Carrier 38AQS008 Rig and Mount the Unit, Complete Refrigerant Piping Connec, Physical Data SI

Table 1A — Physical Data (English)

UNIT 38AQS008	60 Hz		50 Hz
OPERATING WEIGHT (lb)
Aluminum Coils (Standard)	540		594
Copper Coils (Optional)	608		662
RIGGING WEIGHT (lb)
Aluminum Coils (Standard)	590		644
Copper Coils (Optional)	658		712
REFRIGERANT*	R-22
COMPRESSOR	Reciprocating, Semi-Hermetic
Quantity...Type	1...06DA818		1...06DA824
Quantity Cylinders	4		6
Speed (rpm)	1750		1460
Oil Charge (oz) (ea)	88		128
OUTDOOR FAN	Propeller; Direct Drive
Quantity...rpm	1...1100		1...960
Diameter (in.)	26		26
Motor Hp (NEMA)	3⁄4		1⁄3
Nominal Airflow (cfm)	6500		6100
OUTDOOR COIL	Enhanced Copper Tubes,
Face Area (sq ft)	Aluminum Lanced Fins
	18.0
Storage Capacity (lb)†	16.56
Fins/in.	17.0
Rows (No.)		2
CONNECTIONS (Sweat)
Suction (in.)		11⁄8
Liquid (in.)		1⁄2
CONTROLS
Pressurestat Settings (psig)
High Cutout	426 ￿ 7
Cut-in	320 ￿ 20
Low Cutout	7 ￿ 3
Cut-in	22 ￿ 5
Defrost Thermostat
Initiate Defrost (F)		28
Terminates Defrost (F)		65

LEGEND

NEMA — National Electrical Manufacturing Association (U.S.A.)

*Unit is factory supplied with holding charge only.

†Storage capacity of coil with coil 80% full of liquid R-22 at 120 F.

CONSIDER SYSTEM REQUIREMENTS

•Consult local building codes and NEC (U.S.A.) for spe- cial installation requirements.

•Allow sufficient space for airflow clearance, wiring, re- frigerant piping, and servicing unit. See Fig. 2.

•Locate unit so that outdoor unit airflow is unrestricted on all sides and above. Refer to Fig. 2.

•Unit may be mounted on a level pad directly on base rails or mounted on raised pads at support points. See Fig. 2 for weight distribution based on recommended support points.

•Provide for condensate drainage and defrost water dis- posal beneath unit.

•Areas with high snowfall may need elevated mounting for adequate airflow.

NOTE: If vibration isolators are required for a particular in- stallation, use corner weight information in Fig. 2 to make proper selection.

Step 2 — Rig and Mount the Unit

Be sure unit panels are securely in place prior to rigging.

RIGGING — These units are designed for overhead rig- ging. Refer to rigging label for preferred rigging method. Spreader bars are not required if top crating is left on unit. All panels must be in place when rigging. (See Fig. 3.) As

Table 1B — Physical Data (SI)

UNIT 38AQS008	60 Hz		50 Hz
OPERATING WEIGHT (kg)
Aluminum Coils (Standard)	245		270
Copper Coils (Optional)	276		299
RIGGING WEIGHT (kg)
Aluminum Coils (Standard)	268		292
Copper Coils (Optional)	298		323
REFRIGERANT*	R-22
COMPRESSOR	Reciprocating. Semi-Hermetic
Quantity...Type	1...06DA818		1...06DA824
Quantity Cylinders	4		6
Speed (r/s)	29.2		24.2
Oil Charge (L) (ea)	2.60		3.78
OUTDOOR FAN	Propeller; Direct Drive
Quantity...r/s	1...18.3		1...16.0
Diameter (mm)	660		660
Motor Hp (NEMA)	3⁄4		1⁄3
Nominal Airflow (L/s)	3070		2900
OUTDOOR COIL	Enhanced Copper Tubes,
Face Area (m2)	Aluminum Lanced Fins
	1.67
Storage Capacity (kg)†		7.5
Fins/m		669
Rows (No.)		2
CONNECTIONS (Sweat)**
Suction (in.)		11⁄8
Liquid (in.)		1⁄2
CONTROLS
Pressurestat Settings (kPa)
High Cutout	2937 ￿ 48
Cut-in	2206 ￿ 138
Low Cutout	48 ￿ 20
Cut-in	151 ￿ 34
Defrost Thermostat
Initiate Defrost (C)	−2.2
Terminates Defrost (C)		18.3

LEGEND

NEMA — National Electrical Manufacturing Association (U.S.A.) *Unit is factory supplied with holding charge only.

†Storage capacity of coil with coil 80% full of liquid R-22 at 49 C. **All pipe sizes are OD inches; equivalent sizes in millimeters follow:

in. mm

1⁄2	12.7
11⁄8	28.6

further protection for coil faces, plywood sheets may be placed against sides of unit, behind cables. Run cables to a central suspension point so that angle from the horizontal plane is not less than 45 degrees. Raise and set unit down carefully.

If it is necessary to roll unit into position, mount unit on rails, using a minimum of 3 rollers. Apply force to rails, not unit. If unit is to be skidded into position, place it on a large pad and drag it by the pad. Do not apply any force to unit.

Raise from above to lift unit from rails or pad when unit is in final position.

After unit is in position, remove all shipping wrapping and top crating.

MOUNTING — The unit must be elevated to ensure drain- age from basepan during sub-freezing conditions and to pre- vent or limit blockage of outdoor coil during snowfall. Con- sideration should be given to specific geographical areas when determining height of unit elevation.

COMPRESSOR MOUNTING — As shipped, compressors are held down by 4 bolts. After unit is installed, loosen each bolt until the snubber washer can be moved with finger pres- sure. See Fig. 4.

Step 3 — Complete Refrigerant Piping Connec-

tions — Suction connection is sweat with plastic cap; liq- uid connection is sweat with plastic cap. Refer to Table 2 for the proper line sizes. Follow standard piping practices.

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