Liebert Precision Cooling System DS - 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