Honeywell L7224A, L7248A, C, L, installation instructions

Honeywell L7224A,C; L7248A,C,L Oil Electronic Aquastat® Controllers

Honeywell L7224A,C; L7248A,C,L SPECIFICATIONS

Electrical Ratings:
Voltage: 120 Vac, 60 Hz.
Power: 7 VA maximum at 120 Vac plus external loads.
Thermostat current: 100 mA nominal at 24 Vac.
Burner Relay:

7.4 A at 120 Vac Full Load Amperage (FLA);
44.4 A inrush Locked Rotor Amperage (LRA);
Less Ignition Load: 360 VA.

Circulator Relay:

7.4 A at 120 Vac FLA; 44.4 A inrush LRA.
Zone Controller (ZC): 7.4 A at 120 Vac FLA;
44.4 A inrush LRA.

NOTE: All loads combined cannot exceed 2000 VA.

Environmental Ratings:

Temperature: -30 °F to +150 °F (-34 °C to +66 °C).
Humidity: 0 to 95% relative humidity, noncondensing.


Underwriters Laboratories Inc. Component Recognized. Canadian Underwriters Laboratories Inc. Component Recognized.

Honeywell L7224A,C; L7248A,C,L APPLICATION

The L7224A,C and L7248A,C,L 2012 Compliant Oil Electronic Aquastat® Controllers provide electronic temperature sensing in a UL limit-rated control with a
single sensing probe. The L7224A,C and L7248A,C,L control the circulator, oil burner and boiler temperature. The L7224/L7248 is “Outdoor Temperature Reset” ready which is enabled when connected to the W8735S1000 Outdoor Reset Kit. Outdoor Reset with the L7224/L7248 is intended for all applications except for tankless coil systems for domestic hot water. Compliance to 2012 DOE regulation ensures efficiency is maximized without interfering with domestic hot water demand. The L7224A,C and L7248A,C,L replace the L8124A, L8124C, L7124A,C, L7148A and L8148A Controllers.

The L7224A,C and L7248A,C,L series controls provide status and diagnostic information through an LED display combined with LED lights as well as EnviraCOM™ communications enabled thermostats and diagnostic tools to enhance the diagnostic process. L7224/L7248 Aquastat Controllers are intended for use in residential-type applications.

Use of Outdoor Temperature Reset on a tankless coil application requiring a Low Limit setting will result in reduced system effectiveness and efficiency.

Honeywell L7224A,C; L7248A,C,L Accessories:

W8735Y1000 Wireless Outdoor Reset Kit
W873ER1000 Wireless Outdoor Reset Module
C7089R1013 Wireless Outdoor Temperature Sensor (requires W8735ER1000)
W8735S1000 AquaReset™ Outdoor Reset Kit (includes
50022037-002 Outdoor Reset Module and
C7089U1006 Outdoor Temperature Sensor)
W8735S1008 AquaReset™ Domestic Hot Water Kit (includes 50022037-005 Domestic Hot Water Module and 32003971-003 Sensor)
W8735S3000 EnviraCOM™ Alarm Module
C7089U1006 Outdoor Temperature Sensor (used with the 50022037-002)
32003971-003 Temperature Sensor (used with 50022037-005) Sensor (See Table 2).
14,000,485-016 1/4 in. (6.35 mm) diameter, 1-1/4 in. (31.75 mm) long glass cartridge Fuse, 1A, Slow-Blow.
120650 Heat Conductive Compound.
121371AA Sensor Well Clamp.

Readmore and Download Honeywell C, L, L7224A, L7248A Manual PDF Below