Williams 9940 Converter
The Williams 9940 Hard-Wire Converter is a critical component for integrating modern electronic thermostats with older 24V furnace systems that lack a dedicated C-wire. This HVAC power interface converts 115V line voltage into the 24V supply necessary to power digital controls, ensuring stable operation without battery drain. Designed specifically for compatibility with Williams furnace models and wall heaters, this 10VA rated converter facilitates a reliable bridge between the appliance and low-voltage control circuits. It eliminates common issues like ghosting or intermittent power cycles often encountered when retrofitting smart controls onto legacy heating equipment. The compact housing allows for discrete mounting inside the furnace cabinet, maintaining a professional installation profile while ensuring that inductive loads do not interfere with sensitive electronics.
Technical Specifications & Benefits
- Input Voltage: Standard 115V-120V AC input for direct integration into the appliance primary circuit.
- Output Rating: Provides a steady 24V AC at 10VA, sufficient for driving high-efficiency solid-state thermostats.
- Terminal Configuration: Features simplified lead wires for fast hard-wire installation into existing junction boxes.
- Compatibility: Engineered for use with Williams gas-fired heaters, ensuring precise voltage stabilization for electronic ignition systems.
- Application: Essential for C-wire furnace retrofits where existing thermostat wiring lacks sufficient conductors.
Common Installation Questions
Will this converter allow me to use a Wi-Fi thermostat on my Williams floor furnace?
Yes. The 9940 provides the secondary side 24V neutral (C-wire) required for power-robbing or Wi-Fi enabled thermostats that do not rely solely on batteries.
Can I mount this inside the 9940 heater cabinet?
Yes, this unit is designed to be hard-wired within the electrical compartment to maintain a secure connection to the primary power source.
Does this replace a standard 24V transformer?
It functions as a 120V to 24V step-down HVAC transformer, specifically configured for internal hard-wire applications rather than plug-in use.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $22.68
-65%$22.68
$7.94Williams 9940 Converter
The Williams 9940 Hard-Wire Converter is a critical component for integrating modern electronic thermostats with older 24V furnace systems that lack a dedicated C-wire. This HVAC power interface converts 115V line voltage into the 24V supply necessary to power digital controls, ensuring stable operation without battery drain. Designed specifically for compatibility with Williams furnace models and wall heaters, this 10VA rated converter facilitates a reliable bridge between the appliance and low-voltage control circuits. It eliminates common issues like ghosting or intermittent power cycles often encountered when retrofitting smart controls onto legacy heating equipment. The compact housing allows for discrete mounting inside the furnace cabinet, maintaining a professional installation profile while ensuring that inductive loads do not interfere with sensitive electronics.
Technical Specifications & Benefits
- Input Voltage: Standard 115V-120V AC input for direct integration into the appliance primary circuit.
- Output Rating: Provides a steady 24V AC at 10VA, sufficient for driving high-efficiency solid-state thermostats.
- Terminal Configuration: Features simplified lead wires for fast hard-wire installation into existing junction boxes.
- Compatibility: Engineered for use with Williams gas-fired heaters, ensuring precise voltage stabilization for electronic ignition systems.
- Application: Essential for C-wire furnace retrofits where existing thermostat wiring lacks sufficient conductors.
Common Installation Questions
Will this converter allow me to use a Wi-Fi thermostat on my Williams floor furnace?
Yes. The 9940 provides the secondary side 24V neutral (C-wire) required for power-robbing or Wi-Fi enabled thermostats that do not rely solely on batteries.
Can I mount this inside the 9940 heater cabinet?
Yes, this unit is designed to be hard-wired within the electrical compartment to maintain a secure connection to the primary power source.
Does this replace a standard 24V transformer?
It functions as a 120V to 24V step-down HVAC transformer, specifically configured for internal hard-wire applications rather than plug-in use.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
The Williams 9940 Hard-Wire Converter is a critical component for integrating modern electronic thermostats with older 24V furnace systems that lack a dedicated C-wire. This HVAC power interface converts 115V line voltage into the 24V supply necessary to power digital controls, ensuring stable operation without battery drain. Designed specifically for compatibility with Williams furnace models and wall heaters, this 10VA rated converter facilitates a reliable bridge between the appliance and low-voltage control circuits. It eliminates common issues like ghosting or intermittent power cycles often encountered when retrofitting smart controls onto legacy heating equipment. The compact housing allows for discrete mounting inside the furnace cabinet, maintaining a professional installation profile while ensuring that inductive loads do not interfere with sensitive electronics.
Technical Specifications & Benefits
- Input Voltage: Standard 115V-120V AC input for direct integration into the appliance primary circuit.
- Output Rating: Provides a steady 24V AC at 10VA, sufficient for driving high-efficiency solid-state thermostats.
- Terminal Configuration: Features simplified lead wires for fast hard-wire installation into existing junction boxes.
- Compatibility: Engineered for use with Williams gas-fired heaters, ensuring precise voltage stabilization for electronic ignition systems.
- Application: Essential for C-wire furnace retrofits where existing thermostat wiring lacks sufficient conductors.
Common Installation Questions
Will this converter allow me to use a Wi-Fi thermostat on my Williams floor furnace?
Yes. The 9940 provides the secondary side 24V neutral (C-wire) required for power-robbing or Wi-Fi enabled thermostats that do not rely solely on batteries.
Can I mount this inside the 9940 heater cabinet?
Yes, this unit is designed to be hard-wired within the electrical compartment to maintain a secure connection to the primary power source.
Does this replace a standard 24V transformer?
It functions as a 120V to 24V step-down HVAC transformer, specifically configured for internal hard-wire applications rather than plug-in use.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
