Honeywell L8100 Aquastat® Controller
L8100A,B, and C are immersion type controllers for regulating and limiting the tank temperature in water heaters. As the water temperature rises past the setpoint, the controller switches off the gas valve.
• Regulates temperature and provides energy cutoff (ECO) action on a temperature rise past the setpoint.
• Includes a second sensing element that senses average water temperature to minimize stacking.
• Fluid-filled element operates Micro Switch® SPST snap-acting switch.
• ECO switch interrupts the thermocouple circuit or main valve before tank reaches 210 F (99 C) maximum temperature.
• Includes factory-installed immersion well on controller.
• Internal adjustment screw.
• Special switch terminal provides three-wire hookup from Aquastat® controller to gas valve.
Select a link under the "item" tab below to order.
| Cat # | Includes | Capillary Length | Mounting | Bulb Size | Switching Action | Insulation Depth | Application: | Differential Temperature |
| L8100B1037 | — | 42 in. | Immersion Well | 3/8 in. | SPST, contacts break on temperature rise. | Controller well: 2 1/4 in. remote well: 1 1/2 or 2 1/2 in. | High Limit | Controller: 5 F, fixed.Energy Cutoff Switch: 20 F, fixed. |
| L8100B1094 | Two zinc plated wells and one well clamp for remote well. | 54 in. | Immersion Well | 3/8 in. | SPST, contacts break on temperature rise. | Controller well: 2 1/4 in. remote well: 1 1/2 or 2 1/2 in. | High Limit | Controller: 5 F, fixed.Energy Cutoff Switch: 20 F, fixed. |
| L8100B1128 | — | 39 in. | Immersion Well | 3/8 in. | SPST, contacts break on temperature rise. | 1/2 in. | High Limit | Controller: 5 F, fixed.Energy Cutoff Switch: 20 F, fixed. |
| Case Dimensions: | 5 5/8 in. high x 2 in. wide x 2 1/8 in. deep (136 mm high x 51 mm wide x 54 mm deep) |
||
| Electrical Ratings: | 2A maximum at 24 VAC | ||
| Temperature Rating (ECO) Energy Cutoff: | 190 F | ||
| Maximum Ambient Temperature: | Maximum Tank: 210 F (Maximum Tank: 99 C) |
||
| Operating Temperature Range: | 100 F to 180 F; (38 C to 82 C) | ||
|
Approvals: |
|||
|
American Gas Association IAS: |
Design Certified: Report Number 23- 11B | ||
|
Canadian Standards Association: |
------ | ||
|
Underwriters Laboratories Inc. |
UL Component Recognized: File No. MP466, Guide No. MBPR2 | ||
