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Takagi Mobius T-M1, Installation And Operating Instructions Manual

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Takagi Mobius T-M1 Installation And Operating Instructions Manual Download Page 22

 

 

T-M1 with Storage Tank             

 
                                   Hot Out                                               Cold In 
     

             

 

 

                  

 

 
 Relief 

Valve 

 

 

 

 

 

 

                          

      

 

 

 
 
 

 

 

                                                                        Check valve 

 

 

 

 

                       

Hot Water 
Recirculation 
 
 
                    Recirc. Pump 

 

 

 

 

Pump 

 

 

             

The maximum flow rate through the T-M1 is 9.6 GPM.  If it is necessary to achieve higher flow 

rates for longer periods of time, then it can be installed in conjunction with a storage tank.  A pump will 
be necessary to keep the water hot.  We suggest a pump of 1/12 hp or greater depending on the 
system.  

 

Recirculation 

 

                                     
 
 
   

 

 

Pressure Relief Valve 

 

 

Hot Water to House 

        

                                                

Cold inlet-------  

 
 
 

Hot Water Return 

 
 

 

 

 

Pump (with/without Timer) 

                         Check Valves 

 

This system will also need a pump of 1/12 hp or greater, depending on the application situation. For 

more details, contact Technical department at (888) 882-5244 

 

Summary of Contents for Mobius T-M1

Page 1: ...453 8498 http www takagi usa com Installation and Operating Instructions MOBIUS WATER HEATER MODEL T M1 Instantaneous Tankless Gas Water Heater Suitable for Potable water heating and Space heating Indoor and Outdoor installation FEATURES θ ENDLESS HOT WATER SUPPLY θ ON DEMAND θ PILOT LESS SYSTEM θ COMPACT SAVE SPACE θ COMPUTER CONTROL θ COMPUTERIZED SAFTY θ CONSERVES ENERGY θ FULL CAPABILITY FOR M...

Page 2: ...th Do not store or use gasoline or other flammables vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not try light any appliance Do not touch any electrical switch also 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 ...

Page 3: ...SPECIFICATIONS Natural Gas Input Min 25 000 Btu Max 235 000 Btu LPG Input Min 25 000 Btu Max 225 000 Btu Gas Connection NPT Water Connection NPT Water Pressure Min 15 psi Max 150 psi Natural Gas Pressure Inlet Min 5 WC Max 10 5 WC LP Gas Pressure Inlet Min 11 WC Max 14 WC Manifold Pressure Natural 2 2 WC Propane 2 7 WC Weight 70 lbs Dimensions 24 5 x16 5 x8 3 Ignition Electronic Ignition Electrica...

Page 4: ...r the correct gas type gas pressure water pressure and electrical rating If this unit does not match your requirements do not install 5 If any problem should occur turn off all hot water taps and turn off the gas Then call a trained technician or Gas Company or manufacturer 6 WARNING Do not disconnect the electrical supply if the ambient temperatures will be reaching freezing The Freeze Prevention...

Page 5: ...ust the water temperature Now as long as you have water gas and electricity you will get an endless flow of hot water Open a hot water tap to turn on your water heater Close the tap to turn off your water heater Temperature The temperature has been set at the factory Max of 140º F 60º C The computer will electronically control this temperature Mix the cold water with hot to get the water temperatu...

Page 6: ...ch environment For this purpose a back flow prevention kit Part TK TV03 is highly recommended for areas with freezing weather to prevent freezing air from entering through the exhaust venting when the water heater is on standby which can damage the heat exchanger CAUTION The pipe heaters are located on the MOBIUS Water Heater only Any hot or cold water pipes located outside of the unit will not be...

Page 7: ...eration This manual must be followed exactly Read the For Your Safety section in the beginning of this manual 1 The regulator is preset at the factory this 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 3 The electrical connection requires a means for switching off the power supply 4 Avoid i...

Page 8: ...instructions and any applicable local codes 3 TK TV03 Vent Damper The TK TV03 Vent Damper prevents the backflow of air through the exhaust vent This is CSA approved part of the unit This helps prevent harmful exhaust gases from entering the home as well as helping to prevent the units from freezing in areas where cold air can be blown into the exhaust system Install vent damper according to manufa...

Page 9: ... feet of any air intake opening into a building WARNING Improper installation can cause nausea or asphyxiation from carbon monoxide and flue gases which could result in severe injury or death Improper installation will void product warranty For high altitude installation above 4 500 feet Contact the manufacturer on how to handle this situation INDOOR INSTALLATION Combustion Air Supply The water he...

Page 10: ...venting of this appliance can result in excessive levels of Carbon Monoxide which can result in severe personal injury or death This water heater must be vented in accordance with Section Venting of Equipment of the latest edition of the National Fuel Gas Code ANSI Z223 1 and all applicable local building codes In Canada follow CAN CGA installation codes general rules for venting the MOBIUS water ...

Page 11: ... 35 ft For each elbow added deduct 5 ft from max Vent length No of Elbows Max Vertical or Horizontal Length 0 35 ft 1 30 ft 2 25 ft 3 20 ft When the horizontal vent run exceeds 5 ft the following criteria must be observed Attach a vertical pipe at least 2 high to the water heater outlet before the horizontal run Support the vent run at 3 ft intervals with overhead hanger Pitch up the vent run towa...

Page 12: ...ould be caused by an undersized gas pipe this will cause the MOBIUS water heater s performance to diminish and unable to reach maximum performance When connections are completed check for gas leaks by applying soapy water to all gas fittings and connections Soap bubbles are a sign of gas leaks This appliance and its individual shut off valve must be isolated from the gas supply piping system by un...

Page 13: ...e Length 10 20 30 40 50 60 70 80 90 100 125 150 200 275 189 152 129 114 103 96 89 83 78 69 63 55 567 393 315 267 237 217 196 185 173 162 146 132 112 1 1071 732 590 504 448 409 378 346 322 307 275 252 213 1 2205 1496 1212 1039 913 834 771 724 677 630 567 511 440 1 3307 2299 1858 1559 1417 1275 1181 1086 1023 976 866 787 675 2 6221 4331 3465 2992 2646 2394 2205 2047 1921 1811 1606 1496 1260 Water Co...

Page 14: ...nce discharges periodically this may be due to the thermal expansion in a closed water supply system or defective pressure relief valve replace a new pressure relief valve Contact the water supplier or local plumbing inspector on how to correct this situation The pressure relief valve must be manually operated once a year to check for correct operation Should overheating occur or gas supply fail t...

Page 15: ... electric switch do not use any phone in your building 3 Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions 4 If you cannot reach your gas supplier call the fire department Operating Instructions The MOBIUS Water Heater is an instantaneous tankless water heater designed to supply your entire household and or commercial hot water needs utilizing total ...

Page 16: ...erature increasing the flow output rate Start Up Once you have properly installed the unit check the gas and water connections for leaks Check for proper ventilation and combustible air to the heater Purge the gas and water lines to remove Air pocket Then follow these steps to turn on your unit 1 Close the manual gas control valve located on the gas line 2 Fully open the manual water control valve...

Page 17: ...t panel of the appliance Electrical Rating 120 VAC 60 Hz 0 8 A 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 Wires are available through the manufacturer ...

Page 18: ...qualified service technician to inspect the water heater and to replace any damaged parts WARNING If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life OPERATING INSTRUCTIONS 1 STOP Read the safety information above on this label and Owners Manual 2 Turn off all electric power to the water heater 3 Do not attempt to l...

Page 19: ... products 1 Far away from heater 2 In approved containers 3 Tightly closed 4 Out of children s reach Vapors 1 Cannot be seen 2 Vapors are heavier than air 3 Travels a long way on the floor 4 Can be carried from other rooms to the main burner by air current WARNING Do not install water heater where flammable products will be stored Read and follow water heater warnings and instructions If owner s m...

Page 20: ...red for other used a means such as a mixing valve shall be installed to temper the water for those uses in order to reduce scald hazard potential Water temperature over 125 F can cause severe burns instantly or death from scalds Chemicals such as diluted Glycol can be used for radiant floor Hydro warm air or Baseboard heating only Basic system drawings and Schematics Heating application only Warni...

Page 21: ...tion of the National Standard Code ANSI Z21 10 3 Warning This illustration is for concept only There are a wide variety of variations to the application of controls and equipment presented applications Designers must add all necessary safety and auxiliary equipment to conform to code requirements and design practice For more details contact Technical Department at 888 882 5244 Pressure Relief Valv...

Page 22: ...can be installed in conjunction with a storage tank A pump will be necessary to keep the water hot We suggest a pump of 1 12 hp or greater depending on the system Recirculation Pressure Relief Valve Hot Water to House Cold inlet Hot Water Return Pump with without Timer Check Valves This system will also need a pump of 1 12 hp or greater depending on the application situation For more details conta...

Page 23: ...ater has full capability of manifolding multi systems with Multi System Computer Control Optional Part TM RE20 This Multi System Computer Controller you can manifold from 2 units to 20 units for commercial and residential application with each computer controller One computer Part TM RE20 system can make from 26 000 BTU to 4 7 Million BTU system with fully automatic modulation for large applicatio...

Page 24: ...2 201 202 201 202 201 202 Detail Wiring T M1 Comunications cables are inside Box for TM RE20 TM RE10 Cable can be use above 18 gage wire and up to 250 ft Wire No 201 Male Adapter and No 202 Female Adapter For TM RE10 Port Use 18 Gage Wire No Polarity It has four Ports Each port can connect up to Five T M1 No Polarity ...

Page 25: ...emperature Final Check of the Multi System From MOBIUS Water Heater Model T M1 Computer Board it has a jump cable for Single mode or Multi mode To switch to Multi mode this jump cable has to be removed from the T M1 computer board permanently but please keep this jump connector safety stored for future maintenance this jumper is located behind the do not remove label Pull out jump cable for Store ...

Page 26: ...d with the TM RE10 After setting of the TIME press the ON OFF button RE 10 will show current Temperature setting LP or Natural Gas Please don t change these switch Factory already set it correctly When unit is firing this RED LED will be ON For Single or Multi mode JUMP cable For Multi mode permanently pull out Error signal LED this LED shows for unit error also it will show on RE 10 and RE20 Erro...

Page 27: ...possible output temperature and flow capabilities See flow chart on the last page of this manual If the water doesn t seem hot enough compare the flow and temperature that is being attained to the T M1 flow vs temperature chart If the unit is not performing according to the chart first check that the gas supply line is sized properly and that the gas pressure is within the required range If the ga...

Page 28: ... an error code MOBIUS Water Heater Model T M1 has a built in self diagnostic computer programmed for safety and convenience for trouble shooting and maintenance service AT the T M1 Computer Board a numeric display will notify of any error displaying a numeric code when the MOBIUS water heater has or encounters a problem This numeric code will give symptoms for trouble shooting service and maintena...

Page 29: ...ec Open Valve A Open Valve B Open Valve C Display Display Priority Control Valve B Open Valve B Open Valve A 611 13 4 Valve A failure High limit switch off Open Short Inlet Temp Thermistor Open Short Output Temp Thermistor Open Short Mixing Temp Thermistor Circuit board failure Mismatched gas Flame failure Valve C failure Abnormal fan rotation Ignite failure Lost flame Valve C failure Valve B fail...

Page 30: ...ing Igniter Off Proportional control Check output temp 203F Check power Less normal Open Valve B improperly 2 minutes Fan Off Re ignite 2 times Valve H Off Valve D Off Valve G Off Igniter Off Valve H Off Valve D Off Valve G Off Valve E Off Valve F Off Display Running Off YES YES Pass 5 sec Valve A Close limit On Faucet close NO NO After 35 sec NO After 18 sec Valve H Off Valve E Off Valve F Off Fl...

Page 31: ... Safety function Capacity Check Max BTU Flow sensor 8 45GPM Valve C control Valve C Close Capacity Check Max BTU Flow sensor 8 45GPM Valve C control Check power Mid BTU Valve E On Valve F Off Valve E On Valve F On Thermocouple 1mV Thermocouple 10mV Thermocouple 1mV Thermocouple 10mV Fan speed up 15 Display 101 Max burning power 12 Thermocouple 12mV Fan speed up 3 13 Abnormal fan rotation 1000rpm w...

Page 32: ...iled 510 Abnormal Main Gas Valve 721 Computer Pre post Check Problem 121 Loss Flame 541 Abnormal Two Way Valve 741 Main remote control Trouble 141 Hi Limit Switch Trip 611 Abnormal Fan Motor 751 Temperature Remote control Trouble 311 Output Thermistor Fail 651 Abnormal Bypass Valve 761 Multi system Controller 321 Inlet Thermistor Fail 661 Abnormal Output Adjust Valve 991 Abnormal Burning 211 Vent ...

Page 33: ...4 42 94 31 40 39 31 43 41 37 38 26 60 30 29 28 32 33 34 35 36 20 27 52 40 34 58 18 51 53 54 55 57 56 56 61 40 62 63 65 66 48 64 40 60 59 34 26 23 25 24 18 22 21 20 19 18 17 16 15 14 MOBIUS Water Heater Parts List and Component Diagram ...

Page 34: ...128 127 126 123 9 125 124 122 119 120 117 121 118 115 116 115 114 111 18 112 113 ...

Page 35: ...68 67 18 69 70 71 70 84 83 72 73 74 70 75 76 75 81 70 9 82 77 74 70 80 79 89 78 91 40 43 87 9 86 88 90 101 3 102 103 107 108 109 3 105 1 0 4 110 94 97 93 96 94 92 95 98 99 100 ...

Page 36: ...1 2 3 4 5 6 2 3 7 8 9 10 11 12 13 3 ...

Page 37: ...Switch 80 Thermocouple Fixing Plate 17 Screw M3 x 6 81 Overheat Cut Off Fuse 18 Screw M4 x 10 coated 82 Damper 19 Outlet Thermistor 83 Washer 20 O ring P4 84 Pressure Switch Port 21 Heater Block 604 85 Silicon Tube 22 Heat Exchanger Fixing Plate Back 86 Pressure Switch 23 Heat Exchanger Fixing Plate Front 87 Fan Motor 24 Over Heat Cut Off Fuse Fixing Plate 88 Screw M4 x 12 Hex 25 Over Heat Cut Off...

Page 38: ... Band 112 Computer Board Sticker 49 Water Outlet 113 Mode Port 50 Screw W M4 x 12 114 Control Box 51 Bypass Flow Adjustment Valve 115 Screw M3 x 25 52 Bypass Valve 116 Wire Holder 53 Silicon O ring M22 117 Terminal Holder 54 Bypass Connection 118 Surge Absorber A 55 O ring JASO3 1017 119 Surge Absorber B 56 Clamp 120 Screw M4 x 16 57 Heater Fixing Plate 121 Terminal 58 Screw M4 x 6 122 Power Distr...

Page 39: ...ature Out Put Hot Water GPM 40 F 50 F 60 F 70 F 40 F 7 7 7 0 6 4 5 9 5 5 5 1 4 8 4 5 4 3 4 0 3 8 3 5 3 2 3 1 3 0 2 8 2 7 50 F 9 6 8 5 7 7 7 0 6 4 5 9 5 5 5 1 4 8 4 5 4 3 3 8 3 5 3 3 3 2 3 1 3 0 60 F 9 6 8 5 7 7 7 0 6 4 5 9 5 5 5 1 4 8 4 3 3 8 3 7 3 5 3 3 3 2 70 F 9 6 8 5 7 7 7 0 6 4 5 9 5 5 4 8 4 3 4 0 3 8 3 7 3 5 90 95 100 105 110 115 120 125 130 135 140 150 160 165 170 175 180 ...

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