Retrieving specific post type from different wp database

Hi all,
I have 2 wp installation with 2 database on single server.
I’d like to query database1 from wp2 just for retrieving post marked as ‘post_type’=> ‘appuntamenti’.

How can I modify following code?
global $wp_query; $maxnum = $wp_query->found_posts; is querying db2 instead of db1.

<?php /*<a target="_blank" href="https://cblive.it/wp/wp-content/uploads/2014/05/codice_autoregolamentazione.pdf"><img src="https://cblive.it/wp/wp-content/uploads/2014/05/codiceBtn.png" /></a>
*/ ?><div id="appuntamenti_widget">
    <h3><a href="/notizie-molise/">Notizie dal Molise</a></h3>
    <div class="content">
        <?php
                query_posts(array(

                    'post_type'=> 'appuntamenti',
                    'posts_per_page'=>10
                ));
            while(have_posts()) : the_post();
            global $wp_query; $maxnum = $wp_query->found_posts;
         ?>

         <div id="featured-<?php the_ID();?>">

            <h2 class="entry-title">
                <a href="<?php the_permalink(); ?>" title="<?php printf( esc_attr__( 'Permalink to %s', 'themejunkie' ), the_title_attribute( 'echo=0' ) ); ?>" rel="bookmark"><?php the_title(); ?> <?php the_post_thumbnail(featured-thumb); ?></a>
            </h2>
        </div>

        <?php endwhile; wp_reset_query(); ?>
    </div>
</div>

Any help is greatly appreciated.
Thank you