Liebert Precision Cooling System DS - Manual (Page 106)

Piping Schematics
96
Figure 71 Primary connection locations—downflow, water/glycol/GLYCOO,L 53-77kW (15-22 ton), all
compressor models
Point) Description)
X
inches (mm)
Y
inches (mm)
Connection Size / Opening
inches (mm)
W Water/Glycol/GLYCOOL Access 103 (2616) 9 (229) 3-1/2 x 8 (89 x 203)
WS Water/Glycol/GLYCOOL Supply 104-3/4 (2661) 11 (279) 2-1/8 Cu Sweat
WR Water/Glycol/GLYCOOL Return 104-3/4 (2661) 15 (381) 2-1/8 Cu Sweat
CD
Condensate Drain * 69-1/4 (1759) 30 (762) 3/4 FPT
W/ Optional Pump 69-1/4 (1759) 30 (762) 1/2 Cu Sweat
HUM Humidifier Supply Line 76-1/2 (1943) 29 (736) 1/4 Cu Sweat
ECS** Econ-O-Coil Supply 78-5/8 (1997) 22-1/4 (565) 2-1/8 Cu Sweat
ECR** Econ-O-Coil Return 72 (1829) 29 (737) 2-1/8 Cu Sweat
HS Hot Water Reheat Supply Consult Factory
HR Hot Water Reheat Return Consult Factory
E1 Electrical Connection (High Volt) 78-1/2 (1994) 31-1/8 (790) 2-1/2
E2 Electrical Connection (High Volt) 75-3/8 (1915) 31-1/8 (790) 2-1/2
LV1 Electrical Connection (Low Volt) 1-7/8 (48) 28-1/2 (724) 7/8
LV2 Electrical Connection (Low Volt) 1-7/8 (48) 30-1/4 (768) 7/8
LV3 Electrical Connection (Low Volt) 1-7/8 (48) 32 (813) 7/8
B1
Blower Outlet (15 x 15) 23-1/8 (587) 18-1/16 (459) 18-3/4 x 16-1/16 (476 x 408)
Blower Outlet (15 x 11) 27-3/4 (705) 18-1/16 (459) 14-3/4 x16-1/16 (375 x 408)
B2
Blower Outlet (15 x 15) 50-3/8 (1280) 18-1/16 (459) 18-3/4 x 16-1/16 (476 x 408)
Blower Outlet (15 x 11) 54-3/8 (1381) 18-1/16 (459) 14-3/4 x16-1/16 (375 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)
3-1/2"
(89mm)
Blower
Outlet
Section A-A
Front View
16-1/16"
(408mm)
B2
A A
X
Y
O
Tolerance on all
piping dimensions
is ± 1/2" (13mm)
109"
(2769mm)
Front of Unit
Note: Drawing not to scale
DPN000933
Rev. 2
W
8" (203mm) WS
WR
LV3
LV2
LV1
ECS
HUM
CD
ECR
E1 E2
B1
Blower
Outlet
35"
(889mm)
All dimensions
from rear corner
of unit including
panels