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Commercial Condensing Tankless Water Heater
Installation Manual and Owner's Guide
R
ANSI Z21.10.3 ・ CSA 4.3
Models
• CT-199 Indoor
Gas Tankless Water Heater
Suitable for combination potable water heating and
space heating. Please refer to local codes for space-
heating compliance.
FEATURING
• ENDLESS HOT WATER
• ON-DEMAND USAGE
• COMPACT, SPACE SAVING
• ENERGY CONSERVATION
• COMPUTERIZED SAFETY
• NO PILOT LIGHT
• Complies with SCAQMD Rule
1146.2 for natural gas Low NOx
Emissions of 14 ng/J or 20 ppm.
• EASY-LINK SYSTEM
• MULTI-UNIT SYSTEM
Keep this manual near the water heater for future reference whenever maintenance, adjustment, or
service is required.
D
R
• CT-199 Outdoor
(USA only)
TM
If the information in these
instructions is not followed
exactly, a fire or explosion may
result causing property damage,
WARNING
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 electric 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.
If you have any questions, please
call or write to:
In the United States
500 Tennessee Waltz Parkway
Ashland City, TN 37015
Toll Free: 1-877-737-2840
In Canada
599 Hill Street West
Fergus, ON N1M 2X1
1-888-479-8324
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Table of Contents
Related Manuals for John Wood SCT 199I-P
Summary of Contents for John Wood SCT 199I-P
- Page 1 Commercial Condensing Tankless Water Heater Installation Manual and Owner’s Guide ANSI Z21.10.3 ・ CSA 4.3 If the information in these Models instructions is not followed exactly, a fire or explosion may • CT-199 Indoor • CT-199 Outdoor result causing property damage, WARNING (USA only) personal injury or death.
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Page 2: Table Of Contents
Contents CONTENTS Installation Manual Owner's Guide SPECIFICATIONS ..........4 OPERATING SAFETY ........44 INTRODUCTION ..........5 NORMAL OPERATION ........46 SAFETY GUIDELINES........6 BUILT-IN CONTROLLER SAFETY DEFINITION ........6 AND REMOTE CONTROLLER ....46 GENERAL ............6 GENERAL ............46 INSTALLATION ..........7 OUTLET WATER TEMPERATURE GENERAL ............7 SETTING .............47 CLEARANCES ..........9 TEMPERATURE TABLE OF CONTROLLER .47 INCLUDED ACCESSORIES ......9... -
Page 3: Installation Manual
Installation Manual Installation Manual CONGRATULATIONS Congratulations and thank you for choosing our tankless water heater. Before use, we recommend that you read through this installation manual carefully. Keep this manual for future reference. If you need an additional manual, contact the manufacturer or your local distributor. -
Page 4: Specifications
Installation Manual Specifications SPECIFICATIONS Model CT-199 Indoor CT-199 Outdoor Natural Gas Input Min.: 15,000 BTU/h (Operating Range) Max.: 199,000 Propane Input Min.: 13,000 BTU/h (Operating Range) Max.: 199,000 Gas Connection 3/4" NPT 3/4" NPT Water Connections Water Pressure* psi (MPa) 15 - 150 (0.1 - 1) Natural gas "... -
Page 5: Introduction
Installation Manual Introduction INTRODUCTION • This manual provides information necessary for the installation, operation, and maintenance of the water heater. • The model description is listed on the rating plate which is attached to the side panel of the water heater. •... -
Page 6: Safety Guidelines
Installation Manual Safety Guidelines SAFETY GUIDELINES SAFETY DEFINITION Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. DANGER Indicates an imminently hazardous situation which, if not avoided, could result in death or serious injury. WARNING Indicates an imminently hazardous situation which, if not avoided, could result in minor or moderate injury. -
Page 7: Installation
Installation Manual Installation INSTALLATION GENERAL 1. Follow all local codes, or in the absence of local codes, follow the current edition of the National Fuel Gas Code: ANSI Z223.1/NFPA 54 in the USA or B149.1 Natural Gas, Propane Installation Code in Canada. - Page 8 Installation Manual Installation • Installation and service must be performed by a qualified installer (for example, a licensed plumber or gas fitter). Otherwise, the warranty will be void. • The installer (licensed professional) is responsible for the correct installation of the water heater and for compliance with all national, state/provincial, and local codes.
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Page 9: Clearances
Installation Manual Installation CLEARANCES Back Maintain all clearances around the water Side heater. Failure to do so could create a fire Side hazard, potentially leading to death, serious Front injury, and/or property damage. WARNING Bottom Model Bottom Front Back Sides 12 in. - Page 10 Installation Manual Installation 2. Pipe cover: 1. Temperature remote controller: 100112718 (TH-PC03) 100112572 (TM-RE40) The pipe cover protects The temperature remote controllers have the plumbing pipes to three functions. It allows the output the water heater from temperature from the water heater to be unexpected adjustments.
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Page 11: Warning For Installations
Installation Manual Installation WARNING FOR INSTALLATIONS FOR YOUR SAFETY, READ BEFORE INSTALLATION: Do not install the heater where water, debris or Do not have the vent terminal pointing toward flammable vapors may get into the flue terminal. any opening into a building. Do not locate your This may cause damage to the heater and void the heater in a pit or location where gas and water warranty. -
Page 12: High-Altitude Installations
Installation Manual Installation HIGH-ALTITUDE INSTALLATIONS • Adjust the appropriate DIP switches according to model and elevation as shown below. DO NOT adjust the other DIP switches. • Turn off the power supply to the water heater before changing the DIP WARNING switch settings. -
Page 13: Venting Instructions
Installation Manual Installation VENTING INSTRUCTIONS Indoor models -General- • Improper venting of this appliance can result in excessive levels of carbon monoxide which can result in severe personal injury or death. • Improper installation can cause nausea or asphyxiation, severe injury or death from carbon monoxide and flue gases poisoning. -
Page 14: Combustion Air Supply
Installation Manual Installation -Combustion air supply- This gas water heater requires an adequate source of clean air for combustion and ventilation. Without sufficient air, your water heater may not operate properly and may emit excessive and abnormal amounts of carbon monoxide which may result in WARNING carbon monoxide poisoning or death. - Page 15 Installation Manual Installation Your water heater’s BTU/h rating is on the rating plate. The BTU/h ratings should be on the other appliances’ rating plates. If you have trouble determining the BTU/h ratings, contact the manufacturer or have a qualified person determine the ventilation requirements. : If you are replacing your old water heater with one that has a higher BTU/h rating, the amount of NOTICE ventilation required may be greater.
- Page 16 Installation Manual Installation Determine type of ventilation There are several types of ventilation that can be used. The various options are listed below. See also the illustrations on the next page. 1. Direct to outdoors 2. Vertical ducts 3. Horizontal ducts 4.
- Page 17 Installation Manual Installation Combustion air supply options Gable vent to outdoors Install above insulation 12” (305 mm) Outlet air to Confined maximum attic 1 in (6.5 cm Space per 4,000 btu/h Two permanent Openings Confined Alternate 1 in (6.5 cm Space Inlet air from Air Inlet per 4,000 btu/h the crawl space...
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Page 18: Exhaust Vent (Abs,Pvc,Cpvc, Or Polypropylene Vent)
Installation Manual Installation -Exhaust vent (ABS, PVC, CPVC, or polypropylene vent)- The Indoor models can be vented with ABS, PVC, CPVC, or polypropylene (temperature rated up to 149 °F). Vent material certified to ULC S636 standards is recommended in the USA. In Canada, plastic venting must be certified to ULC S636 standards. -
Page 19: Dip Switch Settings For Vent Length (Abs,Pvc,Cpvc, Or Polypropylene Vent)
Installation Manual Installation -DIP switch settings for vent length- PVC, CPVC, ABS, or polypropylene vent Typical installations using • Adjust the appropriate DIP switches according to model and vent length as shown below. DO NOT adjust the other DIP switches. • Turn off the power supply to the water heater before changing the DIP switch settings. - Page 20 Installation Manual Installation <How to install intake and exhaust venting (two-pipe, direct-vent) with the indoor model> 3" (76 mm) vent connection 4" (102 mm) vent connection 4" (102 mm) 4" (102 mm) 3"(76 mm) 3" (76 mm) straight pipe straight pipe straight pipe straight pipe 3" (76 mm) coupling 3"x 4" 3" (76 mm) coupling (included) (76 x 102 mm) 3"x 4"...
- Page 21 Installation Manual Installation <How to install single vent with the indoor model> 3" (76 mm) vent connection 4" (102 mm) vent connection 4" (102 mm) straight pipe 3"(76 mm) straight pipe 3"x 4" (76 x 102 mm) 3” (76 mm) elbow 3" (76 mm) coupling increaser with bird screen 3” (76 mm) elbow (included) with bird screen Exhaust vent Intake vent collar collar...
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Page 22: Exhaust Vent (Stainless Steel Vent)
Installation Manual Installation -Exhaust vent (Stainless steel vent)- This is a Category IV appliance and must be vented accordingly. The vent system must be sealed airtight. All seams and joints without gaskets must be sealed with high heat resistant silicone sealant or UL listed aluminum adhesive tape having a minimum temperature rating of 160 °F (71 °C). - Page 23 Installation Manual Installation <How to install stainless steel vent with the indoor models> 4" vent connection for direct-vent installation 4" vent connection for single vent installation 4” (102 mm) 4" (102 mm)elbow 4" (102 mm) stainless steel vent 4" (102 mm) with bird screen stainless steel vent straight pipe stainless straight pipe steel vent Exhaust vent collar straight pipe Intake vent of the Indoor models Exhaust vent collar collar (Female)
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Page 24: Common Venting System
Installation Manual Installation -Common-venting system- The Indoor model can be vented together using the same exhaust and intake venting. • Up to 8 water heaters can be common-vented together. • A non-return valve (100113130) must be used for each water heater that is part of the system. •... - Page 25 Installation Manual Installation To determine the dimension of a common-venting system Determine the vent diameter (D) and the total vent length based on the number of water heaters installed. The total vent length (L) consists of the horizontal width (W) and the vertical height (H). See the table below. Elbow terminal Elbow terminal Intake...
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Page 26: Vent Termination Clearances
Installation Manual Installation -Vent termination clearances- Inside corner = Vent terminal detail = Air supply inlet = Area where the terminal is not permitted Fixed Operable Fixed closed closed Operable Regulator/Gas meter vent outlet Canada Installations US Installations Direct vent and other than Other than Direct vent direct vent... -
Page 27: Clearances For Sidewall Terminations
Installation Manual Installation -Clearances for sidewall terminations- Improper installation can result in carbon monoxide poisoning or death. Follow all local and national codes in regards to proper termination clearances. In the absence of such codes, the clearances below can be used as guidelines. Local codes supersede these WARNING guidelines. -
Page 28: Clearances For Rooftop Terminations
Installation Manual Installation -Clearances for rooftop terminations- Follow all local and national codes in regards to proper termination clearances. In the absence of such codes, the clearances below must be met. Local codes supersede these clearances. Failure to observe this warning may result in severe personal injury or death. WARNING Canadian requirements differ from the guidelines in this section. -
Page 29: Gas Supply And Gas Pipe Sizing
Installation Manual Installation GAS SUPPLY AND GAS PIPE SIZING -General- • Do not use this water heater with any gas other than the one listed on the rating plate. • Ensure that any and all gas regulators used are operating properly and providing gas pressures within the specified range shown below. -
Page 30: Natural Gas Supply Piping
Installation Manual Installation -Natural gas supply piping- Maximum delivery Capacity in Cubic Feet of Gas per Hour (based on IPS Pipe carrying Natural Gas with 0.60 Specific Gravity with a Pressure Drop of 0.5" W.C.). Based on Energy Content of 1,000 BTU/Cubic ft: The water heater requires 199 Cubic ft/hr for the CT-199 model. -
Page 31: Water Connections
Installation Manual Installation WATER CONNECTIONS Do not use this appliance if any part has been under water. Immediately contact a qualified installer or service agency to replace a flooded water heater. Do not attempt to repair the unit! It must be replaced! WARNING Do not reverse the hot outlet and cold inlet connections to the water heater. -
Page 32: Condensate Drain
Installation Manual Installation CONDENSATE DRAIN • The water heater does not include a built-in condensate neutralizer cartridge for reducing the pH level of condensate water. If local codes dictate that condensate must be neutralized prior to drainage, a condensate neutralizer must be installed. An accessory Neutralizer assembly (100112159/TH-NT01) is sold separately. - Page 33 Installation Manual Installation Installation Installation without neutralizer with neutralizer 1/2" MPT 1/2" MPT condensate condensate connection 1/2" connection Condensate 1/2" Condensate drain tube* drain tube* 1/2" MPT x 3/8" FPT (Included with Neutralizer accessory) 1/2" Overflow bypass* Condensate (1/2" Condensate Neutralizer cartridge (Included drain tube* drain tube)
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Page 34: Electrical Connections
Installation Manual Installation ELECTRICAL CONNECTIONS • Follow the electrical code requirements of the local authority having jurisdiction. In the absence of such requirements, follow the current edition of the National Electrical Code ANSI/NFPA 70 in the U.S. or the current edition of CSA C22.1 Canadian Electrical Code Part 1 in Canada. -
Page 35: Temperature Remote Controller
Installation Manual Installation TEMPERATURE REMOTE CONTROLLER -Included accessories-Outdoor model only • The remote control is an optional accessory that can be installed in a hall, closet, etc., to allow for temperature adjustment without having to go to the heater. • When installed, the remote will take priority over the built-in controller of indoor models. - Page 36 Installation Manual Installation 4. Tighten the two Fork terminals beneath the two Remote controller terminal screws on the back of the main body. (Fig. D-1) 5. Cut out the inlet for the remote controller cable from the bottom of the main body. (Fig. D-2) 6.
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Page 37: Easy-Link System
Installation Manual Installation EASY-LINK SYSTEM The CT-199 model water heater can combine with the following approved heaters with communication cables to work as a multiple-unit manifold system. • The built-in Easy-Link System allows up to 4 units to manifold together. •... - Page 38 Installation Manual Installation 5. Between the “PARENT” and the “CHILD-1” units: Connect the “PARENT” connector of the “PARENT” unit to the “1” connector of the “CHILD-1” unit using the supplied linking cable. 6. Between the “CHILD-1” and the “CHILD-2” units: Connect the “2”...
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Page 39: Multi-Unit System
Installation Manual Installation MULTI-UNIT SYSTEM Multiple CT-199 models can be combined for a Multi-Unit System, along with the multi-unit controller (Part 100112691 (TM-MC02)). The multi-unit controller can control from 2 units to 20 units for commercial or residential applications. For a 20-unit system, the computer can modulate between the usages of 13,000 BTU/h (Propane) or 15,000 BTU/h (Natural gas) to 3.98 Million BTU/h. -
Page 40: Applications
Installation Manual Applications APPLICATIONS -Space-heating applications- • This water heater is suitable for combination water (potable) heating and space heating and not suitable for space heating applications only. • In order to purge air in water pipes within a closed-loop system, an air vent and air separator should be installed in the system. -
Page 41: Dual-Purpose Hot Water Heating
Installation Manual Installation -Dual-purpose hot water heating- (Domestic and Space Heating): Diagrammatic layout of radiant heating and domestic water heater. All water piping should be insulated in accordance with 780 CMR (Massachusetts energy code) 3-inch gas exhaust vent (Discharge must Cold water supply Automatic tempering device comply with local and... -
Page 42: Initial Operation
Installation Manual Initial operation INITIAL OPERATION FOR YOUR SAFETY, READ BEFORE OPERATING • Check the GAS and WATER CONNECTIONS for leaks before firing unit for the first time. • Open the main gas supply valve to the unit using only your hand to avoid any spark. Never use tools. -
Page 43: Owner's Guide
Owner's Guide Operating Safety Owner's Guide CONGRATULATIONS Congratulations and thank you for choosing our tankless water heater. Before use, we recommend that you read through this owner's guide carefully. Keep this manual for future reference. If you need an additional manual, contact the manufacturer or your local distributor. -
Page 44: Operating Safety
Owner's Guide Operating Safety OPERATING SAFETY FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. 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. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance. • Do not touch any electric 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. C. Use only your hand to turn the gas shutoff valve. Never use tools. If the valve will not turn by hand, don’t try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion. D. Do not use this appliance if any part has been under water. Immediately contact a qualified installer or service agency to replace a flooded water heater. Do not attempt to repair the unit! It must be replaced! OPERATING INSTRUCTIONS 1. STOP! Read the safety information above on this label. 2. Turn off all electric power to the appliance. 3. Do not attempt to light the burner by hand. 4. Turn the gas shutoff valve located on the outside of the unit to the closed position. 5. Wait five (5) minutes to clear out any gas. If you then smell gas, STOP! Follow “B” in the safety information above on this label. If you don’t smell gas, go to the next step. - Page 45 Owner's Guide Operating Safety DANGER Vapors from flammable liquids will explode and catch fire causing death or severe burns. Do not use or store flammable products such as gasoline, solvents or adhesives in the same room or area near the water heater. Do not install water heater where flammable products will be stored or used unless the main burner is at least 18” above the floor. This will reduce, but not eliminate the risk of vapors being ignited by the main burner. Flammable Vapors FLAMMABLES Read and follow water heater warnings and instructions. If the owner’s manual is missing, contact the retailer or manufacturer. Keep flammable products: Vapors: 1. Far away from heater. 1. Cannot be seen. 2. In approved containers. 2. Are heavier than air. 3. Tightly closed and out of reach of children. 3. Go a long way on the floor. 4. Water heater has a main burner, which may 4. Can be carried from other rooms to the main come on at any time and will ignite flammable...
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Page 46: Normal Operation
Owner's Guide Normal Operation NORMAL OPERATION BUILT-IN CONTROLLER AND REMOTE CONTROLLER The illustration below shows an example of the controllers. The exact display may differ from examples. Built-in controller Remote controller Display for Temperature "INFO" Button When the STAND BY LED is ON, the hot water temperature will be Each time the button is pressed, displayed. -
Page 47: Outlet Water Temperature Setting
Owner's Guide Normal Operation OUTLET WATER TEMPERATURE SETTING -Set temperature Screen on the controller Operation Built-in controller Remote controller Turn on the 120 VAC power supply to the unit (the water heater or the multi-unit controller). Press the "ON/OFF" button on the controller in order to turn the controller on. -
Page 48: Additional Features
Owner's Guide Normal Operation ADDITIONAL FEATURES -Information mode- You can get some information about the water heater condition by pressing the "INFO" button. For more information, follow the procedures below: Screen on the controller INFO Operation Button Built-in controller Remote controller Inlet water temperature will be Inlet water temperature 1st. -
Page 49: Temperature Settings On The Pcb
Owner's Guide Normal Operation TEMPERATURE SETTINGS ON THE PCB (WITHOUT REMOTE CONTROLLER) • Adjust the appropriate DIP switches according to model and temperature as shown below. DO NOT adjust the other DIP switches. • Turn off the power supply to the water heater before changing the DIP switch WARNING settings. -
Page 50: Freeze Protection System
Owner's Guide Normal Operation FREEZE PROTECTION SYSTEM • This water heater comes equipped with heating blocks to protect it from damage associated with freezing. When the freeze protection thermostat senses air temperature below 36.5 (2.5 ), the °F °C blocks will heat up to prevent freezing of the unit. •... -
Page 51: Measuring Inlet Gas Pressure
Owner's Guide Normal Operation -Measuring inlet gas pressure- 1. Turn off all electric power to the water heater if service is to be performed. 2. Turn the manual gas valve located on the outside of the unit to the off position. 3. -
Page 52: Troubleshooting
Owner's Guide Troubleshooting TROUBLESHOOTING GENERAL PROBLEM SOLUTIONS It takes a long time to • The time it takes to deliver hot water from the water heater to your fixtures get hot water at the depends on the length of piping between the two. The longer the distance fixtures. -
Page 53: Error Codes
Owner's Guide Troubleshooting PROBLEM SOLUTIONS Controller does not • Make sure the unit is supplied with power. display anything when • Make sure the connection to the unit is correct. (pp. 35 and 36) the power button is NOTICE: turned on. When the unit has not operated for five minutes or more, the display of the controllers turns off to conserve energy. -
Page 54: Single Unit Installation
Owner's Guide Troubleshooting -Single unit Installation- Example: If your unit has a “321” error code (which signifies an inlet thermistor failure) • Indicator on the built-in controller or remote controller : “321” will be displayed on the screen. Error code •... -
Page 55: Fault Analysis Error Code
Owner's Guide Troubleshooting Outdoor model installation Indicator on the remote controller of Parent unit (If it is installed): “321” and "2" will alternately flash on the display. No. 2 Unit: The green Unit #1 Unit #2 Unit #3 Unit #4 LED on the computer PARENT CHILD... - Page 56 Owner's Guide Troubleshooting Green Malfunction Controller Diagnosis description Outlet thermistor failure Flashes • Check for connection/breakage of wires and/or debris on therm- Exhaust thermistor istor (Part #407, 408, 411, 715). failure (Indoor model Flashes only) Air-fuel ratio rod fail- • Check for connection/breakage of wires (Part #709) and/or soot on the AFR rod (Part #108).
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Page 57: Components Diagram
Owner's Guide Components Diagram COMPONENTS DIAGRAM Case assembly Outdoor model Indoor model Temperature controller Temperature Indoor model remote controller Page... - Page 58 Owner's Guide Components Diagram Computer board assembly 707 722 Surge box assembly Page...
- Page 59 Owner's Guide Components Diagram Burner assembly Burner assembly 109 111 Manifold assembly Page...
- Page 60 Owner's Guide Components Diagram Water Way assembly Bypass section Water outlet section Water inlet section Page...
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Page 61: Parts List
Owner's Guide Parts List PARTS LIST Part # Item # Description CT-199 model Case assembly for Indoor model for Outdoor model Front cover for Indoor 100074665 for Outdoor 100074666 Intake air port assembly 100074667 Bracket Junction box 100074668 Power supply cord assembly 100074669 Back guard panel Chamber fixing plate... - Page 62 Owner's Guide Parts List Part # Item # Description CT-199 model Pressure port 100074227 Combustion chamber tube 100074528 Gas inlet 100074616 Gas inlet ring 100074526 Surge box plate O-ring P18 NBR (Black) 100074533 O-ring P20 NBR (Black) 100074242 Silicon ring for Outdoor model 100074678 Exhaust port for Outdoor model 100074679...
- Page 63 Owner's Guide Parts List Part # Item # Description CT-199 model Fastener “16-25A” 100074389 Fastener “6-15” 100074297 Flat heater 100074686 Drain tube 100074687 Cold pipe 100074689 Stainless heat exchanger out pipe 100074690 Header connection 100074691 Drain port 100074692 Thermistor fixing plate 100074291 Exhaust thermistor gasket 100074296...
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Page 64: Output Temperature Chart
Owner's Guide Output Temperature Chart OUTPUT TEMPERATURE CHART Chart is based on properly sized gas line. Output Temperature vs. GPM (Max. 10.0 GPM) with Various Inlet Water temperature (L/M) 12.0 40°F （4℃） 50°F （10℃） 60°F （16℃） 70°F （21℃） 10.0 Set temp. °F (°C) (38) (40) (43)
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