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9

HOW TO CHANGE THE SETPOINT 

 

 

 
 
 
 
 
 

HOW TO CHANGE a parameter value 

 
 
 
 

 
 
 
 
 
 
LIST OF PARAMETERS  

Here is a list of the parameters the value of which can be changed in the programming mode, as well as their ranges.  

Display 

Symbol 

Parameter 

Range 

Master-Bilt’s 

IM-23-HGP Setting 

SP 

Temperature Set Point 

SPLCSPH 

18

°F

 

HYS 

Temperature Differential 

1 to 255°F 

7

°

 

SPL 

Minimum Temperature limit setpoint 

-50CSPH 

16

°F

 

SPH 

Maximum Temperature limit setpoint 

SPHC120° 

50

°F

 

AHA 

High Temperature Alarm 

-50C120° 

32°F

 

ALA 

Low Temperature Alarm 

50C120° 

0

°F

 

ATD 

Temperature Alarm Delay 

0C120min 

30min 

DFR 

Number of Defrost Cycle per 24hr 

0C24 

DLI 

Defrost Termination Temperature 

-50C120° 

45 

DTO 

Maximum Defrost Duration 

1C120min 

30min 

 

 

 

ELECTRICAL CONNECTIONS 

The  controller  is  provided  with  a  screw  terminal  block  to  connect  cables  with  a  cross  section  up  to  2,5  mm

2

.  Before 

connecting  cables  make  sure  the  power  supply  complies  with  the  control’s  requirements.  Separate  the  probe  cables 
from the power supply cables, the outputs and the power connections. Do not exceed the maximum current allowed on 
each relay, in case of heavier loads use a suitable external relay or contactor’s. 
 

 

PROBE CONNECTIONS  

The  probes  shall  be  mounted  with  the  bulb  upwards  to  prevent  damage  due  to  casual  liquid  infiltration.  It  is 
recommended  to  place  the  thermostat  probe  at  the  warmest  loacation  of  return  air  streams  to  correctly  measure  the 
average room temperature. Place the defrost termination probe among the evaporator fins in the coldest place, where 
most  ice  is  formed,  far  from  heaters  or  from  the  warmest  place  during  defrost,  to  prevent  premature  defrost 
termination. 

  

 

 

 

Содержание IM-23-HGP

Страница 1: ...Installation Operations Manual LAE AT2 5 Controller Master Bilt Products 908 Highway 15 North New Albany MS 38652 Phone 800 684 8988 ...

Страница 2: ...2 ...

Страница 3: ...3 ...

Страница 4: ...999999999999999999 7 OPERATION 7 MANUAL DEFROSTS 7 HOW TO CHANGE SETPOINTS 8 LIST OF PARAMETERS 8 ELECTRICAL CONNECTIONS 8 PROBE CONNECTIONS 8 SERVICE INSTRUCTIONS 9 TROUBLE SHOOTING 10 CHECK LIST 10 CABINET CLEANING PROCEDURES 11 ICE MERCHANDISER MONTHLY CHECKLIST 11 PARTS LIST 12 SALE AND DISPOSAL9999999999999999999999 9 99999999999999999 13 WIRING DIAGRAM9999999999999999999999999999999999999999...

Страница 5: ...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 familia...

Страница 6: ...88 Fax 866 882 7629 GENERAL INSTRUCTIONS 1 Be sure the ice merchandiser is properly installed by competent service people 2 Keep the ice merchandiser clean and sanitary so it will meet your local sanitation codes Clean the unit with a mild detergent and water then rinse 3 Rotate your stock so that older stock does not accumulate 4 Do not place product in the ice merchandiser when it is soft or par...

Страница 7: ...or door frames make sure all power to case is off Always use a qualified technician Check voltage and amps drawn on Page 12 13 to determine proper line and fuse or circuit breaker size Check power supply for low voltage If voltage reads 115 with no load and it drops below 100 when the compressor tries to start it is an indication of too small supply wiring or too long to run It is recommended that...

Страница 8: ...rost and the 2 minute drip time has passed There is 2 minutes delay after a defrost before the fan comes on If the Evaporator temperature is 35 o F or below the controller will override the fan delay FAN LED indicator is on while FAN relay is energized Defrost The control uses time defrost with 4 defrost per day The defrost scheme can be re set the for special applications During defrost the displ...

Страница 9: ... CONNECTIONS The controller is provided with a screw terminal block to connect cables with a cross section up to 2 5 mm 2 Before connecting cables make sure the power supply complies with the control s requirements Separate the probe cables from the power supply cables the outputs and the power connections Do not exceed the maximum current allowed on each relay in case of heavier loads use a suita...

Страница 10: ...l blocked with frost see 4 B Refrigerant undercharged C Control set too warm 4 Ice merchandiser not cycling coil blocked with frost A Defective temperature controller or improper settings B Refrigerant overcharged C Location too hot D Condenser clogged E Condenser fan motor defective F For freezer defrost heater not operating G Air leakage into ice merchandiser due to open door or faulty door seal...

Страница 11: ...or error codes Repair or adjust the control Checked expansion valve for Freezers Improper controls adjusted Clean or replace What is Evaporator Superheat Evaporator Superheat too high Adjust expansion valve to lower Superheat setting Where is condensing Unit located Location too warm Ventilate area or change to cooler Air leaks or doors location Is Box well sealed from air penetrations Wall panels...

Страница 12: ... to access the condenser coil and compressor housing Care should again be taken not to unnessarily soak fan motors electrical connections time clock ballasts or any wire raceway Check the condenser coil to insure that it is not clogged with dirt dust or lint A dirty or clogged condenser coil will result in diminished performance of the cabinet The condenser should be brushed with a plastic bristle...

Страница 13: ...d 25 01377 Wall Gard 25 01380 drain flanges with adapter 11 01895 drain line heater wire 17 00404 heater clip 17 09431 drier 09 09864 grill assembly white WS black BS 486 280 WS cap tube 11 01450 heater safety 19 01164 vinyl tube 11 00876 coil defrost heater 17 09568 electronic controller 19 14243 cabinet sensor T1 19 14244 evaporator sensors T2 19 14245 glass door LH 31 03331 leg leveler 27 00592...

Страница 14: ...nstallation Service Manual are included with it If you need replacement labels or manuals Master Bilt will provide them free Contact the customer service department at Master Bilt at 800 647 1284 The customer service department at Master Bilt should be contacted at the time of sale or disposal of your cabinet so records may be kept of its new location ...

Страница 15: ...15 DESCRIPTION DATE MODEL S DRAWN BY IM 23GB IM 23HGP BGH 4 29 14 LAE ...

Страница 16: ...16 ...

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