Gebruiksaanwijzing /service van het product 25000102 van de fabrikant Heatcraft Refrigeration Products
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P ar allel C ompr essor S y st ems Bulletin No . H-IM-PCS Oc tober 2004 P ar t Number 25000102 (Replaces H-IM-72B, October 2004) Installation and Opera tion Manual.
2 Part # 25000102 T able of C ontents Introduction .............................................................................................................. 3 Inspection Unit Designation Model Denition Syst em W arranty .......................
Par allel Compressor S ystems Installation & Operations Manual, October 2004 3 P a ra l le l Comp ressor Syst ems Introduction P arallel Compressor systems are central refrigeration units employing 2 to 8 parallel piped compressors, a contr ol panel, and rece iver moun ted on one common base frame.
4 Part # 25000102 Insta lla tion a nd Op er a tions Ma nua l F igure 2. V ibration P ad Locations Sy stem W arranty This equipment is designed to operate properly and produce the rated capacit y when installed in accordance with good refrigeration practice .
Par allel Compressor S ystems Installation & Operations Manual, October 2004 5 Compr essor Spring Vibr ation Isola tors On units with this option, the compressors are secur ed rigidly to make sure there is no transit damage. Before operating the unit, it is necessary to follow these steps: 1.
6 Part # 25000102 Unit Ac cess Always provide sucient clearance f or unit maintenance and ser vice . Minimum clearances for most situations are described below (except 60 Inches of free space is required in fr ont of the control panel). Please note tha t these are minimums and more clearance may be r equired by local codes .
Par allel Compressor S ystems Installation & Operations Manual, October 2004 7 V entilation Requirements Indoor Units If compressors or condensing units are located in a machine room, adequate ventilation air must be provided to avoid an excessiv e temperature rise in the room.
8 Part # 25000102 In systems equipped with capacit y contr ol compressors, or where multiple c ompressors are used with one or more comp res sors cycled o for capac ity con tro l, double suction risers should be installed.
Par allel Compressor S ystems Installation & Operations Manual, October 2004 9 In order to compensate for the expansion of the tubing, it is necessary to estimate the amount of expansion and then provide osets or loops in the refrigerant piping.
10 Part # 25000102 Insta lla tion a nd Op er a tions Ma nua l Liquid Line Rise in Feet Refrigerant 10’ 15’ 20’ 25’ 30’ 40’ 50’ 75’ 100’ PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F R-12 5.4 2.8 8.1 4.
Par allel Compressor S ystems Installation & Operations Manual, October 2004 11 P a ra l le l Comp ressor Syst ems Line Size OD (in.) Refrigerant Liquid Line Hot Gas Line Suction Line at Suction T emperature -40°F -20°F 0°F 20°F 40°F 3/8 12, 134A 22 R-507, 502, 404A 4.
12 Part # 25000102 Insta lla tion a nd Op er a tions Ma nua l S y ste m C ap aci ty B T U/ H Su ct i on Li ne S iz e Su ct i on T em p er at ur e 20 ˚ F Eq uiv ale n t L eng ths 10 ˚ F Eq uiv ale n .
Par allel Compressor S ystems Installation & Operations Manual, October 2004 13 P a ra l le l Comp ressor Syst ems Su ct i on Li ne S iz e Li q ui d L i ne Si z e S y ste m C ap aci ty B T U/ H S .
14 Part # 25000102 Insta lla tion a nd Op er a tions Ma nua l S y ste m C ap aci ty B T U/ H Su ct i on Li ne S iz e Su ct i on T em p er at ur e 40 ˚ F Eq uiv ale n t L eng ths 20 ˚ F Eq uiv ale n .
Par allel Compressor S ystems Installation & Operations Manual, October 2004 15 P a ra l le l Comp ressor Syst ems Su ct i on Li ne S iz e Li q ui d L i ne Si z e S y ste m C ap aci ty B T U/ H Su.
16 Part # 25000102 Insta lla tion a nd Op er a tions Ma nua l Net Evap . Capacity T otal Equiv . Length R-12 & R-134A R-22 R-502 R-507 & R-404A Discharge Line (OD ) Liquid Line Cond . to Receiv er (OD ) Discharge Line (OD ) Liquid Line Cond . to Receiv er (OD ) Discharge Line (OD ) Liquid Line Cond .
Par allel Compressor S ystems Installation & Operations Manual, October 2004 17 P a ra l le l Comp ressor Syst ems W arning: I t is ille gal to kno wing ly v ent or dis cha rge any CFC’ s and HCFC’ s to the atmosph ere . ALL CFC ’ s and HCFC’ s must be reclaimed or recycled.
18 Part # 25000102 Insta lla tion a nd Op er a tions Ma nua l Refrigerant Distribution The distr ibution system is selec ted based upon the type of defrost for that particular system. For each set of liquid/suction lines a distribution system must be selected.
Par allel Compressor S ystems Installation & Operations Manual, October 2004 19 P a ra l le l Comp ressor Syst ems Elec tr onic Con trol S yst em The elec tronic controller has become the standard on parallel compressor systems.
20 Part # 25000102 Insta lla tion a nd Op er a tions Ma nua l V oltage Code 60 Hertz R ating 50 Hertz R ating Rating Min. Max. Rating Min. Max. B 230-1 207 253 - - - C 208/230-3 187 253 200/220-3 180 .
Par allel Compressor S ystems Installation & Operations Manual, October 2004 21 P a ra l le l Comp ressor Syst ems Copeland Part No . MFGRS. Model No .
22 Part # 25000102 Insta lla tion a nd Op er a tions Ma nua l Carlyle Part No . Danfoss Part No . Time Delay Pressure Di . P si (bar) Reset Cut-In C ut-Out 634-2008 OR P529-2130 60B2101 45 sec. 8 – 11 (.55 - .76) 4 - 8 (.28 - .55) Manual 634-2050 OR P529-2100 60B2151 Carlyle Part No .
Par allel Compressor S ystems Installation & Operations Manual, October 2004 23 P a ra l le l Comp ressor Syst ems Sight Glass & Moisture Indicator The sight glass/moisture indicator helps determine that a unit has sucient refrigerant charge and/or when the liquid line lter drier cores need to be r eplaced.
24 Part # 25000102 Insta lla tion a nd Op er a tions Ma nua l For Relief Devices set at 400 psig • Obtain the capacity at 400 psig setting • Locate this capacity or the nearest larger capacity in .
Par allel Compressor S ystems Installation & Operations Manual, October 2004 25 P a ra l le l Comp ressor Syst ems Series P100 Pressure C ontrol The P100 series, manufac tured by Johnson Control, I nc.
26 Part # 25000102 Insta lla tion a nd Op er a tions Ma nua l Module Replacement 1. Disconnect power at the fuse bo x 2. Remove wiring bo x from the retainer 3. Re mo v e the IRR 40 00 -9 3 Ring wit h an IRR P- 10 1 or e qu iv al en t retaining ring pliers 4.
Par allel Compressor S ystems Installation & Operations Manual, October 2004 27 P a ra l le l Comp ressor Syst ems to the compressor . Before the oil separat or is installed, an initial charge of oil must be added to it. This initial charge of oil is the amount that is needed to just oat the needle valve oat.
28 Part # 25000102 Insta lla tion a nd Op er a tions Ma nua l A C&R Model No . Connection Size Operation Pressure Di ., psig Oil Lev el, Sight Glass S-9010 3 BOL T 5 - 30 1/2 S-9010A 4 BOL T 5 - 30 1/2 S-9015 3/4” NPTF F .
Par allel Compressor S ystems Installation & Operations Manual, October 2004 29 P a ra l le l Comp ressor Syst ems Suction Filter Replaceable core suc tion filters are supplied as standard on all units. The flanged shell holds replaceable pleated lter elements suitable for installation in the suction line of refrigeration systems .
30 Part # 25000102 Insta lla tion a nd Op er a tions Ma nua l Superior V alve C ompany Replaceable Suction Filter On many parallel systems , the Superior Valve Co. suction lter is installed. • Alco C ontrols Alco Suction Filt er Com para ble to the Supe rior su ction lt ers and inter cha ngeab le cores .
Par allel Compressor S ystems Installation & Operations Manual, October 2004 31 P a ra l le l Comp ressor Syst ems Liquid Drain C ontrol Method This method is ideal for large capacity systems since a smaller regulator is r equired for liquid line than f or discharge line .
32 Part # 25000102 Insta lla tion a nd Op er a tions Ma nua l must be varied during the setting procedure and it is dicult to determine exactly when the bypass valve opens unless a pressure gauge can be locat ed at the valve outlet.
Par allel Compressor S ystems Installation & Operations Manual, October 2004 33 P a ra l le l Comp ressor Syst ems General Maintenanc e Schedule (Ser vice/Main tenance should be per formed only by a qualied / certied refrigeration ser vice technician.
34 Part # 25000102 SERVICE DIA GNOSIS CHART Symptom C ause Remedy Compr essor Does Not Run 1. 2. 3. 4. 5. 6. Motor Line open F use blown T ripped overload Control c ontacts dir ty or jammed in open position Piston seiz ed Fr ozen compr essor or motor bearings 1.
Par allel Compressor S ystems Installation & Operations Manual, October 2004 35 Symptom C ause Remedy Low Discharge Pressure 1. 2. 3. 4. 5. Insucient refrigerant in system F aulty condenser temp .
SERVICE REC ORD A permane nt data sheet shoul d be prepar ed on each installa tion , with a copy for the own er and the orig inal fo r the instal ling co ntra ctor’ s les. If another rm is to handle service and maintenance, additional copies should be pr epared as necessary.
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