Nortek Global Hvac C75BAM03642C-B Cased Coil 36-42k Btu

Product Description

The NORTEK GLOBAL HVAC C75BAM03642C-B is a cased vertical A-coil evaporator designed for residential split-system air conditioning and heat pump applications using R454B refrigerant. The coil ships factory-installed with a piston metering device, making it a ready-to-install solution for systems in the 36,000 to 42,000 BTU/h capacity range. Sized for B-cabinet width at 17.5 inches, it fits over standard upflow and upflow-horizontal furnace platforms. Licensed HVAC technicians install this coil as the indoor heat-transfer component responsible for absorbing heat from return air and transferring that energy to the refrigerant circuit.

This coil is suited for residential new-construction and replacement installations where a vertical cased coil configuration is required. The B-cabinet footprint targets standard-width air handler and furnace combinations common in single-family and light-commercial construction. Its compatibility with R454B, a lower global-warming-potential refrigerant, makes it appropriate for installations subject to updated environmental regulations governing refrigerant selection. The factory-installed piston provides a fixed metering orifice sized to the rated capacity range, reducing field assembly steps during installation.

Key Features

• R454B refrigerant compatible for compliance with current low-GWP refrigerant requirements
• Vertical cased A-coil configuration fits upflow and upflow-horizontal furnace installations
• Factory-installed piston metering device included, no field TXV assembly required
• Rated for 36,000 to 42,000 BTU/h capacity range
• B-cabinet width at 17.5 inches for standard residential furnace and air handler pairing

Compatibility

Designed as an OEM-style cased evaporator coil for residential split-system cooling and heat pump applications requiring a B-cabinet vertical coil with R454B refrigerant and a piston metering device in the 36,000 to 42,000 BTU/h range.

Installation Notes

Installation must be performed by an EPA Section 608 certified HVAC technician qualified to handle refrigerants. Disconnect and lock out all electrical power to the air handler or furnace before coil installation, and close the service valves on the condensing unit before opening any refrigerant lines. Verify the existing duct plenum and cabinet opening dimensions match the B-cabinet footprint before mounting. Follow local mechanical codes and the manufacturer installation instructions for drain pan connection, condensate line pitch, and refrigerant line set sizing.

Technical Specifications

• Refrigerant Type: R454B
• Capacity Range: 36000 to 42000 BTU/h
• Cabinet Size: B Cabinet
• Cabinet Width: 17.5 inches
• Coil Orientation: Vertical
• Metering Device: Piston (factory installed)
• Coil Style: Cased A-Coil

Standard Information

• Brand: NORTEK GLOBAL HVAC
• Manufacturer Part Number: C75BAM03642C-B