Coleman Air C440-HVAD, Руководство пользователя

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bulbs and similar such loads are not good diversion (dummy) loads, since they will fail and you may be left with no
method to dump the excess energy going into your batteries.
It is commonly thought that a standard 120vac, 2000 watt heating element (readily available from your local hardware
store), would make a good load; however, in reality, they are not well suited, as it takes several of these elements to
actually be effective in lower voltage systems. A 2000 watt, 120VAC element will not dissipate 2000 watts at lower
voltages. You will need to install multiple elements in parallel to achieve the desired load specifications.
Please use the following chart as a quick guide in using a 2000-watt, 120 VAC heating elements.
60Vdc dump (48Vdc system) -- 500 Watts -- 8.3 amps
30Vdc dump (24Vdc system) -- 125 Watts -- 4.2 amps
15Vdc dump (12Vdc system) -- 35 Watts – 2.1 amps
120Vac -- 2000 Watts, at 16.7 amps
Basically, a standard 2000-watt, 120 VAC element, in a 12-volt system will only dissipate 35 watts.
Water heating elements designed specifically for 12, 24 and 48-volt systems are by far a better choice.
A very acceptable diversion load is a power resistor. These can be obtained via your Coleman Air dealer. Various
wattages are available as either completed load centers or individual power resistors.
Product Code: L675W12V
45A/12V 675 Watt Diversion Dummy Load Resistor Heater -- For 12 volt systems
Product Code: 2R100W
2 Ohm, 100 Watt power resistor for 12v systems.
Place multiple resistors or load centers in parallel for a higher wattage load. When you place the same value resistors
in parallel, you double the wattage rating, and ½ the resistance. This is a safe method of doubling the
wattage/amperage handling capability of your diversion load.
Note: you cannot simply use a lower value resistance without also increasing the wattage rating of your
resistor. For instance, attempting to use a single 500 watt power resistor of 2 ohms on a 48 volt battery system (60v
dump), will result in the dissipation of 1800 watts, however the resistor is only rated at 500 watts, and will be
destroyed.
A diversion load is not required for solar only systems.
Please visit our online store for a selection of diversion loads, diodes and rectifiers.