Rheem RS80-40BP manual

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 . This manual also includes[...]

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: ____________________________________ Serial Number of Solar System T ank: _____________________________________ Model Number of Collector Panel #1: _______________________[...]

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. As with an electric or gas water heater , your new solar water heating [...]

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. If the sun shines brightly between I0 am and 3 pm, enough heat will normally be generated to keep the water hot throughout the rest of the day and night[...]

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 than 5 seconds 145°F Less than 3 seconds 150°F About 1½ seconds 155°F About 1 second T able courtesy of Shriners Burn Institute The chart shown abo[...]

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. Be sure to read and understand the entire Use and [...]

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". Solar water heating systems help to reduce our nation’ s dependence on polluting fossil fuels, minimize the greenhouse gas emissions associated with conventional wat[...]

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. The system will, (1) accommodate 100% solar operation, (2) serve as a preh[...]

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 8.1 and 8.2 below). 3) INST ALLA TION REQUIREMENTS - GENERAL 3.1 The contractor shall obtain all requ[...]

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.m. and 3:00 p.m. on any day of the year . be unshaded for the [...]

11 4.2 Collector T ilt Optimal annual efciency 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. The solar collectors in a two collector st[...]

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. T[...]

13 that all roof penetrations required to plumb and mount the solar collector are properly ashed and sealed in accordance with standard roong 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. In certain areas of the count[...]

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 . Use 3/4" Armaex (or similar) exible elastomeric closed cell thermal insulation.[...]

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. T o maximize sensor accuracy , attach the anged portion of the sensor to the Rheem collector header pipe with a stainless st[...]

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. Use only brass nipple[...]

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 . The circulation pump shall be the Grundfos mode[...]

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.12 and 14) so that the pump can be isolated from the [...]

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 . The 3/4" cold water supply line to the solar[...]

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 . A 230 volt control and c[...]

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. 4.1 1.2 Fill and pressurize the solar collector loop[...]

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. An inexpensive ow meter such as manufactured by Blue White Industries or Letro is recommen[...]

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. Connect the discharge side of the[...]

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. W ith both charge faucets now open, run the Flojet pressure pump until th[...]

25 as this will adversely impact the relative heat transfer efciency 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 specications. As conditions are not wit[...]

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. 5) SYSTEM ST ART -UP PROCEDURES Throughout the installati[...]

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. Y ou also must change the position of the three way ball valv[...]

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. The circulating pump will run twent[...]

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. The process is not reversible and the tank mus[...]

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. Check the line thermometers (No. 3) in the collector loop piping to detect night thermosiphoning.[...]

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. In t[...]

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. (Pr ovided) 23) Cold W ater Supply Line Isolation Ball V alve: When open allows potable water to ll the solar storage tank or back-up water[...]

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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 . In the event the firm has moved, or is unavailable, ref[...]