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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
