Heatcraft Refrigeration Products H-IM-82C User's Manual
Contents
1. 4 Condensing temperature too low 4 Check ambient temperature 50 F to 100 F Compressor 1 Operating beyond design conditions 1 Add equipment so that conditions are within allowable limits thermal protecto 2 Dirty condenser coil 2 Clean coil switch open 3 Overcharged system 3 Reduce charge see refrigerant charge chart pg 2 Fan s will 1 Main switch open 1 Close switch not operate 2 Blown fuses 2 Replace fuses Check for short circuits or overload conditions 3 Defective motor 3 Replace motor 4 Defective defrost control 4 Replace defective component 5 Unitin defrost cycle 5 Waitfor completion of cycle 6 Coil does not get cold enough to reset thermostat 6 Adjust fan delay setting of control Room 1 Control cut out set too high 1 Adjust control temperature 2 Superheat too high 2 Adjustthermal expansion valve too high 3 System low on refrigerant 3 Addrefrigerant See refrigerant charge chart pg 2 4 Coiliced up 4 Manually defrost coil Check defrost controls for malfunction Ice accumulating 1 Defrost duration is too long 1 Adjust defrost termination temperature on control on ceiling around 2 Fan delay not delaying fans after defrost period 2 Adjustfan delay setting or replace bad sensor evaporator and oi 3 Defective defrost control or sensor 3 Replace defective control or sensor on fan guards 4 Too many defrosts2. Worldwide Refrigeration Cooler Air Defrost Systems Single Phase Diagram 3 Wiring Diagram for PRO System Typical High Temp g g Diag HOLIMS MS HOLIOVdVO N YH OH HIlV3H LSOMHJUG 1415 YS HOLIMS 3 T1OAO 3H SSdHd Odd HOLOMW HOJVHOGdVA W43 H3SN3GNOO W49 LAN SHIM NM HOLIOVdVO LHVIS OS HOLIMS SYNSS3AYd HOIH SdH JIVISOWMH3HL SANIT HJIVSH ASVOMNVAD HOO HOLIMS 3 T1OAO 3niveadiwal 94L IVISONWMH3H INOOH LH JIVISOWMNZ3HL UWT X3LW3H 1H HIA HOLOVINOO HOSSHMHdWOO 55 ON3931 HOSS3HdWOO 329HYTO 114 PPOW 1s0Jjep 5 uo pesn jou aM jSOyoq dW3L MOTI3A 1509330 MOTT3A MOTI3A Aq YATIOULNOD NOILVH3DIUJ3H MOTI3A AVY MOTI3A ZHO9 I AO C 80c LON ONIMIM SNIHIA AINO SHOLONGNOD Y3ddO9 JSN NOILOSLOYd 3SVHd 3 TONIS 24 5 Wiring Information PRO Top Mount Packaged Refrigeration System Outdoor HEATGRAET Warranty Statement Heatcraft Refrigeration Products LLC warrants to its direct purchasers that the PRO product except Service Parts manufactured by Heatcraft Refrigeration Products LLC shall be
3. Access Requirements Provide adequate space at the compressor end of the unit for servicing Provide two 2 feet of space above unit for service Trim Pieces 4 Overlap as Shown Trim Ring Installation Detail Ceiling of Walk in Evaporator Grill Self Drilling Screw Inspection 1 Each shipment should be carefully checked against the bill of lading 2 The shipping receipt should not be signed until all items listed on the bill of lading have been accounted for 3 Check packaging for signs of damage 4 Anyshortage or damages should be immediately reported to the delivering carrier 5 Damaged material becomes the delivering carrier s responsibility and should not be returned to the manufacturer unless prior approval is given to do so 6 When unpacking the system care should be taken to prevent damage 7 Avoid removing the shipping base until the unit has been moved to the final destination 8 Complete warranty return card for each unit and mail to Heatcraft Refrigeration Products TABLE 4 Control Factory Default Settings PTT Temperature Defrost Models Set Points Start Times H Cooler Models 5 Electric Defrost L Freezer Models Electric Defrost Defrost Duration Maximum HEATGRAET Mounting The system requires an opening in the ceiling to the dimensions stated on page 3 Mounting rails are located at both ends of the chassis Mounting rails may be used t
4. HEATCRAFT Worldwide Refrigeration September 2010 Operations Manual Part No 25001901 PRO Top Mount Packaged Refrigeration System For Outdoor Applications EU x Top Mount Do Table of Contents Performance Electrical Data SpecifiCatiOTris riri PH Eee 2 Dimensional Diagrams 3 Space and Location Requirements Recommended Unit 4 Rigging Mounting Inspection General Safety Information Control Factory Default Settings 5 Standard Installation Procedure 6 Outdoor Unit Installation 7 Service Information Maintenance Sequence of Operation Freezer System Pre Setpoints Electric Defrost Sequence of Operation Programming Electric Defrost Controls 8 3 Controllers Carel Electronic Controller 9 19 4 Service Information System Troubleshooting 20 Replacement Parts cssscsssssssssseessessseessessseessusssssessssesssecsseessees 21 5 Wiring Information Electrical Wiring Diagrams 22 2
5. CFM 18 000 Fig PTT044L6BA 208 230 1 60 9 900 PTTO52L6B 208 230 1 60 10 900 PTTO52L6CA 208 230 3 60 10 900 PTTO69L6B 208 230 1 60 15 300 PTTO69L6C 208 230 3 60 H for PSC E for EC motors on evaporator section only 15 300 2010 Heatcraft Refrigeration Products LLC PRO Top Mount Packaged Refrigeration System Outdoor HEATCRAFT Dimensional Diagrams Figure A Medium Cabinet Dimensions without weather hood See reference on Page 2 MEER 28 1 2 2 24 3 4 62 87 EX B 24 3 4 62 87 cm d 52 132 cm 17 1 2 44 5 cm Y 4 10 16 cm 1 Owner s Operating Instructions 25 25 panel opening required for evaporator section of medium cabinet sizes 21 5 with weather hood Figure B Large Cabinet without weather hood See reference on Page 2 See reference m Page 2 19 4 10 16 cm E 24 3 4 62 87 cm J 38 1 4 97 15 cm 52 132 cm 25 x 38 panel opening required for evaporator section of large cabinet sizes 23 5 with weather hood Figure C Medium Cabinet with weather hood Figure D Large Cabinet with weather hood See reference on Page 2 See reference on Page 2 473 HEATCRAFT Installation and Operations Manual Recommended Unit Placement For PTT Models Some general rules for the evaporator section placement whi
6. 2 4 See Figure 2 page 7 Care should be taken during the membrane installation to prevent bunching or folding which could affect the gasket to curb sealing or trap rainwater adjacent to the curb Remove the weather hood from the PRO system The compressor compartment cover s should be left in place during lifting rigging Place PRO system onto curbing and center over opening in roof box See Figure 3 page 7 It is recommended that the PRO system be secured to the curb with wood screws Seal the screw heads as necessary to prevent moisture from entering beneath the membrane Additional caulk may be applied around the perimeter of the evaporator box gasket The compressor compartment should not be caulked Install trim pieces if used around the ceiling opening in cooler Installation and Operations Manual Condensate Drain Outlet Location 8 Remove compressor compartment cover for access to electrical box 9 Connect power wiring in accordance with all applicable building and electrical codes 10 Reinstall condensing unit cover s 11 Reinstall the protective weather hood See Figure 4 page 7 12 Apply power and check for proper operation Drain Line A condensate drain outlet is located on the side of the compressor compartment Field piping may be connected to the outlet provided it is adequately sloped and heated for freezing weather conditions There is a drain line P trap located in
7. 4 Adjust number of defrosts venturi or blades Coil not clearing 1 Coil temperature not getting above freezing 1 Check heater operation of frost during point during defrost defrost cycle 2 Notenough defrost cycles per day 2 Adjust control for more defrost cycles 3 Defrost cycle too short 3 Adjust defrost control defrost duration setting 4 Defective defrost control or sensor 4 Replace defective component Ice accumulating 1 Defective heater 1 Replace heater in drain pan 2 Unit not installed properly out of level 2 Checkand adjust if necessary 3 Drain line plugged 3 Clean drain line 4 Defective control 4 Replace defective component 20 PRO Top Mount Packaged Refrigeration System Outdoor HEATCRAFT Condensing Unit Wrapper PRO Replacement Parts Inter LINK Commercial Refrigeration Parts M Evaporator Fan Motor Right source Right parts Right now InterLink is your link to a complete line of dependable and certified commercial refrigeration parts accessories and innovative electronic controls for all Heatcraft Refrigeration Products equipment gt At InterLink we provide our wholesalers with a comprehensive selection of product solutions and innovative technologies for the installed customer base And every product is built to ensure the same high performance standards with which all Heatcraft Refrigeration brands are built backed by
8. Buzzer and Alarm Relay LED Alarm Description Enable Alarm Code parameters involved not active probe 2 error defrost automatic d0 0 1 4 F0z 1 automatic A4 10 A4 1 A7 A4 7 8 A7 automatic AL Ad AH Ad not possible Reset not active probe 3 error condenser product active external alarm automatic active open door alarm automatic active low temperature alarm automatic active high temperature alarm not active unit parameter error not active operating parameter error manual dt d4 A8 on first defrost ended correctly not active defrost ended by timeout not active defrost running automatic d6 0 not active dirty condenser pre alarm automatic A4 10 active dirty condenser alarm manual A4 10 not active clock alarm by setting the time if bands active 15 9 gt 5 e 2 D 7 HEATCRAFT Description of the Main Signals and Alarms LED flashing The activation of the corresponding function is delayed by a timer awaiting an external signal or disabled by another procedure that is already in progress e g if is a continuous cycle in progress and a defrost is called the latter will remain pending until the end of the continuous cycle and the corresponding LED defrost will flash EO steady or flashing Control probe error probe not working the probe signal is interrupted or s
9. kind express or implied to Consumers except as specifically set forth above and on the face hereof This equipment is designed to operate properly and produce the rated capacity when installed in accordance with good refrigeration industry practices The following conditions should be adhered to when installing this unit to maintain the manufacturers warranty a The power supply to the unit must meet the following conditions A Three phase voltages must be 10 of nameplate ratings Single phase must be within 10 or 5 of nameplate ratings B Phase imbalance cannot exceed 2 b All control and safety switch circuits must be properly connected according to the wiring diagram c The factory installed wiring must not be changed without written factory approval Optional Three Year Extended Compressor Warranty The Equipment Dealer may purchase for the Ownerat the time of the original invoice of the equipmenta Three Year Limited Replacement Compressor Warranty This entitles the owner to be reimbursed for the cost of areplacement compressor during the third through fifth year of the life of the compressor The warranty program functions similarly to the standard warranty offered Whenacompressor failure occurs and the unit is exchanged over the counter at the authorized wholesaler outlet a salvage credit is issued along with the invoice for the new compressor Return copies of both the credit and invoice to t
10. new value and display the parameter again repeat the procedure for any other parameters that need to be modified press the SET button for more than 3 s to permanently save the parameters and exit the parameter setting procedure Warnings If no button is pressed for 60 5 all the changes made to the parameters temporarily saved in the RAM will be cancelled and the previous settings restored The dAY hr Min parameters are not restored as these are saved instantly when entered If power is disconnected from the instrument before saving the settings pressing the SET button for 3 s all the changes made to the parameters and temporarily saved will be lost HEATGRAET Category Initial Icon Probe parameters Control parameters Compressor parameters Defrost parameters Alarm parameters anal plalalal Fan parameters AUX output configuration parameters RTC parameters Setting the Default Parameters Warnings Running this procedure overwrites any custom parameter settings To reset the default parameters disconnect power from the instrument reconnect power while holding the SET and DOWN buttons the display will show the message CF e after a few seconds the instrument starts operating with the default configuration Any different parameter settings will need to be updated 17 c i2 4 J e HEATCRAFT Installation and Opera
11. temperature rises to 36 F Defrost Initiated manually or 6 hour counter Defrost terminated by temperature 65 F Drip Time of 2 minutes ends TABLE 7 Model PTT High Temperature Models EZY SETTING 3 SET POINT IS 38 F These models are intended for cooler applications and have air Off cycle defrost The controller is pre programmed for 4 defrost per day These periods are reprogrammable Condenser Evaporator Defrost compressor Fans Fans Cycle If unit shows OFF depress the button and hold for three seconds System Timer Begins 2 F Differential Minimum Compressor Off Time is 4 Display alternates OFF and Room Temperature Cooling Cycle initiated Box Temperature 37 9 F is satisfied o 3 4 E o E E Box temperature rises to 40 0 F minutes Defrost Initiated Manually or 6 hour counter Defrost Terminated by time of 40 minutes o 3 o 3 E 10 PRO Top Mount Packaged Refrigeration System Outdoor HEATGRAET Programming the PJEZC Carel Electronic Controller Reprinted with permission from Carel The Carel PJEZC control is a fully configurable electronic refrigeration controller The Top Mount packaged refrigeration system uses the Carel controller on all three temperature designated models The models differ by a pre programmed parameter list that is specific for each application There are two levels of programming wit
12. the PTT unit General Safety information Do NOT lift the PRO by the weather hood This product is not designed to be transported while installed or operating PRO Top Mount Packaged Refrigeration System Outdoor HEATCRAFT PTT Models Example Outdoor Curb Installation Curb supplied by others E c This area of curb may be solid Figure 1 Curb placed on roof of walk in cooler Figure 2 Roof membrane placed over curb Note Do not caulk around the base of com pressor compartment Figure 3 PTT unit placed on roof of walk in color Figure 4 Weather hood installed after electrical service see rigging instructions connection HEATCRAFT Installation and Operations Manual Medium and Large Cabinet Freezers DRO Service Information All PRO units are designed for maximum durability reliability and simplicity PRO comes to you ready for operation fully charged and with all controls preset at the factory The following information is provided as an aid in the event that service is required Maintenance The evaporator section of a PRO system should be checked at least once for proper defrosting because the amount and pattern of frosting can vary greatly The frost build up is dependent on the temperature of the room the type of product being store
13. 1 CE should display to verify programming display Defrost Termination EZY Set Point Fan Drip Delay Time Default 9 gt gt ETPPIREHTSIUTP ET To EI Vo HEATCRAFT The Outdoor PRO comes standard with the following additional components Crankcase Heater Drain Line Heater Weather Hood Fan Cycling Pressure on 1 fan models Pressure and Ambient on 2 fan models Standard Installation Procedure PTT Models For outdoor use k Provide a 25 X 25 medium cabinet or 25 X 38 5 large cabinet opening in the roof of walk in cooler or as specified by the panel manufacturer Apply silicone caulk around the perimeter of roof opening Place the curb on roof of cooler It is recommended that the curb be fastened to the roof panels using non conductive bolts or insulating the bolt heads Bolt heads should be countersunk or low profile to prevent contact with the PRO system See Figure 1 page 7 Check the top of the curb with a level PRO units require a surface that is within 1 of level or better and no more than a 5 8 drop per 3 feet 17mm drop per meter Install the membrane onto the roof of the box and over the curb Fasten to roof per panel manufacturer s instructions The membrane material should be slit over the evaporator grill opening the flaps allowed to drape into the hole
14. 4 6 Warranty Information 25 O 2010 Heatcraft Refrigeration Products LLC HEATCRAFT Performance Electrical Data TABLE 1 COOLER Air Defrost Systems BTUH 95 F Voltage MCA MOPD 35 F Box 38 F Box PTTO50H6B 5 120 5 370 208 230 1 60 CFM Unit Evaporator Amps Installation and Operations Manual Charge Heat of Fig R 404A Rejection 6 700 PTTO67H6B 6 860 7 190 208 230 1 60 8 700 PTTO76H6B 7 500 7 840 208 230 1 60 9 700 PTT104H6B 11 190 11 810 208 230 1 60 16 800 PTT104H6C 11 190 11 810 208 230 3 60 16 800 PTT133H6B 12 790 13 500 208 230 1 60 18 000 PTT133H6C 12 790 13 500 _ 208 230 3 60 TABLE 2 COOLER Electric Defrost Systems BTUH 95 F Voltage MCA MOPD 34 F Box Temp PTTO47M6B 5 120 208 230 1 60 CFM Unit Evaporator Amps 18 000 Approx Net Weight Charge Heat of Fig R 404A Rejection 6 700 PTTO63M6B 6 860 208 230 1 60 8 700 PTTO72M6B 7 500 208 230 1 60 9 700 PTTO99M6B 11 190 208 230 1 60 16 800 PTTO99M6C 11 190 208 230 3 60 16 800 PTT128M6B 12 790 208 230 1 60 18 000 PTT128M6C 12 790 208 230 3 60 TABLE 3 FREEZER Electric Defrost Systems BTUH 95 F Voltage MOPD PTT031L6BA 208 230 1 60 Unit Evaporator Amps
15. If dl expires in OFF status a defrost is performed when restarting auxiliary relay management only in the following configurations 1 1 2 EO alarm only H1 3 A4 6 13 ad 5 D 7 HEATCRAFT WARNING When first connected easy is already on and ready to be used The instrument can be switched on from a supervisor PC and via an external contact setting A4 5 The latter has priority over the other modes SET POINT SETTING DESIRED TEMPERATURE VALUE The easy and easy compact devices control the desired temperature set point inside the cabinet or cold room directly and dynamically To view and modify the set point e press SET for 1 s the set value will start flashing increase or decrease the value using UP or DOWN press SET to confirm the new value MANUAL DEFROST Press DOWN for more than 3 s activated only if the temperature conditions are right CONTINUOUS CYCLE Press UP DOWN for more than 3 s activated only if the temperature conditions are right The continuous cycle is used to maintain refrigeration active in the cabinet or cold room regardless of the temperature inside the unit This may be useful for rapidly bringing the temperature below the set point value RAPID DISPLAY OF THE TEMPERATURE READ BY THE OTHER PROBES Press the DOWN button to scroll the temperatures read by the probes Each time the DOWN button is pressed the display will sh
16. LLC s factory and no freight shall be allowed for transportation of the motor compressor to and from the wholesaler The replacement motor compressor shall be identical to the model of the motor compressor being replaced Additional charges which may be incurred throughout the substitution of other than identical replacements are not covered by this warranty The foregoing is in lieu of all other warranties express or implied notwithstanding the provisions of the uniform commercial code the Magnuson MossWarranty Federal Trade Commission Improvement Act or any other statutory or common law federal or state Heatcraft Refrigeration Products LLC makes no warranty expressed or implied of fitness for any particular purpose or of any other nature whatsoever with respect to products manufactured or sold by Heatcraft Refrigeration Products LLC hereunder except as specifically set forth above and on the face hereof It is expressly understood and agreed that Heatcraft Refrigeration Products LLC shall not be liable to buyer or any customer of Buyer for direct or indirect special incidental consequential or penal damages or for any expenses incurred by reason of the use or misuse by Buyer or third parties of said products To the extent said products may be considered Consumer Products as defined in Section 101 of the Magnuson Moss warranty Federal Trade Commission Improvement Act Heatcraft Refrigeration Products LLC makes no warranty of any
17. a dedicated team to serve every customer need delivering at the best lead times in the industry Dependable Versatile Courteous Li 1 Finally one simple source for all your replacement needs from name you can trust For parts please visit www interlinkparts com or call 800 686 7278 r a 5 Ly 3 o z Ly 3 o Part Description Part Number PTTO50H6B PTTO67H6B PTTO31L6B PTTOG9L6B PEE ree BS DE GEA ae Bee DE GEA 00 GEA CA S0 Bom Goo DIENEN Oe GAA BOSSES Oe Goo Oe GEA Fan Blades Evaporator 22901901 Condenser 5011E Fan Motors 208 230V Evaporator 25308601 25308601 25319501 4000104 23103301 Contactors asana arses ET ona mosso tt baat ff Temperature Control Temp contotzoezaov sm Dp pppppppppppp ppp p FHeatertimeThermosar LL LL Pb Defrost Heaters Exwoeestenes eu LT LI PPS TT ane E GEGEL Outdoor Parts 2 1 1121213 3 208 230V Condenser 1 IE 2 208 230V Evaporator EC Evap Fan Motor Bracket N Cond Fan Motor Bracket Ces HO GEA SESSE 88 GACA SSSA SSSA 89 GZA Dooce OO GEA a me F BES DJ GA W Nn 28917301 5521R 24753401 28917401 50047901 ith Ww HH H 58 aspe mpepsr This space may be blank or completed with an H designation indicating PSC motors or E for EC
18. ch must be followed are 1 Ensure that the structural integrity of the box can withstand the weight of the top mounted equipment The air pattern must cover the entire room Always avoid placement of units directly above doors NEVER locate the evaporator section over doors and door openings Location of aisles racks etc must be known Never remove or unlock any panel cam locks to install top mounted equipment The size and shape of the storage will generally determine the type and number of units to be used and their location Evaporator Section suononajsu 6unededo Compressor Section Top View One PRO System Evaporator Airflow Evaporator Evaporator Section Section Compressor Compressor Section 78 Section Top View Evaporator Evaporator Two PRO Systems Airflow Airflow Multiple units must be spaced properly to provide adequate air circulation W Unit Width PRO Top Mount Packaged Refrigeration System Outdoor Rigging Rigging holes are provided on all models Caution should be exercised when moving these units To prevent damage to the unit housing during rigging cables or chains used must be held apart by spacer bars The mounting platform or base should be level and located so as to permit free access of supply air The unit weather hood may be removed for the rigging process The condensing unit cover wrapper should be left in place
19. d how often new product is brought into the room and percentage of time the door to the room is open It may be necessary to periodically change the number of defrost cycles or adjust the duration of defrost System Standard Maintenance Guidelines After first year of operation and under normal usage maintenance should cover the following items at least once every six months 1 Check and tighten ALL electrical connections Check all wiring and insulators 3 Check contactors for proper operation and for worn contact points 4 Check all fan motors Tighten motor mount bolts nuts and tighten fan set screws 5 Clean the condenser coil surface Check the operation of the control system Make certain all safety controls are operating properly 7 Check that all defrost controls are functioning properly 8 Clean the evaporator coil surface 9 Clean the drain pan and check the drain pan and drain line for proper drainage Refrigeration Sequence of Operation Power is provided to the temperature control compressor contactor and cooler evaporator fans 2 temperature controller closes and energizes the compressor contactor starting the compressor evaporator and condenser fan s 3 When the system reaches the desired box temperature the temperature control will de energize the compressor contactor Evaporator fans will continue to operate at this point 4 When the fixture temperature rises above the set poi
20. defrost Post drippi 3 Controllers Parameter Description Set point Minimum set point value Maximum set point value Minimum compressor off time Type of Defrost Interval between defrost End defrost temperature set point Maximum defrost duration ALARM_ED Defrost on power up Dripping time Enable evaporator fan control Stop evaporator fan if compressor off Evaporator fan status during defrost set o set 1 set set 3 Set 4 Parameter Description Set point Minimum set point value Maximum set point value Minimum compressor off time Type of Defrost Interval between defrost End defrost temperature set point Maximum defrost duration ALARM_ED Defrost on power up Dripping time Enable evaporator fan control Stop evaporator fan if compressor off Evaporator fan status during defrost Post dripping time 19 uoneunoju EATCRAFT Installation and Operations Manual Table 5 PRO System Troubleshooting Chart PROBLEM POSSIBLE CAUSES POSSIBLE CORRECTIVE STEPS Compressor 1 Main switch open 1 Close switch will not run 2 Fuse blown 2 Check electrical circuits and motor winding for shorts or grounds Investigate for possible overloading Replace fuse after fault is corrected 3 Thermal overloads tripped 3 Overloads are automatically reset Check unit closely when unit comes bac
21. esolution to the tenths of a degree between 20 and 20 easy or 10 and 10 easy compact 6 0 temperature displayed to the tenth of a degree 6 1 temperature displayed without the tenths of a degree NOTE the decimal point is only disabled in relation to the reading shown on the display the calculations performed by the controller remain unchanged Temperature Control The following parameters are used to control the temperature St r1 r2 r3 4 and rd St set point r1 minimum value and r2 maximum value of the set point Parameter St determines the desired temperature to be maintained inside the cabinet or cold room set point Parameters r1 minimum value and r2 maximum set the range of temperatures for setting the set point NOTE the set point can be set by pressing the SET button see par Setting the set point desired temperature value page 11 r3 select direct reverse operation Defines the operating mode of the device r3 0 direct with defrost Used to request the activation of the compressor when the temperature measured by probe 1 rises above the set point This mode also includes defrost r3 1 direct without defrost e 13 2 reverse without defrost Used to request the activation of the compressor when the temperature measured by probe 1 falls below the set point This mode does NOT include defrost PRO Top Mount Packaged Refrigeration System Outdoor HEATGRAET Rapid Parameter Se
22. ew phase 2 Apply the front frame phase 3 M Do not over tighten the screws DISMANTLING USING THE SCREWS FROM THE FRONT Unclip the front frame Unscrew the bottom screw at the moment the front panel detaches from the panel keep pressure on the screw and unscrew a further 90 to make the catch go back into its slot Repeat for the top screw Remove the instrument from panel keeping it horizontal 11 HEATCRAFT Installation and Operations Manual Electrical Connections WARNINGS The electrical connections must only be completed bya qualified electrician A power supply other than the type specified may seriously damage the system Separate as much as possible the probes and digital input signal cables from the cables carrying inductive loads and power cables to avoid possible electromagnetic disturbance Never lay power cables including the electrical cables and probe signal cables in the same conduits Do not install the probe cables in the immediate vicinity of power devices contactors circuit breakers or similar Reduce the path of the probe and sensor cables as much as possible and avoid spiral paths that enclose power devices The probes must be connected using shielded cables minimum cross section of each wire 0 5 Avoid direct contact with internal electronic components Connection errors and connections other than those indicated in this manua
23. frost duration Alarm Parameters temperature alarm delay low temperature alarm threshold deviation high temperature alarm threshold deviation Functions Available from Keypad ON AND OFF Switching the instrument ON press UP for more than 3 s when pressing the button the display shows ON 3 Controllers more than 3 s switch ON OFF 1s displays sets the set point more than 3 s accesses Switching the instrument OFF press UP for more than 3 s The display shows the message OFF alternating with the temperature measured by the set probe the parameter setting menu enter password 22 mutes the audible alarm buzzer more than 3 s activates deactivates the defrost pressed together with 1 activates deactivates the continuous cycle foris RESET current EZY ressed set together 2 and 3 activate parameter reset procedure for1s displays firmware version In off status the following functions are disabled if featured by the model compressor control duty setting continuous cycle e defrost fan control alarms LO HI IA cht CHT door switch A4 7 8 buzzer when available While the following are enabled temperature display alternating with the message OFF parameter display and setting alarms EO E1 E2 the internal timer relating to parameter dl is updated
24. h the C controller The first level can be accessed through the keypad Set Point st Interval between defrost do Maximum Defrost Duration dP and Dripping Time dd are examples of first level parameters Second level parameters can be accessed by entering a password See Modifying Parameters page 17 Installation and Removal PANEL INSTALLATION FROM THE FRONT USING SCREWS The thickness of the fastening panel must not exceed 3 mm Remove the front frame and make sure that the two catches are in place these must not protrude from the outline of the drilling template If necessary unscrew the two screws Do not unscrew excessively the screws must not be detached from the front panel phase 1 Insert the instrument in the opening in the panel and hold it in position by the centre of the front panel phase 1 Using the screwdriver tighten the bottom screw 90 the catch must come out of its slot and click onto the panel then tighten until the front panel is secure Do not over tighten when the front panel is secured blocks simply make another 7 turn to compress the gasket If the catch does not click onto the panel unscrew the screw applying pressure at the same time with the screwdriver so that the catch moves back Do not unscrew too much the head of the screw must not be raised from the surface of the front panel phase 2 E i2 m 19 Repeat the same operation for the top scr
25. he Equipment Dealer along with the model and serial number of the condensing unit The Equipment Dealer will process this claim with the Manufacturer and subsequently reimburse the Owner for the cost of the new compressor This warranty covers the actual compressor only and does not extend to any labor trip charges crane rental taxes or additional parts refrigerant or processing handling charges required to make the unit operational Since product improvement is a continuing effort we reserve the right to make changes in specifications without notice 2175 West Park Place Blvd Stone Mountain GA 30087 800 321 1881 www heatcraftrpd com H IM 82C 0910 HEATCRAFT 25 Worldwide Refrigeration Heatcraft Refrigeration Products LLC 2175 West Park Place Blvd Stone Mountain GA 30087 P 800 321 1881 www heatcraftrpd com Since product improvement is a continuing effort we reserve the right to make changes in specifications without notice
26. hort circuited e probe not compatible with the instrument The alarm signal EO is steady if it is the only active alarm the temperature value is not displayed while it fl ashes if other alarms are active or the second probe is displayed E1 flashing Evaporator probe or food conservation probe error probe not working the probe signal is interrupted or short circuited e probe not compatible with the instrument E2 flashing Condenser probe or food conservation probe error probe not working the probe signal is interrupted or short circuited e probe not compatible with the instrument IA flashing Immediate or delayed alarm from multifunction digital input checkthe multifunction input and parameters A4 and A7 LO flashing Low temperature alarm The probe has measured a temperature lower than the set point by a value that exceeds parameter AL check parameters AL Ad and AO The alarm is automatically reset when the temperature returns within the set limits see parameter AL HI flashing High temperature alarm The probe has measured a temperature higher than the set point by a value that exceeds parameter AH check parameters AH Ad and AO The alarm is automatically reset when the temperature returns within the set limits see parameter AH EE displayed during operation or on power up unit parameter reading error See Data errors EF displayed during operation or on power up operating
27. ively the time d8 has not elapsed 49 043u0 after modifying a parameter the controller continues working with the old values the evaporator fan does not start 1 18 the instrument has not updated the old value or alternatively the parameter setting procedure has not been ended correctly by pressing the SET button for s 1 a compressor and fan start delay has been set 2 if FO 1 fan managed by fan controller the evaporator is hot the evaporator temperature can be read by selecting parameter d dripping in progress F1 evaporator fan control set point too low post dripping delay set 3 if FO 0 F2 1 and the compressor is off dripping in progress post dripping in progress turn the instrument off and on again or alternatively reprogram the parameters correctly 1 parameter cO 2 parameters FO F1 Fd dd and d 3 parameters FO F2 dd and Fd PRO Top Mount Packaged Refrigeration System Outdoor HEATCRAFT Device Setup Set 1 Low Temperature Models L6 w 10 F Set Point set o set 1 Set set s seta Parameter Description i Default Set point Minimum set point value Maximum set point value Minimum compressor off time Type of Defrost Interval between defrost End defrost temperature set point Maximum defrost duration ALARM_ED Defrost on power up Dripping time Enable evaporator fan control Stop evaporator fan if compressor off Evaporator fan status during
28. k on line 4 Defective contactor or coil 4 Repairor replace 5 System shut down by safety devices 5 Determine type and cause of shutdown and correct it before resetting safety switch 6 Nocooling required 6 None Wait until calls for cooling 7 Motor electrical trouble 7 Check motor for open windings short circuit or burn out 8 Loose wiring 8 Check all wire junctions Tighten all terminal screws Compressor 1 Flooding of refrigerant into crankcase 1 Check setting of expansion valves noisy or vibrating 2 Worn compressor 2 Replace High 1 Non condensables in system 1 Remove the non condensables discharge 2 Fannotrunning 2 Check electrical circuit Replace if motor fails pressure 3 Dirty condenser coil 3 Clean 4 System overcharged with refrigerant 4 Reclaim refrigerant and recharge proper amount Low discharge 1 Insufficient refrigerant in system 1 Checkfor leaks Repair and add charge pressure 2 Low suction pressure 2 Seecorrective steps for low suction pressure High suction 1 Excessive load 1 Reduce load or add additional equipment pressure 2 Expansion valve overfeeding 2 Checkremote bulb Regulate superheat Low Lack of refrigerant 1 Checkfor leaks Repair and add charge see refrigerant charge chart pg 2 1 suction 2 Evaporator dirty or iced 2 Clean pressure 3 Expansion valve malfunctioning 3 Check and reset for proper superheat
29. l may involve danger to the safety of the users and cause faults on the instruments and the components connected Fit the unit with all the electromechanical safety devices required to guarantee correct operation and the complete safety of the user s A 5 et D CONTROLLER WIRING PJEZ C Y NTC PTC PROBES 115 Vac or 12 Vac Vdc 12 Display 0 BUT NO FUNCTION compressor defrost auxiliary output RTC not available or not enabled and at tEN 0 least orno one time time band has band set been set available enabled tEN 1 on if the clock is no alarm in progress three digits with decimal point and range 199 to 999 See parameters 4 5 6 for the type of probe displayed values in C F and decimal point alarm in progress PRO Top Mount Packaged Refrigeration System Outdoor HEATGRAET Preliminary Configurations Once the electrical connections have been completed simply power up the controller to make it operative Keypads Heatcraft recommends that you check the parameters listed Control Parameters set point differential Defrost Parameters interval between two defrosts NORMAL OPERATION pressing pressing the button with other alone buttons pressed together with 3 activates deactivates the continuous cycle START UP end defrost temperature maximum de
30. motors on evaporators Fan Pressure Control Fan Temperature Control Drain Line Heater Drain Line Heater T stat Weather Hood Medium Weather Hood Large 21 4 Service Information HOLIMS MS HOLIOVdVO N YH 2H GND 5 7 A3 LHVIS YS HOLIMS ATOAD 3H 1SSHHd Odd HOLONW HOJIVHOdVA W43 HOLON H3SN3GNOO W49 c8c LAN HOLIOVdVO LYVLS S HOLIMS 3HSSaHd HOIH SdH JIVISONWMH3HL SANIT NIVHG HJIV3H ASVOUNVAD HOD HOLIMS 3 IOAO SYN LVWeAdWAL SAL IVLSOWXYSHL WOO LH JIVISONWMHZJH UWIT 3 IV3H 1H NIVHG HIA HOLOVINOO HOSSHMHdlWOO 55 ON3931 HOSSaHdWOO 3891L 0 LLd PPOW NMO8 MS xovia 3LIHM vi NM NM 5 z D a 5 p L od Go iagram for DRO System Typical Low Temp MOTI3A B 2 v18 ova m HOO 5 MOTHA 5 31IHM AVHO prom AVHO ane c d NM 16 MOTI3A NM MOTI3A MOTT3A is EE Diagram 1 Wiring D jase Aq U3TIOHLNOD NOIIVH35IHJ3H ZHO9 ML AOETZ 807 LON SNISIM 1 AINO SYOLONGNOD Y3ddO9 JSN NOILO3LOYd 3SVHd 3 19NIS AHVIWIHd widwide Refrigerati
31. nt and minimum off time has elapsed the temperature control will close and re energize the compressor contactor Electric Defrost Sequence of Operation for Freezers 1 During normal operation at the preset time intervals the temperature defrost control will de energize the compressor contactor and evaporator fans and energize the defrost heaters These functions are controlled through relays on the controller 2 When the coil has defrosted fully and has reached the preset coil temperature as sensed by the coil temperature sensor the defrost heater de energizes and the fan delay and drip sequences begin 3 Thetemperature defrost control energizes the compressor contactor starting the compressor and condenser fan s 4 Freezer evaporator fans will be energized by the temperature defrost control when the coil temperature reaches 35 F or fan delay time has elapsed PRO Top Mount Packaged Refrigeration System Outdoor HEATCRAFT Refrigeration Defrost Sequence of Operation The sequence of operation varies depending on the model that has been installed The three basic models are Low Temperature Medium Temperature and High Temperature models The particular model can be determined by the seventh digit of the model number See Tables 1 3 for details and settings Control of the refrigeration and defrost system is provided by the Carel controller along with a space box temperature sensor and a coil defrost temperature sen
32. o attach unit to ceiling Through bolts should be insulated or non conductive to prevent sweating The chassis is weather stripped around the air grille and will seal to the box roof The trim ring shipped loose when provided should be installed around the air diffuser when secured with the hardware provided Be sure to adhere to your local standard construction codes General Safety Information 1 Installation and maintenance to be performed only by licensed contractor 2 Ensure that the structural integrity of the box can withstand the weight of the PRO See page 2 for unit weights 3 Avoid contact with sharp edges and coil surfaces They are a potential injury hazard Wear gloves during moving and rigging 4 Make sure all power sources are disconnected before any service work is done on units Changing the EZY 1 Press Set button and hold in until the display flashes PS 2 Pressthe Set Button and the display will change to 0 and will begin to flash Press the up button until 22 is displayed Press the Set button Press the down button 2 times EZY will be displayed Press the Set button Select the proper number for the model needed by pressing the up or down key dew e 1 LLow temperature model e 2 MMed temperature model 3 H High temperature model 8 Press Set and wait for unit to return out of programming mode 9 Disconnect power 10 Press the Set Button while turning unit On 1
33. of amerchantable quality free of defects in material or workmanship under normal use and service for a period of two 2 years from date of original installation or thirty 30 months from date of shipment by Heatcraft Refrigeration Products LLC whichever first occurs Service Parts for product out of original warranty should be so warranted for a period of twelve 12 months from date of shipment Any product covered by this order found to Heatcraft Refrigeration Products LLC s satisfaction to be defective upon examination at Heatcraft Refrigeration Products LLC s factory will at Heatcraft Refrigeration Products LLC s option be repaired or replaced and returned to Buyer via lowest common carrier or Heatcraft Refrigeration Products LLC may atits option grant Buyer a credit for the purchase price of the defective article Upon return of a defective product to Heatcraft Refrigeration Products LLC s plant freight prepaid by Buyer correction of such defect by repair or replacement and return freight via lowest common carrier shall constitute full performance by Heatcraft Refrigeration Products LLC of its obligations hereunder Hermetic compressors furnished by Heatcraft Refrigeration Products LLC are subject to the standard warranty terms set forth above except that motor compressor replacements or exchanges shall be made through the nearest authorized wholesaler of the motor compressor manufacturer not at Heatcraft Refrigeration Products
34. on ATCRAFT Freezer Electric Defrost Systems 22 5 Wiring Information uoneunojuj S HOLIMS MS HOLIOVdVO NNN H3lV3H LSOMNHJ3G 7 AVISHIHVIS HS HOLIMS 310AO 3H SSHHd Odd HOLOINN HOJ1VHOdVA W4 HO LON HJSN3GNOO W49 cac LON SHIM NM HOLIOVdVO LHVIS OS HOLIMS 3HSSdHd SdH JVISOWMSHSHLE ANI YaLVSH ASVOMNVAD HOO HOLIMS 3 1OAO 33fnlveadlWal OAL JIVLSOWHZJHL WOOd 14 JIVISOWMHZSH LIATT2IV3H 1H W3IV3H ANI HIA HOLOVINOO HOSSHMHdWOO 55 ON3911 HOSSHHdWO2 ATCHAFT Worldwide Refrigeration 389WcZOLLd t MS MOTI3A 9 9 dW3LWOOY MOTI3A 9 1 2 E E o S jase Aq ZHO9 ML AOEZ 807 Diagram 2 Wiring Diagram for PRO System Typical Medium Temp LON AHOLOV AINO SHOLONGNOD Y3ddO9 JSN NOLLO3 LO3d 3SVHd 3 T19NIS AHVMWIHd 5 du E E L d gt ue 2 2 L2 ee E 9 2 9 E c Cooler Electric Defrost Systems 23 TCRAFT 5 z p a 5 D
35. ow the name of the probe Pr1 Pr2 or Pr3 only on the models with 3 inputs and with multifunction input configured as a probe and after 1 s the temperature measured by the selected probe will be displayed To display the other probes press DOWN again To return to the normal display wait 3 s without pressing any buttons exit by timeout Temperature Display The temperature displayed the unit of measure and the decimal resolution can be set according to the following parameters 4 5 and 6 14 select probe displayed Used to choose whether to display the temperature read by the control probe Probe 1 Probe 2 or the status of the multifunction input analogue or digital Parameter 4 selects the probe shown on the display all the other display and control modes remain unchanged IMPORTANT the easy compact models can display up to 2 probes 14 Installation and Operations Manual 15 select C F Defines the unit of measure used for temperature control 5 0 to work in C 5 1 to work in F WARNING when changing from one unit of measure to the other all the values of the temperature parameters are modified to the new unit of measure The max and min limits of the absolute temperature parameters are the same for both C that F The range of temperatures allowed is therefore different between C and F 6 disable decimal point Used to enable or disable the temperature display with the r
36. parameter reading error See Data errors 16 Installation and Operations Manual Ed flashing The last defrost ended after exceeding the maximum duration rather than when reaching the end defrost set point check parameters dt dP and d4 check the efficiency of the defrost The message disappears when the next defrost ends correctly dF flashing Defrost running e this is not an alarm signal but rather a message that the instrument is running a defrost Only shown if d6 0 CHt flashing Dirty condenser alarm check parameters A4 Ac AE and Acd EtC flashing Internal clock error Data Error In certain operating conditions the instrument may detect errors in the data saved These errors may compromise the correct operation of the instrument If the microprocessor detects a data saving error the display shows the message EE If the fault persists the controller needs to be replaced If on the other hand the message disappears it can continue to be used When EE error occurs frequently and or remains for some time the controller should be checked as the original precision may not be guaranteed PRO Top Mount Packaged Refrigeration System Outdoor Modifying the Parameters PARAMETER NAVIGATION The operating parameters modifiable using the keypad are divided into two types frequent type F and configuration type C Access to the latter is protected by password default 22 to prevent acciden
37. pressor Off time is 4 minutes d od id i iic hour counter drip time Drip Time of 2 minutes ends coil Compress r starts and P Off Off evaporator fans delay for 2 freeze begins F minutes to freeze the coil Evaporator fans start after 2 min On On oft delay HEATCRAFT Installation and Operations Manual TABLE 6 Model PTT Medium Temperature Models EZY SETTING 2 SET POINT IS 34 F These models are intended for cooler applications and have electric defrost These models are intended for coolers that may be operated at a lower saturated suction temperature and require electric defrost to clear the coil Condenser Evaporator Defrost Status Compressor Fans Fans Heaters i unit shows OFF depress the button and hold for three seconds Display alternates DFF and Room Temperature O E If coil temperature is below 65 F If itis above defrost is not initiated Drip Time and Freeze Time are ignored System Timer Begins 2 min drip time Compressor and evaporator fans start o E Automatic Defrost on start up Defrost Sensor reaches 65 F and defrost is terminated Cooling Cycle initiated Drip Time Drip Time of 2 minutes ends EN s49 043u0 Box Temperature 33 9 satisfied 2 F Differential Minimum Compressor Off Time is 4 minutes Electric Defrost Compressor starts and evaporator fans delay for 2 minutes to freeze coil Box
38. sor The controller will control on and off switching for the compressor condenser fan motor s cycles with the compressor evaporator fan motor s and electric defrost heaters for electric defrost The Carel controller is pre programmed for all three applications This is done with the use of the parameter list The parameter list can be changed by entering the Carel Controller and changing the EZY setting See page 15 TABLE 5 Model PTT Low Temperature Models EZY SETTING 1 SET POINT IS 10 F These models are intended for freezer applications and require electric defrost Status Compressor Fans Fans Heaters Display alternates OFF and Room If urit shows depress Off Off Off Off the button and hold for Temperature three seconds If coil temperature is below Automatic Defrost on start up Off Off Off On 6 gt dove not initiated Drip Time and Freeze Time are ignored Defrost Sensor reaches 65 F and oft off off off defrost is terminated System Timer Begins 2 min Cooling cycle initiated Drip Time off off off off drip time Drip Time of 2 minutes ends coil Compressor staris and P Off Off evaporator fans delay for 2 freeze begins minutes to freeze the coil Condenser Evaporator Defrost 3 Controllers Evaporator fans start after 2 min On oft delay Box Temperature 10 1 F i satisfied 2 F Differential Minimum Box Temperature rises to 8 0 F Com
39. t Selction EZY NOTE torestore the slected rapid parameter set at any time turn the controller off and on again while holding SET The desplay shows CE to indicate that the selected rapid set EZY 1 2 3 has again over written the operating parameters thus restoring the original set of paremters Table of Alarms and Signals torestore all the parameters and return to the original default values factory settings turn the controller off and on again while holding DOWN and SET until the display shows Use this procedure with extreme car as it may compromise the fundamental control settings The easy controller features the EZY parameter which is used to quickly choose a list of parameters with corresponding values for the control of the refrigeration system When an alarm is activiated the display shows the corresponding message that flashes alternating with the temperature if fitter and enabled the buzzer and the alarm relay are also activiated All the alarms have automatic reset that is they stop when the y EZY 0 brings no change causes are no longer present except for alarm CHt which has manual reset instrument on off using the UP button or by discon necting the power supply Pressing the SET button mutes the buzzer while the code displayed and the alarm relay only go off when the causes of the alarm have been resolved The alarm codes are shown in the able below 3 Controllers Alarm
40. tal or unauthorized modifications Accessing the type F parameters press the SET button for more than 3 s if there are active alarms mute the buzzer the display shows the parameter code PS password e use the UP and DOWN buttons to scroll the parameters The LED corresponding to the category of parameters will be on e press SET to display the value associated with the parameter increase or decrease the value using the UP or DOWN button respectively press SET to temporarily save the new value and display the parameter again repeat the procedure for any other parameters that need to be modified press the SET button for more than 3 s to permanently save the parameters and exit the parameter setting procedure Accessing the type C parameters press the SET button for more than 3 s if there are active alarms mute the buzzer the display shows the parameter code PS password press the SET button to access the password setting use the UP and DOWN buttons to scroll the numbers until displaying 22 password to access the parameters press the SET button to confirm the password e use the UP DOWN buttons to scroll the parameters The LED corresponding to the category of parameters will be on see Table below e press SET to display the value associated with the parameter increase or decrease the value using the UP or DOWN button respectively press SET to temporarily save the
41. tions Manual Troubleshooting The following table shows a number of situations that may occur on the various models The most frequent causes and corresponding checks are described Problem Cause Checks compressor delay set defrost post parameters cO c1 and c2 and dd dripping in progress alarm delay set parameters Ad c6 d8 without actually being active when the contact opens closed in normal operation the alarm connected to the multifunction alarm delay set or parameter programming 1 if A4 1 input is not detected ITF 2 the status of digital input A7 the defrost is not activated defrost duration too short dP parameters dP and dl the compressor does not start signalled by the compressor LED flashing the temperature is over the set limits but there is no alarm message and the buzzer if fitted does not sound interval between defrosts dl 0 in this case the defrost is not activated the end defrost temperature is too low or parameters dt and d defrost probe the evaporator temperature is too high the manual defrost is not activated and the compressor protection times set parameter d9 select d9 1 defrost LED flashes the high temperature alarm is shown after a the alarm delay after defrost is too short or parameters d8 and AH defrost the alarm threshold is too low the display remains frozen even after the the ambient temperature has not yet wait or reduce d8 defrost reached the set point or alternat
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