User manual

Piping Schematics
113 Liebert
®
DS
™
Figure 85 Primary connection locations—downflow, water/glycol/GLYCOOL, 53-77kW (15-22 ton), all
compressor *** models, with EC fans
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)*
68-3/8 (1737) 31-3/8 (797) 3/4 FPT
W/Optional Pump 68-3/8 (1737mm) 31-3/8 (797) 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 73-15/16 (1862) 26-9/16 (675) 2-1/8 Cu Sweat
HS Hot Water Reheat Supply CONSULT FACTORY
HR Hot Water Reheat Return CONSULT FACTORY
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) 2 (51) 29 (737) 7/8"
LV2 Electrical Conn. (Low Volt) 2 (51) 30-7/8 (784) 7/8"
LV3 Electrical Conn. (Low Volt) 2 (51) 32 (813) 7/8"
B1 Blower Outlet 4-1/2 (114) 33 (838) 58-3/8 x 30 (1483 x 762)
* 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 (four- pipe system)
*** Digital scroll compressor not available on 077 models.
Source: DPN002183, Rev. 0
A
A
W
LV1
LV2
LV3
O
X
Y
WS
WR
B1
DPN002183
Rev. 0
FRONT OF UNIT
FRONT VIEW
SECTION A-A
Note: Drawing not to scale.
Tolerance on all piping
dimensions is ± 1/2" (13mm).
ECS ECR
E1 E2
BLOWER
OUTLET
109" (2769mm)
35"
(889mm)
3-1/2" (89mm)
8"
(203mm)
HUM
CD
All dimensions from
rear corner of unit
including panels