KeepRite Parallel Manual Download

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K90-KPCS-IM-2

18/04/22

- 23 -

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Summary of Contents for Parallel

Page 1: ...ogram Service Parts Availability Equipment Start Up Information Product Support Resources As Built Service Parts List Parallel Compressor Systems Installation and Maintenance Manual Air Water and Remo...

Page 2: ...to those ordered and to electrical power avail able at the job site Save all shipping papers tags and instruction sheets for reference by installer and owner NOTE Accessories such as drier cores run...

Page 3: ...essary rigging should be engaged to set the Rack into position Lifting lugs have been provided along the base frame c channels for attaching lifting slings Spreader bars and lifting slings should be s...

Page 4: ...ATIONAL REFRIGERATION AND AIR CONDITIONING PRODUCTS INC THIRD ANGLE PROJECTION 2 ALL DIM S ARE OUTSIDE DIM S UNLESS SPECIFIED 1 FOR STANDARD TOLERANCES REFER TO DOCUMENT EN 311 3 HEADER BODY ENDS ARE...

Page 5: ...pply through a properly sized branch circuit protection disconnect switch The entering service fuse must not exceed the maximum overcurrent protection MOP value on the unit data plate Field connected...

Page 6: ...this is approximately 1 3 psig 9 0 kPa for R 404A At the temperatures encountered in the condenser receiver and liquid line a certain amount of oil is always being circulated with the refrigerant thr...

Page 7: ...cities at reduced refrigerant flow IMPORTANT PIPING NOTE REFRIGERANT PIPING cont d IMPORTANT All suction lines outside of the refrigerated space must be insulated During the lower capacity running mod...

Page 8: ...ed on each condenser or at compressors to control fan cycling and split circuiting Refrigeration controller may require field program ming to perform major functions as per available data All the set...

Page 9: ...ruments Copper jumper lines should be used to interconnect both high and low pressure sides of the system These lines should be at least 3 8 O D in order to handle the light density vapor at high vacu...

Page 10: ...ng a low temperature system Blend type refrigerants 400 series i e R404A must not be vapor charged unless the cylinder is completely emptied into the system Weigh the refrigerant drum before and after...

Page 11: ...em R 12 R 22 R 502 Copeland Ultra 22CC A A P Mobil EAL ARTIC 22 CC A A P ICI Virginia KMP Emkarate RL 32CF A A P Thermal Zone 22CC A A P Witco Suniso 3GS P P PM Texaco Capella WF32 P P PM Calumet RO15...

Page 12: ...is more than doubled as compared with conventional lubricants Special care should be taken Refer to Bitzer Technical Bulletin KT 510 2 section 5 for additional information COMPRESSOR OILS cont d Refri...

Page 13: ...e temporarily wired for continuous operation until the room temperature has stabilized 9 Observe the system pressures during the charging and initial operation process DO NOT add oil while the system...

Page 14: ...l down can cause structural problems in pre fabricated rooms and will damage crack concrete floors Reduce room temperature by 10 to 15 F 5 6 to 8 4 C per day Hold this temperature for 24 to 48 hours a...

Page 15: ...and will result in piston ring wear piston and cylinder wall damage If adjustment to the suction superheat is required it should be done either by adjusting the thermostatic expansion valve at the eva...

Page 16: ...than the compressor nameplate values 6 To check the high pressure control setting it is necessary to build up the head pressure to the cut out point of the control This can be done by stopping the con...

Page 17: ...lay 6 Motor windings damaged 7 Internal compressor mechanical damage Compressor starts but trips on overload protector 1 Improperly wired 2 Low line voltage 3 Loose wiring 4 Defective start or run cap...

Page 18: ...b charge Suction pressure too low 1 Shortage of refrigerant 2 Evaporator dirty or iced up 3 Clogged liquid line filter drier 4 Clogged suction line filter or compressor suction strainers 5 Expansion v...

Page 19: ...thermostat improper setting defective time clock 2 Electric heaters defective miswired low voltage 3 Not enough defrosts per day 4 Air defrost evaporator operating at too low of temperature require e...

Page 20: ...locked off to avoid accidental start up of the equipment 1 Check electrical components and tighten any loose connections 2 Check all wiring and electrical insulators 3 Check contactors to ensure prop...

Page 21: ...K90 KPCS IM 2 18 04 22 21 NOTES...

Page 22: ...porator terminals L1 L2___________ L2 L3 ____________ L1 L3__________ Amperage at evaporator L1___________ L2____________ L3______________ Expansion valve Manufacturer____________________________ Mode...

Page 23: ...email parts k rp com call 1 844 893 3222 x525 email orders k rp com call 1 844 893 3222 x501 email shipping k rp com call 1 844 893 3222 x503 web k rp com warranty email warranty k rp com call 1 844 8...

Page 24: ...s product improvement we reserve the right to make changes without notice KeepRite Refrigeration Brantford ON Longview TX 1 800 463 9517 info k rp com www k rp com AS BUILT SERVICE PARTS LIST Service...

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