Takagi Mobius Water Heater T-M32 ASME Installation Manual And Owner's Manual
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T-M32 / T-M32 ASME
On-Demand Water Heater
Installation Manual and Owner's Guide
Mobius Water Heater™
Model T-M32 / T-M32 ASME
Suitable for potable water heating and space heating
FEATURING
• ENDLESS HOT WATER
• ON-DEMAND USAGE
• COMPACT, SPACE SAVING
• ENERGY CONSERVATION
• COMPUTERIZED SAFETY
• NO PILOT LIGHT
• EASY LINK SYSTEM
WARNING
This product must be installed and
serviced by a licensed plumber, a
licensed gas fitter, or a professional
service technician. Improper installation
and/or operation, or installation by an
unqualified
person,
warranty.
WARNING
If the information in this manual is not
followed exactly, a fire or explosion may
result, causing property damage,
personal injury, or death.
TAKAGI Industrial Co. USA, Inc.
5 Whatney
Irvine, CA 92618
Toll Free: (888) 882-5244 USA
Toll Free: (877) 877-4953 CANADA
For supplying potable
hot water
ASME model ONLY
will
void
the
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Related Manuals for Takagi Mobius Water Heater T-M32 ASME
Summary of Contents for Takagi Mobius Water Heater T-M32 ASME
- Page 1 If the information in this manual is not followed exactly, a fire or explosion may result, causing property damage, personal injury, or death. Mobius Water Heater™ Model T-M32 / T-M32 ASME Suitable for potable water heating and space heating FEATURING • ENDLESS HOT WATER • ON-DEMAND USAGE TAKAGI Industrial Co.
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Page 2: Table Of Contents
SCAQMD Rule 1146.2, CO emission does not PARTS LIST……………………………… exceed 400 PPM for normal input OUTPUT TEMPERATURE CHART…… WARRANTY……………………………… Takagi reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. - 2 -... -
Page 3: Introduction
• Please read all installation instructions completely before installing this product. • If you have any problems or questions regarding this equipment, consult with Takagi or its local representative. • The T-M32 Water Heater is an on-demand, tankless water heater designed to efficiently supply endless hot water for your needs. -
Page 4: Safety Guidelines
National Electrical Codes: ANSI/NFPA 70 in the USA or CSA standard C22.1 Canada Electrical Code Part 1 in Canada. Carefully plan where you intend to install your T-M32 Water Heater. Please ensure: • Your water heater will have enough combustible air and proper ventilation. -
Page 5: Installation
As with any water heating appliance, the potential for leakage at some time in the life of the product does exist. Takagi will not be responsible for any water damage that may occur. If you install a drain pan under the unit, ensure that it will not restrict the combustion air flow. -
Page 6: General
TM-DV32 direct vent conversion kit and convert the T-M32 to a sealed combustion unit. Direct venting allows the T-M32 to draw fresh intake air from the outside. The warranty will not cover damage caused to the unit due to installation in a contaminated environment that has not been converted using the TM-DV32. -
Page 7: Outdoor Installation
Left Bank of Dipswitches 4. The outdoor vent cap must be used when unit is installed outdoor. Takagi requires the use of its part No. TM-VC32. 5. When installed outdoors, the T-M32 water heater shall be wall-mounted or mounted on a stand. - Page 8 WARNING FOR INSTALLAUON LOCATIONS Do not install the heater where water, debris Do not have the vent terminal pointing toward or flammable vapors may get into the flue any opening into a building. Do not locate terminal. This may cause damage to the your heater in a pit or location where gas and heater and void the warranty.
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Page 9: Indoor Installation
199 sq. in. area. Combustible Air Supplied by Mechanical fan or Make up air device The T-M32 water heater is equipped with a combustible air sensor that will shut off the unit when inadequate combustible air supply to unit is detected. •... -
Page 10: Direct Intake Vent System
The T-M32 must be installed in a location where the proper amount of combustible air will be available to it at all times without obstructions. • If used as a direct vent appliance, the T-M32 requires a 4” combustible air supply pipe. The intake pipe must be sealed airtight. •... - Page 11 350ºF. For best results, a vent system should be as short and straight as possible. This Takagi water heater is a Category III appliance and must be vented accordingly with any 4” vent approved for use with Category III or Special BH type gas vent.
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Page 12: Vent Termination
• A proper sidewall vent terminator is recommended when the water heater is vented through a sidewall. If the T-M32 is converted to a direct-vent unit, a proper sidewall direct-vent terminator is to be used. General rules for venting the T-M32 water heater are: Place the water heater as close as possible to the vent terminator. - Page 13 • Follow the vent system to vent manufacturer’s instruction and local code. • Do not common vent or connect any vent from other appliances to the T-M32 vent. • Use 4” category III approved or Special BH, single or double wall stainless steel vent pipe.
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Page 14: Vent Clearances
VENT CLEARANCES Canada U.S.A Direct vent and other than Direct Direct vent Other than Direct Vent Vent Clearance above grade, veranda, porch, 1 foot 1 foot 1 foot deck, or balcony. 4 feet from below or Clearance to window or door that may be 3 feet 1 foot side opening. -
Page 15: Gas Supply And Gas Pipe Sizing
Until testing of the main gas line supply pressure is completed, ensure the gas line to the T-M32 is disconnected to avoid any damage to the water heater. - Page 16 Otherwise, flow capabilities and output temperatures will be limited. Install a manual gas shut-off valve between the T-M32 and the gas supply line. When the gas connections are completed, it is necessary to perform a gas leak test either by applying soapy water to all gas fittings and observing for bubbles or by using a gas leak detection device.
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Page 17: Water Connections
T-M32. In addition, a manual shut off valve is also recommended on the hot water outlet of the unit. If the T-M32 is installed within, or subjected to, a closed loop water system, a thermal expansion tank must be installed. -
Page 18: Pressure Relief Valve
The pressure relief valve must be manually operated periodically to check for correct operation. 10. For the T-M32 ASME model, the pressure relief valve must conform to and be installed in accordance with ASME code. As Close as... -
Page 19: Electrical Connections
T-M32 must be provided for service reasons. (Must comply with local codes). • Connect the power supply to the T-M32 exactly as shown in the wiring diagram; A green screw is provided in the junction box to ground the connection. -
Page 20: Remote Controller Connection
REMOTE CONTROLLER CONNECTION 1) Disconnect power supply from the T-M32. 2) Take off the T-M32’s front cover. 3) Please find the remote control terminal using the picture below (located around the lower right-hand side of the T-M32). 4) Open the plastic cover of the TM-RE30, and then attach the fork terminal to the connector base of the backside the TM-RE30 with two screws. -
Page 21: Pump Connection
The T-M32 can be used to control a recirculation pump. Proper pump control helps to preserve the life of the system and saves energy as well. The T-M32 pump control port is a “normally- open” dry contact, and therefore needs additional components to properly control a recirculation pump. -
Page 22: Pump Control Mode
2.6 GPM, in order to detect temperature in the system. Note: In this mode, the T-M32 will not provide the pump control. The termination of the pump is kept ON position continually. - Page 23 D) Normal Control (Default setting): No.6 and No.7 OFF: Feature: This mode provides no special pump control. The pump operation can only be turned ON and OFF by the TM-RE30. Function: If a pump is connected to the pump control terminal and both No.6 and No.7 are OFF, the pump will be made to run all the time as long as there is a power supply to the T- M32.
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Page 24: Easy Link System
24,000 BTU/h and 960,000 BTU/h. Cold • The T-M32 Easy Link system is limited to 4 units. If you connect more than 4 units, the first 4 units will work as part of the Easy Link system, but the other additional units will only work as individual units. - Page 25 Locate the left bank of dipswitches to the lower of the 7-seg. LED on the computer board of the T-M32 that you select to be the “MASTER” unit. Change dipswitch No. 8 to “ON”. Do not change any of the dipswitches on the “SLAVE” units.
- Page 26 CAUTION MASTER unit SLAVE-1 unit Connectors Connectors • If you connect the “ [1] (or [2]) ” connector of the “MASTER” unit “ to the MASTER (or [1]) ” connector of the “SLAVE-1” unit, Left bank of Left bank of the system will not work as the Dipswitches Dipswitches...
- Page 27 SLAVE-1 unit MASTER unit CAUTION Connectors Connectors • If you connect the “MASTER connector” of the “MASTER” unit to the “[3] connector” of the “SLAVE-1” unit, the “MASTER” unit and the “SLAVE-1”unit will display “761” error code. Left bank of Left bank of Dipswitches Dipswitches...
- Page 28 MULTI-UNIT SYSTEM FOR LARGE VOLUMES Multiple T-M32’s can be combined for a Multi-Unit system, along with the Multiple Unit Controller and Remote Controller (Parts TM-MC01 and TM-RE30). Each set of controllers (one TM-MC01 and one TM-RE30) can control from 2 units to 20 units for commercial or residential applications.
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Page 29: Multi-Unit System
MC01 computer board to the “ON” position. the TM-MC01 When the T-M32 is connected to the T-M1 as part of the Multi-unit system with the TM-RE10 or the TM-RE30, you can set the temperature from 99ºF to 167ºF/182ºF as shown below. -
Page 30: Initial Operation
Then close the hot water tap. 4. Fully open the manual 5. Turn on the 120 volt 60 Hz 6. Now you are ready to control valve power supply to the T-M32 enjoy hours of endless installed. water heater. hot water. - 30 -... -
Page 31: Normal Operation
Temperatures available under the Default Mode Temperatures available under the High Temperature Mode (unit:°F) DO NOT set to 185 °F if you use your T-M32 in recirculation system. Refer to p.34 3. Open a hot water tap. 4. Close the hot water tap. - Page 32 *To change the TM-RE30’s mode from Default Mode to High Temperature Mode, please follow the procedures below (the TM-RE30 must be installed prior to operating these procedures): DO NOT set to 185ºF if you use your T-M32 in a recirculation system. This will cause damage to the heater and void the warranty.
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Page 33: Flow
FLOW • The flow rate through the Mobius T-M32 is limited to a maximum of 9.0 GPM. • The temperature setting, along with the supply temperature of the water will determine the flow rate output of the unit. • Please refer to the temperature vs. gallons per minute chart on p.51 to determine the likely flow rates based on your local ground water temperature and your desired outlet water temperature combination. -
Page 34: Temperature Settings
• Only change the switches with the dark squares. The dark squares indicate which direction the dipswitch should be set to. • DO NOT set to 185 ºF if you use your T-M32 in a recirculation system. This will cause damage to the heater and void the warranty. -
Page 35: Maintenance And Service
• Keep the area around the water heater clear. Remove any combustible materials, gasoline or any flammable vapors and liquids. TAKAGI recommends having the unit checked once a year or as necessary by a licensed technician. If repairs are needed, any repairs should be done by a licensed technician. -
Page 36: General Troubleshooting
0.5 GPM through the water heater? (p. 31) • Is the unit frozen? • Is there enough gas in the tank? (for LP) • Is the flow rate enough to keep the T-M32 running? The hot water gets cold and stays cold. - Page 37 35 seconds in order to re- ignite quickly, as well as push all exhaust gas out of the flue. • Contact TAKAGI. Abnormal sounds come from the unit. ~ REMOTE CONTROLLER: TM-RE30 (OPTIONAL) ~ PROBLEM...
- Page 38 TROUBLESHOOTING – ERROR CODES • All Takagi units are self diagnostic for safety and convenience when trouble shooting. • If there is a problem with the installation or the unit, it will display a numerical error code on the TM-RE30 (if installed) or on the 7-Seg LED of the central computer board and section computer board to communicate the source of the problem.
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Page 39: Wiring Diagram
WIRING DIAGRAM A wiring diagram is located on the inside front panel of the appliance. Electrical Rating: 120 VAC, 60 Hz. Note: If any of the original wiring supplied with this appliance must be replaced, it must be replaced with appliance wiring material (180c) or its equivalent. -
Page 40: 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 water heater does not have a pilot. It is equipped with an ignition device that automatically lights the burner. - Page 41 WARNING The outlet hot water temperature of the T-M32 water heater is factory set at 120 ºF. Use this heater at your own risk. The set outlet water temperature can cause severe burns instantly or death from scalds. Test the water before bathing or showering.
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Page 42: Applications
• The T-M32 can be used to supply potable water and space heating and shall not be connected to any heating system or component(s) previously used with non-potable water where any chemicals were added to the water heating appliances. - Page 43 State of Massachusetts. There are a wide variety of variations to the application of controls and equipment presented. Designers must add all necessary safety and auxiliary equipment to conform to code requirements and design practice. For more details, contact the Takagi Technical Department at (888) 882-5244...
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Page 44: Additional Clearances
ADDITIONAL CLEARANCES Please follow all local and national codes in regards to proper termination clearances. In the absence of such codes, the following clearances can be used as guidelines. Local codes supersede these guidelines. For sidewall terminations 2ft. 1ft. 3ft. 2ft. -
Page 45: Optional Items
Louver termination and the Hood termination. For different wall thicknesses, there are 3 ranges of lengths available (refer to the T-Vent brochure for details). TK-KPWH4 TK-KPWL4 Install these vent terminations in accordance with Takagi’s installation Louver Hood instructions and any applicable local codes. Termination... -
Page 46: Components Diagram
0 0 2 0 5 2 0 5 2 Computer board assembly 0 5 2 7 1 6 Other than Part# 706, the T-M32 and the T-M32 ASME share the same components. 0 5 2 7 1 5 0 5 2... -
Page 47: Burner Assembly
Burner assembly The T-M32 and the T-M32 ASME share the same components. 1 0 3 1 0 2 1 0 1 4 0 1 1 1 3 1 5 2 1 5 3 7 0 7 1 5 2 1 0 5... - Page 48 Other than Part# 211, Part# 439, Part# 440 and Part# 441, the Water way assembly T-M32 and the T-M32 ASME share the same components. 4 0 1 T-M32 4 1 4 4 2 0 4 2 3 4 2 0...
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Page 49: Parts List
Other than the front cover (No.9), burner assembly (No.211), hot pipe (No.439), cold pipe (No.440), connection pipe (No.441) and “flow sensor, gas proportional valve connection and thermistors” wire (No.706), all of the T-M32 ASME’s components are the same as the T-M32. Item#... - Page 50 Item# Part# Description EX002 Heater 101 EZM18 O-ring P18 EPDM (Purple) EM404 Water inlet EM45E Hot pipe for T-M32 ASME O-ring JASO# 1016 EPDM EZN16 EM45D Cold pipe for T-M32 ASME (Purple) Connection pipe for T-M32 EX021 Heater plate EM45F...
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Page 51: Output Temperature Chart
Out Put Temperature vs. GPM (Max. 9.0 GPM) with Various Ground Water Temperature Correct Gas pipe size can be expect this chart 10.0 40 F 50 F 60 F 70 F Out put Hot Water Temperature 40 F 50 F 60 F 70 F ＊When the set temperature is 150ºF or higher, maximum flow rate is limited to 5.3 GPM. -
Page 52: Warranty
Internet (www.takagi.com/warranty). General terms of limited warranty: The manufacturer, Takagi Industrial Co. USA, Inc. will honor our warranty to the original retailed buyer only, and it is not transferable. This warranty strictly covers failed mechanical and electrical parts due to...