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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

Service Phone: 800-684-8988

PN 303-91000

Rev:8-20-05

Rev:8-23-06

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

INTRODUCTION

Thank you for purchasing a Master-Bilt cabinet. This manual contains important instructions for installing,

using, and servicing a Master-Bilt BLG/TLG 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

CAUTION!

GROUND REQUIRED

FOR SAFE OPERATION

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.

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.

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.

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.

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.

Figure 4

Tor

ue Ad

ustment

Levelin

ustment

MASTER-BILT ELECTRONIC REFRIGERATION CONTROL

OPERATION

Compressor When power is first turned on to the control, the LED indicator under COMP on the

display starts blinking. After one-minute delay the compressor comes on. The COMP LED indicator

stays on while compressor relay is energized. Display will show actual box temperature. Figure 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 30oF. When in defrost mode the fan is off until the end of the defrost and the 2 minute

drip time has passed. There is 4 minutes delay after a defrost before the fan comes on. The

difference of the evaporator and room temperature of more than 9oF 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. A programmed “HOT-KEY” has

to be used to re-set the defrost scheme for special applications. During defrost the display will show

dEF and the LED indicator under DEF in on. The control begins 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

1. Push this DEFROST key for more than 2 seconds and a manual defrost will start.

2. While in defrost, Push and hold the DEFROST key for more 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 drip mode.

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 to display the probe value

(actual box temperature) again.

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 starts 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 the UP ▲ or DOWN▼ arrows

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

+35oF for medium temperature(MT) application.

NOTE 3: To scroll down the parameters without changing them, press the DOWN button.

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.

Master-Bilt’s

Setting

Parameter Display

Symbol Description Range

BLG

Temperature Set

Point

Set When this temperature is

reached the compressor LED

will be off

-16 to 5°F

-10°F or -15°F

Temperature

Differential

Hy Cut-out temperature is Set + Hy

1 to 255°F

Maximum

Temperature

Alarm

ALU

230°F

Minimum

Temperature

Alarm

ALL

-58°F

-25

Temperature

Alarm Delay Ald

0 to 255 min

Room Probe

display dP1

Evaporator

Probe Display dP2

ALARM SIGNALS

Message Cause Outputs

“P1”

Room probe failure Compressor output time, 6 min on, 4 min off

“P2”

Evaporator probe failure Defrost end is timed

“HA”

Maximum temperature alarm Outputs unchanged.

“LA” Minimum temperature alarm Outputs unchanged.

NOTE:

Probe alarms “P1” and “P2” start some seconds after the fault 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 normal 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 mm2.

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.

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 PART

NO. RATING CABINET 208 VOLTS 230 VOLTS NOTES

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

VOLTAGE AMPS AT AMPS AT

ITEM PART

NO. RATING CABINET 104 VOLTS 115 VOLTS NOTES

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

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).

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.

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 BLG/TLG-

48HD BLG/TLG-

52HD BLG/TLG-

74HD BLG/TLG-

80HD

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 323I130 323I130 323I130 323I130 323I130

Condensate Heater, BLG

Electric (Optional) A321-130 17-00421 17-00421 17-00421 17-00421

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

Accessories (Includes HD Models)

Description BLG/TLG-

27HD BLG/TLG-

48HD BLG/TLG-

52HD BLG/TLG-

74HD BLG/TLG-

80HD

Baskets (Cantilever)

20” X 22” X 5”

33-01458

Baskets

(Conventional)

22”X 22-3/4”X 5”

33-01419

Baskets

(Conventional)

24-3/4”X22”X5”

33-01376

Casters (4) 3”

Diameter A200-11140 A200-11140 A200-11140

Casters (6) 3”

Diameter A212-11140 A212-11140

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.

AMD K BLGTLG_K_DiXell_08 23 06 To The Manual 0f269191 7205 4553 Ad8a 4d8c218922ac

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