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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 (propane) gas as the refrigerant.
R-290 (propane) 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 back into the store
until the qualified service technician has arrived and
that technician advises that it is safe to 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 PROPERTY DAMAGE.
Use this manual along with door manual
P/N 0425683 for cases with Innovator Doors
IMPORTANT!
Keep in store for
future reference!
MANUAL - MDS LOW TEMP IO
Micro-Distributed
Reach-In Merchandisers
This manual applies to the
following case models:
For clarity in the documentation, all illustrations use the
RL, RLN, and RLNI nommenclatures for reference.
Installation &
Operation Manual
Shipped With Case Data Sheets
with R-290 (Propane)
Refrigerant
TITLE PAGE
RL2W - RL5W
RLN2W - RLN5W
RLNI4W - RLNI5W
RL2SP - RL5SP
RLN2SP - RLN5SP
RLNI5SP - RLNI5SP
RM2W - RM5W
RMN2W - RMN5W
P/N 3053328_C
April 2019
Spanish P/N 3053329
French P/N 3053330
U L
C
US
LISTED
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Table of Contents
Related Manuals for Hussmann RL2W
Summary of Contents for Hussmann RL2W
- Page 1 If a leak is detected, immediately evacuate following case models: all persons from the store, and contact the local fire RL2W - RL5W department to advise them that a propane leak has RLN2W - RLN5W RLNI4W - RLNI5W occurred.
- Page 2 • Immediately evacuate all persons from the store, and contact the local fire department to advise them that a propane leak has occurred. • Call Hussmann and/or a qualified service agent and inform them that a propane sensor has detected the presence of propane.
- Page 3 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. Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
- Page 4 ONLY frozen products. IMPORTANT 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 © 2019 Hussmann Corporation...
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Page 5: Ansi Z535.5 Definitions
• NOTICE – Not related to personal injury – sweating of doors. Facility operators Indicates[s] situations, which if not avoided, should monitor doors and floor could result in damage to equipment. conditions to ensure safety of persons. Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. -
Page 6: Table Of Contents
Servicing Doors and Frames ......6-4 Condensing Unit Access ........ 2-16 Replacing Door or Door Frame Parts ....6-4 Defrost ............2-17 Replacing Damaged Drain Fitting ..... 6-4 Repairing Aluminum Coils ....... 6-5 WARRANTY P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM... -
Page 7: Installation
Placing refrigerated merchandisers in direct sunlight, Do not store items or flammable near hot tables or near other heat sources could materials atop the unit. impair their efficiency. Do not walk on case. Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. -
Page 8: Exterior Loading
Proposition 65 warning labels to your customers when Do not store items or flammable necessary. For more information on Proposition 65, materials atop the unit. please visit the California State government website. P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM... - Page 9 Shim Here Shim Here It is the installing contractor’s responsibility to consult local agencies for local code requirements. Shim Here 4-Door Shown Back Back Skid/External Base Bottom Front Support Electrical Wireway Front Front Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
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Page 10: Door Adjustment
Splashguard Retainer Support DO NOT place shims under splashguard brackeTs NOTE: Install splashguard support brackets before piping case. Splashguard Support Bracket Screw Splashguard Retainer Bumper Retainer Screw Base Rail P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM... -
Page 11: Joining Instructions
B. Remove shelves (if installed). Bumper Bumper C. Remove display racks and pans from Retainer Retainer ends to be joined. Splashguard Splashguard SIDE VIEW SIDE VIEW D. Remove plenum covers. Figure 1. Prepare Cases Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. - Page 12 G. RLNI Only: Remove screws and inte- rior top panel on both sides of the island Alignment Pin case end to be joined (see Figure 1). RLNI & RLNI P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
- Page 13 Figure 2. Remove Shipping Block (One From Each Side of Island Models) o not use shipping bolts to join cases Shipping Brace RLNI / RLNI Figure 3. Remove Shipping Braces Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
- Page 14 Factory Installed Nut the right end frame as shown Retainer in Figure 4A or 4B. RL / RLN Alignment Pin RLNI Alignment Pin Alignment Pin Figure 4A. Verify Nut Retainer Installation P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
- Page 15 Use all three gaskets When applying an end assembly. Left End Right End Right End Case Left End Case Pad Shoe Sealer Figure 5A, Part 1. Apply Gasket to Left End Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
- Page 16 Make sure area where raceway attaches to end frame is sealed with the wider 1 in. x in. gasket. Detail C Detail C Figure 5A, Part 2. Apply Gaskets to Right End P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
- Page 17 P/N 3053328_C 1-11 RLNI RLNI Left End Case Donut Gaskets Must Be Applied As Shown Gasket Pad Figure 5A. Apply Gaskets Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
- Page 18 Gasket Make sure area where raceway attaches to end frame is sealed with the wider 1 in. x in. gasket. Figure 5B. Apply Gaskets to Right End P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
- Page 19 Use care when pushing the cases together. R L or R M R LN or R MN R LNI Do not cut wires in bumper retainer. Figure 6. Move Cases Together Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
- Page 20 Refer to Section 1 of the Reach-In Installation and Service Manual to install splashguard brackets and bumpers. Section 3 provides direction for installing splashguards, including splashguard Splice Connector – 8. P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
- Page 21 P/N 3053328_C 1-15 RLNI RLNI R LNI Alignment Pin Alignment Pin Alignment Pin Alignment Pin Nut Retainer Nut Retainer Figure 7C. Joining Sequence for RLNI-W Cases Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
- Page 22 Section 3 Splashguard Splashguard provides direction for installing splashguards, including splashguard Splice Connector – 8. shown in Figure 9. Splice Connector Splice Connector Figure 9. Installing Splashguard Splice Connector P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
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Page 23: Installing Bumpers
Optional end bumpers are factory-installed. Bumper Merchandiser Joint Merchandiser Joint Internal Joint Miter Box Trims Bumper End Caps can be adjusted horizontally to eliminate gaps. Full Length Bumpers Starter Bumper Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. -
Page 24: Electrical / Controller / Water / Refrigeration
Cases may be installed as standalone cases with servicing The merchandiser ends, or as part of a lineup. For lineups; Hussmann recommends that the cases be connected to a gateway for defrost coordination, or that partitions are installed between individual cases to prevent frost buildup and other problems that may result from different defrost schedules. -
Page 25: Plug
This includes, but is not limited to, • If in doubt, call an electrician. such items as doors, lights, fans, heaters, and thermostats. P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM... -
Page 26: Case Electronic Controller
Standards When using the digital inputs of the CoreLink Hussmann is not responsible for misuse or device. Case Controller use another transformer in order to Hussmann is not held responsible for deviation from prevent the digital inputs from malfunctioning or being this manual and its intended use. - Page 27 The discharge air temperature is factory set for -3°F for low temperature cases, and 37°F for medium Compressor Run-time Safeties Additional run-time safeties are incorporated to temperature cases. protect the compressor and MDS products. P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
- Page 28 Onboard data logging allows user to review performance data from the past week. User can see Min/Max/Average data along with saving data sets and importing data sets for view. Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
- Page 29 See Boot Sequence Boot Sequence Yellow Status LED Time 5 secs Status Yellow LED 10 secs Illuminated Solid ON 30 secs Power Indicator Green LED Blinking / Normal Operation Indefinitely P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
- Page 30 Note: Not a dry contact switch, power supply 24Vac or 24Vdc required to activate switch If using 24Vdc, pin 31 is GND Network Connector Hussmann Controller Display, maximum 1 terminal per CoreLink RS485 Slave connector Serial port (LAN or RS485)
- Page 31 Relay normally open contact Common relays 1,2,3 and 4 (MAX 10A) Common relays 1,2,3 and 4 (MAX 10A) Relay normally open contact Relay normally open contact Relay normally open contact P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
- Page 32 Hussmann Controller Display, maximum 1 terminal per CoreLink RS485 Slave connector Serial port (LAN or RS485) Remote Display Connection for Hussmann Case Display remote terminal (Vnr) Remote Display Connection for Hussmann Case Display remote terminal (+) Remote Display Connection for Hussmann Case Display remote terminal (-)
- Page 33 2-10 lEctrIcal ontrollEr atEr EfrIgEratIon P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
- Page 34 P/N 3053328_C 2-11 Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
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Page 35: Controller Troubleshooting
2-12 lEctrIcal ontrollEr atEr EfrIgEratIon CONTROLLER TROUBLESHOOTING P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM... -
Page 36: Water - (For Condensers)
The water flow requirements for each case are: 2-door: 1.5 GPM 2-door: 1.0 GPM 3-door: 2.0 GPM 3-door: 1.0 GPM 4-door: 2.5 GPM 4-door: 1.0 GPM 5-door: 3.0 GPM 5-door: 1.5 GPM Balancing Valve Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. - Page 37 Water Line Assembly Inlet Water Line Assembly Inlet Water System Bracket Water System Bracket Condensing Unit Condensing Unit Front of Case Front of Case Water Line Assembly Outlet Water Line Assembly Outlet P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
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Page 38: Pre-Installation System Cleaning
Do not use The installation contractor must consult and be tap water. familiar with the manufacturer’s Material Safety Data Sheets (MSDS) before handling any secondary fluid. The MSDS contains proper disposal and safety methods. Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. -
Page 39: Refrigeration
Water Inlet Water Inlet Water Outlet Water Outlet Electrical Box Electrical Box with Disconnect with Disconnect Switch Switch P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM... -
Page 40: Defrost
Medium Temp application: Setpoint 37°F average that a propane leak has occurred. discharge air temp, 6°F differential • Call Hussmann and/or a qualified service agent Frozen food application: Setpoint -3°F average and inform them that a propane sensor has detected discharge air temp, 6°F differential the presence of propane. - Page 41 EfrIgEratIon DEFROST TERMINATION SENSOR VIEW FROM FRONT, LEFT HAND END FRONT OF THE CASE FRONT OF THE CASE VIEW FROM LH END OF COIL DEFROST TERMINATION SENSOR P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
- Page 42 Secured in Place to avoid Secured in Place to avoid Leaks Leaks Coil Coil Condensing Unit Capillary & Suction Tube DETAIL A DETAIL A Secured in Place to avoid Leaks DETAIL B Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. Condensing...
- Page 43 2-20 lEctrIcal ontrollEr atEr EfrIgEratIon NOTES: P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
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Page 44: Drip Piping And Splashguards
in. per ft ventilation fans may be required to prevent sweating. (20 mm per 1 m). • Avoid long runs of drip piping. Long runs make it impossible to provide the pitch necessary for good drainage. Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. - Page 45 Maintain Clearance Rotate Water Seal towards towards back of to Bottom of Case back of Merchandiser if Merchandiser if required required Field-Installed Water Seal in. Clearance to Floor Floor P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
- Page 46 The installer must provide additional support when “evac” type waste water systems are applied. It is the installing contractor’s responsibility to consult local agencies for local code requirements. Water Seal Water Seal NOT Correct Correct Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
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Page 47: Drip Piping Lineup Arrangements
Floor RLNI Cross Drip Piping (4 merchandisers shown) Floor in. per ft drop 1 = Water Seal 2 = Clean Out Plug 3 = Hub Drain P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM... -
Page 48: Installing Splashguards
Splashguards are joined with a galvanized metal splice connector that comes with the joint kit. Join the splashguards before installing on case. Splashguard Retaining Bracket Splashguard Joint Side Splashguard Detail Splice Connector Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. -
Page 49: Sealing Splashguard To Floor
• If required by local health codes Cove Trim may be sealed to the floor using a silicone type sealer. Sealant must be removed and replaced when servicing. Splashguard Silicone-type Sealer Splashguard Cement Cove Trim P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM... -
Page 50: Start Up / Operation
• Is the cooling water system on and circulating water through the condenser(s)? • Call Hussmann and/or a qualified service agent and inform them that a propane sensor has detected the • Are there any leaks from condenser water presence of propane. -
Page 51: 12 Hours After Startup Checklist
• Check the door operation again to ensure doors open and close properly once the case is down to operating temperature. • Check that all inspection plates and covers have been properly replaced. P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM... -
Page 52: Startup And Operation
Hussmann recommends solid shelves for ice cream. Do not store items or flammable materials atop the unit. Do not walk on case. Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. - Page 53 RLNI-W RLNI-W RLN-W RLNI-SP RLNI-SP RLN-SP LOAD LOAD LOAD LIMITS LIMITS LIMITS COIL COIL COIL P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
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Page 54: Installing Fda/Nsf Required Thermometer
Thermometer – Hussmann Part TM.4911251 Hussmann Corporation • 12999 St. Charles Rock Road • Bridgeton, MO 63044-2483 Hussmann Corporation • 12999 St. Charles Rock Road • Bridgeton, MO 63044-2483 U.S. & Canada U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900E • www.hussmann.com 1-800-922-1919 •... - Page 55 Questions about either code should be addressed to local agencies or other appropriate officials. Keep with merchandiser or give to store manager. DO NOT DESTROY P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
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Page 56: Maintenance
Do NOT use HOT water on COLD glass surfaces. This can cause the glass to shatter and could result in personal injury. Allow glass fronts, ends and service doors to warm before applying hot water. Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. -
Page 57: Cleaning Honeycomb Assemblies
• After cleaning is completed, turn on power and refrigerant to the merchandiser. Screw Adhesive • Verify that merchandiser is working properly. Interior Top Panel SIDE VIEW Honeycomb Retainer P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM... -
Page 58: Cleaning Stainless Steel Surfaces
To maintain product integrity, move all product to a cooler until the unit has returned to normal operating temperatures. Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. - Page 59 NOTES: P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM...
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Page 60: Service
Hussmann recommends against frame heater 5. Remove screws holding fan motor/bracket assembly to plenum and remove assembly. cycling with Innovator doors to prevent door seals from freezing to the frames and tearing. Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. -
Page 61: Replacing Electric Defrost Heaters
Each Bracket to 9. Verify that heater is working correctly. Release or Secure 10. Replace display pans. Bring merchandiser to Heaters operating temperature before restocking Back Heater Front Heater P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM... -
Page 62: Replacing Drain Pan Heater
Drain Heater Offset Drain Heater Offset Heater Clips Heater Clips DETAIL A Heater Clips Heater Clips Drain Heater Offset rro: No refe E rr e n r o c r:e N DETAIL A Reach-In HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. -
Page 63: Servicing Vertical Lighting
(obtained at local building supply store) in. TxSxS (32 mm) Do NOT use Thread Sealer on Drain Fitting! Do NOT use Thread Sealer on Drain Fitting! End Section View P/N 3053328_C U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM... -
Page 64: Repairing Aluminum Coils
P/N 3053328_C REPAIRING ALUMINUM COIL Technique: The aluminum coils used in Hussmann merchandisers may be easily repaired in the field. Materials are available from local refrigeration wholesalers. 1. Locate Leak. Hussmann recommends the following solders and 2. REMOVE ALL PRESSURE. - Page 65 Husmann representative. Hussmann representative. Please include the model and serial Please include the model and serial number of the product. number of the product. Hussmann Corporation, Corporate Headquarters: Bridgeton, Missouri, U.S.A. 63044-2483 01 October 2012...