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2-4

efRigeRation

/ e

lectRical

P/N 0387183_V

U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM

BRANCH LINE PIPING

Suction Line – All Defrosts
• Pitch in direction of flow.
• May be reduced by one size at one third of case run

load and again after the second third. Do NOT
reduce below evaporator connection size.

• Suction returns from evaporators enter at the top

of the branch line.

Liquid Line – Off-time and Electric Defrost
• May be reduced by one size after one half the case

load run. Do not reduce below
evaporator connection size.

• Take-offs to evaporators exit the bottom of the liq-

uid line. Provide an expansion loop for each evapo-
rator take-off (minimum 3 in. (76 mm) diameter).

Liquid Line – Koolgas Defrost
• Maximum of 6 evaporators per Branch System.
• Increase the liquid line size inside the case by two

sizes over the branch size.

Branch Size

In Case Size

1/2

7/8

5/8 1

1/8

7/8 1

3/8

1/8 1

5/8

3/8 2

1/8

• Take-offs to evaporators exit the bottom of the liq-

uid line. Provide an expansion loop for each evapo-
rator take-off (minimum 3 in. (76 mm) diameter).

The following information is applicable only

for piping Hussmann merchandisers to

Hussmann refrigeration equipment.

Permit Number:

20-05195

Содержание RFLNS

Страница 1: ...183_V February 2017 Spanish P N 0517045 French P N 0527085 IMPORTANT Keep in store for future reference Æ MANUAL I O REACH IN Use this manual along with door manual P N 0425683 for cases with Innovator Doors Use this manual along with door manual P N 3008521 for cases with EcoVision II Doors RMTD Permit Number 20 05195 ...

Страница 2: ...Permit Number 20 05195 ...

Страница 3: ...Thermostat 2 6 Defrost Termination Thermostat 2 7 Control Settings Medium Temperature 2 7 Control Settings Low Temperature 2 7 Merchandiser Electrical Data 2 9 Field Wiring 2 9 Electrical Connections 2 9 Identification of Wiring 2 9 Wiring Color Code 2 10 DRIP PIPING AND SPLASHGUARDS Waste Outlet and Water Seal 3 1 Installing Drip Piping 3 1 Drip Piping Lineup Arrangements 3 4 Installing Splashgua...

Страница 4: ... Page 1 1 Added Additional Statement to Fed State Regulations Ambient Conditions note Page 4 1 REVISION U DECEMBER 2016 1 Page 1 24 Added Splashguard Brackets for RMT REVISION T AUGUST 2016 1 Page 1 6 new diagram and note Bottom front supports must be shimmed if not in full contact with the floor REVISION S APRIL 2016 1 PAGE 1 1 Revised UL PAGE 2 5 Valve Adjustment 2 Updated text and drawings to a...

Страница 5: ...g stainless steel rails Page 5 2 5 Added heater front and rear drawing Page 6 3 6 Updated warnings and cautions throughout 7 Added new back cover REVISION E JANUARY 2009 1 Added page division lines for thermometer Page 4 3 2 Added heater front and rear drawing Page 6 3 3 Changed shimming drawing Page 1 3 REVISION D SEPTEMBER 2007 1 Added front panel text and illustration Page 1 2 2 Clarified shimm...

Страница 6: ...Permit Number 20 05195 ...

Страница 7: ... in direct sunlight near hot tables or near other heat sources could impair their efficiency Like other merchandisers these are sensitive to air dis turbances Air currents passing around merchandisers will seriously impair their operation Do NOT allow air conditioning electric fans open doors or windows etc to create air currents around the merchandisers To prevent sweating on the exterior surface...

Страница 8: ...kaging Remove all separately packed accessories such as kits and shelves Locate the shipping block in the center of the heat exchanger see illustration and remove it before piping the merchandiser This block was installed to minimize shipping vibration This product may contain chemicals known to the State of California to cause cancer birth defects or other reproductive harm This warning is the re...

Страница 9: ...tive to see if store merchandisers have this kit option The case height without these components installed on top is 82 75 in 2102 mm Case depth is 35 5 in with handles wireway pan and external frames removed Follow the steps below to decrease the merchandiser profile for narrow access 1 Remove the door handles 2 Remove the front bumper Pull from the bottom and set aside 3 Remove the lower front p...

Страница 10: ...the wireway pan out and remove it from the case Bumper brackets and supports are attached to wireway pan Removing the pan will remove the entire assembly 8 Remove the back external braces from the rear of the case as shown below Braces will slide straight back away from the case when nuts and screws are removed 6 nuts and 1 bottom screw per external brace Bottom screw is located approximately 10 i...

Страница 11: ...rovided 3 Replace the conduit connectors and plastic gromets to the wireway pan 4 Replace wireway cover bumper and door handles LEVELING Merchandisers must be installed level to ensure proper operation of the refrigeration system and to ensure proper drainage of defrost water When leveling mer chandisers use a carpenter s level as shown Metal leveling shims or wedges are provided with each merchan...

Страница 12: ...they are positioned at a base component crossbar This transfers the weight directly from the loaded case through to the floor Placing shims at other locations will cause uneven distribution of weight leading to piping leaks as well as sagging or wracked doors Bottom front supports must be shimmed if not in full contact with the floor Front Back Base Component Shim Here Shim Here Shim Here Permit N...

Страница 13: ...be joined in line yielding one long continuous display requiring only one pair of ends Joining kits and instructions are shipped with each merchandiser To join like fixtures a joining kit is required To join unlike fixtures or like fixtures operating at dif ferent temperatures a 2 inch 51 mm partition kit is required To join same temperature merchandisers on different defrost cycles a plexiglass p...

Страница 14: ...ons NOTE Be sure first merchandiser has been leveled according to the main installation instruction Carefully unpack and inspect the joining parts listed above to verify completeness and that there is no damage 1 Prepare cases for joining both sides of islands as shown in Figure 1 A Removebumpers rails packing materials and splashguards from the both cases B Remove shelves if installed C Remove di...

Страница 15: ...e necessary The RLTM models have upper and lower back panels that must be removed F Remove joint molding from any door frames that will be joined to another case G RLNI Only Remove screws and inte rior top panel on both sides of the island case end to be joined see Figure 1 E G G RLNI Only Alignment Pin F E RL RM RMF RLN RMN and RLNI RLTM RMTM RMTD Permit Number 20 05195 ...

Страница 16: ...t of the cases in the line up The front base frame should be on the chalk line 3 Once cases are close to final placement remove the shipping braces from the ends to be joined see Figure 3 Discard bolts and flat washers used to hold shipping braces Bolts are too long to be used for joining RMN Figure 3 Remove Shipping Braces Do not use shipping bolts to join cases Shipping Brace Figure 2 Remove Shi...

Страница 17: ...lready installed make sure Nut Retainers and Alignment Pins are in place in the right end frame as shown in Figure 4A or 4B Figure 4A Verify Nut Retainer Installation Factory Installed Nut Retainer RLT has no Alignment Pin RLTM RMTM RL RM RMF and RLN RMN Alignment Pin Permit Number 20 05195 ...

Страница 18: ...1 12 Installation P N 0387183_V U S Canada 1 800 922 1919 Mexico 1 800 890 2900 WWW HUSSMANN COM RLNI Permit Number 20 05195 ...

Страница 19: ...he right end frame as shown in Figure 5A Part 2 5B or 5C Part 2 Figure 5A Part 1 Apply Gasket to Left End of RL RM RMF and RLN RMN RL RM RMF and RLN RMN F R O N T Right End Left End F R O N T 1 Donut 2 1 in x in 3 in x in Use all three gaskets When applying an end assembly Left End Case F R O N T Pad Shoe Sealer Left End Case Right End Case F R O N T Right End Left End F R O N T 1 Donut 2 1 in x i...

Страница 20: ...m gasket Do not butt gaskets always lap joints Remove paper backing after gasket is applied to keep gasket free of debris Gasket has high tack adhesive and must be properly placed the first time Overlap Gasket F R O N T Right End Left End F R O N T 2 3 Detail D 1 Overlap Foam Gasket 3 as Shown 1 2 3 Detail A 1 2 3 Donut Gasket Foam 906 inch x 1 2 inch x 200 inch Foam 1 2 inch x 1 4 inch Right End ...

Страница 21: ...Reach In P N 0387183_V 1 15 HUSSMANN CORPORATION BRIDGETON MO 63044 2483 U S A Figure 5A Apply Gaskets to Left End of RLNI RLNI Left End Case Gasket Pad Permit Number 20 05195 ...

Страница 22: ...tallation P N 0387183_V U S Canada 1 800 922 1919 Mexico 1 800 890 2900 WWW HUSSMANN COM 1 i n x i n i n x i n Figure 5B Apply Gaskets to Right End of RLNI RLNI Right End Case Gasket Pad Permit Number 20 05195 ...

Страница 23: ...skets must be applied Install Donut Gasket as Shown seat into groove Apply Unitized Gasket Pad 4 Overlap m Gasket 3 s Shown 1 2 3 Donut Gasket Foam 1 inch x 1 2 inch Foam 1 2 inch x 1 4 inch Install Donut Gasket as Shown Install Donut Gasket seat into groove Install Donut Gasket seat into groove etail A Detail B et 3 overlap at all intersections o not butt gaskets 1 2 3 2 Detail C Left End Case Pa...

Страница 24: ... at the top front Figure 5C Part 2 Apply Gasket to Right End of RLTM RMTM RMTD RLTM RMTM RMTD F R O N T Right End Case to Case Joint or End Panel Apply Donut Gasket Foam Gaskets and Gasket Pad to Right End Only Install Donut Gasket as Shown seat into groove Apply Unitized Gasket Pad 4 Overlap Foam Gasket 3 as Shown 1 2 3 Install Donut Gasket seat into groove Gasket 3 must overlap Gasket 3 Detail A...

Страница 25: ...Reach In P N 0387183_V 1 19 HUSSMANN CORPORATION BRIDGETON MO 63044 2483 U S A Figure 6 Move Cases Together R L or R M R LN or R MN R LNI Do not cut wires in bumper retainer Permit Number 20 05195 ...

Страница 26: ...op front position D Go to the middle back wall position and join E Join at the lower back wall F Finally join at the top back wall posi tion Following the same sequence tighten each capscrewfullyuntilthemerchandisers are joined with a snug fit and gaskets are compressed When joining two RLNIE models nut retainers and alignment pins are used on one case only 8 Refer to Section 1 of the Reach In Ins...

Страница 27: ...n P N 0387183_V 1 21 HUSSMANN CORPORATION BRIDGETON MO 63044 2483 U S A A Alignment Pin R LNI A Alignment Pin E B Nut R etainer 6 5 F D C RLNI Figure 7C Joining Sequence for RLNIM Cases Permit Number 20 05195 ...

Страница 28: ...tallation and Service Manual to install splashguard brackets and bumpers Section 3 provides direction for installing splashguards including splashguard Splice Connector 8 shown in Figure 9 Note that RLTM cases have steel splashguards that do not use a splice connector 6 7 7 6 Figure 8 Installing J Molding Figure 9 Installing Splashguard Splice Connector Spl i ce Connect or Spl ashguar d SI DE VI E...

Страница 29: ...TS RL RLN 1 Attach retainer splashguard RI to bracket support splashguard RL RM using three screws 2 Install splashguard support brackets before piping case The leveling brackets have a maximum extension of one 1 inch 25 mm for uneven floors DO NOT place shims under splashguard brackets Permit Number 20 05195 ...

Страница 30: ...t of the case until the forward most flange sits flush with the back of the color panel 3 Align the retainer assembly with and attach to the support bracket using 10 screws Then install a 8 screw through the color panel into the top retainer flange DO NOT place shims under splashguard brackets Splashguards Installation Splashguard Splice Connector Side Detail 1 S lide the splashguard support brack...

Страница 31: ...sections Continue installing bumpers the length of the line up Do NOT install the last bumper sections at this time These sections will be installed in the last step Once all except the last section of bumper have been installed refrigerate the case line up for at least six 6 hours The last sections of bumper should be kept inside a refrigerated case or cooler during this time to allow the bumpers...

Страница 32: ...Permit Number 20 05195 ...

Страница 33: ...of the shroud as shown in Figure 2 2 REFRIGERATION ELECTRICAL When brazing pipes be sure to use the insulation blanket shipped with the merchandiser to prevent damage to the plastic case bottom Refrigeration lines are under pressure Depressurize and recover refrigerant before attempting any connection or repair Refrigerant vapor is hazardous to your health and can cause death Avoid breathing refri...

Страница 34: ...oud over the case piping before making the final connection Once all connections are made and insulation has been applied to the piping run a bead of sealant around the bottom of the shroud Put the shroud into position and attach with six screws In the event the shroud was not placed over the piping prior to final connection the shroud can be cut carefully and then installed with adhesive holding ...

Страница 35: ... the store or according to ASHRAE guidelines Oil Traps P traps oil traps must be installed at the base of all suction line vertical risers Pressure Drop Pressure drop can rob the system of capacity To keep the pressure drop to a minimum keep the refrigerant line run as short as possible using a minimum number of elbows Where elbows are required use long radius elbows only INSULATION With GAS Defro...

Страница 36: ... reduce below evaporator connection size Take offs to evaporators exit the bottom of the liq uid line Provide an expansion loop for each evapo rator take off minimum 3 in 76 mm diameter Liquid Line Koolgas Defrost Maximum of 6 evaporators per Branch System Increase the liquid line size inside the case by two sizes over the branch size Branch Size In Case Size 1 2 7 8 5 8 1 1 8 7 8 1 3 8 1 1 8 1 5 ...

Страница 37: ...ote When using high glide refrigerants e g R 407A R 448A use the evaporator pressure and subtract the dew point from the coil outlet refrigerant temperature to measure the superheat level Attach two sensing probes either thermocouple or thermistor to the evaporator Position one under the clamp holding the expansion valve bulb securely tape the other to the coil inlet line Some hunting of the expan...

Страница 38: ...TION THERMOSTAT The thermostat body is located in the electrical race way near the right hand end of the merchan diser Its sensing bulb is located behind the right end interior back panel M M M Right end of Case Defrost Termination Thermostat Location 2 Door RLTM 3 4 5 Door RLTM Left end of Case Permit Number 20 05195 ...

Страница 39: ...line runs Seasonal changes Merchandiser temperature lower than recommended When practical defrost when store is closed Low pressure control settings are applicable to outdoor condensing units where ambient does not fall below 0 deg F CONTROL SETTINGS LOW TEMPERATURE Conventional Single Compressor Measure Discharge Air Temperature at the center of the case at the discharge honeycomb Merchandiser te...

Страница 40: ...stable compressor loading and sufficient defrost gas When practical defrost when store is closed CONTROL SETTINGS LOW TEMPERATURE Parallel Compressor Rack Measure Discharge Air Temperature at the center of the case at the discharge honeycomb Merchandiser temperature must be controlled by a mechanical or electronic pressure regulator or thermostat that will be mounted on the rack Standard Electric ...

Страница 41: ...the defrost termination thermostats are wired in series ALWAYS CHECK THE SERIAL PLATE FOR COMPONENT AMPERES Electric Defrost is standard for low temperature merchandisers and requires temperature termination Gas defrost is optional Off Time Defrost is standard for medium temperature merchandisers and is time terminated When two or more merchandisers with full length wireways are installed in line ...

Страница 42: ...to the color band Pink Refrig Thermostat Low Temp Orange or Light Blue Refrig Thermostat Norm Temp Tan Lights Dark Blue Defrost Term Thermostat Maroon Receptacles Purple Anti Sweat Heaters Yellow Defrost Heaters 120V Brown Fan Motors Red Defrost Heaters 208V Green Ground Either colored Sleeve Or Colored Insulation ELECTRICIAN NOTE Use copper conductor wire only CASE MUST BE GROUNDED These are mark...

Страница 43: ...e Double water seals in series will cause an air lock and prevent draining Pitch the drip piping in the direction of flow There should be a minimum pitch of 1 4 in per ft 20 mm per 1 m Avoid long runs of drip piping Long runs make it impossible to provide the pitch necessary for good drainage Provide a suitable air break between flood rim of the floor drain and outlet of drip pipe To meet code on ...

Страница 44: ... 2 in of clearance from the bottom of the trap to the floor as shown NOTE It may be necessary to rotate water seal trap inside the tee a few degrees to ensure clearance at two locations There must be clearance 1 between the bottom of the water seal and the floor and 2 between the top of the water seal outlet and the bottom of the merchandiser Do not over rotate or gravity seal may be compromised A...

Страница 45: ... 6 Installed drip piping may require additional support depending on the number and location of the hub floor drains The installer should always provide adequate support to all drip piping arrangements to prevent excess stress on all drip piping components The installer must provide additional support when evac type waste water systems are applied It is the installing contractor s responsibility t...

Страница 46: ...ustrations are for reference only Piping may vary with location and access to hub drain s Each merchandiser waste outlet must be individually piped to a hub drain if 1 4 in drip pip ing pitch cannot be maintained NOTE No more than two merchandiser are to be piped per water seal Do not install water seal between two merchandiser waste outlets that are piped together Double water seals in series wil...

Страница 47: ... refriger ation work has been completed re install the front color panel then install the splashguards First position top of splashguard over the top edge of the bracket second push the lower edge of the splashguard toward the bottom of the bracket until it snaps into place Splashguards are joined with a galvanized metal splice connector that comes with the joint kit Join the splashguards before i...

Страница 48: ...d replaced when servicing Optional stainless steel splashguards may be sealed to the floor using a vinyl cove base trim The size of trim needed will depend on how much the floor is out of level To install the trim to the splashguard Remove all dirt wax and grease from the area of the splashguard where adhesion will be necessary This is to ensure a good and secure installation Apply a good contact ...

Страница 49: ...r discharge and return flues must remain open and free of obstruction at all times to provide proper refrigeration and air curtain performance Do not allow product packages signs etc to block these grilles Do not use non approved shelving baskets display racks or any accessory that could hamper air curtain performance Do not prop doors open while stocking And keep the doors closed as much as possi...

Страница 50: ...4 2 Start up Operation P N 0387183_V U S Canada 1 800 922 1919 Mexico 1 800 890 2900 WWW HUSSMANN COM Fan RLTM RMTD Load Limits RLTIM Load Limits RLTIM Load Limits Fan Fan Permit Number 20 05195 ...

Страница 51: ... U S Canada 1 800 922 1919 Mexico 1 800 890 2900E www hussmann com 2007 Hussmann Corporation Thermometer Hussmann Part TM 4911251 INSTALLING FDA NSF REQUIRED THERMOMETER The following pages provide the same information that ships with the thermometer This requirement does not apply to display refrigerators intended for bulk produce refer to Page 1 1 Please note that the tape cannot be exposed afte...

Страница 52: ...hermometer may need to be moved several times to find the warmest location Mounting options include flexible plastic for price tag molding application magnet applied to back of flexible plastic for steel end wall and double stick tape Tape must not be exposed after installation Questions about either code should be addressed to local agencies or other appropriate officials Important Please read Ke...

Страница 53: ...her cleaners or abrasives may damage the Always Clear surface and or void the warranty Refer to manual that ships with doors Interior Surfaces The interior surfaces may be cleaned with most domestic detergents ammonia based cleaners and sanitizing solutions with no harm to the surface Exterior Surfaces The exterior surfaces should be cleaned with a mild detergent and warm water to protect and main...

Страница 54: ...er Rinse with hot water but do NOT flood Never introduce water faster than the waste outlet can remove it Allow merchandisers to dry before resuming operation After cleaning is completed turn on power and refrigerant to the merchandiser Verify that merchandiser is working properly CLEANING HONEYCOMB ASSEMBLIES Honeycombs should be cleaned every six months Dirty honeycombs will cause merchandisers ...

Страница 55: ...brush to clean debris from coils Do not puncture coils Do not bend fins Contact an authorized service technician if a coil is punctured cracked or otherwise damaged Do NOT use chlorine or ammonia based cleaners to clean aluminum coils ICE in or on the coil indicates the refrigeration and defrost cycle is not operating properly Contact an authorized service technician to determine the cause of icin...

Страница 56: ...5 4 Maintenance P N 0387183_V U S Canada 1 800 922 1919 Mexico 1 800 890 2900 WWW HUSSMANN COM NOTES Permit Number 20 05195 ...

Страница 57: ...n 11 Close large air gaps under fan plenum Warmer air moving into refrigerated air reduces effective cooling If the plenum does not rest against the case bottom without gaps apply foam tape to the bottom of the fan plenum to reduce improper air movement however defrost water should not be blocked by fan plenum Do NOT seal fan plenum so that water can not drain 12 Replace display pans Bring merchan...

Страница 58: ...enum Warmer air moving into refrigerated air reduces effective cooling If the plenum does not rest against the case bottom without gaps apply foam tape to the bottom of the fan plenum to reduce improper air movement however defrost water should not be blocked by fan plenum Do NOT seal fan plenum so that water can not drain 12 Replace display pans Bring merchandiser to operating temperature before ...

Страница 59: ...eater is working correctly 10 Close air gaps under fan plenum Warmer air moving into refrigerated air reduces effective cooling If the plenum does not rest against the case bottom without gaps apply foam tape to the bottom of the fan plenum to reduce improper air movement Use silicone sealant to close other gaps 11 Replace display pans Bring merchandiser to operating temperature before restocking ...

Страница 60: ...ding heater to horizontal 5 Remove heater from coil brackets 6 Position new heater in brackets 7 Bend tabs back to vertical to hold heater in bracket 8 Push back in alignment with plenum baffles and reinsert coil mounting screws 9 Turn on power 10 Verify that heater is working correctly 11 Close air gaps between the coil covers and the plenum baffles with silicone sealant 12 Replace display pans B...

Страница 61: ...heater under heater clips Be sure offset is properly positioned around the drain 4 Reconnect power 5 Verify that heater is working correctly Always disconnect the electrical power at the main disconnect when servicing or replacing any electrical component This includes but is not limited to such items as fans heaters thermostats and lights A DETAIL A Drain Heater Offset Heater Clips rro No refe E ...

Страница 62: ... to specific warranty supplied with the door The manufacturers have a warranty against moisture penetration a warranty against tempered glass breakage and a warranty on ballasts Lamps are not covered by Hussmann or the door manufacturer REPLACING DAMAGED DRAIN FITTING The following procedure is for the field repair of a broken drain fitting 1 Use a drill with a 1 7 8 inch 48 mm hole saw to drill o...

Страница 63: ...te P O Box 2102 Irving TX 75062 Phone 1 800 527 9916 NOTE Hussmann Aluminum melts at 1125 F 607 C Aladdin 3 in 1 rod at 732 F 389 C X Ergon Acid core at 455 F 235 C Technique 1 Locate Leak 2 REMOVE ALL PRESSURE 3 Brush area UNDER HEAT 4 Use PRESTOLITE TORCH ONLY Number 6 tip 5 Maintain separate set of stainless steel brushes and USE ONLY ON ALUMINUM 6 Tin surface around area 7 Brush tinned surface...

Страница 64: ... 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 Permit Number 20 05195 ...

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