From the inverter manual, installation:
4.1. Location
The product must be installed in a dry and well-ventilated area, as close as possible to the batteries. T
here should be a clear
space of at least 10 cm around the appliance for cooling.
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.
From the MPPT manual, installation:
4.1. Mounting
Mount the solar charger vertically on a non-flammable substrate, with the electrical terminals facing downwards.
By having your MPPT on a horizontal surface, you have essentially disabled it's ability to cool itself.
Sorry to be a buzzkill. If you paid someone to install this, they are incompetent. If an alleged solar professional instructed you to mount them this way, they are incompetent. If this is your doing, then it's just a friendly reminder to RTFM.
From the inverter manual, installation:
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.
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.
From the MPPT manual, installation:
4.1. Mounting Mount the solar charger vertically on a non-flammable substrate, with the electrical terminals facing downwards.
By having your MPPT on a horizontal surface, you have essentially disabled it's ability to cool itself.
Sorry to be a buzzkill. If you paid someone to install this, they are incompetent. If an alleged solar professional instructed you to mount them this way, they are incompetent. If this is your doing, then it's just a friendly reminder to RTFM.
While you did quote the Victron manual correctly, I have been researching this particular inverter, and all the Victron Multi-Plus inverters for a while. I had plenty of time to read and watch RV installs as I ordered mine May 12 and Just got it.