Description
Nordyne 620825R Control Transformer Overview
The Nordyne 620825R is an OEM replacement control transformer engineered for reliable low-voltage control circuit operation in Nordyne heating and cooling systems. Delivering a 24V secondary output from a 115V primary supply at a 20VA rating, this transformer provides the stable, consistent power needed to operate thermostats, contactors, relays, and other 24V control components.
Key Specifications
- SKU: 620825R
- Brand: Nordyne
- Primary Voltage: 115V
- Secondary Voltage: 24V
- VA Rating: 20VA
- Application: Control circuit / low-voltage HVAC systems
- Type: Step-down control transformer
Features & Benefits
- OEM Nordyne replacement part for direct compatibility
- Steps 115V primary power down to a clean 24V secondary output
- 20VA capacity supports standard HVAC control circuit loads
- Designed for use in Nordyne furnaces, air handlers, and related equipment
- Helps maintain reliable thermostat and control board operation
- Replaces a failed or degraded transformer to restore system function quickly
Application
This transformer is a direct OEM replacement for compatible Nordyne equipment. It is commonly used to power 24V control circuits including thermostat wiring, relay coils, and contactor coils. Always verify compatibility with your specific Nordyne model before installation.







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