RheemメーカーRS120-64BPの使用説明書/サービス説明書
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The purpose of this manual is twofold: one, to provide the installer with the basic directions and recommendations for the proper installation and adjustment of the water heater; and two, for the owner–operator , to explain the features, operation, safety precautions, maintenance and troubleshooting of the water heater .
Safety Information Introduction ............ 3, 4 Safety Precautions ....... 5, 6 2 FOR YOUR RECORDS W rite the model and serial numbers here: Model Number of Solar System T ank: _____________________.
Intr oduction Thank you for purchasing a solar water heating system. It is one of the most effective and trouble- free systems available today . In addition to reducing your water-heating bills, it will help preserve precious natural resources by using free energy from the sun.
4 Intr oduction continued... Keep the use of the Backup Heater to a Minimum Y ou can save the most money on your water-heating bills by using the backup heater on your system as little as possible.
Time/T emperatur e Relationship in Scalds T emperature T ime T o Produce a Serious Burn 120°F More than 5 minutes 125°F 1½ to 2 minutes 130°F About 30 seconds 135°F About 10 seconds 140°F Less t.
6 IMPOR T ANT SAFETY INFORMA TION. R E A D A L L I N S T R U C T I O N S B E F O R E U S I N G . ! W ARNING! For your safety , the information in this manual must be followed to minimize the risk of fire or explosion, electric shock, or to prevent property damage, personal injury , or loss of life.
7 PREF ACE Let us rst offer two words of grateful appreciation. Thank Y ou! W e sincerely appreciate your business. Rheem also wishes to say thank you for "going solar".
8 the controller will turn the circulating pump on. When the temperature difference has been reduced to eight degrees, the controller automatically turns the pump off. Both single and double tank Rheem systems are designed to provide three separate modes of system operation.
9 In order to completely protect the integrity of the solar collector and piping, the system is designed to be drained manually if subject to extended periods of disuse or persistent hard freeze conditions below minus 30° Fahrenheit. (See Sections 8.
10 in the Northern Hemisphere is optimized when the collector is mounted facing T rue South. Performance, however , suffers very little when the collector is oriented no more than 45° East or W est of True South. The collector should be unshaded by any permanent obstacle between 9:00 a.
11 4.2 Collector T ilt Optimal annual efciency is achieved by tilting the solar collector at an angle that equals your latitude plus an additional 10°. This tilt angle favors the lower winter sun when collector performance is at it’ s lowest and minimizes overheating during the hottest summer months.
Installing the water heater . 12 attic workspace. The solar collector should be mounted on the roof in accordance with these general principles: 4.3.1 The most important structural consideration is to securely anchor the solar collector and the Rheem mounting hardware to the structural members of the roof with stainless steel hanger or lag bolts.
13 that all roof penetrations required to plumb and mount the solar collector are properly ashed and sealed in accordance with standard roong practices. 4.3.5 If the region is subject to hurricane conditions, additional steps may be required to secure the collector and mounting hardware to the structural members.
14 Installing the water heater . Any above ground exterior pipe insulation is subject to UV degradation and must be wrapped with foil tape or painted with two coats of high quality water-based acrylic resin coating as supplied by the insulation manufacturer .
15 4.6 Collector Sensor Placement The collector sensor must be located on the hot water return line as close to the collector as possible. Sensors are typically accurate to +/- 1/2°F if properly installed and weatherized.
16 Installing the water heater . easy to reach. Provide for clear access to the storage tank, pump, expansion tank, mixing valve, time clock (optional, not provided) and other key components. If a component in the potable water side of the system may require future service or maintenance make the connections with brass unions.
17 In a single tank system install a third thermometer (No. 3) directly after the mixing valve above the solar storage tank. In a two tank system you may install the third thermometer either directly above the hot outlet on the solar storage tank or after the mixing valve on the back-up water heater .
18 Installing the water heater . UPS15-5BFC/LC, 1 15 volt. The pump shall be prewired with a 6’ line cord so that it can be plugged directly into the 1 15 volt receptacle on the side of the differential control. T wo way ball valves must be installed on either side of the circulating pump (Nos.
19 supplies to deliver hot water to your xtures at a safe, controlled temperature. ! W ARNING: SCALDING CAN OCCUR WITHIN FIVE SECONDS WHEN W A TER TEMPERA TURES APPROACH 140ºF . THE MIXING V AL VE SHOULD BE ADJUSTED BY YOUR CONTRACTOR TO PROVIDE W A TER TO YOUR FIXTURES A T NO MORE THAN 120ºF .
20 W e recommend the use of a 1 15 volt differential control with a factory installed six foot line cord. The installation requires one 1 15 volt outlet to be installed near the solar storage tank. Plug the control into the outlet. The circulation pump line cord is plugged into the receptacle on the side of the controller .
21 regular tap water as a mixing agent is pr ohibited. Proceed as follows: 4.1 1.1 Begin by lling the solar tank with water . Do this by opening the cold water isolation ball valve to the solar tank (No. 23). When the tank is lled, inspect all threaded ttings and solder joints for leaks.
22 this by setting the manual switch within the controller to the “on” position. Run the pump for a full ve minutes and carefully check to ensure there is proper uid ow and that all the air has been purged from the solar collector glycol loop.
23 4.1 1.4 Mix the Dowfrost HD propylene glycol and distilled water mixture in accordance with T able 4 and T able 5 in a large clean bucket. Y ou will need a second empty bucket as well. The char ging process also will require a low ow diaphragm pump (Flojet or equal) to ll and pressurize the collector loop.
24 Open the upper charge faucet and allow the pressure from the expansion tank to push the water in the glycol loop back to prime the pressure pump. When the hose in the bucket containing the glycol mixture stops bubbling you may begin charging the collector loop with glycol.
25 as this will adversely impact the relative heat transfer efciency of the solution. Generally , for an extended margin of protection, you should select a temperature that is at least 5°F lower than the expected lowest ambient temperature. These gures are examples only and should not be regarded as specications.
26 depletion rate, and cause the formation of scale and other deposits on the heat exchanger's internal heat transfer surfaces. Distilled or deionized water is required. The HTF pH level must be maintained between 8 and 10 to minimize corrosion and glycol oxidation in the piping system.
27 open the controller and change the operational setting from automatic to off. Failure to turn of f the pump can quickly damage the pump motor , shaft, bearings or impeller . T wo T ank System Instructions: 6.4 100% Solar Operation Follow the instructions for single tank systems above.
28 8) SUMMER V ACA TION RECOMMENDA TIONS AND PROCEDURES Solar water heating systems can build up very high t e m p e r a t u r e s when there is no daily draw on the system. If a short summer vacation is planned the best way to dissi-pate heat in the system is to set the controller to the "on" position.
29 consumed so that the tank lining is not. At a certain point in the process, the anode rod is no longer completely effective and the corrosive processes begin to eat away at the tank's glass lining. In time the solar storage tank, like any other gas or electric water heater , will begin to leak.
30 see that they calibrate to 10K ohm resistance at 77°F . If you nd a defective sensor replace it immediately . Note that in a two tank system nighttime heat loss will be harder to detect, especially if you are operating in the solar preheat mode.
31 3) T ank and Line Thermometers: Used to determine proper system operation. Line thermometers will show an approximate 5 - 12° temperature dif ference between the collector supply and return lines on sunny days. In a single tank system the tank thermometer will read the temperature of the water after the mixing valve feeding your xtures.
32 22) T emperature and Pressure Relief V alve: Universally required by the plumbing code on water heaters. W ill automatically release and dump water at either 150 PSI of pressure or 210° F in temperature.
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36 IF YOU NEED SER VICE 1. Should you have any questions about your new water heater , or if it requires adjustment, repair , or routine maintenance, it is suggested that you fi r st co nt ac t y ou r i ns ta lle r , p lu mb i ng co nt ra ct or or pr ev iou sl y ag re ed up on service agency .
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