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Instruction Manual
RESIDENTIAL SOLAR
WATER HEATING SYSTEM
FOR POTABLE WATER
HEATING ONLY
Solar Water Heater
Solar Collector
SRCC OG-100
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
WHEN EVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
PRINTED IN THE U.S.A 0510
PART NO. 318281-000
1
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Summary of Contents for American Water Heater 318281-000
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Page 1: Instruction Manual
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 WHEN EVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED. PRINTED IN THE U.S.A 0510 PART NO. 318281-000... -
Page 2: Safe Installation, Use And Service
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. -
Page 3: General Safety
GENERAL SAFETY... -
Page 4: Introductions
Thank You for purchasing this water heating system. 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 •... -
Page 5: Table Of Contents
SAFE INSTALLATION, USE AND SERVICE... 2 Important Defi nitions ... 2 GENERAL SAFETY ... 3 INTRODUCTIONS ... 4 System Description ... 4 Preparing for Installation ... 4 TABLE OF CONTENTS ... 5 SYSTEM DIAGRAM/TYPICAL INSTALLATION ... 6 SYSTEM COMPONENT PART ... 7 STORAGE TANK INSTALLATION ... -
Page 6: System Diagram/Typical Installation
SYSTEM DIAGRAM/TYPICAL INSTALLATION Discharge Pipe (DO NOT CAP OR PLUG) Metal Drain At Least 2” Greater Than The Diameter Of The Water Heater. I N S TA L L VA C U U M R E L I E F I N C O L D WATER INLET LINE AS REQUIRED BY LOCAL CODES. -
Page 7: System Component Part
SYSTEM COMPONENT PART TABLE 1: Item Component Solar collector Solar storage tank Heat exchanger (Not Shown) Expansion tank Temperature and Pressure relief valve Air vent Drain valve Mixing valve Solar pump station Temperature sensor STORAGE TANK INSTALLATION Never operate the electrical heating element without being certain the solar water heater is completely filled with water. -
Page 8: Closed System/Thermal Expansion
or external to the building. In cold climates, it is recommended that the discharge pipe be terminated at an adequate drain inside the building. • Shall not have any valve between the relief valve and tank. When installing the temperature-pressure relief valve, use two or three turns of teflon tape or other suitable thread sealer around the threaded end of the valve. -
Page 9: Installation In Residential Garages
This solar water heater shall not be connected to any heating systems or component(s) previously used with a non-potable water heating appliance. If this solar water heater is also used for space heating applications, all piping and components connected to the solar water heater shall be suitable for use with potable water. -
Page 10: Thermostat
Figure 5 Flexible metal conduit or flexible metallic tubing shall be permitted for grounding if all the following conditions are met: 1. The length in any ground return path does not exceed 6 feet. 2. The circuit conductors contained therein are protected by overcurrent devices rated at 20 amperes or less. -
Page 11: Temperature Adjustment
TEMPERATURE SETTINGS HIGH LIMIT CONTROL RESET RESET THERM-O-DISC THERMOSTAT 150°F 90°F (66°C) (32°C) 125°F (52°C) Figure 7 TABLE 2: Time for 1st Degree Water Burn Temperature °F (Less Severe Burns) (normal shower temp.) (pain threshold) 35 minutes 1 minute 5 seconds 2 seconds 1 second instantaneous... -
Page 12: Element
Make sure the electrical supply to the solar water heater is turned OFF. Failure to heed this will result in the possibility of DEATH, SERIOUS BODILY INJURY OR PROPERTY DAMAGE. 2. Open a nearby hot water faucet until the water is no longer hot, then turn off the cold water supply and open the drain valve, leaving the hot water faucet open. -
Page 13: Solar Collector Installation
SOLAR COLLECTOR INSTALLATION COLLECTOR LOCATION Proper location and orientation of the solar collectors is important for maximum system effi ciency. The collec- tors should be unshaded from 10:00 am through 3:00 pm each day in every month of the year and should be located as close to the storage tank as possible to mini- mize heat loss in the piping runs. -
Page 14: Collector Orientation
SOLAR COLLECTOR INSTALLATION COLLECTOR ORIENTATION Proper tilt angle for solar collectors is latitude plus 15° This 15° additional tilt improves performance in the winter, when the sun is weaker and at a lower angle. The cost in performance in the summer when the sun is high is overcome by the hours of sunlight and strength of irradiation that occurs in the summer. -
Page 15: Spanner Mounting
All persons working on roofs should have successfully completed a fall-safety course and should be properly equipped with appropriate safety equipment. WARNING After completion of the collector mounting and prior to system charging the collectors must be covered by a blanket of other means to avoid solar radiation from heating the collectors. -
Page 16: Lag Bolt Mounting
Drill Points (Clearance Hole Mounting for 3/8” Bolt) Bracket 32” 14” 32” 14” 86” Figure 15 Figure 16... -
Page 17: Attaching Collector To Mounting Brackets
ATTACHING COLLECTOR TO MOUNTING BRACKETS Once all of the mounting brackets have been secured to the roof insert the channel nut with spring inside the channel. Then fasten the collector mounting clip to the nut with the stainless steel bolt using a fl at washer and lock washer –... -
Page 18: Collector Piping
COLLECTOR PIPING The piping of the system should be considered before a fi nal decision is made on how the collectors are mounted. Piping should be made of copper tube of the type meeting local codes, insulated with Armacell UT Solafl ex or similar. -
Page 19: Collector Piping Detail
COLLECTOR PIPING DETAIL The outlets of the collector are 1” copper pipe nipples (Figure 19). They should be piped as shown with provisions for an automatic air vent. The air vent must be oriented vertically as this must be the highest point in the system in order for air to escape. -
Page 20: Pump Station Installation
PUMP STATION INSTALLATION PUMP STATION The following instructions describe the installation, start- up, function and operation of the solar pump station. The solar pump station may only be used in the collector circuit of a solar thermal intallation. The technical data specifi... -
Page 21: Safety Equipment
PUMP STATION INSTALLATION SAFETY EQUIPMENT For protection against excessive pressures in the collector loop a pressure relief valve is integrated into the solar pump station. Drain tubing must be installed in the valve outlet so that any discharge will exit only within 6 inches above, or at any distance below the structural fl... -
Page 22: Plumbing Confi Guration
FLOW CLOSED Figure 25 Check and set the pressure of the air bladder in the expansion tank to 25 psi. If the pressure is higher bleed pressure out until it is correct. If the pressure is too low add air by use of a compressor or bicycle pump until the pressure is correct. -
Page 23: Flowmeter
FLOWMETER The flowmeter (U) serves to measure and display flow volume of the system in a range of 0.5-3.5 US gpm. It has an integrated restrictor (S) with adjustment valve which allows fine adjustment of the flow volume of the solar installation. -
Page 24: Filling
Turn on the supply water and open the fill valve (P) then leave running for 15 minutes to flush debris out of the solar loop After the 15 minute flush turn off the supply water at the source and allow the system to drain. When water stops flowing out of the discharge hose close the fill valve (P) Close the drain valve (T) on the pump station and... -
Page 25: Pump Station Control Instructions
PUMP STATION CONTROL INSTRUCTIONS CONTROL INSTRUCTIONS Prior to operation of the control on the solar pump station the collector and tank temperature sensors must be prop- erly connected. Remove the control cover and connect the sensors to the proper terminals. Figure 32 Figure 33 The temperature sensors should be connected to the... - Page 26 System Monitoring Display The system monitoring display consists of 3 blocks: channel indication, the toolbar, and system screen. Complete monitoring display Channel indication The channel indication consists of two lines. The upper line is an alphanumeric 16 segment indication in which the channel name or menu item is shown. The lower 7 segment indication shows the channel value and the adjustment parameters are indicated.
- Page 27 STARTUP / SYSTEM SETTINGS The AC power cord should be plugged in to an appropriate 115V outlet. The controller will enter an initialization phase in which the operating control lamp will flash red and green. After the initialization period the controller will be in automatic operation with the default settings active.
- Page 28 DTF: Switch-off temperature diff. Adjustment range 1.0 to 38.0 °F Default setting 8.0 Recommended setting: 4.0 SMX: Maximum tank temperature Adjustment range: 40 to 205 °F Default setting 140 °F Recommended setting: 160 °F Collector temperature limit Adjustment range: 230 to 400 °F Default setting: 285 °F Recommended setting: 285 °F OCX:...
- Page 29 OCF: Antifreeze function Adjustment: OFF / ON Default setting: OFF Recommended setting: OFF CFR: Antifreeze temperature Adjustment range: 15 to 50 °F Default setting: 40 °F Recommended setting: 40 °F Channel only available when OCF is active Channel only available when OCF is active OREC: Recooling function Adjustment: OFF / ON...
- Page 30 MED%: Concentration of antifreeze by volume % Adjustment range: 20 to 70% Default setting: 45 Recommended setting: 50 Channel only available when OHQM is active. kWh/MWh: Heat quantity value shown in the kWh and MWh display channels. The sum of both channels form the total heat output.
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Page 31: Troubleshooting
PROBLEM No hot water Storage water heater Storage water heater thermostat Thermostatic mixing valve Not enough hot water Storage water heater Check valve Cold water supply dip tube Collectors Differential Controller TROUBLESHOOTING CHECK THIS POSSIBLE CAUSE No power to auxiliary back-up heating element Thermostat defective Improper adjustment... - Page 32 PROBLEM Not enough hot water (cont.) Differential Controller Isolation valves Thermostatic mixing valve Piping Pump No hot water in the morning Storage water heater Differential controller Water too hot Thermostatic mixing valve No water Cold-water supply valve Pump does not start Differential controller CHECK THIS POSSIBLE CAUSE...
- Page 33 PROBLEM Pump does not start Electrical power supply Pump Sensors Pump starts, but cycles Differential controller continuously Piping Sensors Pump cycles after dark Differential controller Sensors Pump runs continuously Differential controller Pump operated but no fl uid Airstop fl ows from collectors Air vent Fluid Isolation valves...
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Page 34: System Maintenance
HEAT TRANSFER FLUID (HTF) QUALITY The chemical composition of the HTF may change over time. The HTF quality should be monitored on a periodic basis – at least annually. After summer and before any chance of the first freeze is an ideal time. A drop in ph can indicate the system has been stagnating frequently. -
Page 35: Repair Parts
REPAIR PARTS SCHEDULE ORDERING REPAIR PARTS The following parts may be ordered through the store or dealer from whom you purchased the solar water heater, or direct from the factory listed on the model & rating plate located on the lower front of the solar water heater and by phone at 1-800-433-2545.