Honeywell 84204 Thermostat Wire 18 Awg 5 Conductor 250 Ft

Product Description

The HONEYWELL 84204 is an 18 AWG, 5-conductor thermostat wire cable supplied on a 250-foot spool. It features bare copper conductors with PVC insulation and a PVC outer jacket, making it a reliable choice for low-voltage control wiring in residential and light commercial HVAC systems. Rated CL2 and approved by both UL and ETL, this cable meets standard requirements for in-wall and concealed wiring installations. The 5-conductor configuration supports multi-stage heating and cooling systems, heat pumps, and systems requiring a common wire. HVAC technicians and installers rely on this cable for clean, code-compliant thermostat runs.

This thermostat cable is used in low-voltage control wiring between thermostats, air handlers, furnaces, heat pumps, and zone controllers. The 250-foot spool length is suited for new construction installs, retrofits, and service runs where longer cable pulls are needed. The CL2 rating permits use in residential branch-circuit wiring applications. The 5-conductor layout accommodates common wiring configurations including systems with reversing valves, auxiliary heat, and dedicated common terminals.

Key Features

• 18 AWG bare copper conductors for reliable low-voltage signal transmission
• 5 conductors support multi-stage and heat pump thermostat wiring configurations
• CL2 rated for in-wall and concealed residential wiring applications
• PVC insulation and PVC jacket provide durability and flexibility
• UL and ETL listed for compliance with standard installation codes
• 250-foot spool reduces mid-run splices on longer cable pulls

Compatibility

Designed as a standard CL2 thermostat control cable compatible with low-voltage HVAC control systems requiring 18 AWG 5-conductor thermostat wire.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified electrician. Power down the HVAC system at the disconnect and set the thermostat to the off position before pulling or terminating cable. Route and secure wiring in accordance with NEC Article 725 requirements for Class 2 low-voltage circuits. Avoid sharp bends or stapling through the cable jacket, as damage to conductors can cause intermittent control faults.

Technical Specifications

• Conductor Material: Bare Copper
• Conductor Size: 18 AWG
• Number of Conductors: 5
• Cable Type: CL2
• Insulation Material: PVC
• Jacket Material: PVC
• Length: 250 feet
• Package Type: Spool
• Temperature Rating: -20 to 60 degrees F
• Weight: 34 pounds
• Approvals: UL, ETL

Standard Information

• Brand: HONEYWELL
• Manufacturer Part Number: 84204