Installation & Service Manual
Contents
1. 073 eres 4220 sose soe eoo ems 548 3497 4272 5126 et 7075 6497 sos asst ase swo e106 zz 10185 12245 3967 4796 5726 6755 ewe 11372 4097 5805 esas 7983 onn 5111 6604 ease 1041 5877 6932 ss2 Unit Model L U JEH2 0175 L 1 amp 3 R404A i JEH2 0225 L 1 amp 3 R404A a IN On Fo Oo N A o N m 1252 1080 1 f o gt N JO m N CO RTM C2 D e O Q CO gt N Oo BIA m ITN gt Fo BRI E AR co gt TR N a o o coo DA o Fo N Oo O nm gt TO Co Co Co CO Co Co Co Co Co Co Co Co N N Co N eo Co co co N O N O Co Co NI O eo A O 69 NI C2 TE Evaporating Temperature TA Ambient Temperature C Rating Codition Superheat 10K Sub cooling OK All duties are 10 Important Note On some applications the use of a Suction Accumulator may be required Warnings l The use of an expansion valve with maximum operating pressure MOP or a st2. esbo ub42 poem mmm mm a a a m mmm ueeJ9 MOo 9A mal a A Jojonjuon Ng 118 2 1055219109 CV d pay Sl ial n LI co LT porem ee AGA VEMM in NYA 5 c ja jo c SINSSAld 5 O I O gt c a cy gt 2 4 A c x 7 5 LL O c 96 96 Nua VUE E 81 d JEH2 0725 L 3 2 NNINIYd 1 W 0001 Sc40 n9o9oH3h CHAP 1300N iring g A N zi ur O 9 ua Page 12 Issue October 2008 JE Hall Health and Safety Important Note Only a qualified refrigeration engineer who is familiar with refrigeration systems and components including all controls should perform the installation and start up of the system To avoid potential injury use care when working around coll surfaces or sharp edges of metal cabinets All piping and electrical wiring should be installed in accordance with applicable codes ordinances and local by laws General Information Ensure the unit received is the correct model for the intended application e Ensure refrigerant voltage MWP FLC and are all suitable for the proposed application e Installation and maintena
3. Installation amp Service Manual JAE Hall Contents Nomenclature 3 Standard Product Configuration 3 Specifications General Data 4 Dimensional Drawings for Units 5 6 Performance Data Medium Temperature 7 Performance Data Low Temperature 8 Electrical Wiring Diagrams 9 12 Health amp Safety General Information 13 Installation Unit Site Location 14 Installation Clearances 15 Field Piping 15 Leak Detection 16 Pressure Testing 16 Safety Pressure Switch Settings 16 High Pressure Safety 16 Low Pressure Safety 16 Vacuum Moisture Removal 17 Service amp Maintenance 18 Technical Information Fan Speed Controller 19 Dual Pressure Switch 20 Issue October 2008 Page 2 JAE Hall Nomenclature JEH2 0150 M 1 1 Single Phase 3 Three Phase Application M Medium Temperature L Low Temperature Nominal Capacity in Horse Power 0150 1 5 HP JEH2 J International Version 2 Standard product configuration Series 2 3 4 IP54 rated control panel Combined mains isolator MCB overload Maneurop Hermetic compressor Compressor solder connections Compressor contactor Liquid receiver with fusible plug Drier Sight glass Non return valve Oil separator fitted as standard on all low temperature models Crankcase heater Manual high amp auto low pressure safety switch with Gomax flexible hoses Acoustic lining Compressor jacket Pressure actuated fan speed controller Issue October
4. 0300 M 1 8 3 R404A C2 NI gt a TR fa JN Co ce gt N 6 N Az O An BH 6076 7744 9606 11664 1316 3053 3517 4001 4505 502 5568 7140 3897 10839 12966 3147 3608 4093 4604 5139 5700 47 4943 eser 7995 9739 11627 3222 3680 arra 4701 5264 5862 6756 8569 10556 12719 15056 3242 4447 5065 5692 6330 7885 9756 11777 sero son 5190 5697 6489 7146 7152 9678 10724 126901 3453 4047 4668 5910 sero sera 7392 599 1194 14494 17257 4227 5601 282 695 825 11010 13360 16904 43401 sors 5606 6389 7o92 780 6043 7892 9897 12058 14971 4504 48 5817 est 7230 7974 743 209 Ese pee ee we 8835 931 9020 11219 13528 15947 184768 5504 6286 7127 029 1001 4351 6154 8073 10106 12255 14518 16807 5627 6424 7281 8198 9175 1021 O 495 O1 A O a D N On AB gt U THEE EN Co e ho oO 5 co 00 NI 2 ESE EXER ef ef
5. 404 CeD d SV Jossauduo 7 hole 6 c 19 p D UDLIMS i lek Tr peeds SAI UMOUG 4 E 1 ISZIONIVBAM 3 char EWSecONIIHAf 8 4 N EL IGOA0NJIHAN 8 cHl ENOOEONDIHAM 3 eH3 EWoSTONDIHIF 3 1300 Page 10 Ul 4040105 Issue October 2008 International J amp E Hall JEH2 0350 L 3 JEH2 0400 M L 3 JEH2 0500 M 3 JEH2 0600 M 3 JEH2 0675 M 3 Wiring diagram for models jojpiodbAe ui 01 Q yun 9 ON uaaJt MO aJA 9411 gD A9F99H 592 4949 amg 403 2041u0j JOSS34duoj 4 do5 UMO 44 E E UO 4 m TN 2 ng UMO JAH ys 4 anig E s 4 AT 20d Red Qd aod 491041409 54 5 paads upi 51 b aJnssaJ4gd Hal yong UMO Ugl vl 10 ETP 0 I3 VOTE lt lt 42914 96 56 WANA EE UMO 44 ang 22 gh ui NO4 0JOST CNG 9001 9H3C 3 EW00SONIIHIM 3 HaC EWO0FONIIHIP 3 Har U93UD MONI L_ z O CW0090NIIHIF 3 eHAf 100F0N99HHF 3 E 10SEONIIHIFM 8 1300 i A EL eL IL Page 11 Issue October 2008 JOIDIOADAD Ul jpjsouujSu 0 Q 93 quiod yun 9 ON International s ub4 Jasuapuog J amp E Hall paji ji
6. s ere ser 1355 2271 28190 _ ees ero 1084 1401 1552 1722 3081 790 ssiof 1394 1597 1799 1999 2198 2395 _ 677 1491 2074 2728 s451 4245 soo 1197 1621 2041 2240 2457 Lr pene 1203 1920 2420 szez sco 1416 1637 1859 2081 2500 2591 _ 2306 sose sez 4811 sese 706 1936 2193 2460 273 1524 2120 2815 3611 506 5602 esoz 1957 2213 2484 277 P 1281 1900 2540 sera avo stro 1787 2015 2262 2530 2817 3125 _ 2313 4366 5670 7159 esas tosse 2307 2616 2927 3240 355 2061 2000 3924 6527 e106 sero 2373 2686 soos 3327 sess 3966 1719 2482 3409 4502 5759 7182 2408 2731 3064 3407 3760 4123 a 2 8712 10598 12686 2683 3149 s610 4076 4547 5028 5043 8021 2818 3265 3722 4189 4666 5153 5650 EN 393 3347 4466 5750 7199 8813 10502 2847 3309 3786 4078 4785 5307 5844 s mE E E NEN Exec MN Ex E NS Unit Model JEH2 0150 M 1 amp 3 R404A JEH2 0225 M 183 R404A C2 CO JEH2
7. 2008 Page 3 Jak ical Specifications General Data Dry Weight Kgs 82 120 120 126 126 204 205 92 92 125 125 203 205 Compressor Fan Connections Receiver Vol uction Liquid Litres EH2 0150 M 1 EH2 0150 M 3 EH2 0225 M 1 EH2 0225 M 3 2 0300 1 MTZ36 5VM 220 600 2617 1 MTZ36 4V Model NO Co CO no id EH2 0300 M 3 236 4 90 300 2617 1 EH2 0400 M 3 EH2 0500 M 3 EH2 0600 M 3 0 N NI N NI N sad Fad Fad Fad Fad Ear ARIA PPO TPO Co N EH2 0825 M 3 MTZ100 4VM 220 90 0 6375 2 16 1 EH2 1000 M 3 0 0 pos N N EH2 0175 L 1 EH2 0175 L 3 EH2 0225 L 1 EH2 0225 L 3 EH2 0350 L 3 NTZ96 4VM EH2 0400 L 3 EH2 0725 L 3 EH2 0825 L 3 NTZ2714VM 270 960 6375 2 16 Cc1 O1 COC1 GO no no EH2 0675 M 3 no N IN D N Overall Dimensions mm O W
8. Insulation 400 IP 30 44 Cable connection The cable entry can be used for 6 14 mm dia cables A Pg 13 5 screwed cable entry can also be used for 6 14 mm cable With 8 16 mm cable a standard 16 screwed cable entry can be used Pressure controls with automatic reset LP Set the LP start pressure on the CUT IN scale range scala One rotation ofthe low pressure spindle 0 7 bar Set the LP differential on the DIFF scale One rotation ofthe differential spindle 0 15 bar The LP stop pressure is the LP start pressure minus the differential Note The LP stop pressure must be above absolute vacuum pe 1 bar If with low stop pressure the refrigeration compressor will not stop check to ensure that the differential value has not been set too high Contact systems High pressure HP 164 vU L Dual pressure A HHP 3 Dual pressure LPVHP n SPBT LP HP signal Dual pressure LPVHP Pressure controls with automatic reset HP Set the HP pressure on the CUT OUT scale One rotation ofthe HP spindle 2 3 bar Set the HP differential on the DIFF scale One rotation of the differential spindle 0 3 bar The HP start pressure is the HP stop pressure minus the differential Start and stop pressures for both the LP and HP sides of the system should always be checked with an accurate pressure gauge Pressure controls with manual reset Set the stop pressur
9. a potential cause of failure due internal arching The low pressure safety cut out should never be set below 0 1 bar 2 psig as shown in the following table For systems without pump down the LP switch signal contact shall be used to energize a low pressure safety alarm R4040 R134a R407c Cut Out bar Cut In bar Source Maneurop Issue October 2008 Page 16 JAE Hall Installation Important Note There must be no more than 12 starts per hour A higher number reduces the service life of the compressor If necessary use an anti short cycle timer in the control circuit A three minute time out is recommended Vacuum moisture removal Important Note Moisture prevents proper functioning of the compressor and the refrigeration system Air and moisture reduce service life and increase condensing pressure causing abnormally high discharge temperatures likely to destroy the oil s lubricating properties The risk of acid formation is also increased by air and moisture and copper plating can be generated in this way All these phenomena can cause mechanical and electrical failure Important Note Ensure that a good quality vacuum pump is used to pull a minimum vacuum of 250 microns 0 33 mbar Issue October 2008 Page 17 JAE Hall Service 8 Maintenance Important Note N Warning Disconnect the mains electrical supply before 7 servicing or opening the unit The condensing units are des
10. arting regulator is compulsory 2 Use only R404a specified components e g filter drier 3 The factory fitted crankcase heater must be permanently energized self regulating PTC Source Maneurop Issue October 2008 Page 8 International J amp E Hall O300 M 1 M L 1 2 JEH2 0225 for Models JEH2 0150 M 1 JEH2 0175 L 1 iagram d iring All wiring and connections to the condensing unit must be made in accordance with all local codes of practice Electrical Important Note JOJDIOUDAS 01 1984005 0 9jON Jasuapuo Wa 4 43408H ang E ng c u83 Jt K01 8J 401 504 407 i JossaJduo UNO i EN UMOJg dag 2 actu J p 14 Af ii vig AT TM II 43 042U03 paads uo Ls Ad Ih eJnsseJg al x p esd y js E ET A TIGLIONIIHIP 8 CHIP 8 TI TIGE20NIIHI INDOEONDIHIPM 3 TWOSIONIIHIN 3 CHAP poe Page 9 Issue October 2008 International JEH2 0150 M 3 JEH2 0175 L 3 JEH2 0225 M L 3 JEH2 0300 M 3 Wiring diagram for models JOJOIOUDAS Ul 0 joeuuoa 09 bunosuuoo 910N 4 5 p8a4414 4 43903 8s02 u047 MOA 404204
11. ation can be caused by Brazing amp Welding Oxides Filings amp Particles from de burring pipework Brazing Flux Moisture amp Air Issue October 2008 Page 15 Hall Installation Leak detection e Performaleak pressure test of the system using oxygen free nitrogen e The use of leak testing fluids is not recommended as this may interact with the lubricants own additives Pressure testing e When running a pressure test always use an inert dry gas such as oxygen free nitrogen e The pressure differential between the high and low side shall not exceed 24 bar 350 psig e Maximum test pressures are 25 Bar 370 psig on the Low Side 33 Bar 480 psig on the High Side Safety pressure switch settings The Danfoss KP17 HP LP pressure switch fitted to JEH model condensing units with auto reset for Low Pressure and manual reset for High Pressure is NOT factory preset Be sure that the high pressure setting does not exceed the receiver s maximum service pressure High pressure safety The high pressure safety switch is required to stop the compressor should the discharge pressure exceed the values shown in the following table The high pressure switch can be set to lower values depending on the application and ambient conditions R404a R134a Rate HP Setting 28 202 HP Setting psig Source Maneurop Low pressure safety The low pressure safety switch protects the compressor against deep vacuum operation
12. e on CUT OUT scale range scale Low pressure controls can be manually reset when the pressure is equal to the stop pressure plus the differential High pressure controls can be manually reset when the pressure is equal to the stop pressure minus the differential Page 20 Jak Hall CAR J amp E Hall Limited Hansard Gate West Meadows Derby DE21 6JN England Tel 44 0 1332 253400 Fax 44 0 1332 371061 Email helpline jehall co uk Web www jehall com Issue October 2008 Page 21
13. ef 8 po KANAN peo Evaporating Temperature Ambient Temperature Rating Condition Superheat 10K Sub cooling All duties are 10 Issue October 2008 Page 7 Performance data Low Temperature Cooling Capacity Watts 55 788 1051 1394 vez 270 ss vo ez vee 32 643 947 1277 ies 201 ss 756 ori 1196 tore 492 soo tise 1490 sez2 1718 2222 2767 sost 1948 1578 1839 2130 1567 2044 2572 suo 1248 1443 1667 1922 2206 J 017 1410 a868 2391 2979 195 2248 2141 2901 3786 4796 1298 1621 1963 2296 on 1845 2567 3420 4402 fras 1687 2021 2965 2719 sos 4044 ao 1689 1965 2245 st _ 200 4165 5251 ese 2097 2554 so 3574 ez azsa s24 3757 sora 2109 sos soa ater 2495 3396 4462 soos 2570 3079 3625 ase
14. em should be installed to utilize a pump down configuration e After installation the system should be allowed to run for 3 4 hours The oil level should then be checked and topped up as necessary The oil level should be visible at least 5 up the compressor oil sight glass For details of the oil requirements please refer to page 18 in the service and maintenance section Issue October 2008 Page 13 Jk Hail Installation Unit site location e Inorder to achieve maximum cooling capacity the installation location for the condensing unit should be carefully selected Install the Condensing unit in such a way so that hot air ejected by the condensing unit cannot be drawn in again short circuit of hot discharge air Allow sufficient space for maintenance around the unit Ensure that there is no obstruction air flow into or out of the unit Remove obstacles which block air intake or discharge e The location must be well ventilated so the unit can draw in and distribute plenty of air thus lowering the condensing temperature e optimize the unit running conditions the condenser coil must be cleaned at regular intervals nstallation clearance The installation location should allow sufficient space for air flow and maintenance around the unit E si ef cp Pa di a Pi E a p Issue October 2008 Page 14 JAE Hall Installation Field piping Important Note Line sizing shou
15. essary Issue October 2008 Page 18 International Technical Information Fan Speed Controller Part T Adiusting sere 4 Change over switch 2 Bellows 5 Terminal board 3 Range selling pointer B fara with depression en duas marina and 19bar 16 20 UNF Setting point is increased by turning the range adjusting screw clockwise It is decreased by turning the screw counter clockwise Adjustment should be within the range indicated for the setting pointer Cut off Fan motor stops when the pressure decreases below the value Pmin Min Speed Fan motor operates at the Minimum Speed when the pressure decreases below the value Pmin Full Voltage Set Point pressure setting for maximum speed Effective Proportional Band Pmin FV S E P B The RGE controls the speed of the condenser fan in refrigeration and air conditioning units that work all year long It keeps the condensing pressure at steady level by changing the speed of the fan according to the required condensing pressure 44 64 SA single phase type Ground Circuit Breaker or Fuse dub Fan Motor Cn Full speed External Of Auto speed Forced Operation Switch 4 terminals External forced operation switch On fan is forced to operate at Maximum speed regardless of the pressure Off fan operates according to the function with speed varying according to pressure For sin
16. gle phase type if an external forced operation switch is required then the switch and connecting cables not supplied should have current rating higher than the fan motor rating For example a 4A switch is recommended for the RGE model For three phase type use a forced operation switch with non voltage contact signal The operating characteristics may vary according to voltage frequency and fan motor characteristics Issue October 2008 Single phase type Effective Voltage RAS 9 Prin FS adjustable Page 19 Technical Information Dual Pressure Switch Technical leaflet Technical data Setting Issue October 2008 Pressure controls type KP Ambient temperature 40 65 C 80 C for max 2 hours DIN approved units 25 65 C 80 C for 2 hours Max working pressure LP PB 17 HP PB 32 bar KP amp PB 46 5 bar Max test pressure 20 bar p 35 KP 6 46 5 bar Contaciload Alternating current ACT 16 A 400 V ACS 16 400W ACIS 10 A 400 V Max starting current L R 112 A 400 V Direct currant DC13 12 W 220 V control current Properties according to EN 60984 7 Wire dimensions solid stranded flexible w out ferrules flexible with ferrules Tightning torque 0 75 2 5 mm 0 7 2 5 0 5 1 5 max 2 NM Rated impulse voltage AKV Pollution degree 3 Short circuit protection fuse 10 Amp
17. igned to give long life operation with minimum maintenance However they should be routinely checked and the following service schedule is recommended under normal circumstances The removal of the top side and front panels ensures that all parts are accessible 1 Compressor Inspect at regular intervals e Check for refrigerant leaks on all joints and fittings e Ensure that no abnormal noise or vibration is detected during test run Check the compressor oil levels and top up if required The oil level should be a 34 way up the sight glass Compressor Type Oil Type Order Reference MTZ Medium Temp Ester 160 PZ N23020042 NTZ Low Temp Ester 160 Z N23020043 2 Condenser Fan Motor Blade Clean and inspect at regular intervals Check for abnormal noise vibration and fan imbalance Ensure that the fan motor is clean and spins freely Check that the condenser fan blade 15 clean and free from restriction Note The Fan Motor is pre lubricated and factory sealed so no maintenance is necessary 3 Condenser Coil Clean and inspect at regular intervals e Check and remove the dirt and debris between the fins using a suitable chemical coil cleaner e Check and remove any obstacles which may hinder the airflow through the condenser coll 4 Power Supply Inspect at regular intervals e Check the running current and voltage for the condensing unit e Check the electrical wiring and tighten the wires onto the terminal blocks if nec
18. ld only be determined by qualified personnel All local codes of practice must be observed in the installation of refrigerant piping To ensure satisfactory operation and performance the following points should be noted for field piping arrangements Pipework routes must be as simple and as short as possible Avoid low points on pipework where oil can accumulate Suction gas velocity must be sufficient to ensure good oil return Use only clean dehydrated refrigeration grade copper tube with long radius bends Avoid flare type connections and take great care when brazing Use only silver alloy rods Run braze without over filing to ensure there is no leakage into the tube To prevent oxidation blow nitrogen through pipework when brazing Install insulation on all suction lines and on all pipes penetrating walls or passing through hot areas Adequately support all pipe work at a maximum of 2 metre intervals In vertical pipework the use of U trap and double suction risers is offen required These suction risers must always be fitted with a U trap at the bottom and a P trap at the top and never be higher than 4m unless second U trap system is fitted Correct line sizing will minimize the pressure drop and maintain sufficient gas velocity for proper oil return Important Nofe One of the main factors affecting equipment reliability and compressor service life is refrigeration circuit contamination During installation circuit contamin
19. nce are to be performed only by qualified personnel who are familiar with local codes and regulations and experienced with this tyoe of equipment The condensing unit contains moving machinery and electrical power hazards which may cause severe Injury or death Disconnect and shut off power before installation or service of the equipment e Refrigerant release into the atmosphere is illegal Proper evacuation recovery handling and leak testing procedures must be observed at all times e Units must be earthed and no maintenance work should be attempted prior to disconnecting the electrical supply e The electrical covers and condenser fan guards must remain fitted at all times e Use of the condensing units outside of the design conditions and the application for which the units were intended may be unsafe and be detrimental to the unit regardless of short or long term operation e he condensing units are not designed to withstand loads or stresses from other equipment or personnel Such extraneous loads or stress may cause failure leak injury Insome circumstances suction accumulator not supplied may be required It offers protection against refrigerant flood back during operation and also against off cycle migration by adding internal free volume the low side of the system e Tests must be conducted to ensure the amount of off cycle migration to the compressor does not exceed the compressor s charge limit e Wherever possible the syst
20. wW D LS N Co DD ALIA CO LS N Co CO1 O1 O1 gt lt gt lt gt lt Issue October 2008 Page 4 da E Hall Dimensional drawings JEH2 0150M1 JEH2 01 50M3 JEH2 0225M1 JEH2 0225M3 JEH2 0300M 1 JEH2 0300M3 JEH2 0175L1 JEH2 0175L3 JEH2 0225L1 JEH2 0225L3 Series 2 707mm 123 2 i 448mm 78ram Y Da LU eS T J 1109mm 1051 N jj AN ny nj SN Ly LE i NGE WS N N gt 22 ZA NS EN N 27 2 2 649mm JEH2 0400M3 JEH2 0500M3 JEH2 0600M3 JEH2 0675M3 JEH2 0350L3 JEH2 0400L3 Series 3 946mm 1 Th i i 500mm LH 529mm pe Ra 1 1335mm 1270 SS HT 884mm Issue October 2008 Page 5 Jag Han Dimensional drawings JEH2 0725L3 JEH2 0825M3 JEH2 0825M3 JEH2 1000M3 Series 4 812mm 1258mm _ 1181 mm _ 1436mm Issue October 2008 Page 6 J amp E Hall Performance data Medium Temperature Cooling Capacity Watts 640 962 1838 1781 2287 2860 ados 853 945 1137 1287 1330 1444 556 1180 1560 2062 2601 s204 oso 1068 1169 1205
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