Waiwela WM-2.5 Installation And Operating Instruction Manual
Electric mini tank water heaters
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Summary of Contents for Waiwela WM-2.5
- Page 1 Electric Mini Tank Water Heaters WM-2.5 & WM-4.0 Installation and Operating Instruction Manual...
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Page 2: Table Of Contents
Table of Contents Important Safety Instructions Technical Data General Information Technical Description Installation Instructions 6-10 Plumbing Connections Temperature & Pressure Relief Valve Filling The Water Heater Electrical Connections Instructions For Use Maintenance Instructions 12-14 Trouble Shooting Schematic Disassembly & Parts List Warranty 17-19 Page 1... -
Page 3: Important Safety Instructions
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: READ ALL INSTRUCTIONS BEFORE USING THIS WATER HEATER. This water heater must be grounded. Connect only to properly grounded outlet. See “GROUNDING INSTRUCTIONS”... -
Page 4: Technical Data
Technical Data MODEL WM-2.5 WM-4.0 Capacity gallons Voltage 110-120 110-120 Power at 120 Vac Watts 1440 1440 Max. Water Pressure Weight (empty) lbs. Amperage Amps Temperature and Water outlet Pressure Relief Valve Water inlet Assembly Figure water outlet water inlet... -
Page 5: Wiring Diagram
Dimensions Model WM-2.5 WM-4.0 A (inch) 14 1/2” 19 1/4” B (inch) 11 3/4” 11 3/4” C (inch) 10 3/8” 10 3/8” Schematic Construction Heating element Switch Wiring Diagram Thermostat Indicate Light Heating Element Power Plug Wire Support Switch Switch... -
Page 6: General Information
GENERAL INFORMATION The WaiWela Mini Tank water heaters can be used in most under the counter, point of use applications. Models WM-2.5 and WM-4.0 are designed to supply hot water for all hand wash and kitchen sinks in a residential, commercial or industrial environment. -
Page 7: Technical Description
TECHNICAL DESCRIPTION There are two WaiWela Mini tank models, a 2.5 gallon model and a 4.0 gallon model. The pressure vessel (water tank) is welded, glass lined steel and is equipped with an anode rod. The water heater is equipped with a thermostat and a high limit temperature switch. -
Page 8: Plumbing Connections
PLUMBING CONNECTIONS 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). IMPORTANT: If Water pipes are copper or bronze, use dielectric connections to prevent corrosion. - Page 9 T/P Valve Discharge pipe: Must NOT be smaller in diameter than the outlet diameter of the valve, or have any reducing couplings. Must NOT be plugged or blocked. Must be made of suitable material for hot water. Must not be over 15’ in length. Must not have more than two elbows.
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Page 10: Filling The Water Heater
FILLING THE WATER HEATER CAUTION!: Before plugging the water heater electric cord into an outlet, be sure that the system is completely charged with water and ALL AIR IS REMOVED. Before connecting the power, fill the tank and system with water and check for leaks. -
Page 11: Electrical Connections
110-120 V/AC receptacle. Adhere to all pertinent State and local codes. Install the correct size circuit breaker into the master panel. The WaiWela WM water heater was manufactured and wired in accordance with UL require- ments. -
Page 12: Instructions For Use
INSTRUCTIONS FOR USE CONGRATULATIONS! You are now ready to use your water heater. Run the hot water at a nearby sink and evaluate the hot water temperature. Make any temperature adjustment using the section below: SETTING THE THERMOSTAT: The water heater is equipped with an adjustable thermostat that once set will automatically control water temperature. -
Page 13: Maintenance Instructions
MAINTENANCE INSTRUCTIONS Do not attempt to repair this water heater yourself. Call a service person (plumber or electrician) for service assistance. Always unplug the power supply cord when the water is turned off or when servicing or draining the water heater. Before calling for service, first confirm that the water heater is properly filled and that 110VAC power has not been interrupted. - Page 14 DESCALING THE HEATING ELEMENT: Scale deposits can affect the heating capability of the element. Heavy scale can even cause the element to burn out. The element can be descaled chemically or manually. Remove the heating element (see above). To descale chemically, soak the heating element in white vinegar or other descaling solution and then rinse well with fresh water.
- Page 15 RESETTING THE HIGH LIMIT SWITCH: For various reasons the high limit safety shut off switch will occasionally shut the water heater down. This shut down will occur when water tem- peratures exceed 190°F. Power is automatically turned off to the heating element.
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Page 16: Trouble Shooting
TROUBLE SHOOTING PROBLEM: Water does not get hot Make sure the power supply is on and working. If light does not come on, check that the reset button is pushed in; follow steps from previous section. If the indicator light is illuminated, but water temperature does not get hot at the sink, test for a plumbing crossover as follows;... -
Page 17: Schematic Disassembly & Parts List
Schematic Disassembly WM-2.5 & WM-4.0 32 31 Parts List WM-2.5 & WM-4.0 Name of Part Qty. Name of Part Qty. Tank Component Back Cover Thermostat Power Switch Temp. Adjust Panel Power Switch Box Inside Wiring Assembly Power Cord Cross Screws... -
Page 18: Warranty
Warranty Period When a failure of the INNER TANK of a WaiWela Mini Tank water heater, in- stalled in a single family, residential application and exposed to normal usage (not including recirculating applications), occurs within six (6) years from the date of the... - Page 19 IMPORTANT: OWNER SHOULD RETAIN THIS DOCUMENT. READ NOTE NOTE: Most tank water heaters eventually leak. Your WaiWela quality 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.
- Page 20 Returned Goods Authorization # issued by ETS and shipped prepaid to ETS at the address below. Efficient Technology Sales, LLC 5350 Joliet Street Denver, CO 80239 800 605-6542 303 339-4900 FAX 303 339-4909 www.waiwela.com Page 19...