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BSG-48, 74
Installation & Operations Manual
Master-Bilt Products
908 Highway 15 North
New Albany, MS 38652
Phone: (800) 684-8988
PN 075-90000
Rev 01-03-11
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SOLLATEK CONTROLLER
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TABLE OF CONTENTS
INTRODUCTION………………………………….……………………………………………………………………4
STORE CONDITIONS…………………………….……………….…..…………………………………………….. 4
WARNING LABELS AND SAFETY INSTRUCTIONS………..…..……………………………………………… 5
PRE-INSTALLATION INSTRUCTIONS………………………..…..………………………………….…………… 6
Inspection for Shipping Damage…………………………………………………………….…………… 6
INSTALLATION INSTRUCTIONS………………………………………………………………………………….. 6
General Instructions…………………………………………………………………………………………. 6
Mechanical ..…………………………………………………………………………………………………..6
Electrical…………...…………………………………………………………………………………………..7
Temperature Control…… ………………………….………………………………………………………..7
Leg……………………………………....……………………………………………………………………..7
Doors ..…………....…………………………………………………………………………………………...8
SERVICE INSTRUCTIONS …………………………………………………………………………………………8
TEMPERATURE CONTROL AND FAN MOTOR REPLACEMENT……………………………………………..9
FINAL CHECK LIST…………………………………………………………………………………….……………..9
MASTER-BILT PART NUMBERS ………………………………………………………………………………..10
ACCESSORIES …………………………………………………………………………………………………..10
SALE AND DISPOSAL ……………………………………………………………………………………………11
WIRING DIAGRAMS BMG/TMG...……………………………………….……..……………….……………...12-13
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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 BSG case. A parts list is included with this manual. Read all these documents carefully before
installing or servicing your equipment.
STORE CONDITIONS
The Master-Bilt BSG 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.
The Master-Bilt BSG should not be positioned where it is directly exposed to rays of sun or near a direct source of
radiant heat or airflow. This will adversely affect the case and will result in poor performance.
If this case is to be located against a wall, there should be at least 4” space between the wall and the back of the case.
This space will allow for the circulation of air behind the case, which will prevent condensation on the exterior surfaces.
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 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 portions of this manual covering refrigeration and electrical components contain 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
Highway 15 North
New Albany, MS 38652
Phone (800) 684-8988
Fax (800) 684-8988
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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 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 (800) 684-8988 for replacements.
CAUTION!
GROUND REQUIRED
FOR SAFE OPERATION
This label is located on top of the electrical control This label is attached to the cabinet power cord
label and on the wiring channel. 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.
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. Clean the cabinet with a mild
detergent and water, then rinse.
3. Rotate your stock so that older stock does not accumulate. This is especially important for ice
cream. A "First-In, First-Out" rotation practice will keep the products in good salable condition.
4. Do not place product in the case when it is soft or partially thawed. Also, 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.
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 should determine if the cabinet
is malfunctioning or if there is a drainpipe leaking.
MECHANICAL
Remove front grille and check refrigeration lines to see that they are free (not touching each other or compressor).
Spin condenser fan blade to see that it is free.
The compressor is hermetic, it is internally spring mounted and ready to run.
Remove cabinet from crate base and slide into location. Cabinet must be level from side to side and front to back for
correct draining of coil pan and for self-closing doors to operate correctly. Allow minimum of 4” between back of cabinet
and wall and between top of cabinet and ceiling for proper condensing unit air circulation.
To comply with Sanitation requirements the cabinet must be mounted on legs (6” high min.) or casters or the base must
be sealed to the floor (BSG) with an N.S.F. listed silicone sealant.
Hang provided NSF Listed thermometer at front of top shelf unless cabinet provided with electronic control.
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ELECTRICAL
Temperature
Control
Number indi
cator
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.
NOTICE
For models with electronic ballast only:
For replacement ballast, use only ballast that complies with UL Type CC rating if unit is equipped with
electronic ballast.
Check voltage and amps drawn on (Page 12-15) to determine proper line and fuse or circuit breaker size. Check power
supply for low voltage. If voltage reads “120” with no load, and it drops below “100 or less” when the compressor tries to
start, it is an indication of too small supply wiring or too long to run.
It is recommended that a separate circuit be run for each cabinet to prevent another appliance blowing the fuse or
breaker, causing loss of product.
IMPORTANT
This cabinet is pre-wired internally for 120-volt circuits. “Tapping” or feeding the 115-volt circuit from 230-volt
supply may result in overloaded circuit breakers or blown fuses and damage to electrical system, thereby
voiding the warranty.
The cabinet should be grounded.
TEMPERATURE CONTROLLER
The BSG cabinet has a temperature control that is adjustable from # 0
(warmest setting) to # 9 (coldest setting). All the above controls and the
light’s switch are accessible at the bottom of the venturi inside the cabinet.
Temperature control
LEGS
1. Remove the screws out from the shipping mounting
crate.
2. Screw the legs into the existing crate mounting holes
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DOORS
Figure 3
The BSG cabinets have Thermoseal sliding glass doors
that are equipped with tension adjustment spring. The
doors are easily adjusted using a phillips screwdriver
(Fig.3).
SERVICE INSTRUCTIONS
1. High head pressure and high back pressure:
A. Condenser coil clogged or restricted
B. Condenser fan motor defective.
C. Air discharge in rear of cabinet restricted.
2. Low back pressure and low head pressure:
A. Restriction in system.
B. Refrigerant undercharged.
C. Leak in system
3. Pressure normal – cabinet warm:
A. Coil blocked with frost (see #4).
B. Refrigerant undercharged.
C. Control set too warm.
4. Cabinet not cycling – coil blocked with frost:
A. Defective temperature controller.
B. Refrigerant overcharged.
C. Location too hot.
D. Condenser clogged.
E. Condenser fan motor defective.
5. Compressor starts and runs – but cycles on overload:
A. Low voltage
B. Relay defective.
C. Overload defective.
D. High head pressure (see #1).
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TEMPERATURE CONTROL AND FAN MOTOR REPLACEMENT
Before making any change, technician should:
1. Disconnect power to the cabinet
2. Remove screws from venturi and pull down
To change fan motor – disconnect fan motor leads – remove screws from fan guards and motor mounts.
To change a temperature control – pull off the control knob and remove screws from the control – unplug the control
leads and replace with a new control – put screws back in control and press on control knob.
FINAL CHECK LIST
A. Check operating pressures.
B. Check electrical requirements of unit to supply voltage.
C. Set temperature control for desired temperature range.
D. Check sight glass for proper refrigerant charge if provided
E. Check condensing unit for vibrating or rubbing tubing. Dampen and clamp as required.
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MASTER-BILT PART LIST
The table below gives Master-Bilt part numbers. Use this chart when ordering replacement parts for your BSG
cabinets. Always Advise Cabinet Serial Number When Ordering Parts
Description BSG-48 BSG-74
Accumulator 09-00813 09-00812
Ballast 23-01709 23-01704
Bulb 23-00325 23-00325
Lamp Holder 23-50562 23-50562
Capillary Tube 11-01450 11-01450
Compressor 03-50330 03-14901
Condensing Coil 07-13253 07-13296
Door and Frame Assembly 31-02827 31-02856
Left Door 31-03020 31-03022
Right Door 31-03021 31-03023
Center Door - 31-03024
Drier 09-09309 09-09309
Evaporator Coil 07-13293 07-13311
Evaporator Fan Blade 15-13106 15-13106
Evaporator Fan Guard 25-01324 25-01324
Evaporator Fan Motor 13-13181 13-13181
Light Switch 19-13118 19-13118
Pilaster 200-16156C 200-16156C
Cabinet Harness 21-01504 21-01504
Power Cord with Recepticle
120V/15A 21-00524 21-00524
220V/15A 21-00524
Temperature Control 19-14239 19-14239
Thermometer 44-00963 44-00963
Wall Guard
14-1/16” X 45”
15-7/8” X 45”
18-3/4” X 45”
25-01296 25-01296
25-01295 25-01295
Accessories
Description BSG-48 BSG-74
Baskets (Cantilever) A200-16600 A200-16600
Casters (4) 3” Diameter A200-11140
Casters (6) 3” Diameter A212-11140
Legs 6” A200-11170 A212-11170
Shelves (Cantilever) 33-01474 33-01474
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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 compliance 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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