Qmark CDF547 Wall Heater 4kw 3kw 2kw 277V

Product Description

The QMARK CDF547 is a multi-wattage electric resistance wall heater rated at 277 volts with selectable output of 4 kW, 3 kW, or 2 kW. The switchable wattage setting allows a single unit to serve different room-load requirements without stocking multiple heaters. Designed for commercial and light industrial applications, this unit delivers consistent convective or forced-air heat in environments where 277-volt single-phase power is available. Licensed electricians are the primary installers for this class of equipment. At 27 pounds, the CDF547 is a substantial unit suited for permanent wall-mount installation.

The CDF547 is well suited for commercial spaces, warehouses, utility rooms, and similar areas supplied by 277-volt branch circuits, which are common in commercial electrical distribution systems. The multi-wattage design gives the installing electrician flexibility during commissioning to match heater output to the actual heat-loss calculation for the space. It is not intended for standard 120-volt or 240-volt residential branch circuits without confirmed voltage compatibility.

Key Features

• Selectable output: 4 kW, 3 kW, or 2 kW from a single unit
• Rated for 277-volt single-phase commercial power
• Permanent wall-mount construction at 27 pounds
• Reduces stocking complexity with multi-wattage switching
• Suited for commercial and light industrial heating applications

Compatibility

Designed as an OEM-style replacement or direct installation unit for commercial wall heater applications requiring 277-volt electric resistance heating.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. Shut off and lock out the branch circuit breaker before any wiring or mounting work. Verify the supply voltage matches the 277-volt rating before energizing the unit. Do not connect this heater to a circuit voltage other than what the nameplate specifies.

Technical Specifications

• Voltage: 277 volts
• Wattage Options: 4 kW, 3 kW, 2 kW
• Weight: 27 pounds
• UPC: 68536001509

Standard Information

• Brand: QMARK
• Manufacturer Part Number: CDF547