User manual

Piping Schematics
Liebert
®
DS
™
112
Figure 84 Primary connection locations—downflow, water/glycol/GLYCOOL, 53-77kW (15-22 ton), all
compressor *** models
Point Description
X
in. (mm)
Y
in. (mm)
Connection Size / Opening
in. (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
(infrared humidifier or no humidifier)*
69-1/4 (1759) 30 (762) 3/4" FPT
Condensate Drain
(steam generating humidifier)*
69-1/4 (1759) 30 (762) 1-1/4" 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
E1 Electrical Conn. (High Volt) 78-1/2 (1994) 31-1/8 (790) 2-1/2"
E2 Electrical Conn. (High Volt) 75-3/8 (1915) 31-1/8 (790) 2-1/2"
LV1 Electrical Conn. (Low Volt) 1-7/8 (48) 28-1/2 (724) 7/8"
LV2 Electrical Conn. (Low Volt) 1-7/8 (48) 30-1/4 (768) 7/8"
LV3 Electrical Conn. (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 x 16-1/16 (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 x 16-1/16 (375 x 408)
* 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 Cooling Systems only (4 pipe system)
*** Digital scroll compressor not available on 077 models.
Source: DPN000933, Rev. 4
W
WS
WR
O
X
Y
A
A
8"
(203mm)
NOTE: Drawing not to scale.
Tolerance on all piping
dimensions is ± 1/2" (13mm).
FRONT OF UNIT
DPN000933
Rev. 4
FRONT VIEW
SECTION A-A
All dimensions from
rear corner of unit
including panels
ECS
ECR
E1 E2
HUM
CD
B1
LV1
LV2
LV3
BLOWER
OUTLET
BLOWER
OUTLET
B2
109" (2769mm)
3-1/2"
(89mm)
35"
(889mm)
16-1/16"
(408mm)