Holiday imperial 2001, Owner'S Manual, Page: 210 / 301

Electrical Systems - House
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The Combiner Box:
The Combiner Box is located on the side of the refrigerator vent on the roof.
It has four standard ½” knock outs to allow you to add any extra solar panels
you may desire to meet your dry-camping needs.
The Charge Controller:
The Charge Controller was built specifically to meet the needs of
Monaco motorhomes. The faceplate has a digital readout that will dis-
play one of three readings by means of a slider switch: House Battery
Voltage, Amps Charge or Engine Battery Voltage.
There are also three indicator lights for at a glance status: Charging
(which means the system is actively charging), Charged (which means
the batteries have reached 14.2 Volts) and Over Temp (which means
that the circuit board has reached a high temperature and has been
turned off until it cools down, then it will turn back on automatically).
The faceplate of the controller is used as a heat sink for the electronics
attached to it, and will become warm to the touch especially when it is process-
ing higher amperage. This is normal and there is no reason to be concerned.
Automatic thermal shutdown (indicated by the Overtemp light) will be activated
if it gets too warm.
The RV-30 Charge Controller has many unique features which are listed
and described below:
1. Battery Charging - The above mentioned parasitic loads affect both the
House and Engine batteries. The controller automatically charges both
the House and Engine batteries at the same time to deal with this issue.
2. Pulse Width Modulation - This charging strategy has been found by the
Sandi National Laboratories to maintain the highest state of charge with
the least amount of battery water consumption. In effect, it delivers all
the available charging amperage until the batteries reach 14.2 Volts (this
stage is called bulk charging) and then it begins to taper off amperage
(absorption stage) until it is reduced to all that is needed to simply hold
the battery at 14.2 Volts (Float Stage).
3. Temperature Compensation - The gassing threshold of the batteries is
reached at around 14.1 to 14.4 Volts at room temperature (25º C). If the
temperature of the batteries is hotter than 25º C, the gassing threshold is
reached at a lower voltage. If the temperature of the batteries is colder
than 25º C, the gassing threshold is reached at a higher voltage. This
feature protects your batteries from excess water loss and/or plate
sulfation by automatically compensating for these temperature changes
and adjusting the charging voltage accordingly.
I M P E R I A L
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Charge Controller
Features