Brochure

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Aquastat
®
Controllers
L7224U Oil Electronic Aquastat Controller
Universally compatible and easy to install the L7224U allows for quick
diagnostics updates through an easy-to-read LED display enhanced
with a system of flashing lights. It’s like an express checkout service
for every installation. For quality circulator, oil burner and boiler
control for today’s systems and tomorrow’s, the L7224U Aquastat is a
state-of-the-art solution. Make the switch from electromechanical to
electronic with the universally compatible L7224U.
• Complies with 2012 Department of Energy Standards
• Diagnostic updates through easy-to-read LED displays
• ± 2°F accuracy and faster response times
• Adjustable high- and low-limit differential
• Outdoor reset functionality available with W8735S1000 and
W8735Y1000
• Provides multizone control
• Thermowell horizontal or vertical and flush mounting
• EnviraCOM™ communications enabled
• Compatible with W8735S3000 Alarm Module
Voltage: 120 Vac
Power Consumption: 7 VA
Frequency: 60 Hz
Temperature Range: -30°F to 150°F (-34°C to 66°C)
Operating Temperature Range:
High Limit – 130°F to 240°F (54°C to 116°C);
Low Limit – 110°F to 220°F (43°C to 104°C)
Dimensions: 7 1/8 in. high x 4 1/4 in. wide x 2 5/8 in. deep (181 mm
high x 109 mm wide x 67 mm deep)
Operating Humidity Range (% RH): 0 to 95% RH, non-condensing
Approvals, Underwriters Laboratories Inc.: Recognized
Accessories:
120650/U – Heat Conductive Grease 1/2 oz.
121371AA/U – Well clamp assembly with clamp capillary 21371 (1)
screws 804644 and nuts 60156
123869A/U – Copper. Bulb size: 3/8 in. x 3 in. (10 mm x 76 mm). Well
size: 3 in. (76 mm) insertion, 1 1/2 in. (38 mm) insulation, 1/2 in.
NPT.
123870A/U – Copper. Bulb size: 3/8 in. x 3 in. (10 mm x 76 mm). Well
size: 3 in. (76 mm) insertion, 1 1/2 in. (38 mm) insulation, 3/4 in.
NPT.
C7089R1013/U – Senses outdoor temperature and humidity to
display on RedLINK
®
enabled thermostats and accessories.
C7089U1006/U – Outdoor Sensor used to measure the outdoor
temperature for use with VisionPro and VisionPRO IAQ.
W8735ER1000/U – Wireless Outdoor Reset Module for use with
L7224/L7248 series 2.
W8735S1000/U – Outdoor Reset Module for use with L7224/L7248
series 2. Includes outdoor sensor.
W8735S1008/U – Domestic Hot Water Module for use with L7224/
L7248 series 2. Includes water pipe temperature sensor.
W8735Y1000/U – Outdoor Reset Module for use with L7224/L7248
series 2. Includes outdoor sensor C7089R1013.
Material Number Application Differential Temperature Mounting Electrical Ratings, Burner Electrical Ratings, Circulator
L7224U1002/U Oil Aquastat Controller High limit : 5-20°F adj.;
low limit: 10-25°F adj.
Well mount, horizontal or
vertical position, or flush
mounted remote from the
well.
At Full Load – 7.4 A @ 120 Vac;
At Locked Rotor – 44.4 A inrush
At Full Load – 7.4 A @ 120 Vac;
At Locked Rotor – 44.4 A inrush