A relay in the timer 23 will then cut out a contact 231 in {TAIL ~ the feeding branch} to {HEAD ~ the compressor} 11 
A relay in the timer 23 will then cut out a contact 231 in { TAIL ~ the feeding branch } to { HEAD ~ the compressor } 11
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH