HVAC Replacement in San Diego County

2026-11-03

New HVAC Equipment – Minimum Specifications : Contractor shall furnish and install the following Carrier pump split systems : 1 ) One ( 1 ) 5 - ton Carrier heat pump split system 2 ) One ( 1 ) 4 - ton Carrier heat pump split systems 3 ) Minimum Performance and Configuration Requirements : a ) System Type : Air - source heat pump split system b ) Efficiency : Minimum SEER2 14 . 3 and HSPF2 7 . 5 c ) Refrigerant : R - 410A or approved low - GWP alternative d ) Compressor : Scroll - type , high - efficiency e ) Metering Device : TXV f ) Indoor Unit : Matching fan coil with ECM motor g ) Outdoor Unit : Weather - resistant cabinet with sound - dampening h ) Controls : Compatible with existing DDC control panel i ) Condensate Management : Primary and secondary drain pans with overflow protection j ) Electrical : Compatible with existing disconnects and power supply G . Ductwork : Flexible duct connectors at all supply and return connections 1 ) New fan coil units : Contractor shall provide secondary drain pan and connect new copper primary and overflow condensate drains to existing condensate drains terminating above existing mop sink . 2 ) Existing supply air diffuser : Contractor shall measure and record airflows from each diffuser prior to ductwork and send report of airflows to Caltrans Contract Manager . 3 ) New humidifier : Reconnect to existing cold water supply , power connection and drain line . Connect humidifier to existing DDC control panel . 4 ) New dehumidifier : Reconnect existing power and duct connections to existing intake , warm air exhaust , and dehumidified air ducts . Connect dehumidifier to existing DDC control panel . 5 ) Existing DDC control panel to remain .

California

2026-05-10