GARN® WHS | Electric Heating Package Owner's Manual

A. PURPOSE OF THIS MANUAL:

This manual is intended to be a reference for both the owner and the electrician/installer of the GARN Electric Heating Package. It provides the following information:

Overview of operation and control logic Wiring diagrams and control schematics Answers to commonly asked questions

GARN has made off- peak heating equipment since the early 1980’s. Off-peak heating works well with GARN wood equipment because the thermal storage is already built into the unit. Although the specific configurations of the GARN electric heating controls and packaging has been revised over the years, the operational philosophy and the way in which the controls physically interact with the utility has remained nearly unchanged. That means, that this manual can be applied to virtually any electric heating equipment system GARN has ever produced. But, the manual is specifically tailored towards the most recent revisions of controls and packaging. B. EQUIPMENT, COMPONENTS, AND CONTROLS OVERVIEW: Every GARN® WHS is shipped with threaded electric element flanges in the lower-right corner of the front head/face of the unit (on the WHS-3200, the flanges are located on the rear head of the unit). The flanges provide the opportunity to purchase the electric heating package and turn the GARN® WHS unit into an electric heating system. Electric heating can be used in conjunction with wood heating to provide a dual-fuel heating system. There are 3 electric heating package sizes to choose from. The correct size for your application depends on the utility/coop off-peak electric program, heating load, and GARN WHS unit size.

AVAILABLE HEATING PACKAGE SIZES:

Electric Heating Package Size Number of Electric Elements 16.5 kW 3 33.0 kW 6 49.5 kW 9

WHAT IS PROVIDED WITH THE ELECTRIC HEATING PACKAGE?:

The Complete GARN Electric Heating Package comes standard with the following components:

 Electric Elements (3, 6, or 9 depending on heating package size selected)  O-rings for elements  Electric Element Junction Box  Electric Element Junction Box Face Gasket  Electric Element Junction Box Cover, Label, and Fasteners

Element Sequencer (powers the elements on one-at-a-time)

High Limit Switch

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Newest available Processor Chip for the Digital Controller

3

GARN® WHS Electric Heating Package Manual ©DECTRA CORPORATION - May 2016 (Supersedes September 2015 edition)

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