Stimmen - 4, Durchschnittliche Bewertung: 3.5
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Anleitung Zusammenfassung
Use spreader bars to prevent slings from damaging unit panels. Do not roll unskidded unit on pipes or rollers. Skid Removal — Remove the 4 bolts holding top frame in place and lift frame from unit. Remove compressor compartment end panel. Raise and block up compressor end of unit about 10 inches. Remove 4 bolts and nuts, 2 in end corners and 2 where compressor and condenser sections meet. Lower unit. Raise and block opposite end. Remove remaining 2 bolts and nuts. Position Unit so air flow is unrestricted for at least 2 ft on each side, 3 ft on each end, and for at least 5 ft above unit top. See Fig. 1. Erect Unit using legs attached to unit base skid. Block up or suspend unit. Bolt leg to each corner of unit. Bolt 2 legs to bottom of unit where compressor and coil sections meet. Lower unit. Compressor Mounting — As shipped, compressor is held tight by self-locking bolts. BEFORE STARTING UNIT — Loosen self-locking bolts until the flanged washer is still snug but can be moved sidewise. Do not remove shipping bolts. REQUIRED A ¡ft FLOW CLEARANCE 5-0“ I V RtS5)NG P0ms<4} ¡g DIAM (6) FLOOR MOUNTiNS HOLES LEGEND A — 1-3/8-in. ODF Suction Line Conn. Z-\/2-in, Oiam Hole D — '-■J/4-i<\. Slectrkai Conn. t-3/^-in. Diam Bote 8 — 5/8-in. ODF Liquid Line Conn. 7/8-in. Diam Hot© C — 3/4-in. Thermosiat Conn. 7/8-in. Diam Hoie Certified dimension drawings are avaita&te on request. E — 3/4-in. Fan Coil Control Wir« Conn. 7/8-in. Oiam Hole Fig. 1 — Physical Data and Dimensions © Carrier Corporation 1971 Form 38AD-4SI Table 1— Physical Data (60-Hz) UNIT 38AD 012 014 016 OPER WT (lb) 770 805 970 REFRIGERANT 22 22 22 COMPRESSOR Recip Hermetic 6 Cyl; 1750 Rpm Model No. 06DD328 06DD537 06DD537 Oil (pts) Suniso 3GS or Capella Bl 10 10 10 Crankcase Htr Watts 75 75 75 Unloader Setting Load 70 ± 1 psig 70 ± 1 psig 70 ± 1 psig Unload 60 ± 2 psig 60 ± 2 psig 60 ± 2 psig OUTDOOR AIR FANS Axial Flow; Direct Drive No. ...Rpm 2...1085 2 ..1085 3... 1120 Diam (in.) 22 22 22 Motor Hp (NEMA) % l/2 % Nom Cfm Total 8800 8000 13,000 CONDENSER COIL Face Area (sq ft) Storage Cap. (lb)* 19 1 19.1 26.2 17.7 26.5 51 CONTROLS H Pressurestat Settings High Cutout 400 ± 5 psig 400 ± 5 psig 364 ± 5 psig Cut-In 300 i 20 psig 300 ± 5 psig 264 ±15 psig Low Cutout 29+5 psig 29 ± 5 psig 29 ± 5 p s i g Cut-In 64 + 10 psig 64 ± 10 psig 64 ± 5 psig Fan-Cycling Thermo. No. 2 Opens Closes 60 + 2 F 60 + 2 F 70 F 65 + 4 F 65 ± 4 F 75 F No. 3 Opens — — 57 F Closes - - 62 F FUSIBLE PLUG 200 F 200 F 200 F ‘Storage capacity is with condenser 80% full of liquid R-22 at 130 F for 38AD012 and 014, and 120 F for 38AD016. Fan-Cycling Thermostat temperature sensing bulb and coiled capillary are taped to compressor conduit in compressor compartment for shipment. Carefully remove tape and uncoil capillary. Route bulb and capillary behind compressor and out of compressor compartment thru space under right-hand condenser coil. Do not kink or damage capillary or sensing bulb. Position sensing bulb in inlet airstream. With mounting clamp and hardware provided in parts package, secure sensing bulb to lower tube sheet near compressor so that it does not touch coil fins. Be sure airstream across bulb is unrestricted and that bulb does not receive direct sunlight. Refrigerant Line Sizes will depend on length of piping required between condensing unit and evaporator. Consideration must be given to liquid lift and to compressor oil return (see Table 2). Refer to Part 3 of Carrier System Design Manual for design details and line sizing. Refer to Evaporator Installation Instructions for additional information. Refrigerant Drier and Moisture Indicator — A filter-drier and a liquid-moisture indicator are shipped with unit for field installation (Table 2). Install according to manufacturer’s instructions. Receiver — No receiver is provided with unit. It is recommended that one not be used. Piping Procedure — Do not remove plastic dust plugs from suction and liquid line stub in compressor compartment until piping connections are ready to be made. Pass nitrogen or other inert gas thru piping while brazing, to prevent formation of copper oxide. Install field-supplied thermostatic expansion valve(s) to evaporator section. If two thermostatic expansion valves are installed for two-step cooling, install field-supplied liquid line solenoid valve ahead of second expansion valve. Install filter-drier in the common liquid line just ahead of both expansion valves. Table 2 — Liquid Line Data UNIT MODEL 38AD MAX ALLOW. LIQUID LIFT (ft) LIQUID LINE Max Allow. Press. Drop (psi) Max Allow. T emp Loss (F) Fi Iter-Drier and Sight Glass Flare Conn.* (in.) 012 75 7 1.5 5/, 014 50 7 1.5 % 016 78 7 1.0 % * I n let and outlet Safety Relief — A fusible plug is located on compressor crankcase (Fig. 2). Do not cap this plug. If local code requires additional safety devices, install them as directed. Fig. 2 — Tee Connection Power Wiring — Unit ...