4
taBlE of ContEnts
IntroduCtIon
this manual contains the operating instructions for the commercial electric Xi control. It is intended to be used in conjunction with
the water heater instruction manual.
SAFE INSTALLATION, USE AND SERVICE................... 2
GENERAL SAFETY INFORMATION ............................... 3
Precautions...................................................................... 3
Hydrogen Gas (Flammable)
............................................ 3
INTRODUCTION ............................................................. 4
Preparing for the Installation............................................ 4
ELECTRICAL DATA ......................................................... 5
General ............................................................................ 5
Branch Circuit .................................................................. 5
Heater Circuits ................................................................. 5
Control Circuits ................................................................ 5
Power Circuit ................................................................... 5
WIRING DIAGRAMS ....................................................... 6
TEMPERATURE REGULATION ..................................... 7
HIGH TEMPERATURE LIMIT CONTROLS (ECO)
......... 7
THERMOSTAT CONTROLS ........................................... 7
Temperature Adjustment.................................................. 7
CONTROL SYSTEM OPERATION ................................. 8
TROUBLESHOOTING CHECKLIST
............................. 21
Not Enough or No Hot Water ......................................... 21
Water Is Too Hot ............................................................ 21
Water Heater Makes Strange Sounds
........................... 21
Leakage Checkpoints
.................................................... 21
Thank You for purchasing this water heater. Properly installed and
maintained, it should give you years of trouble free service.
Abbreviations Found In This Instruction Manual:
• ANSI - American National Standards Institute
• ASME - American Society of Mechanical Engineers
• NEC - National Electrical Code
• NFPA - National Fire Protection Association
prEparInG for thE InstallatIon
1. Read the “General Safety” section of this manual first and then
the entire manual carefully. If you don’t follow the safety rules,
the water heater may not operate safely. It could cause DEATH,
SERIOUS BODILY INJURY AND/OR PROPERTY DAMAGE.
This manual contains instructions for the installation, operation,
and maintenance of the water heater. It also contains warnings
throughout the manual that you must read and be aware of.
All warnings and all instructions are essential to the proper
operation of the water heater and your safety. READ THE
ENTIRE MANUAL BEFORE ATTEMPTING TO INSTALL OR
OPERATE THE WATER HEATER.
General outline diagrams are in this manual. These diagrams
will serve to provide the installer with a reference for basic
installation of this product. IT IS NECESSARY THAT
ALL WATER PIPING AND THE ELECTRICAL WIRING
BE INSTALLED AND CONNECTED AS SHOWN IN THE
DIAGRAMS.
Be sure to turn off power when working on or near the
electrical system of the water heater. Never touch electrical
components with wet hands or when standing in water. When
replacing fuses always use the correct size for the circuit.
Use same size and type of fuse when replacing.
The principal components of the heater are identified on page 6.
The model and rating plate on page 7 interprets certain markings
into useful information. Both of these references should be used
to identify the heater, its components and optional equipment.
2. The installation must conform with these instructions and the
local code authority having jurisdiction and the requirements
of the power company. In the absence of code requirements,
follow NFPA-70 (current edition). The National Electrical Code
may be ordered from: National Fire Protection Association, 1
Batterymarch Park, Quincy, MA 02269.
3. If after reading this manual you have any questions or do not
understand any portion of the instructions, call the toll free
number on the back cover for further assistance.
A sample rating plate and barcode tag are shown on page 7 of
this manual. In order to expedite your request, please have the
serial number and item ID from the barcode tag available for the
technician.
4. Carefully plan your intended placement of the water heater.
Examine the location to ensure the water heater complies with
the “Locating the New Water Heater” section in this manual.
Clearance must be maintained so that the coil bundle may be
removed for servicing after installation.
Installation and service of this water heater requires ability
equivalent to that of a licensed tradesman or qualified agency
(page 2) in the field involved. Plumbing and electrical work are
required.
5. For installation in California this water heater must be braced or
anchored to avoid falling or moving during an earthquake. See
instructions for correct installation procedures. Instructions may
be obtained from California Office of the State Architect, 1102 Q
Street, Suite 5100, Sacramento, CA 95811.
6. Massachusetts Code requires this water heater to be installed in
accordance with Massachusetts 248-CMR 2.00: State Plumbing
Code and 248-CMR 5.00.
