Lincoln Electric RANGER 250 LPG IM931 - Manual (Page 15)

A-7 INSTALLATION
RANGER 250 LPG
A-7
AUXILIARY POWER RECEPTACLES
Start the engine and set the “IDLER” control switch to
the “High Idle” mode. Voltage is now correct at the
receptacles for auxiliary power. This must be done
before a tripped GFCI receptacle can be reset proper-
ly. See the MAINTENANCE section for detailed infor-
mation on testing and resetting the GFCI receptacle.
The auxiliary power of the RANGER 250 LPG con-
sists of two 20 Amp-120 VAC (5-20R)GFCI duplex
receptacles and one 50 Amp 120/240 VAC (14-50R)
receptacle. The 240 VAC receptacle can be split for
single phase 120 VAC operation.
The auxiliary power capacity is 9,000 Watts Peak,
8000 Watts Continuous of 60 Hz, single phase power.
The auxiliary power capacity rating in watts is equiva-
lent to volt-amperes at unity power factor. The max
permissible current of the 240 VAC output is 33 Amps.
The 240 VAC output can be split to provide two sepa-
rate 120 VAC outputs with a max permissible current
of 33 Amps per output to two separate 120 VAC
branch circuits (these circuits cannot be paralleled).
Output voltage is within ± 10% at all loads up to rated
capacity. All auxiliary power is protected by circuit
breakers.
The 120V auxiliary power receptacles should only be
used with three wire grounded type plugs or approved
double insulated tools with two wire plugs. The current
rating of any plug used with the system must be at
least equal to the current capacity of the associated
receptacle.
NOTE: The 240V receptacle has two 120V circuits,
but are of opposite polarities and cannot be paralleled.
STANDBY POWER CONNECTIONS
The RANGER 250 LPG is suitable for temporary,
standby or emergency power using the engine manu-
facturer’s recommended maintenance schedule.
The RANGER 250 LPG can be permanently installed
as a standby power unit for 240 VAC, 3 wire, single
phase, 33 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.
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 customer’s premises disconnect
and service over current protection.
2. Take necessary steps to assure load is limited to
the capacity of the RANGER 250 LPG by installing
a 40 amp, 240 VAC double pole circuit breaker.
Maximum rated load for each leg of the 240 VAC
auxiliary is 33 amperes.
Loading above the rated output will reduce output
voltage below the allowable - 10% of rated voltage
which may damage appliances or other motor-dri-
ven equipment and may result in overheating of the
RANGER 250 LPG engine and/or alternator wind-
ings.
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 or as part number T12153-9.)
4. Plug this cable into the 50 Amp, 120/240 Volt
receptacle on the RANGER 250 LPG case front.