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Residential Solar Water Heating Systems Standard Systems with Single Wall Heat Exchanger for Potable Water Heating Only

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Instruction Manual RESIDENTIAL SOLAR WATER HEATING SYSTEMS STANDARD SYSTEMS WITH SINGLE WALL HEAT EXCHANGER FOR POTABLE WATER HEATING ONLY C US LISTED Solar Water Heater ™ Solar Collector SRCC OG-100 ™ Solar Water Heating System SRCC OG-300 ALL TECHNICAL AND WARRANTY QUESTIONS: SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS PURCHASED. IF YOU ARE UNSUCCESSFUL, PLEASE WRITE TO THE COMPANY LISTED ON THE RATING PLATE ON THE WATER HEATER. KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED. PRINTED 0311 1 320008-001 SAFE INSTALLATION, USE AND SERVICE Your safety and the safety of others is extremely important in the installation, use, and servicing of this water heater. Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of a potential injury hazard. Read and obey all safety messages and instructions throughout this manual. It is very important that the meaning of each safety message is understood by you and others who install, use, or service this water heater. This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. DANGER indicates an imminently hazardous DANGER situation which, if not avoided, will result in death or injury. WARNING indicates a potentially hazardous situation which, if not avoided, could result in WARNING death or injury. CAUTION indicates a potentially hazardous situation which, if not avoided, could result in CAUTION minor or moderate injury. CAUTION used without the safety alert symbol indicates a potentially hazardous situation CAUTION which, if not avoided, could result in property damage. All safety messages will generally tell you about the type of hazard, what can happen if you do not follow the safety message, and how to avoid the risk of injury. The California Safe Drinking Water and Toxic Enforcement Act requires the Governor of California to publish a list of substances known to the State of California to cause cancer, birth defects, or other reproductive harm, and requires businesses to warn of potential exposure to such substances. WARNING: This product contains a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm. This appliance can cause low-level exposure to some of the substances listed in the act. Hydrogen gas can be produced in a hot water system that has not been used for a long period of time (generally two weeks or more). Hydrogen gas is extremely flammable and can ignite when exposed to a spark or flame. To prevent the possibility of injury under these conditions, we recommend the hot water faucet be opened for several minutes at the kitchen sink before using any electrical appliance which is connected to the hot water system. If hydrogen is pres- ent, there will probably be an unusual sound such as air escaping through the faucet as water begins to flow. Do not smoke or have any open flame near the faucet at the time it is open. IMPORTANT DEFINITIONS • Qualified Installer: A qualified installer must have ability equivalent to a licensed tradesman in the fields of plumbing and electrical installation of these appliances. This would include a thorough understanding of the requirements of the National Electrical Code and applicable local electrical and plumbing codes (and tools necessary to confirm proper installation and operation of the water heater) as they relate to the installation of electric water heaters. The qualified installer must have a thorough understanding of the water heater Instruction Manual. • Service Agency: A service agency also must have ability equivalent to a licensed tradesman in the fields of plumbing and electrical installation of these appliances. This would include a thorough understanding of the requirements of the National Electrical Code and applicable local electrical and plumbing codes (and tools necessary to confirm proper installation and operation of the water heater) as they relate to the installation of electric water heaters. The service agency must have a thorough understanding of the water heater Instruction Manual. 2 GENERAL SAFETY 3 INTRODUCTION Thank You for purchasing this water heating system. PREPARING FOR THE INSTALLATION Properly installed and maintained, it should give you years of trouble free service. 1. Read the “General Safety” section of this manual first and Abbreviations Found In This Instruction Manual: then the entire manual carefully. If you don’t follow the • ANSI - American National Standards Institute safety rules, the water heater will not operate properly. It • ASME - American Society of Mechanical Engineers could cause DEATH, SERIOUS BODILY INJURY, AND/ • GAMA - Gas Appliance Manufacturers Association OR PROPERTY DAMAGE. • NEC - National Electrical Code This manual contains instructions for the installation, • NFPA - National Fire Protection Association operation, and maintenance of the solar water heater. • UL - Underwriters Laboratories Inc. It also contains warnings throughout the manual that • SRCC - Solar Rating and Certification Corp. you must read and understand. All warnings and all instructions are essential to the proper operation of SYSTEM DESCRIPTION the water heater and your safety. READ THE ENTIRE MANUAL BEFORE ATTEMPTING TO INSTALL OR This Solar Water Heating System consists of four main OPERATE THE WATER HEATER. parts — the solar collectors, the solar pump station, the solar storage tank, and the plumbing for the heat transfer 2. The installation must conform with these instructions fluid. and the local code authority having jurisdiction and the requirements of the power company. In the absence of The solar pump station uses a pump to circulate a heat- local code requirements follow NFPA-70, the National transfer fluid through the “collector loop”. This collector Electrical Code (current edition), which may be loop includes the solar collectors, the fluid lines or “line- ordered from: National Fire Protection Association, 1 set” and a heat exchanger. The collector loop is a “closed Batterymarch Park, Quincy, MA 02169. loop”, meaning there is no contact of the heat transfer fluid with your potable water or with the atmosphere. The collec- 3. If after reading this manual you have any questions or tor loop contains only a small volume of heat-transfer fluid do not understand any portion of the instructions, call the which is non-toxic and freeze-protected to -30°F (Freeze local utility or the manufacturer whose name appears on tolerance limits are based upon an assumed set of environ- the rating plate. mental conditions). Though freeze protection may not be 4. Carefully plan your intended placement of the water heater necessary in all areas, the heat-transfer fluid also contains and collectors. INSTALLATION OR SERVICE OF THIS corrosion inhibitors which protect the system components, WATER HEATER REQUIRES ABILITY EQUIVALENT has an elevated boiling point, and is suitable throughout TO THAT OF A LICENSED TRADESMAN IN THE FIELD North America. INVOLVED. PLUMBING AND ELECTRICAL WORK ARE When exposed to sunlight, the solar collectors get hot. REQUIRED. As the heat-transfer fluid passes through the collectors, Examine the location to ensure the water heater complies it absorbs the heat and then travels down the line-set to with the “Facts to Consider About the Location” section the tank. The hot fluid passes through the heat exchanger in this manual. and heat is transferred to the potable water. After giving up 5. For California installation this water heater must be its heat to the potable water, the cool heat-transfer fluid is braced, anchored, or strapped to avoid falling or moving pumped back to the solar collectors to be heated again. during an earthquake. See instructions for correct Hot potable water is stored in the solar storage tank. installation procedures. Instructions may be obtained The auxiliary or back-up electric-heating guarantees hot from California Office of the State Architect, 400 P Street, water even under poor solar conditions (at night or when Sacramento, CA 95814. very cloudy). The minimum acceptable temperature set- 6. Massachusetts Code requires this water heater to be point is specified in local plumbing codes. installed in accordance with Massachusetts 248-CMR You can save the most money on your water-heating bills 2.00: State Plumbing Code and 248-CMR 5.00. by using the backup heater on your system as little as pos- 7. The solar energy system described by this manual, when sible. If the sun shines brightly between 10 am and 3 pm, properly installed and maintained, meets the minimum enough heat will normally be generated to keep the water standards established by the SRCC. This certification hot throughout the rest of the day and night. does not imply endorsement or warranty of this product However, on days when the sky is cloudy or when large by SRCC. quantities of hot water are being used, we recommend leaving the backup heater turned on and set to 120° F to provide adequate hot water. 4 TABLE OF CONTENTS SAFE INSTALLATION, USE AND SERVICE............................2 General Considerations ..........................................13 Important Definitions .................................................2 Collector Orientation ..........................................14-15 GENERAL SAFETY .................................................................3
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