Generac Power Systems 004920-0 Owner's Manual page 20

4. On the generator panel, set the AUTO/OFF/
MANUAL switch to MANUAL position. The gener-
ator 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.
DANGER
PROCEED WITH CAUTION. GENERATOR OUT-
PUT VOLTAGE IS NOW BEING DELIVERED TO
TRANSFER SWITCH TERMINALS. CONTACT
WITH LIVE TERMINALS RESULTS IN EXTREMELY
DANGEROUS AND POSSIBLY FATAL ELECTRI-
CAL SHOCK.
7. With an accurate AC voltmeter and frequency
meter, check the no-load, voltage and frequency.
Single-phase generator supply:
Measure across ATS terminal lugs E1 to E2; E1
to NEUTRAL and E2 to NEUTRAL.
a. Frequency ......................................60-62 Hertz
b. Terminals E1 to E2 ........................240-246 VAC
c. Terminals E1 to NEUTRAL ............120-123 VAC
d. Terminals E2 to NEUTRAL ............120-123 VAC
18 Generac ® Power Systems, Inc.
Section 3 — Operation
Generac Liquid-cooled 20 kW Generator
Figure 3.5 — Actuating Transfer Switch
Failure to do so may result in damage to cer-
!
tain rotary equipment.
8. Set the generator's main circuit breaker (CB1) to
its OFF or OPEN position.
9. Set the AUTO/OFF/MANUAL switch to the OFF
position to shut down the generator.
Do NOT proceed until generator AC output voltage
and frequency are correct and within stated limits.
If the no-load voltage is correct but no-load fre-
quency is incorrect, the engine governed speed
probably requires adjustment. If no-load frequen-
cy is correct but voltage is not, the voltage regula-
tor may require adjustment.
NOTE: