508 01 1603 01
Specifications subject to change without notice.
17
Fig. 8 — Refrigerant and Chilled Water Piping Access Holes
Fig. 9 — Face-Split Coil Suction and Liquid Line Piping (Typical)
4
3
2
1
7
6
5
A
B
C
UNIT
USE HOLE
NUMBERS
FIELD-FABRICATED HOLE DIAMATERS
in. (mm)
FIELD-FABRICATED HOLE POSITION DIMENSIONS
in. (mm)
No. 5
No. 6
No. 7
A
B
C
FAS072, 091
FHS072, 091
1, 3
—
—
—
—
—
—
FAS120, 150, 180
FHS120
1, 2, 3, 4
—
—
—
—
—
—
FHS180
3*, 5, 6, 7
1
1
/
8
(28.6)
1
1
/
8
(28.6)
1
3
/
4
(44.5)
3.25 (82.6)
6.125 (155.6)
10.38 (263.7)
FAS240, 300, 336
1, 2, 3, 4
—
—
—
—
—
—
FHS240
3*, 5, 6, 7
1
1
/
8
(28.6)
1
1
/
8
(28.6)
1
3
/
4
(44.5)
3.25 (82.6)
6.125 (155.6)
10.38 (263.7)
*Must be enlarged from 1
1
/
8
-in. (28.6mm) to 1
3
/
4
-in. (44.5mm)
NOTE: Access hole knockouts 1-4 are factory-supplied.
LEGEND:
TXV – Thermostatic Expansion Valve
NOTE: Component location arrangemetshown for field installation of
sight glasses, solenoid valves, filter driers, and TXV sensing bulbs.
The TXVs and equilizer lines are factory installed.
UPPER
SPLIT
AIRFLOW
LOWER
SPLIT
AIRFLOW
15 DIAMS
MIN
10
DIAMS
8 DIAMS
MIN
TXV
SENSING
BULB
EQUALIZER LINE
SIGHT
GLASS
TXV
SOLENOID
VALVE
FILTER
DRIER
TXV
SENSING
BULB
TXV
8 DIAMS
MIN
15 DIAMS
MIN
10
DIAMS
INDOOR
COIL
EQUALIZER
LINE
Single Circuit Coil Piping Configuration - FAS/FHS072/091
For single compressor condensing units.
Dual Circuit Coil Piping Configuration - FAS120-336, FHS120-240
For single compressor condensing units
UPPER
SPLIT
AIRFLOW
15 DIAMS
MIN
10
DIAMS
8 DIAMS
MIN
TXV
SENSING
BULB
EQUALIZER LINE
SIGHT
GLASS
TXV
SOLENOID
VALVE
FILTER
DRIER
