Emerson 3000 - Manual (Page 17)

Installation (Applicable to all Models)
11
Figure 5 Piping connections for air-cooled units - Upflow models
Condensate Drain
3/4" FPT
Field pitch a min. of 1/8" (3.2mm) per ft. (305mm). Units without
a condensate pump have a factory-supplied trap in the unit, so a
field trap should not be added. Units with a condensate pump will
require a field-supplied trap downstream from the pump.The
drain line must comply with all applicable codes. (If condensate
pump is ordered piping is out top of unit).
DPN000352
Rev. 01
Piping outlet locations through the plenum
are the same as the unit. See below for
descriptions and connection sizes.
Humidifier Water Supply Line
1/4" OD CU
Hot Gas Refrigerant Line
5/8" OD CU on Models BU042A/BU040A
7/8" OD CU on Models BU067A/BU065A
Condensate Pump Line
1/2" OD CU
Used only if optional condensate
pump is ordered.
Hot Water Return
5/8" OD CU (optional)
Liquid Refrigerant Line
3/8" OD CU on Models BU042A/BU040A
1/2" OD CU on Models BU067A/BU065A
Hot Water Supply
5/8" OD CU (optional)
Liebert iCOM
Control
PIPING OUTLET LOCATIONS
(See Cabinet and Floor Planning
Dimensional Data for Piping
Opening Sizes.)