Amtrol WHS Series Installation & Operation Instructions

Indirect-fired water heaters
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NOTE: Inspect for shipping damage and notify freight carrier or store where purchased immediately if damage is present. To avoid risk of personal
injury and property damage, if the product appears to be malfunctioning or shows signs of corrosion, call a licensed professional immediately. Current
copies of the Product manual can be viewed at www.amtrol.com. Use proper safety equipment when installing.
THIS IS THE SAFETY ALERT SYMBOL. IT IS USED TO ALERT YOU TO POTENTIAL PERSONAL INJURY AND OTHER
HAZARDS. OBEY ALL SAFETY MESSAGES THAT FOLLOW THIS SYMBOL TO REDUCE THE RISK OF PERSONAL
INJURY AS WELL AS PROPERTY DAMAGE.
READ
INSTALLATION & OPERATION INSTRUCTIONS.
FAILURE TO FOLLOW THE INSTRUCTIONS AND WARNINGS IN THE
MANUAL MAY RESULT IN SERIOUS OR FATAL INJURY AND/OR
PROPERTY DAMAGE, AND WILL VOID THE PRODUCT WARRANTY.
THIS
PRODUCT
MUST
PROFESSIONAL. FOLLOW ALL APPLICABLE LOCAL AND STATE
CODES AND REGULATIONS, IN THE ABSENCE OF SUCH CODES,
FOLLOW THE CURRENT EDITIONS OF THE NATIONAL PLUMBING
CODE AND NATIONAL ELECTRIC CODE, AS APPLICABLE.
DO NOT LIFT OR CARRY WATER HEATER BY THE
TOP COVER. WATER HEATER DAMAGE OR
PERSONAL INJURY MAY OCCUR IF THE COVER BECOMES DETACHED.
INSTALLATION & OPERATION INSTRUCTIONS
CAREFULLY
THE
BE
INSTALLED
BY
A
PREMIER SERIES
INDIRECT-FIRED WATER HEATERS
PRODUCT
1, as listed in Clinical Toxicology of Commercial Products, 5th
edition. The pressure of the heat transfer medium must be limited to
30 PSIG by an approved safety or relief valve.
LICENSED
cause cancer and birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov.
WHS-Series and DC-Series
NOTE: A properly sized thermal
expansion tank is required and should
be installed in accordance with product
installed in accordance with the
product installation manual.
NOTE: The thermostat is adjusted to
120°F when shipped from the factory.
The heat transfer medium must be water or other
nontoxic fluid having a toxicity rating or class of
This product can expose you to chemicals including
lead, which is known to the State of California to

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Summary of Contents for Amtrol WHS Series

  • Page 1 Current copies of the Product manual can be viewed at www.amtrol.com. Use proper safety equipment when installing. THIS IS THE SAFETY ALERT SYMBOL. IT IS USED TO ALERT YOU TO POTENTIAL PERSONAL INJURY AND OTHER HAZARDS.
  • Page 2 PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY IMPORTANT GENERAL SAFETY INFORMATION - ADDITIONAL SPECIFIC SAFETY ALERTS APPEAR IN THE FOLLOWING INSTRUCTIONS. THIS PRODUCT MUST BE INSTALLED AND MAINTAINED BY NOTICE: In this non-priority option, the water heater will be A LICENSED PROFESSIONAL PLUMBER, ELECTRICIAN, AS supplied just as another zone.
  • Page 3: Required Components And Accessories Checklist

    Chlorine Aggressive Water: The water quality can Do not drain this appliance before shutting off the supply valve and opening the relief valve or another significantly influence the life of this Product. You downstream fixture, as it will damage this unit. A vacuum breaker should should test for corrosive elements, acidity, total solids and other relevant be installed to avoid damaging the liner.
  • Page 4: Domestic Water Piping

    Plumbing Domestic Water Piping Boiler Piping 1. Connect the cold water supply to the connection labeled 1. Plumb the circulator or zone valve on the BOILER COLD WATER. SUPPLY line. 2. Connect the HOT WATER piping to the domestic hot 2.
  • Page 5 WHS Models PIPING USING SEPARATE CIRCULATOR PUMP (RECOMMENDED) PIPING USING ZONE VALVE WITH EXISTING HEATING SYSTEM CIRCULATOR...
  • Page 6: Boiler Controls

    Mechanical Aquastat Wiring Diagrams Common wiring diagrams are shown below. Select the appropriate diagram for the application. Diagrams are popular examples only. If your application is not shown, contact AMTROL Technical Support at 401.535.1216. Boiler Controls Typical Oil Burner (Non-Priority)
  • Page 7 Ener-G-NET Wiring ™ Ener-G-NET incorporates all of the temperature sensing and control necessary for water heater operation. Built-in switching relays may be wired to operate the boiler control and circulator pump or zone valve. The diagram below illustrates these internal switching functions.
  • Page 8 Diagrams are popular • Relative humidity ranging from 20% to 90% (non-condensing). examples only. If your application is not shown, contact Amtrol • Boiler load rating up to 15A resistive,1/4hp inductive @ 120VAC. Technical Support at 401.535.1216.
  • Page 9 Ener-G-NET Control Setup & Adjustment ™ Ener-G-NET features two distinct programming areas: User Mode Modes and Installer Settings. User Modes consist of three Indicators end-user functional modes, while Installer Settings are primarily User accessed upon initial setup to specify critical operating parameters. Modes Ener-G-NET factory defaults allow traditional operation suitable for most homes.
  • Page 10: Start-Up Procedure

    2. Boiler will periodically cycle on and off during operation. hot water 3. Problem with boiler system 3. Have boiler diagnosed for proper operation. Warranty WHS Series and DC Series: -Year Limited Warranty Residential 5-Year Limited Warranty Commercial Visit www.amtrol.com for complete warranty details.
  • Page 12 1400 Division Road, West Warwick, RI USA 02893 T: 800.426.8765 www.amtrol.com © 2020 Worthington Industries Inc. Part #: 9040-534 (06/20) One or more features of this product are covered by U.S. patents, visit www.amtrol.com/patents for more information.

This manual is also suitable for:

Premier seriesDc series

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