Master-Bilt QMVM-36E Service Manual

Installation & Operations M a nual

Master-Bilt Products

908 Highway 15 North

New Albany, MS 38652

Phone: (800) 684-8988

By: LN

Rev: 08/08/2006

57-01436

TABLE OF CONTENTS

INTRODUCTION………………………………….……………………………………………………………………3 STORE CONDITIONS / LOCATION ………….……………….…..………………………………………………. 3 WARNING LABELS AND SAFETY INSTRUCTIONS………..…..……………………………………………….4 PRE-INSTALLATION INSTRUCTIONS………………………..…..………………………………….…………… 4 Inspection for Shipping Damage……………………………………………………………….…………... 4 INSTALLATION INSTRUCTIONS………………………………………………………………………………….. 5

General Instructions…………………………………………………………………………………………. 5 Thermometer Installation…………………………………………………………………………………… 5 Location………………………………………………………………………………………………………..5 Plumbing……………………………………………………………………………………………………….5 Electrical……..…………………………………………………………………………..…………………….6

STARTING PROCEDURE…………………………………………………………………………………………….6 FINAL CHECK LIST…………………………………………………………………………………….……………..6 LOADING………………………………………………………………………………………………………………..6 OPERATING INSTRUCTIONS / TEMPERATURE CONTROL …………………………………………………..6 PLACING PRODUCT IN CABINET ………………………………………………………………………………….7 CLEANING………………………………………………………………………………………………………………8 PROGRAMMING……………………………………………………………………………………………………8-11 SERVICE INSTRUCTIONS…………………………………………………………………………………………..12 MASTER-BILT PART NUMBERS……………………………………………………………………………….12-13 ACCESSORIES LIST………………………………………………………………………………………………….14 SALE AND DISPOSAL…………………………………………………………………………………………….….14 WIRING DIAGRAMS………….…………………………………………………………….…………..…………15-21

INTRODUCTION

Thank you for purchasing a Master-Bilt cabinet. This manual contains important instructions for installing, using and servicing a Master-Bilt QMVM 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 QMVM 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 QMVM 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. Consult the section of this manual for installing and piping the drain.

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.

The portion 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

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 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 (662) 534-9061 for replacements.

occur if you ignore the message.

CAUTION!

GROUND REQUIRED

FOR SAFE OPERATION

This label is located on the electrical control This label is attached to the cabinet power cord on

box and on the rear access cover. 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. Wipe up all spills, clean with water and a mild detergent, then rinse with clean water. A reservoir is provided to contain inner 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 2 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 Sanitation requirements, this cabinet must be mounted on casters, legs (6” high min.) or the base must be sealed to the floor with NSF listed silicone sealant. Minimum clearance as follows: 10” air space at top, 6” at the rear, and 0” air space at each side required for compliance. Before moving cabinet into place, route cabinet plumbing with P-trap to store drain line or install optional condensate pan.

THERMOME TER INSTALLATION

Install provided thermometer at the clip on the price tag moulding near the top left edge of the case. Remove the tape backing and press the thermometer in place.

PLUMBING

Each QMVM case has a P-trap installed. It is very important that this trap not be removed as it will result in diminished peformance of the case without it.

1. Always install drains in accordance with local codes.

2. Use largest possible size pipe for drains, ¾” minimum is recommended.

3. Provide as much downhill slope as possible.

4. Prevent drains from freezing. Do not install drains in contact with uninsulated suction lines.

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 the case to pull down to 42 degrees or below before placing product into the

QMVM.

DURING THIS TESTING PERIOD YOU SHOULD:

1. Check that the compressor cycles off and back on at least once.

FINAL CHECK LIST

A. Check that the evaporator drain line is properly connected. B. All shelves are properly installed. B. Check electrical supply voltage to make sure it is in range. C. All loose items and debris is removed from inside of unit and lower equipement compartment. D. Check condensing unit for vibrating or rubbing tubing. Dampen and clamp as required. E. All valves should be completely open counter-clockwise. F. Check packing nuts on all service valves. G. Replace all service valve caps and latch unit covers. I. Check that the temperature of the case is between 35 and 42 degrees.

Do not place product in the case until 2 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.

OPERATING INSTRUCTIONS / TEMPERATURE CONTROL

The refrigeration system is controlled by an ERC2 electronic control. The factory setting will give an operating temperature of 38°F to 42°F. If a warmer or colder temperature is

desired, see the programming section of this manuel. The case temperature sensor from the ERC2 control is positioned in the evaporator return air. The coil temperature

sensor from the ERC2 control is inserted in the coil about 1 inch from the left side as viewed when looking into the cabinet, and about 2 inches from the top of the evaporator coil. The coil temperature sensor must be fully inserted into the coil pack to approximately the middle of the coil. The ERC2 control is factory set to provide the proper operating condition for most applications. If it is determined that the settings should be changed, then please see the programming section. The ERC2 control is factory set to provide four defrosts per day. It is recommended that the continuous evaporator fan operation as factory set be used for the best operation. The continuous fan operation will allow the evaporator fan to run during the compressor off cycles and also during the defrost cycle.

Overstocking the cabinet, or adverse operating conditions, will have an effect on the cabinet and product temperatures.

L F

PLACING PRODUCT IN THE CABINET

Do not load the cabinet with product to the point that the air discharge grille, air intake grille, or the air

SAFE

PRODUCT

LEVEL

curtain created by the discharge air, is blocked. The following diagram shows proper loading.

There are three (3) shelves furnished as standard with the QMVM cabinet: 10” shelf, 12” shelf and 14” shelf. The 14” shelf MUST be the bottom shelf, and the shelf bracket located so that the top insert of the bracket is placed no higher thatn the No. 7 slot in the shelf support when the shelf is installled in a horizontal position. If the lower shelf is installed in the angled down position, the top insert of the shelf bracket may be as high as the No. 9 slot.

The 12” shelf is to be used as the middle shelf, and

Cabinet Plumbing Hookup Requires Connection To Customers Drain.

The Drain Line From The Cabinet Must Be Properly Trapped.

the shelf bracket located so that the top insert of the bracket is placed no higher than the No. 25 slot in the shelf support when the shelf is installed in a

Figure 1.1

horizontal position. If the lower shelf is installed in the angled down position, the top insert of the shelf bracket may be as high as the No. 27 slot.

The #7, #9, #25, and #27 slots are marked by raised dimples on the shelf standards. There are reised dimples beside the slots in each shelf standard.

The 10” shelf MUST be the top shelf, and the shelf bracket located so that the top insert of the bracket is placed at any point in the shelf support when the shelf is installed in a horizontal or angled position. This 10” shelf must be the top shelf if any shelf bracket is located above the No. 25 slot.

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