POWER DIRECT VENT WATER HEATER INSTALLATION AND OPERATING INSTRUCTIONS Read and understand these instructions thoroughly before starting WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information, consult a qualified installer, service agency, or the gas utility.
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TABLE OF CONTENTS I) INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 User Responsibilities 4 II) SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 For Installations in Canada: 5 For Installations in the United States: 5 Safety Warning (Flammable Vapours) 5 Safety Warning (Scalding) 5 Relief Valve Requirements (T&P) 6 III) INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Your safety and the safety of others is very important. We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety messages. This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others. All safety messages will follow the safety alert symbol and either the word “DANGER” or “WARNING”. DANGER You can be killed or seriously injured if you don’t immediately follow instructions.
Service to the Power Direct Vent System should only be performed by a qualified service technician. Safety Warning (Flammable Vapours) WARNING The manufacturer and seller of this water heater will not assume any liability for any property damage, personal injury or death resulting from improper sizing, installation or failure to comply with these instructions. The warranty on this water heater is in effect only when the water heater is installed and operated in accordance with these instructions.
Relief Valve Requirements (T&P) IMPORTANT: This water heater must be installed strictly in accordance with the instructions enclosed, and local electrical, fuel and building codes. It is possible that connections to the water heater, or the water heater itself, may develop leaks.
• The water heater should be located in an area not subject to freezing temperatures. Water heaters located in unconditioned spaces (i.e., attics, basements, etc.) may require insulation of the water piping and drain piping to protect against freezing. The drain and controls must be easily accessible for operation and service. Maintain proper clearances as specified on the data plate. DANGER Explosion Hazard • Use a new CSA approved gas supply line. • Install a gas supply shut-off valve.
1. Install a readily accessible manual shut-off valve in the gas supply line as recommended by the local utility. The owner/operator must be shown the location of this valve and be given instructions on how to use it to shut off the gas to the heater. 2. Install a drip leg (if not already incorporated as part of the water heater) as shown. The drip leg must be no less than 76mm (3 in.) long for the accumulation of dirt, foreign material, and water droplets. 3.
Vent Pipe Connection to Blower A rubber coupling and gear clamps are supplied (Vent Kit) with the water heater to connect the exhaust vent system to the blower. Important: These connections must be properly sealed to prevent the leakage of the products of combustion into the living area. Vent Pipe Installation The following guidelines should be followed when installing the air intake and exhaust vent system: • Venting should be as direct as possible with a minimum number of pipe fittings.
Vent Pipe Runs WARNING This unit includes an air intake terminal and an exhaust vent terminal. 1. The exhaust vent system must not, under any circumstances, be run downhill then run uphill thus forming a valley. It may leave a space to accumulate condensation and block vent pipe. 2. Horizontal runs require a minimum 3mm (1/8 in.) rise per 1.5m (5 ft) and a support every 1.2m (4 ft.). Ensure there is enough height between heater and termination to raise vent pipe runs the required distance. 3.
Vent Terminal Installations Important: The vent system must terminate so that proper clearances are maintained as cited in local codes or the latest edition of “Natural Gas and Propane Installation Code” CAN/CSA-B149.1 (Canada), or “National Fuel Gas Code” ANSI Z223.1 (NFPA 54) (U.S.A.). The following requirements are illustrated in Figure 6: 1. (“A”) Minimum 2.1m (7 ft.) above a paved sidewalk or paved driveway that is located on public property. 2. (“B”) Minimum 900mm (3 ft.
Side Wall Vent Terminal Installation C L SIDE WALL 203mm (8 in.) MIN, 610mm (24 in.) MAX. X. mm , 203 ) MIN. in.) MA . n 4 i (2 (8 mm 610 C L “A” & “B”: 457mm (18 IN.) MIN. ABOVE ROOF OR SNOW ACCUMULATION LEVEL. 100mm (4 in.) MAX C L INTA K VEN E TER T MINA L 25m m (1 in .) EXH AU VEN ST TER T MINA L C L EXHAUST VENT TERMINAL 25m m (1 in .
Water Supply Piping Installation Piping, fittings, and valves should be installed according to the installation drawing (Figure 10). A pressure-reducing valve and/or an expansion tank may be required for installations where the water pressure is high. The pressurereducing valve should be located on the supply to the entire house in order to maintain equal hot and cold water pressure. Important: Heat cannot be applied to the water fittings on the heater as they may contain nonmetallic parts.
5.6 litres (1.5 US gallons) for every 190 litres (50 US gallons) of stored water and be rated at the working pressure of the water heater. Contact the local water supplier or plumbing inspector for information on other methods to control this situation. Important: Do not plug or remove the temperature and pressure relief valve. • • • Must terminate a maximum of 300mm (12 in.) (Canada) or 150mm (6 in.) (U.S.A.) above the floor. Must be capable of withstanding 121°C (250°F) without distortion.
Before plugging in the water heater, always make sure: • The voltage and frequency correspond to that specified on the water heater wiring diagram. • The electrical outlet has the proper overload fuse or breaker protection. • Fill the tank with water and check all connections for leaks. Open the nearest hot water faucet and let it run for 3 minutes to purge the water lines of air and sediment and to ensure complete filling of the tank. The electrical power may then be turned on.
WARNING When the unit is plugged in, 120VAC is present at the electric connections of the gas control/thermostat. IGNITER E5 E4 E3 E2 PRESSURE SWITCH HIGH LIMIT SWITCH FLAME SENSOR E1 BLOWER GAS VALVE EXTERNAL MONITOR LIGHT Figure 15 Wiring Diagram - Control (Robertshaw 2000N WDER Control) L1 N INLET PRESSURE PORT GAS CONTROL SWITCH GND SAFETY COVER GAS VALVE CONNECTOR QUICK CONNECTORS MAIN AND IGNITER 60°C (140°F) MAX.
WARNING When the unit is plugged in, 120VAC is present at the electric connections of the gas control/thermostat. 3/4” NPT. WRAP WITH TEFLON TAPE (2 WRAPS MIN.
Installation Checklist Check Here Water Heater Location 1. Centrally located with the water piping system. Located as close to gas piping and vent pipe system as possible. 2. Located indoors and in a vertical position. Protected from freezing temperatures. 3. Proper clearances from combustible surfaces maintained and not installed directly on a carpeted floor. 4. Provisions made to protect the area from water damage. Drain pan installed and piped to an adequate drain. 5.
IV) LIGHTING & OPERATING INSTRUCTIONS Lighting Instructions (Robertshaw) FOR YOUR SAFETY READ BEFORE OPERATING POUR VOTRE SÉCURITÉ, LISEZ AVANT DE METTRE EN MARCHE WARNING: If you do not follow these instructions ATTENTION: Quiconque ne respecte pas à la lettre les instructions dans la présente notice risque de déclencher un incendie ou une explosion entraînant des dommages, des blessures ou la mort. exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A.
First Lighting FLASH SEQUENCE CAUTION: Read before proceeding. If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, personal injury or loss of life. Robertshaw 2000N WDER Operation A green LED on the front of the control is used to flash a system status code indicating the operational state of the control (see Table 2). When initially energized, with the temperature dial set at vacation, the control will: 1. Perform a self-diagnostic check.
In households with children, disabled or the elderly, select a lower temperature setting. Valves for reducing point–of–use temperature by mixing hot and cold water are available. Consult a licensed plumber or the local plumbing authority. Should overheating occur or the gas supply fail to shut off, turn off the manual gas valve to the appliance.
Lighting Instructions (White-Rodgers) – 22 –
CAUTION: Read before proceeding. If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, personal injury or loss of life. Gas Control/Thermostat Alternatively, this heater may be equipped with the WhiteRodgers Intelli-VentTM gas control/thermostat and a hot-surface igniter. This control is a combination gas valve, thermostat and ignition controller for use on this power vented water heater.
WARNING Scald burns occur in under one second with 71°C (160°F) water, which this thermostat will deliver if the temperature is set at “VERY HOT”. Lower settings of the temperature will reduce the risk of scald and will reduce your fuel bill. Note: All the temperature indicators will be off during normal operation. If any time you see the indicators on, there may be a system error and you should consult the “Troubleshooting Guide” section of this document, or contact a trained service professional.
SYMPTOM Error 4 Error 5 Error 6 Error 7 CORRECTIVE ACTION POSSIBLE CAUSE(S) The pressure switch remained 1. The pressure switch wiring is incorrect. open longer than 5 seconds 2. The pressure switch tubing is not connected correctly. after the combustion blower 3. Obstructions or restrictions in the water heater air intake or exhaust was energized. flue. 4. Check the high temperature limit switch. The self diagnostic test has 1. Check that all wiring is correct and secure.
Burner Flames V) OPERATION WARNING Keep the area around the heater clear and unobstructed. Water Heater Operation Figure 19 shows the water heater's sequence of operation when a call for heat is initiated. The ignition control module will attempt to light the burner three times. If the ignition control does not detect ignition it will enter lockout mode. The Robertshaw control will display a System Status Code (see Table 2), the White-Rodgers control will flash the corresponding error code.
High efficient energy saver water heaters will produce larger amounts of condensation on initial start-up or when a large amount of hot water is being used. Do not confuse this with a “tank leak”. Once the water reaches a temperature of 49°C (120°F) and the tank warms up (usually 1-2 hours), the condensation will stop.
Temperature and Pressure Relief Valve VI) MAINTENANCE Draining and Flushing It is recommended that the tank be drained and flushed every 6 months to remove sediment that may build up during operation. The water heater should be drained if being shut down during freezing temperatures. To drain the tank, perform the following steps: 1. Turn off the gas to the water heater at the manual gas shut-off valve. 2. Turn off the electrical supply to the water heater. 3. Close the cold water inlet valve. 4.
VII) COMBO HEATING WARNING Keep the area around the heater clear and unobstructed. This section serves as a guide for the installation and use of “Combo” heating systems utilizing a domestic water heater that has been specifically approved for such use. It is written for those knowledgeable in the required trades and professionals involved in the design and installation of Combo Heating Systems.
Installation The heating mode may be one of the following options: A. A fan coil/air handler (Figure 22). B. A hydronic baseboard (finned tube) loop/In floor heating (Figure 23). The following is a list of requirements for the installation of the heating loop to the water heater. 1. Install shut-off valves and unions so that the water heater can be isolated from the heating module should servicing of the water heater become necessary. 2.
VIII) TROUBLESHOOTING GUIDE Robertshaw 2000N WDER and White-Rodgers Intelli-VentTM SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION BLOWER WILL NOT START. 1. No Power to unit. 2. Thermostat setting too low. 3. Defective air pressure switch (must be open at start-up before blower is energized). 4. Defective blower. 5. Disconnected or loose wire. 6. Control locked-out. 1. Plug in power cord, check fuses/supply voltage. 2. Increase thermostat temperature setting. 3. Replace air pressure switch. 4.
IX) PARTS REFERENCE ILLUSTRATION 2 1 16 17 18 27 21 27 3 in. to 2 in. reducer 28 blower-air duct adapter 15 3 22 4 5 19 26 25 23 Used with White-Rodgers control 6 17 18 19 20 21 7 8 9 10 26 12 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.
LIMITED WARRANTY See Rating Label Serial Number prefix for Warranty Code. Warranty Code: P R S T U V W Y Warranty Years: 3 5 6 7 8 9 10 12 RESIDENTIAL STORAGE TANK TYPE WATER HEATER FOR INSTALLATION IN A SINGLE FAMILY DWELLING A. WHO IS COVERED.
d. The water heater or any of its component parts are damaged or fails from operation with an empty or partially empty tank (such as, but not limited to elements burned out in a dry tank); or e. The water heater or any part has been under water; or f. The water heater is exposed to highly corrosive atmospheric conditions. No warranty extends, for example, and without limitation of the foregoing, to Units exposed to: salts, chemicals, exhausts, pollutants or contaminants; or g.
