Technical data

Chilled Water Systems—Capacities and Dimensions
Liebert
®
Mini-Mate2
™
21
8.0 CHILLED WATER SYSTEMS—CAPACITIES AND DIMENSIONS
Table 7 Chilled water data, 50/60Hz
Model Number, 50 & 60 Hz
MMD23C/MMD22C
Net Capacity Data - kW (Btu/hr) based on 45°F (7.2°C) EWT & 10°F (5.6°C) temp. rise
80°F DB, 62.8°F WB (26.7°C DB,
17.1°C WB) 38% RH
Total 4.85 (16,400)
Sensible 4.80 (16,300)
Flow Rate - GPM (l/m) 3.4 (12.9)
Pressure Drop - ft. water (kPa) 10.7 (32.0)
75°F DB, 61°F WB (23.9°C DB,
16.1°C WB) 45% RH
Total 3.85 (13,100)
Sensible 3.80 (13,000)
Flow Rate - GPM (l/m) 2.8 (10.6)
Pressure Drop - ft. water (kPa) 7.2 (21.5)
72°F DB, 60°F WB (22.2°C DB,
15.5°C WB) 50% RH
Total 3.20 (11,000)
Sensible 3.20 (10,900)
Flow Rate - GPM (l/m) 2.3 (8.7)
Pressure Drop - ft. water (kPa) 5.3 (15.8)
Fan Data - Evaporator
CFM (CMH) - High Speed 750 (1274)
CFM (CMH) - Low Speed 600 (1019)
Fan Motor hp (W) 0.2 (149)
External Static Pressure, in. (mm) water gauge 0.3 (8)
CW Coil - Copper Tube/Aluminum Fin
Face Area ft.
2
(m
2
) 2.44 (0.23)
Coil Rows 2
Max Face Velocity-fpm (m/s) 291 (1.5)
Electric Reheat Capacity (Includes Fan Motor)-kW (Btu/hr)
Input Voltage 208-1-60 3.6 (12160)
Input Voltage 230-1-60 4.4 (14875)
Input Voltage 277-1-60 4.8 (16285)
Input Voltage-220-1-50 4.0 (13640)
Hot Water Reheat Coil - Copper Tube/Aluminum Fin
Capacity (with fan motor heat)
using 180°F (82°C) EWT-kW (Btu/hr)
9.5 (32,400)
Flow Rate - GPM (l/m) 1.5 (5.7)
Pressure Drop - ft. water (kPa) 1.5 (4.5)
Face Area ft.
2
(m
2
) 2.44 (0.23)
Coil Rows 1
HWRH supply and return connections, in. (mm) OD 5/8 (15.9)
Humidifier Data - Steam Generator Type
Steam capacity - lb./hr (kg/hr) 2.5 (1.14)
Electrical Input Power - kW 0.88
Unit Connection Sizes
CW supply and return connections, in. (mm) OD 5/8 (15.9)
Humidifier Supply 1/4" OD Cu Compression Fitting
Evaporator/Condensate Drain 3/4" NPT-Female
Unit Internal Fluid Volume - gal (l) 1.7 (6.4)
MERV 8 Filter, Supply/Return Grille, qty. (1),
Nom. Size-in. (mm)
1x20x20 (25x508x508)
MERV 8 Filter, Return Air Filter Box, qty. (1),
Nom. Size-in. (mm)
1x16x20 (25x406x508)
Unit Operating Weight, lb. (kg.) 220 (99.8)
Unit Valve Types On/Off Slow Close - 2 & 3-Way
Valve Size 1/2"
Valve Cv 2.5
Max. Static Operating Pressure, psi (kPa) 300 (2068)
Close-Off Pressure, psi (kPa) 25 (172)
The net capacity data has fan motor heat factored in for all ratings and the entering air conditions of 75°F (23.9°C), 45% RH, is the standard
rating condition for ASHRAE 127-2007. All capacities are nominal values; actual performance will be ±5%.