TP-7070 7/1822 Section 2 Operation
2.2 Exercising Generator Set
Hazardous voltage. Moving parts.
Will cause severe injury or death.
Operate the generator set only when
all guards and electrical enclosures
areinplace.
DANGER
Operate the generator set under load once each week
for one hour. Perform the exercise in the presence o f an
operator when the generator set does not have an
automatic transfer switch with an exercise option.
During the exercise period apply a minimum of 30% load
based on the nameplate standby rating, unless
otherwise instructed in the engine operation manual.
The operator should perform all of the prestart checks
before starting the manual exercise procedure. Start
the generator set according to the starting procedure in
Section 2.5, Controller Operation. While the generator
set is operating, listen for a smooth-running engine and
visually inspect generator set for fluid or exhaust leaks.
The generator set controller does not provide weekly
scheduled exercise periods. For scheduled exercise
periods, refer to the automatic transfer switch (if
equipped) literature.
2.3 Operation in Cold Weather
Climates
Cold weather operation is generally considered ambient
temperatures below freezing 0C(32F). The following
items are recommended for cold weather starting and/or
operation when the unit is located in an enclosure or
unheated structure. Have a licensed electrician install
240 VAC, 15 amp outlets as needed if not already in the
immediate area.
Refer to the engine operation manual regarding engine
oil viscosity, fuel composition, and coolant mixture
recommendations.
D The engine block heater is generally recommended
for most units when operated below 0C(32F) and
required as part of NFPA 110. Refer to the respective
spec sheet for temperature recommendations in
available options.
D The controller heater is required for operation below
-- 2 0 C(--4F). The controller heater is a standard
feature. Make sure that 240 VAC power for the heater
is connected as shown on the generator set wiring
diagram.
D A battery heater is generally recommended for most
units when operated below 0C(32F). Refer to the
respective spec sheet for model availability.
D An alternator heater to prevent moisture and frost
buildup is available for most generator sets.
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