Honeywell L7224U Manual Del Usaurio

L7224U Oil and Electric Boiler
Electronic Aquastat
APPLICATION
The EnviraCOM™ enabled L7224U Electronic
®
Aquastat Controller provides electronic temperature
sensing in a UL limit-rated controller with a single
sensing probe. The L7224U controls the circulator, oil
or electric burner or contactor, and boiler
temperature.
The L7224U is "Outdoor Temperature Reset" ready,
which is enabled when connected to the
W8735Y1000 wireless or W8735S1000 wired
Outdoor Reset Kits. This option is intended for all
applications except for tankless coil systems for
domestic hot water.
The L7224U replaces the L8124A, L8124C, L7124U,
L7148A, L7248A,C, L7224A,C, and L8148A
controllers and is intended for residential
applications.
The L7224U also complies with 2012 DOE
regulations to ensure efficiency is maximized without
interfering with domestic hot water demands.
IMPORTANT:
Use of Outdoor Temperature Reset on a tank-
less coil application requiring a Low Limit set-
ting may result in limited system
effectiveness and reduced efficiency.
The L7224U provides status and diagnostic
information through an LED display com-
bined with LED lights as well as EnviraCOM
communications enabled thermostats and
diagnostic tools to enhance the diagnostic
process.
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.
®
Controller
INSTALLATION INSTRUCTIONS
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.
Accessories (Ordered Separately):
W8735Y1000 Wireless Outdoor Reset Kit
W8735ER1000 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)
C7089U1006 Outdoor Temperature Sensor (used
with the 50022037-002)
32003971-003 Temperature Sensor (used with
50022037-005)
Sensor (See Table 2).
Sensor Well Clamp 121371AA.
120650 Heat Conductive Compound.
Table 1. Wells for L7224U Controller.
Part Spud Size
Number in. (mm)
123869A 1/2 (12.7) NPT
123870A 3/4 (19.05) NPT 3 (76.2)
Table 2. Sensors for L7224U Controller.
Length in.
Part Number
50001464-001 12 (304.8)
50001464-003 24 (609.6)
50001464-004 36 (914.4)
50001464-005 48 (1219.2)
Insertion Insulation
in. (mm) in. (mm)
3 (76.2) 1-1/2 (38.1)
1-1/2 (38.1)
(mm) Application
Well-mounted
controls
Flush-mounted
controls
69-1720EFS-11