The Warren Technology CRR9-18 is an 18-second time delay with built-in AC to DC rectifier function for compatible HVAC relay, electric heat, and fan control applications. It helps convert AC control voltage to DC while adding an 18-second delay for proper control sequencing.
This part is commonly used with HD1-028D-A30PM2E relay applications and related Warren electric heat control setups. Depending on the supplier, it may be listed as a time delay rectifier, time delay with rectifier, fan control, or AC to DC rectifier with time delay.
Features
• Warren Technology CRR9-18
• 18-second built-in time delay
• AC to DC rectifier function
• Used in HVAC relay, electric heat, and fan control circuits
• Used with compatible HD1-028D-A30PM2E relay applications
• 0.188 quick-connect terminals
• Helps support delayed relay or fan control sequencing
• Compact replacement control component for HVAC service work
Important Note
CRR9-18 should not be assumed interchangeable with CRR8-18. The CRR9 series is tied to HD1-028D-A30PM2E style relay applications, while the CRR8 series is tied to T92P7D22-28 relay applications. Warren also notes that the HD1-028D relay is often sold with CRR9-5, CRR9-9, or CRR9-18 AC to DC rectifiers.
