1 PRODUCT DESCRIPTION
Figure 1.1 Model number nomenclature
1.1 Prop Fan Condensing Units
Liebert® propeller fan condensing units are available in a range of sizes and configurations to offer
flexibility in designing a precision environmental control system. The appropriate propeller fan
condensing unit paired with a corresponding Liebert fan coil evaporator model such as Liebert
DataMate™, Liebert Mini-Mate2™ or Liebert Challenger 3000™ is an effective solution for your
environmental control application requirements.
Split system condensing units are connected to the evaporator unit by two refrigerant lines (four in 8-ton
systems) and a low-voltage control cable. The condensing unit requires a separate power source and
power disconnect switch.
1.1.1 Base System 95°F (35°C) Ambient Models
The heart of the refrigeration system is a quiet, high efficiency scroll compressor with internal vibration
isolation mountings, pressure safety controls and built-in overload protection. Standard features include
crankcase heater, high-pressure switch, condenser coil, sight glass, filter drier, hot gas bypass system with
liquid quenching valve, direct drive propeller fan and motor, and Liebert Lee-Temp™ flood-back head
pressure control. These models are designed to provide catalog capacity of the appropriate evaporator
section up to 95°F (35°C) outside ambient temperature.
1.1.2 105°F (41°C) Ambient Models
These models contain similar components to the base models except the coils and fans are sized to
provide catalog capacity of the appropriate evaporator section up to 105°F (41°C) outside ambient
temperature.
1.1.3 Liebert Quiet-Line
™
Models
These models contain similar components to the base models except the coils and fans are sized to
provide catalog capacity of the appropriate evaporator section up to 95°F (35°C) outside ambient
temperature with a noise level of less than 58 dBA.
Vertiv
| Liebert PFH Installer/User Guide |
1
Summary of Contents for PFH020A-L
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