Fast-Stat

Fast-Stat is a brand developed by Nordic Technology Ltd., founded in 2006 and headquartered in Kelowna, British Columbia, Canada. The company was established with a specific mission: to simplify the process of installing and adding HVAC equipment without the need to pull new low-voltage wire. All Fast-Stat products are assembled in-house at the Kelowna facility, which supports consistent quality control and allows Nordic Technology to maintain close oversight of each unit that leaves the production floor.

Nordic Technology holds membership in the Air Conditioning Contractors of America (ACCA) and has received industry recognition for product innovation and design. Fast-Stat products are distributed through supply houses across the United States and Canada, making the lineup accessible to HVAC contractors in a broad range of service markets.

Product Lines

The Fast-Stat lineup available through SupplyHouse falls into two categories: wiring extenders and a common wire accessory. The wiring extender series spans five distinct models, each designed to address a specific conductor shortage scenario encountered during equipment replacements and upgrades.

The Model 1000 (FS1000) adds a single control wire between a thermostat and indoor unit or between an indoor and outdoor unit. The Model 3000 (FS3000) adds two control wires and is configured to automatically activate the G terminal when the Y signal is called, making it well suited for standard air conditioning upgrades over two-conductor cable. The Model 5000 (FS5000) delivers R, C, Y, G, W1, and W2 over a two-wire condenser cable to support heat pump upgrades where the O/B signal is handled separately through the thermostat cable. The Model 7000 (FS7000) provides R, C, G, Y1, Y2, W, and O/B over a four-wire thermostat cable, and Y1, Y2, O/B, and W over a two-wire condenser cable, covering full heat pump control including the reversing valve circuit. The Model 9000 (FS9000) is built for installations where only two wires run between the air handler and the condenser, delivering full heat pump control with defrost board support and compatibility with cool-active reversing valve configurations. The Common Maker (FSCM00) rounds out the lineup by adding a C wire connection to support Wi-Fi and powered thermostats without requiring new wire.

Why Contractors Specify Fast-Stat

The principal reason HVAC technicians reach for Fast-Stat products is labor reduction. Rewiring through finished walls, attics, or long condenser runs adds hours to a job that can otherwise be completed quickly. Fast-Stat wiring extenders allow installers to reuse existing two-wire or four-wire cables, delivering the control signals modern equipment requires over the conductors already in place.

All models are compatible with 24VAC heating and cooling systems and require a Class 2 transformer supplying between 23 and 28VAC, placing them within the operating parameters of standard residential and light commercial HVAC equipment. Signal transmission is entirely wired, generating no radio frequency noise, so multiple units can operate in a single building without causing interference with one another. Product assembly at Nordic Technology's own Kelowna facility reflects direct manufacturing oversight rather than outsourced production. Fast-Stat also maintains a dedicated technical support line at 1-800-775-4750 for field troubleshooting when installers encounter unusual wiring scenarios.

How to Choose Fast-Stat Products

Selecting the right Fast-Stat model begins with counting the conductors in the existing low-voltage cable and mapping the control signals the replacement equipment demands. For jobs that need just one additional wire, the Model 1000 (FS1000) is the appropriate choice. When two additional conductors are needed on either the thermostat or condenser run, the Model 3000 (FS3000) covers that case.

Heat pump upgrades typically call for one of the higher-numbered models. The Model 5000 (FS5000) works well when the condenser cable carries only two conductors and the O/B reversing valve signal can be routed through the thermostat cable. The Model 7000 (FS7000) is the correct selection when both the thermostat cable (four wires) and condenser cable (two wires) must be reused and full heat pump control, including the reversing valve circuit, is required. For A2L refrigerant system installations, the Model 7000 may require an external 24V SPDT relay depending on the sensor type; Fast-Stat technical support can confirm whether that relay is necessary for a specific system. The Model 9000 (FS9000) addresses the scenario where only two wires run to the condenser location and the job requires defrost board support or a cool-active reversing valve.

For Wi-Fi or smart thermostat installations lacking a C wire, the Common Maker (FSCM00) provides that connection without requiring new wire to be pulled. All installations must keep the total connected load below 2 amps and at no more than 30VAC. The sender module for every wiring extender model must be mounted in an uninsulated wall cavity to allow proper heat dissipation during operation.

Frequently Asked Questions

How does a Fast-Stat wiring extender work?

Fast-Stat devices convert incoming 24V AC power into separate positive and negative DC circuits. The sender module transmits DC signals over the existing wire to the receiver, which activates relays based on the voltage readings it detects. A standard multimeter can be used to verify proper signal transmission at any point in the circuit.

What is the maximum cable run length for Fast-Stat wiring extenders?

Fast-Stat wiring extenders are designed to perform reliably over cable runs of under 800 feet. Each device requires its own dedicated communication wire, and since the system produces no radio frequency noise, any number of units can be installed in a single building without signal interference between them.

Can Fast-Stat wiring extenders be installed in an insulated wall?

No. The sender module generates heat during normal operation and must be mounted in an uninsulated wall cavity where heat can dissipate freely. Installation inside insulated walls or inside junction boxes is not a permitted mounting location for the sender.

Are Fast-Stat products compatible with heat pump systems using A2L refrigerants?

All Fast-Stat models are compatible with A2L refrigerant systems. On some Model 7000 (FS7000) installations, an external 24V SPDT relay may be required depending on the sensor configuration. Fast-Stat technical support at 1-800-775-4750 can advise on whether that relay is necessary for a specific system.

What power supply do Fast-Stat wiring extenders require?

All Fast-Stat wiring extender models require a Class 2 transformer supplying between 23 and 28VAC. The total connected load across the system must not exceed 2 amps, and connected loads must operate at no more than 30VAC.