Hoshizaki SWH/3 manual

Hoshizaki “A Superior Degr ee of Reliability” www .hoshizaki.com Models KM-1301SAH/3, SWH/3, SRH/3 KM-1400SWH-M, SWH3-M KM-1601SAH/3, SWH/3, SRH/3 KM-1900SAH/3, SWH/3, SRH/3 KM-2100SWH3, SRH3 KM-2500SWH3, SRH3 KMH-2000SWH/3, SRH/3 Stackable Crescent Cuber Hoshizaki America, Inc. SE RV ICE MA NU AL Number: 73197 Issued: 8-16-2013[...]

2 W ARNING Only quali ed ser vice technicians should inst all and ser vice the appliance . T o obtain the name and phone number of y our local Hoshizaki Cer ti ed Ser vice Repr esentativ e, visit www .hoshizaki.com. No ser vice should be under tak en until the technician has thor oughly r ead this Ser vice Manual. F ailure t o ser vice and ma[...]

3 CONTENTS Impor tant Saf et y Inf or mation ................................................................................................. 6 I. Construction and W ater/R efrigeration Cir cuit Diagr am ....................................................... 8 A. KM Construction.....................................................................[...]

4 C . Set tings and A djustments ............................................................................................ 45 1 . Def ault Dip Switch Set tings .................................................................................... 45 a) "E" and "G" Contr ol Board without Har v est P ump Timer Oper ation ........[...]

5 23. KM-1 900SRH with URC-21F ............................................................................... 82 24. KM-1 900SRH with URC-22F ............................................................................... 83 25. KM-1 900SRH3 with URC-21F ............................................................................. 84 26. KM-1 900S[...]

6 Impor tant Safety Inf ormation Throughout this man ual, notices appear t o bring your at tention t o situations which could result in death, serious injur y , damage t o the appliance, or damage t o proper t y . W ARNING Indicates a hazar dous situation which could r esult in death or serious injury . NO TICE Indicates a sit uation which could re[...]

7 W ARNING, continued • The appliance is not intended f or use by per sons (including children) with r educed ph y sical, sensor y , or mental capabilities, or lac k of e xper ience and knowledge , unless they ha ve been giv en super vision or instr uction concerning use of the appliance by a per son responsib le f or their safety . • Children [...]

8 I. Construction and W ater/R efrigeration Cir cuit Diagram A. KM Construction 1 . Air-Cooled Models (SAH/3) Ev aporat or Assembl y Spra y T ubes Inlet W ater V alv e W ater Supply Inlet Hot Gas V alv e Junction Bo x Condenser Check V alv es (refrigeration) Contr ol Bo x Drier T ransf ormer Box (3 phase model) Contr ol S witch Thermostatic Bin Con[...]

9 Ev aporat or Assembl y Spra y T ubes Inlet W ater V alv e W ater Supply Inlet Hot Gas V alv e Junction Bo x W ater Regulating Va l v e Check V alv es (refrigeration) Contr ol Bo x Liquid Line V alv e Drier T ransf ormer Box (3 phase model) Contr ol S witch Bin Control Thermostat Compr essor Cleaning V alve Float Switch W ater P ump Check V alv e [...]

10 Evapor at or Assembl y Spra y T ubes Inlet W ater V alv e W ater Supply Inlet Hot Gas V alv e Junction Bo xes Receiv er Check V alv es (refrigeration) Contr ol Bo x Liquid Line V alv e Drier T ransf ormer Box (3 phase model) Contr ol S witch Bin Control Thermostat Compr essor Cleaning V alve Float S witch W ater P ump Check V alv e (wat er) Ther[...]

11 B. KMH Construction 1 . W ater -Cooled Models (SWH/3) Ev aporat or Assembl y Spra y T ubes Inlet W ater V alv e Float S witch W ater P ump W ater Supply Inlet Junction Bo x W ater Regulating V alv e Check V alv es (refrigeration) Contr ol Bo x Liquid Line V alv e Drier T ransf ormer Box (3 phase model) Contr ol S witch Bin Control Thermostat Com[...]

12 2. Remot e Models (SRH/3) Ev aporat or Assembl y Spra y T ubes Inlet W ater V alv e Float S witch W ater P ump W ater Supply Inlet Junction Bo x Check V alv es (refrigeration) Contr ol Bo x Liquid Line V alv e Drier T ransf ormer Box (3 phase model) Contr ol S witch Bin Control Thermostat Compr essor Cleaning V alve Ther mostatic Expansion V alv[...]

13 C. W at er/R efr igeration Cir cuit Diagr am 1 . Air-Cooled Models (SAH/3) W at er Supply Cleaning V alv e Float Switch Drain Check V alv e Thermostatic Expansion V alves Compr essor Hot Gas Va l v e Check V alv es High-P ressure Switch Strainer Drier Condenser Evapor ator Ser vice Va l v e Discharge Line Suction Line W at er P ump Thermistor Sp[...]

14 2. W at er -Cooled Models (SWH/3/-M) W at er Supply Cleaning V alv e Float Switch Drain Check V alv e Thermostatic Expansion V alves Compr essor Hot Gas Va l v e Check V alv es High-P ressure Switch Strainer Drier Condenser Evapor ator Ser vice Va l v e Discharge Line Suction Line W at er P ump Thermistor Spra y T ubes Inlet W ater V alv e Pump-[...]

15 3a. Remot e Models (SRH/3) Ex cept KM-250 0SRH3 Condenser Unit with Headmast er (CPR) W at er Supply Cleaning V alv e Float Switch Drain Check V alv e Expansion V alv es Compr essor Hot Gas Va l v e Check V alv es High P ressure Switch Strainer Drier Condenser Evapor ator Ser vice Va l v e Discharge Line Suction Line W at er P ump Thermistor Spr[...]

16 3b. Remot e Models (SRH3) KM-250 0SRH3 Condenser Unit without Headmast er (CPR) W at er Supply Cleaning V alv e Float Switch Drain Check V alv e Expansion V alv es Compr essor Hot Gas Va l v e Check V alv es High-P ressure Switch Strainer Drier Condenser Evapor ator Ser vice Va l v e Discharge Line Suction Line W at er P ump Thermistor Spra y T [...]

17 II. Sequence of Operation and Service Diagnosis A. Sequence of Operation Flo w Char t 1 . "E" and "G" Control Boar d without Harvest P ump Timer Operation Components Energized when the Contr ol S witch is in the "W A SH" P osition The "W ASH" position on the control s witch is used when cleaning and saniti[...]

18 • WV time: 6 min. or the length of har vest min us 50 sec. (S4 dip switch 7), whiche ver is shor t er . Do not adjust S4 dip s witch 7 out of the f actory position. • Max. har v est time: 20 min. FS check 1 to 3-min. har vest timer in control (S4 dip s witch 1 & 2) Legend: BC –bin control Comp –compressor FM –f an motor FMR –f an[...]

19 B. Service Diagnosis W ARNING • The appliance should be diagnosed and repair ed only b y quali ed ser vice personnel t o reduce the risk of death, electr ic shoc k, serious injur y , or re . • Risk of electric shock. Contr ol s witch in "OFF" position does not de-energize all loads Use e xtr eme caution and e xer cise safe el[...]

20 1 . "E" and "G" Control Boar d without Harvest P ump Timer Diagnosis 3) P ow er On : T ur n on the power suppl y , then mov e the control s witch to the "ICE" position. A 5-sec. delay occur s. • "E" Contr ol Board: CB red "PO WER OK" LED tur ns on. • "G" Contr ol Board: CB red "[...]

21 5) Initial Harvest Cy c le – LEDs 1, 4, and 2 are on. WV continues. Comp , FMR, and HGV energiz e. CB monitor s the warming of the ev aporat or via the ther mist or locat ed on the suction line. When the thermistor r eaches 48°F (9°C), CB reads 3.9 kΩ fr om the ther mist or and turns har vest t ermination ov er t o the har v est timer (S4 d[...]

22 b) Comp and FMR Diagnosis : If Comp and FMR de-energiz e once freeze begins , check that appliance has not shut of f on HPS ("POWER OK" LED of f). If so , chec k "3)b) HPS Diagnosis" abov e. If "POWER OK" LED is on, chec k for 1 1 5V AC at CB K1#1 (V) or #9 (V) to neutr al (W). If 1 1 5V A C is not pr esent and L[...]

23 h) F r eeze T ermination Diagnosis: Af ter 5 min. in freeze , disconnect CB K5 FS connector . 1 5 sec. later appliance should s witch out of the freez e cy cle (1 5 second dela y af ter FS opens bef ore t er minating the freez e cy cle). If appliance remains in freez e longer than 1 5 sec. af t er FS r emov ed, replace CB . If appliance s witche[...]

24 8) Normal Harv est Cy c le – Same as the initial harvest c y cle. Return to st ep 5 abov e. Note: Appliance continues t o cy cle until BC is satis ed or power is turned of f . The appliance alw ay s restar ts at the 1 -min. ll cy cle. 9) Shutdown : "E" and "G" Contr ol Board When the appliance is running , hold ice in[...]

25 2. "G" Control Boar d with Harvest P ump Timer Diagnosis 3) P ow er On : T ur n on the power suppl y , then mov e the control s witch to the "ICE" position. A 5-sec. delay occur s. CB red "PO WER OK" LED and gr een "BC CLOSED" LED turn on. If yellow "BC OPEN" LED is on, chec k CB K4 jumper . Note[...]

26 5a) Initial Harvest Cy c le – LEDs 1, 4, and 2 are on. WV and X1 1 r ela y continue . Comp , FMR, HGV , and X1 0 rela y energiz e . CBmonitor s the warming of the e v aporat or via the ther mist or locat ed on the suction line. When the thermistor r eaches 48°F (9°C), CB reads 3.9 kΩ fr om the ther mistor and turns har vest t er mination[...]

27 If 1 1 5V A C is present on t er minal #3(P) and not on t erminal #5 (Y), replace X1 0 rela y . If 1 1 5V A C is present on X1 0 rela y ter minal #7 (Y) and PM is not ener giz ed, check f or 1 1 5V A C at X1 0 rela y terminal #4 (R) to neutral (W) and t erminal #6 (DBU) to neutr al (W). If 1 1 5V AC is pr esent on ter minal #6(DBU) and not[...]

28 c) WV and HGV Diagnosis : If WV is ener gized, chec k for 1 15V A C at CB K1 #6 (O) t o neutral (W). If 1 1 5V A C is pr esent af ter PM ener giz es in har v est cy cle, r eplace CB. If 1 1 5V A C is not present, r eplace WV (bypassing). If HGV did not de-energiz e at the end of har v est, chec k f or 1 1 5V AC at CB K1 #2 (P) t o neutral (W). I[...]

29 7) Pump-Out Cy cle – LEDs 1, 3, and 2 are on (1 0/20 second pump-out). Timing of the rst pump-out is det er mined by S4 dip s witch 5& 6. See the tab le belo w . "G" Control Boar d Settings S4 Dip S witch Set ting Pump-Out F requency 1st Pump-Out "G" Control Boar d No. 5 No. 6 OFF OFF Ev er y cy cle Af ter 2nd fre[...]

30 8) Normal Harv est Cy c le – Same as the initial harvest c y cle. Return to st ep 5a) abov e. Note: Appliance continues t o cy cle until MBC is satis ed or power is s witched of f . The appliance alw ay s restar ts at the 1 -min. ll cy cle. 9) Shutdown : "G" Contr ol Board When the appliance is running , hold ice in contact wit[...]

31 C. Control Boar d Check Bef or e r eplacing CB that does not sho w a visib le def ect and that y ou suspect is bad, alw ay s conduct the follo wing chec k pr ocedur e. This procedur e will help you v erify your diagnosis. Alar m R eset: If CB is in alar m (beeping), press the "ALARM RESET" b ut ton on CB while CB is beeping. W ARNING!?[...]

32 D . Bin Contr ol Check BC shuts down the icemak er within 1 0 sec. when ice contacts the ther mostatic b ulb , reg ardless of the cy cle at activation. NO TICE When the ambient t emperature is belo w 45°F (7°C), BC opens and shuts down the appliance e v en if the ice storage bin is empty . When BC is set in the pr ohibited range , the applianc[...]

33 E. Float S witch Chec k and Cleaning FS is used to det er mine that there is suf ficient w ater in the wat er tank af ter the 1 -min. ll c y cle and af ter each harvest cy cle. FS is also used to det er mine that the appr opriate v olume of wat er has been conv er ted int o ice befor e switching out of the fr eez e cy cle. No adjustment is re[...]

34 2. Float Switc h Cleaning Depending on local wat er conditions, scale ma y b uild up on FS . Scale on the switch can cause the  oat t o stic k. In this case, FS should be cleaned. 1) T ur n of f the power suppl y . 2) Remo ve the fr ont panel, then mo v e the contr ol s witch to the "OFF" position. 3) Remo ve the insulation panel, t[...]

35 F . Thermist or Check T o check thermistor r esistance , f ollow the steps belo w . 1) T ur n of f the power suppl y . 2) Remo ve the fr ont panel. Mov e the contr ol s witch to the "OFF" position. 3) Remo ve the contr ol bo x cov er . 4) Remo ve the thermistor fr om the r efrigerant tubing. 5) Immerse the thermistor sensor por tion in[...]

36 G. Diagnostic T ables 1 . No Ice Pr oduction No Ice Pr oduction - Possib le Cause 1. P ower Suppl y a) Of f, b lown fuse , or tripped break er . b) Not within specications. 2. Main T ransf ormer (3 phase model) a) V oltage tap s witch not set t o pr oper v oltage . b) Coil winding open or shor t ed. 3. F use (Control Bo x) a) Blown. 4. Ther m[...]

37 No Ice Pr oduction - Possib le Cause 15 . P ump Motor a) Motor winding open. b) Bearing wor n out or loc ked r otor . c) Def ectiv e capacitor . d) Mechanical seal worn out. 16 . Ther mostatic Expansion V alv e a) Bulb loose. b) Operating erraticall y . 1 7. Liquid Line V alv e a) Closed in freez e cy cle. b) Open in har v est cy cle . 18 . F an[...]

38 F reeze-Up - P ossible Cause 12 . Hot Gas V alv e a) Closed or restricted. 13 . Liquid Line V alv e a) Open. F reeze Cyc le 1. Evapor at or a) Scaled up . b) D amaged. 2. Spra y T ubes and/or Spray Guides a) Dir ty . b) Out of position. 3. Refrigerant Charge a) L o w. 4. Control Boar d See "II.C . Contr ol Boar d Chec k" a) F reeze tim[...]

39 Low Ice P r oduction - P ossible Cause Long F reeze Cyc le 1. Evapor at or a) Scaled up , dir ty . 2. Float Switch See "II.E. Float Switch Chec k and Cleaning" a) Scaled up , dir ty . b) Float sticking . c) Def ectiv e s witch. 3. Inlet W ater V alv e a) Leaking by . 4. Hot Gas V alv e a) Erratic or open. 5. Condenser a) Clogged. 6. Co[...]

40 III. Controls and A djustments • A Hoshizaki e x clusive contr ol board is emplo yed in KM and KMH series appliances. • All models are pr etest ed and f actor y adjust ed. • F or a contr ol boar d chec k pr ocedur e, see "II.C . Control Boar d Check." NO TICE • F ragile, handle v er y carefull y . • The control boar d contain[...]

41 A. Control Boar d L a y out 1 . "E" Control Boar d "E" Control Boar d P ar t Number 2A1 41 0-02 "E" Contr ol Boar d Micropr ocessor (control boar d r e vision le vel indicat ed on label on side of rela y) • P art Number • K1 Connector Pins #1 through #1 0 #1, 9 Magnetic Contact or or Compr essor Rela y #2 Hot Ga[...]

42 2. "G" Control Boar d "G" Control Boar d P ar t Number 2A3792-0 1 "G" Contr ol Boar d • K4 (red) Connect or Mechanical Bin Contr ol or K4 Jumper (thermostatic bin control application) Label (control boar d r e vision le vel indicat ed on label on side of rela y) • K1 Connector Pins #1 through #1 0 #1, 9 Magnetic[...]

43 B. LED Lights and A udible Alarm Saf eties 1 . "E" Control Boar d At star tup , a 5-second delay occur s while the control boar d conducts an int er nal timer check. A beep occur s when pow er is tur ned of f . The red "PO WER OK" LED indicates proper contr ol volt age and r emains on unless a control v oltage pr ob lem occur[...]

44 2. "G" Control Boar d At star tup , a 5-second delay occur s while the control boar d conducts an int er nal timer check. A beep occur s when the control s witch is mov ed to the "ICE" position. The red "PO WER OK" LED indicat es pr oper contr ol v oltage and r emains on unless a control v oltage pr oblem occur s. T[...]

45 C. Set tings and Adjustments NO TICE Dip s witches ar e f actor y set. F ailure t o maintain f actory set tings ma y adver sel y af fect perf or mance and warr anty cov erage . F or mor e inf ormation, contact your Hoshizaki Ser vice Cent er . 1 . Default Dip Switch Set tings The dip s witches ar e f actor y -adjusted t o the follo wing position[...]

46 F reeze Timer (9 & 1 0) P ump-Out Fr equency Control (5 & 6) P ump-Out Timer (3 & 4) Har v est Timer (1 & 2) F actory Use (8) Bin Contr ol Select or (7) "E" Contr ol Board Har v est P ump T imer (7) "G" Contr ol Board (Do Not Adjust) 1 2 3 4 5 6 7 8 9 10 ON S4 Dip S witch "E" and "G" Contro[...]

47 3. Pump-Out Timer (S4 dip switc h 3 & 4) NO TICE On models with har v est pump timer , do not adjust 3 off and 4 on. P ump does not run in pump-out rotation in this set ting . When a pump-out is called f or , the pump motor st ops for 2 sec., then ener gizes in the re v er se direction, t aking w at er fr om the bot tom of the w at er tank a[...]

48 4. Pump-Out F requency Contr ol (S4 dip switch 5 & 6) The pump-out frequenc y contr ol is f actor y set. Generall y no adjustment is requir ed. How e ver , where wat er qualit y is bad and the icemaker needs a pump-out mor e of t en, the pump-out frequenc y can be adjust ed. The pump-out frequency contr ol can be set to ha v e a pump-out occ[...]

49 b) Harvest P ump Timer: "G" Contr ol Boar d NO TICE F actory set for pr oper operation. Do not adjust. Adjustment outside of the f actor y def ault set ting ma y r esult in damage t o the appliance. Depending on the har v est pump timer set ting, the pump mot or either sta ys of f or is energiz ed the last 50 seconds of har vest. When [...]

50 8. Float Switc h Select or (S5 dip switc h 1): "G" Control Boar d NO TICE Do not adjust. This must be lef t in the f actor y def ault position or the icemaker will not operat e corr ectl y . 9. Re ll Counter (S5 dip switch 2 thr ough 5): "G" Contr ol Boar d NO TICE Do not adjust. These must be lef t in the f actor y def au[...]

51 IV . Refr igeration Cir cuit and Component Ser vice Inf or mation W ARNING • This appliance should be diagnosed and repair ed only b y quali ed ser vice personnel t o reduce the risk of death, electr ic shoc k, serious injur y , or re . • Mov e the control s witch to the "OFF" position and turn off the po wer supply . Place t[...]

52 2. Brazing W ARNING • R-404A itself is not  ammab le at atmospheric pressur e and temperatur es up t o 1 7 6°F (80°C). • R-404A itself is not e xplosiv e or poisonous. Howe ver , when exposed t o high temper atur es (open  ames), R-404A can be decomposed to f or m hy drouoric acid and carbonyl uoride both of which are hazar dou[...]

53 4) Close the low -side val v e and high-side val v e on the g auge manif old. 5) Disconnect the gauge manif old hose from the v acuum pump and at tach it t o a refrigerant service cylinder . Remember t o loosen the connection and purge the air fr om the hose. F or the r equir ed r efrigerant charge , see the rating label inside the icemaker . Ho[...]

54 B. Component Service Infor mation NO TICE When r eplacing a component listed belo w , see the notes t o help ensur e pr oper operation. Component Notes Compr essor 1 phase: Install a new st ar t capacitor , r un capacitor , and star t rela y . 3 phase: Install a new magnetic cont actor . Thermostatic Expansion V alves • At tach the thermostati[...]

55 C. W at er R egulating V alve Adjustment (w ater -cooled models) The wat er regulating v al v e is f actor y set, and generall y no adjustment is requir ed. Howe ver , when necessar y , adjust the wat er regulator using the f ollowing pr ocedure. 1) P r epar e a ther momet er t o chec k the condenser drain t emperature . At tach a pr essure gaug[...]

56 V . Maintenance The maintenance schedule belo w is a guideline. More fr equent maintenance ma y be requir ed depending on wat er quality , the appliance's en vir onment, and local sanitation regulations W ARNING • Only quali ed ser vice technicians should service the appliance. • T o reduce the risk of electr ic shoc k, do not t ouch[...]

57 VI. Pr eparing the Icemak er f or Per iods of Non-Use NO TICE • When st oring the appliance f or an e xt ended time or in sub-fr eezing t emperatur es, f ollo w the instructions below t o pr e v ent damage. • T o pre vent damage t o the w at er pump , do not operate the appliance with the control s witch in the "W ASH" position whe[...]

58 3. On wat er -cooled model, remo v e the w ater fr om the wat er -cooled condenser: 1) Make sur e the power suppl y is off , then remo ve the fr ont, t op , and r ight side panels. 2) Close the condenser wat er supply line shut-of f val ve . If connected t o a closed loop sy stem, also close the condenser r eturn line shut-of f v al v e . 3) Ope[...]

59 VII. Disposal The appliance contains r efrigerant and must be disposed of in accor dance with applicable national, st at e , and local codes and r egulations. Refrigerant m ust be reco ver ed b y pr operly cer ti ed ser vice personnel.[...]

60 VIII. T echnical Infor mation W e r eser v e the r ight to mak e changes in specications and design without pr ior notice. A. Specication and P erf ormance Data P r essur e data is r ecor ded at 5 min. into fr eezing cycle . The data not in bold should be used f or r ef erence onl y . 1 . KM-130 1SAH SPECIFICATION SHEET AC SUPPLY VOLTAGE 2[...]

61 2. KM-1 30 1SAH3 SPECIFICAT ION SHEET AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 9.5 A ( 5 Min. Fr eeze AT 104°F / W T 80°F) MINIMUM CIRCUI T AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTR IC & W ATER C ONSUMPT ION 90/70°F 70/50°F ELECTR IC W (kW H /100 lbs.) 2220 (4.6) 2090(3 .9) W ATER gal./24HR (gal./100 l bs.) 181(15.6) 511(39.4) ICE PRODU[...]

62 3. KM-1 30 1SWH SPECIFICAT ION SHEET AC SUPPLY VOLTAGE 208-230/60/1 (3 wi re with neutral f or 115V) AMPERAGE 8.2 A ( 5 Min. Fr eeze AT 104°F / W T 80°F) MINIMUM CIRCUIT AMP ACITY 20 A MAXIMUM FUSE SIZE 20 A 90/70°F 70/50°F ELECTR IC W (kW H/100 lbs.) 1760(3.2) 1740(3.2) W ATER gal ./24HR (gal./100 lbs .) 257(19.4) 546(41.4) W ATER C OOLED C[...]

63 4. KM-1 30 1SWH3 SPECIFICATION SHEET 208-230/60/3 6.1 A ( 5 Min. Freeze AT 104°F / WT 80°F) 20 A 20 A 90/70°F 70/50°F 1840(3.4) 1770(3.2) 248(19.1) 557(41.8) 1547(119) 857(64) 32.2 lbs. (14.6 kg) 1440pcs. R404A, 2 lb. 8.2 oz. (1140g) PERFORMANCE DATA 70/21 1333 605 1323 600 1246 565 80/27 1326 601 1311 594 1198 544 90/32 1323 600 1300 590 12[...]

64 5. KM-1 30 1SRH with URC-14F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) AMPERAGE 13.5A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2090(4.1) 2010(3.6) WATER gal./24HR (gal./100 lbs.) 2[...]

65 6. KM-1 30 1SRH3 with URC-14F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 10.7A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2140(4.3) 2090(3.8) WATER gal./24HR (gal./100 lbs.) 192(16.0) 463(34.6) ICE PRODUCTION PER CYCLE 30.7 lbs. (13.9 kg)[...]

66 7 . KM-1 40 0SWH-M SPECIFICAT ION SHEET AC SUPPLY VOLTAGE 208-230/60/1 (2 W ire) AMPERAGE 9.7 A ( 5 Min. Freeze AT 104°F / W T 80°F) MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A ELECTRIC & W ATER CO NSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 1820(3.4) 1800(3.2) POTABLE W AT ER gal./24HR (gal./100 lbs.) 244(18.9) 462(33[...]

67 8. KM-1 40 0SWH3-M SPECIFICAT ION SHEET AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 7.1 A ( 5 Min. Freeze AT 104°F / W T 80°F) MINIMUM CIRCUIT AMPACIT Y 15 A MAXIMUM FUSE SIZE 15 A ELECTRIC & W AT ER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 1720(3.3) 1700(3.0) POTABLE W AT ER gal./24HR (gal./100 lbs.) 225(17.9) 449( 33.4) W AT[...]

68 9. KM-1 60 1SAH SPECIFICATION SHEE T AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) AMPERAGE 15.0 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2630(4.70) 2450(4.03) WATER gal./24HR (gal./100 lbs.) 228(17.0) 709[...]

69 1 0. KM-1 60 1SAH3 SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 12.0 A (5 Min. Freeze AT 104°F/ W T 80°F) MINIMUM CIRCUIT AMPACIT Y 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & W ATER CO NSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2610(4.65) 2370(3.91) W AT ER gal./24HR (gal./100 lbs.) 249(18.5) 708(48.6) ICE PRODUCTIO[...]

70 1 1 . KM-1 60 1SWH SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) AMPERAGE 13.4 A (5 Min. Freeze AT 104°F/ W T 80°F ) MINIMUM CIRCUIT AMPACIT Y 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & W AT ER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2410(3.8) 2300(3.7) W AT ER gal./24HR (gal./100 lbs.) 373[...]

71 1 2. KM-1 60 1SWH3 SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 9.0 A (5 Min. Freeze AT 104°F/ W T 80°F) MINIMUM CIRCUIT AMPACIT Y 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & W ATER CO NSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2390( 3.66) 2270(3.5) W AT ER gal./24HR (gal./100 lbs.) 372( 23.8) 804( 51.7) W AT ER COOL[...]

72 1 3. KM-1 60 1SRH with URC-21F Auxiliary Codes: R-0, R-1, and some S-1 This data applies t o units with an 8 l/min w at er v al v e . The 8 l/min water v alv e is par t number 3U0 1 1 1 -02 and has J248-032 stamped on the side of the val ve f acing the rear of the unit. SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for [...]

73 1 4. KM-1 60 1SRH with URC-21F Auxiliary Codes: some S-1 and S-2 and L ater This data applies t o units with a 1 5 l/min or 1 1 l/min water v alv e. The 1 5 l/min wat er v al v e is par t number 3U0 1 1 1 -0 1 and has J248-030 stamped on the side of the val ve f acing the r ear of the unit. The 1 1 l/min wat er val v e is either par t number 4A1[...]

74 1 5. KM-1 60 1SRH with URC-22F Auxiliary Codes: S-2 and L ater This data applies t o units with an 1 1 l/min wat er v alv e. The 1 1 l/min water v alv e is either par t number 4A1 1 7 6-04 or 4A5251 -04 and has the par t number stamped on the side of the v al v e f acing the front of the unit. SPECIFICATION SHEE T AC SUPPLY VOLTAGE 208-230/60/1 [...]

75 1 6. KM-1 60 1SRH3 with URC-21F Auxiliary Codes: R-0, R-1, and some S-1 This data applies t o units with an 8 l/min w at er v al v e . The 8 l/min water v alv e is par t number 3U0 1 1 1 -02 and has J248-032 stamped on the side of the val ve f acing the rear of the unit. SPECIFICATION SHEE T AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 7.9 A (5 Min. [...]

76 1 7 . KM-1 60 1SRH3 with URC-21F Auxiliary Codes: some S-1 and S-2 and L ater This data applies t o units with a 1 5 l/min or 1 1 l/min water v alv e. The 1 5 l/min wat er v al v e is par t number 3U0 1 1 1 -0 1 and has J248-030 stamped on the side of the val ve f acing the r ear of the unit. The 1 1 l/min wat er val v e is either par t number 4[...]

77 1 8. KM-1 60 1SRH3 with URC-22F Auxiliary Codes: S-2 and L ater This data applies t o units with an 1 1 l/min wat er v alv e. The 1 1 l/min water v alv e is either par t number 4A1 1 7 6-04 or 4A5251 -04 and has the par t number stamped on the side of the v al v e f acing the front of the unit. SPECIFICATION SHEE T AC SUPPLY VOLTAGE 208-230/60/3[...]

78 1 9. KM-1 90 0SAH SPECIFICATION SHEET AC SUPPLY VOLTAGE 208- 230/60/1 (3 wire with neutral 115V) AMPERAGE 14.4 A (5 Min. Freeze AT 104°F / W T 80°F) MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & W ATER CO NSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2670(4.1) 2480( 3.2) W AT ER gal./24HR (gal./100 lbs.) 293(18.[...]

79 20. KM-1 90 0SAH3 SPECIFICATION SHEET AC SUPPLY VOLTAGE 208- 230/60/3 AMPERAGE 8.59 A (5 Min. Freeze AT 104°F/W T 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & W AT ER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2610(4.1) 2510(3.2) W AT ER gal./24HR (gal./100 lbs.) 260(17.0) 548(29.5) ICE PRODUCTIO N P[...]

80 21 . KM-190 0SWH SPECIFICATION SHEET AC SUPPLY VOLTAGE 208- 230/60/1 (3 wire wi th neutral 115V) AMPERAGE 12.5 A (5 Min. Freeze AT 104°F/W T 80°F) MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & W AT ER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2390(3.1) 2330(3.0) POTABLE W AT ER gal./24HR (gal./100 lbs.) 34[...]

81 22. KM-1 90 0SWH3 SPECIFICATION SHEET AC SUPPLY VOLTAGE 208- 230/60/3 AMPERAGE 8.4 A (5 Min. Freeze AT 104°F/ W T 80°F) MINIMUM CIRCUIT AMPACIT Y 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & W ATER CO NSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2490(3.3) 2410(3.2) POTABLE W AT ER gal./24HR (gal./100 lbs.) 341(18.8) 584(32.0) W AT ER [...]

82 23. KM-1 90 0SRH with URC-21F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208- 230/60/1 (3 wire with neutral 115V) AMPERAGE 14.9 A (5 Min. Freeze AT 104°F/ W T 80°F) MINIMUM CIRCUIT AMPACIT Y 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & W ATER CO NSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2630(3.9) 2460(3.1) W AT ER gal./24HR (gal./100 lb[...]

83 24. KM-1 90 0SRH with URC-22F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208- 230/60/1 (3 wire with neutral 115V) AMPERAGE 14.9 A (5 Min. Freeze AT 104°F/ W T 80°F) MINIMUM CIRCUIT AMPACIT Y 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & W ATER CO NSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2790(4.09) 2500(3.23) W AT ER gal./24HR (gal./100 [...]

84 25. KM-1 90 0SRH3 with URC-21F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 11.0 A ( 5 Min. Freeze AT 104°F / W T 80°F) MINIMUM CIRCUIT AMPACIT Y 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & W ATER CO NSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2840( 4.1) 2680(3.3) W AT ER gal./24HR (gal./100 lbs.) 332( 20.0) 590(30.0)[...]

85 26. KM-1 90 0SRH3 with URC-22F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 11.0 A (5 Min. Freeze AT 104°F/W T 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & W ATER CO NSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2780(4.04) 2640(3.33) W AT ER gal./24HR (gal./100 lbs.) 345(20.9) 634(33.3) ICE[...]

86 27 . KM-21 0 0SWH3 SPECIFICATION SHEET AC SUPPLY VOLTAGE 208- 230/60/3 AMPERAGE 10.5 A (5 Min. Freeze AT 104°F/W T 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & W AT ER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2860(3.35) 2740(3.14) POTABLE W AT ER gal./24HR (gal./100 lbs.) 410(20.0) 673(32.1) W AT E[...]

87 28. KM-21 0 0SRH3 with URC-22F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208- 230/60/3 AMPERAGE 12.5 A (5 Min. Freeze AT 104°F/W T 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & W ATER CO NSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 3210(4.26) 2900( 3.42) W AT ER gal./24HR (gal./100 lbs.) 382(21.1) 687(33.8) I[...]

88 29. KM-250 0SWH3 SPECIFICATION SHEET AC SUPPLY VOLTAGE 208- 230/60/3 AMPERAGE 14.2 A ( 5 Min. Freeze AT 104°F/W T 80°F) MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & W ATER CO NSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 3720(3.78) 3510(3.5) W AT ER gal./24HR (gal./100 lbs.) 459(19.4) 744(30.9) W AT ER COOLED C[...]

89 30. KM-250 0SRH3 with URC-23F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208- 230/60/3 AMPERAGE 17.7 A ( 5 Min. Freeze AT 104°F/W T 80°F) MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & W ATER CO NSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 4190(4.5) 3780(3.7) W AT ER gal./24HR (gal./100 lbs.) 416(18.6) 791(32.6) ICE [...]

90 31 . KMH-20 0 0SWH SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral 115V) AMPERAGE 12.1 A (5 Min. F reeze AT 104°F/W T 80°F) MINIMUM CIRCUIT AMPACIT Y 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & W ATER CO NSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2420(3.3) 2410(3.2) POTABLE W AT ER gal./24HR (gal./100 lbs.) [...]

91 32. KMH-20 0 0SWH3 SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 7.7 A (5 Min. F reeze AT 104°F/W T 80°F) MINIMUM CIRCUIT AMPACIT Y 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & W AT ER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2330(3.2) 2280(2.9) POTABLE W AT ER gal./24HR (gal./100 lbs.) 296(17.1) 540(29.0) W AT ER [...]

92 33. KMH-20 0 0SRH with URC-22F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral 115V) AMPERAGE 14.9 A (5 Min. Freeze AT 104°F/ W T 80°F) MINIMUM CIRCUIT AMPACIT Y 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & W ATER CO NSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2680( 3.8) 2570(3.2) W AT ER gal./24HR (gal./100 l[...]

93 34. KMH-20 0 0SRH3 with URC-22F SPECIFICATION SHEET AC SUPPLY VOLTAGE 208- 230/60/3 AMPERAGE 9.9 A (5 Min. Freeze AT 104°F/W T 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & W AT ER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (k W H/100 lbs.) 2600(3.7) 2430(3.0) W AT ER gal./24HR (gal./100 lbs.) 281(16.8) 507(26.3) ICE [...]

94 B. W iring Diagrams 1 . Diagrams without Harv est P ump Timer Rela ys ("E" and "G" Contr ol Boar ds) a) KM-1 60 1SWH, KM-1 60 1SRH, KM-1 90 0S_H, KMH-20 0 0S_H * Contr ol T ransf or mer Output 1 0.5V at 1 15V * High-P ressur e S witch W ater -Cooled Model Air and Remote Model Cut-out 384± 22 PSIG 412± 22 PSIG Cut-in 284±22[...]

95 b) KM-1 60 1SWH3, KM-1 60 1SRH3, KM-1 90 0S_H3, KM-21 0 0S_H3, KM-250 0S_H3, KMH-20 0 0S_H3 * Contr ol T ransf or mer Output 1 0.5V at 1 15V * High-P ressur e S witch W ater -Cooled Model Remote Model Cut-out 384± 22 PSIG 41 2± 22 PSIG Cut-in 284±22 PSIG 327±22 PSIG 0 0[...]

96 A uxiliar y C ode T -0, U-0 * 2. Diagrams with Harv est P ump Timer Rela ys ("G" Contr ol Boar d) a) KM-1 30 1S_H A uxiliary Code T -0, U-0 * High-P ressur e S witch W ater -Cooled Model Air and Remote Models Cut-out 384± 22 PSIG 41 2± 22 PSIG Cut-in 284±22 PSIG 327±22 PSIG 0 0 Contr ol T ransf or mer Output 1 0.5V at 1 15V[...]

97 b) KM-1 30 1S_H3 A uxiliary Code T -0, U-0 * * High-P ressur e S witch W ater -Cooled Model Air and Remote Models Cut-out 384± 22 PSIG 41 2± 22 PSIG Cut-in 284±22 PSIG 327±22 PSIG 0 0 Contr ol T ransf or mer Output 1 0.5V at 1 15V[...]

98 c) KM-1 30 1S_H A uxiliary Code U-1 and Later and KM-1 60 1SAH * * High-P ressur e S witch W ater -Cooled Model Air and Remote Models Cut-out 384± 22 PSIG 41 2± 22 PSIG Cut-in 284±22 PSIG 327±22 PSIG 0 0 Contr ol T ransf or mer Output 1 0.5V at 1 15V[...]

99 d) KM-1 30 1S_H3 A uxiliary Code U-1 and Later and KM-1 60 1SAH3 * * High-P ressur e S witch W ater -Cooled Model Air and Remote Models Cut-out 384± 22 PSIG 41 2± 22 PSIG Cut-in 284±22 PSIG 327±22 PSIG 0 0 Contr ol T ransf or mer Output 1 0.5V at 1 15V[...]

10 0 e) KM-1 40 0SWH-M * * High-P ressur e S witch W ater -Cooled Model Cut-out 384± 22 PSIG Cut-in 284±22 PSIG 0 Contr ol T ransf or mer Output 1 0.5V at 1 15V[...]

101 f) KM-1 40 0SWH3-M * * High-P ressur e S witch W ater -Cooled Model Cut-out 384± 22 PSIG Cut-in 284±22 PSIG 0 Contr ol T ransf or mer Output 1 0.5V at 1 15V[...]