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Piping Schematics
100
Figure 75 Primary connection locations—upflow, air-Cooled, 28-42kW (8-12 ton), semi-hermetic
compressor models
Point Description
X
inches (mm)
Y
inches (mm)
Connection Size / Opening
inches (mm)
R1 Refrigerant Access (Top) 60-5/8 (1539) 2-13/16 (71) 10-1/8 x 4-1/8 (257 x 105)
R2 Refrigerant Access (Bottom) 63 (1600) 13-13/16 (351) 16-7/16 x 4 (418 x 102)
L1 Liquid Line System 1 79-3/16 (2011) 16-3/4 (425) 1/2 Cu Sweat
L2 Liquid Line System 2 76-1/2 (1943) 16-3/4 (425) 1/2 Cu Sweat
G1 Hot Gas Discharge 1 73-7/8 (1876) 16-5/8 (422) 5/8 Cu Sweat
G2 Hot Gas Discharge 2 70-1/8 (1780) 16-5/8 (422) 5/8 Cu Sweat
R3 Refrigerant Access (Side) - - 6 x 17-3/16 (152 x 437)
CGD* Condensate Gravity Drain - - 3/4 FPT
CPD Condensate Pump Discharge (Opt) 56-1/4 (1429) 11-1/8 (283) 1/2 Cu Sweat
HUM Humidifier Supply Line 56-1/4 (1429) 9-1/8 (233) 1/4 Cu Sweat
ECS** Econ-O-Coil Supply 56 (1423) 7-5/16 (186) 1-5/8 Cu Sweat
ECR** Econ-O-Coil Return 56 (1423) 4-1/2 (114) 1-5/8 Cu Sweat
E1 Electrical Connection (High Voltage) 52-3/8 (1330) 30 (762) 2-1/2
E2 Electrical Connection (High Voltage) 46-7/8 (1191) 30 (762) 2-1/2
LV1 Electrical Connection (Low Voltage) 19-1/2 (495) 29-1/16 (738) 7/8
LV2 Electrical Connection (Low Voltage) 19-1/2 (495) 30-1/2 (775) 7/8
LV3 Electrical Connection (Low Voltage) 19-1/2 (495) 31-15/16 (811) 7/8
* Field-pitch condensate drain line a minimum of 1/8" (3.2 mm) per foot (305 mm). All units contain a factory installed condensate trap. Do
not trap external to the unit. Drain line may contain boiling water. Select appropriate drain system materials. The drain line must comply with
all local codes.
** Supplied on Dual-Cool systems only (4-pipe system)
TOP VIEW
O
X
Y
E1 E2
HUM
CPD
ECR
ECS
BLOWER
OUTLET
L1
L2
G1
G2
R2
L1 L2
G1
G2
R3
CGD*
R1
3.
3.
CGD*
3.
4.
3-7/8"
(98mm)
14-1/4"
(362mm)
15-7/8"
(403mm)
LEFT SIDE SECTION VIEW
17-3/16"
(437mm)
6"
(152mm)
17-1/16"
(434mm)
FACTORY LOCATION
FRONT SECTION VIEW
(LEFT FRONT PANEL NOT SHOWN)
FRONT
73"
(1854mm)
LV1
LV2
LV3
11-13/16"
(300mm)
4"
(102mm)
35"
(889mm)
NOTES:
1. Drawing not to scale.
2. Tolerance on all piping dimensions
is ±1/2" (13mm).
3. Field-routed alternatives for refrigerant
gas and liquid line connection points.
4. See submittal page DPN001120 for
blower outlet and deck dimensional data.
4-1/8" (105mm)
10-1/8"
(257mm)
All dimensions from
rear corner of unit
including panels
DPN001119
Rev. 1
3
3
3