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Owner's Guide and Installation Manual
WARNING: If the information in this manual is not followed exactly, a fire or
explosion may result causing property damage, personal injury or death.
- Do not store or use gasoline or other flammable vapors and liquids in the
vicinity of this or any other appliance.
- WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone. Follow the
gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
- Installation and service must be performed by a qualified installer, service
agency or the gas supplier.
Low NOx
Approved by SCAQMD
Printed in the U.S.A. 0604
25,000 – 194,000 BTU Tankless Water Heater
Thank you for purchasing this Gas Water Heater. Before using, please:
Read this manual completely for correct installation and operation
instructions.
Completely fill out the warranty registration card (included separately)
and mail the detachable portion.
Keep this manual (and the remainder of the warranty registration card)
where it can be found whenever necessary.
PART NO. 184959-089
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Table of Contents
Related Manuals for State Water Heaters Gas Water Heater
Summary of Contents for State Water Heaters Gas Water Heater
- Page 1 • If you cannot reach your gas supplier, call the fire department. - Installation and service must be performed by a qualified installer, service agency or the gas supplier. Thank you for purchasing this Gas Water Heater. Before using, please: Read this manual completely for correct installation and operation instructions.
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Page 2: Table Of Contents
Contents Contents ......................2 Owner's Guide Important Safety Information ............... 3 General Parts Main Unit ....................7 (Optional) Remote Controller ..............8 Initial Operation .................... 9 How to Use Setting and Using the Water Heater ............10 Preventing Damage from Freezing ............11 Regular Maintenance ................... -
Page 3: Important Safety Information
Important Safety Information-1 To prevent damage to property and injury to the user, the icons shown below will be used to warn of varying levels of danger. Every indication is critical to the safe operation of the water heater and must be understood and observed. - Page 4 Important Safety Information (Continued) Do not turn off the water heater or [When installing indoors] change the water temperature while Check the air supply someone is bathing. vent for dust or obstructions. Do not place combustibles such as laundry, newspapers, oils etc. near the heater or the exhaust vent terminal.
- Page 5 Caution Be sure to electrically ground the Do not touch the exhaust vent pipe unit. during or immediately after operation of the water heater. Do not touch the power cord with wet hands. Keep power cord free of dust. Do not use hair spray or spray detergent in the vicinity of the heater.
- Page 6 Important Safety Information Remark Do not drink water that has been inside the This unit is only approved for installation unit for an extended period of time. Do not up to 4500 ft. above sea level. drink the first use of hot water from the unit in the morning.
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Page 7: General Parts
General Parts Main Unit Indoor/Outdoor Wall Mounted, Power Vented Model Flue Collar Front Cover Air Inlet Water Drain Valve (with Water Filter) (Inside Water Inlet) p.14) Pressure Relief Valve Water Supply Valve Gas Supply Valve * The above illustration shows an example of installation. The exact installation configuration may be slightly different. -
Page 8: (Optional) Remote Controller (9004223
(Optional) Remote Controller (9004223) Display Setting Buttons For setting the hot water temperature, the flow meter alarm, and other settings. Power On/Off Button For turning the heater on and off. Flow Meter Alarm Set Button For setting the flow meter alarm. * Before use, remove the protective sheet from the remote controller surface. -
Page 9: Initial Operation
Initial Operation Before the first use of your water heater, make the following preparations. 1 through 4 Follow steps Open the water supply valve. OPEN CLOSED Open a hot water fixture to confirm that water is available, and then close the fixture again. -
Page 10: How To Use
How to Use (For N-063S) Setting and Using the Water Heater The factory temperature setting is 120°F (fixed). Mix with cold water with a mixing valve or at the fixture for desired temperature. Check that electrical power is connected. Turn on hot water. Mix for desired temperature. -
Page 11: Preventing Damage From Freezing
Preventing Damage from Freezing Remarks * Damage can occur from frozen water within the device and pipes even in warm environments. Be sure to read below for appropriate measures. * Repairs for damage caused by freezing are not covered by the warranty. Freezing is prevented within the device automatically by the freeze-prevention heater Freezing cannot be prevented when the power plug is unplugged. -
Page 12: Turning The Unit Back On
Preventing Damage from Freezing If the water heater will not be used for a long period of time, Drain the water. Drain the water as follows: Caution To avoid burns, wait until the equipment cools down before draining the water. The appliance will remain hot after it is turned off. -
Page 13: Regular Maintenance
Regular Maintenance-1 Periodic Inspection Caution To avoid burns, wait until the equipment cools down before draining the water. The appliance will remain hot after it is turned off. High Temperature For dust and soot in Check For laundry, newspaper, timber, Check the exhaust vent or oil, spray cans and other... -
Page 14: Periodic Maintenance
Regular Maintenance-2 Periodic Maintenance Water Drain Valve (with Water Filter) If the water drain valve (with water filter) is covered with debris, the hot water may not run smoothly, or the unit may put out cold water. Check and clean the filter as explained below. * To avoid burns, wait until the equipment cools down before draining the water. -
Page 15: Troubleshooting
Troubleshooting-1 Initial Operation • Is water running? Unit does not attempt to ignite when water is running. • Check for reversed plumbing or crossed pipes. • Check the water drain valve filter. ( p.14 ) Unit attempts to ignite but fails •... -
Page 16: Amount Of Hot Water
Troubleshooting-2 Temperature • The unit will not heat the water if the flow rate is less than The water is cold when only a single fixture is open. 0.75 gallons per minute. Open the fixture more or open other fixtures so that a greater flow passes through the unit, and the unit should begin heating again. -
Page 17: Remote Controller
Remote Controller • Has there been a power failure? The light on the power button does not come on. • Is the power connected properly? The water temperature changes • The temperature setting and the flow meter alarm setting after a power failure or when the may both need to be reset after a power outage. -
Page 18: Error Code Cause
Troubleshooting-3 If there is a problem with the unit, a lamp will flash on the frout of the unit. If this occurs, take appropriate measures as listed below. Lamp Cause Action Check whether the gas valve is open. Close Unit abnormality the hot water fixture, and then open it again. -
Page 19: Follow-Up Service
Follow-up Service Requesting Service First follow the instructions in the troubleshooting section (p.15 to p.18). If the error is not corrected, contact our sales agent. We will need to know: The Model ....(check the rating plate) *See p.4 for the location of the label Date of purchase .. -
Page 20: Specifications
• Specifications may be changed without prior notice. Specifications • The capacity may differ slightly, depending on the water pressure, water supply, piping conditions, and water temperature. Specifications Item Specification Type Installation Indoor/ Outdoor, Wall Hanging Air Supply/Exhaust Power Vented Ignition Direct Ignition Operating Pressure... -
Page 21: External Outfitting
External outfitting... - Page 22 External outfitting Part Nos. Part Names Order Nos. Qty/unit Front set-AS 9004135 Front Packing BVU 9004136 Caution Label 1 EAU 9004137 Caution Label 2 EAU 9004138 Connection diagram label 9004139 Case EHU 9004140 Grommet CXP 9004141 Case top cover 2 EDL 9004142 Case top cover EHU 9004143...
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Page 23: Combustion Unit And Gas Route
Combustion unit and gas route... - Page 24 Combustion unit and gas route Part Nos. Part Names Order Nos. Qty/unit Combustion tube set EHU 9004152 Suction air joint packing DTJ 9004153 Ignition plug CZL & packing DLK SET-V 9004154 Flame rod & packing DLK SET-V 9004155 Plug packing (for B) DLK 9004156 Plug mounting plate (for B) DLK 9004157...
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Page 25: Hot-Water Feed Route
Hot-water feed route (Thermal fuse rounding procedure) (Front side view) (Right side view) (Rear side view) (Left side view) Thermal fuse fastener 402 Thermal fuse fastener Thermal fuse fastener Thermal fuse fastener Freeze preventive heater Heater fastener Thermal fuse... - Page 26 Hot-water feed route Part Nos. Part Names Order Nos. Qty/unit Heat exchanger & Exhaust box EHV SET-AS 9004180 Thermal fuse fastener CZL 9004181 Thermal fuse fastener DTJ 9004182 Thermal fuse Q DTJ SET-V 9004183 Remaining flame safety device 96 EHU 9004184 Freeze preventive heater CRP SET-V 9004185...
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Page 27: Electronic Control Unit
Electronic control unit... -
Page 28: Electronic Control Unit, Remote Controller And Attached Set
Electronic control unit Part Nos. Part Names Order Nos. Qty/unit Relay case EHU SET-AS 9004210 Mounting plate for relay case EHU 9004211 Relay case cover EHU 9004212 Harness EHV 9004213 Lamp cable conduit CRP 9004214 Current leakage safety device DTJ 9004215 Mounting plate for terminal block DZT 9004216... -
Page 29: Installation Manual
Installation Manual GAS WATER HEATER WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or death. Potential dangers from accidents during installation and use are divided into the following three categories. -
Page 30: Included Accessories
The following accessories are included with the unit. Included Accessories Check for any missing items before starting installation. Part Shape Part Shape Q’ty Q’ty Installation Manual Tapping Screw (this document) The accessories listed below are not Optional Accessories included with the units, but may be necessary for installation. -
Page 31: Before Installation
Before Installation Caution Check the Gas • Check that the rating plate indicates the correct type of gas. Check that the gas supply line is sized for 194,000 Btuh for this unit. Check the Power • The power supply required is 120V AC, at 60Hz. - Page 32 • Install the exhaust vent so that there are no obstacles around the termination and so that exhaust can't accumulate. Do not enclose the termination with corrugated metal or other materials. • Do not install the water heater where the exhaust will blow on outer walls or material not resistant to heat.
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Page 33: Installation Clearances
Installation Clearances Caution Before installing, check for the following: Install in accordance with relevant building and mechanical codes, as well as any local, state or national regulations. Item Check Illustration • Maintain the following clearance from both combustible and non-combustible materials. -
Page 34: Installation
Installation Securing to the wall • The weight of the device will be applied to the wall. If the strength of the wall is not suffi- cient, reinforcement must be done to prevent the transfer of vibration. • Do not drop or apply unnecessary force to the device when installing. Internal parts may be damaged and may become highly dangerous. -
Page 35: Vent Pipe Installation (Indoor Installation Only)
Vent Pipe Installation (Indoor Installation Only) • Make sure vent pipe is gas tight and will not Vent Piping leak. Use silicon sealant wherever necessary. • Use only listed category III vent materials. • Do not place any dangerous objects at the end •... - Page 36 Vertical Vent Termination Rain • Terminate at least 6' from the combustion air intake of any appliance, and 3' from any Roof other building opening, gas Flashing utility meter, service regulator etc. • Enclose exterior vent systems below the roof line to limit condensation and protect Firestop/ against mechanical failure.
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Page 37: Gas Piping
Supply combustion air to the units as per the National Fuel Gas Code, ANSI Z223.1. Combustion Air • Provide two permanent openings to allow circulation of combustion air. 10" • Make each opening 194 square inches if they provide indoor air, and 100 square inches for 20"... - Page 38 Measuring Gas Pressure In order to check the gas supply pressure to the unit, a tap is provided on the gas inlet. Remove the hex head philips screw from the tap, and connect a manometer using a silicon tube. In order to check the gas manifold pressure, a pair of taps are provided on the gas valve inside the unit.
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Page 39: Water Piping
Water Piping Ask a qualified plumber to perform the installation of the plumbing. Observe all applicable codes. This appliance suitable for potable water and space heating applications. Do not use this appliance if any part has been underwater. Immediately call a qualified service technician to inspect the appliance and replace any part of the control system and gas control which has been under water. -
Page 40: Plumbing Applications
Plumbing Applications Recirculation System Aquastat Wiring Hot Water Return Cold Water Supply Use Honeywell Aquastat (Model L6006A or L6006C) Fixtures Check Valve Pump Expansion Tank NORITZ (Optional) N-069M N-063S AC120 Check Valve Pump Aquastat (IN The case of Pump Pressure coupling to use GRUND Shutoff Valve FOS UP15-42) -
Page 41: Electrical Wiring
Consult a qualified electrician Electrical Wiring for the electrical work. Do not connect electrical power to the unit until all electrical wiring has been completed. This appliance must be electrically grounded in accordance with local codes, or in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70. - Page 42 (Optional) Remote Controller • Applicable Model Remote controller 9004223 Install the remote controller according to the instructions in the Installation Guide (p. 58). • The unit can be programmed so that it will default to one of three temperatures if the remote controller is removed (140, 130, 120°F).
- Page 43 Connecting Remote Controller Cord to Unit • Keep the remote controller cord away from the freeze prevention heaters in the unit. • Tie the redundant cord outside the water heater. Do not put the extra length inside the equipment. • The remote controller cord can be extended up to 300' with 18AWG wire. •...
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Page 44: Maintenance
Periodically check the following to ensure proper Maintenance operation of the water heater. • The venting system must be examined periodically by a qualified service technician to check for any leaks or corrosion. • The burner flame must be checked periodically for a proper blue color and consistency. •... -
Page 45: Lighting Instructions
Lighting Instructions This water heater does not have a pilot. It is equipped with an ignition device that automatically lights the burner. Do not try to light the burner by hand. 1. Read the safety information in the installation manual or on the front of the water heater. 2. -
Page 46: Dimensions
Dimensions (VIEW FROM TOP) 10.8" 10.5" 7.7" 7" 1.5" 13.3" GAS INLET (3/4") HOT WATER OUTLET(3/4") WIRING THROUGHWAYS COLD WATER INLET(3/4") 4.7" 13.8" 0.4" 9.5" 13.1" 3" FLUE COLLAR 4" UPPER WALL MOUNT BRACKETS AIR INLET 4.7" 2.4" BOTTOM OF CASE BOTTOM OF CASE AIR INLET 0.4"... -
Page 48: Remote Controller Installation Guide
For Installers: Read this installation guide Optional Remote Controller carefully before carrying out installation. Installation Guide Note Do not connect power to the water heater before the remote controller has been properly installed. Included Parts List Connecting Wire Wall Packing Quantity Part Name Remote Controller... - Page 49 Installation 1. Apply Wall Packing to the rear side of the 3. Remove the cover of the remote control, remote controller. mark the location of the screw holes, and 2. Connect the remote controller wires to the drill holes for the wall anchors. 4.
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