User manual

Piping Schematics
Liebert
®
DS
™
120
Figure 92 Primary connection locations—upflow, water/glycol/GLYCOOL, 28-42kW (8-12 ton), all
compressor models
Point Description
X
in. (mm)
Y
in. (mm)
Connection Size / Opening
in. (mm)
W1 Water/Glycol/GLYCOOL Access (Bottom) 79-15/16 (2030) 9 (229) 3-1/2 x 8 (89 x 203)
W2 Water/Glycol/GLYCOOL Access (Top) 79-15/16 (2030) 9 (229) 3-1/2 x 8 (89 x 203)
W3 Water/Glycol/GLYCOOL Access (Side) — — 6 x 17-3/16 (152 x 437)
WS Water/Glycol/GLYCOOL Supply — — 1-5/8 Cu Sweat
WR Water/Glycol/GLYCOOL Return — — 1-5/8 Cu Sweat
CGD Condensate Gravity Drain — — 3/4 FPT
CPD Condensate Pump Discharge (Opt) 56-1/4 (1429) 11-1/8 (282) 1/2 Cu Sweat
HUM Humidifier Supply Line 56-1/4 (1429) 9-1/8 (232) 1/4 Cu Sweat
ECS** Econ-O-Coil Supply 56 (1423) 7-5/16 (186) 1-5/8 Cu Sweat
ECR** Econ-O-Coil Return 56 (1423) 4-1/2 (114) 1-5/8 Cu Sweat
E1 Electrical Connection (High Voltage) 52-3/8 (1330) 30 (762) 2-1/2
E2 Electrical Connection (High Voltage) 46-7/8 (1191) 30 (762) 2-1/2
LV1 Electrical Connection (Low Voltage) 19-1/2 (495) 29-1/16 (738) 7/8
LV2 Electrical Connection (Low Voltage) 19-1/2 (495) 30-1/2 (775) 7/8
LV3 Electrical Connection (Low Voltage) 19-1/2 (495) 31-15/16 (811) 7/8
* 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)
Source: DPN0011793, Rev. 3
8"
(203mm)
LEFT SIDE SECTION VIEW OF UNIT
NOTES:
1. Drawing not to scale.
2. Tolerance on all piping dimensions is ± 1/2" (13mm).
3. Field routed alternatives for water/glycol connections.
4. See submittal page DPN001120 for blower outlet and deck
dimensional data.
TOP VIEW OF UNIT
All dimensions from
rear corner of unit
including panels
X
O
Y
W1, W2
Blower
Outlet
Front of Unit
86" (2184mm)
FRONT SECTION VIEW OF UNIT
(Left Front Panel Not Shown)
2-7/8"
(73mm)
3-1/2"
(89mm)
35"
(889mm)
3-7/8"
(98mm)
DPN001179
Rev. 3
6"
(152mm)
17-3/16"
(437mm)
15-7/8"
(403mm)
14-1/4"
(362mm)
CGD*
3
3
3
3
3