Maintenance of HVAC and refrigeration systems; Maintenance, repair, and installation of HVAC systems; Heating contractor services; Heating equipment installation and repair; Installation, repair and maintenance of heating equipment; Maintenance and repair of heating installations; Heating furnace installation and repair; Air conditioning apparatus installation and repair; Air conditioning contractor services; Installation and repair of air conditioning apparatus; Repair or maintenance of air-...

Ventilation air-conditioning apparatus for heating, namely, HVAC units; Fans for HVAC units; Solar thermal panels, namely, solar heat collection panels; Solar energy collectors for heating; Evacuated heat pipe solar collectors; heat exchangers not being parts of machines; Solar thermal collectors for heating; Heat regenerators in the nature of heat exchangers not being parts of machines; Heat recovery apparatus, namely, heat recovery ventilators; Heat accumulators; Heat generators; Heat excha...

Supermarket HVAC-R System control

Supermarket HVAC-R System control