Liebert DS user manual Piping Schematics, Connection Size / Opening, Point, Description, inches mm

Piping Schematics

Figure 70 Primary connection locations—downflow, air-Cooled, 53-77kW (15-22 ton) with scroll compressor models

Note: Drawing not to scale

Tolerance on all piping dimensions A is ± 1/2" (13mm)

		All dimensions
		from rear corner
		of unit including
	A	panels
Front View
			X
Section A-A				O

4" (102mm)

	Blower		Blower
R		16-1/16"		Y
	Outlet	(408mm)	Outlet

L1	L2	G 1	G2			B1	35"
					B2
							(889mm)
				ECS

12-3/16"	HUM ECR	LV1
(310mm)	CD	LV2
		LV3
	E1 E2	Front of Unit

98"

(2489mm)

DPN000929

Rev. 2

		X	Y	Connection Size / Opening
Point	Description	inches (mm)	inches (mm)	inches (mm)
R	Refrigerant Access	81-3/4 (2076)	14-3/4 (374)	12-3/16 x 4 (310 x 102)
			53kW (15ton) / 70 & 77kW (20 & 22ton)
L1	Liquid Line System 1	94-11/16 (2405)	16-3/4 (425)	1/2 / 5/8 Cu Sweat
L2	Liquid Line System 2	91-7/8 (2334)	16-3/4 (425)	1/2 / 5/8 Cu Sweat
G1	Hot Gas Discharge 1	88-3/4 (2254)	16-3/8 (416)	7/8 / 1-1/8 Cu Sweat
G2	Hot Gas Discharge 2	85-9/16 (2173)	16-3/8 (416)	7/8 / 1-1/8 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 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 (375) x 16-1/16 (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 Cool systems only (4 pipe system)

95