Hussmann microSC VRL1B Installation & Operation Manual

Hussmann microSC VRL1B 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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Summary of Contents for Hussmann microSC VRL1B

  • Page 1 Æ 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.
  • Page 2: Before You Begin

    • Component parts are designed for propane and non-incendive and non-sparking. Component parts shall only be replaced with identical repair parts. FAILURE TO ABIDE BY THIS WARNING COULD RESULT IN AN EXPLOSION, DEATH, INJURY AND PROPERTY DAMAGE. P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 3 KEEP IN STORE FOR FUTURE REFERENCE Quality that sets industry standards! 12999 St. Charles Rock Road • Bridgeton, MO 63044-2483 U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 www.hussmann.com © 2021 Hussmann Corporation VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 4: Ansi Z535.5 Definitions

    • NOTICE – Not related to personal injury – of any obstructions. Do not damage the Indicates[s] situations, which if not avoided, refrigerant circuit. could result in damage to equipment. P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 5: Installation

    1-inch clearance space on top, at back or either or damage must be made to the carrier. The side of the case. carrier will provide any necessary inspection reports and/or claim forms. VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 6: Self Contained (Location)

    36 in. Clearance at 36 in. Clearance Front at Front Zero Clearance 1-in. Clearance at Sides and Rear at Sides and Rear 36 in. Clearance 36 in. Clearance at Front at Front P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 7: Exterior Loading

    Determine the highest part of the floor. Case ventilation openings must be clear of any obstructions. Do not damage the refrigerant circuit. VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 8: Model Description

    VRL2B and VRL3B also have an adjustable leg leveler at center front and back. Turn the leg levelers clockwise to add length to each leg for leveling. Adjustable Leg Levelers P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 9 Pry (J) bar to lift up case to remove leg levelers. ship loose kit. As a standard offering, this merchandiser is fabricated with hockey puck style leveler. Make sure the adjustable wrench used has a minimum opening of 2 16" 83.19" VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 10: Shelf Installation

    LAMPS This merchandiser has a light switch inside of the left door frame. The switch controls the display lighting and interior lighting. Bottom Shelf Light Switch P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 11: Load Limits

    Air flow Load Limit for VRL Merchandisers VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 12 LEGAL DISCLAIMER: Hussmann shall not be liable for any repair or replacements made without the written consent of Hussmann, or when the product is installed or operated in a manner contrary to the printed instructions covering installation and service which accompanied such product.
  • Page 13: Electrical / Refrigeration

    This • If in doubt, call an electrician. includes, but is not limited to, such items as doors, lights, fans, heaters, and thermostats. VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 14 P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 15 6. Once recovered, close the tank valve and remove the guage from the tank and connect nitrogen tank to the system to purge it with nitrogen. 7. Pull vacuum to a minimum of 200 microns or lower. VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 16 If a Schrader valve is used on the build-up. compressor service tube, it must be removed and the previous steps followed in order to braze the service tube shut. P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 17 SENSOR FIX IN THE WALL AIR DISCHARGE 3.37 3.37 FIX IN THE FIX IN THE SUCTION TUBE SUCTION TUBE 3.37 FIX IN THE SUCTION TUBE DETAIL A DETAIL A DETAIL A VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 18 EDGE OF EVAP BASE SENSOR GAP BTW EDGE OF BASE AND SENSOR EVAP BASE EDGE LINE FIX IN THE WALL P/N 3041402 FIX IN THE SCALE 1: 2 .29 SUCTION LINE 3032520_B P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 19 The Differential is the non-adjustable pre programmed temperature. • Supply voltage control LVD c. The Control is designed to read and display • Presence of an open collector output a cabinet temperature not a product temperature. VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 20: Specifications

    Reprinted with permission from Eliwell - 2017. • Confirms commands application to be loaded. P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com Measurement range: NTC: -50.0°C ... +110°C; PTC: -55.0°C ... +150°C; PT1000: -60.0°C ... +150°C (on 3-digit display with +/- sign) Accuracy: ±1.0°...
  • Page 21: Mechanical Characteristics

    This means, for example, that the error introduced by the probe must be added to the error of the instrument. RTN400 Page 7/130 VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 22 Not Used TTL Unicard/DMI/Multi Function Key connection OUT4 Shared Terminal 34-35-36 RS485. Connection 1 - Supervision Gateway. N.O. OUT4 37-38-39 RS485. Connection 2 - Supervision Gateway. P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com RTN400 Page 8/130...
  • Page 23 N.B.: When the instrument is powered on it performs a lamp test, during which time the display and LEDs will flash for several seconds to check that they all function correctly. VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 24: Kdeplus Buttons

    (if active) Opens the Programming Menu start-up it enables (User and Installer parameters) the user to select the • Opens Machine Status menu • Confirms commands application to be loaded. P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 25 Deep cooling cycle • Opens Machine Status menu (User and Installer parameters) the user to select the Start/end defrost • Confirms commands application to be loaded. VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. RTN400 Page 21/130...
  • Page 26 EfrIgEratIon NOTES: P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 27: Maintenance

    AbrAsive cleAners or scouring pAds ever use cAustic sodA kerosene gAsoline thinner solvents detergents Acids chemicAls or AbrAsives o not use AmmoniA bAsed cleAners on Acrylic pArts VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 28 • Take care to minimize direct contact between condenser unit. All VRL models have the same fan motors and cleaning or rinse water. access panel design for commonality between merchandisers. P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 29 Pulling on refrigeration lines or others parts will cause damage to the unit. Holding Screw FRONT Condensing Unit Handle VRL2B Refrigeration Unit Holding Screw FRONT Holding Screw VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 30: Tips And Troubleshooting

    Are the standard shelves in the correct places? Is the product stocked properly? Is the bottom shelf at the proper location? 6. Confirm that the defrost schedule is properly set. Adjusting Closing Torque P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 31 4 are replaceable, we recommend that a severely clicks. If the torque cam and hinge socket are rusted torque rod assembly be replaced. severely rusted, both components should be replaced. VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 32 5. If a door passes the three “open / close” tests, and there is no excessive movement at the top hinge pin, then it is highly unlikely that any components require replacement. P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 33 Confirm door switches function. Verify unit doors and lids work and are sealed correctly. Verify that all the panels, shields and covers are in place. Technician Notes: Form HSCW03 Rev-29 OCTOBER13 VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 34 Display Panel Removed 5. Replace the LED with like fixture, and re-attach connection. 4. Return power to the merchandiser. 6. Replace the display panel cover. 7. Return power to the merchandiser. P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 35: Defrost Heater Replacement

    1. Remove screws from drip pan. The screws unscrew them from terminal block by using are located 2 of each side, the rest in the a screw driver. door side (front). Door Side Drain Side VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 36 Pull up the drip pan heater, and detach the clips from the heater. The function of the clips is to keep drain pan heater attached to edge of pan. P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 37 Wiring diagrams are shown on the last pages of this manual. After covers are reinstalled, turn power on and verify that heaters are working properly. VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 38: Technical Information

    P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 39 3013744 Evaporator Coil 0547179 Led Light Display 3004888 Evaporator Coil 0547180 Led Light Display 3004891 Evaporator Fan Motor 900 RPM 3055125 Led Light Display 3004897 Evaporator Fan Motor 1200 RPM 3055126 Magnetic Clip for Led Light 0523762 Evaporator Fan Blade 8.25" 3055130 Evaporator Fan Blade 7.00" 3055131 Evaporator Fan Motor Bracket 3058806 Distributor Orifice 1/4 3020663 Capillary Tube .050" x 120 3020534 Capillary Tube .054" x 130 3037649 Filter Drier 704‐200 0530462 VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 40 Distributor Orifice 1/4 3020663 Front Grill Assy 1 Doors 3041170 Capillary Tube .050" x 120 3020534 Front Grill Assy 2 Doors 3018400 Capillary Tube .054" x 130 3037649 Front Grill Assy 3 Doors 3016857 Filter Drier 704‐200 0530462 Ext Rear Bottom Panel 1 Doors 3041401 Ext Rear Bottom Panel 2 Doors 3020018 Ext Rear Bottom Panel 3 Doors 3015027 P/N 3034040_H Models U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com VRL1B VRL2B VRL3B Refrigeration Condenser Unit Assy LH 3016595 Condenser Unit Assy RH 3016596...
  • Page 41 P/N 3034040_H Dimensions VRL Cross Section Dimensions shown as inches and (mm). VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 42 EchnIcal nforMatIon Dimensions VRL Plan View Dimensions shown as inches and (mm). P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 43: Physical Data

    ASHRAE 72 method. Serial plate Total Amps obtained under UL471 testing conditions. Evaporator Fans VRL1B VRL2B VRL3B (2 Condensing Units for VRL3) Number of Motors Amperes 0.26 0.26 Watts Compressor LRA Compressor RLA 4.45 VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 44 OPTIONAL LED DISPLAY OPTIONAL LINE 1 NEUTRO (LINE2) NEUTRO (LINE2) LINE 1 BL (-) BL (-) POWER SUPPLY POWER SUPPLY R (+) R (+) DOORS AND FRAME HEATERS VRL1B VRL2B 3037551_P P/N 3034040_H U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com...
  • Page 45 P/N 3034040_H EchnIcal nforMatIon VRL Merchandisers HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
  • Page 46 To obtain warranty information or other support, contact your Hussmann representative. Please include the model and serial number of the product. Hussmann Corporation, Corporate Headquarters: Bridgeton, Missouri, U.S.A. 63044-2483 01 October 2012...

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Microsc vrl2bMicrosc vrl3b

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