Fig. 1 Ð 38AKS Units
NOTES:
1.Use 2 in. OD (50 mm) pipe or hooks in lifting holes.
2.Rig with 4 cables and spread with 2 ``D'' long and two ``A'' long 2 x 4's in. (50 x 100 mm) or equal.
3.Run the rigging cables to a central suspension point so that the angle from the horizontal is not less than 45 degrees.
All panels must be in place when rigging.
| MAX SHIP. | LIFTING | CENTER OF GRAVITY |
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UNIT | HOLES |
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38AKS | WT |
| ``A'' | ``B'' | ``C'' |
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| Lb | Kg | in. |
| mm | in. | mm | in. | mm | in. | mm |
028 | 1924 | 872 | 81 |
| 2057 | 43.0 | 1092 | 28.0 | 711 | 73.5 | 1867 |
034 | 2115 | 960 | 81 |
| 2057 | 43.0 | 1092 | 28.0 | 711 | 73.5 | 1867 |
044 | 2797 | 1207 | 99 |
| 2515 | 49.0 | 1245 | 30.5 | 775 | 73.5 | 1867 |
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Fig. 2 Ð Rigging with Spreader Bars
(Field Supplied)
Placing Unit Ð There must be 4 ft (1220 mm) for ser- vice on all sides of unit, and a minimum of 8 ft (2440 mm) clear air space above unit. For multiple units, allow 8 ft (2440 mm) separation between units for air¯ow and service.
Mounting Unit Ð When unit is in proper location, use of mounting holes in base rails is recommended for securing unit to supporting structure or for mounting unit on vibra- tion isolators, if required. Fasteners for mounting unit are ®eld supplied. Be sure to mount unit level to ensure proper oil return to compressors.
Compressor Mounting Ð As shipped, compressor is held down by 4 bolts. After unit is installed loosen each bolt using nut indicated in Fig. 3 until ¯atwasher (3¤8 in. [9.5 mm]) can be moved with ®nger pressure.
INSTALLATION
Refrigerant Piping Connections Ð Line sizes de- pend on length of piping required between condensing unit and evaporator. See Table 2A or 2B. It is important to con- sider liquid lift and compressor oil return. Refer to Part 3 of Carrier System Design Manual for line sizing information, and Fig. 4 for recommended piping details.
Liquid Line Solenoid Drop Control Ð The factory- supplied solenoid valve must be installed at the indoor unit (fan coil) per Fig. 5, and wired per wiring label found on unit. The solenoid assures that system refrigerant is in the
Failure to properly install liquid line solenoid at the in- door unit as described, without Carrier authorization, may VOID warranty.
Filter Drier and Moisture Indicator Ð Every unit should have a ®lter drier and a sight glass (moisture indi- cator) ®eld installed. Select the ®lter drier for maximum unit capacity and minimum pressure drop. Figure 5 shows rec- ommended locations of ®lter drier(s) and sight glass. Com- plete the refrigerant piping from the evaporator to the con- denser before opening the liquid and suction lines at the condensing unit. One ®lter drier may be installed at location A in Fig. 5, or 2 ®lter driers may be installed at locations B.
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