Liebert 3000 HumidifierWater SupplyLine, Suction Refrigerant Line, Condensate Pump Line

Installation

Figure 5 Piping connections for split system fan coil units

UPFLOW (BU) MODELS

HumidifierWater SupplyLine

1/4" OD CU

Suction Refrigerant Line

#11 Quick Connect on Models BU036E/BU035E 1 1/8" OD CU on Models BU060E/BU059E

Condensate Pump Line

1/2" OD CU

Used only if optional condensate pump is ordered.

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).

Piping outlet locations through the plenum are the same as the unit. See below for descriptions and connection sizes.

Hot Water Return

5/8" OD CU (optional)

Liquid RefrigerantLine

#6 Quick Connect on Models BU036E/BU035E 1/2" OD CU on Models BU060E/BU059E

Hot Water Supply

5/8" OD CU (optional)

Monitoring Panel

PIPINGOUTLET LOCATIONS

(See Cabinet and Floor Planning

Dimensional Data for Piping

Opening Sizes.)

SL-11900 PG 8

8