Master Bilt TAF-27 ERC2 s Manual de usuario

Installation & Operations Manual

Master-Bilt Products

908 Highway 15 North

New Albany, MS 38652

Phone: (800) 684-8988

PN 228-90000

Rev 05-04-04 bhs

TABLE OF CONTENTS

INTRODUCTION………………………………….……………………………………………………………………

STORE CONDITIONS…………………………….……………….…..…………………………………………….. 4

WARNING LABELS AND SAFETY INSTRUCTIONS………..…..……………………………………………… 5

PRE-INSTALLATION INSTRUCTIONS………………………..…..………………………………….……………6

Inspection for ShippingDamage……………………………………………………………….……………6

INSTALLATION INSTRUCTIONS………………………………………………………………………………….. 6

General Instructions………………………………………………………………………………………….6

Electrical...……………………………………………………………………………………………………..6

Leg and Condensate Pan Installation…..…………………………………………………………………..7

ELECTRONIC REFRIGERATION CONTROL (ERC)………….…………………………………….……………8

FINAL CHECK LIST…………………………………………………………………………………….…………….12

SENSOR PROBE ………………………………………………………………………………….……………….13

SERVICE INSTRUCTIONS…………………………………………………………………………………………..14

MASTER-BILT PART NUMBERS…………………………………………………………………………………..15

SALE AND DISPOSAL………………………………………………..…………………………………………… 16

WIRING DIAGRAMS……………………………………………………………… ……………………………..17-18

INTRODUCTION

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

using and servicing a Master-Bilt TAF ERC2 case. A parts list is included in with this manual. Read all these

documents carefully before installing or servicing your equipment.

STORE CONDITIONS

The Master-Bilt TAF ERC2 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 TAF ERC2 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 (see page 7). 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 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 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

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 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

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.

Check that all service valves (2) are open. Cut compressor hold-down strap and remove. The springs are

secured for shipping by either tightening bolts or shipping strap. Remove the strap or loosen the hold-down

bolts so that the compressor floats freely. Check all refrigeration lines and electrical conduit for rubbing or

chaffing, paying particular

attention to area where lines enter the cabinet.

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 with an N.S.F. listed silicone sealant.

To comply with UL requirements the cabinet must have a minimum clearance of 4” at the top, 6” at the

rear and 0” at each side.

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.

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.

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.

LEG AND CONDENSATE PAN

INSTALLATION FOR TOP MOUNT

CABINETS ONLY

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. The casters provided with this case

screw into the holes from which the shipping

bolts were removed.

CONDENSATE PAN INSTALLATION FOR TOP MOUNT CABINETS ONLY

1. Before moving cabinet into place,

remove the condensate pan from the

top unit compartment.

2. 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, feed 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.

3. If cabinet must be located next to

wall on legs, 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.

Low Temperature Freezers – TAF Models

The TAF - 27 models are cord connected and operate on a 15 amp, 115/60/1 circuit. The TAF – 48 and TAF-

74 models have two junction boxes mounted on top of the cabinet, at the right rear, for permanent connection

to power. One junction box is labeled 115v. (black, white and green lead) ; the other is labeled 230v. (black, red

and green lead). These boxes should be connected to their respective power source. Check inside the cabinet

for the power requirement for each cabinet. The label is located in the upper left hand corner.

ERC 2 – ELECTRONIC REFRIGERATION CONTROL

Programming

The ERC 2 control initially powers up displaying 12:00 AM otherwise it will show the last configured

selection (time or temperature). If a power outage occurs during normal operation, the control will

maintain the correct time-of-day using a capacitor (batteries are not required). The time will be

maintained for up to 100 hours when the capacitor is fully charged.

To access the pushbuttons on the ERC2,

flip up the front cover using the tabs on

the side of the cover as shown.

To initiate a Manual Defrost, press and hold the MAN DEF key for 3 seconds.

There are two levels of programming in the ERC 2. The first level of security will enable the user to

set two parameters: Time-of-day (CLoC) and Set point temperature (SEt). The other level allows

access to the other parameters.

Three buttons are used for the programming: SET, UP and DOWN

Fig. 4 – Display Lay-out

To change time-of-day and set point temperature (First Level) follows these steps:

Step 1 Press and hold set for 5 seconds. The display will show CLoC

Step 2 Press SET again to change the time-of-day

Step 3 or Press UP or DOWN until the correct time-of-day is displayed

Step 4 Press SET to accept the new time

Step 5 Press DOWN to go to the next parameter – Set point

Temperature - (cut out)

Step 6 Press SET to change the set point temperature

Step 7 or Press UP or DOWN to go to the desired set point. The range is

– 40 to 60°F or –40 to 16°C

Step 8 Press SET to accept the change

Step 9 Press DOWN to exit the first level of programming

Note 1: During programming, if no button is pushed during 30 seconds, the control will go

back to the normal operating mode. This is valid for both programming levels.

Note 2: When changing the time, press and hold the MAN DEF button for 3 seconds to

change the AM/PM mode.

Note 3: Master-Bilt’s Set point Temperature (Set) is set at a recommended –10°F at the

factory for low temperature(LT) and +35oF for medium temperature(MT) application.

Note 4: If demand defrost (ddEF) is used, the minimum number of defrost is 1 per 24 hours.

To change the other parameters (Second Level) follow these steps:

Step 1 and Press and hold SET and DOWN for 10 seconds. The display

will show dSPL

Step 2 Press SET to change the parameter

Step 3 or Press UP or DOWN to change the options, time or temperature

for the current parameter

Step 4 Press SET to accept the new value

Step 5 Press DOWN to go to the next parameter, then go back to Step

2. After the last parameter is displayed (ALHi), the display will

go back to the normal operating condition

Note: to scroll down the parameters without changing them, press the DOWN button.

List of Parameters

Here is a list of the parameters that can be changed in the Second Level of programming, as well as

their options and ranges.

Note: Master-Bilt’s Set point Temperature (Set) is set at a recommended –10°F at the

factory.

Parameter Displa

Symbo

Description Range / Options Master-

Bilt’s

Factory

Setting

Display Status dSPL Information shown

on the display

during operation

conditions

tdAy – time-of-day

rSP°– zone temperature

CyCL – cycle between time and

zone temperature

Epr°– evaporator coil temperature

rSP

Clock Format CLHr Time Format(12 or

24 hours mode) 12Hr – AM/PM format

24Hr – 24 hour format 12Hr

Temperature

Format

°dSP Temperature

degrees

°F– degrees Fahrenheit

°C– degrees Celsius

°F

Defrost Type dFtP Type of defrost used

in the application ELEC – electric defrost / off cycle

HgAS – hot gas defrost ELEC

Fan Status

During Defrost EFAN Enable or not the

fan during defrost no – fan is turned off during defrost

yES – fan remains on during defrost

No – for LT

yES–for MT

Fan Status

During Normal

Mode

CFAN Enable or not fan during

normal compressor

on/off mode

on – fan on during normal mode

CyCP – fan cycles with compressor on

Defrost

Interval dFin Type of defrost

interval TdAy – time-of-day setpoint

CPrn – compressor run time

tdEF – temperature initiated defrost

ddEF – demand initiated defrost

ddEF–for LT

CPrn–for MT

Minimum

Compressor

Off Time

CoFF Minimum time that

the compressor

remain turned off

Range: from 0 to 15 min 2 min.

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