Liebert Precision Cooling System DS User Manual
Page 108
Piping Schematics
98
Figure 73 Primary connection locations—downflow, air-cooled, 105kW (30 ton), all compressor models
Point
Description)
X
inches (mm)
Y
inches (mm)
Connection Size / Opening
inches (mm)
W
Water/Glycol/GLYCOOL Access
125-15/16 (3199)
9 (229)
3-1/2 x 8 (89 x 203)
WS
Water/Glycol/GLYCOOL Supply
127-7/8 (3248)
10-1/16 (256)
2-1/8 Cu Sweat
WR
Water/Glycol/GLYCOOL Return
127-7/8 (3248)
13-1/4 (337)
2-1/8 Cu Sweat
CD
Condensate Drain *
83-13/16 (2129)
30 (762)
3/4 FPT
W/ Optional Pump
83-13/16 (2129)
30 (762)
1/2 Cu Sweat
HUM
Humidifier Supply Line
102-3/4 (2610)
31-3/4 (806)
1/4 Cu Sweat
ECS
Econ-O-Coil Supply
101-7/8 (2588)
29 (737)
2-5/8 Cu Sweat
ECR
Econ-O-Coil Return
94-9/16 (2402)
29 (737)
2-5/8 Cu Sweat
HS
Hot Water Reheat Supply
Consult Factory
HR
Hot Water Reheat Return
Consult Factory
E1
Electrical Connection (High Volt)
98-1/4 (2496)
30 (762)
2-1/2
E2
Electrical Connection (High Volt)
88-7/16 (2246)
30 (762)
2-1/2
LV1
Electrical Connection (Low Volt)
2 (51)
27-1/2 (796)
7/8
LV2
Electrical Connection (Low Volt)
2 (51)
30-1/4 (768)
7/8
LV3
Electrical Connection (Low Volt)
2 (51)
32 (813)
7/8
B1
Blower Outlet
28-1/4 (718)
18 (457)
14-1/2 x 15-7/8 (368 x 403)
B2
Blower Outlet
52 (1321)
18 (457)
14-1/2 x 15-7/8 (368 x 403)
B3
Blower Outlet
75-11/16 (1922)
18 (457)
14-1/2 x 15-7/8 (368 x 403)
* 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)
35"
(889mm)
All dimensions
from rear corner
of unit including
panels
3-1/2"
(89mm)
Section A-A
Front View
A
A
X
Y
O
Tolerance on all
piping dimensions
is ± 1/2" (13mm)
131"
(3327mm)
Front of Unit
Note: Drawing not to scale
DPN001015
Rev. 2
WS
W
LV3
LV2
LV1
ECS
HUM
CD
ECR
E1 E2
B1
Blower
Outlet
Blower
Outlet
Blower
Outlet
B2
B3
8" (203mm)
15-7/8"
(403mm)
WR
14-1/2"
(368mm)
Typ