The City of Caribou (City) is soliciting proposals for upgrading of the heating system at City Hall, located at 25 High Street. The current heating control system involves a mixture of digital and manual Honeywell thermostats. Some zones have separate manual thermostats for night and daytime operation. Some offices have digital thermostats and heat pumps while most of the offices are using baseboard radiant heat with a boiler system. There are seventeen zones in the building. The city would like to upgrade the zone valves and thermostats for the building to improve efficiency of heat delivery. Please see the complete bid package below.