resideo Honeywell Home Aquastat L7224A Instrucciones De Instalación

L7224A,C; L7248A,C,L
Oil and Electric Boiler
Electronic Aquastat
APPLICATION
The L7224A,C and L7248A,C,L 2012 Compliant
®
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 or electric burner or
contactor, and boiler temperature. The L7224/L7248
is "Outdoor Temperature Reset" ready which is
enabled when connected to the W8735Y1000
wireless or W8735S1000 wired 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.
Operation of this control may delay the burner operation while the residual heat is
circulated out of the boiler.
NOTE: This operation may be different than earlier electronic Aquastat
revisions which did not implement thermal purge.
2012 DOE Compliance and Operation
®
Controllers
INSTALLATION INSTRUCTIONS
IMPORTANT
Use of Outdoor Temperature Reset on a tank-
less coil application requiring a Low Limit set-
ting will result in reduced system
effectiveness and efficiency.
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, noncondens-
ing.
Approvals:
Underwriters Laboratories Inc. Component Recog-
nized.
Canadian Underwriters Laboratories Inc. Component
Recognized.
®
68-0281EFS-09