Norlake NXBF48MMS Service Manual

1 05/14 Rev. B 143589

Installation & Operati ons M anual

Ice Cream Hardening Cabinet

Models: NXBF27MMS/8, NXBF48MMS/8

2 05/14 Rev. B 143589

3 05/14 Rev. B 143589

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

7 Electrical

7 Low Temperature Freezers

8 Leg and Condensate Pan Installation

8

SERVICE INSTRUCTIONS

8

TEMPERATURE SENSOR, DEFROST HEATER AND FAN MOTOR REPLACEMENT

9

ELECTRONIC REFRIGERATION CONTROL

10-12

SENSOR TEMPERATURE AND RESISTANCE

12

FINAL CHECK LIST

12

CABINET & COMPONENT AMP DRAW

13

ACCESSORIES

13

PART LIST

14

SALE AND DISPOSAL

14

WIRING DIAGRAMS

15

4 05/14 Rev. B 143589

INTRODUCTION

This manual contains important instructions for installing, using and servicing an Ice Cream Hardening cabinet. A
parts list is included with this manual. Read all these documents carefully before installing or servicing your equipment.

STORE CONDITIONS

The Ice Cream Hardening cabinets 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 Ice Cream Hardening cabinet 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 th e equipment. Failure to do so could result in personal injury or dam age to the cabinet.

DANGER

Improper or faulty h o o k-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 na tional
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, have the serial
number at hand and call the Customer Service Department.

5 05/14 Rev. B 143589

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 ever yone who installs, uses or services you r 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 Ice Cream Dipping case at
the factory. Follow all war n ing label instructions . If any warning or safe ty labels become lost or damaged, call
your customer service department for replacements

This label is located on top of the electrical control
This label is attached to the cabinet power cord on models with a power cord.
label and on the wiring channel.