The METROPAC L8148E1299 Aquastat Relay with a 50VA transformer is designed for efficient temperature control in hydronic heating systems. This relay monitors water temperature and activates heating elements as needed, ensuring optimal performance. Constructed from durable materials, it is built to withstand the demands of HVAC applications. The compact design allows for easy installation, making it suitable for both residential and commercial setups. This aquastat relay is essential for maintaining comfortable indoor temperatures.
Residential Comfort/Combustion : Combustion Controls : Aquastats : Aquastats Gas - Multifunction : L8148 : L8148E1299/U
Aquastat Relay, 180 240 F range with 15 degree F fixed differential, low volt/millivolt
Overview
Immersion-type controllers that combine high limit protection with switching relay control of burner and circulator motors.
Features
- High limit opens burner circuit only.
- Select models include transformer and accessory terminals for adding a remote low limit controller.
- Case available for horizontal or vertical mounting.
- Requires a 24 Vac thermostat with heat anticipator set at 0.2A.
- TRADELINE models include well adapter, tube of heat conductive compound and range stops..
Product Specifications
- Hazmat Information
- UN1294 Toluene
- Application
- High Limit
- Dimensions (in.)
- 6 1/8 in. high x 4 5/16 in. wide x 3 1/8 in. deep
- Dimensions (mm)
- 156 mm high x 110 mm wide x 79 mm deep
- Maximum Safe Operating Pressure (psi)
- Immersion Well: 255 psi
- Maximum Safe Operating Pressure (kPa)
- Immersion Well: 1757 kPa
- Temperature Range (F)
- Maximum--150 F with 1.2 A 24 V load; 77 F with 1.4 A 24 V load
- Temperature Range (C)
- Maximum--66 C with 1.2 A 24 V load; 25 C with 1.4 A 24 V load
- Includes
- 50 VA transformer and heat conductive compound.
- Mounting
- Vertical Mount
- Electrical Ratings
- Low Voltage: 0.8 A max. @ 24 Vac; 0.25 A @ 0.25 to 12 Vdc; At Locked Rotor-- 44.4A @ 120 Vac: 22.2A @ 240 Vac
- Frequency
- 60 Hz
- Approvals, Underwriters Laboratories Inc.
- UL Listed: File No. MP466, Vol. 13, Sec. 2, Guide No. MBPR2.
- Approvals, CSA
- Certified: File No. LR95329-1
- Electrical Connections
- Quick-Connect / Screw
- Operating Humidity Range (% RH)
- 0 to 95% RH, non-condensing
- Voltage
- 120 Vac
- Operating Temperature Range (F)
- High Limit-- 180 F to 240 F
- Operating Temperature Range (C)
- High Limit-- 82 C to 116 C
- Differential Temperature (F)
- 15 F fixed
- Switching Action
- SPST: High Limit & Circulator
- Anticipator Setting
- 0.2 A
- Capillary Length (in.)
- 4 1/2 in.
- Insulation Depth (in.)
- 1 1/2 in. to 3 in. less well
- Insulation Depth (mm)
- 38 mm to 76 mm less well
- Capillary Length (mm)
- 114 mm
- Electrical Ratings, Burner
- At Full Load-- Low Voltage: 0.8 A max. @ 24 Vac: Line Voltage: 7.4 A @ 120 Vac: 3.7 A @ 240 Vac; At Locked Rotor-- Line Voltage: 44.4 A @ 120 Vac: 22.7 A @ 240 Vac; Millivolt--0.25 A @ 1/4 to 12 Vdc
- Electrical Ratings, Circulator
- At Full Load-- 7.4 A @ 120 Vac: 3.7 A @ 240 Vac; At Locked Rotor-- 44.4 A @ 120 Vac: 22.2 A @ 240 Vac
