Honeywell
Honeywell L8148A1017 Immersion-type Controller
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UPC: 85267055086
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Compact, reliable control for hydronic systems — the Honeywell L8148A1017 combines a high limit safety shutoff with relay control for burner and circulator motors. Designed as an immersion-type controller, it protects boilers while delivering precise, dependable switching with an 8°F fixed differential.
Works with a 24V thermostat and includes an internal transformer to power the low-voltage control circuit, simplifying installation and integration. UL listed and engineered for horizontal or vertical mounting, this aquastat gives professional-grade protection and straightforward operation for residential and light-commercial systems.
Choose the L8148A1017 when you need trusted high-limit protection, clear electrical ratings, and a compact immersion controller that fits common wells and piping configurations. Built to industry standards and ready for reliable day-to-day performance.
Order now to add a robust safety layer to your hydronic setup and ensure precise temperature control with proven Honeywell quality.
| Model | Honeywell L8148A1017 |
| Product Dimensions | 5 x 4.6 x 6.4 inches |
| Used with | 24V thermostat |
| Includes | Transformer for low-voltage control circuit |
| Operating Range, High Limit | 140°F to 240°F |
| Differential Temperature | 8°F fixed |
| Setpoint Temperature Range | 240°F |
| Switching Action | SPST: High Limit & Circulator |
| Anticipator Setting | 0.2A |
| Max Safe Operating Pressure (Immersion Well) | 255 psi |
| Voltage / Frequency | 120V, 60Hz |
| Electrical Ratings (burner AFL) | 7.4 A @ 120 Vac; 3.7 A @ 240 Vac |
| Electrical Ratings (burner ALR) | 44.4 A @ 120 Vac; 22.7 A @ 240 Vac |
| Electrical Ratings (burner millivolt) | 0.25 A @ 1/4 to 12 Vdc |
| Electrical Ratings (circulator AFL) | 7.4 A @ 120 Vac; 3.7 A @ 240 Vac |
| Electrical Ratings (circulator ALR) | 44.4 A @ 120 Vac; 22.2 A @ 240 Vac |
| Capillary Length | 4-1/2" |
| Dimensions | 4-5/16" H × 6-1/8" W × 3-1/8" D |
| Insulation Depth | 1-1/2" to 3" less well |
| Mounting | Horizontal (case available for horizontal or vertical mounting) |
| Operating Humidity Range | 0 to 95% RH, non-condensing |
| Maximum Ambient Temperature | 150°F with 1.2 A 24 V load; 77°F with 1.4 A 24 V load |
| Electrical Connections | Quick-Connect / Screw |
| Approvals | UL Listed (File No. MP466) and CSA Certified (File No. LR1620) |
| Tradeline | Tradeline Value |