Table Of Contents; Introduction; Preparing For The Installation; Table Of Contents - A.O. Smith Cirrex SUN-80 Instruction Manual

Thank You for purchasing this solar 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
• AHRI - Air-Conditioning, Heating, and Refrigeration Institute
• NEC - National Electrical Code
• NFPA - National Fire Protection Association
• UL - Underwriters Laboratories Inc.
• CSA - Canadian Standards 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 solar water heater will not operate properly. It could cause
DEATH, SERIOUS BODILY INJURY, AND/OR PROPERTY
DAMAGE.
This manual contains instructions for the installation,
operation, and maintenance of the electric water heater. It also
contains warnings throughout the manual that you must read
and understand. 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 SOLAR WATER HEATER.
SAFE INSTALLATION, USE AND SERVICE............................2
GENERAL SAFETY..................................................................3
INTRODUCTION ......................................................................4
Preparing for the Installation...............................................4
TABLE OF CONTENTS ............................................................4
TYPICAL INSTALLATION .........................................................5
LOCATING THE NEW SOLAR WATER HEATER .................... 6
Facts to Consider About the Installation .............................6
Insulation Blankets .............................................................6
INSTALLING THE NEW SOLAR WATER HEATER ............ 6-11
Local Codes........................................................................6
Temperature-Pressure Relief Valve .................................6-8
Closed System/Thermal Expansion ...................................8
Locating the Solar Water Heater ........................................8
Water Piping ..................................................................8-10
Filling the Solar Water Heater with Water ......................... 10
T&P Valve and Pipe Insulation (Selected Models) ........... 10
Wiring of Element ........................................................ 10-11
Thermostat ....................................................................... 11
Tank Sensor...................................................................... 11

INTRODUCTION

2. The installation must conform with these instructions and the
3. If after reading this manual you have any questions or do not
4. Carefully plan your intended placement of the water
5. For California installation this water heater must be braced,
6. Massachusetts Code requires this water heater to be installed

TABLE OF CONTENTS

OPERATION ...........................................................................12
FOR YOUR INFORMATION ...................................................13
MAINTENANCE ................................................................14-15
REPAIR PARTS ......................................................................16
4
local code authority having jurisdiction and the requirements of
the power company. In the absence of local code requirements
follow NFPA-70, the National Electrical Code (current
edition), which may be ordered from: National Fire Protection
Association, 1 Batterymarch Park, Quincy, MA 02269.
understand any portion of the instructions, call the local utility
or the manufacturer whose name appears on the rating plate.
heater. INSTALLATION OR SERVICE OF THIS WATER
H E AT E R R E Q U I R E S A B I L I T Y E Q U I VA L E N T TO
THAT OF A LICENSED TRADESMAN IN THE FIELD
INVOLVED. PLUMBING AND ELECTRICAL WORK
ARE REQUIRED.
Examine the location to ensure the water heater complies with
the "Facts to Consider About the Location" section in this manual.
anchored, or strapped 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, 400 P Street, Sacramento, CA
95814.
in accordance with Massachusetts 248-CMR 2.00: State
Plumbing Code and 248-CMR 5.00.
Temperature Regulation ...................................................12
Temperature Settings .......................................................12
Temperature Adjustment...................................................12
Thermal Expansion...........................................................13
Strange Sounds ................................................................13
Water Odor .......................................................................13
"Air" in Hot Water Faucets ................................................13
High Temperature Shut Off System ..................................13
Draining & Flushing ..........................................................14
Element ............................................................................14
Heating Element Replacement .........................................14
Thermostat Removal / Replacement ................................ 14
Anode Rod Inspection ......................................................15
Temperature-Pressure Relief Valve Operation ................. 15
Water Heater Sounds .......................................................15
Repair Parts Schedule......................................................16