4. Installation
This product may only be installed by a qualified electrical engineer.
4.1. Location
The product must be installed in a dry and well-ventilated area, as close as possible to the batteries. There should be a clear
space of at least 10 cm around the appliance for cooling.
Excessively high ambient temperature will result in the following:
• Reduced service life.
• Reduced charging current.
• Reduced peak capacity, or shutdown of the inverter.
Never position the appliance directly above the batteries.
The MultiPlus-II is suitable for wall mounting. A solid surface, suitable for the weight and dimensions of the product must be
available (e.g., concrete, or masonry). For mounting purposes, a hook and two holes are provided at the back of the casing (see
appendix G).
The interior of the product must remain accessible after installation.
Try and keep the distance between the product and the battery to a minimum in order to minimize cable voltage losses.
For safety purposes, this product should be installed in a heat-resistant environment. You should prevent the
presence of e.g. chemicals, synthetic components, curtains or other textiles, etc., in the immediate vicinity.
Each system requires a method of disconnecting the AC and DC circuits. If the overcurrent protection device
is a circuit breaker, it will also serve as the disconnect. If fuses are used, separate disconnect switches will be
needed between the source and the fuses.
To reduce the risk of fire, do not connect to an ac load center (circuit breaker panel) having multiwire branch
circuits connected.
CAUTION – To reduce risk of injury, charge only Lead Acid or LIFEPO4 type rechargeable batteries. Other
types of batteries may burst causing personal injury and damage
Use of an attachment not recommended or sold by the marine unit manufacturer may result in a risk of fire,
electric shock, or injury to persons
MultiPlus-II 48V 3kVA 120V
Page 10 Installation
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