Compressor Models, With Ec Fan - Emerson Liebert DS Series User Manual

Figure 82 Primary connection locations—downflow, air-Cooled, 53-77kW (15-22 ton) with scroll

compressor models, with EC fan

Note: Drawing not to scale.
Tolerance on all piping
dimensions is ± 1/2" (13mm).
L1 L2 G1 G2
4" (102mm)
12-3/16"
(310mm)
Point Description
R Refrigerant Access
L1 Liquid Line System
L2 Liquid Line System 2
G1 Hot Gas Discharge 1
G2 Hot Gas Discharge 2
Condensate Drain (Infrared
Humidifier or No Humidifier)*
CD
W/ Optional Pump
HUM Humidifier Supply Line
ECS** Econ-O-Coil Supply
ECR** Econ-O-Coil Return
HS Hot Water Reheat Supply
HR Hot Water Reheat Return
E1 Electrical Conn. (High Volt)
E2 Electrical Conn. (High Volt)
LV1 Electrical Conn. (Low Volt)
LV2 Electrical Conn. (Low Volt)
LV3 Electrical Conn. (Low Volt)
B1 Blower Outlet
* 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)
A
SECTION A-A
R
ECS ECR
CD
E1 E2 HUM
X
in. (mm)
81-3/4 (2076)
94-11/16 (2405)
91-7/8 (2334)
88-3/4 (2254)
85-9/16 (2173)
68-3/8 (1737)
68-3/8 (1737)
76-1/2 (1943)
78-5/8 (1997)
73-15/16 (1862)
78-1/2 (1994)
75-3/8 (1915)
2 (51)
2 (51)
2 (51)
4-1/2 (114)
FRONT VIEW
BLOWER
OUTLET
FRONT OF UNIT
98" (2489mm)
Y
in. (mm)
14-3/4 (374)
53kW (15 Tons) / 70 & 77kW (20 & 22 Tons)
16-3/4 (425)
16-3/4 (425)
16-3/8 (416)
16-3/8 (416)
31-3/8 (797)
31-3/8 (797)
29 (736)
22-1/4 (565)
26-9/16 (675)
CONSULT FACTORY
CONSULT FACTORY
31-1/8 (790)
31-1/8 (790)
29 (737)
30-7/8 (784)
32 (813)
33 (838)
109
Piping Schematics
All dimensions from
rear corner of unit
including panels
A
X
LV1
LV2
B1
LV3
DPN002182
Rev. 0
Connection Size / Opening
in. (mm)
12-3/16 (310) X 4" (102)
1/2 / 5/8" Cu Sweat
1/2 / 5/8" Cu Sweat
7/8 / 1-1/8" Cu Sweat
7/8 / 1-1/8" Cu Sweat
3/4 FPT
1/2 Cu Sweat
1/4 Cu Sweat
2-1/8 Cu Sweat
2-1/8 Cu Sweat
2-1/2"
2-1/2"
7/8"
7/8"
7/8"
58-3/8 x 30 (1483x762)
O
Y
35"
(889mm)