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Table 1 — Physical Data
UNIT 575A 090
OPERATING WEIGHT (lb)
Aluminum Coils (Standard) 540
Copper Coils (Optional) 608
RIGGING WEIGHT (lb)
Aluminum Coils (Standard) 590
Copper Coils (Optional) 658
REFRIGERANT* R-22
COMPRESSOR Reciprocating, Semi-Hermetic
Quantity...Type 1...06DA818
Quantity Cylinders 4
Speed (rpm) 1750
Oil Charge (oz) (ea) 88
OUTDOOR FAN Propeller; Direct Drive
Quantity...rpm 1...1100
Diameter (in.) 26
Motor Hp (NEMA)
3
⁄
4
Nominal Airflow (cfm) 6500
OUTDOOR COIL Enhanced Copper Tubes,
Aluminum Lanced Fins
Face Area (sq ft) 18.0
Storage Capacity (lb)† 16.56
Fins/in. 17.0
Rows (No.) 2
CONNECTIONS (Sweat)
Suction (in.) 1
1
⁄
8
Liquid (in.)
1
⁄
2
CONTROLS
Pressurestat Settings (psig)
High Cutout 426 Ϯ 7
Cut-in 320 Ϯ 20
Low Cutout 7 Ϯ 3
Cut-in 22 Ϯ 5
Defrost Thermostat
Initiate Defrost (F) 28
Terminates Defrost (F) 65
LEGEND
NEMA — National Electrical Manufacturing Association
*Unit is factory supplied with holding charge only.
†Storage capacity of coil with coil 80% full of liquid R-22 at 120 F.
II. RIG AND MOUNT THE UNIT
CAUTION:
Be sure unit panels are securely in place
prior to rigging.
A. Rigging
The unit is designed for overhead rigging. Refer to rigging
label for preferred rigging method. Spreader bars are not re-
quired if top crating is left on unit. All panels must be in place
when rigging. (See Fig. 3.) As 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.
B. Mounting
The unit must be elevated to ensure drainage from basepan
during sub-freezing conditions and to prevent or limit block-
age of outdoor coil during snowfall. Consideration should be
given to specific geographical areas when determining height
of unit elevation.
C. 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 pressure. See Fig. 4.
UNIT
MAX WEIGHT
ABC
w/Al
Coil
w/Cu
Coil
Lb Kg Lb Kg in. mm in. mm in. mm
575A090 590 268 658 298 45.0 1143 38.5 989 43.5 1105
Al — Aluminum-Fin
Cu — Copper-Fin
Fig. 3 — Rigging Label
Fig. 4 — Compressor Mounting
—3—