Master Bilt IM-23-HGP Bedienungsanleitung

Installation & Operations Manual

LAE – AT2-5 Controller

Master-Bilt Products

90 Highway 15 North

New Albany, MS 3 652

Phone: ( 00) 6 4- 9

TABLE OF CONTENTS

INTRODUCTION ................................................................................................................................................................ 4

STORE CONDITIONS ........................................................................................................................................................ 4

WARNING LABELS AND SAFETY INSTRUCTIONS ....................................................................................................... 4

NOTICE .............................................................................................................................................................................. 5

GENERAL INSTRUCTIONS .............................................................................................................................................. 5

MECHANICAL .................................................................................................................................................................... 6

ELECTRICAL ..................................................................................................................................................................... 6

MASTER-BILT ELECTRONIC REFRIGERATION CONTROL...7

OPERATION.......................................................................................................................................................... 7

MANUAL DEFROSTS ........................................................................................................................................... 7

HOW TO CHANGE SETPOINTS .......................................................................................................................... 8

LIST OF PARAMETERS ....................................................................................................................................... 8

ELECTRICAL CONNECTIONS .........................................................................................................................................

PROBE CONNECTIONS ...................................................................................................................................................

SERVICE INSTRUCTIONS ................................................................................................................................................ 9

TROUBLE SHOOTING .................................................................................................................................................... 10

CHECK LIST .................................................................................................................................................................... 10

CABINET CLEANING PROCEDURES ............................................................................................................................ 11

ICE MERCHANDISER MONTHLY CHECKLIST ............................................................................................................ 11

PARTS LIST ..................................................................................................................................................................... 12

SALE AND DISPOSAL....13

WIRING DIAGRAM...14

INTRODUCTION

Thank y u f r purchasing Master-Bilt Ice Merchandiser IM-23-HGP. This manual c ntains imp rtant instructi ns f r

installing, using, cleaning, and servicing ind r Ice Merchandiser. A parts list is included with this manual. Read all

d cuments carefully bef re installing r servicing y ur equipment.

STORE CONDITIONS

The Ice Merchandisers are designed t perate in a c ntr lled envir nment. The temperature sh uld be at 75°F r

bel w f r an ind r ice merchandiser, with relative humidity f 55% r less. At higher temperature r humidity

c nditi ns, the perf rmance f these merchandisers may be affected and the capacity diminished.

The Ice Merchandiser sh uld n t be p siti ned where it is directly exp sed t rays f the sun r near a direct s urce f

radiant heat r airfl w. This will adversely affect the ice merchandiser and will result in p r perf rmance.

If this ice merchandiser is t be l cated against a wall, there sh uld be at least 6” space between the wall and the back

f the unit. This space will all w f r the circulati n f air behind the ice merchandiser, which will prevent c ndensati n

n the exteri r surfaces.

WARNING LABELS AND SAFETY INSTRUCTIONS

This symbol is the safety-alert symbol. When you see this symbol on your ice merchandiser or in

this manual, be alert to the potential for personal injury or damage to your equipment. Be sure you

understand all safety messages and always follow recommended precautions and safe operating

practices.

NOTICE TO EMPLOYERS

You must make sure that everyone who installs, uses or services your cabinet is thoroughly familiar with all

safety information and procedures.

Imp rtant safety inf rmati n is presented in this secti n and thr ugh ut the manual. The f ll wing signal w rds are

used in the warnings and safety messages:

DANGER: Severe injury r death will ccur if y u ign re the message.

WARNING: Severe injury r death can ccur if y u ign re the message.

CAUTION: Min r injury r damage t y ur cabinet can ccur if y u ign re the message.

NOTICE: This is imp rtant installati n, perati n r service inf rmati n. If y u ign re the message, y u may

damage y ur cabinet.

The warning and safety labels shown throughout this manual are placed on your Master-Bilt Products cabinet

at the factory. Follow all warning label instructions. If any warning or safety labels become lost or damaged,

call your customer service department at ( 00)6 4- 9 for replacements

CAUTION!

GROUND REQUIRED

FOR SAFE OPERATION

This label is attached on the cabinet

back and in the machine compartment.

This label is located on the power cord.

NOTICE

Read this manual before installing, cleaning, or performing any maintenance on your cabinet. Keep the

manual and refer to it before doing any service on the equipment. Failure to do so could result in personal

injury or damage to the cabinet.

DANGER

Improper or faulty hook-up of electrical components on the refrigeration units can result in

severe injury or death. All electrical wiring hook-ups must be done in accordance with all applicable local,

regional or national standards.

NOTICE

Installation and service of the refrigeration and electrical components of the cabinet must

be performed by a refrigeration mechanic and/or a licensed electrician.

The p rti ns f this manual c vering refrigerati n and electrical c mp nents c ntain technical instructi ns intended

nly f r pers ns qualified t perf rm refrigerati n and electrical w rk. This manual cann t c ver every installati n, use

r service situati n. If y u need additi nal inf rmati n, call r write us:

Cust mer Service Department

Master-Bilt Products

Highway 15 N rth

New Albany, MS 38652

Ph ne (800) 684-8988

Fax (866) 882-7629

GENERAL INSTRUCTIONS

1. Be sure the ice merchandiser is pr perly installed by c mpetent service pe ple.

2. Keep the ice merchandiser clean and sanitary s it will meet y ur l cal sanitati n c des. Clean the unit with a mild

detergent and water, then rinse.

3. R tate y ur st ck s that lder st ck d es n t accumulate.

4. D n t place pr duct in the ice merchandiser when it is s ft r partially thawed. Als , pr duct sh uld n t be put in

the ice merchandiser f r at least 6 h urs after it is started.

5. St ck ice merchandiser as quickly as p ssible, exp sing nly small quantities t c nditi n temperatures f r sh rt

peri ds f time.

NOTICE TO STORE OWNERS / MANAGERS

Moisture or liquid around or under the cabinet is a potential slip/fall hazard for persons walking by or working

in the general area of the cabinet. Any cabinet malfunction or housekeeping problem that creates a slip/fall

hazard around or under the cabinet should be corrected immediately.

If m isture r liquid is bserved ar und r under a Master-Bilt Ice Merchandiser, an immediate investigati n sh uld be

made by qualified pers nnel t determine the s urce f the m isture r liquid. The investigati n sh uld determine if the

ice merchandiser is malfuncti ning r if there is a drainpipe leaking.

MECHANICAL

Rem ve fr nt grille and check refrigerati n lines t see that they are free (n t t uching each ther r c mpress r).

Spin c ndenser fan blade t see that it is free.

The c mpress r is hermetic s it is internally spring m unted and ready t run.

ELECTRICAL

WARNING

Before servicing electrical components in the case or the doors or door frames make sure all power to case is

off. Always use a qualified technician.

Check v ltage and amps drawn n (Page 12-13) t determine pr per line and fuse r circuit breaker size. Check p wer

supply f r l w v ltage. If v ltage reads “115” with n l ad, and it dr ps bel w “100” when the c mpress r tries t start,

it is an indicati n f t small supply wiring r t l ng t run.

It is rec mmended that a separate circuit be run f r each ice merchandiser t prevent an ther appliance fr m bl wing

the fuse r breaker, causing l ss f pr duct.

MASTER-BILT ELECTRONIC REFRIGERATION CONTROL

Display Lay- ut

OPERATION

Compressor When p wer is first turned n the c ntr ller will g thr ugh the start-up. After the start-up delay the

c mpress r c mes n. The LED indicat r stays n while c mpress r relay is energized. Display will sh w actual b x

temperature. Picture ab ve is the display lay ut. The c mpress r will be cycled ff when the actual b x temperature

reaches its set p int. The COMP indicat r will be ff.

Fan The fans will run c nstantly except when a defr st is initiated, r when the evap rat r temp is ab ve the 30

When in defr st m de the fan is ff until the end f the defr st and the 2 minute drip time has passed. There is 2

minutes delay after a defr st bef re the fan c mes n. If the Evap rat r temperature is 35

F r bel w the c ntr ller

will verride the fan delay. FAN LED indicat r is n while FAN relay is energized.

Defrost The c ntr l uses time defr st with 4 defr st per day. The defr st scheme can be re-set the f r special

applicati ns. During defr st the display will sh w dEF and the defr st LED indicat r n. The c ntr l begins timing the

defr st when p wer is turned n. F ur defr st per day means it will ccur every 6 h urs. T have defr st ccur at

8am, 2pm, 8pm, and 2am then p wer up at ne f these f ur times.

MANUAL DEFROST

Defr sting my als be induced manually by keeping the defr st butt n f r 3 sec nds. Once defr st has started, the

defr st will g thr ugh a defr st and drip time pull d wn cycle.

HOW TO CHANGE THE SETPOINT

HOW TO CHANGE a parameter value

LIST OF PARAMETERS

Here is a list f the parameters the value f which can be changed in the pr gramming m de, as well as their ranges.

Display

Symbol Parameter Range

Master-Bilt’s

IM-23-HGP Setting

SP Temperature Set P int SPLSPH 18°F

HYS Temperature Differential 1 t 255°F 7°

SPL Minimum Temperature limit setp int -50SPH 16°F

SPH Maximum Temperature limit setp int SPH120° 50°F

AHA High Temperature Alarm -50120° 32°F

ALA L w Temperature Alarm 50120° 0°F

ATD Temperature Alarm Delay 0120min 30min

DFR Number f Defr st Cycle per 24hr 024 4

DLI Defr st Terminati n Temperature -50120° 45

DTO Maximum Defr st Durati n 1120min 30min

ELECTRICAL CONNECTIONS

The c ntr ller is pr vided with a screw terminal bl ck t c nnect cables with a cr ss secti n up t 2,5 mm

. Bef re

c nnecting cables make sure the p wer supply c mplies with the c ntr l’s requirements. Separate the pr be cables

fr m the p wer supply cables, the utputs and the p wer c nnecti ns. D n t exceed the maximum current all wed n

each relay, in case f heavier l ads use a suitable external relay r c ntact r’s.

PROBE CONNECTIONS

The pr bes shall be m unted with the bulb upwards t prevent damage due t casual liquid infiltrati n. It is

rec mmended t place the therm stat pr be at the warmest l acati n f return air streams t c rrectly measure the

average r m temperature. Place the defr st terminati n pr be am ng the evap rat r fins in the c ldest place, where

m st ice is f rmed, far fr m heaters r fr m the warmest place during defr st, t prevent premature defr st

terminati n.

SERVICE INSTRUCTIONS

1. High head pressure and high back pressure:

A. C ndenser c il cl gged r restricted

B. C ndenser fan m t r defective.

C. Air discharge in rear f cabinet restricted.

2. L w back pressure and l w head pressure:

A. Restricti n in system.

B. Refrigerant undercharged.

C. Leak in system

3. Pressure n rmal – cabinet warm:

A. C il bl cked with fr st (see #4).

B. Refrigerant undercharged.

C. C ntr l set t warm.

4. Ice merchandiser n t cycling – c il bl cked with fr st:

A. Defective temperature c ntr ller, r impr per settings.

B. Refrigerant vercharged.

C. L cati n t h t.

D. C ndenser cl gged.

E. C ndenser fan m t r defective.

F. F r freezer, defr st heater n t perating.

G. Air leakage int ice merchandiser due t pen d r r faulty d r seal.

5. C mpress r starts and runs – but cycles n verl ad:

A. L w v ltage

B. Relay defective.

C. Overl ad defective.

D. High head pressure (see #1).

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