Roof - Top HVAC and Walk - in Cooler Replacements at Ft . Tuthill County Park

2026-11-03

3 . 1 Site Evaluation Contractor shall : • Field - verify each existing rooftop units , curbs , duct connections , electrical service , and propane supply • Confirm required heating and cooling capacities for each building 3 . 2 . Equipment Furnish and install new packaged rooftop HVAC units for each building , providing : • Propane - fired heating • Electric air conditioning • Factory - installed safety controls • Economizers ( where / if compatible ) • Programmable thermostats or compatible controls Units must meet or exceed current energy efficiency and code requirements . 3 . 3 . Installation • Remove and properly dispose of existing rooftop units • Provide crane and rigging as required • Install new units on existing or replacement curbs • Connect to existing ductwork , electrical , and propane systems • Startup , test , and balance 4 . 0 Walk - In Cooler Refrigeration – Scope of Work 4 . 1 . System Description The walk - in cooler is served by a remote refrigeration system consisting of : • A remote condensing unit ( compressor , condenser coil , fan , controls ) • An evaporator coil and fan inside the walk - in cooler 4 . 2 . Equipment Provide and install : • One ( 1 ) new remote condensing unit • One ( 1 ) new evaporator coil / fan assembly ( if required for compatibility ) • Expansion valve , filter - drier , refrigerant controls , piping , and insulation The system shall be designed to maintain a temperature range of XXXXX ° F 4 . 3 . Installation • Recover and properly dispose of existing refrigerant • Remove and dispose of existing refrigeration equipment • Install new refrigeration components • Pressure test , evacuate , charge , and start up the system • Verify proper cooling performance

Arizona

2026-03-27