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Harmony® User Manual
P A R T N U M B E R : 2 1 - 3 4 9 8 9
Please Note
Your specific model number is located on the
serial label (usually at the case rear). However,
label locations may vary depending on the
model – see page 20 for more details.
Models shown on this cover sheet do not
represent all models covered by this manual.
Support:
structuralconcepts.com/support
Tech Service/Warranty:
1 (800) 433-9490, EXT. 1
Hours:
Monday – Friday, 8am to 8pm EST (Closed holidays)
21-34989 HARMONY REFRIGERATED CASES MANUAL-EN
Models
HMBC2
HMO6353R
HMBC3
HMO7553R
HMBC4
HMO3936R
HMBC5
HMO5136R
HMBC6
HMO7536R
HMG3953R
HMG5153R
HMG6353R
HMO2653R
HMO3953R
HMO5153R
Before contacting, you must have the following:
Serial no., model no., store no., store address, details (photos, leak locations,
damage, store's ambient conditions, etc.)
HMG3953R
REV B DATE: 10/18/24
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Table of Contents
Related Manuals for Structural Concepts Harmony HMBC4
Summarization of Contents
Overview and Environmental Conditions
NSF/ANSI Type I vs. II Environmental Conditions
Details on environmental conditions for NSF/ANSI Type I and Type II classifications.
Compliance and Safety
Compliance Requirements
Ensures adherence to electrical, federal, state, and local codes for safe installation.
General Safety Warnings
Crucial warnings about electrical hazards, moving parts, hot surfaces, and chemical exposure.
Precautions and Disclosures
Operational Precautions
Guidelines on lamp replacement, installation locations, cord maintenance, and temperature readings.
Wiring and Refrigerant Disclosure
Information on wiring diagrams and California refrigerant disclosure statement.
Optimal Case Placement
The 5'-10'-15' Placement Rule
Guidelines for positioning the case away from heat sources and drafts for optimal performance.
Preventive Maintenance: General Notes and Checks
Service Notes and Safety Precautions
General warnings and guidelines for performing maintenance safely.
Refrigerating Equipment Checks
Checks for refrigerating equipment, especially for flammable refrigerants.
Electrical Device Checks
Initial safety checks and procedures for electrical components.
Preventive Maintenance: Component Repairs and Leak Detection
Sealed Component Repairs
Guidelines for repairing sealed components and ensuring safety.
Intrinsically Safe Component Repairs
Procedures for working on intrinsically safe components in hazardous areas.
Cabling and Leak Detection
Checks for cabling integrity and methods for detecting flammable refrigerant leaks.
Preventive Maintenance: Refrigerant Handling
Refrigerant Removal and Evacuation
Procedures for safely removing and evacuating refrigerant from the system.
Refrigerant Charging Procedures
Guidelines for safely charging the refrigeration system with refrigerant.
Serial Label and Technical Information
Serial Label Location and Data
Information on where to find serial labels and the data they contain.
Technical Service and Warranty
Contacting Technical Service
Information on how to contact technical support and required details for service calls.
Accessing Limited Warranty
Instructions on how to find and access the limited warranty information for the case.
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