Takagi T-M50 ASME Installation Manual And Owner's Manual
  1. Manuals
  2. Brands
  3. Takagi Manuals
  4. Water Heater
  5. T-M50
  6. Installation manual and owner's manual

Takagi T-M50 ASME Installation Manual And Owner's Manual

On-demand water heater
Hide thumbs Also See for T-M50 ASME:
Table of Contents

Advertisement

Quick Links

Download this manual
T-M50 / T-M50 ASME
On-Demand Water Heater
Installation Manual and Owner's Guide
Mobius Water Heater™
Model T-M50 / T-M50 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

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the T-M50 ASME and is the answer not in the manual?

Questions and answers

Related Manuals for Takagi T-M50 ASME

Summary of Contents for Takagi T-M50 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-M50 / T-M50 ASME Suitable for potable water heating and space heating FEATURING • ENDLESS HOT WATER • ON-DEMAND USAGE TAKAGI Industrial Co.

  • Page 2: Table Of Contents

    SCAQMD Rule 1146.2, CO emission does not PARTS LIST……………………………… exceed 400 PPM for normal input OUTPUT TEMPERATURE CHART…… PRODUCT REGISTRATION AND LIMITED 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-M50 Water Heater is an on-demand, tankless water heater designed to efficiently supply endless hot water for your needs.
  • Page 4 TWO COMBUSTION SECTIONS WITHIN THE T-M50 Left combustion section Right combustion section The T-M50 contains two combustion sections. The section that turns on first is whichever section the T-M50 decides is the primary section. The moment at which the secondary section fires will depend on the total flow rate and set temperature of the water heater: Flow rate at which the secondary section fires T-M50 set temperature...

  • Page 5: Safety Guidelines

    SAFETY GUIDELINES • Installation and service must be performed by a qualified installer (for example, a licensed plumber or gas fitter), otherwise the warranty by Takagi will be void. • The installer (licensed professional) is responsible for the correct installation of your Mobius T-M50 Water Heater and for compliance with all WARNING national, state/provincial, and local codes.

  • Page 6: 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 7: General

    GENERAL 1. The manifold gas pressure is preset at the factory. It is computer controlled and should not need adjustment. 2. Maintain proper space for servicing. Install the unit so that it can be connected or removed easily. Refer to p. 8 and p. 10 for proper clearances. 3.

  • Page 8: Outdoor Installation

    Lower 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-VC50. 5. When installed outdoors, the T-M50 water heater shall be wall-mounted or mounted on a stand.
  • Page 9 1 Ft . （ USA ） 3 Ft . （ Canada ） 3 Ft . （ Canada ） Takagi Do not install next to a dryer or any source of airborne debris that can be trapped inside the combustion chamber, unless the system is direct vented.

  • Page 10: Indoor Installation

    WARNINGINDOOR INSTALLATION Top 12” 1. Follow all local codes, or in the absence of local codes, follow the most recent edition of the National Fuel Gas Code: ANSI Z223.1/NFPA 54 in the USA or CAN/CSA B149.1 Natural Gas, Propane Installation Back 0.5”...

  • Page 11: Direct Intake Vent System

    Change the dipswitch settings to the direct vent system. (See diagram below) • Sidewall venting is recommended for the direct vent system. • Takagi recommends running the exhaust vent and the intake pipe parallel. Make sure power to the unit is turned OFF before changing the dipswitch settings.

  • Page 12: Venting Instructions

    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 5” vent approved for use with Category III or Special BH type gas vent.

  • Page 13: Vent Termination

    VENT TERMINATION WARNING: Improper installation can cause nausea or asphyxiation, severe injury or death from carbon monoxide and flue gases poisoning. Improper installation will void product warranty. • The vent terminator provides a means of installing vent pipe through the building wall and must be located in accordance with ANSI Z223.1/NFPA 54, or in Canada with CAN/CSA- B149.1 and local applicable codes.
  • Page 14 Horizontal Installation Diagram Wall Vertical Condensation Drain (Install according to local codes) Sidewall Vent Terminator TK-BF50 Vent Damper (Recommended for freezing weather conditions: 36°F and below) Rain Cap Vertical Installation Diagram Roof Roof Flashing TK-BF50 Vent Damper (Recommended for freezing weather conditions: 36°F and below) Vertical Condensation Drain...

  • Page 15: 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 16: Gas Supply And Gas Pipe Sizing

    Contact your local distributor to get the correct unit for your gas type. Conversion done by anyone other than the manufacturer will void all warranty. Takagi is not liable for any property and/or personal damage resulting from unauthorized conversions.
  • Page 17 Divide each appliance’s BTU requirement by 1000BTU to get the appliances Cubic Ft. requirement. T-M50 Takagi into account the distance the appliance is from the gas Dryer meter, look in the above gas chart to properly size the line. 380,000BTU...

  • Page 18: Water Connections

    WATER CONNECTIONS FOR YOUR SAFETY, READ BEFORE OPERATING: Do not use this water heater if any part has been submersed under water. Immediately call a licensed professional to inspect the water heater and to replace any damaged parts. All pipes, pipe fittings, valves and other components, including soldering materials, must be suitable for potable water systems.

  • Page 19: Pressure Relief Valve

    10. When ASME model is installed, the pressure relief valve should be conformed and installed in accordance with ASME code. 11. For the T-M50 ASME model, the pressure relief valve must conform to and be installed in accordance with ASME code.

  • Page 20: Electrical Connections

    ELECTRICAL CONNECTIONS WARNING: Follow the electrical code requirements of the local authority having jurisdiction. In the absence of such requirements, follow the latest edition of the National Electrical Code ANSI/NFPA 70 in the U.S. or the latest edition of CSA C22.1 Canadian Electrical Code, Part 1, in Canada.

  • Page 21: Remote Controller Connection

    REMOTE CONTROLLER CONNECTION 1) Disconnect power supply from the T-M50. 2) Take off the T-M50’s front cover. 3) Please find the remote control terminal using the picture below (located around the lower right-hand side of the T-M50). 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 22: Pump Connection

    If the pump is connected to any of the SLAVE units, the pump will not work. These components are not included with Takagi water heaters and are Power supply for relay external to the unit. They must be acquired separately.

  • Page 23: Pump Control Mode

    PUMP CONTROL MODE The T-M50 provides the four types of the pump control modes. The pump control modes are selected by changing dipswitch settings. The dipswitches are located in the upper bank of dipswitches in the lower-left quadrant of the central computer board in the T-M50. (See picture below) A) No.

  • Page 24: Easy Link System

    4 units will work as part of the Easy Link system, but the other additional units will only work as individual units. • The T-M50 cannot be linked with other different Takagi CAUTION models in the Easy Link system and Multi-Unit system.
  • Page 25 Easy Link Connection Procedures 1. Choose one of your units as the “MASTER” unit. 2. “The MASTER” Locate the lower bank of dipswitches to the right of the 7-seg. LED on the central computer board of the T-M50 that you select to be the “MASTER” unit. Change dipswitch No. 8 to “ON”. Do not change any of the dipswitches on the “SLAVE”...
  • Page 26 CAUTION • If you connect the “SLAVE IN (or SLAVE OUT) connector” of the “MASTER” unit to the “MASTER (or SLAVE IN) connector” of the “SLAVE-1” unit, the system will not work as the easy link system. The unlit and the units will work as individual units. Wrong connection between the “MASTER”...

  • Page 27: Multi-Unit System

    • If the TM-RE30 remote controller (optional) is used, it has to be connected to the “MASTER” unit. If the TM-RE30 is connected to a “SLAVE” unit, it will only control that particular individual “SLAVE” unit and will not control the Easy Link system as a whole. SLAVE unit MASTER unit Connectors...
  • Page 28 An individual cut-off switch is recommended for each unit in a multi-unit system for the purpose of maintenance. Multi-Unit System Connection Diagram Multi-Unit Controller (TM-MC01) and Temperature Remote Controller (TM-RE30) wiring: Unit 1 Unit2 Unit3 Unit4 TM-MC01 Connectors Connectors Connectors Connectors TM-RE30 Dipswitch...

  • Page 29: Initial Operation

    INITIAL OPERATION FOR YOUR SAFETY, READ BEFORE OPERATING: • Check the GAS and WATER CONNECTIONS for leaks before firing it 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 30: Normal Operation

    NORMAL OPERATION • Flow rate to activate the T-M50 : 0.5 gallon per minute • Flow rate to keep the T-M50 running : 0.4 gallon per minute 1. NORMAL OPERATION WITHOUT REMOTE CONTROLLER 1. Open a hot water tap. 2. Mix cold water with the hot to get 3.
  • Page 31 *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-M50 in a recirculation system. This will cause damage to the heater and void the warranty.

  • Page 32: Flow

    • Takagi also highly recommends the use of a back flow vent damper and/or converting the T- M50 to a direct-vent unit to minimize the amount of cold air entering through the exhaust venting when the water heater is off.

  • Page 33: Temperature Settings

    TEMPERATURE SETTINGS • There are 8 preset temperatures that you can select from by changing the dipswitch settings on the computer board. • The temperature has been preset at the factory to 120ºF (49ºC). • If you desire to change the set temperature with dipswitches, please refer to the diagram on below.

  • Page 34: 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 35: General Troubleshooting

    GENERAL TROUBLESHOOTING ~ TEMPERATURE and AMOUNT OF HOT WATER ~ PROBLEM POSSIBLE SOLUTIONS • The time it takes to deliver hot water from the T- It takes long time to get hot water at the fixtures. M50 to your fixtures depends on the length of piping between the two.
  • Page 36 35 seconds in order to re- ignite quickly, as well as push all exhaust gas out of the flue. Abnormal sounds come from the unit. • Contact TAKAGI. ~ REMOTE CONTROLLER: TM-RE30 (OPTIONAL) ~ PROBLEM POSSIBLE SOLUTIONS Remote controller does not display Press the ON/OFF button.
  • Page 37 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.

  • Page 38: 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 39: 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 40 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. Keep flammable products: Vapors: 1.

  • Page 41: Applications

    APPLICATIONS Space Heating Applications WARNING • Toxic chemicals used in boiler treatments such as alcohol, glycerol and glycol group must not be introduced into the system when used for open loop potable water and space heating. • The T-M50 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 42: Dual-Purpose Heating

    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...

  • Page 43: 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 44: Optional Items

    Takagi’s installation instructions, and any applicable environment from entering the unit and causing codes. damage or a fire hazard, as well as preventing rain or other weather from entering the unit.

  • Page 45: Components Diagram

    Other than the front cover (No.14), all of the T- M50 ASME’s parts are the same as the T-M50. T-M50 ASME Computer board assembly The T-M50 and the T-M50 ASME share the same components. 704 418 703 704 418 703...

  • Page 46: Burner Assembly

    Burner assembly The T-M50 and the T-M50 ASME share the same components. - 46 -...
  • Page 47 Combustion and Exhaust assembly Other than Part# 444, Part# 445, Part# 446 and Part# 447, the T-M50 and the T-M50 ASME share the same components. T-M50 ASME - 47 -...
  • Page 48 Water way assembly T-M50 T-M50 ASME - 48 -...

  • Page 49: Parts List

    Other than the front cover (No.14), burner assembly (No.444), supply pipe (No.445), O-ring P18 FKM (No.446), connection pipe (No.447), left cold pipe (No.448), left hot pipe (No.449), right hot pipe (No.450) and right cold pipe (No.451), all of the T-M50 ASME’s components are the same as the T- M50.
  • Page 50 Connecting pipe for EZM16 O-ring P16 FKM EM370 T-M50 ASME EW00H Pan Screw M4X12 (w/washer) EM456 Left cold pipe for T-M50 ASME EM252 Fan motor fixing plate EM459 Left hot pipe for T-M50 ASME EKK2D Pressure port EM458 Right hot pipe for T-M50 ASME...

  • Page 51: Output Temperature Chart

    This limited warranty gives you specific legal rights, and you may also have other rights which vary from State to State. The manufacturer, Takagi Industrial Co. USA, Inc., will honor the warranty to the original retail buyer at the original location only, THIS WARRANTY COVERS ONLY FAILED MECHANICAL AND ELECTRICAL PARTS and it is not transferable.
  • Page 52 Any Takagi product not installed in compliance with all applicable local & state codes, ordinances, and good trade practices. Any Takagi product sold to or installed in areas outside of the fifty states (and the District of Columbia) of the United States of America and Canada.

Table of Contents