Pre-Load Logo only on to homepage

if you mean that rotating preloader you can try this in your quick css:

.home .av-siteloader {
    border: none !important;
    content: url(/wp-content/uploads/alternative-image.png);   /***  might be a svg file too ***/
    width: 150px;
    height: 150px;
}

if you are referring to the logo above the rotating image:

.home .av-preloading-logo {
    content: url(/wp-content/uploads/alternative-image.png); 
    width: 450px;
}

dimensions you had to test yourself.

ok – now i understand BUT
even if you could load the script and styles only for home page:

function front_page_preloader_script() {
    if( is_front_page() || is_home() ){
        wp_enqueue_script( 'avia-siteloader-js', get_template_directory_uri().'/js/avia-snippet-site-preloader.js', array('avia-default'), $vn, true, false);
        wp_enqueue_style( 'avia-siteloader', get_template_directory_uri().'/css/avia-snippet-site-preloader.css', array('avia-layout'), $vn, 'screen', false);
    }
}
add_action( 'wp_enqueue_scripts', 'front_page_preloader_script' );

in functions-enfold.php there is still that line 20:

$class = avia_get_option( 'preloader_transitions' ) != 'disabled' ? 'av-transition-enabled' : '';

because it is in a Pluggable Function ( avia_preload_screen ) we could change that in child-theme functions.php.
and we had to change some entries in header.php
but even if we could do that – the preloader will also be shown if you leave the home page …

_________________________

So my quick and dirty way is:
Set in Enfold Options the Preloader and do this to quick css:

#top:not(.home) .av-siteloader-wrap {
    display: none !important
}