MODELS TPG-140-140 thru 600-2500 INCLUDING TPX/TPO & TPD COMMERCIAL GAS, OIL AND GAS/OIL TANK-TYPE WATER HEATERS • INSTALLATION • OPERATION • SERVICE • MAINTENANCE • LIMITED WARRANTY ASME CAUTION TEXT PRINTED OR OUTLINED IN RED CONTAINS INFORMATION RELATIVE TO YOUR SAFETY. PLEASE READ THOUROUGHLY BEFORE USING APPLIANCE. WARNING – PROPANE MODEL Water heaters for propane gas are different from natural gas models.
FOREWORD This manual is intended to be used in conjunction with other literature provided with the heater. This includes power burner and related gas control information. It is important that this manual and the additional publications be reviewed in their entirety before beginning any work. ARRANGEMENT REQUIREMENTS RECOMMENDATIONS. AND SERVICE In the absence of local codes, the installation must comply with the instruction as outlined in the latest publication of ANSI booklet NFPA-54/ANSI Z223.
GENERAL SAFETY INFORMATION The venting of the water heater should be inspected by a qualified service technician at the time of installation and periodically thereafter to ensure a down-draft condition does not exist. PRECAUTIONS DO NOT OBSTRUCT THE FLOW OF COMBUSTION AND VENTILATING AIR. ADEQUATE AIR FOR COMBUSTION AND VENTILATION MUST BE PROVIDED FOR SAFE OPERATION. DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN UNDERWATER.
Note: Some gas utility companies derate the heating value of the supplied gas at high elevations. Your authorized State Start-Up Agent must adjust for actual heating valve of the gas at the time of start-up. The water temperature is controlled by two thermostats. One thermostat is located near the top of the tank and the other is in the lower part of the tank. The upper thermostat must be set at least 5°F higher than the lower thermostat.
A clearance of 24” should be maintained from serviceable parts, such as relief valve, power burner, thermostat and drain valve. The latest version of the National Electrical Code, NFPA No. 70. In Canada refer to Canadian Electrical Code C 22.1, from National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269-9101.
VENT CONNECTOR UNDESIRABLE OPENINGS, CAUSING POOR COMBUSTION. SOOTING MAY RESULT WITH AN INCREASED RISK OF ASPHYXIATION. The chimney vent connector diameter should be the same size as the heater flue outlet, see table 1. A minimum rise of 1/4” per foot of horizontal connector length must be maintained between the heater and chimney opening, fig. 2. The connector length should be kept as short as possible.
TABLE 2 CAPACITY OF PIPE - NATURAL GAS IN CUBIC FEET PER HOUR Maximum Based Upon Pressure Drop of 0.3” w.c. and Specific Gravity of 0.60 and Maximum Gas Pressure of .5 psig.
TABLE 3 EQUIVALENT LENGTH OF FITTINGS IN FEET Pipe Size (IPS) 1 1.25 1.5 2 2.5 3 Std. Tee through side 5.5 7.5 9.0 12.0 14.0 17.0 Std. E11 2.7 3.7 4.3 5.5 6.5 8.0 45°F E11 1.2 1.6 2.0 2.5 3.0 3.7 Plug Cock 3.0 4.0 5.5 7.5 9.0 12.0 PURGING Gas line purging is required with new piping or systems in which air has entered. 4 22.0 12.0 5.0 16.0 CAUTION PURGING SHOULD BE PERFORMED BY PERSONS EXPERIENCED IN THIS TYPE GAS SERVICE.
TYPICAL WIRE DIAGRAM TPG, 270 - 2,500 KBTUH TPO, 800 - 2,500 KBTUH TPD, 400 - 2,500 KBTUH TYPICAL WIRE DIAGRAM TPG, 140 - 255 KBTUH 9
TYPICAL WIRE DIAGRAM TPD, 140 - 300 KBTUH TYPICAL WIRE DIAGRAM TPO, 140 - 720 KBTUH 10
TWO UNIT MANIFOLD INSTALLATION The time to ask any questions you may have about your unit is when the State Authorized TPG/TPO/TPD Start-Up Agent is there. Please do not hesitate to ask the agent any questions which you may have regarding the units start-up, operation or maintenance. Assure water flow balance of all units. Without this balance, the full water heating and storage potential of the system cannot be achieved. Otherwise, the units with the higher water flow may have a shortened life.
DRAINING Suggested safety device test procedures are: A. While heater is operating, turn valve, main burner and pilot gas line manual gas cocks to the OFF position. Burner should shutdown within 3-4 seconds and lockout on flame failure, requiring reset of the flame safeguard device. The heater must be drained if it is to be shut down or exposed to freezing temperatures. Maintenance and service procedures may also require draining the heater. 1. Tun off the heater electrical disconnect switch. B.
The depth of lime build-up should be measured periodically. Heaters will have about 3” of lime build-up when the level of lime has reached the bottom of the cleanout opening or about 1” of lime build-up if it has reached the drain valve opening. A schedule for deliming should be set-up; based on the amount of time it would take for a 1” build-up of lime. Example 1 = Initial inspection, after 1 year, shows 1/2” of lime accumulation. Therefore, the heater can be delimed once a year.
6. Using a wire brush, remove soot from flue passages in heater tank. • If the heater was installed when incoming water temperature was warm, colder water creates the effect of less hot water. 5. Look for hot water wastage and leaking or open hot water faucets. CAUTION While cleaning tank flue passages, care must be taken that brush does not come in contact with the combustion chamber lining as damage could occur. 6. Sediment or lime scale may be affecting water heater operation.
Excessive water pressure is the most common cause of relief valve leakage. It is often caused by a “closed system”. If a check valve is in the inlet system it will not permit the expanded hot water volume to equalize pressure with the main. The relief valve must release this water or the water heater or plumbing system will be damaged. provision to avoid water logging.
Model TPG/TPX/TPO/TPD Limited Warranty CERTIFIED FACTORY START - UP REQUIRED To activate your warranty, contact your local sales representative or Authorized Start-up Agent to arrange for a FREE Certified Start-up. State Water Heaters, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater. 1.