Installation Guide

whl-647 Rev. 000 Rel. 000 Date 8.11.17
2
The following dened terms are used throughout this manual to
bring attention to the presence of hazards of various risk levels or to
important product information.
DANGER indicates an imminently hazardous situation which, if not
avoided, will result in serious personal injury or death.
WARNING indicates a potentially hazardous situation which, if not
avoided, could result in personal injury or death.
CAUTION indicates a potentially hazardous situation which, if not
avoided, may result in moderate or minor personal injury.
CAUTION used without the safety alert symbol indicates a
potentially hazardous situation which, if not avoided, may result in
property damage.
NOTICE is used to address practices not related to personal injury.
Foreword
This manual is intended to be used in conjunction with other literature
provided with the water heater. This includes all related control
information. It is important that this manual, all other documents
included in this system, and additional publications including the
Code for the Installation of Heat Producing Appliances (latest version), be
reviewed in their entirety before beginning any work.
Installation should be made in accordance with the regulations of
the Authority Having Jurisdiction, local code authorities, and utility
companies which pertain to this type of water heating equipment.
Authority Having Jurisdiction (AHJ) – The AHJ may be a federal, state,
local government, or individual such as a re chief, re marshal, chief
of a re prevention bureau, labor department or health department,
building ocial or electrical inspector, or others having statutory
authority. In some circumstances, the property owner or his/her agent
assumes the role, and at government installations, the commanding
ocer or departmental ocial may be the AHJ.
NOTE: Westinghouse reserves the right to modify product technical
specications and components without prior notice.
For the Installer
This water heater must be installed by qualied and licensed personnel.
The installer should be guided by the instructions furnished with the
water heater, and by local codes and utility company requirements.
Installations Must Comply With:
Local, state, provincial, and national codes, laws, regulations, and
ordinances.
The latest version of the National Electrical Code, NFPA No. 70.
IMPORTANT SAFETY INSTRUCTIONS
When using electrical appliances, basic safety precautions to
reduce the risk of re, electric shock, or injury to persons should
be followed, including:
1. READ ALL INSTRUCTIONS BEFORE USING THIS WATER HEATER.
2. This water heater must be grounded. Connect only to a properly
grounded circuit. See Part 4 – Heater Wiring, this manual, for
grounding details.
3. Install or locate this water heater only in accordance with the
provided installation instructions.
4. Use this water heater only for its intended use as described in
this manual.
5. This water heater IS NOT for use by children.
6. Do not operate this water heater if it has damaged wiring, if it is
not working properly, or if it has been damaged or dropped.
7. This water heater should be serviced only by qualied service
personnel. Contact the water heater installer or a qualied service
agency for examination, repair, or adjustment.
SAVE THESE INSTRUCTIONS
Table of Contents
Part 1 - General Safety Information 3
A. When Servicing the Water Heating System 3
B. Heater Water 3
C. Freeze Protection 3
D. Water Temperature Adjustment 3
Part 2 - Prepare the Water Heater 4
A. What’s in the Box 4
B. Locating the Water Heater 4
C. Water Chemistry Requirements 5
Part 3 - Piping 8
A. Plumbing 8
B. Thermal Expansion 8
C. Condensation 8
D. Insulation Blankets 8
E. Temperature and Pressure Relief Valve 8
F. Scalding 9
G. Filling the Heater 9
H. Applications 10
Part 4 - Wiring 10
Part 5 - Installation Checklist 13
Part 6 - Operation 13
A. Combination Thermostat and High Limit Control (ECO)
13
B. Thermostat Adjustment and ECO Reset 13
C. Heating Element Replacement Procedure 14
Part 7 - Maintenance 14
Part 8 - Troubleshooting 17
Limited Warranty 18
Customer Installation Record Form 20