Specifications include, but are not limited to: A firm fixed price contract, from a qualified HVAC service contractor to provide bi-annual HVAC preventative maintenance and repair services at four (4) County E-911 communication transceiver sites located within the County. The Contractor shall furnish and deliver all labor, tools, materials, supervision and equipment to perform bi-annual preventive maintenance on a total of eight (8) Marviar (AVP60ACA05CU-1000-GI) heat pump systems, as well as perform other various HVAC maintenance/repair services on an “as needed” basis when requested to do so by the County at four (4) County owned communication sites, to include but not limited to checking all electrical components, cleaning coils, testing all safeties, refrigerant pressure and temperatures.