Liebert DS user manual DPN000933, 16-1/16, 408mm

Piping Schematics

Figure 71 Primary connection locations—downflow, water/glycol/GLYCOO,L 53-77kW (15-22 ton), all compressor models

Note: Drawing not to scale					All dimensions
					from rear corner
		A		A
Tolerance on all					of unit including
		Front View
piping dimensions					panels
is ± 1/2" (13mm)			Section A-A		X
					O
	3-1/2"	Blower	16-1/16"	Blower
	W (89mm)				Y
		Outlet	(408mm)	Outlet
8" (203mm)	WS
	WR		B2	B1	35"
		ECS			(889mm)
					LV1
		HUM ECR
		CD			LV2
					LV3

E1 E2	Front of Unit
		109"
	(2769mm)		DPN000933
			Rev. 2

		X		Y	Connection Size / Opening
Point)	Description)	inches (mm)		inches (mm)	inches (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 *	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 x16-1/16 (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 x16-1/16 (375 x 408)

*Field-pitch condensate drain line a minimum of 1/8" (3.2mm) per foot (305mm). 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)

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