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                        RUF 100 199 SERIES 100 AND 101 
COMMERCIAL GAS WATER HEATER
GAS-FIRED POWER BURNER
FOR DOMESTIC HOT WATER
  • INSTALLATION  •  OPERATION  •  SERVICE  •  MAINTENANCE • LIMITED WARRANTY
     WARNING:  If the information in these 
instructions is not followed exactly, a fire 
or explosion may result causing property 
damage, personal injury or death.
–   Do not store or use gasoline or other  
 flammable vapors and liquids in the   
 vicinity of this or any other appliance.
–   WHAT TO DO IF YOU SM
                    
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                        RUF 100 199 ROUGH-IN-DIMENSIONS GAS VALVE PIPING  RUF - 199 1/2" NPT Table 1.  RECOVERY CAPACITIES - NATURAL GAS / L.P.           Approx.                  Input  Gas  Gallon        TEMPERATURE RISE - DEGREES °F - GALLONS PER HOUR    Model BTU/Hr. Usage Capacity 30 40 50 60 70 80 90 100 110 120 130 140  RUF 199 199,900 nat/lp 100 767 575 460 384 329 288 256 230 209 192 177 164          Approx.                   Gas    Liter    TEMPERATURE RISE - DEGREES C - Liters PER HOUR     Model kW-Hr Usage C
                    
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                        TABLE OF CONTENTS                                                                                                                                                                                               PAGE PAGE ROUGH-IN DIMENSIONS ................................................................. 2 Gas Valves .................................................................................... 14 FOREWORD ..................................................................................... 
                    
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                        temperature be set for the lowest temperature which satisfies your hot water  DISHWASHING MACHINE REQUIREMENT needs. This will also provide the most energy efficient operation of the water  heater and minimize scale formation. All dishwashing machines meeting the National Sanitation Foundation  requirements are designed to operate with water flow pressures  SETTING THE WATER HEATER TEMPERATURE AT 120°F/49°C WILL  between 15 and 25 pounds per square inch (103 Kpa and 173 Kpa).   REDUCE THE RISK O
                    
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                        LOCATING THE HEATER  WARNING THIS WATER HEATER IS A CONDENSING UNIT AND REQUIRES A DRAIN   WARNING THERE IS A RISK IN USING FUEL BURNING APPLIANCES SUCH AS TO BE LOCATED IN CLOSE PROXIMITY TO ALLOW THE CONDENSATE  GAS WATER HEATERS IN ROOMS, GARAGES OR OTHER AREAS TO DRAIN SAFELY. THE CONDENSATE DRAINS FROM THE UNIT AT  WHERE GASOLINE, OTHER FLAMMABLE LIQUIDS OR ENGINE THE EXHAUST ELBOW LOCATED AT THE BOTTOM OF THE UNIT. NOTE:  DRIVEN EQUIPMENT OR VEHICLES ARE STORED, OPERATED OR  IT IS IMPORTAN
                    
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                        If the confined space is within a building of tight construction, air for combustion  HARD WATER and ventilation must be obtained from outdoors.  When directly communicating  with the outdoors through vertical ducts, two permanent openings, located  Where hard water conditions exist, water softening or the threshold type of  in the above manner, should be provided.  Each opening should have a free  water treatment is recommended. This will protect the dishwashers, coffee  area of not less than o
                    
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                        INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS For all side wall terminated, horizontally vented power vent, direct vent, and power direct vent gas fueled water heaters installed  in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by  the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the  area of the venting, including but not limited to 
                    
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                        U.S. POWER VENT FIGURE  5. CAUTION TO PREVENT EXHAUSTING PRODUCTS FROM CIRCULATING TO THE AIR INTAKE IN WINDY/COLD   AREAS, THE MAXIMUM PRACTICAL DISTANCE BETWEEN THESE TWO TERMINALS IS RECOMMENDED. U.S. DIRECT VENT FIGURE  6. CAUTION TO PREVENT EXHAUSTING PRODUCTS FROM CIRCULATING TO THE AIR INTAKE IN WINDY/COLD   AREAS, THE MAXIMUM PRACTICAL DISTANCE BETWEEN THESE TWO TERMINALS IS RECOMMENDED. 8                                                                                                    
                    
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                        IMPORTANT The vent system must terminate so that proper clearances are maintained  as cited in local codes or the current editions of the National Fuel Gas Code,  ANSI Z223.1/NFPA 54. Do not terminate the exhaust vent terminal over public area where condensate  or vapor can cause nuisance or hazard. Plan the vent system layout so that proper clearances are maintained from  plumbing and wiring. Vent pipes serving power vented appliances are classified by building codes  as "vent connectors". Requ
                    
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                        5. Glue the intake vent terminal to the section of the pipe. VERTICAL  VENT  TERMINAL INSTALLATION 6. Slide the wall plate over the pipe to stop against intake vent terminal. IMPORTANT 7. Place a bead of caulking (not supplied) around the gap between the pipe  WHEN TERMINATING THROUGH A ROOF, THE FOLLOWING  and the wall. Place some of the caulking on the back of the plate to hold  SPECIFICATIONS PERTAINING TO TERMINAL LOCATION MUST BE  it against the wall after installation. FOLLOWED. 8. If the 
                    
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                        NOTE:  for Water Heaters in locations with high ambient temperatures  INSTALLATION OF VENT SYSTEM (above 100°F or 38°C) and/or insufficient dilution air, it is recommended that  CPVC or ABS pipe and fittings (MUST USE SUPPLIED VENT TERMINAL)  be used.  WARNING THE OPTIONAL INTAKE VENTING ARRANGEMENT AND THE  4. It is important that condensate not be allowed to buildup in the exhaust  EXHAUST VENTING ARRANGEMENT MUST BE INSTALLED TO  vent pipe. To prevent this from happening the pipe should be in
                    
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                        LOW GAS PRESSURE SWITCH CONTROLS AND SWITCHES (SEE FIGURE 12) All models are provided with four pressure switches. These switches are  The Low Gas Switch (LGS) is a single-pole, normally open pressure switch  essential to the safe and proper operation of the unit. All switches are wired  that will close its contacts when a rising pressure of 5.0 in. (1.25Kpa)  W.C.  in series. The controller is set up to shut the unit down whenever there is a  is encountered. The contacts will open when the pres
                    
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                        CONNECTION OF GAS PIPE  WARNING THE HEATER IS NOT INTENDED FOR OPERATION AT HIGHER THAN  1. When connecting gas pipe to unit, apply wrench to flange only. Note:   10.5" (2.59 KPa) WATER COLUMN SUPPLY GAS PRESSURE. HIGHER   Do not use wrench on gas valve or gas bracket.  See Figure 14. GAS SUPPLY PRESSURES REQUIRE SUPPLEMENTAL REDUCING  SERVICE REGULATION. EXPOSURE TO HIGHER GAS SUPPLY  PRESSURE MAY CAUSE DAMAGE TO THE GAS CONTROLS WHICH  2. PERFORM THE GAS LEAK TEST ANY TIME WORK IS DONE ON A GA
                    
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                        DISCONNECT THE APPLIANCE AND ITS MANUAL GAS SHUTOFF  RELIEF VALVE VALVE FROM THE GAS SUPPLY PIPING SYSTEM DURING ANY  SUPPLY PRESSURE TESTING EXCEEDING 1/2 PSIG (3.45Kpa). GAS  This heater is equipped with an approved temperature and pressure relief  SUPPLY LINE MUST BE CAPPED WHEN DISCONNECTED FROM THE  valve. ASME ratings cover pressure relief. CSA ratings cover release rate  HEATER. FOR TEST PRESSURES OF 1/2 PSIG (3.45Kpa) OR LESS, THE  with temperature actuation. APPLIANCE NEED NOT BE DISCON
                    
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                        3. This unit may never be connected to any existing heating system or  CAN CAUSE THE CONTROLLER TO MALFUNCTION. A HIGH  QUALITY POWER CONDITIONER MUST BE INSTALLED IF THE   component(s) previously used with non-potable water heating   ABOVE CONDITIONS EXIST. MALFUNCTIONS CAUSED BY A   appliance. POOR ELECTRICAL SUPPLY ARE NOT COVERED UNDER YOUR  4. When the system requires water for space heating at temperatures WARRANTY. higher than required for domestic water purposes, a tempering  valve must 
                    
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                        USING THE ELECTRONIC CONTROLLER 1. Overview Interaction with the water heater controller is done through an up, a down, and three operation buttons. These buttons are illustrated to the right. Operation  of the three lower buttons is defined immediately above them on the screen. The [UP] and [DN] buttons are used to navigate through the menus and make  adjustments to the water heater.   While the water heater is operating, the user interface will display the desktop screen (if there are no activ
                    
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                        2. Operating States In the main desktop screen, there are some specific Operating States that are indicated on the status line. These are summarized below: ACTION: 3. Adjusting the Operating Set Point Press Change then use the UP and DOWN  buttons to change the Set  The Operating Set Point of this water heater determines the regulated  Point. temperature for the water in the tank. This parameter is adjusted in the  Temperature menu. Items in this menu allow you to monitor different tem- perature
                    
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                        There are two types of conditions that can occur during operation. These  4.  Changing the Display Units are Alerts and Faults: The display interface to the heater has the option of selecting between de- grees Fahrenheit and degrees Celsius for temperature displays. This can be  • Alerts:  This is a non-safety related condition that the control has detected  found in the “Display Settings” menu. Also in this menu, you may adjust how  that may cause the water heater to operate in a less than opti
                    
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                        ACTION:  7.  Viewing the Fault History To get to the current fault information screen, press Menu. The controller for this water heater will store a history of ten of the last Fault  and Alert conditions that occurred.  This is stored in the Fault History.   Along  DISPLAY: with all the information about the fault, including a estimate time of when the  fault occurred, information regarding the advanced diagnostics for that fault  can be accessed at any time.   ACTION:  Press the DOWN button for
                    
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                        WITH A RISK OF FIRE OR EXPLOSION. SEE THE FRONT PAGE FOR  OPERATING INSTRUCTIONS STEPS TO BE TAKEN. IMPORTANT DO NOT USE THIS HEATER IF ANY PART HAS BEEN UNDER  IT IS RECOMMENDED THAT A QUALIFIED SERVICE TECHNICIAN  PERFORM THE INITIAL FIRING OF THE HEATER. AT THIS TIME THE WATER. IMMEDIATELY CALL A QUALIFIED SERVICE TECHNICIAN  TO INSPECT THE HEATER AND TO REPLACE ANY PART OF THE  USER SHOULD ASK THE TECHNICIAN ANY QUESTIONS IN REGARD  CONTROL SYSTEM AND ANY GAS CONTROL WHICH HAS BEEN  TO THE O