Immersion Type Aquastat controllers for hydronic heating systems
SKU: L4080B1352/U
Immersion Type Aquastat controllers for hydronic heating systems
SKU: L4080B1352/U
Reliability for Hydronic Heating Systems
The High Limit Aquastat Controller® from Resideo is designed to optimize hydronic heating systems — turning off the burner whenever the boiler water temperature rises to the adjustable set point.
Requires Pro for installation
Immersion Type Aquastat controllers for hydronic heating systems
SKU: L4080B1352/U
Resources
| Application | Immersion Type Controllers for Hydronic Heating Systems |
|---|---|
| Approvals and Standards | UL Listed: models with well, File No. MP466, Guide No. MBPR, AGA Design Certified: Test Report 2311B |
| Color | Gray |
| Compatible With | Hot Water, Hydronic Heating Systems |
| Includes | Siphon Loop |
| Mounting Type | Surface mount through base of case |
| Differential Temperature | 8 F, 4.4 C |
| Operating Temperature (Min) | 100 °F, 38 °C |
| Operating Temperature (Max) | 200 °F, 93 °C |
| Electrical Ratings at Full Load | 8A @ 120 V AC, 4A @ 240 V AC |
| Electrical Ratings at Locked Rotor | 48A @ 120 V AC, 24A @ 240 V AC |
| Electrical Ratings Millivolt | 0.25 A @ 0.25 to 12 Vdc |
| Element Insertion Length | 3 in., 76.2 mm |
| Product Height | 3.88 in |
| Product Length | 2.5 in |
| Product Width | 2 in |
| Hazmat Information | UN 1294, TOLUENE, 3, II |
This product must be installed by a qualified/licensed contractor and set up with properly calibrated test equipment. Failure to have the installation performed by a qualified professional could result in substantial property damage, and even severe personal injury or death, and Resideo will not be responsible for any damages or injuries resulting from not observing this warning.
Product Overview
Automatic Burner Shutoff
The High Limit Aquastat Controller from Resideo is ideal for hydronic heating systems turning off the burner whenever the boiler water temperature rises to the adjustable set point—to optimize safety.
This controller is 1 in. x 1 in. x 1 in. and is rated at 100-200 degrees F with an 8 degree F fixed differential.
Features include:
- Immersion type controller
- Adjustable set point
- Models available for immersion wells or direct immersion
- Insertion depth is 1 1/2 to 3 in
- Models available with second limit switch to shut off all gas to the burner
- Liquid fill in sensing element expands as the boiler temperature rises
- At the set point temperature, a diaphragm-actuated snap switch breaks the power supply to the burner primary control
- Includes a siphon loop
