18
* See Fig. 7 for access hole location by number.
† Fittings are listed in order from header or tee stub connection out to
access hole in corner support post.
Fig. 8 — Face-Split Coil and Liquid Line Piping (Typical)
40RUQ*16
3
Suction
Lower
1-1/8 Nipple, 3 L
1-1/8 Long Radius Elbow
5
Suction
Lower
5/8 Nipple, 2-7/8 L
5/8 45° Elbow
5/8
Nipple, 1-5/8
L
5/8
Long Radius Elbow
6
Liquid
Upper
5/8 Nipple, 2-7/8 L
5/8 45° Elbow
5/8
Nipple, 4-1/4
L
5/8
Long Radius Elbow
7
Suction
Upper
1-1/8 Nipple, 5 L
1-1/8 45° Elbow
1-1/8
Nipple, 8-3/4
L
1-1/8
Long Radius Elbow
40RUS*14
40RUS*16
4
Supply
Lower
1-3/8 Long Radius Elbow
1-3/8
Nipple, 3-3/4
L
1-3/8
Long Radius Elbow
5
Return
Lower
1-3/8 Long Radius Elbow
1-3/8
Nipple, 3-3/8
L
1-3/8
Long Radius Elbow
6
Return
Upper
1-3/8 Long Radius Elbow
1-3/8
Nipple, 7
L
1-3/8
Long Radius Elbow
7
Supply
Upper
1-3/8 Long Radius Elbow
1-3/8
Nipple, 11-3/4
L
1-3/8
Long Radius Elbow
Table 11 — Fitting Requirements (cont)
UNIT
ACCESS HOLE NO.*
CONNECTION TYPE
CIRCUIT
FITTING REQUIRED†
(IN.)
LEGEND
TXV
— Thermostatic Expansion Valve
NOTE: Component location arrangement shown for field installation of sight glasses, solenoid valves, filter driers, and TXV sensing bulbs.
The TXVs and equalizer 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 - RU*07, 08
For single compressor condensing units.
Dual Circuit Coil Piping Configuration - RU*12-16
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
