Honeywell L7224A,C - Manual

Honeywell L7224A,C

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Table of Contents:

  • Page 2 – INSTALLATION; WARNING; Mounting
  • Page 3 – New Installation; Flush-Mounted Aquastat
  • Page 4 – Replacement Sensor Installation; Fuse; WIRING; OPERATION; General
  • Page 5 – Adjusting Settings
  • Page 7 – CHECKOUT
  • Page 17 – NOTICE D'INSTALLATION; Régulateurs à mazout Aquastat; APPLICATION; CARACTÉRISTIQUES; Fonctionnement et conformité à la réglementation 2012 du
  • Page 18 – AVERTISSEMENT; Montage
  • Page 19 – Nouvelle installation
  • Page 20 – Installation du capteur de
  • Page 21 – Fusible; CÂBLAGE; FONCTIONNEMENT; Général
  • Page 35 – INSTRUCCIONES DE INSTALACIÓN; Controladores electrónicos para; APLICACIÓN; ESPECIFICACIONES; Cumplimiento y funcionamiento de acuerdo con el DOE 2012
  • Page 36 – INSTALACIÓN; ADVERTENCIA; Montaje
  • Page 37 – Instalación nueva
  • Page 39 – CABLEADO; FUNCIONAMIENTO
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INSTALLATION INSTRUCTIONS

68-0281EFS-05

L7224A,C; L7248A,C,L

Oil Electronic
Aquastat

®

Controllers

APPLICATION

The L7224A,C and L7248A,C,L 2012 Compliant Oil

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 burner and boiler temperature.

The L7224/L7248 is “Outdoor Temperature Reset” ready

which is enabled when connected to the W8735S1000

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.

IMPORTANT

Use of Outdoor Temperature Reset on a tank-

less coil application requiring a Low Limit setting

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, noncondensing.

Approvals:

Underwriters Laboratories Inc. Component Recognized.

Canadian Underwriters Laboratories Inc. Component

Recognized.

2012 DOE Compliance and Operation

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.

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Summary

Page 2 - INSTALLATION; WARNING; Mounting

L7224A,C; L7248A,C,L OIL ELECTRONIC AQUASTAT ® CONTROLLERS 68-0281EFS—05 2 Accessories: W8735Y1000 Wireless Outdoor Reset Kit W873ER1000 Wireless Outdoor Reset Module C7089R1013 Wireless Outdoor Temperature Sensor (requires W8735ER1000) W8735S1000 AquaReset™ Outdoor Reset Kit (includes 50022037-002 ...

Page 3 - New Installation; Flush-Mounted Aquastat

L7224A,C; L7248A,C,L OIL ELECTRONIC AQUASTAT ® CONTROLLERS 3 68-0281EFS—05 IMPORTANT Immersion well must fit sensing element and sensor must rest against bottom of well. New Installation Order well assemblies separately; see Table 1 and form no. 68-0040, Immersion Wells and Compression Fittings for ...

Page 4 - Replacement Sensor Installation; Fuse; WIRING; OPERATION; General

L7224A,C; L7248A,C,L OIL ELECTRONIC AQUASTAT ® CONTROLLERS 68-0281EFS—05 4 Fig. 4. Replacement sensor installation. Replacement Sensor Installation Turn off all power and: 1. Carefully disconnect sensor from circuit board by pulling gently on the connector. 2. Gently pull sensor from thermo well and...

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