LIGHT DUTY COMMERCIAL ELECTRIC WATER HEATER A Spanish language version of these instructions is available by contacting the company listed on the rating plate. La versión espãnola de estas instrucciones se puede obtener al escribirle a la fábrica cuyo nombre aparece en la placa de especificaciones. INSTALLATION & OPERATING INSTRUCTION MANUAL THE WARRANTY ON THIS WATER HEATER IS IN EFFECT ONLY WHEN THE WATER HEATER IS INSTALLED AND OPERATED IN ACCORDANCE WITH LOCAL CODES AND THESE INSTRUCTIONS.
TABLE OF CONTENTS General Information ...................................................... 3 Installation ..................................................................... 4 Locating the Water Heater ........................................ 4 Water Connections .................................................... 5 Electrical Connections .............................................. 11 General Operation ......................................................... 16 Thermostat Adjustment ................
GENERAL INFORMATION This electric water heater’s design is certified by INTERTEK (ETL) and listed in accordance with UL 1453. CETL listed in accordance with Canadian National Standard C22.2, No. 110. This water heater must be installed in accordance with local codes. In the absence of local codes, install this water heater in accordance with the N.E.C. Reference Book (latest edition).
General Information continued- IMPORTANT Before proceeding, please inspect the water heater and it’s components for possible damage. DO NOT install any damaged components. If damage is evident, please contact the supplier where the water heater was purchased or the manufacturer listed on the rating plate for replacement parts. INSTALLATION Locating The Water Heater WARNING Water heaters are heat producing appliances.
Locating the Water Heater continued- These materials are corrosive at very low concentration levels with little or no odor to reveal their presence. NOTE: DAMAGE TO THE WATER HEATER CAUSED BY EXPOSURE TO CORROSIVE VAPORS IS NOT COVERED BY THE WARRANTY. DO NOT OPERATE THE WATER HEATER IF EXPOSURE HAS OR WILL OCCUR. DO NOT STORE ANY POTENTIALLY CORROSIVE COMPOUNDS IN THE VICINITY OF THE WATER HEATER.
Water Connections continued- CAUTION If sweat fittings are to be used, DO NOT apply heat to the nipples on top of the water heater. Sweat the tubing to the adapter before fitting the adapter to the water connections. It is imperative that heat is not applied to the nipples containing a plastic liner. IMPORTANT FAILURE TO INSTALL AND MAINTAIN A NEW, LISTED 3/4” X 3/4” TEMPERATURE-PRESSURE RELIEF VALVE WILL RELEASE THE MANUFACTURER FROM ANY CLAIM WHICH MIGHT RESULT FROM EXCESSIVE TEMPERATURE AND PRESSURES.
Water Connections continued- WARNING For protection against excessive temperatures and pressure, install temperature and pressure protective equipment required by local codes, but not less than a combination temperature and pressure relief valve certified by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment or materials, as meeting the Requirements for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems, ANSI Z21.
Water Connections continued- CAUTION INCREASING THE THERMOSTAT SETTING ABOVE THE PRESET TEMPERATURE MAY CAUSE SEVERE BURNS AND CONSUME EXCESSIVE ENERGY. HOTTER WATER INCREASES THE RISK OF SCALD INJURY. This water heater can deliver scalding temperature water at any faucet in the system. Be careful whenever using hot water to avoid scalding injury. Certain appliances, such as dishwashers and automatic clothes washers, may require increased temperature water.
Water Connections continued- Upright Models (See Figure 1A & 1B) The hot and cold water connections are identified on the top of the water heater (See figure 1A). For bottom inlet models (-503 models), the cold water inlet is located on the side of the drain valve (see figure 1B). Connect the hot and cold water lines to the installed nipples using unions. Install a listed temperature-pressure relief valve in the remaining fitting.
Water Connections continued- Utility Models (See Figure 2) Utility models are supplied with inlet and outlet nipples located in a plastic bag attached to the side of the water heater. The hot and cold water connections are identified on the side of the water heater. Apply appropriate amount of thread sealant to the provided nipples and install them into the side of the tank. For 20 gallon utility models, install the supplied anode/nipple combination at the HOT outlet location.
Electrical Connections Before any electrical connections are made, be sure that the water heater is full of water and that the manual shut-off valve in the cold water supply line is open. Check the rating plate and wiring diagram before proceeding. This electric water heater was built and wired in accordance with the INTERTEK testing approvals requirements.
Electrical Connections continued- Figure 3A Figure 3B 12
Electrical Connections continued- Figure 4 Figure 4A 13
Electrical Connections continued- The following tables show the recommended fuse size for the maximum wattage supplied to the water heater. The maximum wattage and rate voltage are shown on the water heater data plate. BRANCH CIRCUIT SIZING GUIDE Watt Load 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 9000 10000 11000 Recommended over current protection rating 120V 15 20 30 30 208V 15 15 15 20 20 25 30 30 35 35 50 60 240V 15 15 15 15 20 20 25 30 30 30 45 55 30 Copper wire size – AWG Based on N.E.
Electrical Connections continued- Element Wattage 1500/1500 2000/2000 2500/2500 3000/3000 3500/3500 4000/4000 4500/4500 5000/5000 5500/5500 6000/6000 SINGLE PHASE FULL LOAD CURRENT DRAW (SIMULTANEOUS OPERATION) 120V 208V 240V 277V 380V 415V 480V 25.0 33.4 41.6 N/A N/A N/A N/A N/A N/A N/A 6.2 8.4 10.4 12.6 14.6 16.6 18.8 20.8 23.0 25.0 14.4 19.2 24 28.8 33.6 38.4 43.2 48.0 N/A N/A 12.6 16.6 20.8 25.0 29.2 33.4 37.6 41.6 45.8 N/A 10.8 14.4 18.0 21.6 25.2 28.8 32.4 37.6 39.8 43.4 7.8 10.6 13.2 15.
GENERAL OPERATION Before closing the switch to allow electric current to flow to the water heater, make certain that the water heater is full of water and that the cold water inlet valve is open. Complete failure of the heating element(s) will result if they are not totally immersed in water at all times. Failure of the element(s) due to dry-firing is not covered by warranty. When the switch is closed, the operation of this electric water heater is automatic.
The temperature of the water can be changed by adjusting the thermostat(s). Before any work is done on the water heater, disconnect all power to the water heater by opening the switch at the main electrical circuit breaker or fuse box. Remove the access panels or front panel on table tops, fold the insulation outward away from the controls. Set the thermostat(s) to the desired water temperature using a screwdriver to move the thermostat dial.
MAINTENANCE IMPORTANT The water heater should be inspected at a minimum of annually by a qualified service technician for damaged components. DO NOT operate this water heater if any part is found damaged. Shut off the electric power whenever the water supply to the water heater is off. Shut off the electric power and water supply, drain the heater completely to prevent freezing whenever the building is left unoccupied during the cold weather months.
Maintenance continued- WARNING When lifting lever of temperature-pressure relief valve, hot water will be released under pressure. Be certain that any released water does not result in bodily injury or property damage. 4. If the combination temperature and pressure relief valve on the appliance discharges periodically, this may be due to thermal expansion in a closed water supply system. Contact the water supplier or local plumbing inspector on how to correct this situation.
Maintenance continued- Contact your local plumbing supplier or plumbing professional for replacement parts or contact the company at the address displayed on the rating plate of the water heater. For faster and better service, please provide the part name, model, and serial number(s) of the water heater(s) when ordering parts. READ THE WARRANTY FOR A FULL EXPLANATION OF THE LENGTH OF TIME THAT PARTS AND THE WATER HEATER ARE WARRANTED. Manufactured under one or more of the following U.S.
