Site Preparation And Installation; Installation Considerations; System Configurations; Table 1 System Configurations - 60Hz - Liebert Mini-Mate2 MMD24E User Manual

5.0 S P
ITE REPARATION AND
NOTE
Before installing unit, determine whether any building alterations are required to run piping,
wiring and ductwork. Carefully follow all unit dimensional drawings and refer to the
submittal engineering dimensional drawings of individual units for proper clearances.
5.1

Installation Considerations

The evaporator unit is usually mounted above the suspended ceiling of the space to be conditioned.
Ducted systems may be installed in a different room.
5.1.1

System Configurations

The typical system configuration has a separate evaporator or cooling unit and a condensing unit.
Chilled water systems are self-contained units. Refer to Tables 1 and 2 and to Figures 8, 9 and 10
for different system combinations and unit configurations that are possible.
Table 1 System configurations - 60Hz
Nominal
Capacity
2 Tons
3 Tons
Table 2 System configurations - 50Hz
Nominal Cooling
Capacity Unit
MM_35E
3 Tons
MM_39C
Table 3 Application limits, evaporator and chilled water units*
Input Voltage
Minimum Maximum
-5%
* Unit will operate at these conditions but will not control to these extremes of conditions.
Table 4 Application limits, indoor and outdoor air-cooled condensing units
Input Voltage
Minimum Maximum
-5%
* Unit capacity ratings are stated for 95°F (35°C) for standard units and 105°F (41°C) for high ambient PFH units only.
Exceeding these rating points by 20°F (11°C) will result in lower cooling capacities, but will not damage the equipment.
Table 5 Application limits, indoor water/glycol-cooled condensing units
Input Voltage
Minimum
-5%
* Operation below 65°F (18°C) may result in reduced valve life and fluid noise.
I
NSTALLATION
Cooling Indoor Air-Cooled
Unit Centrifugal fan
MM_24E MC_24A
MM_36E MC_36A
MM_40C
Indoor Air-Cooled
Centrifugal fan
MC_35A
Range of Return Air Conditions to Unit
Dry Bulb Temperature
+10% 65°F to 85°F (18°C to 29°C)
Condensing
Units
Outdoor Prop Fan
Condensing Unit
+10%
Indoor Air-Cooled
Condensing Unit
Maximum
+10%
Condensing Unit
Outdoor Air-Cooled
Propeller Fan
PFH_27A
PFH_37A
Self-Contained - Chilled Water
Condensing Unit
Outdoor Air-Cooled
Propeller Fan
PFH_36A
Self-Contained - Chilled Water
Relative Humidity
20% to 80%
Entering Dry Bulb Air Temperature
Minimum
-30°F (-34°C)
Entering Fluid Temperature
Minimum
65°F (18.3°C) *
13

Site Preparation and Installation

Indoor
Water/Glycol
MC_26W
MC_38W
Indoor Remote
Water/Glycol-Cooled
MC_37W
Maximum
115°F (46°C) standard unit*
125°F (52°C) high ambient unit*
115°F (46°C)*
Maximum
115°F (46°C)
®
Liebert Mini-Mate2
™