On-demand water heater installation manual and owner’s guide featuring • endlesshotwater • on-demandusage • compact,spacesaving • energyconservation • computerizedsafety • nopilotlight • easy-linksystem 510 model only • complieswithnaturalgaslow noxemissionsof40ng/jor 55ppm. Gas tankless water heate...
2 page contents contents installation manual specifications .............................................4 introduction ..........................................5 safety guidelines.....................................6 safety definition ....................................6 general ...................
3 page 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...
4 page model 110 indoor 110 outdoor 310 indoor 310 outdoor 510 indoor 510 outdoor natural gas input (operating range) btu/h min.: 19,500 max.: 140,000 min.: 11,000 max.: 190,000 min.: 11,000 max.: 199,000 propane gas input (operating range) btu/h min.: 19,500 max.: 140,000 min.: 11,000 max.: 190,000...
5 page 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/front panel of the water heater. • please read all installation instructions comp...
6 page 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 and propane installation code in canada. 2. Properly ground the unit in accordance with all local codes or in th...
7 page 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. 2. All gas water heaters require careful and correct installat...
8 page installation installation manual • the warranty will not cover damage caused by water quality. • only potable water can be used with this water heater. Do not introduce pool or spa water, or any chemically treated water into the water heater. • water hardness levels must not exceed 7 grains p...
9 page top back bottom side side front clearances model top bottom front back sides 110 indoor 310 indoor 510 indoor 12 in. (305 mm) 12 in. (305 mm) 4 in.* (102 mm) 1 in. (25 mm) 3 in. (76 mm) 110 outdoor 310 outdoor 510 outdoor 36 in. (914 mm) 12 in. (305 mm) 24 in. (610 mm) 1 in. (25 mm) 3 in. (76...
10 page 2. Direct-vent conversion kit: 100112184 (tk-tv10) this kit can be used to convert the water heater from a single vent system to a direct-vent (double vent) (or sealed combustion) system with a 3 in. (76 mm) intake. Install this conversion kit in accordance with the installation instructions...
11 page warning for installations for your safety, read before installation: do not have the vent terminal pointing toward any opening into a building. Do not locate your heater in a pit or location where gas and water can accumulate. Do not install this water heater under an overhang less than 3 ft...
12 page installation installation manual note: the dark squares indicate the correct dip switch positions. 110 and 310 models altitude 0 to 2,000 ft (0 to 610 m) default 2,000 to 4,000 ft (611 to 1,219 m) 4,000 to 6,000 ft (1,220 to 1,829 m) switch no. 3 off on off switch no. 4 off off on on 8 7 6 5...
13 page installation installation manual venting instructions indoor models -general- warning • 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 i...
14 page • do not common vent or connect any vent from other appliances to the water heater vent. General rules for vent terminations: • avoid locating the water heater vent termination near any air intake devices. These fans can pick up the exhaust flue products from the water heater and return them...
15 page -combustion air supply- • the guidelines in this section apply to installations within the united states. All u.S. Installations must conform to the national fuel gas code, ansi z223.1/nfpa 54 (current edition) and local codes. • canadian requirements differ from the guidelines in this secti...
16 page 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. Notice : if you are repl...
17 page 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. Single opening (not recommended; must be at least 100 in 2 ...
18 page combustionairsupplyoptions gable vent to outdoors install above insulation outlet air to attic 1 in 2 (6.5 cm 2 ) per 4,000 btu/h inlet air from the crawl space open foundation vent confined space alternate air inlet 1 in 2 (6.5 cm 2 ) per 4,000 btu/h figure 1 - direct to outdoors openings fi...
19 page -exhaust venting- 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 350 °f (177 °c). For best results, a vent system should be as sh...
20 page -venting illustrations- 110 indoor, 310 indoor, and 510 indoor models for details of the optional items, refer to the installation manual for each optional item. Horizontalinstallationwith direct-ventconcentrictermination wall direct-vent concentric termination installationofdirect-ventconve...
21 page installation installation manual -vent termination clearances- h d e l b v v v v b f c b b b v v v v v x x a j m operable fixed closed fixed closed operable b inside corner detail g a k v x = vent terminal = air supply inlet = area where the terminal is not permitted regulator/gas meter vent...
22 page installation installation manual direct vent sidewall terminations that use two separate penetrations for the intake and exhaust: space the intake and exhaust terminations at least 3 ft (915 mm) away from each other, no matter the orientation. Anticipa ted sno w level 3ft (915 mm) min. 3ft (...
23 page installation manual installation -clearances for rooftop terminations- • exhaust terminations must be at least 1 ft (305 mm) away from any obstructions. • minimum spacing between multiple terminals: • intake terminals: 1 ft (305 mm) spacing between each • exhaust terminals: 1 ft (305 mm) spa...
24 page installation installation manual 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 all gas regulators used are operating properly and providing gas pressures within the specified range shown below...
25 page installation installation manual based on energy content of 1,000 btu/cubic ft: divide each appliance's btu/h requirement by 1,000 btu/ft 3 to get the appliance's ft 3 /h requirement. Take into account the distance the appliance is from the gas meter, then look in the above gas chart to prop...
26 page installation installation manual cold inlet hot outlet gas inlet as close as possible pressure relief valve water connections 5. There is a wire mesh filter within the cold inlet to trap debris from entering your heater. This will need to be cleaned periodically to maintain optimum flow. (re...
27 page installation installation manual outdoor models only bottom view of water heater view of electrical connections of water heater ground connect power supply 120vac, 60hz green screw indoor models only electrical connections • ensure that circuit power is turned off before you complete the fol...
28 page 6. Locate the remote controller terminals, pictured below (located around the lower right-hand side of the computer board). 7. Open the plastic cover of the remote controller, then attach the two fork terminals to the connector base on the back of the remote controller. (see below.) make sur...
29 page -easy-link connection procedures- 1. Make sure the power to the heaters are off. 2. Verify the dip switch set temperatures of all units within the system. Every single water heater must be set to the same set temperature. If a remote controller is used, it should be installed to the “parent”...
30 page 6. Between the “child-1” and the “child-2” units: connect the “2” connector of the “child-1” unit to the “1” connector of the “child-2” unit. 7. Between the “child-2” and the “child-3” units: connect the “2” connector of the “child-2” unit to the “1” connector of the “child-3” unit. 8. Verif...
31 page applications -space-heating applications- -recirculation- *the recirculation pump is to be controlled by: -dual-set aquastat (recommended w/timer) or -"pump control connections" 510 model only. (refer to p.28.) *the recirculation pump is to provide no less than 2 gpm and no more than 4 gpm t...
32 page • priority control devices such as a flow switch, an aquastat or other electronic controller can be used to prioritize the domestic water system over the heating system. • follow all local codes, or in the absence of local codes, follow the most recent edition of the national standard code, ...
33 page initial operation if you smell gas: • do not try to start the water heater. • do not touch any electric switches; 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 suppli...
34 page 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 ...
35 page operating safety owner's guide operating safety warning: ifyoudonotfollowtheseinstructionsexactly,afireorexplosionmayresult causingpropertydamage,personalinjuryorlossoflife. A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner....
36 page operating safety owner's guide a pressure relief valve listed as complying with the standard for relief valve and automatic gas shutoff devices for hot water supply system, ansi z21.22 ・ csa 4.4, shall be installed at the time of installation of the water heater in the location specified by ...
37 page temperature settings -with remote controller- normal operation owner's guide 110 and 310 models: 100112183 (tk-re02) 1. Turn on the 120 vac power supply to the water heater. 2. Press the "operation" button on the remote in order to turn the remote controller on. It shows the set temperature ...
38 page normal operation owner's guide 510 model: 100112155 (tm-re30) “buzzer” “hot” “cold” “on/off” “time” “info” 100112155 (tm-re30) 1. Turn on the 120vac power supply to the water heater. 2. Press the "on/off" button on the remote to turn the remote controller on. It shows the time and set temper...
39 page normal operation owner's guide how to change to the high temperature mode 1. Turn off power to the remote controller by pressing the “on/off” button. (lamp is off to indicate that power is off.) 2. Press and hold both the “hot” and “cold” buttons simultaneously for at least 5 seconds, then m...
40 page -features available only on 100112155 (tm-re30)- set the time> 1. Press the "time" button, then press the "hot" or "cold" button to set the clock time. 2. Press the "time" button again to save and exit. Note: if you want to hide the clock time, press and hold the "time" button for 3 seconds ...
41 page normal operation owner's guide temperature settings on the pcb -without remote controller- there are four temperatures that you can select by changing the dip switch settings on the computer board. See the table below. Location of the bank of dip switches on the computer board 110 and 310 mo...
42 page normal operation owner's guide freeze protection system • this unit comes equipped with heating blocks to protect it from damages associated with freezing. • for this freeze protection system to operate, there has to be electrical power to the unit. Damage to the heat exchanger caused by fre...
43 page unit draining and filter cleaning 1. Close the manual gas shutoff valve. 2. Turn off power to the unit and wait a couple of seconds. Turn on again. 3. Wait 30 seconds, and then turn off power to the unit, yet again. 4. Close the inlet water shutoff valve. If the heater is part of an easy-lin...
44 page troubleshooting general problem solutions tempera ture and amount of ho t w ater it takes a long time to get hot water at the fixtures. • the time it takes to deliver hot water from the water heater to your fixtures depends on the length of piping between the two. The longer the distance or ...
45 page problem solutions w ater he ater unit does not ignite when water goes through the unit. • is the flow rate over 0.5 gpm? (p. 37) • check for the filter on the cold water inlet. (p. 43) • check for reverse connection and cross connection. • if you use the remote controller, is the power butto...
46 page error codes -general- • the water heaters have self-diagnostic functions for safety and convenience when troubleshooting. • if there is a problem with the installation or the unit, the 510 model will display a numerical error code on the 7-seg led on the computer board, and the 110 and 310 m...
47 page -fault analysis of error codes- if the error code is displayed on the computer board of the water heater or remote controller, please check the following. After checking, consult with the manufacturer. Troubleshooting owner's guide 110 and 310 510 malfunction description diagnosis red led re...
48 page troubleshooting owner's guide 110 and 310 510 malfunction description diagnosis red led remote remote 7 seg led two flashes 39* 391* air-fuel ratio rod failure • check for connection/breakage of wires (part #709) and/ or soot on the afr rod (part #108). N/a n/a 441 flow sensor failure (easy-...
49 page case assembly temperature remote controller components diagram owner's guide components diagram 722 110 and 310 models 722 510 model 110 indoor 110 outdoor 052 004 001 720 704 721 052 702 003 052 052 007 002 051 050 052 004 001 704 006 053 005 066 056 052 053 702 052 007 002 050 052 004 001 ...
50 page components diagram owner's guide 101 709 111 712 110 065 108 107 106 109 105 104 059 052 053 706 121 703 053 704 705 053 053 059 103 112 113 114 708 150 102 119 151 118 052 062 055 714 053 711 712 053 120 053 067 053 701 713 058 115 061 055 401 101 709 111 burner assembly manifold assembly 1...
51 page components diagram owner's guide burner assembly 310 and 510 models a a a 105 104 106 107 108 065 110 109 401 101 709 111 712 053 052 116 053 117 103 054 121 706 703 053 704 705 053 121 706 703 053 704 705 053 701 053 053 067 120 053 712 711 053 062 714 066 062 055 052 118 151 119 102 061 70...
52 page components diagram owner's guide water way assembly bypass section computer board assembly 701 707 710 708 715 716 709 719 718 718 103 719 408 407 402 402 714 709 707 701 710 708 103 110 and 310 models 510 model water outlet section water inlet section exhaust section (outdoor model) 110 mod...
53 page parts list owner's guide parts list item # description part # 110, 310 and 510 models t-kjr2, t-k4 and t-d2 models 001 case assembly for 110 indoor for 110 outdoor for 310 and 510 indoor for 310 and 510 outdoor 100074343 100074356 100074335 100074395 ek415 ek432 ek402 ekk41 002 front cover f...
54 page item # description part # 110, 310 and 510 models t-kjr2, t-k4 and t-d2 models 110 111 rod holder for 110 model rod holder for 310 and 510 models rod cap 100074524 100074221 100074223 ex00u ekk32 ekn61 112 burner damper for 110 model burner damper for 310 indoor and 510 indoor burner damper ...
55 page parts list owner's guide item # description part # 110, 310 and 510 models t-kjr2, t-k4 and t-d2 models 450 451 452 453 454 pipe heater fixing plate heater fixing plate 16 fuse fixing plate 18 fuse fixing plate 14 o-ring p4 fkm 100074273 100074310 100074251 100074331 100076303 ekk27 ek031 ek...
56 page output temperature chart owner's guide *when the set temperature is 131 °f (55°c） or higher, maximum flow rate is limited to 8.0 gpm. Output temperature chart chart is based on properly sized gas line 62s051-10 dir 2000534765 (rev. B) 100 (38) 105 (40) 110 (43) 115 (45) 120 (50) 125 (52) 130...
