Instruction/ maintenance manual of the product MRH Hoshizaki
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Hoshizaki “A Superior Degr ee of Reliability” www .hoshizaki.com Models KML-250MAH, MWH KML-351MAH, MWH KML-451MAH, MWH KML-631MAH, MWH, MRH Low-Profile Modular Crescent Cuber Hoshizaki America, Inc.
2 W ARNING Only quali ed ser vice t echnicians should install and service 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 installation or service should be under tak en until the technician has thoroughl y read this Instruction Manual.
3 CONTENTS Impor tant S af et y Inf or mation ................................................................................................. 4 I. Specications ......................................................................................
4 Impor tant Saf ety 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 to the appliance , or damage t o pr oper ty . W ARNING Indicates a hazar dous situation which could r esult in death or serious injury .
5 W ARNING, continued • Children should be pr oper l y super vised around the appliance . • Do not climb , stand, or hang on the appliance or allow childr en or animals to do so . Serious injur y could occur or the appliance could be damaged. • Do not use combustib le spra y or place v olatile or ammab le substances near the appliance.
6 I. Specications A. Electrical and R efrigerant Data The rating label and nameplat e pr o vide electrical and refrigerant data. The rating label can be seen by r emoving the fr ont panel. The nameplat e is locat ed on the r ear panel. For cer tication marks, see the nameplat e.
7 3. KML -451M_H Model Number KML -451MAH KML -451MWH A C Suppl y V oltage 1 1 5/60/1 1 1 5/60/1 Compr essor 1 1 5-1 20V 7 .9RLA 54.5LRA 1 1 5-1 20V 9.0RLA 70LRA P ump 1 20V 0.5FLA 23W 1 20V 0.5FLA 23W Fa n 1 20V 0.85FLA 50W --- --- --- Other 1 1 5-1 20V 0.
8 NO TICE • Allow 6" (1 5 cm) clearance at r ear , sides, and t op for pr oper air circulation and ease of maintenance and/or ser vice should the y be required. • The ice stor age bin opening must match the bot tom opening as in the illustration.
9 2. W ater -Cooled Models (MWH) Units: mm [in.] NO TICE • Allow 6" (1 5 cm) clearance at r ear , sides, and t op for pr oper air circulation and ease of maintenance and/or ser vice should the y be required. • The ice stor age bin opening must match the bot tom opening as in the illustration.
10 3. Remot e Models (MRH) NO TICE • Allow 6" (1 5 cm) clearance at r ear , sides, and t op for pr oper air circulation and ease of maintenance and/or ser vice should the y be required. • The ice stor age bin opening must match the bot tom opening as in the illustration.
11 Units: mm [in.] 4. Remot e Condenser Unit URC-9F (use with KML -631MRH) Rear To p Icemaker Model URC-9F Heat of Rejection A T 90°F (32°C) WT 70°F (21°C) KML -631MRH 1 0,300 BTU/hr NO TICE Allow 24" (61cm) clear ance at fr ont and rear f or proper air cir culation and ease of maintenance and/or service should they be r equired.
12 II. Installation and Operating Instr uctions W ARNING • The appliance must be installed in accor dance with applicable national, stat e, and local codes and regulations .
13 • Check that the r efr iger ant lines do not rub or touch lines or other surf aces, and that the f an b lade (if applicab le) turns freel y . • Check that the compr essor is snug on all mounting pads. • The icemaker can be inst alled on a dispenser unit or ice st orage bin.
14 D . Set up 1 . Dispenser Unit/Ice Stor age Bin and Icemak er Set up W ARNING The installer must ensur e the dispenser unit/ice storage bin is compatib le with the icemaker , and the dispenser unit/ice storage bin and icemak er are pr operly at tached and secured.
15 Int entionally Lef t Blank.
16 E. Electrical Connection W ARNING F or All Models • Electrical connection must be hard-wir ed and must meet national, stat e, and local electrical code requir ements. F ailure t o meet these code requir ements could r esult in death, electric shock, serious injur y , re , or damage.
17 KML -250M_H KML -351M_H KML -451M_H KML -631M_H 115-120/60/1 W AR NING ELECTRICAL CONNECTION THIS UNIT MUST BE GROUNDED Failure to properly ground or wire this unit could result in death, serious injury, or severe damage to the icemaker.
18 F . W ater Suppl y and Dr ain Connections See F igs. 4 thr ough 8 W ARNING W ater suppl y and drain connections m ust be installed in accor dance with applicable national, stat e , and local r egulations. NO TICE • Nor mal oper ating w ater t emperature should be within 45°F t o 90°F (7°C to 32°C).
19 1 . Icemaker Icemaker W ater Supply Inlet Minimum Icemak er W ater Supply Line Size Icemaker Dr ain Outlet Minimum Icemak er Drain Line Size 1/2" F emale Pipe Thread (FPT) 1/4" Nominal ID.
20 2. W at er-Cooled Condenser a) KML -250/351/451MWH (1) Connection to an Open Dr ain S ystem Condenser W ater Supply Inlet Minimum Condenser W ater Supply Line Size Condenser Drain Outlet Minimum Co.
21 (2) Connection to a Closed Loop S yst em Condenser W ater Supply Inlet Minimum Condenser W ater Supply Line Size Condenser Ret urn Outlet Minimum Condenser Ret urn Line Size 1/2" F emale Pipe .
22 b) KML -631MWH (1) Connection to an Open Dr ain S ystem Condenser W ater Supply Inlet Minimum Condenser W ater Supply Line Size Condenser Drain Outlet Minimum Condenser Drain Line Size 1/2" F .
23 (2) Connection to a Closed Loop S yst em Condenser W ater Supply Inlet Minimum Condenser W ater Supply Line Size Condenser Ret urn Outlet Minimum Condenser Ret urn Line Size 1/2" F emale Pipe .
24 G. Installation of Remot e Condenser Unit W ARNING • Installation of r emot e condenser unit must be perf or med by pr oper ly trained and EP A -cer tied service personnel. • The remot e condenser unit must be installed in accor dance with applicab le national, stat e , and local codes and r egulations.
25 2. Checks Bef or e Installation 1) Remo ve the shipping car ton, tape , and packing mat erial. 2) Check that the r efr igerant lines do not rub or touch lines or other surf aces, and that the f an b lade mo v es fr eel y . 3. Setup 1) Assemble 2 sets of legs using the legs , bolts, and nuts pr ovided.
26 5. Line Set Installation P r echar ged f act or y line sets, a vailab le as optional equipment fr om Hoshizaki America, are r ecommended. F or details , see "II.G.5.a) F act or y Line Set Installation." F ield f abricated line sets ar e allowed.
27 3) Ev acuat e thr ough the Schrader access por ts on the P ar ker quic k connect couplings and charge with R-404A r efr igerant v apor t o a pr essur e of 1 5 to 30 PSIG.
28 F ig. 1 3 F ig. 1 2 F emale Coupling Discharge Line (Insulat ed) See "II.G.4 Line Set Size and Refrigerant Char ge" f or details. Remot e Condenser Unit Liquid Line (Insulated) See "II.G.4 Line Set Size and Refrigerant Char ge" f or details.
29 6. Electrical Connection W ARNING • Electrical connection must meet national, stat e, and local electrical code requir ements. F ailure to meet these code r equirements could r esult in death, electric shock, serious injur y , re , or damage.
30 3) Install a gr ound wire fr om the icemak er f an motor junction bo x to the r emote condenser unit junction bo x. Use wire of an appr opriate g age and outdoor rating. 4) Install line and neutral wir es from the f an motor leads in the icemak er f an motor junction bo x t o the leads in the r emot e condenser unit junction bo x.
31 H. F inal Chec klist W ARNING CHOKING HAZARD: Ensure all components , fast eners, and thumbscr ews are secur ely in place af ter inst allation. Make sur e that none ha v e f allen into the dispenser unit/ice stor age bin.
32 I. Star t up W ARNING All par ts are f act or y -adjusted. Improper adjustments ma y adver sel y af f ect saf et y , perf ormance, component lif e , and warr anty cov erage . NO TICE • If the icemaker is turned of f, w ait f or at least 3 minutes bef ore r estar ting the icemaker t o pre vent damage t o the compr essor .
33 III. Maintenance The appliance must be maintained in accor dance with the instr uction manual and labels pro vided. Consult with y our local Hoshizaki Certied Service Represent ativ e about maintenance service. W ARNING • Only quali ed ser vice technicians should ser vice the appliance.
34 B. Cleaning and Sanitizing Instructions The icemaker m ust be cleaned and sanitiz ed at least once a y ear . Mor e fr equent cleaning and sanitizing ma y be r equir ed in some w at er conditions. W ARNING • T o pre vent injury to individuals and damage t o the icemak er , do not use ammonia type cleaners.
35 9) P our the cleaning solution into the w ater tank. 1 0) Mov e the ser vice switch t o the "W A SH" position. 1 1) Replace the fr ont insulation panel and the fr ont panel in their corr ect positions . 1 2) T ur n on the pow er suppl y to st ar t the washing pr ocess.
36 4) Mov e the ser vice s witch t o the "W ASH" position. 5) Replace the fr ont insulation panel and the front panel in their corr ect positions . 6) T ur n on the power suppl y to star t the sanitizing process . 7) T ur n of f the po wer suppl y af ter 1 5 minut es.
37 IV . Pr epar ing the Icemak er f or Per iods of Non-Use NO TICE • When st oring the icemaker f or an ext ended time or in sub-freezing t emperatur es, f ollo w the instructions below t o pr e v ent damage.
38 3) Open the condenser wat er supply line drain v alv e . If connected t o a closed loop s yst em, also open the condenser return line drain v al v e. 4) At tach a compressed air or carbon dio xide supply t o the condenser water suppl y line drain v alv e .
39 V . 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.
40 HOSHIZAKI AMERICA, INC. 618 Hwy . 74 S., Peachtree Cit y, GA 30269 USA TEL (770) 487-2331 F AX (770) 487-3360 www .hoshizaki.com 1A3085-010.
An important point after buying a device Hoshizaki MRH (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Hoshizaki MRH yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Hoshizaki MRH - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Hoshizaki MRH you will learn all the available features of the product, as well as information on its operation. The information that you get Hoshizaki MRH will certainly help you make a decision on the purchase.
If you already are a holder of Hoshizaki MRH, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Hoshizaki MRH.
However, one of the most important roles played by the user manual is to help in solving problems with Hoshizaki MRH. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Hoshizaki MRH along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
