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Master Bilt 74 manual

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Table of contents for the manual

  • Page 1

    1 BMG/TMG -27, 48, 52, 74, 80 LAE CONTROLL ER Install ation & Op erations Manual Mast er-Bilt Products 908 Highway 15 North New A lbany , MS 38652 Phone: (800) 684-8988 PN 075-90000 R ev 4-2 6-11[...]

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    3 TABLE OF CONTENTS INTRO DUCTIO N………………………………….… ………………………………………… ………………………4 STORE CO NDITIO NS…………………………….…………… ….…..……………………………………… …….. 4 WARNING LA BELS A ND SA FETY INSTRUCT IONS………..…..?[...]

  • Page 4

    4 INTRODUCTION Thank y ou for purchas ing a Master-Bilt cabinet. This m anual contains important instr uctions for installing, using, and servicing a Master-Bilt BM G/TM G c ase. A parts list is included with this manual. Read all these documents carefully before installing or servicing y our equipment. STORE CONDITI ONS The Master- Bilt BMG/T M G [...]

  • Page 5

    5 CAUTION! GROUND REQUIRED FOR SAFE OPERATION WA RNING LA BELS A ND SA FE TY INSTRUCTIONS This symbol is the saf ety -alert symbol. W hen you see this sy mbol on your cabinet 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 recomm ended precaut[...]

  • Page 6

    6 PRE-INSTALLA TION INSTRUCTIONS INSPECTION F OR SHIPPING DA MAGE You are responsible for filing all freight claims with the del ivering truck line. Inspect all cartons and c rates for dam age as soon as they arrive. If damage is noted to shipping crates or c artons or if a s hortage is found, note this on the bill of lading (all copies) prior to s[...]

  • Page 7

    7 ELECTRICAL WARNING Before servicing electrical com ponents in t he case or the doors or d oor frames make sure all pow er to case is off. Always use a qualified technician. NOT ICE For models w ith electron ic ballast only: For replacement ballast, u se only ballast that complies with UL Type CC rating if u nit is equipp ed with electronic ballas[...]

  • Page 8

    8 LEG A ND CONDENSATE PA N INST A L LA T ION FO R TO P MO UNT CABINETS ONLY 1. Screw legs into existing crate m ounting holes. 2. Mount pan and bracket as sem bly to rear of cabinet with 2 large sheet metal scr ews (supplied). Be sure pan is located directly under cabinet drain DOORS The BM G/T M G cabinets have Anthony glass doors that are equippe[...]

  • Page 9

    9 MASTER-B ILT ELECTRONIC REFRIGERA TION CONTROL Display Lay-out Compressor W hen power is first turned on to the control, the LED indicator for the T herm ostat output will go through the start-up delay . After a one-minute delay the com pressor com es on. The LED indicator stays on whil e com press or relay is energized. Display wil l show actual[...]

  • Page 10

    10 HOW TO CHANGE THE SETPO INT HOW TO CHANGE a parame ter value LIST OF PA RAMET ERS Here is a list of the param eters the value of which can be changed in the program m ing mode, as well as their ranges. Display Symbol Parameter Range Mast er-Bilt’s BM G/TM G Sett ing SP Tem perature Set Point SPL…SPH 35 °F HYS Tem perature Diff erential 1 to[...]

  • Page 11

    11 SERVICE INSTRUCTIONS 1. High head pressure and high back pressure: A. Conden ser coil clogged or restric ted B. Conde nser fan m otor def ective. C. Air discharge in rear of c abinet restricted. 2. Low back press ure and low head pressure: A. Restriction in sy stem . B. Refrigerant undercharged. C. Leak in system 3. Pressure norm al – cabinet [...]

  • Page 12

    12 TEM PERA TURE SENSORS AND FA N M OT OR REPLA CEMENT Before making any change, technician should: 1. Disconnect power to the cabinet 2. Rem ove screws from venturi and pull down To change a tem perature sens or (cabinet zone sensor or defros t term ination sensor), sim ply disc onnect the sensor wires from the controller and replace the new senso[...]

  • Page 13

    13 MA STE R-BILT PA RT LIST The table below gives Master-Bilt part numbers. Us e this chart when ordering replacem ent parts for your BMG /TM G cabinets. Alway s Advise Cabinet Serial Number W hen Ordering Parts Description BM G/T M G-27 BMG /TM G-48 BMG /TM G-52 BM G/T MG -74 BM G/TM G- 80 Accum ulator 09-00812 09-00813 09-00813 09-00812 09 -00812[...]

  • Page 14

    14 SA LE A ND DI SPOSAL OWNER RESPONSIBILIT Y If you sell or gi ve away your Master-Bilt cabinet y ou m ust m ake s ure that all safety l abels and the Installation - Servi ce Manual are included wi th it. If y ou need replacement labels or m anuals, Master- Bilt w ill provide th em free. Contact the custom er service departm ent at Master-Bilt at [...]

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