BoschメーカーAQUA STAR 250SX LPの使用説明書/サービス説明書
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MOD EL 2 50S X N G a n d 2 50S X L P T emperature Modulat ed wit h Elect ronic Ignition Suit able for heating pot able wat er only Not approved for space heat ing purposes (Intende d for variable flow applicatio ns with multipl e tapping poin ts) 250 SX NG 250 SX LP 6 720 607 057 (04.
6 720 607 057 2 Index Index 1W a r n i n g 2 2 Appliance details 4 2.1 Features 4 2.2 250 SX Specif ications (Tech nical data) 4 2.3 Dimensions and Minimu m installation clearances 6 2.4 General rules to follow for safe operation 7 2.5 Proper location for installing your heater 7 2.
6 720 607 057 Warning 3 What t o do i f you s mell gas • Clos e gas val ve. Open windows. • Do not tr y to light an y appli ance. • Do n ot touch any e lectrical sw itch; do not use any phone in your bu ilding. • I m m e d ia t e l y c a l l y ou r g a s su p p l ie r f r o m a n e i g h bo r ’ s phone.
6 720 607 057 4 Applia nce details 2 Applianc e details 2.1 Featur es Parts • Touch Pad i nterfa ce co ntrol • High power pre-mix compact burner wit h lo w Nox emissions • Modulating Gas Valve with constant gas:a ir ratio contr ol • Modulating water v alve for improved c omfort and tempe rature contro l.
6 720 607 057 App lianc e deta ils 5 • Minim um rec ommended wate r pr essure: 30 PSI (2.07 bar) • Connecti ons: – Bottom of heater Comb ust ion •N O x ≤ 55 ppm •C O ≤ 250 ppm •C O 2 level set from factory , see cha pter 9.
6 720 607 057 6 Applia nce details 2.3 Dimension s and Minimum in stallation clearances Fig. 5 Dimension s 1 Cover 2 On/Off switch 3 Rese t butto n 4 LCD di splay 5 Program bu tton 6 Temperature buttons Fig.
6 720 607 057 App lianc e deta ils 7 2 . 4 G e n e r a l r u l e s t o f o l l o w f o r s a f e operatio n B 1. You should f ollow the se instruc tions wh en you instal l your hea ter.
6 720 607 057 8 Applia nce details 2.6 Cleara nces The 250 SX i s desi gn cert ified f or installat ion on a combus tible wa ll (see 2.7 Mounting installatio n) provid ed the floor cover ing bel ow the heate r is noncom bustible.
6 720 607 057 App lianc e deta ils 9 – b) In uncon fined spac es in buildi ngs of convent ional fra me, ma sonry, or metal const ructi on, in filtr ation air is no rmally adequ ate to provide air for combu stion.
6 720 607 057 10 Applia nce details The maximum flue gas exhaust temperature on the 250 SX is 437°F (225°C) Venting Optio ns Exhaust vent diameter and material * Exhaust ven t maximum length * Exhau.
6 720 607 057 App lianc e deta ils 11 The appliance should b e located as c lose to the poi nt of terminati on as possib le. The maximum vent length is 26 feet (8 m) with one 90 degree elbow.
6 720 607 057 12 Applia nce details Room sea led installa tion (TWIN P IPE SYSTEM) Fig. 12 Combus tion air pip e: ≤ 26 ft (8 m ) Exha ust ve nt p ipe: ≤ 26 ft ( 8 m) I f t h e t o t a l h o r i z o n t a l e x h a u s t v e n t l e n g t h i n a s i d e w a l l installa tion is greater than or equal to 5 feet (1.
6 720 607 057 App lianc e deta ils 13 Recomm ended exh aust vent t erminator pos ition Fig. 16 * Subject to local c odes and anticipated sn ow level ** Other equip ment that operate s with a mechanic al air inlet may req uire greater dista nces, refere nce manufacture r's instructio ns Ref.
6 720 607 057 14 Applia nce details Supportin g the exha ust vent sys tem and the use of an external con densate trap Extern al cond ensate tr aps B A condens ate trap must be used in any sidewa ll exha ust vent instal lations when the tota l vent length is ≥ 5 ft (1.
6 720 607 057 App lianc e deta ils 15 A cond ensate drai n tube must be attach ed to the exhau st collar of the heater for any vert icall y exhaus ted vents, see page 1 4.
6 720 607 057 16 Applia nce details FOR NA TU RAL GAS Maxi mum Cap acity o f pip e in Cubi c Fee t of Gas per H our for Gas Pr essure of 0.5 Psig or less and a P ressure drop of 0. 3 in Wat er Col umn (0 .75mbar ).(Bas ed on a 0 .60 S pecifi c Gravi ty Gas) Btu n umbers gi ven in thous ands.
6 720 607 057 App lianc e deta ils 17 2.11 Gas line sizing B It is str ongly reco mmend ed th at t he Na tural Gas pipe be Bla ck Iron pipe the entire d istance from the outside met er to the inlet of th e gas connecti on. ¾” B l a c k I r o n p i p e u p t o 2 0 f e e t ( 6 .
6 720 607 057 18 Applia nce details 2.13 Water con nections W h e n f a c i n g t h e h e a t e r , t h e ¾ ” c o l d w a t e r i n l e t i s o n t h e b o t t o m r i g h t a n d th e h o t w a t e r o u t l e t i s o n t h e b o t t o m left.
6 720 607 057 App lianc e deta ils 19 2.14 Elec trical connections The 250 SX requires an ele ctrical p ower su pply from a 120VAC 60Hz ci rcuit and mu st be p roper ly gr ounded. A means f or switch ing off the 120VA C power supply must be provided. The hea ter is wired as shown in th e wirin g diagr am (chapter 6, Fig.
6 720 607 057 20 Applia nce details When the heater is i n operat ion you will hear its power vent fan a nd burne r operatin g. Upon turning off the h ot water flow t he power vent fan will continu e to operate f o r u p t o 6 0 s e c o n d s t o e x h a u s t a l l f l u e g a s e s .
6 720 607 057 Operat ion instructi ons 21 3 Operation in structions Fig. 26 1 On/Off swit ch 2 Reset butto n 3 Program Key 4 Increasing temperat ure selecto r 5 Decreasing t emperature selecto r 6 LCD displ ay 3.1 Power On B T o start the ap pliance swit ch the button to positi on ( I ).
6 720 607 057 22 Operat ion in structi ons Setti ng th e wat er tem perat ure The desired t emperat ure o f the ho t wat er can be adju sted on the fr ont control panel of the heater .
6 720 607 057 Operat ion instructi ons 23 3.3 Use of remote contro l accessory Fig. 30 Remote control The wireless remote control access ory and the temperatu re sel ector b uttons on th e front of the water heate r operate identica lly. Cont act your distributo r or CEC to order if the remote control acc essory is prefer red.
6 720 607 057 24 Maint ena nce an d ser vice 4 Maintenance and service The unit shoul d be checked once a year by a gas technic ian. If re pairs are n eeded, the repairs should be done b y a gas technicia n To r emove front cov er B R e m o v e p l a s t i c d e c a l s o n f r o n t p a n e l ( P a g e 5 , F i g .
6 720 607 057 Troubleshooting 25 Test by followin g 4th bullet unde r BURNERS DO NOT IGNITE WHEN HOT WATER IS TURNED ON. LOW WATER FLOW/PRESSURE • T o o m a n y h o t w a t e r a p p l i c a t i o n s a r e b e i n g us ed sim ul ta ne ous ly or too mu ch flo w i s b ei ng demande d The 250 SX will effect ively sup port two 2.
6 720 607 057 26 Troubleshooting Display Cause Solu tion E9 Temperature limiter opened circuit (overheat). Trips at 220F (104 C). Check connections.* Check heat exchanger condition. * EA No ionization during safety time (safety t ime out). Check gas pr essure.
6 720 607 057 Electr ical diag ram 27 6 Electrical d iagram Fig. 36 Elec trical scheme 1 Intlet water temp erature sensor 2 Ioniz ation se nsor 3 Water flow sensor 4 Over heat protect ion 5 Temperatur.
6 720 607 057 28 250 SX Functiona l scheme 7 250 SX Functional s cheme Fig. 37 Functional scheme.
6 720 607 057 Inte rior comp onent s dia gram a nd parts list 29 8 Interior components diagram and parts list 8.1 Interi or componen ts Fig. 38 Components 1 Cover 2 On/Off swit ch 3 Reset butto n 4 LC.
6 720 607 057 30 Inte rior comp onent s d iagra m and par ts l ist 8.2 Comp onents diagram Fig. 40 Components Diagram.
6 720 607 057 Inte rior comp onent s dia gram a nd parts list 31 8.3 Parts list Item Descri ption Ref erence 1 Front cover 8 705 42 1 83 7 2 Shield 8 7 05 506 66 1 3 Heat exc hanger 8 705 406 285 4 He.
6 720 607 057 32 Specia l adjustm ent for mea suring and ad justing CO2 level s 9 Special adjus tment for measuring and adjusti ng CO 2 levels The CO 2 ca n onl y be adjuste d by a c ertif ied gas techni cian wit h a calibrat ed CO 2 anal yzer. 9.1 Adjust ing the unit Fact ory settings of thi s appl iance a re listed in ta ble 7.
6 720 607 057 Specia l adjustmen t for measuring and adju sting CO2 leve ls 33 Fig. 43 Adjust ing Leave “Pr ogram” mode B Turn ON/OFF switch in position OFF and then ON again . i NOTE: turn ing scr ew clockwise decreases CO 2 lev el, tur ning coun tercl ockwis e incr eases it.
6 720 607 057 34 Protect ing the environme nt 10 Protect ing the environment Packin g Th e pa ck i ng box ma y b e f ul ly r ec yc le d a s c on fi rme d b y the rec ycling symbol . Components Many parts i n the heater can be f ully recycle d in t he en d o f t h e p r o d u c t l i f e .
6 720 607 057 Twel ve Year L imited Wa rranty 35 11 Twelve Year Limited Warranty Gene ral Aquasta r water heaters are warrant ed by the Manufa cture r (BOSCH) throu gh Co ntrol led Energy Corp.
Replacement P arts available from North American Distributor CONT ROLLED EN ERG Y CORP . 340 Mad Ri ver Park W aitsfield , V ermont 0567 3 Phone 800-642- 3 1 1 1 Fax (802) 496- 6924 www .cont rolledenergy.com/tech tec hsupport@controll edenergy .com VU L C ANO T ermodomés ticos S.
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