Bradford-White CorpメーカーTG-237E-N(X)Aの使用説明書/サービス説明書
ページ先へ移動 of 72
238-48025-00D 07/11 Bradford White EverHot Tankless Gas Water Heater For Exterior Installation TG-150E-N(X), TG-180E-N(X ), TG-199E-N(X), TG237E -N(X) & TG-237E-N(X)A INSTALLATION AND OPERATIO.
2 SECTION I: IMPORTANT INFORMATION TABLE OF CONTENTS I IMPORTANT INFORMATION ......... 2 V II OPERATING INSTRUCTIONS ....... 40 II SPECIFICATIONS .......................... 6 TEMPERATURE ADJUSTMENT ................................ 42 III INSTALLATION INSTRUCTIONS .
3 DO NOT store or use gasoline or other flamm able, combustibl e, or corrosive vapors and/or liquids in the vicinity of this or any other appliance. This water heater is for outdoor installati on only. Do not install indoors. This water heater is eq uipped with an adjustable t hermostat to control water tempe rature.
4 DO NOT tamper with or alter the water h eater and/or controls. DO NOT operate water heater with jum pered or absent controls or safety devices. DO NOT operate water heater if any external part ha s been under water.
5 Liquefied petroleum ga ses/propane ga s is heavier than air and will remain at floor level if there is a leak. Basements, crawl spaces, cl osets and areas below gr ound level will serve as pockets for accumulation of leakin g gas. Before lighting, smell all around the appliance area for gas.
6 SECTION II: SPECIFICATIONS Table 1. Specifications . * Minimum flow may vary slightly depending o n the temperature setting and the inlet water temperature. ** For commercial and hydr onic applications requ iring higher temperatures. Requires the use of an optional controller (P/N 239-47805-00).
7 Dimensions Table 2. Water Heater Dimensions. DIM DESCRIPTION TG-150E-N(X) TG-180E-N(X) TG-199E-N(X) In. (mm) TG-237E-N(X) TG-237E-N(X)A in. (mm) A Width 14 (355.6) 18 1/2 (470) B Depth 9 7/8 (249.5) 9 3/8 (230.5) C Height - Unit 22 7/8 (582) 23 5/8 (600) D Height - w ith brackets 25 3/8 (646.
8 Figure 1. Graph Showing Pressure Drop v. Water Flow Rate. Figure 2. Graph Showing Water Flow Rate v. Temperature Rise. TG-237E-N(X) TG-237E-N(X)A TG-237E-N(X) & TG-237E- N(X)A TG-199E-N(X) TG-18.
9 SECTION III: INSTALLATION INSTRUCTIONS CAUTION If building cold water suppl y has a back-flow prevente r, check valve or wat er meter with check va lve, provisions for thermal expansion of water in the hot water system must be p rovided.
10 WARNING UNPACKING INSPECT SHIPMENT carefully for any signs of damag e. 1. All equipment is carefully manufactured, inspected and packed. 2. Any claims for damage or shorta ge in shipment must be file d immediately with Bradford White Corporation and noted on the Bill of Lading.
11 REMOVE CARTON Move water heater to a location near where it will be i n stalled. Carefully slide water heater out from the carton and remove all the contents. MOUNT WATER HEATE R ON T HE W ALL This water heater must be in stalled outdoors. Refe r to Table 3 clearan ces under overhangs, windows, doors, etc.
12 State Regulations NOTICE BEFORE INSTAL LATIO N Bradford White direct-vent applia nce mu st be installed by a state qualifi ed or licen sed contractor. If you are not properly trained, you must not install this unit. IMPORTANT: In the State of Massachuse tts (248CMR 4.
13 WARNING For all closet installations, follow the minimum clea ra nces to combustibles whether the closet door i s combustible or non-combustible. FIXED CLOSED OPERABLE FIXED CLOSED OPERABLE B B B A J B I M C F B B E D L G A H K VENT TERMINAL AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED Figure 3.
14 Table 4. Installation Clearan ces. Ref Description Canadian Installations US Installations A Clearance above grade, veran da, porch, deck, or balcony 12 inches (30 cm) 12 inches (30 cm) B Clearance.
15 Local codes supersede the se clearances. Avoid termination locations near a dryer vent. Avoid termination locations near comm ercial cooking exhausts. 2" 36" 12" INSIDE CORNER * (0.30 m) to an inside (50 mm) between termi nals at same level (0.
16 High Altitude Installations The default setting for the water is 0-2,000 ft (0-61 0 m) with dip switch numbers 2 and 3 in the OFF position. If this water heater is i nstalled at a highe r altitude, it is necessary to modify the dip swit ch settings according to Table 5.
17 SECTION IV: WATER CONNECTIONS WARNING Failure to install and maintain a new, listed pressu re relief valve will release the manufacturer from any claim, which might result from excessive temperature and pressures. Keep clear of the pressure relief valve di scharge line outlet.
18 potable water. Unions should be installed on both the hot and cold water lines for future servicing and disconnection of the water heater. Install a shut -off valve in the cold water sup ply line.
19 Figure 5. Scald Warning . Table 7. Approximate scald time/temperatures. APPROXIMATE TIME/TEMP ER ATURE RELATIONSHIPS IN SCALDS 120°F (49 C) More than 5 minutes 125°F (52 C) 1½ to 2 minut.
20 Figure 6. Recommended Piping for a Basic Installation..
21 Figure 7. Recommended Piping for a Circulation Systems ..
22 Recommended Piping for Po wer Failure Freeze Protection As long as electrical power a nd gas are supplied to the EverHot water h eater, freeze protection is provided to the heat exchanger and pipi ng inside the wate r heater with ambient temperatures as cold as -30 F (-34 C), when protected from direct wi nd exposure.
23 PRESSURE RELIEF VALVE Keep clear of the pressure reli ef valve di scharge line outlet. The discharge may be hot enough to cause scald injury. The water is unde r pressure and may splash.
24 Combination Water and Space Heating Applications – Commercial Use Water Heaters Only Commercial use water h eaters may be used for space heating or combination space heating/potable water heating applications, provided the followin g requirements and recommended piping di agrams are carefully followed.
25 Note: in Massachusetts, the following must be done: Tempered potable water must meet temperatures in 248 CMR. All water piping must be insulat ed in accordance with 780 CMR (Massachusetts energy code ).
26 SECTION V: GAS CONNECTIONS WARNING Connect this water heater only to the ty pe of gas as shown on the rating plate. Use clea n black iron pipe or equivalent material approved by local codes and ordinances. Dirt and scale from th e pipe can enter the gas valve a nd cause it to malfunctio n.
27 Check the type of ga s and the gas inl et pressure before connecting the EverHot ® water heater to the gas supply. If the gas su pply type does not match the type shown on the water heater rating pl ate, then DO NOT connect the water he ater. Contact your Bradford White supplier for the correct water heater.
28 INITIAL OPERATION AN D TESTING (INSTALLER ONLY) 1. Open the gas and water supply valves to the water heater. 2. Check for water and gas leaks. Use soap solutio n to check for gas leaks.
29 SECTION VI: ELECTRICAL CONNECTIONS WARNING Turn off or disconnect the electrical power supply to the water heater before servicing. Label all wires prior to disconn ection when servicing controls. Wiring erro rs can cause improper and dangerous operation.
30 WARNING DO NOT adjust any dipswitch settings on PC board u nless instructed to do so. RELA Y 1 IG FROST SENSING SWITC H ANTI- FRO ST HEA TER IG NI TIO N COMB U STION FA N 3 A(FUSE) HO T NEUTRAL VARI S TOR DC1 2.
31 Figure 11. Wiring Diagram for TG-150E-N(X), TG-180E-N(X), and TG-199E-N(X) Models..
32 Figure 12. Wiring Diagram for TG-237E-N(X) and TG-237E-N(X)A Models..
33 TEMPERATURE CONTROLS The included temperature control a llows the end user to set the hot water supply temperature and will display certain diagnostic cod es of the water heater if there is a malfunction.
34 WARNING Do not adjust this water h eater in any residential application above 120ºF. If this water heater is used in a commercial application where temperatures in excess of 120ºF are required, use an ASSE approved mixing device. WARNING This water heater is equipped with an energy cut out device to prevent overheating.
35 °F Set Temperature In Use Priority e n d l e s s h o t w a t e r s y s t e m CAUTION: Hotter w ater inc reases the ri sk of scald injury. Before changing temperature setting, see instruction manual. C O R P O R A T I O N R P o B P r i r i t y u t t o n Temperature Display In Use Indicator Priority Button Priority Indicator Thermostat Figure 13.
36 8. Remove the plastic cover from the PCB and electrical conn ections. 9. Thread the cable th rough the access hole at th e base of the wat er heater and connect the wires to the control terminals on the right hand side of the PCB. 10. Secure the control cable using the cl amp provide d in the control compartment.
37 Troubleshooting – Electrical There are a number of (live) tests that are required when fault finding this product. Extre me care should be used at all times to avoid contact with energiz ed components inside the water heater. Only trained and qualified service tech nicians should attempt to repair this pr oduct.
38 Table 17. Thermal Fuse / Overheat S witch. Wire Color Voltage Resistance Connector No. Pin Nos. Red-Red 11-13 VDC Below 1 ohm s F6 H1 F6- H12 Flame Rod: Place one lead of your meter to the flam e rod and the other to ground. With the unit running, you should read between 5-150 VAC.
39 Frost Protection: This unit has frost protection he aters mounted at diffe rent points to protect the water the water heater from freezing. The heate rs located on t he hot water outlet line should h ave a resistance reading of 180- 207 ohms through each of these heate rs.
40 SECTION VII: OPERATING INSTRUCTIONS WARNING Water heaters are he at-producing app liances. To avoid damage or injury there must be no materials stored against th e water heater or direct vent sy stem, and proper care must be taken to avoid unnecessary contact (especially by children ) with the water heater a nd direct vent system.
41 LIGHTING INSTRUCTIONS FOR YOUR SAFETY READ BEFO RE OPERATING WARNING: If you do not follo w 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.
42 CAUTION In climates wh ere below free zing temper atures may occ ur, the water heater must b e drained when power is off to the water heater to prev ent free ze damage to the heat exchanger. Drain sol enoids are recommended to prevent freeze damage during p ower failures in cold climate regions.
43 2. To set the desired temp erature on the control, all hot water faucets must be closed. If there are remote controls installed, press the “Priority” button on the control you want to change the setting on and the “Priority” indicator light will glow.
44 SCALDING Figure 18. Scalding Warning. This water heater can deliver scalding temperature water at any faucet in the system. Be careful whenever using hot w ater to avoid scalding injury. Cer tain applianc es, such as dishwas hers and automatic clothes washers may require increased wate r temperature.
45 DIAGNOSTIC CODES ON THE TEMP ERATURE CONTROL DISPLAY The Bradford White EverHot tankless water heate rs have the ability to monitor and display any operating faults on the control display. The diagnostic codes will display on the monitor and will assist in servicing the water heater.
46 Code Code Description Remedy 16 Over Temperature Warning Check for restrictions in air flow around unit and vent terminal. Check for low water flow in a circulating system causing sh ort-cycling. Check for foreign materials in combustion ch amber and/or exhaust piping.
47 SECTION VIII: MAINTENANCE WARNING Always turn off the electrical power supply, the manual ga s valve, and the manual water control valve whenever servicing this applian c e. KEEP THE WATER HEATER AREA CLEAR AND FREE FROM COMBUSTIBLE MATERIALS, GASOLINE, AND OTHER FLAMMABLE VAPORS AND LIQUIDS.
48 CAUTION Before manually operating the valve, make su re t hat a drain line has been attached to the valve to direct the discharge to a n open drain. Failure to take this precaution could mean contact with extremely hot water passing out the valve during this checking operation.
49 Figure 20. Piping for Mineral Scale Flushing. Rinnai Wa ter Heater Ga s Su ppl y V1 V3 V2 V4 H1 H2 H3 Ci rc u la t i ng Pu m p 5 g all on pai l o f vi r gin, fo od g r ad e , w hi t e vin e g a r (o r vir g in , fo od gr a d e , ci t r i c a c i d) .
50 Common Troubleshooting Commen ts on the Operation of the EverHot ® Tankless Water Heater Comment: I don’t have any hot water when I open the tap! Make sure the gas and electricity is turned on to t he water heater. The temperature display should have the green light lit when a hot wate r tap is open and th e water heater is operating.
51 SECTION IX: PARTS LIST TG-150E, TG-180E , and TG-199E Models.
52 TG-199E-N TG-199E-X TG-180E-N TG-180E-X TG-150E-N TG-150E-X No Description Quantity 001 Main Body 1 1 1 1 1 1 002 Wall Fitting Bracket 2 2 2 2 2 2 003 Rubber Bushing 1 1 1 1 1 1 004 Connection Rein.
53.
54 TG-199E-N TG-199E-X TG-180E-N TG-180E-X TG-150E-N TG-150E-X No Description Quantity 103 24 Burner Unit Assembly ( LPG) - 1 - 1 - 1 103 24 Burner Unit Assembly ( NG) 1 - 1 - 1 - 110 Manifold Assembl.
55.
56 TG-199E-N TG-199E-X TG-180E-N TG-180E-X TG-150E-N TG-150E-X No Description Quantity 100 Gas Control Assembly 1 1 1 1 1 1 101 Blind Screw 2 2 2 2 2 2 102 3/4 Gas Inlet 1 1 1 1 1 1 400 3/4 Water Inle.
57.
58 TG-199E-N TG-199E-X TG-180E-N TG-180E-X TG-150E-N TG-150E-X No Description Quantity 712 Frost Sensing Switch 1 1 1 1 1 1 713 Anti Frost Heater (120V) 1 1 1 1 1 1 715 Valve Heater (120V) Assembly 1 .
59 TG-237E Models.
60 TG-237E-N TG-237E-X TG-237E-NA TG-237E-XA No Description Quantity 001 Main Body 1 1 1 1 002 Heat Protection Plate 1 1 1 1 004 Front Panel Assembly 1 1 1 1 007 Wall Fitting Bracket 2 2 2 2 010 Front.
61.
62 TG-237E-N TG-237E-X TG-237E-NA TG-237E-XA No Description Quantity 101 Screw 2 2 2 2 103 Manifold Assembly (LPG) - 1 - 1 103 Manifold Assembly (NG) 1 - 1 - 104 Burner Unit Assembly (LP G) - 1 - 1 10.
63.
64 TG-237E-N TG-237E-X TG-237E-NA TG-237E-XA No Description Quantity 015 Cable Access 1 1 1 1 016 Cable Access Packin g 1 1 1 1 100 Gas Connection 1 1 1 1 101 Screw 2 2 2 2 102 Gas Control Assembly 1 .
65.
66 TG-237E-N TG-237E-X TG-237E-NA TG-237E-XA No Description Quantity 708 120V Anti-Frost Heater Assembly 1 1 1 1 712 120V Valve Heater Assembly 1 1 1 1 714 Thermal Fu se Harness 1 1 1 1 716 Thermistor.
67 SECTION X: WARRANTY What does this Limited Warr anty Cover? This limited warranty covers b o th the heat exchanger and component parts for leakage or other malfunction caused by defects in materials and/or wo rkmanship.
68 On-demand re-circulatio n is defined as a hot water re-c irculating loop or system that utilizes existing hot and cold lines or a dedicated return line, and only acti vates when hot water is used. It can be activated by a push button, motion sensor, or voice activation but not by a temperature senso r .
69 EverHot® Limited Warranty Registration In order to confirm Limit ed Warranty coverage at 12 year s for Residential Applications 1 , complete the information below and click submit.
70 NOTES:.
71 NOTES:.
Ambler, PA For U.S. and Canada field service, Contact your professional installer or local Bradford White representative. Sales/ 800-523-2931 Fax/ 215-641-1670 Parts Fax/ 215-641-2180 Technical Suppor.
デバイスBradford-White Corp TG-237E-N(X)Aの購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Bradford-White Corp TG-237E-N(X)Aをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはBradford-White Corp TG-237E-N(X)Aの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Bradford-White Corp TG-237E-N(X)Aの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Bradford-White Corp TG-237E-N(X)Aで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Bradford-White Corp TG-237E-N(X)Aを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はBradford-White Corp TG-237E-N(X)Aの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Bradford-White Corp TG-237E-N(X)Aに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちBradford-White Corp TG-237E-N(X)Aデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
