Product Data. Features/Benefits. 38AH Commercial Air-Cooled Condensing Units 50/60 Hz. 20 to 130 Nominal Tons (63 to 390 Nominal kw)

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1 Product Data 38AH Commercial Air-Cooled Condensing Units 50/60 Hz 20 to 130 Nominal Tons (63 to 390 Nominal kw) a ef 38AH These dependable split systems match Carrier s 40RM or 39 Series indoor-air handlers with the versatile outdoor 38AH condensing units for a wide selection of commercial cooling solutions. Up to 4 compressors and 2 independent refrigerant circuits Condensing unit can supply one or 2 air handlers EERs up to 10.9 Variable air volume units operate as low as 8% of nominal capacity without the use of hot gas bypass Constant volume units operate as low as 16% of nominal capacity (standard) or 8% of nominal capacity (with accessory unloader) Weatherized steel cabinet Protection against high discharge and low suction refrigerant pressure, and low oil pressure Crankcase heaters Features/Benefits The 38AH condensing unit offers the utmost in system configuration and control adaptability. Its premiumquality standard components ensure durable, efficient, and reliable operation. The 38AH units offer high unit EERs (Energy Efficiency Ratios). These units provide greater efficiency than similar units in the marketplace, which translates into year-round operating savings. Latest safety standards for 38AH units are assured through UL and UL, Canada, approvals. 38AH Copyright 2009 Carrier Corporation Form 38AH-10PD

2 Model number nomenclature * a Al Aluminum Cu Copper NFD Non-Fused Disconnect VAV Variable Air Volume Quality Assurance Certified to ISO 9001:2000 *Packaging options 2 and 4 are not available on 38AH units. 3

3 Capacity ratings SIZE 38AH NOMINAL TONS (60 Hz) 38AH RATINGS NOMINAL TONS (50 Hz) EER* (60 Hz) EER* (50 Hz) IPLV (60 Hz) IPLV (50 Hz) Ratings are based on 45 F (7.2 C) suction temperature and 95 F (35 C) outside-air temperature, and include suction line losses. 2. Units are rated in accordance with ARI standard AH CONDENSING SST Saturated Suction Temperature 38AH RATINGS 60 Hz SYSTEM 40RM AIR HANDLER/ INDOOR COIL Net Capacity EER IPLV (Btuh) 016H 222, H 240, H 250, H 268, H 282, H 290, CONDENSING ONLY* Net Capacity EER (Btuh) IPLV 251, , H 324, , H 332, *Condensing unit only ratings are at 45 F SST and 95 F entering-air temperature. 1. Unit performance is rated in accordance with ARI Standard System performance is certified in accordance with ARI Standard 340/360, where applicable. 38AH CONDENSING RM AIR-HANDLING 38AH RATINGS 50 Hz AIR-HANDLING AIRFLOW SYSTEM GROSS (Standard 3-Row Coil) SYSTEM GROSS (High-Capacity 4-Row Coil) CONDENSING ONLY GROSS L/s Cfm kw* Btuh kw* Btuh kw** Btuh EER IPLV , , , , , , , , , , , , , , , , , , , , , , , , , , , db Dry Bulb wb Wet Bulb SST Saturated Suction Temperature *System gross capacities are rated according to indoor unit airflow, 35 C air temperature entering condenser, and 20 C wb air temperature entering evaporator. System gross capacities are rated according to indoor unit airflow, 95 F air temperature entering condenser, and 67 F wb air temperature entering evaporator. **Condensing unit gross capacity based on 36 C air temperature entering condenser and 8 C SST. Condensing unit gross capacity based on 95 F air temperature entering condenser and 45 F SST. 1. Unit performance is rated in accordance with ARI Standard System performance is certified in accordance with ARI Standard 340/360, where applicable. 4

4 Physical data (cont) Cu-Al Copper Tubes with Aluminum Fins Cu-Cu Copper Tubes with Copper Fins (Optional) ODF Outside Diameter, Female ODM Outside Diameter, Male VAV Variable Air Volume *Circuit A compressor is lead. Unloading steps available only on units ordered with the VAV factoryinstalled option or on constant-volume units with additional fieldinstalled accessory unloader. **Circuit A compressor is lead on standard units; circuit B compressor is lead on optional single-circuit units. 38AH S, 60 Hz ENGLISH (cont) 38AH NOMINAL (tons) OPERATING WEIGHT WITH REFRIGERANT (lb) (approx) Cu-Al Coil (standard) Cu-Cu Coil (optional) SHIPPING WEIGHT WITH COIL PROTECTION ONLY (lb) (approx) Cu-Al Coil (standard) Cu-Cu Coil (optional) REFRIGERANT, TYPE R-22 Shipping Charge (lb) Operating Charge, Typical (lb) DUAL-CKT COMPRESSOR Type...Rpm Reciprocating Semi-Hermetic (Quantity) Cylinder Ckt* (4) A (4) B (4) A (6) B (6) A (6) B (6) A (6) B (6) A (6) B Model No. 06E Oil Charge (pt) Capacity Control Steps (%) OPTIONAL SINGLE-CKT COMPRESSOR Type...Rpm Reciprocating Semi-Hermetic (Quantity) Cylinder Ckt** (4) A1 (4) A2 (6) A1 (4) A2 (6) A1 (6) A2 (6) A1 (6) A2 (6) A1 (6) A2 Model No. 06E Oil Charge (pt) Capacity Control Steps (%) CONDENSER FANS (4 Blade) (Quantity) Dia (in.) (4) 30 (6) 30 Nominal Hp Airflow (cfm) 35,000 52,000 51,000 Speed (rpm) Total Power (kw) CONDENSER COIL Enhanced Copper Tubes, Lanced Aluminum Fins Rows...Fins per in Face Area (sq ft) Storage Capacity (lb per circuit) at 120 F FAN CYCLING CONTROLS Close (psig) 255 ± 10 Open (psig) 160 ± 10 CONNECTIONS Suction, ODF (in.)*** 2 1 / 8 Liquid, ODF (in.)*** 7 / 8 Hot Gas Bypass, ODF (in.) 5/ 8 On all units, fans no. 3 and 4; also on 38AH074, 084 (dualcircuit units only) and 38AH094, 104, fans no. 5 and 6. ***For optional single-circuit units, suction ODF is 2 5 / 8 in. and liquid ODF is 1 1 / 8 inches. Single circuit units have a single suction line and single liquid line. No field modification is required. 1. Certified dimensional drawings available on request. 2. Refer to Unloading Sequences tables, pages , for additional system capacity step data. 6

5 Dimensions (cont) 38AH S (See Page 22 for Corner Weights) FIELD POWER SUPPLY CONNECTIONS (SEE NOTES 4 AND 5 AND CONNECTIONS TABLE) DIMENSIONS 38AH DIMENSION Y ft-in. [mm] DIMENSION X ft-in. [mm] / 4 [984] 4-1 / 2 [1232] 044C /8 [994] 4-9 /16 [1234] / 2 [978] 4-3 / 16 [1224] 054C 3-3 [991] 4-3 / 8 [1229] /2 [978] 4-1 /2 [1232] 064C / 16 [995] 4-5 / 8 [1235] 1. The approximate operating weight of the unit is: 38AH lb (1480 kg) 38AH044C 3547 lb (1609 kg) 38AH lb (1501 kg) 38AH054C 3597 lb (1632 kg) 38AH lb (1617 kg) 38AH064C 3998 lb (1813 kg) 2. Unit must have clearances for airflow as follows: Top Do not restrict in any way. Ends 5 ft [1524 mm] Sides 6 ft [1829 mm] 3. Mounting holes may be used to mount unit to concrete pad. They are not recommended for mounting unit to spring isolators. If spring isolators are used, a perimeter support channel between the unit and the isolators is recommended. 4. Two 2 in. (51 mm) dia holes are recommended for parallel conductors on 044 (230-v) units and on 044 and 054 (208/230-v) units. 5. A 3 5 / 8 in. (86 mm) hole is recommended for single entry power on 064 (208/230-v) units. 6. C in the package number indicates copper coils. SUCTION AND LIQUID LINES DESCRIPTION DUAL CIRCUIT, ft-in. [mm] SINGLE CIRCUIT, ft-in. [mm] Suction Connection(s) / 8 [54] / 8 [67] Liquid Connection(s) 0-7 /8 [22] / 8 [29] Suction C 2-11 / 16 [627] / 16 [567] Liquid D / 16 [561] / 16 [567] Suction (Ckt A) / 16 [503] 2-5 / 8 [626] Suction (Ckt B) 2-5 / 8 [626] Liquid (Ckt A) / 4 [756] / 8 [892] Liquid (Ckt B) / 8 [879] MTG Mounting SAE Society of Automotive Engineers 38AH SIZE V-Ph-Hz DIAMETER, in. [mm] QTY / 8 [92] 1 208/ / 8 [92] 1 346/ /3/ / 2 [63.5] 1 208/ / 8 [92] / / 2 [63.5] 1 208/ / 2 [63.5] / / 8 [92] a