Resideo L8148A1017/U High Limit Aquastat RelayResideo L8148A1017/U High Limit Aquastat Relay
Resideo L8148A1017/U High Limit Aquastat Relay
ResideoSKU: 38092

Resideo L8148A1017/U High Limit Aquastat Relay

$267.79
In stock (33)

The L8148A1017/U is a high-limit-only Aquastat relay for hydronic boiler systems. It provides high-limit protection with relay switching for burner motor control, interrupting the burner circuit at the high-limit setpoint. Rated 120 VAC with a 140-240F operating range and 8F fixed differential. Horizontal mount; accommodates insulation depths of 1-1/2 to 3 in. Rated for 0 to 95% non-condensing relative humidity. Domestic manufacture. Requires professional installation by a licensed HVAC or plumbing technician.

Shipping policy

Orders placed by 2:00pm EST will ship same day, except on holidays.

More Details

Product overview
  • High-limit-only control - interrupts burner circuit exclusively at setpoint; no low-limit or circulator function
  • Operating range: 140-240F with 8F fixed differential
  • 120 VAC supply voltage; horizontal mount only
  • Insulation depth: 1-1/2 to 3 in.
  • Humidity rating: 0-95% non-condensing
Specifications
Manufacturer Part Number L8148A1017/U
UPC 85267055086
Overall Dimensions 5-3/8 in H x 4-1/16 in W x 2-11/16 in D
Material n/a
Domestic or Import Domestic
End Style n/a
Type High Limit
ADA Compliance n/a
Warning Professional installation required
Standards and Approvals UL Listed (models with well): File No. MP466, Guide No. MBPR | CSA Certified: File No. LR1620, Guide No. 400-E-O
Resources
Delivery & Returns

Orders will ship same day if received by 2pm EST.

Upcoming holiday closures: May 25, 2026

All returns are inspected on receipt; credit is issued after condition is confirmed. Credit is issued only for items returned in original, saleable condition after inspection.

FINAL SALE ITEMS ARE NOT ELIGIBLE FOR RETURNS OR EXCHANGES.

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