mini-tank electric water heaters chauffe-eau électriques à miniréservoir calentadores de agua eléctricos de minitanque Meets ASHRAE 90.1 standard INSTALLATION MANUAL FOR DIRECTIVES D'INSTALLATION POUR INSTRUCCIONES DE SEGURIDAD IMPORTANTES GL2.5Ti GL4Ti GL8Ti CONTROLLED ENERGY CORPORATION 340 Mad River Park Waitsfield, Vermont 05673 800-798-8161 · www.Protankless.com IMPORTANT SAFETY INSTRUCTIONS WARNING When using electrical appliances, safety precautions to reduce the risk of fire, electric shock or injury to persons should be followed, including: 1. 2. 3. 4. 5. 6. 7. 8. 9. READ ALL INSTRUCTIONS BEFORE USING THIS WATER HEATER. This water heater must be grounded. Connect only to properly grounded outlet. See "GROUNDING INSTRUCTIONS" found on "INSTALLATION INSTRUCTIONS". Install or locate this water heater only in accordance with the provided installation instructions. Use this water heater only for its intended use as described in this manual. Do not use an extension cord set with this water heater. If no outlet is available adjacent to the water heater, contact a qualified electrician to have one properly installed. As with any appliance, close supervision is necessary when used by children. Do not operate this water heater if it is not working properly or if it has been damaged or dropped. This water heater should be serviced only by qualified service personnel. Contact a service person for examination, repair or adjustment. Failure to service the anode rod at least once a year could cause the tank to fail and leak. Any water heater should be installed in such a manner that if it should leak, the resulting flow of water will not cause damage to the area in which it is installed. National Plumbing codes require a drain pan for any water heater installation. Failure to install one is the sole responsibility of owner and/or installer. Reference UPC 2000 (Uniform Plumbing Code) Section 510 - Protection from Damage or IPC 200 (International Plumbing Code) Section 504- Safety Devices. KEEP THESE INSTRUCTIONS AT HAND SAVE THESE INSTRUCTIONS Technical data MODEL Capacity Voltage Power at 120 Vac Weight Amperage Phases gallons Vac Watts Lbs Amps 1 150 15.5 GL 2.5 Ti 2.75 1500 GL 4 Ti 3.85 1500 150 17.3 1 GL 8 Ti 7.0 1500 150 29.5 1 110/120 for each model Maximum Water pressure psi 12.50 for each model WARNING The installer should review the contents of this manual with the owner upon completion of installation, and the manual should be left with the owner and placed in a location close to the installation. 1 FIG. 1/1 Hot water outlet 1/2 NPT male Temperature & pressure relief valve, 3/4 NPT male Cold water inlet 1/2 NPT male 3/4 NPT female tapping for relief valve Temperature & pressure relief valve discharge line to drain COMPONENT PARTS OF GL 2.5Ti - 4Ti FIG. 1/2 Temperature & pressure relief valve, 3/4 NPT male COMPONENT PARTS OF GL 8Ti (Horizontal installation) Hot water outlet 3/4 NPT male 3/4 NPT male plug 3/4 NPT female tapping for relief valve Temperature & pressure relief valve discharge line to drain Cold water inlet 3/4 NPT male 3/4 NPT female tapping FIG. 1/3 Hot water outlet 3/4 NPT male Temperature & pressure relief valve, 3/4 NPT male Cold water inlet 3/4 NPT male COMPONENT PARTS OF GL 8Ti (Vertical installation) 3/4 NPT female tapping for relief valve Temperature & pressure relief valve discharge line to drain 3/4 NPT male plug 3/4 NPT female tapping 2 FIG. 2/1 14" 3 3/4" DIMENSIONS FOR GL 2.5Ti - GL 4Ti 10 1/4" 6" 1/2 NPT MALE 3 1/2" 12 1/4" GL 2.5 7 1/2" 3" 1" 5 1/2" 2 1/2" 14" GL 4 FIG. 2/2 DIMENSIONS FOR GL 8Ti (HORIZONTAL INSTALLATION) 14 1/2" 8 1/2" 4 1/2" 3/4 NPT MALE 17 1/2" 17 1/2" 14 1/2" 8 1/2" 4 1/2" 1" 17 1/2" 3" 11 1/2" FIG. 2/3 DIMENSIONS FOR GL 8 Ti (VERTICAL INSTALLATION) 11 1/2" 3/4 NPT MALE 6 1/2" 2 1/2" 17 1/2" 3 General remarks CAUTION The manufacturer cannot be responsible for the damages caused by improper installation or by failure to follow instructions in this pamphlet. Comply with the installation instructions before completing electric connection. The thermostat has been pre-set at the factory at or below 51.7 °C (125° F). Hydrogen gas can be produced in a hot water system served by this heater that has not been used for a long period of time (generally 2 weeks or more). Hydrogen gas is extremely flammable. To reduce the risk of injury under these conditions, it is recommended that the hot water faucet be opened for several minutes before using any electrical appliance connected to the hot water system. If hydrogen gas is present, there will probably be an unusual sound such as air escaping through the pipe as the water begins to flow. There should be no smoking or open flame near the faucet at this time. Any water heater should be installed in such a manner that if it should leak, the resulting flow of water will not cause damage to the area in which it is installed. National Plumbing codes require a drain pan for any water heater installation. Failure to install one is the sole responsibility of owner and/or installer. Reference UPC 2000 (Uniform Plumbing Code) Section 510- Protection from Damage or IPC 2000 (International Plumbing Code) Section 504- Safety Devices. CAUTION CAUTION CAUTION Installation instructions MODEL GL 8Ti The GL 8Ti water heater can be installed under the sink. Wall mounting (only for vertical installation) Floor Mounting Wiring and Grounding instructions Fasten the supplied mounting bracket to the wall. Use screws that are suitable for the wall material and the weight of the heater. Hang the water heater on the bracket. Tug down wards on the heater to ensure that both "fingers" of the bracket are seated in the mounting slots. Confirm water piping orientation before wall mounting. Wall bracket will not support the GL8Ti when the plumbing connections are installed horizontally. Heater can sit on floor. Confirm water piping orientation before locating on floor location. As per the National Electric Code the GL8Ti needs to be wired with 12 GA. wire to a minimum 20 amp/ maximum 20 amp branch circuit. To wire the GL8Ti model: 1. Pry off the round cover plate (V Fig. 3/1) from its right hand edge (W Fig. 3/1) with a small flat-head screwdriver. 2. Remove the Phillips screw revealed beneath the round cover plate. 3. The cover (C Fig. 3/1) can now be removed by pulling out its left-hand edge. When reassembling, work in the opposite way being careful to insert the tongue of the cover into the slot. 4. Insert 12 AWG through conduit at rear of heater. Secure internal wire connector (A Fig. 3/2) and connect wiring to right side of thermostat control and ground. Positive (+) to lower terminal marked "L" (E Fig. 3/2) and Neutral to upper terminal marked "N" (H Fig. 3/2). Unit must be grounded at groundscrew (T Fig. 3/2) on element base. 5. When the GL8Ti is not within sight of the electrical circuit breakers, a circuit breaker lockout or additional local means of disconnection for all non grounded conductors must be provided that is within sight of the appliance. [REF NEC 422.31] Connect the cold water inlet pipe to the inlet nipple (marked with a blue ring) and the hot water outlet pipe to the outlet nipple (marked with a red ring). The model GL8Ti can be piped horizontally from the side or vertically from the top. If you wish to install the unit horizontally, with the piping connections on the right side, you will have to be certain the tap between the two water tappings is plugged, the supplied Temperature and Pressure Relief Valve will need to be installed on top. See location of T&P relief valve in Fig. 2/2. Pipe connections 4 If you wish to install the unit vertically, with the piping connections on top, you will have to be certain the tap on the side is plugged, the supplied Temperature and Pressure Relief Valve will need to be installed on top. See location of T&P relief valve in Fig. 2/3. FIG. 3/1 C V W F FIG. 3/2 Z F G H E X Y T A MODEL GL 2.5Ti - GL 4Ti The GL 2.5Ti and GL 4Ti water heaters can be installed under the sink. Wall mounting Fasten the supplied mounting bracket to the wall. Use screws that are suitable for the wall material and the weight of the heater. Hang the water heater on the bracket. Tug down wards on the heater to ensure that both "fingers" of the bracket are seated in the mounting slots. 5 Floor Mounting Pipe connections CAUTION Heater can sit on floor. Connect the cold water inlet pipe to the inlet nipple (marked with a blue ring) and the hot water outlet pipe to the outlet nipple (marked with a red ring). To reduce the risk of excessive pressures and temperatures in this water heater, install the supplied 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 Shut-off Devices for Hot Water Supply Systems, ANSI Z21.22. The supplied temperature and pressure relief valve is marked with a maximum set pressure (150 psi) that does not exceed the marked maximum working pressure of the water heater. Install the valve in the opening provided and marked for this purpose in the water heater, and orient it or provide tubing so that any discharge from the valve will exit within 6 inches above, or at any distance below, the structural floor, and cannot contact any live electrical part. The discharge opening must not be blocked or reduced in size under any circumstances. National Plumbing codes require a drain pan for any water heater installation. Failure to install one is the sole responsibility of owner and/or installer. Reference UPC 2000 (Uniform Plumbing Code) Section 510- Protection from Damage or IPC 2000 (International Plumbing Code) Section 504- Safety Devices. Periodic discharge of the temperature and pressure relief valve or failure of the element gasket may be due to thermal expansion in a closed water supply system. The water utility supply meter may contain a check valve, backflow preventer or water pressure reducing valve which will create a closed water system. During the heating cycle of the water heater, the water expands causing pressure inside the water heater to increase. The temperature and pressure relief valve may discharge hot water under these conditions which results in a loss of energy and a build-up of lime on the relief valve seat. To prevent this from happening, there are two recommendations: 1. Install a diaphragm-type expansion tank that is suitable for potable water on the cold water supply line. The expansion tank must have a minimum capacity of 1.5 U.S. gallons for every 50 gallons of stored water. 2. Install a 125 PSI pressure relief valve in the cold water supply line. Make sure the discharge of this valve is directed to an open drain and protected from freezing. Contact the local water supplier or plumbing inspector for information on how to control this situation. Do not plug the temperature and pressure relief valve. Closed system thermal expansion (for all models) Instructions for use Starting and testing Before connecting the power, fill the tank and system with water and check for leaks. To be certain that all air is out of the water system, open the hot water faucets on your fixtures until constant water flows from them, otherwise damage to the element may occur. To start the heating cycle: A) first make sure tank is full. Otherwise the heating element may be damaged. B) the red light will come on and remain on until that temperature has been reached, at which point the light will go off, but will automatically come back on when the water temperature drops below the setting chosen. After installation check the water temperature. If adjustment is necessary, remove front cover to adjust thermostat (D Fig. 4 -clockwise to increase the temperature and counter clockwise to decrease it). To reach the thermostat: 1. Pry off the round cover plate (V Fig. 3/1) from its right hand edge (W Fig. 3/1) with a small flat-head screwdriver. 2. Remove the Phillips screw revealed beneath the round cover plate. Temperature Setting 6 3. The cover (C Fig. 3/1) can now be removed by pulling out its left-hand edge. When reassembling, work in the opposite way being careful to insert the tongue of the cover into the slot. FIG. 4 B D Maintenance instructions Note: Do not attempt to repair this water heater yourself. Call a service person for assistance. Always turn off the power supply to the heater prior to servicing or draining the heater. Periodic maintenance Note: For most of these operations, the water will have to be drained from the heater. For all of these operations the power supply needs to be shut off and the front cover removed. 1. Pry off the round cover plate (V Fig. 3/1) from its right ha ...