Honeywell L7224U Bedienungsanleitung

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INSTALLATION INSTRUCTIONS

69-1720EFS-11

L7224U Oil and Electric Boiler

Electronic Aquastat

®

Controller

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.

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.

Table 2. Sensors for L7224U Controller.

Part

Number

Spud Size

in. (mm)

Insertion

in. (mm)

Insulation

in. (mm)

123869A1/2 (12.7) NPT3 (76.2)1-1/2 (38.1)

123870A3/4 (19.05) NPT3 (76.2)1-1/2 (38.1)

Part Number

Length in.

(mm)Application

50001464-00112 (304.8)Well-mounted

controls

50001464-00324 (609.6)Flush-mounted

controls

50001464-00436 (914.4)

50001464-00548 (1219.2)

Produktspezifikationen