Honeywell L7224U Handleiding

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INSTALLATION INSTRUCTIONS

69-1720EFS-03

L7224U

Oil Electronic Aquastat

®

Controller

APPLICATION

The EnviraCOM™ enabled L7224U Oil Electronic

Aquastat

®

Controller provides electronic temperature

sensing in a UL limit-rated controller with a single

sensing probe. The L7224U controls the circulator, oil

burner and boiler temperature.

The L7224U is “Outdoor Temperature Reset” ready,

which is enabled when connected to the Outdoor Reset

Module. 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.

IMPORTANT:

Use of Outdoor Temperature Reset on a tank-

less coil application requiring a Low Limit setting

may result in limited system effectiveness and

reduced efficiency.

The L7224U provides status and diagnostic

information through an LED display combined

with LED lights as well as EnviraCOM commu-

nications 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, noncondensing.

Approvals:

Underwriters Laboratories Inc. Component Recognized.

Canadian Underwriters Laboratories Inc. Component

Recognized.

Accessories (Ordered Separately):

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.

14,000,485-016 1/4 in. (6.35 mm) diameter, 1-1/4 in.

(31.75 mm) length glass cartridge Fuse, 1 A,

Slow-Blow.

120650 Heat Conductive Compound.

Table 1. Wells 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)

Table 2. Sensors for L7224U Controller.

Part Number

Length in.

(mm)Application

50001464-00112 (304.8)Well-mounted controls

50001464-00218 (457.2)Flush-mounted controls

50001464-00324 (609.6)

50001464-00436 (914.4)

50001464-00548 (1219.2)

Product specificaties