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Takagi 110c, Installation Manual And Owner'S Manual, Page: 30 / 52

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Owner's Guide

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.  When you call, please tell us the product name and 

the serial number of your unit written on the rating plate of the water 

heater.

Summary of Contents for 110c

Page 1: ...tallation and service must be performed by a qualified installer service agency or the gas supplier WARNING If the information in these instructions is not followed exactly a fire or explosion may result causing property damage personal injury or death Gas Tankless Water HeaterTM Suitable for combination potable water heating and space heating Please refer to local codes for space heating complian...

Page 2: ...CTIONS 21 TEMPERATURE REMOTE CONTROLLER 22 Optional item 22 Installation 22 EASY LINK SYSTEM 24 Easy link connection procedures 24 MULTI UNIT SYSTEM 26 APPLICATIONS 27 Space Heating Applications 27 Recirculation 27 Dual purpose hot water heating 28 INITIAL OPERATION 29 Owner s Guide OPERATING SAFETY 31 NORMAL OPERATION 33 BUILT IN CONTROLLER AND REMOTE CONTROLLER 33 GENERAL 33 TEMPERATURE SETTING ...

Page 3: ... 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 When you call please tell us the product name and the serial number of your unit written on the rating plate of the water heater ...

Page 4: ...520 x W 350 x D 266 mm Ignition Electric Ignition Electric Supply VAC Hz 120 60 Consumption Operation W A 53 0 58 71 0 81 72 0 85 Standby W A 2 0 06 2 0 06 3 0 07 Freeze Protection W A 99 0 83 99 0 83 100 0 83 SPECIFICATIONS Maximum flow may need water pressure equal to or above 40 psi NOTE Check the rating plate to ensure this product matches your specifications The manufacturer reserves the righ...

Page 5: ...t accurately represent the water heater s physical description 1 A hot water fixture is turned on 2 Water flows through the heater 3 The water flow sensor detects the water flow 4 The computer initiates the fan motor and gas valve to let gas flow through the heater and sends a signal to the igniter to create an ignition spark 5 The gas ignites and flames appear within the burner chamber 6 Water is...

Page 6: ...rn off all hot water fixtures and turn off the gas Then call a trained technician the gas company or the manufacturer WARNING Water temperatures over 125 F 52 C can cause severe burns instantly or death from scalding The water temperature is set at 120 F 50 C from the factory to minimize any scalding risk Before bathing or showering always check the water temperature Do not store or use gasoline o...

Page 7: ... 7 Carefully plan the installation location of the heater and vent terminations Contaminants such as aerosols lint and fine powders including flour can clog the air intake This could reduce the operation of the fan causing improper combustion and reduced life of the water heater Ensure that the area around the heater and vent termination is free of dust and debris Regular maintenance is recommende...

Page 8: ...an under the unit ensure that it will not restrict the combustion air flow NOTICE 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...

Page 9: ...ller 100209924 INCLUDED ACCESSORIES Installation Installation Manual Top Back Side Side Front Bottom Check that these items below are included with the water heater Installation manual and Owner s guide Communication cable 510C model only LP Conversion Kit 100281154 Qty 1 Qty 1 Manifold attachments 2 Small 1 Large Manifold gasket 100281157 1 Gas conversion sticker 1 Gas conversion instruction 1 Sp...

Page 10: ...udes One Sidewall Termination One 87 Elbow Two Wall Plates 6 Roof Flashing Flatroof Flashing 100266187 2 Concentric Sidewall Termination Kit 11 1 2 292mm 100266115 21 533 mm 100266117 38 965 mm Roof Termination 100266118 Tile Shingle Roof Flashing 1 12 to 6 12 Pitch 100266136 8 12 to 16 12 Pitch 100266137 6 12 to 12 12 Pitch 100266138 45 Elbow 100266119 87 Elbow 100266132 5 Straight Pipe 10 254 mm...

Page 11: ...SA 12 in 30 cm above grade and above anticipated snow level Canada 12 in 30 cm above grade Anticipated snow level Ensure that you meet the minimum clearances shown below for a direct vent termination Inside corner 2 ft 61 cm min Improper installation will void the warranty and may cause damage to the water heater NOTICE WARNING Do not install the water heater and its termination where water debris...

Page 12: ...r bank of DIP switches 510C model Computer board Installation Installation Manual Installation altitude The maximum certified or allowable installed altitude is 10 100 ft 3 078 m for 110C 310C and 510C models 0 to 2 000 ft 0 to 609 m DEFAULT 2 001 ft to 3 000 ft 610 m to 914 m 3 001 ft to 5 000 ft 915 m to 1 524 m 5 001 ft to 7 500 ft 1 525 m to 2 286 m 7 501 ft to 10 100 ft 2 287 m to 3 078 m 110...

Page 13: ...the water heater for normal service and inspection of the unit and vent system The water heater vent must not be connected to any other gas appliance or vent stack Avoid using an oversized vent pipe or using extremely long runs of the pipe Do not common vent or connect any vent from other appliances to the water heater vent The vent should slope towards the heater and condensate collector 10026614...

Page 14: ...tch settings Failure to observe these warnings could lead to carbon monoxide poisoning or death Vent type Diameter Max No of 87 Elbows Max Vertical and Horizontal Total Vent Length Concentric 3 in 5 in 80 mm 125 mm 4 43 ft 13 1 m For each 87 elbow added deduct 5 ft 1 5m from max vent length Two 45 elbows are equivalent to one 87 elbow No of 87 Elbows Max Vertical or Horizontal Vent Length 0 43 ft ...

Page 15: ... 100266139 100266140 StraightPipe 10 254mm 100266133 19 5 495mm 100266134 39 990mm 100266135 Elbow 87 100266132 Condensate Trap Collector 100266139 100266140 Roof termination 100266118 Tile ShingleFoofFlashing 1 12to6 12pitch 100266136 8 12to16 12pitch 100266137 6 12to12 12pitch 100266138 StraightPipe 10 254mm 100266133 19 5 495mm 100266134 39 990mm 100266135 PipeHanger 100266141 PipeHanger 100266...

Page 16: ...egulator assembly 3 ft 91 cm I Clearance to service regulator vent outlet Above a regulator within 3 ft 91 cm horizontally of the verti cal center line of the regulator vent outlet to a maximum verti cal distance of 15 ft 4 5 m J Clearance to non mechanical air supply inlet to build ing or the combustion air inlet to any other appliance 3 ft 91 cm 1 ft 30 cm K Clearance to mechanical air supply in...

Page 17: ...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 guidelines WARNING Canadian requirements differ from the guidelines in this section In Canada follow the requirements of B149 1 Natural Gas and Propane Installation Code current edition as well as local and provincial codes Contact y...

Page 18: ...imum a field supplied regulator is required The regulator must lower the gas pressure within the approved range Install the gas regulator according to the manufacturer s instructions The regulator must be sized for the water heater input and provide the specified pressures that are listed on the rating plate In the absence of minimum install distance it is recommended that there is at least 3 ft 1...

Page 19: ... Manual Pipe Size Length ft m Diameter in 10 3 0 20 6 1 30 9 1 40 12 2 50 15 2 60 18 3 70 21 3 80 24 4 90 27 4 100 30 5 125 38 1 150 45 7 200 61 0 1 2 172 118 95 81 72 65 60 56 52 50 44 40 34 3 4 360 247 199 170 151 137 126 117 110 104 92 83 71 1 678 466 374 320 284 257 237 220 207 195 173 157 134 1 1 4 1 309 957 768 657 583 528 486 452 424 400 355 322 275 1 1 2 2 090 1 430 1 150 985 873 791 728 6...

Page 20: ...manually check that it will discharge in a safe place If water does not flow freely from the end of the discharge pipe turn the gas supply and power OFF and call a qualified person to determine the cause Refer to the pressure relief valve manufacturer s instructions for inspection and maintenance requirements Installation Installation Manual WATER CONNECTIONS 5 There is a wire mesh filter within t...

Page 21: ...r free reconnection Wiring errors can cause improper and dangerous operation Verify proper operation after servicing Failure to observe these warnings could result in personal injury or loss of life WARNING All concentric vent models come with a power plug 1 The water heater requires 120 VAC 60 Hz electrical power supply that is properly grounded A proper disconnect i e on off switch power plug et...

Page 22: ...vironments high humidity conditions outdoors in direct sunlight or within the reach of children Make sure the remote controller does not come into contact with water or oil WARNING Do not place the remote controller cable close to other wires from other products Cables used for the remote controller connection must be Minimum 20 gauge wire No polarity Maximum 400 ft 122 m long NOTICE Mounting and ...

Page 23: ...2 Take off the water heater s front cover 3 Locate the two terminals for the remote controller in the water heater Refer to the Fig E 1 and E 2 4 Put the remote controller cable through the hole at the bottom of the casing of water heater from outside 5 Secure both terminals on the controller cable to the terminals in the cabinet as shown below Secure them underneath the screw terminals No polarit...

Page 24: ...24 TM RE42 is used it should be installed to the PARENT unit The remote will set the temperature for the entire system 3 Select one unit to be the PARENT unit The PARENT unit should be one of the end units 4 PARENT unit Locate the two banks of DIP switches at the bottom left of the computer board of the unit that you select to be the PARENT unit Change DIP switch No 1 on the lower bank of DIP swit...

Page 25: ... changing the DIP switch settings Failure to observe this warning could result in carbon monoxide poison ing or death Easy Link Multi Unit connectors are next to the computer board Upper bank of DIP switches Lower bank of DIP switches B Diagram of connections between the Easy Link System units Type of unit Unit of easy link Parent 1 Child 2 3 or 4 NOTE The black squares indicate the correct DIP sw...

Page 26: ...mmercial or residential applications For a 20 unit system the computer can modulate between the usages of 15 000 BTU h to 3 98 million BTU h 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 and temperature remote controller wiring OFF ON 1 1 1 2 2 2 PARENT PARENT PARENT 1 2 3 4...

Page 27: ...ements must be followed Toxic chemicals used in boiler treatments such as alcohol glycerol and glycol groups must not be introduced into the system The water heater 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 When the system...

Page 28: ... to location approved by local codes and must meet BTU rating of water heater model used Check valve will have 1 8 inch hole drilling in clapper optional Atmospheric vacuum breaker Shutoff valve Pressure gauge Apply correct thermal expansion tank size per application Shutoff valves Shutoff valves Check valves Cold water inlet Gas inlet Water filter Drain plug Thermostatic mixing valve Hot water su...

Page 29: ...ore 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 If the knob will not turn by hand do not try to force it call a qualified service technician Forced or attempted repair may result in a fire or explosion due to gas leaks Be sure to check for the presence of leaking gas toward the bottom of the unit because some gas...

Page 30: ...efore 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 When you call please tell us the product name and the serial number of your unit written on the rating plate of the water heater ...

Page 31: ...empted 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 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 h...

Page 32: ...125 F 52 C can cause severe burns instantly or death from scalds 2 Children disabled and elderly are at highest risk of being scalded 3 Feel water before bathing or showering 4 Temperature limiting valves are available See manual 5 The outlet temperature of the water heater is set at 120 F 50 C If you require water temperatures below this setting follow the instruction manual 6 Use this heater at ...

Page 33: ...e remote controller is installed it will take priority over the built in controller The controller has an energy saving mode Five minutes after the water heater stops operating the backlight of the controller turns off The backlight of the remote will turn back on once the water heater begins firing again NOTICE GENERAL 1 Open a cold water fixture 2 Mix hot water with the cold water to get the cor...

Page 34: ... temperature on its display as shown in the picture on the right EX 120 F 5 Press the HOT button or the COLD button to set the temperature setting of the unit Increasing temperature from 120 F 50 C to 125 F 52 C 1 The water heater must be in Stand By to increase the temperature 2 Press the HOT button to set 120 F 50 C 3 Press and hold the INFO button and the HOT button for at least 3 seconds The r...

Page 35: ...n to finish information mode Inlet water temperature Outlet water temperature Water flow Normal Operation Owner s Guide Unit conversion mode Units of measure can be changed from Imperial to Metric and vice versa For example temperature can be changed from F to C Flow rate will also change from gallons per minute to liters per minute when this setting is changed Follow this procedure to change this...

Page 36: ...50 C DEFAULT 140 F 60 C No 9 OFF No 9 ON 110C and 310C models OFF ON 1 2 3 4 5 6 7 8 9 10 OFF ON 1 2 3 4 5 6 7 8 9 10 Lower bank of DIP switches Computer board Upper bank of DIP switches Lower bank of DIP switches 120 F 50 C DEFAULT 140 F 60 C No 5 OFF No 5 ON 510C model OFF ON 1 2 3 4 5 6 OFF ON 1 2 3 4 5 6 2 3 4 5 6 Normal Operation Owner s Guide Appliance Use Flow rate GPM US L min Lavatory Fau...

Page 37: ...ly protect and insulate these pipes from freezing NOTICE MAINTENANCE AND SERVICE Turn off the electrical power supply and close the manual gas shutoff valve and the manual water control valve before servicing Failure to do so could result in serious personal injury or death WARNING Clean the cold water inlet filter Refer to Unit draining and filter cleaning section on p 38 Be sure that all opening...

Page 38: ...upply line 2 Remove the screw from the pressure port which is located on the gas inlet of the water heater shown in the diagram on the right 3 Connect the manometer to the pressure port and zero the manometer 4 Re open the manual gas valve Verify that there are no gas leaks 5 With all gas burning equipment off take a reading of the static gas pressure and make a note of it 6 Measure gas supply pre...

Page 39: ...rature set too high p 34 and 36 The hot water is not available when a fixture is opened Make sure the unit has 120 VAC 60 Hz power supply Is the power button turned on Is the gas supply valve open fully p 29 Is the water supply valve open fully p 29 Is the filter on the cold water inlet clean p 38 Is the hot water fixture sufficiently open to draw at least 0 5 GPM 1 9 L min through the water heate...

Page 40: ... not display anything when the power button is turned on Make sure the unit is supplied with power For the remote controller Make sure the connection to the unit is correct p 22 and 23 When the controller is turned ON STAND BY LED is lit Buit in controller When the unit has not operated for five minutes or more the display turns off to conserve energy Although the controller of the parent unit wil...

Page 41: ...510C model only Error codes will be displayed differently with units installed within an Easy Link System not only to show what the error code is but to also indicate which unit within the system has the error code Below is a sample of how the error code of 321 is displayed in an Easy Link System Example If Unit 2 has the 321 error code inlet thermistor failure Indicator on the built in controller...

Page 42: ...ng from the gas valve assembly Part 102 when the water heater goes into combustion Check if there is leaking from heat exchanger Part 401 121 Three Flashes Loss of flame Check if the Hi limit switch Part 412 is functioning properly Check for connection breakage of wires Part 413 708 709 burn marks on the computer board Part 701 and or soot on the flame rod Part 108 Check if there is leaking from h...

Page 43: ...e of the remote controller Inspect the connections between the water heater and remote controller Check the power supply of the water heater 751 N A Miscommunication betweenwater heaterand built in controller Inspect the connections between the water heater and built in controller Check the power supply of the water heater 761 N A Miscommunication in Easy Link system Check if the connections betwe...

Page 44: ...44 Page COMPONENTS DIAGRAM Components Diagram Owner s Guide Case assembly 001 002 003 003 463 004 005 704 710 053 052 052 051 051 053 053 Built intemperaturecontroller 722 721 056 ...

Page 45: ...C models 701 705 103 402 402 707 713 403 714 709 708 711 705 103 709 402 402 711 707 714 407 408 708 701 061 713 712 712 721 721 Computer board assembly Surge box assembly Components Diagram Owner s Guide 121 705 063 706 703 704 705 ...

Page 46: ...er assembly 510C model 101 119 120 106 107 109 108 709 111 711 112 110 053 711 113 114 102 118 117 708 151 052 714 057 707 702 055 150 401 004 105 104 103 115 116 053 122 054 063 065 065 062 063 064 LP Conversion Kit 130 131 Gas conversion sticker ...

Page 47: ...t section 402 404 407 406 405 460 456 458 461 052 415 059 454 457 052 D To Water inlet section D To Water outlet section C A B 418 414 414 451 451 416 460 456 453 453 462 417 458 411 450 459 454 414 412 058 053 053 401 413 452 458 B A 458 462 403 456 460 060 461 110C 310C model To Water inlet section D To Water outlet section C 418 414 451 414 451 458 462 401 ...

Page 48: ...xing chamber assembly Manifold with gas valve assembly NA 100224092 100224093 EK554 EK555 103 104 105 Fan motor assembly Fan motor gasket Fan motor plate 100224094 100224095 100224096 EK556 EK557 EK558 106 107 Burner window Rod holder gasket 100076535 100224097 EKN58 EK559 108 109 110 111 Flame rod with AFR function Igniter rod Rod holder Rod cap 100224098 100224099 100224100 100076319 EK560 EK561...

Page 49: ...78 EK031 EK476 EK579 454 455 456 457 O ring P4 FKM O ring P6 FKM O ring P14 FKM O ring P15 FKM 100076303 100076305 100076306 100076307 EZF04 EZF06 EZF14 EZF15 458 459 460 461 O ring P16 FKM Fastener 4 11 for 510C model Fastener 14 22 Fastener 16A 100076308 100074282 100074290 100074410 EZF16 EKH30 EKK24 EM192 462 463 Fastener 16 25A Silicon ring 100074389 N A EKK39 EK580 701 Computer board for 110...

Page 50: ...20 50 125 52 130 55 135 57 140 60 40 F 4 C 50 F 10 C 60 F 16 C 70 F 21 C 0 0 2 0 4 0 6 0 8 0 10 0 40 F 4 C 50 F 10 C 60 F 16 C 70 F 21 C 5 2 19 7 6 2 23 5 7 8 29 5 8 0 30 3 4 8 18 2 5 7 21 6 6 9 26 1 8 0 30 3 4 4 16 7 5 2 19 7 6 2 23 5 7 8 29 5 4 1 15 5 4 8 18 2 5 7 21 6 6 9 26 1 3 9 14 8 4 4 16 7 5 2 19 7 6 2 23 5 3 7 14 0 4 1 15 5 4 8 18 2 5 7 21 6 3 5 13 3 3 9 14 8 4 4 16 7 5 2 19 7 3 3 12 5 3 ...

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