Honeywell C, L, L7224A, L7248A Automation and Control Solutions

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L7224A,C; L7248A,C,L OIL AND ELECTRIC BOILER ELECTRONIC AQUASTAT® CONTROLLERS

Automation and Control Solutions

Honeywell International Inc.

1985 Douglas Drive North

Golden Valley, MN 55422

customer.honeywell.com

® U.S. Registered Trademark

68-0281—16 M.S. Rev. 09-13

Printed in United States

Contents

Main INSTALLATION INSTRUCTIONS 68-0281-16 L7224A,C; L7248A,C,L Oil and Electric Boiler Electronic Aquastat Controllers APPLICATION SPECIFICATIONS 2012 DOE Compliance and Operation INSTALLATION WARNING When Installing this Product... Mounting New Installation Flush-Mounted Aquastat Replacement Well-Mounted Aquastat Replacement Replacement Sensor Installation WARNING Fuse WIRING OPERATION General Adjusting Settings Display Operation High Limit Controller Low Limit and Circulator Controller Anti Short-Cycle Feature ZR-Domestic Hot Water (DHW) Request CHECKOUT TROUBLESHOOTING L7224A,C; L7248A,C,L OIL AND ELECTRIC BOILER ELECTRONIC AQUASTAT CONTROLLERS Page Page Page L7224 TH9421C R7184/R7284 Fig. 11. L7248L multizone system with circulator connections. ELL=OFF 1 2 3 TS TS L7224 R7184/R7284 1 2 3 TS TS Fig. 13. L7248L External Low Limit connections. T T3 2 1 ELL=ON Automation and Control Solutions