9.
5
.8.2
CLOSE TO GENERATOR 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 GENERATOR (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 moveable contact
carrier arm. Return handle to storage bracket.
9.
5
.8.3
RETURN TO UTILITY SOURCE SIDE
Step 1: Manually actuate switch to return manual operating handle to
the UP position.
Step 2: Remove manual operating handle from moveable contact
carrier arm. Return handle to storage bracket.
9.
5
.9
VOLTAGE CHECKS
1. Turn ON the UTILITY power supply to the transfer switch using
the UTILITY SERVICE DISCONNECT circuit breaker.
PROCEED WITH CAUTION. THE TRANSFER
SWITCH IS NOW ELECTRICALLY HOT.
CONTACT WITH LIVE TERMINALS RESULTS
IN EXTREMELY HAZARDOUS AND POSSIBLY
FATAL ELECTRICAL SHOCK.
2. With an accurate AC voltmeter, check for correct voltage.
Measure across ATS terminal lugs N1 and N2. Also check N1 to
NEUTRAL and N2 to NEUTRAL.
3. When certain that UTILITY supply voltage is correct and compatible
with transfer switch ratings, turn OFF the UTILITY supply to the
transfer switch.
4. On the generator panel, set the AUTO/OFF/ MANUAL switch to
MANUAL position. The generator should crank and start.
5. Let the generator stabilize and warm up at no-load for at least
five minutes.
6. Set the generator's main circuit breaker (CB1) to its ON or
CLOSED position.
PROCEED WITH CAUTION. GENERATOR
OUTPUT VOLTAGE IS NOW BEING DELIVERED
TO TRANSFER SWITCH TERMINALS.
CONTACT WITH LIVE TERMINALS RESULTS
IN EXTREMELY DANGEROUS AND POSSIBLY
FATAL ELECTRICAL SHOCK.
7. With an accurate AC voltmeter and frequency meter, check the
no-load, voltage and frequency.
Larson Electronics, LLC
Phone: (877) 348-9680
Fax: (903) 498-3364
www.larsonelectronics.com
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