Hussmann microSC VRL3B Installation & Operation Manual

Hussmann microSC VRL3B Installation & Operation Manual

Low temperature self contained glass door merchandisers with r-290 refrigerant

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Æ
VRL
Low Temperature Self Contained
Glass Door Merchandisers
with R-290 Refrigerant
WARNINGS:
If the information in these instructions are not followed
exactly, a fire or explosion may result, causing property
damage, personal injury or death.
Installation and service must be performed by a qualified
installer or service agency.
READ THE ENTIRE MANUAL BEFORE
INSTALLING OR USING THIS EQUIPMENT.
The unit uses R-290 gas as the refrigerant. R-290 is
flammable and heavier than air. It collects first in low
areas but can be circulated by the fans. If propane gas
is present or even suspected, do not allow untrained
personnel to attempt to find the cause. The propane
gas used in the unit has no odor. The lack of smell does
not indicate a lack of escaped gas. If a leak is detected,
immediately evacuate all persons from the store, and
contact the local fire department to advise them that
a propane leak has occurred. Do not let any persons
Installation &
back into the store until the qualified service technician
has arrived and that technician advises that it is safe to
Operation Manual
return to the store. No open flames, cigarettes or other
possible sources of ignition should be used inside or in
the vicinity of the units.
FAILURE TO ABIDE BY THIS WARNING COULD
RESULT IN AN EXPLOSION, DEATH, INJURY AND
P/N 3034040_H
PROPERTY DAMAGE.
June 2021
IMPORTANT
Keep in store for future reference!
Spanish 3034045
MANUAL - SELF CONTAINED R290 VRL I/O

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Table of Contents
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Summarization of Contents

Safety Warnings and Precautions
General Safety Warnings
Crucial warnings about fire, explosion, injury, and death risks from improper use or handling.
Installation Guide
Installation Prerequisites and Safety
Includes warnings, PPE, compliance, location requirements, and shipping damage handling.
Physical Installation Steps
Covers unloading, skid removal, leveling, casters, and required tools.
Final Setup and Stocking
Includes shelf installation, lighting, stocking procedures, load limits, and start-up checklist.
Electrical and Refrigeration Specifications
Electrical Connection and Safety
Details plug requirements, circuit needs, and safety warnings for electrical work.
Refrigerant System Service
Covers component replacement, refrigerant recovery, and charging procedures.
Controller Operation and Features
Controller Overview and Settings
Details controller functions, features, input/output characteristics, and technical data.
Interface and Key Functions
Explains LED indicators, KDEPlus button functions, and key-activated controls.
Maintenance Procedures
General Cleaning and Safety
Covers safety warnings, general care, cleaning restrictions, and recommended practices.
Specific Maintenance Tasks
Details shelf cleaning, condenser coil cleaning, troubleshooting, and door adjustments.
Maintenance Checklists and Component Replacement
Includes preventative maintenance checklist and procedures for replacing lamps, heaters, and frame heaters.
Technical Information
Replacement Parts Identification and Lists
Visuals and lists of replacement parts, including R290 specific components and sheet metal parts.
Electrical and Physical Data
Detailed Unit Specifications
Includes defrost, physical, electrical, and evaporator fan specifications.
Wiring Diagrams
Provides wiring diagrams for VRL1B/VRL2B and VRL3B models.

Table of Contents