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TIFFIN MOTORHOMES
–ALLEGRO®
Chapter 7
ELECTRICAL FEATURES
If the batteries are not going to be used for an extended period of time, they should be removed from the Allegro
and stored in a warm, dry place. IT IS STRONGLY RECOMMENDED that this service be performed by a qualified
service technician, as the process is usually too complicated for the average owner to perform. For those who may
wish to perform this service themselves, the following procedure is described: Mark the battery cables ("+" sign or
"red" for the positive cable; " - " sign or "black" for the negative cable) sothat they can be properly reconnected
again later. These batteries would require periodic recharging to maintain their full charge.
Additionally, the batteries will, over time, lose some of the water used with the sulfuric acid in the batteries.
Following manufacturer's recommendations as found in the Owner's Information Package, periodically check
the fluid levels in all the cells of the batteries (be sure to use safety eyewear during this process) and fill those
that are low with water (distilled or de-ionized water is preferred; tap water is okay). Don't overfill the cells;
follow the filling directions exactly. This battery checkup should be done on a regular basis to realize the fullest
service possible from the batteries over the longest time possible.
If the Allegro is to be stored for an extended period of time, the 12 VDC battery system should be
disconnected—this procedure will prevent unnecessary drain and corrosion of the batteries and their terminals.
Battery Disconnect Panel
The battery disconnect panel (Figure 7-4) is located by the entrance door. There is a switch on the
right-hand side of the panel which can disconnect the battery when the vehicle is to be stored for
any appreciable time. Turning this switch "off" disconnects the coach batteries only, not the
chassis batteries. This feature is designed to prevent the coach batteries from being drained
during storage. This switch also disconnects all the 12 VDC circuitry from the batteries; thus
removing the total electrical load from those batteries, with the exception of the LP detector.
When the Allegro is removed from storage, turn the switch "on" to reconnect the 12 VDC circuitry
to the coach batteries again and the 12 VDC systems are now reactivated.
Figure 7-4. Battery
Disconnect Panel
120-Volt AC (VAC) Receptacles
Your Allegro Motor Home is equipped with several 120 VAC receptacles (Figure 7-5) located throughout the interior
of the motor home. These 120 VAC receptacles are of the "three-prong" variety; the third prong being a grounding
pin which provides adequate grounding to protect one from any electrical shock.
For these receptacles to work properly, do not use an adapter, cheater, or extension cord which
defeats the function of the grounding pin. For the same reason, never remove or bend away the
ground prong or pin from any three-prong AC plug so that it would fit a two-prong AC receptacle
(i.e., an ungrounded AC receptacle).
Never operate the Allegro if there is an electrical short present, as an electrical short may deliver
an electrical shock to anyone coming in contact with the exterior of the unit. If you should feel
even the slightest of electrical shock, immediately disconnect the unit from the 120 VAC power
source and locate the electrical fault (i.e., typically, it is a break in the grounding circuit).
Figure 7-5. Typical
Do not reconnect the 120 VAC power until after that electrical fault is fixed—the grounding circuit
AC Receptacle
must be continuous from the frame to the distribution panel, to the power cord, and to the earth
ground so that electrical-shock protection is realized.
7-5
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