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38AH044-134
Air-Cooled Condensing Units
50/60 Hz
Installation, Start-Up and
Service Instructions
CONTENTS INSTALLATION
Page
Step 1 — Rig and Place Unit — All units are
SAFETY CONSIDERATIONS ................ 1
designed for overhead rigging, anditisimportantthatthis
INSTALLATION ............................ 1-37
methodbeused.Liftingholesareprovidedintheframebase
Step 1 — Rig and Place Unit ............... 1
rails,whicharemarkedforrigging(seerigginglabelonthe
• DOMESTIC UNITS
unitandTables1,2A,and2
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The placement area must be level and strong enough to supportunitsonindividualisolationsupports.Supportchan- support the operating weight of the unit (see Table 3A or nel,hardware,andfastenersarefieldsupplied.Whenunitis 3B).Whenunitisinproperlocation,useofmountingholes inproperlocation,levelunitandboltintopositionwithfield- inbaserailsisrecommendedforsecuringunittosupporting supplied bolts. structure.Formountingunitonvibrationisolators,aperim- Units38AH124,134—For ease of shipment and handling, et
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Removesheetmetalcoverpanelsfromreturn-bendendof Step 2 — Check Compressor Mounting Module 124B or 134B. Place Module 124B or 134B in UNITS38AH044-084—Compressorsaremountedonpans position.The exposed return-bend ends of each module are and are held down by 4 bolts during shipment.After unit is now opposite each other and facing the service space. The installed,looseneachoftheseboltsuntilthesnubberwasher compressorsofeachmoduleareonoppositesidesoftheunit. can be moved with finger pressure. See Fig.
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DUAL CKT SINGLE CKT SUCTION 1 5 2 ⁄89 Dia [54 mm] 2 ⁄89 Dia [67 mm] CONNECTION(S) LIQUID 7 1 ⁄89 Dia [22 mm] 1 ⁄89 Dia [29 mm] CONNECTION(S) 11 5 SUCTION C 28- ⁄169 [627mm] 18-10 ⁄169[567mm] 1 5 LIQUID D 18-10 ⁄169[561mm] 18-10 ⁄169[567mm] 13 5 SUCTION (Ckt A) 18-7 ⁄169 [503mm] 28- ⁄89 [626mm] 5 SUCTION (Ckt B) 28- ⁄89 [626mm] — 3 5 LIQUID (Ckt A) 28-5 ⁄49 [756mm] 28-10 ⁄89 [879mm] 5 LIQUID (Ckt B) 28-10 ⁄89 [879mm] — Chart 1, Field Power Supply Connections UNIT VOLTAGE Hz DIAMETER — in. [mm] QT
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DUAL CKT SINGLE CKT SUCTION 1 5 2 ⁄89 Dia [54 mm] 2 ⁄89 Dia [67 mm] CONNECTION(S) LIQUID 7 1 ⁄89 Dia [22 mm] 1 ⁄89 Dia [29 mm] CONNECTION(S) 11 5 SUCTION C 28- ⁄169 [627mm] 18-10 ⁄169[567mm] 1 5 LIQUID D 18-10 ⁄169[561mm] 18-10 ⁄169[567mm] 13 5 SUCTION (Ckt A) 18-7 ⁄169 [503mm] 28- ⁄89 [626mm] 5 SUCTION (Ckt B) 28- ⁄89 [626mm] — 3 5 LIQUID (Ckt A) 28-5 ⁄49 [756mm] 28-10 ⁄89 [879mm] 5 LIQUID (Ckt B) 28-10 ⁄89 [879mm] — Chart 1, Field Power Supply Connections UNIT VOLTAGE Hz DIAMETER — in. [mm] QT
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Chart 1, Field Power Supply Connections LEGEND UNIT VOLTAGE Hz DIAMETER — in. (mm) QUANTITY 38AH C— Copper Fin Coils 5 MTG — Mounting 208/230 60 3 ⁄8 (92) 2 SAE — Society ofAutomotive Engineers 460, 575, 5 094 60 3 ⁄8 (92) 1 NOTES: 380 1. The approximate operating weight of the unit is: 5 346, 380/415 50 3 ⁄8 (92) 1 38AH-094--- 5088 lb (2308 kg) 38AH-094--C 5813 lb (2637 kg) 2. Unit must have clearances for airflow as follows: Top — Do not restrict in any way. Ends—5ft [1524 mm] Sides—6ft [1829 m
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LEGEND Chart 1, Field Power Supply Connections C— Copper Fin Coils UNIT MTG — Mounting VOLTAGE Hz DIAMETER — in. (mm) QUANTITY SAE — Society ofAutomotive Engineers 38AH 5 208/230 60 3 ⁄8 (92) 2 NOTES: 1. The approximate operating weight of the unit is: 460, 575, 5 104 60 3 ⁄8 (92) 1 38AH-104--- 5435 lb (2465 kg) 380 38AH-104--C 6160 lb (2794 kg) 5 346, 380/415 50 3 ⁄8 (92) 1 2. Unit must have clearances for airflow as follows: Top — Do not restrict in any way. Ends—5ft [1524 mm] Sides—6ft [1829 m
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Chart 1, Field Power Supply Connections NOTES: 1. The approximate operating weight of the unit is: UNIT DIAMETER 38AH-124--- 7260 lb (3293 kg) VOLTAGE Hz QUANTITY 38AH (in.) 38AH-124--C 8126 lb (3686 kg) 5 2. Unit must have clearances for airflow as follows: 208/230 60 3 ⁄8 (92) 1 Top — Do not restrict in any way. 124A 460, 575, 1 Ends—5ft [1524 mm] 60 2 ⁄2 (63) 1 124B 380 Sides—6ft [1829 mm] 5 346, 380/415 50 3 ⁄8 (92) 1 3. Mountingholesmaybeusedtomountunittoconcretepad.Theyarenotrec- ommended f
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NOTES: Chart 1, Field Power Supply Connections 1. The approximate operating weight of the unit is: 38AH-134--- 7507 lb (3405 kg) UNIT DIAMETER — 38AH-134--C 8357 lb (3791 kg) VOLTAGE Hz QUANTITY 38AH in. (mm) 2. Unit must have clearances for airflow as follows: Top — Do not restrict in any way. 5 208/230 60 3 ⁄8 (92) 1 Ends—5ft [1524 mm] 1 134A 460, 575, 380 60 2 ⁄2 (63) 1 Sides—6ft [1829 mm] 5 3. Mounting holes may be used to mount unit to concrete pad.They are not 346, 380/415 50 3 ⁄8 (92) 1 re
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Table 3A — Units 38AH044-084 Physical Data — 50/60 Hz (English) 38AH 044 054 064 074 084 OPERATING WEIGHT WITH Cu-Al 3259 3309 3565 3812 4057 REFRIGERANT (Approx) — Lb Cu-Cu 3547 3597 3998 4229 4735 SHIP WEIGHT WITH COIL PROTECTION ONLY (Approx) — Lb Cu-Al 3250 3290 3530 3780 4000 Cu-Cu 3538 3578 3963 4197 4678 TYPICAL OPERATING REFRIGERANT R-22 Charge (Approx) — Lb 62 72 88 104 130 Qty of Circuits Std 22222 Opt 11111 COMPRESSOR Type...Rpm Reciprocating Semi-Hermetic...1750 @ 60 Hz; 1458 @ 50 Hz
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Table 4A — Units 38AH094-134 Physical Data — 50/60 Hz (English) 124 134 38AH 094 104 124A 124B 134A 134B OPERATING WEIGHT WITH Cu-Al 5088 5435 3630* 3630* 3630* 3877* REFRIGERANT (Approx) — Lb Cu-Cu 5813 6160 4063* 4063* 4063* 4294* SHIP WEIGHT WITH Cu-Al 5630 5990 3907* 3907* 3907* 4080* COIL PROTECTION AND SKID Cu-Cu 6355 6715 4340* 4340* 4340* 4497* (Approx) — Lb TYPICAL OPERATING R-22 REFRIGERANT CHARGE (Approx) — Lb 148 135 88 88 88 104 Qty of Circuits 2 2 1111 COMPRESSOR Type...Rpm Recipro
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Fig. 7 — Modules 38AH124A or 134A — Shipping Locations of Piping and Sheet Metal Trim Kit CONTROL BOX SHEET METAL COVER PANEL (REMOVED) 24-in. (610-mm) SERVICE SPACE Fig. 8 — Correct Placement of Modules Without Piping and Sheet Metal Trim (Unit 38AH134 Shown) 12 RIG HERE RIG HERE RIG HERE RIG HERE
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Fig. 9B — Field-Installed Suction Line Loop FACTORY- INSTALLED SUCTION LINE LOOP Fig. 9A — Typical Module with Cover Panels Removed 38AH044-084,124,134 MOUNTING SPRINGS SHIPMENT BOLTS SHIPMENT BOLTS 38AH094,104 MOUNTING MOUNTING BOLTS RAIL BOLT (3) (2 SHOWN) BOLTS RAIL BOLT (3) (2 SHOWN) Fig. 10 — Outer View, Compressor Mounting 13
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38AH044-084 optional single-circuit units) shows required Step 3 — Make Refrigerant Piping location of solenoid valves and recommended locations for Connections the filter driers and sight glasses. Complete the refrigerant pipingfromtheevaporatortothecondenserbeforeopening the liquid and suction lines at the condenser. The field-supplied liquid line solenoid valve must be Table 5 — Liquid Lift installedattheevaporatortoavoidpossiblecompressor damageduringunitoperation.SeeFig.11(for38AH044- MAXIMUM
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*Field-Supplied. Fig. 12 — Required Location of Solenoid Valves and Recommended Filter Drier and Sight Glass Locations for 38AH044-084 Optional Single-Circuit Units LEGEND PIPE D DIAMETER A— PipeA, Suction Riser, without Trap Dual Circuit* UNIT B— Pipe B, Suction Riser with Trap Single Circuit* 38AH AB C— Suction Line to Condensing Unit D— Pipe D, Suction Riser Short Lift in. mm in. mm in. mm RED. — Reducer 5 5 1 044 1 ⁄8 41 1 ⁄8 41 2 ⁄8 54 STR — Street 5 5 1 054 1 ⁄8 41 1 ⁄8 41 2 ⁄8 54 NOTES: 5
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Table 6A — Refrigerant Piping Requirements — 38AH044-104 Dual-Circuit Units — 60 Hz TOTAL LINEAR LENGTH OF INTERCONNECTING PIPE — FT (M) UNIT 15-25 25-50 50-75 75-100 100-150 150-200 38AH (4.6-7.6) (7.6-15.2) (15.2-22.9) (22.9-30.5) (30.5-45.7) (45.7-61.0) L SLS L S L S L S L S 5 5 7 5 7 1 7 1 7 1 7 1 Ckt A ⁄8 1 ⁄8 ⁄8 1 ⁄8 ⁄8 2 ⁄8 ⁄8 2 ⁄8 ⁄8 2 ⁄8 ⁄8 2 ⁄8 044 5 5 7 5 7 1 7 1 7 1 7 1 Ckt B ⁄8 1 ⁄8 ⁄8 1 ⁄8 ⁄8 2 ⁄8 ⁄8 2 ⁄8 ⁄8 2 ⁄8 ⁄8 2 ⁄8 5 5 7 5 7 1 7 1 7 1 7 1 Ckt A ⁄8 1 ⁄8 ⁄8 1 ⁄8 ⁄8 2 ⁄8 ⁄8 2 ⁄8
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Table 7A — Refrigerant Piping Requirements, 38AH044-104 Dual-Circuit Units — 50 Hz TOTAL LINEAR LENGTH OF INTERCONNECTING PIPE — FT (M) UNIT 15-25 25-50 50-75 75-100 100-150 150-200 38AH (4.6-7.6) (7.6-15.2) (15.2-22.9) (22.9-30.5) (30.5-45.7) (45.7-61.0) L S L S L S L S LSL S 5 3 7 5 7 5 7 1 7 1 7 1 Ckt A ⁄8 1 ⁄8 ⁄8 1 ⁄8 ⁄8 1 ⁄8 ⁄8 2 ⁄8 ⁄8 2 ⁄8 ⁄8 2 ⁄8 044 5 3 7 5 7 5 7 1 7 1 7 1 Ckt B ⁄8 1 ⁄8 ⁄8 1 ⁄8 ⁄8 1 ⁄8 ⁄8 2 ⁄8 ⁄8 2 ⁄8 ⁄8 2 ⁄8 5 3 7 5 7 5 7 1 7 1 7 1 Ckt A ⁄8 1 ⁄8 ⁄8 1 ⁄8 ⁄8 1 ⁄8 ⁄8 2 ⁄8
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Table 8A — Refrigerant Piping Requirements for 38AH044-084 Optional Single-Circuit Units and 38AH124,134 Modular Units (Dual-Circuit) — 60 Hz TOTAL LINEAR LENGTH OF INTERCONNECTING PIPE — FT (M) UNIT 15-20 20-50 50-75 75-100 100-150 150-200 38AH (4.6-6.1) (6.1-15.2) (15.2-22.9) (22.9-30.5) (30.5-45.7) (45.7-61.0) L S L S LSLSLS LS 7 1 7 1 1 1 1 5 3 5 3 1 044 ⁄8 2 ⁄8 ⁄8 2 ⁄8 1 ⁄8 2 ⁄8 1 ⁄8 2 ⁄8*1⁄8 2⁄8*1⁄8 3⁄8* 7 1 1 5 1 5 1 5 3 1 3 1 054 ⁄8 2 ⁄8 1 ⁄8 2 ⁄8 1 ⁄8 2 ⁄8 1 ⁄8 2 ⁄8 1 ⁄8 3 ⁄8*1⁄8 3⁄8* 0
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Table 9A — Refrigerant Piping Requirements for 38AH044-084 Optional Single-Circuit Units and 38AH124,134 Modular Units (Dual Circuit) — 50 Hz TOTAL LINEAR LENGTH OF INTERCONNECTING PIPE — FT (M) UNIT 15-20 20-50 50-75 75-100 100-150 150-200 38AH (4.6-6.1) (6.1-15.2) (15.2-22.9) (22.9-30.5) (30.5-45.7) (45.7-61.0) L S L S L S L S LSLS 7 1 7 1 1 1 1 5 1 5 3 5 044 ⁄8 2 ⁄8 ⁄8 2 ⁄8 1 ⁄8 2 ⁄8 1 ⁄8 2 ⁄8*1⁄8 2⁄8*1⁄8 2⁄8* 7 1 1 1 1 5 1 5 1 5 3 1 054 ⁄8 2 ⁄8 1 ⁄8 2 ⁄8 1 ⁄8 2 ⁄8*1⁄8 2⁄8*1⁄8 2⁄8*1⁄8 3⁄8* 06
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LEGEND TXV — Thermostatic Expansion Valve TYP — Typical NOTE: Lower split first on, last off. Fig. 14 — Typical Piping Connections for Face Split Coils for 38AH044-084 Dual-Circuit and 38AH094-134 Units LEGEND TXV — Thermostatic Expansion Valve TYP — Typical NOTE: Lower split first on, last off. Fig. 15 — Typical Piping Connections for Face Split Coils for 38AH044-084 Optional Single-Circuit Units 20
