Liebert DS User Manual
Piping Schematics
103
Figure 78 Primary connection locations—upflow, air-cooled, 53-77kW (15-22 ton), scroll compressor
models
Point
Description
X
inches (mm)
Y
inches (mm)
Connection Size / Opening
inches (mm)
R1
Refrigerant Access (Top)
83-5/8 (2124)
2 (51)
12 x 4 (305 x 102)
R2
Refrigerant Access (Bottom)
82-3/4 (2102)
14-3/4 (374)
12-3/16 x 4 (310 x 102)
53kW (15 tons)/70 & 77kW (20 & 22 ton)
L1
Liquid Line System 1
94-11/16 (2405)
16-3/4 (425)
1/2 / 5/8 Cu Sweat
L2
Liquid Line System 2
91-7/8 (2334)
16-3/4 (425)
1/2 / 5/8 Cu Sweat
G1
Hot Gas Discharge 1
88-3/4 (2254)
16-3/8 (416)
7/8 / 1-1/8 Cu Sweat
G2
Hot Gas Discharge 2
85-9/16 (2173)
16-3/8 (416)
7/8 / 1-1/8 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)
79-5/16 (2015)
11-7/8 (302)
1/2 Cu Sweat
HUM
Humidifier Supply Line
79-5/16 (2015)
9-7/8 (251)
1/4 Cu Sweat
ECS** Econ-O-Coil Supply
78-5/8 (1998)
7-7/8 (200)
2-1/8 Cu Sweat
ECR** Econ-O-Coil Return
78-5/8 (1998)
4-5/8 (117)
2-1/8 Cu Sweat
E1
Electrical Connection (High Voltage)
75-3/8 (1915)
30 (762)
2-1/2
E2
Electrical Connection (High Voltage)
69-7/8 (1775)
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)
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)
Factory Location
Front
CGD*
CGD*
Top View
Left Side Section View
Front Section View
(Left Front Panel Not Shown)
NOTE
1. Drawing not to scale.
2. Tolerance on all piping dimensions
is
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 DPN001191 for
blower outlet and deck dimensional data.
gas and liquid line connection points.
4. See submittal page DPN001191 for
blower outlet and deck dimensional data.
4" (102mm)
4"
(102mm)
6"
(152mm)
3-7/8"
(98mm)
17-3/16"
(437mm)
Blower
Outlet
Blower
Outlet
DPN001213
Rev. 1
Rev. 1
35"
(889mm)
17-1/16"
(433mm)
98"
(2489mm)
Lv1
LV2
LV3
LV2
LV3
X
Y
O
14-1/4"
(362mm)
15-7/8"
(403mm)
12-13/16"
(325mm)
All dimensions from
rear corner of unit
including panels
rear corner of unit
including panels
4
4
3
3
3