CARRIER Rollout Switch: Mfr Part # HH18HA449
CARRIER Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Rollout Switch.
SKU 3G-OTH-81693
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
Need installation or engineering help?
Ask a question
Product Description
CARRIER Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Rollout Switch.
Frequently Asked Questions
What is a Carrier rollout switch used for?
A Carrier rollout switch is a safety device that monitors burner flame rollout in gas-fired HVAC equipment. It shuts down the system if flames escape the combustion chamber, preventing fire hazards and equipment damage. This HH18HA449 model is a direct replacement for Carrier furnaces and boilers.
What are the specifications of the Carrier HH18HA449 rollout switch?
The Carrier HH18HA449 is a rollout switch with manufacturer part number HH18HA449. It is designed as a replacement HVACR control for Carrier gas-fired systems. The switch interrupts power to the gas valve when abnormal flame rollout is detected, ensuring safe operation.
Where to buy Carrier HH18HA449 rollout switch worldwide?
You can source the Carrier HH18HA449 rollout switch through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this replacement part.
How to install a Carrier rollout switch?
To install a Carrier rollout switch, first disconnect power and gas supply. Remove the old switch, noting wire connections. Mount the new HH18HA449 switch in the same location, reconnect wires per the wiring diagram, and restore power. Test for proper operation before returning the system to service.
Used in
Common applications for CARRIERCARRIER Products
3G Electric supplies CARRIER replacement hvacr controls, switches & thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
