Liebert Precision Cooling System DS - Manual (Page 103)

Piping Schematics
93
Figure 68 Primary connection locations—downflow water/glycol/GLYCOOL 28-42kW (8-12 ton), all
compressor models
Point Description
X
inches (mm)
Y
inches (mm)
Connection Size / Opening
inches (mm)
W Water/Glycol/GLYCOOL Access 79-15/16 (2030) 9-1/16 (230) 3-1/2 x 8 (89 x 203)
WS Water/Glycol/GLYCOOL Supply 82-15/16 (2107) 10-15/16 (278) 1-5/8 Cu Sweat
WR Water/Glycol/GLYCOOL Return 82-15/16 (2107) 14-1/16 (357) 1-5/8 Cu Sweat
CD
Condensate Drain * 46 (1168) 29-1/2 (749) 3/4 FPT
W/ Optional Pump 46 (1168) 29-1/2 (749) 1/2 Cu Sweat
HUM Humidifier Supply Line 53-1/2 (1359) 29 (737) 1/4 Cu Sweat
ECS Econ-O-Coil Supply ** 54-7/8 (1394) 22-9/16 (573) 1-5/8 Cu Sweat
ECR Econ-O-Coil Return ** 49-13/16 (1265) 28-1/2 (724) 1-5/8 Cu Sweat
HS Hot Water Reheat Supply Consult Factory
HR Hot Water Reheat Return Consult Factory
E1 Electrical Connection (High Volt) 55-1/2 (1410) 31-1/4 (794) 2-1/2
E2 Electrical Connection (High Volt) 52-7/16 (1332) 31-1/4 (794) 2-1/2
LV1 Electrical Connection (Low Volt) 2-1/4 (57) 27 (686) 7/8
LV2 Electrical Connection (Low Volt) 2-1/4 (57) 29 (737) 7/8
LV3 Electrical Connection (Low Volt) 2-1/4 (57) 31 (787) 7/8
B Blower Outlet 21-15/16 (557) 18-1/16 (459) 18-3/4 x 16-1/16 (476 x 408)
* Field-pitch condensate drain line a minimum of 1/8" (3.2mm) per foot (305mm). 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)
8" (203mm)
3-1/2"
(89mm)
Blower
Outlet
Section A-A
Front View
16-1/16"
(408mm)
B
A A
X
Y
O
35"
(889mm)
All dimensions
from rear corner
of unit including
panels
Tolerance on all
piping dimensions
is ± 1/2" (13mm)
86"
(2184mm)
Front of Unit
Note: Drawing not to scale
DPN000900
Rev. 2
W
WS
WR
LV3
LV2
LV1
ECS
HUM
CD
ECR
E1 E2