Honeywell Chronotherm Plus Honeywell Thermastat Owners Manuals?

Honeywell thermastat owners manuals? - honeywell chronotherm plus

bought a house, the Honeywell thermostat has THERMASTAT III
former owner no longer in the manual. Ive tryed future websites and various Honeywell, but only THERMASTAT sells new and do not know where I can get the manual for my central heating and air conditioning jproperly.