[Xymon] Please clarify: http yellow when delayred is set? Or, what makes http yellow?

I have this default set: 0.0.0.0 .default. # DOWNTIME=0:0000:0300 delayred=http:10

and servers that are monitoring three URL's like so:

10.1.2.3 web1.example.com # CLASS:webzone ssh apache http://web1.example.com/url1.htm http://web1.example.com/url2.cfm http://web1.example.com/url3.cfm

What I'm seeing is, with one URL going red with a timeout after 22 seconds, the http test is going YELLOW and then going RED ten minutes later. Does delayred turn the test yellow? If not, why is this test turning yellow? We want it to be RED.

What exactly determines whether an http test is red or yellow?

thanks Betsy