BLG/TLG Series
Bottom Mount Glass Door Merchandisers
2005 “K” Version with Dixell controller
Installation & Operations Manual
Master-Bilt Products
908 Highway 15 North
New Albany, MS 38652
PN 303-91000
Rev:8-20-05
Rev:8-23-06
Service Phone: 800-684-8988
2
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
Leg and Condensate Pan Installation..……………………………………………………………………. 7
Doors ..…………....………………………………………………………………………………………….. 8
ELECTRONIC REFRIGERATION CONTROL (DIXELL RX60C)…………………………………………….… 9
Programming……………………………………………………………………………………………..…. 9
List of Parameters………………………………………………………………………………………..….10
SENSOR PROBE ………………………………………………………………………………….………………. 11
CABINET COMPONENT AMP DRAW………………………………………………………………………………11
TEMPERATURE SENSOR, DEFROST HEATER AND FAN MOTOR REPLACEMENT…………………… .12
FINAL CHECK LIST…………………………………………………………………………………….………….… 13
SERVICE INSTRUCTIONS ………………………………………………………………………………………... 13
MASTER-BILT PART NUMBERS …………………………………………………………………………………. 14
ACCESSORIES …………………………………………………………………………………………………….15
SALE AND DISPOSAL ……………………………………………………………………………………………..15
WIRING DIAGRAMS BLG/TLG………………………………………….……………………….………… …...16-19
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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 BLG/TL G 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 BLG/TLG 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 BLG/TLG 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 6” 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 866-882-7629
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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
WARNING: Severe injury or death can
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.
occur if you ignore the message.
occur if you ignore the message.
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.
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 (BLG) with an N.S.F. listed silicone sealant.
.
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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 voltage and amps drawn on (Page 17-20) to determine proper line and fuse or circuit breaker size.
Check power supply for low voltage. If voltage reads “230” with no load, and it drops below “207” 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
Models (2 and 3 door low temp) are pre-wired internally with a 208-230V NEMA L14-20P plug
and should only be plugged into a NEMA L14-20P recepticle. See wiring diagrams on
page 19-21. The cabinet should be grounded.
LEG AND CONDENSATE PAN INSTALLATION FOR TOP MOUNT CABINETS ONLY
1. Screw legs into existing crate mounting holes.
2. Before moving cabinet into place, remove the
condensate pan from the top unit compartment.
3. Using the two screws supplied with the pan, attach
the pan to the back of the cabinet at the two holes
near the bottom of the plastic drain line. Be sure
pan is NOT located directly under cabinet. When
the pan is attached, feeds drain line into the open
hole in screen and clamp the heater conduit to the
back of the cabinet. Due to this condensate pan,
this case must be a minimum of 6” from the wall.
4. If cabinet must be located next to wall, the pan can
be located under the cabinet. When this is done,
steam will accumulate on the bottom of the cabinet
if there is not adequate ventilation, and rusting of
the bottom of the cabinet
will occur.
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DOORS
The BLG/TLG cabinets have Anthony glass doors
that are equipped with a patented TorqueMaster™
hinge system. The doors are easily adjusted using
a flathead screwdriver (Fig.3).
* The tension needs to be checked and set when
first install.
Figure 3
To remove the door shipping clamps,
remove the 4 shipping screws from the grill and
remove the screws from the clamps (Fig.4), and
replace grill.
Torque Adjustment
Leveling Adjustment
Figure 4
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MASTER-BILT ELECTRONIC REFRIGERATION CONTROL
OPERATION
Compressor W hen power is first turned on to the control, the LED indicat or under COMP on the
display starts blinking. After one-minut e delay the compressor comes on. The CO MP LED indicator
stays on while compressor relay is energized. Display will show actual box temperature. Figur e 4 is
the display layout.
The compressor will be cycled off when the actual box temperature reaches its set point. The
COMP indicator will be off.
Fig. 4 – Display Lay-out
Fan The fans will run constantly except when a defrost is initiated, or when the evaporator temp
is above the 30
drip time has passed. There is 4 minutes delay after a defrost before the fan comes on. The
difference of t he evaporator and r oom tem perat ure of more than 9
LED indicator is on while FAN relay is energized.
Defrost The cont rol uses time defrost with 4 defrost per day. A progr ammed “HOT-KEY” has
to be used to re-set the defr ost scheme f or special applications. During def rost t he display will show
dEF and the LED indicator under DEF in on. The control beg ins timing the defrost when power is
turned on. Four defrost per day means it will occur every 6 hours. To have defrost occur at 8am,
2pm, 8pm, and 2am then power up at one of these four times.
MANUAL DEFROST
o
F. When in def rost mode the f an is off until t he end of the defrost and the 2 minute
o
F will override the fan delay. FAN
1. Push this DEFROST
2. While in def rost, Push and hold the DEFROST
key for more than 2 seconds and a manual defrost will start.
key for m ore than 5 seconds and
the controller will end the defrost cycle. The controller will then enter drip mode for 2
minutes. The DEF led is flashing in dr ip m ode.
HOW TO SEE THE SETPOINT (Box temperature cut-out)
1.
Push and immediately release the SET key: the display will show the Set
point value;
2. Push and immediately release the SET key or wait for 5 seconds t o display the pr obe value
(actual box temperature) again.
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HOW TO CHANGE THE SETPOINT
1. Push the SET key for more than 2 seconds to change the Set point value;
2. The value of the set point will be displayed and the LED under COMP start s blinking;
3. To change the Set value push the UP ▲ or DOWN▼ arrows within 10s.
To memorize the new set point value push the SET key again or wait 10s.
HOW TO CHANGE a parameter value
1. Enter the Programming mode by pressing the SET and DOWN ▼ keys for 3 seconds
(LEDs under DEF and COMP start blinking).
2. Select the required parameter by pushing
3. Press the “SET” key to display its value (now only the COMP LED is blinking)
4. Use “UP” or “DOWN” to change its value
5. To exit: Press SET + UP ▲ or wait 15s without pressing a key.
NOTE 1: The set value is stored even when the procedure is exited by waiting the time-out to expire.
NOTE 2: Master-Bilt’s SETPOINT is set at a recommended –10°F at the factory for low temperature(LT) and
NOTE 3: To scroll down the parameters without changing them, press the DOWN button.
o
+35
F for medium temperature(MT) application.
LIST OF PARAMETERS
Here is a list of the parameter s the value of which can be changed in the programming mode, as
well as their ranges.
Parameter Display
Symbol
Temperature Set
Point
Temperature
Differential
Maximum
Temperature
Set
Hy
ALU
When this t em per at ure is
reached the compressor LED
Cut-out temperature is Set + Hy
Alarm
Minimum
Temperature
ALL
Alarm
Temperature
Ald
Alarm Delay
Room Probe
dP1
display
Evaporator
dP2
Probe Display
the UP ▲ or DOWN▼ arrows
Description Range
Master-Bilt’s
Setting
BLG
-16 to 5°F
-10°F or -15°F
will be off
1 to 255°F
230°F
-58°F
0 to 255 min
10
15
-25
30
10
ALARM SIGNALS
Message Cause Outputs
“P1”
“P2”
“HA”
“LA”
Room probe failure Compressor output time, 6 min on, 4 min off
Evaporator probe failure Defrost end is timed
Maximum temperature alarm Outputs unchanged.
Minimum temperature alarm Outputs unchanged.
NOTE:
Probe alarms “P1” and “P2” star t some seconds after the f ault in the related probe; they
automatically stop some seconds after the probe restarts normal operation. Check
connections before replacing the probe.
Temperature alarms “HA” and “LA” automatically stop as soon as the thermostat
temperature returns to norm al values and when defrost starts.
ELECTRICAL CONNECTIONS
The controller is provided with screw terminal block to connect cables with a cross section up to 2,5 mm
Before connecting cables make sure the power supply complies with the control’s requirements. Separate the
probe cables from the power supply cables, from 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.
2
.
PROBE CONNECTIONS
The probes shall be mounted with the bulb upwards to prevent damages due to casual liquid infiltration. It is
recommended to place the thermostat probe away from 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.
BLG/TLG CABINET COMPONENT AMP DRAW
VOLTAGE AMPS AT AMPS AT
ITEM
Coil Defrost Heater 17-09408 230 V BLG/TLG-48, 52 3.9 4.3 Check Red or Black Leg
Coil Defrost Heater 17-01311 230 V BLG/TLG-74, 80 6.3 7 Check Red or Black Leg
Condensate Heater 230 V BLG-48, 52, 74, 80 1.2 1.3 Check Red or Black Leg
Condensate Heater 201I130 230 V TLG-48, 52, 74, 80 1.2 1.3 Check Red or Black Leg
Door Frame Heater 17-09419 115 V BLG/TLG-48, 52, 74, 80 .33 ea .37 ea Check Black Leg
Door 31-02602 120V BLG/TLG-48, 74 .55 ea .60 ea Check Black Leg
Door 31-02603 120V BLG/TLG-48 .55 ea .60 ea Check Black Leg
Door 31-02604 120V BLG/TLG-52, 80 .76 ea .84 ea Check Black Leg
Door 31-02605 120V BLG/TLG-52 .76 ea .84 ea Check Black Leg
Drain Heater 17-00404 115 V BLG/TLG-48, 52, 74, 80 0.05 0.06 Check Black Leg
ITEM
Coil Defrost Heater 17-09407 120 V BLG/TLG-27 4.3 4.8 Check Black Leg
Condensate Heater A321-130 115 V BLG-27 2.3 2.6 Check Black Leg
Condensate Heater 323I130 115 V TLG-27 2.3 2.6 Check Black Leg
Door Frame Heater 17-09419 115 V BLG/TLG-27 0.33 0.37 Check Black Leg
Door 31-02600 120V BLG/TLG-27 .81 ea .90 ea Check Black Leg
Drain Heater 17-00404 115 V BLG/TLG-27 0.05 0.06 Check Black Leg
PART
NO.
PART
NO.
RATING CABINET 208 VOLTS 230 VOLTS NOTES
VOLTAGE
RATING CABINET 104 VOLTS 115 VOLTS NOTES
AMPS AT AMPS AT
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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 system for proper defrost settings and operation.
F. Check condensing unit for vibrating or rubbing tubing. Dampen and clamp as required.
G. All valves should be completely opened counter-clockwise.
H. Check packing nuts on all service valves.
I. Replace all service valve caps and latch unit covers.
J. Check and set the door tension at the Torque Adjustment.
SERVICE INSTRUCTION
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.
F. Defrost heater not operating.
5. Copressor 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 sensor, defrost heater 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 a temperature sensor (cabinet zone sensor or defrost termination sensor), simply disconnect the
sensor wires from the controller and replace the new sensor in the original position. Use plastic tie to tighten the
zone sensor. Insert the sensor for defrost termination firmly into the evaporator coil, in between the fins. Make
sure the sensor wires do not touch or are not close to any heater rods.
To change defrost heater – remove screws from drain pan and pull down – remove screws from coil mounting
straps – spring straps open – remove heater shield – pull heater out of slots in coil fins.
To change fan motor – disconnect fan motor leads – remove screws from fan guards and motor mounts.
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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
BLG/TLG cabinets. Always Advise Cabinet Serial Number When Ordering Parts
Description BLG/TLG-
27HD
Ballast 23-01706 23-01706 23-01706 23-01706 23-01706
Bulb 23-01689 23-01689 23-01689 23-01689 23-01689
Bulb Holder Bottom 23-00335 23-00335 23-00335 23-00335 23-00335
Bulb Holder Top 23-00336 23-00336 23-00336 23-00336 23-00336
Bulb Shield Inner 23-01692 23-01692 23-01692 23-01692 23-01692
Bulb Shield Outer 23-01462 23-01464 23-01464 23-01464 23-01464
Coil Defrost Heater 17-09407 17-09408 17-09408 17-01311 17-01311
Compressor 03-14799 03-14968 03-14968 03-14973 03-14973
Compressor Contactor 19-13936 19-13934 19-13934 19-13934 19-13934
Compressor Relay 03-14980 03-14979 03-14977 03-14977
Compressor Run Capacitor 03-14978 03-14978 03-14975 03-14975
Compressor Start Capacitor 03-14979 03-14979 03-14976 03-14976
Compressor Switch 19-13118 19-13118 19-13118 19-13118 19-13118
Condensate Heater “T” 17-00380 17-00421 17-00421 17-00421 17-00421
Condensate Heater
Electric, TLG
Condensate Heater, BLG
Electric (Optional)
Condenser Coil 07-13241 07-14009 07-14009 07-14009 07-14009
Condenser Fan Blade 15-13093 15-13093 15-13093 15-13093 15-13093
Condenser Fan Motor 13-00311 13-01283 13-01283 13-01283 13-01283
Door Frame Heater 17-09419 17-09419 17-09419 17-09419 17-09419
Door-L.H. (Black) 31-02600 31-02602 31-02604 31-02602 31-02604
Door-R.H. 31-02603 31-02605
Drain Heater 17-00404 17-00404 17-00404 17-00404 17-00404
Drier 09-09171 09-09711 09-09711 09-09711 09-09711
Electronic Controller 19-13918 19-13918 19-13918 19-13918 19-13918
Evaporator Coil 07-13288 07-13289 07-13289 07-13290 07-13290
Evaporator Fan Blade 15-13106 15-13106 15-13106 15-13106 15-13106
Evaporator Fan Guard 25-01324 25-01324 25-01324 25-01324 25-01324
Evaporator Fan Motor 13-13181 13-13182 13-13182 13-13182 13-13182
Expansion Valve 09-09825 09-09758 09-09758 09-09759 09-09759
Female Door Plug 21-00568 21-00568 21-00568 21-00568 21-00568
Female Plug 21-00577 21-00577 21-00577 21-00577 21-00577
Front Control 19-13897 19-13897 19-13897 19-13897 19-13897
Heater Safety Control 19-01164 19-01164 19-01164 19-01164 19-01164
Leg (TLG only) 27-00558 27-00558 27-00558 27-00558 27-00558
Leg Leveler 27-00592 27-00592 27-00592 27-00592 27-00592
Light Switch 23-50793 23-50793 23-50793 23-50793 23-50793
Sight Glass
Temperature Sensor (2) 19-13932 19-13932 19-13932 19-13932 19-13932
Terminal Block 19-01091 19-01091 19-01091 19-01091
323I130 323I130 323I130 323I130 323I130
A321-130 17-00421 17-00421 17-00421 17-00421
BLG/TLG-
48HD
BLG/TLG-
52HD
BLG/TLG-
74HD
BLG/TLG-
80HD
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Accessories (Includes HD Models)
Description BLG/TLG-
27HD
Baskets (Cantilever)
20” X 22” X 5”
Baskets
(Conventional)
BLG/TLG-
48HD
33-01458
33-01419
BLG/TLG-
52HD
BLG/TLG-
74HD
33-01458
33-01419
BLG/TLG-
80HD
22”X 22-3/4”X 5”
Baskets
(Conventional)
33-01376
33-01376
24-3/4”X22”X5”
Casters (4) 3”
Diameter
Casters (6) 3”
A200-11140 A200-11140 A200-11140
A212-11140 A212-11140
Diameter
Legs 6” A200-11170 A200-11170 A200-11170 A212-11170 A212-11170
Shelves (Cantilever) 33-01473 33-01474 33-01475 33-01474 33-01475
Shelve, Bottom 33-01402 33-01453 33-01448 33-01453 33-01448
Shelving Clips (4) 33-01011 33-01011 33-01011 33-01011 33-01011
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.
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