the moveable contact carrier arm, move the handle DOWN. Be sure to hold on to the handle as it will move quickly after the center of travel.
Step 2: Remove manual operating handle from move- able contact carrier arm. Return handle to storage bracket.
3.2.3 RETURN TO NORMAL SOURCE SIDE
Step 1: Manually actuate switch to return manual operating handle to the UP position.
Step 2: Remove manual operating handle from move- able contact carrier arm. Return handle to storage bracket.
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