Master Bilt Refrigerator MPM 72 User Manual

Installation & Operations Manual  
Master-Bilt Products  
908 Highway 15 North  
New Albany, MS 38652  
Phone: (800) 684-8988  
PN 071-90000  
Rev 03/06/08  
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TABLE OF CONTENTS  
INTRODUCTION………………………………….……………………………………………………………………4  
STORE CONDITIONS / LOCATION..………….…..………………………………………………………………..4  
WARNING LABELS AND SAFETY INSTRUCTIONS………..…..……………………………………………… 5  
PRE-INSTALLATION INSTRUCTIONS………………………..…..………………………………….…………6  
Inspection for ShippingDamage……………………………………………………………….…………6  
INSTALLATION INSTRUCTIONS………………………………………………………………………………….. 6  
General Instructions………………………………………………………………………………………….6  
Thermometer Installation…………………………………………………………………………………….6  
Condensate Evaporator...……………………………………………………………………………………8  
Power Toggle Switch…...…………………………………………………………………………………… 8  
Electrical……..…………………………………………………………………………..…………………….8  
STARTING PROCEDURE…………………………………………………………………………………………….8  
FINAL CHECK LIST…………………………………………………………………………………….……………..8  
LOADING………………………………………………………………………………………………………………..9  
CLEANING……………………………………………………………………………………………………………...9  
SERVICE INSTRUCTIONS (Trouble Shooting Guide)………………………….……………………………….9  
MASTER-BILT PART NUMBERS……………………………………………………………………………………9  
ACCESSORIES LIST………………………………………………………………………………………………….10  
SALE AND DISPOSAL………………………………………………………………………………………………..11  
WIRING DIAGRAMS………….…………………………………………………………….…………………….......12  
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INTRODUCTION  
Thank you for purchasing a Master-Bilt cabinet. This manual contains important instructions for installing,  
using and servicing a Master-Bilt MPM/QMPM series open air case. Read all these documents carefully  
before installing or servicing your equipment. This manual should be left in the care of the store owner or  
manager.  
STORE CONDITIONS / LOCATION  
The Master-Bilt MPM/QMPM cases are designed to operate in the controlled environment of an air conditioned  
store. The store temperature should be at or below 75°F and a relative humidity of 55% or less. At higher  
temperature or humidity conditions, the performance of these cases may be affected and the capacity  
diminished. It is not uncommon in a newly constructed store for the temperature and humidity to be above  
design conditions. These excessive conditions may produce sweating in the case until the store is operational  
and the ambient environment is more desirable.  
The Master-Bilt MPM/QMPM should not be positioned where it is directly exposed to rays of the sun or near a  
direct source of radiant heat or air flow. No HVAC return or supply air ducts may be located near case  
openings. This will adversely affect the case air flow and will result in poor performance. Do not open windows  
or doors that will affect the case air flow. The maximum air velocity near the case air return is 50 FPM. If this  
case is to be located against a wall there should be at least a 6” space between the wall and the back of the  
case. The cabinet also requires a clearance of 10” at the top. This space will allow for the circulation of air  
behind the case.  
These cases should always be loaded properly. This unit will operate differently when loaded or unloaded.  
Consult the section of this manual that specifies loading procedures on page 6.  
A P-trap is included with each case. It is important that each case has a P-trap installed. Check drain tubing to  
insure that it is traped and routed into the condensate pan.  
NOTICE  
Read this manual before installing 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 of 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.  
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The portion of this manual covering refrigeration and electrical components contains technical instructions  
intended only for persons qualified to perform refrigeration and electrical work. This manual cannot cover every  
installation, use or service situation. If you need additional information, call or write us:  
Customer Service Department  
Master-Bilt Products  
908 Highway 15 North  
New Albany, MS 38652  
Phone: 800-684-8988  
Fax: 866-882-7629  
WARNING LABELS AND SAFETY INSTRUCTIONS  
This symbol is the safety-alert symbol. When you see this symbol 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 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.  
Important safety information is presented in this section and throughout this section and throughout the  
manual. The following signal words are used in the warnings and safety messages:  
DANGER: Severe injury or death will occur if you ignore the message.  
WARNING: Severe injury or death can occur if you ignore the message.  
CAUTION: Minor injury or damage to your cabinet can occur if you ignore the message.  
NOTICE:  
This is important installation, operation or service information. If you ignore the  
message, you may damage your 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 (662) 534-9061 for replacements.  
CAUTION!  
GROUND REQUIRED  
FOR SAFE OPERATION  
This label is located on top of the electrical control  
label and on the wiring channel.  
This label is attached to the cabinet power cord  
on models with a power cord.  
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PRE-INSTALLATION INSTRUCTIONS  
INSPECTION FOR SHIPPING DAMAGE  
You are responsible for filing all freight claims with the delivering truck line. Inspect all cartons and crates for  
damage as soon as they arrive. If damage is noted to shipping crates or cartons or if a shortage is found, note  
this on the bill of lading (all copies) prior to signing.  
If damage is discovered when the cabinet is uncrated, immediately call the delivering truck line and follow up  
the call with a written report indicating concealed damage to your shipment. Ask for an immediate inspection of  
your concealed damage item. Crating material must be retained to show the inspector from the truck line.  
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INSTALLATION INSTRUCTIONS  
GENERAL INSTRUCTIONS  
1. Be sure the equipment is properly installed by competent service people.  
2. Keep the equipment clean and sanitary so it will meet your local sanitation codes. Wipe up all spills,clean  
with water and a mild detergent, then rinse with clean water. A reservoir is provided to contain interior spills.  
Peridocially inspect reservoir and clean as needed.  
3. Rotate your stock so that older stock does not accumulate. A "First-In, First-Out" rotation practice will keep  
the products in good salable condition.  
4. Product should not be put in the case for at least 6 hours after it is started.  
5. Stock cases as quickly as possible, exposing only small quantities to store temperatures for short periods of  
time.  
6. When replacing burned out fluorescent tubes, be sure that the electrical power to the lighting circuit is  
turned off.  
INSTALLATION INSTRUCTIONS  
To comply with N.S.F. requirements, this cabinet must be mounted on casters or the base must be sealed to  
the floor with NSF listed silicone sealant. Optional casters screw into the holes from which the shipping bolts  
were removed. Minimum clearance as follows: 10” air space at top, 6” at the rear, and 0” air space at each side  
required for compliance. This space will allow for the circulation of air behind the case which will prevent  
condensation on the exterior surfaces.  
Before moving cabinet into place, route cabinet plumbing with P-trap to store drain line or install optional  
condensate pan.  
THERMOMETER INSTALLATION  
ANSI/NSF 7, requires that the provided thermometer be installed in the warmest part of the case. Testing has  
shown that the sides of the refrigerated space near the load line is the warmest, place see figure 1.1 below.  
Remove the tape backing and press the thermometer in place.  
SAFE  
PRODUCT  
LEVEL  
FIGURE 1.1  
(MPM SHOWN – Typical for QMPM)  
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CONDENSATE EVAPORATOR  
The MPM/QMPM is designed to operate in an environment of 75° ambient and 55% relative humidity. When  
the conditions are applicable for condensation such as high temperature and high humidity, a large capacity  
condensate evaporator has been installed in the MPM/QMPM to ensure proper evaporation.  
POWER TOGGLE SWITCH  
The toggle switch turns the power ON or OFF and is accessible through a slot at the back of the MPM/QMPM-  
36 and MPM/QMPM-48 cabinet.  
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 moisture or liquid is observed around or under a Master-Bilt cabinet, an immediate investigation should be  
made by qualified personnel to determine the source of the moisture or liquid. The investigation made should  
determine if the cabinet is malfunctioning or if there is a drain pipe leaking.  
ELECTRICAL  
WARNING  
Before servicing electrical components in the case make sure all power to case is off. Always use a  
qualified technician.  
STARTING PROCEDURE  
1.  
Start compressor and allow to run at least 6 hours before placing product into the MPM/QMPM.  
DURING THIS TESTING PERIOD YOU SHOULD:  
1.  
2.  
3.  
Check the temperature holding range against the the control setting.  
Check the defrost control system to see that all ice is removed from the coil during each defrost cycle.  
Check pressures.  
FINAL CHECK LIST  
A.  
Check setting of defrost timer:  
1. Verify setting of four 34 minutes defrost  
per 24 hours.  
F.  
Check condensing unit for vibrating or  
rubbing tubing. Dampen and clamp as  
required.  
B.  
C.  
Check operating pressures.  
G.  
All valves should be completeley open  
counter-clockwise.  
Check electrical requirements of unit to  
supply voltage.  
H.  
I.  
Check packing nuts on all service valves.  
D.  
E.  
Set temperature control for desired  
temperature range.  
Replace all service valve caps and latch  
unit covers  
Check system for proper defrost operation.  
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LOADING  
Do not place product in the case until 6 hours after it is started. Stock cases as quickly as possible, exposing only  
small quantities to store temperatures for short periods of time. It is important to keep stock rotated properly so  
that older stock does not accumulate. A “First-In, First-Out” rotation practice will keep the products in good salable  
condition. Avoid loading the case so that product sticks out beyond the shelves or blocking the return air grille at  
the bottom of the case. This will interfere with the air flow of the case and will result in diminished performance.  
CLEANING  
To avoid electrical shock, turn the power off before cleaning.  
The QMVM series cabinets are designed so that spills will accumulate in a drain pan. The drain pan is located  
underneath the return air grill. Be sure to clean all areas with a mild detergent and water periodically.  
SERVICE INSTRUCTIONS (Trouble Shooting Guide)  
1.  
High head pressure and high back pressure:  
A.  
B.  
Condenser coil clogged or restricted.  
Condenser fan motor defective.  
2.  
Low back pressure and low head pressure:  
A.  
B.  
C.  
Restriction in system.  
Refrigerant undercharged.  
Leak in system.  
3.  
4.  
Pressures normal – cabinet warm:  
A.  
B.  
C.  
Coil blocked with frost or ice (see #4).  
Control set too warm.  
Air screen disturbance.  
Coil blocked with frost or ice:  
A.  
B.  
C.  
D.  
Defective temperature control.  
Time clock not operating properly.  
Improper time clock setting.  
E.  
F.  
G.  
P-trap in drain not installed.  
Evaporator fan motor defective.  
Air screen disturbance.  
Ambient conditions above 75 F/55  
5.  
6.  
Compressor starts and runs – but cycles on overload:  
A.  
B.  
C.  
D.  
E.  
Low voltage.  
Dropped phase (3 phase).  
Overload protector defective.  
High head pressure (see#1).  
Relay or Capacitor defective.  
Compressor will not start – hums, but cycles on overload:  
A.  
B.  
C.  
D.  
E.  
Low voltage.  
Relay defective.  
Overload protector defective.  
Start capacitor defective.  
High head preasure (see #1)  
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MASTER-BILT PART NUMBERS  
The table below gives Master-Bilt part numbers. Use this chart when ordering replacement parts for your  
MPM/QMPM cases.  
All quantities are one each unless otherwise noted by parentheses.  
Description  
MPM-36  
QMPM-36  
17-09121  
17-09119  
17-09140  
03-14234  
09-09309  
07-13102  
15-01184  
13-00685  
MPM-48  
QMPM-48  
17-09122  
17-09120  
17-09140  
01-01474  
09-09307  
07-13103  
15-01184  
13-00685  
MPM-72  
QMPM-72  
17-09130  
17-09131  
17-09140  
01-01477  
09-09185  
07-13106  
15-01184  
13-00685  
09-09548  
21-00577  
Anti-Sweat Heater-Side  
Anti-Sweat Heater-Front  
Condensate Pan Heater  
Condensing Unit  
Drier  
Evaporator Coil  
Evaporator Fan Blade  
Evaporator Fan Motor  
Expansion Valve  
Female Plug  
21-00577  
21-00312  
19-13092  
19-00819  
19-01090  
21-00577  
21-01218  
19-13092  
19-00819  
19-01090  
Power Cord  
Temperature Control  
Timer  
19-13092  
19-00819  
Toggle Switch  
ACCESSORIES LIST  
SHIP WT.  
PART NO.  
DESCRIPTION  
BUMPER KITS  
LB/KG  
A071-00100  
A071-00200  
A071-00300  
A071-00400  
A071-00500  
A071-00600  
A072-00100  
A072-00200  
A072-00300  
A072-00400  
A072-00500  
A072-00600  
A073-00100  
A073-00200  
A073-00300  
A073-00400  
A073-00500  
A073-00600  
White bumper for QMPM-36, QMVM-36 and QMVM-36L  
Red bumper for QMPM-36, QMVM-36 and QMVM-36L  
Green bumper for QMPM-36, QMVM-36 and QMVM-36L  
Blue bumper for QMPM-36, QMVM-36 and QMVM-36L  
Brown bumper for QMPM-36, QMVM-36 and QMVM-36L  
Black bumper for QMPM-36, QMVM-36 and QMVM-36L  
White bumper for QMPM-48, QMVM-48 and QMVM-48L  
Red bumper for QMPM-48, QMVM-48 and QMVM-48L  
Green bumper for QMPM-48, QMVM-48 and QMVM-48L  
Blue bumper for QMPM-48, QMVM-48 and QMVM-48L  
Brown bumper for QMPM-48, QMVM-48 and QMVM-48L  
Black bumper for QMPM-48, QMVM-48 and QMVM-48L  
White bumper for QMPM-72 and QMVM-72  
5/2  
5/2  
5/2  
5/2  
5/2  
5/2  
5/2  
5/2  
5/2  
5/2  
5/2  
5/2  
5/2  
5/2  
5/2  
5/2  
5/2  
5/2  
Red bumper for QMPM-72 and QMVM-72  
Green bumper for QMPM-72 and QMVM-72  
Blue bumper for QMPM-72 and QMVM-72  
Brown bumper for QMPM-72 and QMVM-72  
Black bumper for QMPM-72 and QMVM-72  
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SHIP  
WT.  
PART NO.  
DESCRIPTION  
CASTERS  
LB/KG  
A075-11140  
A076-11140  
Set of 4, 3" dia. for QMPM/MPM-36 and QMPM/MPM-48  
17/8  
Set of 6, 3" dia. for QMPM/MPM-72  
26/12  
SANDWICH RACKS - WELDED WIRE, CHROME PLATED  
16" L for QMPM and MPM models (Max. number of racks per model: -36 size: 2, -48 size: 3, -72 size: 4)  
33-01450  
33-01452  
8/4  
DIVIDERS FOR SANDWICH RACKS  
All QMPM and MPM models  
1/0.5  
NIGHT CURTAIN KIT - WHITE (MUST BE FACTORY INSTALLED)  
A071A11131  
A072A11131  
A073A11131  
For QMPM/MPM-36  
10/5  
10/5  
10/5  
For QMPM/MPM-48  
For QMPM/MPM-72  
NIGHT CURTAIN KIT - BLACK (MUST BE FACTORY INSTALLED)  
A071AB1131  
A072AB1131  
A073AB1131  
For QMPM/MPM-36  
10/5  
10/5  
10/5  
For QMPM/MPM-48  
For QMPM/MPM-72  
LIGHT KIT - WHITE (MUST BE FACTORY INSTALLED)  
A071A11151  
A072A11151  
A073A11151  
For QMPM/MPM-36  
15/7  
15/7  
15/7  
For QMPM/MPM-48  
For QMPM/MPM-72  
LIGHT KIT - BLACK (MUST BE FACTORY INSTALLED)  
A071AB1151  
A072AB1151  
A073AB1151  
For QMPM/MPM-36  
15/7  
15/7  
15/7  
For QMPM/MPM-48  
For QMPM/MPM-72  
NIGHT CURTAIN & LIGHT KIT - WHITE (MUST BE FACTORY INSTALLED)  
A071A11141  
A072A11141  
For QMPM/MPM-36  
For QMPM/MPM-48  
15/7  
15/7  
A073A11141  
For QMPM/MPM-72  
15/7  
NIGHT CURTAIN & LIGHT KIT - BLACK (MUST BE FACTORY INSTALLED)  
A071AB1141  
A072AB1141  
A073AB1141  
For QMPM/MPM-36  
For QMPM/MPM-48  
For QMPM/MPM-72  
15/7  
15/7  
15/7  
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SALE AND DISPOSAL  
OWNER RESPONSIBILITY  
If you sell or give away your Master-Bilt cabinet you must make sure that all safety labels and the Installation -  
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) 684-8988.  
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.  
If you sell or give away your Master-Bilt cabinet and you evacuate the refrigerant charge before shipment, Master-  
Bilt recommends that the refrigerant charge be properly recovered in complience with section 608 of the Clean Air  
Act effective November 1995 and in accordance with all applicable local, regional, or national standards.  
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