The Carrier HR81LG020 is a genuine Carrier replacement flow switch. A flow switch monitors flow through the system and changes the state of its contacts when flow is established or lost, giving the unit control a proof-of-flow signal before it allows operation to continue.
If the switch fails or sticks, the control may refuse to start the unit or may shut it down on a flow fault even though the system is circulating normally. Replacing it with the correct Carrier part restores a reliable flow-proving signal. Confirm part number HR81LG020 against your equipment's parts list before ordering.
Specifications
| Part Number | HR81LG020 |
|---|---|
| Type | Flow Switch |
| Brand | Carrier |
| UPC | 82252939054 |
| Weight | 2 lbs |