Guardian Technologies 04760-2 Manual De Usuario

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4.  Use the manual transfer handle inside the trans-
fer switch to move the main contacts to their 
“Standby” position, i.e., loads connected to the 
standby power source (Figure 3.2).
5.  To crank and start the engine, set the AUTO/OFF/ 
MANUAL switch to MANUAL.
6.  Let the engine stabilize and warm up for a few 
minutes.
7.  Set the generator’s main circuit breaker to its ON 
(or closed) position. The standby power source 
now powers the loads.
Figure 3.2 – Manual Transfer Switch Operation
 3.5.2  
TRANSFER BACK TO UTILITY POWER 
SOURCE
When utility power has been restored, transfer back 
to that source and shut down the generator. This can 
be accomplished as follows:
1.  Set the generator’s main circuit breaker to its 
OFF (or open) position.
2.  Let the engine run for a minute or two at no-load 
to stabilize the internal temperatures.
3.  Set the generator’s AUTO/OFF/MANUAL switch 
to its OFF (or open) position. The engine should 
shut down.
4.  Check that utility power supply to the transfer 
switch is turned OFF.
DANGER
  Do not attempt to activate the transfer switch 
manually until all power voltage supplies to the 
switch have been positively turned off. Failure 
to turn off all power voltage supplies may result 
in extremely hazardous and possibly fatal elec-
trical shock.
‹
5.  Use the manual transfer handle inside the trans-
fer switch to move the main contacts back to their 
“Utility” position, i.e., loads connected to the util-
ity power source (Figure 3.2).
6.  Turn ON the utility power supply to the transfer 
switch using the means provided.
7.  Set the system to automatic operation as outlined 
in “Automatic Transfer Operation,” Section 3.3.
3.6  SETTING THE EXERCISE TIMER
The generator is equipped with an exercise timer. 
Once it is set, the generator will start and exercise 
once every seven days, on the day of the week and at 
the time of day the following sequence is completed. 
During this exercise period, the unit runs for approx-
imately 12 minutes and then shuts down. Transfer of 
loads to the generator output does not occur during 
the exercise cycle.
A switch on the control panel (see Figure 3.1) permits 
selection of the day and time for system exercise. To 
select the desired day and time of day, the following 
sequence must be performed at that time.
1.  Verify that the AUTO/OFF/MANUAL switch is set 
to AUTO.
2.  Hold down the set timer switch until the genera-
tor starts (approximately 10 seconds) and then 
release.
3.  The generator will start and run for approximately 
12 minutes and then shut down on its own. The 
exerciser will then be set to run at that time of day 
every week.
NOTE:
The exerciser will only work in the AUTO mode 
and will not work unless this procedure is per-
formed. The exerciser will need to be reset every 
time the 12-volt battery is disconnected and then 
reconnected. The exerciser WILL NOT work if 
dip switch 2 (Remote Not Auto) on the controller 
printed circuit board is ON.
3.7 PROTECTION 
SYSTEMS
3.7.1  LOW OIL PRESSURE SWITCH
This switch (Figure 3.3) has normally closed con-
tacts that are held open by engine oil pressure during 
cranking and operating. Should oil pressure drop 
below the 8 psi range, switch contacts close, and the 
engine shuts down. The unit should not be restarted 
until oil is added, and the AUTO/OFF/MANUAL switch 
must be turned to OFF and then back to AUTO.
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Section 3 — Operation
Air-cooled 7 kW, 12 kW and 15 kW Generators
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