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®
CYCLONE Xi Model BTH 300A, 400A, 500A
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
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ROUGH-IN-DIMENSIONS GAS VALVE PIPING BTH-300 1 1/4" NPT BTH-400 1 1/4" NPT BTH-500 1 1/2" NPT TABLE 1 RECOVERY CAPACITIES. U.S. Gallons/Hr and Litres/Hr at TEMPERATURE RISE INDICATED TYPE OF INPUT Approx. F° 20F° 30F° 40F° 50F° 60F° 70F° 80F° 90F° 100F° 110° 120F° 130F° 140F° MODEL GAS BTUH KW Capacity C° 11C° 17C° 22C° 28C° 33C° 39C° 44C° 50C° 56C° 61C° 67C° 72C° 78C° 300,000 130 US Gals. GPH 1746 1164 873 699 582 499 436 388 349 318 291 269 250 BTH-300 NAT
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TABLE OF CONTENTS ROUGH-IN DIMENSIONS ......................................................................... Water (Potable) Heating & Space Heating ..........................................7 FOREWORD ............................................................................................. Heater Wiring .................................................................................7-9 FEATURES ........................................................................................
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“AT A GLANCE” BTH 300/400/500 QUICK INSTALLATION TIPS Horizontal Sidewall Venting Vertical Rooftop Venting 4
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The temperature may be adjusted from 80°F/27°C to 180°F/82°C. Valves for reducing point-of-use temperature by mixing cold The temperature was adjusted to 120°F/49°C before the heater and hot water are available (see Figure 2). Also available are was shipped from the factory. It is recommended that lower water inexpensive devices that attach to faucets to limit hot water temperatures be used to avoid the risk of scalding. It is further temperatures. Contact a licensed plumber or the local plum
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THE HEATER SHALL BE LOCATED OR PROTECTED SO IT IS NOT CIRCULATING PUMP SUBJECT TO PHYSICAL DAMAGE BY A MOVING VEHICLE. A circulating pump is used when a system requires a circulating loop or there is a storage tank used in conjunction with the heater. Refer to the DO NOT LOCATE THE HEATER WHERE NOISE FROM THE piping diagrams at rear of manual for electrical hookup information and EXHAUST OR INTAKE WILL BE OBJECTIONABLE. THIS install in accordance with the current edition of the National El
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MECHANICAL EXHAUSTING OF ROOM AIR CLEARANCES Where an exhaust fan is installed in the same room with a heater, These heaters are approved for installation on combustible flooring sufficient openings for air must be provided in the walls. UNDERSIZED in an alcove when the minimum clearances from any combustion OPENINGS WILL CAUSE AIR TO BE DRAWN INTO THE ROOM construction are followed as indicated in Figure 4. THROUGH THE HEATER’S VENTING SYSTEM, CAUSING POOR COMBUSTION. SOOTING MAY RESULT
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EXEMPTIONS INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4: For all side wall terminated, horizontally vented power vent, direct vent, and power direct vent gas fueled water heaters installed in every 1. The equipment listed in Chapter 10 entitled “Equipment Not dwelling, building or structure used in whole or in part for residential Required To Be Vented” in the most current edition of NFPA 54 purposes,
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US DIRECT VENT 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. CANADIAN DIRECT VENT FIGURE 5. 9
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US HORIZONTAL VENT 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. CANADIAN HORIZONTAL VENT FIGURE 6. 0
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WARNING WARNING NEVER OPERATE THE HEATER UNLESS IT IS VENTED TO THE WHEN THE UNIT IS TO BE SETUP AS A DIRECT VENT, OUTDOORS AND HAS ADEQUATE AIR SUPPLY TO AVOID RISKS OF THE INTAKE GUARD AND THE BALANCE PLATE MUST BE IMPROPER OPERATION, FIRE, EXPLOSION OR ASPHYXIATION. REMOVED. THE INLET VENT PIPE MAY THEN BE GLUED TO THE AIR INTAKE (see Figure 8) PROVIDED ON THE UNIT. VENT PIPE TERMINATION NOTE: Before installing venting, determine place of vent pipe termination. See Figure 5 and 6 bef
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Slide the pipe through the wall and insert into coupling on the 2. The horizontal centerline of the intake vent terminal may not be other side of the wall, making sure that the vent terminal ends located lower than the horizontal centerline of the exhaust vent up pointed in the correct position. See Figure 10. terminal (see Figure 9). EXHAUST VENT TERMINAL FIGURE 9. INSTALLATION SEQUENCE For installations in the City of Los Angeles, California Category IV PVC Pipe such as that manufactured
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2. Drill a pilot hole approximately 1/4" (6 mm) outside of the marked 3. The unit is certified to a minimum amount of 4-inch pipe for circle. This pilot hole is used as a starting point for a saws- the exhaust venting arrangement of 15-equivalent feet. This is all or sabre saw blade. Cut around the marked circle staying the minimum amount of pipe required for the exhaust venting approximately one quarter inch outside the line. (This will allow arrangement. The intake venting arrangement is
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contacts are normally open. When the fan increases the pressure VENT PIPE PREPARATION in the burner, the pressure switch will allow the electrical contacts to close. The pressure switch is connected to the burner tap by a . INITIAL PREPARATION piece of tygon tubing. This tubing must be connected in order for the switch to change the electrical contacts. The controller requires A. Make sure the solvent cement you are planning to use is that the electrical contacts on this air flow switc
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CAUTION WARNING THE WATER HEATER IS POLARITY SENSITIVE. BEFORE THE HEATER IS NOT INTENDED FOR OPERATION AT HIGHER APPLYING ELECTRICITY TO THIS HEATER BE CERTAIN THAT THAN 11.0" WATER COLUMN (2.74 Kpa) FOR NATURAL GAS AND SUPPLY NEUTRAL WIRE TO GROUND CHECK INDICATES ZERO 14.0" W.C. (3.49kPa) FOR PROPANE GAS SUPPLY PRESSURE. VOLTAGE. HIGHER GAS SUPPLY PRESSURES REQUIRE SUPPLEMENTAL REDUCING SERVICE REGULATION. EXPOSURE TO HIGHER GAS SUPPLY PRESSURE MAY CAUSE DAMAGE TO THE GAS HOT SUR
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To prevent damage, care must be taken not to apply too much torque RELIEF VALVE when attaching gas supply pipe to gas valve inlet. This heater is equipped with an approved temperature and pressure Apply joint compounds (pipe dope) sparingly and only to the relief valve. ASME ratings cover pressure relief. CSA ratings cover male threads of pipe joints. Do not apply compound to the first release rate with temperature actuation. two threads. Use compounds resistant to the action of liquefied
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codes or contact the water supplier or local plumbing inspector on CLEAN ELECTRICITY FOR PROPER OPERATION. INSTALLING how to control this situation. THE HEATER ON A BRANCH CIRCUIT THAT HAS ELECTRONIC NOISE, IS SUBJECT TO FLUCTUATIONS IN VOLTAGE LEVEL OR HAS AN APPLIANCE WHICH GENERATES EMF OF WATER (POTABLE) HEATING AND SPACE HEATING RFI INTERFERENCE CAN CAUSE THE CONTROLLER TO MALFUNCTION. A HIGH QUALITY POWER CONDITIONER 1. All piping components connected to this unit for space heating
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BTH 300 WIRING DIAGRAM FIGURE 15. 8
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BTH 400 AND 500 WIRING DIAGRAM FIGURE 16. 9
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inside the tank. The second temperature on this screen is the OPERATION Operating Set Point. The Operating Set Point is the temperature at which the water heater will maintain the water inside the tank. SEQUENCE OF OPERATION The third line on the screen is a text description of the Operational State of the water heater (please see Operating States for more Typical Control/Appliance Operating Sequence details). 1. When the control is powered, it should display the unit model, water temperat
