FZR Series Undercounter Freezer
Contents
1. for routine cleaning of the air cooled condenser and related parts the refrigeration system requires no service or maintenance The system uses a thermostatic expansion valve and is critically charged Access fittings are provided for ease of service However the connection of refrigeration service hoses to the fittings will almost invariably result in a significant change in the system charge This change can adversely affect the performance of your freezer Therefore Follett recommends that if hoses are ever connected to the refrigeration system for service the refrigerant should be recovered the system evacuated and recharged by weighing in the correct refrigerant charge Note Do not charge the system by pressures Checking refrigeration system pressures 1 Remove the rear access panel Fig 12 2 Turn the power switch to the on position 3 Following the instructions on page 5 verify that the temperature controller is set to the original factory cut in setting of 23 C 9 F 4 Allow the freezer to operate and stabilize at least 60 minutes verifying the cut out temperature is being reached 5 Connect refrigerant hoses to access fittings and measure air temperature at condenser intake grille 6 Verify correct pressures with the temperature chart below 7 Troubleshoot refrigeration system as needed Note Do not attempt to obtain correct refrigeration pressures by adjusting the system charge Condenser inlet air tem2. set point only To lock the controller 1 Press the UP DOWN ARROW in the middle until POF displays 2 Programmer is now locked To unlock the controller 1 Press UP DOWN ARROW in middle until PON displays 2 Programmer is now unlocked Controller programming key degrees C optional accessory A controller programming key is available from Follett to provide fast and easy reprogramming of factory settings in degrees C part 00155648 Programming key from a freezer upload 1 Set the controller to the desired cut out temperature using the controller key pad 2 Remove 6 screws from panel holding controller to access back of controller 3 With controller ON insert key into 5 PIN receptacle on controller back 4 Push UP ARROW on controller front uPL displays followed by end 5 Press SET end stops flashing 6 TURN OFF freezer and remove key 7 Turn freezer back on 8 Programming key is now programmed Note An Err message displays for failed programming Push UP ARROW again to restart upload or remove key and abort Operation The temperature controller and probe indicate when the refrigeration system is required to turn on and off The refrigeration system removes heat from the cabinet interior and rejects it to the surrounding room air When the cabinet interior temperature reaches 2 2 C 4 F above the controller set point the probe signals the controller to turn the refrigerat
3. volume FZR4 ADA 31 25 height for freestanding use or installation below 34 864mm high ADA compatible counter 3 3 cu ft usable cubic volume Electrical specifications 115V 60Hz 1 phase Full load amps 8 0 Minimum circuit ampacity 15 amp Maximum size of branch circuit overcurrent device 15 amp Refrigeration specifications Refrigerant R404A Charge size 10 oz Maximum design pressures High side 383psi Low side 175psi Installation specifications Ambient temperature must not exceed 100 F 38 The front louvered panel must be kept free of any cabinet trim or obstructions to ensure proper ventilation of the refrigeration system A Important cautions e Equipment must be wired according to local and NEC codes e Always disconnect power before servicing freezer Installation Installing legs required 1 Remove legs from plastic bag packed inside freezer 2 Tip freezer back and screw legs in all the way to stop they will extend 1 8 below base of freezer 3 Adjust legs as needed to level freezer in both directions To access legs remove the lower front panel Turn legs clockwise to extend legs Installing shelves required 1 Remove shelves and shelf brackets packed inside freezer 2 Install shelf brackets in pilasters insert top tab squeeze and push in lower tab Installing controller faceplate required The freezer is shipped from the factory configured to display in d
4. 2 00155671 00106534 00157586 00161554 Condensing Unit Reference ANoOaRWND Not shown Not shown Description Condensing unit Condenser Shroud condenser Condenser fan blade Condenser fan motor Fan motor bracket Compressor Starting capacitor Filter drier Starting relay Overload protector 17 Part 00153874 00157339 00157347 00105007 00104992 00157412 00157313 00104968 502724 00157305 00104984 Hardware Reference OMDOANNOOAARWWHND Not shown y v y N a A N Description Latch amp striker includes screws Latch screws 3 per latch Door FZR5 includes gasket 21 3 8 x 21 3 8 Door FZR4 ADA includes gasket 21 3 8 x 18 5 8 Hinge each 2 required includes screws Hinge screws each 6 per hinge Gasket FZR5 Gasket FZR4 ADA Strip sealer set of 4 FZR5 Strip sealer set of 4 FZR4 ADA Door heater FZR4 ADA includes 00130146 Door heater FZR5 includes 00130138 Striker screws each 2 per striker Shelf Shelf support snap in each Pilaster each Thumbscrews set of 8 18 yi Part 00105023 00103507 00105015 00113910 00105031 00105080 00125732 00127738 00130138 00130146 00155549 00155531 502287 00152876 00156240 00105346 00105353 Hardware amp electrical components Reference Description Part 1 Temperature controller 00900092 2 Face
5. FZR Series Undercounter Freezer Order parts online See Installation Operation and Service Manual Serial numbers before C45184 Following installation please forward this manual to the appropriate operations person MOLLEN 801 Church Lane Easton PA 18040 USA Toll free 800 523 9361 610 252 7301 Innovative solutions inspired by ice Fax 610 250 0696 www follettice com 00156216R08 This page intentionally left blank Welcome to Follett Follett equipment enjoys a well deserved reputation for excellent performance long term reliability and outstanding after the sale support To ensure that this product delivers that same degree of service we ask that you take a moment to review this manual before beginning the installation Should you have any questions or require technical help at any point please call our technical service group at 800 523 9361 or 610 252 7301 Before you begin After uncrating and removing all packing material inspect the equipment for concealed shipping damage If damage is found notify the shipper immediately and contact Follett Corporation so that we can help in the filing of a claim if necessary Specifications Series specifications FZR5 34 00 height for freestanding use or installation below standard 36 915mm high counter 4 0 cu ft usable cubic
6. ation The FZR series freezers have been designed specifically for the storage of temperature critical medications Other storage applications may require modifications of the factory programmed defrost cycle settings Please consult Follett technical service if defrost modification is needed Note Storage of products with very low volumes may require additional product insulation Note Serial numbers below C57095 were programmed with defrost cycles every 4 hours terminating at 5 C 41 F or after 15 minutes whichever came first If you are experiencing problems with frost on any of these earlier units please call Follett s technical service department at 800 523 9361 or 610 252 7301 for a programming key to update your unit to the 2 hour 18 minute defrost cycle Cleaning Use only non chlorine based cleaners Cleaners containing chlorine can cause staining and pitting of the stainless steel Interior Using a sponge or soft cloth clean unit with a non abrasive non chlorinated all purpose detergent Exterior Wipe exterior with a soft cloth in the direction of grain as needed Stainless steel polish may be used to enhance the finish of the unit 8 Annual cleaning Fig 10 Removal of dust and other particulates from air intake areas and the condenser is important for proper operation Some environments with large amounts of dust may require more frequent cleaning 1 Disconnect power to un
7. egrees C If degrees F display is desired resetting of temperature controller is required 1 Remove degrees F and degrees C faceplates from plastic bag packed inside refrigerator 2 Snap appropriate faceplate in place over controller face Changing temperature controller settings optional Follett s temperature controller is pre programmed with a 25 C 13 F set point and degrees C display The 25 C 13 F set point delivers a temperature range of 23 to 25 C 9 to 13 F Follett s controller set point can be changed to deliver up to a 15 C 5 F temperature for applications where a lower temperature is not desired i e ice cream See page 6 to change controller settings Fig 3 Fig 4 Reversing the door swing optional Fig 5 NOTICE When reinstalling latch and hinge screws 242 blue Loctite MUST be applied to screws Torque screws to 25 in Ibs 1 Remove screws and latch from refrigerator cabinet Fig 5 1 2 Use flat screwdriver to carefully remove do not scratch hinge covers Fig 6 1 3 Support door and remove screws attaching hinge to refrigerator cabinet Fig 6 2 4 Cover hinge screw holes with screw hole plugs removed from opposite side 5 Reverse door Apply 242 blue Loctite to hinge screws and reinstall 8 torqued to 25 in lbs Fig 6 Rein
8. en or 1 Allow to cool or replace defective 2 Capacitor and or relay defective 2 Replace as required 3 Compressor defective 3 Replace compressor Compressor and condenser fan do 1 No power on terminal 5 of 1 Replace controller not run controller during cooling Evaporator fan motor does not run 1 No power on terminal 4 of 1 Replace controller controller during cooling Freezer does not shut off 1 Controller not sensing cut off 1 Replace controller and or probe temperature 2 Controller keeping refrigeration 2 Replace controller system energized Freezer does not maintain 1 Condenser or evaporator coil 1 Clean coils as needed temperature all components run needs cleaning 2 Faulty door gasket 2 Replace door gasket 3 Excessively high ambient 3 Maximum recommended ambient is 100 degrees F 4 Refrigerant leak 4 Locate and repair leak 5 Incorrect refrigerant charge 5 Recover evacuate and weigh in correct charge 6 Plugged expansion valve 6 Replace expansion valve 7 Inefficient compressor 7 Consult technical service 8 Evaporator coil blocked with ice 8 Depress defrost button on controller to defrost coil Evaporator does not defrost 1 Defective defrost heater 1 Replace defrost heater 2 Faulty heater safety switch 2 Replace switch 3 No power on terminal 2 of 3 Replace controller controller during defrost 4 Defrost settings may require 4 Call Follett s technical service c
9. ent refrigerator temperature To change temperature cut out STEP INPUT DISPLAY 1 Press and hold SET for Current cut out temperature displayed refrigeration system 3 seconds energized LED flashes 2 Press UP or DOWN arrows to New cut out temperature displayed desired cut out temperature 3 Press and release SET New cut out temperature blinks three times then current refrigerator temperature will display To change temperature display from degrees C to degrees F Follett includes a programming key part 00155630 that changes the display and temperature settings from degrees C to degrees F Programming freezer from a degree F key download 1 Turn OFF freezer 2 Remove 6 screws from panel holding controller to access back of controller 3 Insert degree F programmed key into 5 PIN receptacle on controller back 4 TURN ON freezer 5 Values from key automatically download to freezer dol message blinks followed by end 6 After 10 seconds display returns to current freezer temperature and controller will restart with new values 7 Remove key 8 Freezer will now display in degrees F Note An Err message displays for failed programming Turn freezer OFF then ON to restart download or remove key to abort Controller security The controller panel can be locked to prevent inadvertent or intentional programming changes In locked mode the controller will display cabinet temperature and cut out
10. firmly in place 4 Open and close door checking for proper gasket seal without pinching against freezer 5 Adjust latch and or striker as necessary for proper door closure Slide out compressor tray Follett s slide out compressor tray allows technicians to partially slide the condensing unit from the freezer back without cutting refrigerant lines 1 Remove rear panel Fig 12 1 2 Remove two bolts securing condensing unit to refrigerator base Fig 12 2 3 Gently slide condensing unit out Fig 12 3 Note Do not put undue strain on the refrigerant lines 9 Controller replacement 1 Disconnect power to unit a Push front panel rocker switch to OFF position b Disconnect power cord 2 Remove 6 screws from front panel and slide panel forward to access back of controller 3 Disconnect front panel and wiring harness from freezer at the 3 4 and 5 pin connectors and door heater connector to simplify replacement 4 Push in on center of side brackets on controller to release and slide brackets back and off controller 5 Push controller and wires out through front of front panel 6 Using wiring schematic attached to front panel and below as a guide remove wires one at a time from back of existing controller and connect to corresponding terminals on replacement controller 7 Gently remove faceplate from existing controller and install on replacement controller 8 Insert replacement contr
11. hange for specific applications department If problems persist after following this basic troubleshooting guide call Follett s technical service group at 800 523 9361 or 610 252 7301 12 Accessories Follett offers alarm and temperature monitoring accessories to provide greater product security Both accessories are equipped with immersible probes that should be routed through the gasketed refrigeration port in the back of the FZR to the product simulation bottle that will be installed in the unit Installing probes 1 Use flat head screwdriver to open partial knockout on left side of evaporator cover panel inside freezer Fig 13 1 Install supplied short length of plastic tubing on end of stainless probe From back of FZR insert plastic tubing probe assembly through soft gasketing where refrigeration line enters back of FZR Route tubing probe assembly into FZR cabinet through opened knock out in evaporator cover panel Remove tubing from probe and discard tubing Insert center tab of short bottle bracket into top of rear left pilaster Fig 13 2 Note Use longer bottle bracket for FZR freezers with third shelf installed high in FZR Fill supplied plastic bottle with glycerin or other liquid solution used by your facility to simulate product Hang bottle in bracket Push probe through hole in top of gasketed bottle top Note Probe must be placed in bottle for proper alarmi
12. ion system on The normally open controller contacts 4 and 5 close and energize the evaporator and condenser fan motors compressor and door heater The LED s under the snowflake and fan on the controller will come on to indicate the refrigeration system is on The compressor uses a current style starting relay and a starting capacitor to start the compressor motor When the cabinet interior temperature falls to the set point the probe signals the controller to turn the refrigeration system off The controller contact 5 reopens which de energizes the condenser fan motor and the compressor The LED under the snowflake will go out and the LED under the fan will remain on Any accumulated frost on the evaporator coils melts during the defrost cycle The condensate drains to a drain pan mounted along the condensing unit The heat from the condensing unit evaporates any condensate in the drain pan Temperature control The temperature control system is preset by the factory to maintain a cabinet temperature of 23 C 10 F If desired the cut out temperature can be raised as high as 15 C 5 F by following the instructions on page 6 for changing the temperature set point The 2 C cut out differential will be maintained regardless of the controller set point Defrosting The FZR series undercounter freezers control frost accumulation on the evaporator through automatic timed defrost cycles The defrost cycle is initiated by the temperature controlle
13. it by turning switch on the lower front panel to the OFF position switching circuit breaker to OFF position and removing power cord from receptacle 2 Remove lower front panel Fig 10 1 Note Front louvered panel may be completely removed for easier cleaning by disconnecting the controller wiring plugs from the freezer 3 Remove drain pan Fig 10 2 4 Clean drain pan with a non abrasive non chlorinated all purpose detergent 5 Reinstall drain pan AN Ee 1 nn e a DAZA TES y i is ii lei 6 Use a vacuum cleaner with brush attachment to clean condenser through lower front panel and compressor motor and related parts through lower rear panel Fig 11 7 Reinstall lower front panel Service Latch adjustment To adjust for proper latch engagement 1 Loosen striker plate mounting screws Fig 11 1 2 Move striker plate up or down as required and tighten screws 3 Test operation of latch To adjust for proper gasket seal 1 Loosen striker depth adjustment screw Fig 11 2 2 Adjust stop in or out and tighten screws 3 Test operation of latch Fig 12 Door gasket replacement 1 Remove existing gasket from mounting track 2 Verify mounting track is free of any remaining gasket material 3 Align new gasket with mounting track and press
14. ng and or operation Temperature alarm Before installing alarm 1 2 Remove 2 screws from module face and remove faceplate 3 Install back up battery on battery connector 4 Locate DIP switches on the back of the faceplate Fig 14 5 Review the factory DIP switch settings Fig 15 and make any changes required to meet the needs of your specific application 6 Reinstall faceplate Fig 15 Remove supplied 9 volt back up battery from packing box Fig 13 GN eef Fig 14 Lr OO Dip Switch OFF factory default setting ON F No alarm delay 45 minute alarm delay when reset button is pressed 3 off with 4 on 2 Auto reset alarm stops automatically as Manual reset of alarm user must press soon as temperature returns to set range RESET button to stop audible alarm even if temperature has returned to set range 3 amp 4 Audible alarm on no snooze with both off No audible alarm 3 Enables 5 min alarm sno
15. oller back through front of panel 9 Slide brackets onto sides of controller and push against back of front panel 10 Reconnect 3 4 and 5 pin connectors of wiring harness to freezer 11 Keeping wiring clear of condenser replace front panel 12 Restore power and test operation Reprogram replacement controller if necessary Wiring diagram 1 1 i 8 i 1 1 1 ly oe De A N HEATER SAFETY SWITCH HEATER DEFROST DEFROST 1 1 i 1 i 1 i 1 i TE q O d o zE d B JE F go jz ae se 4 ad a a a Li 1 2 120 VAC WET 2 1PHASE L2 e 4 TT 15 AMPS Y GND 9 ne wo 1 1 N 19 Ble 2 2 BLU ve 3 3 l TO Oboe 4 4 ss j 9 fej 2 GROUND SCREWS RED SS 9 HP Z f ST YEL O Fz 1 ae SN EVAPORATOR 3 3 l WHT D 9 THERMISTOR J vio gt CHAMBER q THERMISTOR 10 Refrigeration system The FZR series 20 C 4 F freezer refrigeration system is designed to give many years of trouble free service Except
16. oze Enables 45 min alarm snooze when reset button is pressed 3 on with 4 off 13 Mounting alarm Fig 16 1 Mount alarm in desired location with screws supplied by others through back of housing Do not place undue strain AC Power on probe cable AC in Note Do not modify length of probe wire Probe will Black not Measure temperature correctly if wire length is changed white sensor 2 Plug cord into 110 VAC outlet Red e 3 Refer to above instructions to install probe ne 4 Refer to Figure 16 if attaching alarm to central monitoring or alarm system A SPDT 1 amp 24 VAC resistive relay is No Output provided for this connection Com Setting alarm temperatures Fig 17 1 After the installation is complete allow 30 minutes for the system to stabilize to ambient temperature 2 Calibrate temperature alarm to refrigerator display a Calibration is best done with the alarm probe removed Symphony from the probe bottle and placed in the vicinity of the O temperature controller probe Allow at least 15 minutes for the probe temperature to stabilize TEMPERATURE ALARM b Note the temperature value displayed on the refrigerator controller and subtract the temperature value displayed on the alarm This value is the differential Example Temperature controller 36 F Alarm 38 F Controller Alarm Differential 36 38 2 c P
17. perature 70F 80 F 90 F 100 F Discharge pressure psi 197 225 255 285 Suction pressure psi 12 13 14 15 Refrigeration system diagram COMPRESSOR 10oz Charge Low Psi a High Psi m Vapor E ee V a keo g m m T S LS LOW SIDE p 4 4 SERVICE PORT O 4 z 2 gt oH old gt p al S x m fi A HIGH SIDE gt 3 i i SERVICE PORT Z a deS en s x me 5 ENEN TRE wot Tid TXV Cee moe a Horas EVAPORATOR DEFROST UNIT CONDENSING UNIT HIGH PRESSURE VAPOR HIGH PRESSURE LIQUID LOW PRESSURE LIQUID LOW PRESSURE VAPOR 11 Before calling for service 1 Check that unit is plugged in Freezer troubleshooting guide 2 Test outlet with another appliance to verify power Symptom Possible cause Solution Freezer does not operate no components run Power switch faulty or in OFF position loose connection Turn power switch to ON position check switch and connections 2 Freezer not plugged in 2 Connect plug 3 No power to cord 3 Restore power 4 Temp controller not energizing 4 Check controller contact terminals for components power Replace controller if needed 5 Probe not sensing cut in 5 Replace controller and or probe temperature Compressor does not run 1 Thermal overload op
18. plate degrees F 00158055 2 Faceplate degrees C 00157644 Not shown Probes amp harness 00155705 3 Power switch 00114371 4 Front panel includes 00114371 and 00105379 00157669 5 Front panel screws each 6 per panel 00105379 Not shown Rear panel includes screws 00130161 Not shown Rear panel screws each 6 per panel 00105387 6 Condensate pan 00155622 7 Evaporator drain line sold by the foot 203627 Not shown Power cord 00103903 Temperature alarm accessory Reference Description Part Not shown Bottle kit includes bottle bracket and gasket 00113779 Not shown Controller kit includes battery probe and power supply 00108175 Not shown Gasket bottle 00112029 Not shown Bracket bottle 00112011 Not shown Bottle 00112037 Not shown Battery 00112177 Not shown Screws includes two for securing cover 00115063 Not shown Label controller cover 00115071 Not shown Temperature probe 00115097 19 Ra m 801 Church Lane e Easton PA 18040 USA OLLENT Toll free 800 523 9361 610 252 7301 00156216R08 c Innovative solutions inspired by ice Fax 610 250 0696 e www follettice com 07 09
19. r every 4 hours Contacts 4 and 5 on the controller open and the refrigeration system is turned off Contact 2 is closed and the defrost heater is energized The LED under the melting snowflake on the controller will come on and the temperature display will read DEF to indicate the freezer is in the defrost cycle The heater warms the evaporator coil and drain pan to melt the frost and drain the water to the condensate pan The temperature controller monitors evaporator temperature using a probe embedded in the coil The controller terminates the defrost cycle when the evaporator temperature reaches 5 C 41 F or after 15 minutes of defrost time whichever occurs first As the defrost cycle terminates the controller de energizes the heater and restarts the compressor and condenser fan The LED under the snowflake on the controller will come on to indicate the refrigeration system is running There is a 5 minute delay before the evaporator fan motor is re energized The LED under the fan on the controller will come on to indicate the fan is running and the temperature display resumes displaying cabinet temperature A defrost cycle can be initiated manually at any time by depressing and holding the melting snowflake button for approximately three seconds As a safety feature a temperature safety switch mounted on the evaporator will turn off the defrost heater if the temperature of the evaporator reaches 27 C 80 F regardless of controller oper
20. res can be read by pressing the RESET button Because the temperature alarm display simulates the true temperature of stored medications rather than the air temperature inside the freezer we suggest that staff refer to the alarm display to log temperatures for JCAHO compliance Automated medication dispensing and inventory systems interface Pyxis Omnicell MedSelect etc Follett refrigerators and freezers are compatible with most major automatic medication and inventory systems In some cases a Follett bracket accessory is required Contact factory for further information Pyxis is a registered trademark of Cardinal Health in the United States and other countries Omnicell is a registered trademark of Omnicell Inc in the United States MedSelect is a registered trademark of AmerisourceBergen Technology Group in the United States 15 Replacement parts Evaporator Reference OANNOOKRWNH Description Cover evaporator FZR5 includes 00152892 Cover evaporator FZR4 ADA includes 00152892 Fan guard Fan blade Bracket fan motor Fan motor evaporator Defrost heater Drain pan evaporator FZR5 Drain pan evaporator FZR4 ADA Evaporator Heater safety switch Expansion valve includes 00106534 Insulation bulb Evaporator cover guard Clips defrost heater 2 needed 16 Part 00155564 00155572 00152892 00152991 00152983 00104919 00152645 00162511 00155614 00151563 0015393
21. ress SET until CAL is displayed Fig 17 1 E lt 1 Press SET again to display CAL value Fig 17 1 W Press top or bottom of ADJUST arrow to display the calculated differential 2 F in example above Press arrow up to set F C 3 Set high alarm limit a Press SET until HSP is displayed Fig 17 1 b Press SET again to display HSP value Fig 17 1 c Press top or bottom of ADJUST arrow until desired HSP value is displayed Fig 17 2 4 Set low alarm limit a Press SET until LSP is displayed Fig 17 1 b Press SET again to display LSP value Fig 17 1 c Press top or bottom of ADJUST arrow until desired LSP value is displayed Fig 17 2 5 Display will return to temperature display in approximately 15 seconds 6 Place alarm probe back in probe bottle 14 Viewing high low log Follett s alarm module allows users to view the highest and lowest temperatures recorded since the last time the RESET button was pressed To view high and low log values 1 Press SET button until HI appears 2 Press SET button to view HI log value 3 Press SET button until LOW appears 4 Press SET button to view low log value 5 Press RESET button to clear log Alarm operation facts The back up battery will continue to provide alarm protection during power failure but will alarm ONLY if temperatures go out of the selected range During power failure the alarm face will be dark but temperatu
22. stall latch on opposite side Remove screws and handle from door Fig 7 1 Rotate handle Fig 7 2 onog Apply 242 blue Loctite to latch screws and reinstall torqued to 25 in lbs Fig 7 Loctite is a registered trademark of Henkel Corporation in the United States and other countries 5 Controller operation Fig 8 In normal operation the controller displays cabinet temperatures ee be in degrees C default or user selected degrees F Degrees C energized defrost energized temperatures are displayed to 1 decimal point vs 7 Rocker buttons to the right of the temperature display control all programming functions The controller is pre programmed with a 25 C 13 F set point which provides a compressor cut in at 23 C 9 F and cut out at 25 C 13 F The controller set point can be raised to 15 C 5 F for nourishment applications where a lower temperature is not X desired i e ice cream Follow instructions for changing temperature not used cut out below All set points have a 2 C differential The 2 C differential means that with a 25 C set point for example the compressor will turn off at 25 C 13 F and turn on when it reaches 23 C 9 F To display temperature cut out STEP INPUT DISPLAY 1 Press and release SET Current cut out temperature will display for approximately 5 seconds Display will return to curr
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