MODEL BTF-80 COMMERCIAL POWER VENT GAS WATER HEATER with Hot Surface Ignition Thank you for buying this energy efficient water heater. We appreciate your confidence in our products. You should thoroughly read this manual before installation and/ or operation of this water heater. Please pay particular attention to the important safety and operating instructions as well as the WARNINGS and CAUTIONS.
ROUGH-IN-DIMENSIONS TOP VIEW RECOVERY CAPACITIES Recovery capacity based on 80% thermal efficiency. FOREWORD The design of model BTF-80 complies with the current version of ANSI Z21.10.3/CSA 4.3 as automatic storage or automatic circulating tank type water heaters. carefully followed in all cases. Authorities having jurisdiction should be consulted before installations are made. The installation must conform to these instructions and the local code authority having jurisdiction.
GET TO KNOW YOUR WATER HEATER REPLACEMENT PARTS AND DELIMING PRODUCTS (A) (B) (C) (D) (E) (F) (G) (H) (J) (K) (L) (M) (N) Replacement parts and recommended delimer may be ordered through authorized servicers or distributors. Refer to the Yellow Pages for where to call or contact the water heater manufacturer at, 500 Tennessee Waltz Parkway, Ashland City, TN 37015.
LP gas must be used with great caution. It is highly explosive and heavier than air. It collects first in the low areas making its odor difficult to detect at nose level. If LP gas is present or even suspected, do not attempt to find the cause yourself. Go to a neighbor's house, leaving your doors open to ventilate the house, then call your gas supplier or service agent. Keep area clear until a service call has been made.
sides and rear, 5.5" (14 cm) from the front and 12" (30 cm) from the top. (Standard clearance.) If clearances stated on the heater differ from standard clearances, install water heater according to clearances stated on heater. • Do not cover the instruction manual. Keep it on the side of the water heater or nearby for future reference. • Do obtain new warning and instruction labels for placement on the blanket directly over the existing labels.
WATER CONNECTIONS of screens, louvers and grills should be considered. Screens shall not be of a mesh smaller than 1/4" (6.3 mm) square. If the free area is not known, the National Fuel Gas Code, ANSI Z223.1/NFPA 54 or the Natural Gas and Propane Installation Code CAN/CSA B149.1 recommends using figures of 20-25 percent free area for wood louvers or 60-75 percent for metal grills or louvers. Refer to figure 1 for typical installation. A suitable pipe thread sealant must be used to prevent leakage.
WARNING VENT HOOD(S) MAY BE EXTREMELY HOT DURING OPERATION. U.S.
MAY CAUSE IMPROPER OPERATION, FIRE OR EXPLOSION. NOT USE MATCHES CANDLES, FLAME OR OTHER SOURCES OF IGNITION TO LOCATE GAS LEAKS. All piping must comply with local codes and ordinances or with the National Fuel Gas Code NFPA 70 or the Natural Gas and Propane Installation Code CAN/CSA B149.1, whichever applies. RELIEF VALVE A NEW TEMPERATURE AND PRESSURE RELIEF VALVE COMPLYING WITH THE STANDARD FOR RELIEF VALVES AND AUTOMATIC GAS SHUT OFF DEVICES FOR HOT WATER SUPPLY SYSTEMS, ANSI Z21.22-CSA 4.
Gas Code, ANSI Z223.1/NFPA 54 or the Natural Gas and Propane Installation Code CAN/CSA B149.1. PLANNING THE VENT SYSTEM Plan the route of the vent system from the discharge of the blower to the planned location of the vent terminal. 1. Layout the total vent system to use a minimum of vent pipe and elbows. Take into consideration that an elbow will be necessary to make the first vent pipe connection to the power venter outlet (see Figure 6). FIGURE 4 2.
PREPARATION OF BLOWER ASSEMBLY 3/8" drain hose can be connected to the built-in drain port of the rubber boot on the blower assembly. For your convenience, the rubber boot is supplied with a removable cap on the built-in drain port. Prior to operating the water heater, make sure the removable cap is installed on the drain port (if a drain hose is not needed). 1. Check to make sure that the wire harness is attached to the gas valve and blower control box. 2.
CAUTION LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION. VERIFY PROPER OPERATION AFTER SERVICING.
NOTE: The equivalent length of pipe listed above are exclusive of the "45° Elbow" termination with installed screen. 5. The blower discharge boot is made to accept only straight sections of 3" pipe. To start off with an elbow, a short section of the furnished pipe, a minimum of 2 inches (5.1 cm), must be cut and glued into the end of the elbow that will mount on the discharge boot (see figure 6). Provide support for all pipe protruding through the roof. All piping should be properly secured.
F. Contact the manufacturer, supplier, or competent consulting agency if you have any questions about the application or installation of PVC and CPVC pipe. G. Take the time and effort to do a professional job. Shortcuts will only cause you problems and delays in start-up. By far, the majority of failures in PVC and CPVC systems are the result of shortcuts and/or improper joining techniques. 2.
Apply primer to the surface of the pipe and fitting socket with a natural bristle brush (see chart). This process softens and prepares the PVC or CPVC for the solvent cementing step. Move quickly and without hesitation to the cementing procedure while the surfaces are still wet with primer. The joint should not be disturbed immediately after the cementing procedure, and sufficient time should be allowed for proper curing of the joint.
FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. BEFORE OPERATING: ENTIRE SYSTEM MUST BE FILLED WITH WATER AND AIR PURGED FROM ALL LINES. A. This appliance does not have a pilot. It is equipped • with an ignition device which automatically lights the burner. Do NOT try to light the burner by hand. C. B. BEFORE OPERATING smell all around the appliance area for gas.
TEMPERATURE REGULATION 1. "Wake Up" the temperature indicators by holding down both the "COOLER" and "HOTTER" temperature adjustment buttons at the same time for one second (see Figure 10). One or two of the temperature indicators will light up. These indicators will only remain on for 30 seconds if no further buttons are pressed. After 30 seconds the control will go back to "Sleep" mode. 2. Release both of the temperature adjustment buttons. A.
POWER VENTER MAINTENANCE USERS OF THIS APPLIANCE SHOULD BE AWARE THAT GAS COMPONENTS WEAR OUT OVER A PERIOD OF TIME. THE GAS CARRYING COMPONENTS OF THIS APPLIANCE SHOULD BE INSPECTED FOR PROPER OPERATION PERIODICALLY BY A QUALIFIED SERVICE TECHNICIAN. The water heater must be inspected quarterly. Points of inspection are: 1. MOTOR - Motor must rotate freely. This is a sealed motor and no oiling is required. MAIN BURNER Check main burner every 12 months for proper flame characteristics.
If the heater is to be shut off and exposed to freezing temperatures, it must be drained. Water, if left in the tank and allowed to freeze, will damage the heater. If you are having a problem with your water heater and are not pleased with the service you received: • First, please contact your dealer or the authorized service agent in your area and explain to them why you are not satisfied. This will usually correct the problem. • Turn off the gas and cold water inlet valve to the heater.
WARNING: DO NOT BY-PASS ANY CONTROLS TO MAKE HEATER OPERATE. OPERATE ONLY AS WIRED FROM FACTORY. TROUBLE SHOOTING For your safety, water heater service should be performed only by a qualified service technician. Read the GENERAL SAFETY INFORMATION section first.
WARNING: DO NOT BY-PASS ANY CONTROLS TO MAKE HEATER OPERATE. OPERATE ONLY AS WIRED FROM FACTORY. TROUBLESHOOTING Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician. Read the GENERAL SAFETY INFORMATION section first. LED STATUS PROBLEM SOLUTION An open earth ground circuit to the 1. Check that the earth ground connection is ignition system. properly connected. 2.
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Model BTF Limited Warranty A. O. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater. 1. THE TANK If the glass-lined tank in this water heater shall prove upon examination by the warrantor to have leaked due to natural corrosion from potable water therein, during the first THREE years after initial installation, the warrantor will supply a complete new A. O. Smith water heater of equivalent size and current model.
