Lincoln Electric IM10102 AIR VANTAGE 650 - Manual (Page 17)

A-7 INSTALLATION
AIR VANTAGE ® 650 CUMMINS
A-7
NOTE: The 240 V receptacle has two 120 V circuits, but
are of opposite polarities and cannot be paralleled.
All auxiliary power is protected by circuit breakers. The
120V has 20 Amp circuit breakers for each duplex recep-
tacle. The 120/240V Single Phase and the 240V Three-
Phases have a 50 Amp 3-pole Circuit Breaker that dis-
connects both hot leads and all Three Phases simultane-
ously.
STANDBY POWER CONNECTIONS
The AIR VANTAGE ® 650 CUMMINS is suitable for
temporary, standby or emergency power using the
engine manufacturerʼs recommended maintenance
schedule.
The AIR VANTAGE ® 650 CUMMINS can be perma-
nently installed as a standby power unit for 240 volt-3
wire, 50 amp service. Connections must be made by a
licensed electrician who can determine how the
120/240 VAC power can be adapted to the particular
installation and comply with all applicable electrical
codes. The following information can be used as a
guide by the electrician for most applications. Refer to
the connection diagram shown in Figure A.2.
1. Install the double-pole, double-throw switch
between the power company meter and the premis-
es disconnect.
Switch rating must be the same or greater than the
customerʼs premises disconnect and service over cur-
rent protection.
2. Take necessary steps to assure load is limited to
the capacity of the AIR VANTAGE ® 650 CUMMINS
by installing a 50 amp, 240 VAC double pole circuit
breaker. Maximum rated load for each leg of the
240 VAC auxiliary is 50 amps. Loading above the
rated output will reduce output voltage below the
allowable -10% of rated voltage which may damage
appliances or other motor-driven equipment and
may result in overheating of the AIR VANTAGE
®
650 CUMMINS engine.
3. Install a 50 amp 120/240 VAC plug (NEMA Type
14-50) to the double-pole circuit breaker using No.
6, 4 conductor cable of the desired length. (The 50
amp, 120/240 VAC plug is available in the optional
K802R plug kit.)
4. Plug this cable into the 50 Amp 120/240 Volt recep-
tacle on the AIR VANTAGE ® 650 CUMMINS case
front.