OWNER ’ S MANUAL FOR THE GARN® WHS ELECTRIC HEATING PACKAGE Thank you for purchasing GARN® equipment. Carefully read this manual. It contains instructions about how to install, operate, and maintain your GARN® WHS Electric Heating Package. Please compare your packing list with the delivered items. Contact your dealer, DECTRA CORPORATION, and shipper immediately if any items are missing or damaged.
TABLE OF CONTENTS
A. PURPOSE OF THIS MANUAL:.......................................................................................................................... 3
B. EQUIPMENT, COMPONENTS, AND CONTROLS OVERVIEW:............................................................................ 3
AVAILABLE HEATING PACKAGE SIZES: .......................................................................................................................3 WHAT IS PROVIDED WITH THE ELECTRIC HEATING PACKAGE?:.................................................................................3 SCHEMATIC DIAGRAM OF EQUIPMENT, COMPONENTS, AND CONTROLS: ...............................................................5
C. CODES, INSURANCE, AND SAFETY SYMBOLS.................................................................................................. 6
D. INSTALLATION ............................................................................................................................................... 7
GROUNDING .............................................................................................................................................................. 7 PREVENTING ELECTROLYSIS CORROSION REQUIRES PROPER GROUNDING AND ELECTRIC ISOLATION...............7 ELECTRIC ELEMENTS ..................................................................................................................................................8 ELECTRIC ELEMENT BOX ............................................................................................................................................8 SINGLE SEQUENCER.................................................................................................................................................11 DUAL SEQUENCERS .................................................................................................................................................12
E. OPERATION: ................................................................................................................................................ 13
WOOD OR ELECTRIC/WOOD OPERATION ................................................................................................................ 13 TEMPERATURE SETPOINT ADJUSTMENT .................................................................................................................14 DIAL SWITCH POSITIONS .....................................................................................................................................15 OUTDOOR RESET CURVE (USED WITH DIAL POSITION 1) ...................................................................................16
F. WIRING DIAGRAMS: .................................................................................................................................... 17
WHS/ETS DIGITAL CONTROLLER – REV A .................................................................................................................17 WHS/ETS DIGITAL CONTROLLER – REV C .................................................................................................................18 SEQUENCER – 16.5 K W.............................................................................................................................................19 SEQUENCER – 33.0 K W.............................................................................................................................................20 SEQUENCER – 49.5 K W.............................................................................................................................................21 IDENTIFYING YOUR BOARD REVISION .....................................................................................................................22 IDENTIFYING YOUR CHIP REVISION .........................................................................................................................22 CONTROLLER TO SEQUENCER WIRING – BOARD REV: UPC7115-A..........................................................................23 CONTROLLER TO SEQUENCER WIRING – BOARD REV: UPC7115-C ..........................................................................24 CONTROLLER TO OFF-PEAK METER WIRING ............................................................................................................25 USING AN AQUASTAT TO SET A CUSTOM DEADBAND AND SETPOINT ....................................................................27
G. WARRANTY ................................................................................................................................................. 28
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GARN® WHS Electric Heating Package Manual ©DECTRA CORPORATION - May 2016 (Supersedes September 2015 edition)
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