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ANS Z21.10.3
●
CSA 4.3
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
WARNING: If the information in these instructions 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.
Direct Vent Tankless Water Heater
Operation and Installation Manual
FOR INDOOR APPLICATIONS ONLY
Models 305 and 505 are Energy Star Qualified
Table of Contents .................... 2
Operating Instructions .............. 5
Maintenance ............................ 8
Error Codes ............................. 9
Installation Instructions ............ 13
Warranty .................................. 38
Models:
305
505
705
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Table of Contents
Related Manuals for State Water Heaters Tankless On-Demand 705 Series 200
Summary of Contents for State Water Heaters Tankless On-Demand 705 Series 200
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Page 1: Table Of Contents
INSTALLER: Leave this manual with the appliance. CONSUMER: Retain this manual for future reference. WARNING: If the information in these instructions 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. -
Page 2: Table Of Contents
Specifications ... 3 Consumer Safety Information Safety Definitions ... 4 Safety Behaviors and Practices ... 4 Safety Features ... 4 Description of Operation ... 5 Operating Instructions Features Available on Temperature Controllers ... 5 Setting the Temperature ... 6 Temperature Options Without a Temperature Controller ... -
Page 3: Specifications
Model Minimum Gas Consumption Btu/h Maximum Gas Consumption Btu/h Hot water capacity (Min - Max) * Hot water capacity (45°F rise) Default Temperature Setting (no controller) Temperature Controller Default Setting Maximum Temp Setting (Commercial) ** Maximum Temp Setting (Residential) Minimum Temperature Setting Weight Efficiency Rating Noise level... -
Page 4: Consumer Safety Information
Consumer Safety Information Safety Definitions This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others. DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. -
Page 5: Operating Instructions
This appliance is one of the most advanced water heaters available. It provides a continuous supply of hot water at a preset temperature. This appliance is direct vent where air is brought in from the outside and combustion gases are exhausted to the outside. While electricity, water, and gas supplies are connected, this appliance produces hot water whenever a hot water tap is open. -
Page 6: Setting The Temperature
Setting the Temperature DANGER 1. Press the “Priority button” on the temperature controller. The green Priority light will glow indicating that this controller is controlling the temperature and that the water heater is ready to supply hot water. The priority can only be changed while no hot water is running. -
Page 7: Temperature Ranges
Temperature Ranges This water heater will attempt to provide hot water at the temperature setting even when the water flow is varied or when more than 1 tap is in use. The water heater can deliver water at only one temperature setting at a time. The available temperatures for a given model are provided below. -
Page 8: Maintenance
Maintenance WARNING Turn off the electrical power supply, the manual gas valve and the manual water control valve whenever servicing the unit. Repairs and maintenance should be performed by a qualified service technician. The appliance should be inspected annually by a qualified service technician. Verify proper operation after servicing. -
Page 9: Error Codes
This appliance has the ability to check its own operation continuously. If a fault occurs, an error code will flash on the Display of the temperature controller. This assists with diagnosing the fault and may enable you to overcome a problem without a service call. Please identify the code displayed when inquiring about service. WARNING Some of the checks below may need to be done by a qualified service technician. -
Page 10: Error Code Table
Error Code Table Code Fault Thermal Fuse Over Temperature Warning Outgoing Water Temperature Sensor Fault Heat Exchanger Outgoing Temperature Sensor Fault Combustion Air Temperature Sensor Fault Modulating Solenoid Valve Signal Abnormal Combustion Fan Failure SV0, SV1, SV2, and SV3 Solenoid Valve Circuit Fault Flame Sensing Device Fault... -
Page 11: Trouble Shooting For Common Issues
Trouble Shooting for Common Issues I don’t have any hot water when I open the tap. Make sure there is gas, water, and electricity to the water heater (power is turned on and the gas is turned on). When I was using the hot water, the water got cold. If you adjusted the flow from the tap to lessen it, you may have gone below the minimum flow required. -
Page 12: Error Code: Lc Or
Flushing the Heat Exchanger (Error Code: LC or 00) An “LC” or “00” error code indicates the unit is beginning to lime up and must be flushed. Failure to flush the appliance will cause damage to the heat exchanger. Damage caused by lime build-up is not covered by the unit’s warranty. -
Page 13: Installation Instructions
Only properly trained and qualified installers should install this appliance. The warranty may be voided due to improper installation or installation by a non-qualified installer. General Instructions WARNING Do not use substitute materials. Use only parts certified with the appliance. •... -
Page 14: Clearances From Appliance
Clearances from Appliance to Combustibles Top of 6 inches 12 inches Heater (152 mm) (305 mm) Back of 0 (zero) 0 (zero) Heater Front of 6 inches 24 inches Heater (152 mm) (610 mm) Sides of 2 inches 2 inches Heater (51 mm) (51 mm) -
Page 15: Electrical Connection
Electrical Connection The water heater requires a standard 3 prong 120 VAC, 60 Hz properly grounded wall outlet. Plug the 6ft long power cord into the wall outlet. Gas Piping General Instructions • A manual gas control valve must be placed in the gas supply line to the water heater. -
Page 16: Pipe Sizing Procedure - Example
Gas Piping Pipe Sizing Procedure - Example The gas supply must be capable of handling the entire gas load at the location. Gas line sizing is based on gas type, the pressure drop in the system, the gas pressure supplied, and gas line type. Refer to the National Fuel Gas Code, NFPA 54, for proper gas line sizing. -
Page 17: Water Piping General Instructions
Water Piping General Instructions • A manual water control valve must be placed in the water inlet connection to the water heater before it is connected to the water line. Unions may be used on both the hot and cold water lines for future servicing and disconnection of the unit. -
Page 18: Freeze Protection Piping
Freeze Protection Piping NOTICE Warranty does not cover damage due to freezing. When electrical power and gas are supplied to the water heater, it will not freeze in environments as cold as -30º F when protected from direct wind exposure. In the event of a power failure at temperatures below freezing the water heater should be drained of all water to prevent freezing damage. -
Page 19: Recommended Piping For Basic Installation
Recommended Piping for Basic Installation 3/4" Hot Water Supply Line For Building Fixtures 3/4" Ball Valve 3/4" Union Check Valve Pressure Relief Valve Water Heater This is not an engineered drawing. It is intended only as a guide and not as a replacement for professionally engineered project drawings. -
Page 20: Recommended Piping For Circulation Systems
Recommended Piping for Circulation Systems NOTE: For residential and commercial applications, this piping arrange- ment maintains full warranty. For this application: Pump should be controlled by an Aqua- stat, Timer or Combination Aquastat and Timer. Pump to be sized to maintain circulation loop temperature. -
Page 21: Optional Piping For Circulation Systems
Optional Piping for Circulation Systems NOTE: For residential and commercial applications, this piping arrangement reduces the warranty to the following: 3 years on heat exchanger 3 year on parts Full warranty will be maintained if an on-demand recirculation system in incorporated. -
Page 22: Venting Instructions Intake / Exhaust Guidelines
Venting Instructions Intake / Exhaust Guidelines Refer to the specific instructions on your vent product for additional installation requirements. • This water heater is a direct vent water heater and therefore is certified and listed with the vent system. You must use vent components that are certified and listed with the water heater model. -
Page 23: Maximum Vent Length
Venting Instructions Maximum Vent Length 1. Determine the number of 90 degree elbows in the vent system. (Two 45 degree elbows count as one 90 degree elbow.) 2. Refer to the table to find the maximum vent length based on the number of elbows. 3. -
Page 24: Venting Products
Venting Products Listed and Tested Vent Products for the 305 and 505 Models Manufacturer Ubbink Heat-Fab Metal-Fab Listed and Tested Vent Products for the 705 Model Appliance Manufacturer Product Adapter Heat-Fab Saf-T Vent 9401AMTK Z-Flex Z-Vent 2SVSNA04.5 ProTech FasNSeal FSAAU4 * Systems Metal-Fab Corr/Guard... -
Page 25: Flue Terminal Clearances (Ans Z21.10.3 ● Csa 4.3 )
Flue Terminal Clearances ( Clearance above grade, veranda, porch, deck, or balcony Clearance to window or door that may be opened Clearance to permanently closed window Vertical clearance to ventilated soffit, located above the terminal within a horizontal distance of 2 feet (61 cm) from the center line of the terminal Clearance to unventilated soffit Clearance to outside corner... -
Page 26: Additional Clearances - Vent Terminal
Additional Clearances - Vent Terminal Local codes supersede these clearances. • Avoid termination locations near a dryer vent. • Avoid termination locations near commercial cooking exhaust. Vent terminal (represents concentric vent terminal for the water heater) 12" (0.30 m ) to an inside corner (0.30 m) between water heater terminals... -
Page 27: Flue Installation For The 305 And 505 Models
Flue Installation for the 305 and 505 Models Horizontal Termination without using the Condensate Collector WARNING If the condensate collector is not used, the drain pipe must be capped to prevent exhaust gases and condensate from entering the building. The cap is supplied on the appliance. -
Page 28: Horizontal Terminations
Flue Installation for the 705 Model Air Intake Assembly The air intake system consists of a field supplied 4 inch diameter stainless steel, Schedule 40 PVC, ABS or CPVC pipe. A maximum 6 feet of semi-rigid flexible aluminum ducting can also be used. Foil wrapped dryer vent and cell core products are not authorized. -
Page 29: Vertical Terminations
Flue Installation for the 705 Model Horizontal with Concentric Termination Vertical Terminations The air intake requires a return bend or two 90º elbows to prevent entry of rain. The vent termination and air intake must be in the same pressure zone. 3”... -
Page 30: High Altitude Installation
High Altitude Installations Set dip switches 2 and 3 to the values shown in table below for your altitude. The default setting for the appliance is 0-2000 ft (0-610 m) with switches No. 2 and No. 3 in the OFF position. 0-2000 ft (0-610 m) Switch No. -
Page 31: Temperature Controller Installation Location
Temperature Controller Installation Location Indoor models have their controller built into the front panel. Additional controllers can also be installed. • The controller should be out of reach of small children. • Avoid locations where the controller may become hot (near the oven or radiant heater). •... -
Page 32: Mounting The Controller
Temperature Controller Installation Mounting the Controller Follow the procedure below to install additional controllers. 1. Determine a suitable location for the controller. 2. Make three holes in the wall as shown. 3. Run the cable between the controller and the water heater or the controller and the other controller. -
Page 33: For Your Safety Read Before Operating
Operating Instructions FOR YOUR SAFETY READ BEFORE OPERATING WARNING A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand. B. BEFORE OPERATING smell all around the appliance area for gas. -
Page 34: Technical Data
Pressure Drop Curve Outlet Flow Data 10.0 Technical Data Water Flow (gpm) delta T - Temperature Rise (ºF) 305, 505, 705 Indoor Manual... -
Page 35: Space Heating
Space Heating If the water heater is to be used for both water (potable) heating and space heating then the following apply. • The piping and components connected to the water heater shall be suitable for use with potable water. •... -
Page 36: Dimensions
Dimensions 305 and 505 Models DESCRIPTION Width Depth * Height - Unit Height - with brackets Hot Water Outlet - from wall * Hot Water Outlet - from center Cold Water Inlet - from wall * Cold Water Inlet - from center Gas Connection - from wall * Gas Connection - from center From base to gas connection... -
Page 37: Ladder Diagram
Ladder Diagram 3A(FUSE) ARRESTER VARISTOR WATERFLOW SENSOR WATERFLOW CONTROL DEVICE BY-PASSFLOW CONTROL DEVICE BY-PASS SERVO MODEL ONLY THERMAL FUSE OVERHEAT SWITCH OUTGOING WATER THERMISTOR HEAT EXCHANGER THERMISTOR AIR TEMPERATURE THERMISTOR INDOOR MODEL ONLY FROST SENSING SWITCH VARISTOR RELAY 1 SWITCHING POWER SUPPLY DC12V DC170V... -
Page 38: Warranty
What is covered? This Warranty covers any defects in materials or workmanship when the product is installed and operated according to written installation instructions, subject to the terms within this Limited Warranty document. This Warranty applies only to products that are installed by a factory authorized or licensed contractor. Improper installation may void this Warranty. -
Page 39: Warranty
How do I get service? You must contact a factory authorized/licensed contractor or authorized service provider for the repair of a product under this Warranty. For the name of a qualified/authorized service provider please contact your place of purchase, call 1-866-677-4960 or write to 500 Tennessee Waltz Parkway, Ashland City, TN 37015. Proof of purchase is required to obtain warranty service. - Page 40 U287-084 (00) Printed in Japan 09.01...
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