Vertiv Liebert Mini-Mate2 Instruction manual

Liebert® Mini-Mate2™
2 & 3 Ton (7 & 10.5kW)Capacity, Air, Water, Glycol,
ChilledWater; 50&60Hz
Technical Data Manual

Technical Support Site
If you encounter any installation or operational issues with your product, check the pertinent section of
this manual to see if the issue can be resolved by following outlined procedures. Visit
https://www.VertivCo.com/en-us/support/ for additional assistance.

TABLE OF CONTENTS
1 Introduction 5
1.1 Designed to Match Computer and Electronic Equipment Needs—From Installation to Operation 5
2 Standard Features—2 & 3 Ton Systems 7
2.1 Evaporator Section - Split Systems 7
2.2 Condensing Unit Section—Split Systems 7
2.2.1 Indoor Centrifugal Fan Condensing Units 7
2.2.2 Outdoor Prop Fan Condensing Units 7
2.2.3 Indoor Water/Glycol Condensing Units 7
2.3 Chilled Water Units 7
2.4 System Controls 8
2.4.1 Other Standard Control Features 8
3 Optional Factory-Installed Features—Evaporator/Chilled Water Units 9
3.1 Reheat 9
3.2 Humidifier 9
3.3 Sensors 9
3.4 Switches and Motors 9
3.5 Free-Cooling 10
3.6 Optional Configurations—Prop Fan Condensing Units 10
3.7 Optional Configurations—Water/Glycol Condensing Units 11
3.8 Optional Configurations—Chilled Water Units 11
4 Ship-Loose Accessories—Field-Installed 13
4.1 Remote Monitoring, Autochangeover, and Leak Detection Equipment 13
5 Flexible Configurations 15
6 Air-Cooled Systems—Capacities and Dimensions 17
7 Water/Glycol Systems—Capacities and Dimensions 29
8 Chilled Water Systems—Capacities and Dimensions 39
9 Electrical Data 45
10 Refrigerant Piping 59
11 Glycol Loop Piping 63
12 Model Number Nomenclature—All Systems 65
Appendices 69
Appendix A: Guide Specifications for Liebert Mini-Mate2 - 2- and 3-Ton 69
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1 INTRODUCTION
1.1 Designed to Match Computer and Electronic Equipment Needs—From
Installation to Operation
Installed above the ceiling, Liebert Mini-Mate2 Thermal Management systems control the cooling,
humidity and air distribution required by sensitive electronic equipment. A range of sizes and
configurations is available to meet varying sites’ needs.
The Liebert Mini-Mate2 is also easy to use. Advanced microprocessor technology allows easy, precise
control, and menu-driven monitoring keeps you informed of system operation through the LCD readout.
These features, combined with Vertiv™ quality construction and reliable components, guarantee
satisfaction from installation through operation.
Liebert Thermal Management
Liebert Thermal Management systems are designed to control the environment required for computers
and other sensitive electronic equipment. The Liebert Mini-Mate2 provides complete control on a round-
the-clock basis and the high sensible heat ratio required by sensitive electronic equipment.
Easy Installation
The Liebert Mini-Mate2 is a split-system evaporator combined with an air-, water- or glycol-cooled
condensing unit or is a self-contained, chilled water unit. Each split system has thermostat-type wiring to
controls and condensing unit. System components are pre-charged with refrigerant and can be
connected together with optional pre-charged line sets or optional sweat adapters for field refrigerant
piping.
Easy to Service
Low-maintenance components are easily accessed through removable front panels. Spare parts are
always in Vertiv™ inventory and available on short notice.
Advanced Control Technology
A menu-driven microprocessor control system provides precise temperature and humidity control and
accurate alarm setpoints. Using touch-sensitive buttons, the wall-mounted monitor/control panel allows
you to select and display temperature and other monitored parameters.
High Efficiency
High sensible heat ratio, scroll compressor and precise microprocessor control allow the system to operate
efficiently.
Space Saving Design
All indoor components are installed above the ceiling, so no floor space is required.
Reliable
The Liebert Mini-Mate2 family installed base is a testimony to the system reliability. Components include a
rugged scroll compressor, high-efficiency copper tube, aluminum-fin evaporator coil and a double inlet,
direct drive fan.
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Agency Listed
Standard 60Hz units are CSA certified to the harmonized U.S. and Canadian
product safety standard, CSA C22.2 No 236/UL 1995 for “Heating and Cooling
Equipment” and are marked with the CSA c-us logo.
Location
When considering installation locations, consider that these units contain
water and that water leaks can cause damage to sensitive equipment below.
Do not mount these units above sensitive equipment. A field-supplied pan with
drain must be supplied beneath cooling units and water/glycol condensers.
Do not mount units in areas where normal unit operating sound might disturb the working environment.
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2 STANDARD FEATURES—2 & 3 TON SYSTEMS
2.1 Evaporator Section - Split Systems
The evaporator section is designed for ceiling installation. The cabinet and chassis are constructed of
heavy gauge galvanized steel. The unit can be serviced using only one side increasing its versatility in
mounting locations. Mounting brackets are factory-attached to the cabinet. Internal cabinet insulation
meets ASHRAE 62.1 requirements for Mold Growth, Humidity & Erosion, tested per UL181 and ASTM 1338
standards.
The evaporator section includes the evaporator coil, R-407C unit charge, filter-drier, factory-mounted
disconnect switch, two-speed direct-drive blower assembly and microprocessor control with wall-mounted
control box. The unit is provided with supply and return air openings for field-supplied ducting or
supply/return plenum. Evaporators can be configured with canister humidifier and/or reheat. An indoor or
outdoor condensing unit must be selected for each evaporator.
2.2 Condensing Unit Section—Split Systems
2.2.1 Indoor Centrifugal Fan Condensing Units
Indoor Air-Cooled Centrifugal Fan Condensing Units include scroll compressor, factory-mounted
disconnect switch, condenser coil, R-407C unit charge, belt-driven centrifugal blower assembly,
high-pressure switch, Liebert Lee-Temp™ head pressure control system, hot gas bypass and liquid-line
solenoid valve. Unit must be mounted indoors. Condensing unit is designed to use outdoor air with
temperatures ranging from -30°F to 95°F (-34°Cto35°C).
2.2.2 Outdoor Prop Fan Condensing Units
Outdoor Prop Fan Condensing Units include scroll compressor, condenser coil, R-407C unit charge, prop
fan, liquid-line solenoid valve, high pressure switch, Liebert Lee-Temp head pressure control and hot gas
bypass. Condensing unit is designed for outdoor locations with operating ambients ranging from -30°F to
95°F (-34°Cto35°C).
2.2.3 Indoor Water/Glycol Condensing Units
Indoor Water/Glycol Condensing Units includes scroll compressor, R-407C unit charge, factory-mounted
disconnect, coaxial condenser, hot gas bypass, high head pressure switch and two-way water regulating
valve designed for 150psi (1034.3kPa). Condensing units can be used on either a water or glycol cooling
loop.
2.3 Chilled Water Units
Chilled Water Units are designed for ceiling installation. The cabinet and chassis are constructed of heavy
gauge galvanized steel. The unit can be serviced using only one side increasing its versatility in mounting
locations. Mounting brackets are factory-attached to the cabinet. Internal cabinet insulation meets
ASHRAE 62.1 requirements for Mold Growth, Humidity & Erosion, tested per UL181 and ASTM 1338
standards. Chilled water models are self-contained and include a chilled water coil, two-speed, direct-drive
centrifugal blower, factory-mounted disconnect switch and two-way, slow-close motorized valve. Design
pressure is 300psi (2068kPa), 60psi (414kPa) close-off differential.
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2.4 System Controls
System controls include a microprocessor control board mounted in the evaporator/chilled water unit and
a wall-mounted interface with a two-line, 16-character liquid crystal display. An eight-key, membrane
keypad for setpoint/program control, unit On/Off, fan speed and alarm silence is below the LCD screen. It
provides temperature setpoint and sensitivity adjustment, humidity setpoint and sensitivity adjustment,
digital display of temperature, humidity, setpoints, sensitivities, fan speed and alarm conditions.
The wall-box is field-wired to the microprocessor control using standard four-conductor thermostat wire
(field-supplied). The temperature and humidity sensors are in the wall box, which can be installed up to
300 feet (91.4m) from the evaporator unit. The unit-mounted control board also includes common alarm
terminals and shutdown terminals. The unit automatically restarts after a power outage.
Figure 2.1 Wall-box
2.4.1 Other Standard Control Features
•Adjustable auto restart
•5 day/2 day setback
•Password protection
•Alarm enable/disable
•Self-diagnostics
•Calibrate sensors
•Predictive humidity control
•Common alarm output
•Remote shutdown terminals
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3 OPTIONAL FACTORY-INSTALLED FEATURES—
EVAPORATOR/CHILLED WATER UNITS
3.1 Reheat
Electric Reheat includes 304/304 stainless steel finned tubular reheat elements, with high limit safety
switch.
SCR Electric Reheat uses an SCR controller and unit control software to provide full cooling with
modulating of the electric reheat elements to control air temperatures. Reheat capacity is up-sized to
offset the cooling capacity. (The SCR Electric Reheat is not available on chilled water, free-cooling or 575V
units.)
Hot Water Reheat includes hot water coil, 2-way solenoid valve and Y-strainer.
NOTE: This option is available only on Chilled Water units, but not with other reheat options.
3.2 Humidifier
The Canister Humidifier includes a steam-generating type humidifier with automatic flushing circuit, inlet
strainer, drain, 1" (25.4mm) air gap on fill line and solenoid valves. Humidifier problem alarm annunciates at
the wall-mounted display panel.
Remote Humidifier Contact allows the unit’s humidity controller to control a humidifier outside the unit.
Power to operate the remote humidifier does not come from the Liebert Mini-Mate2. Available on units
with or without internal humidifier.
3.3 Sensors
Smoke Sensor checks return air, shuts down the unit upon sensing smoke and activates visual and
audible alarms at the wall-box display. This smoke sensor is not intended to function as or replace any
smoke sensor system that may be required by local or national codes.
High-Temperature Sensor senses the return air temperature and shuts down unit if the temperature
reaches 125°F (52°C). This device is not meant to replace any fire detection system that may be required
by local or national codes.
3.4 Switches and Motors
Filter Clog senses pressure drop across the filters and activates visual and audible alarms at the wall-box
display. The wall-box display annunciates the alarm and flashes a notification upon reaching a customer
setpoint.
AFactory-Installed Non-Fused Disconnect Switch allows unit to be turned off for maintenance. A
disconnect switch is standard for the evaporators, chilled water units and indoor condensing units, but
these units may be specified without the switch.
Direct-Drive blower can be factory-eliminated from the evaporator/chilled water cabinet for high static
applications (0.9 to 1.5in. [23 to 38mm] w.g.). See Ship-Loose Accessories—Field-Installed on page13 for
the optional, externally mounted high static blower assembly.
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3.5 Free-Cooling
Free-cooling option includes separate cooling coil, three-way slow-close valve and separate supply and
return piping. Free-cooling is activated when the water temperature reaches a field-adjustable
temperature, typically 45°F (7°C). The valve is rated for 300psi (2068kPa) working pressure.
Air-cooled condensing units can be matched with evaporators using free-cooling coils with chilled water
sources to serve as backup cooling. When matched with a water/glycol condensing unit, a three-way
water regulating valve is recommended for the condensing unit to simplify piping to the main supply
pipes. The coil is designed for closed-loop applications using properly treated and circulated fluid. Not
available with SCR reheat options.
Figure 3.1 Free-cooling arrangement
NOTE: If free-cooling is applied to an open water tower, an optional cupro-nickel (CuNi) coil is required
to prevent premature corrosion, or a heat exchanger must separate the tower water from the free-
cooling loop. The cupro-nickel coil requires an extended lead time.
3.6 Optional Configurations—Prop Fan Condensing Units
Outdoor Prop Fan Condensing Units are also available in the following optional configurations:
•High ambient models for providing catalog capacities at ambient temperatures up to 105°F
(40°C).
•Quiet-Line models for low noise level conditions (below 58 dBA) and for providing catalog
capacities at ambient temperatures up to 95°F (35°C).
•Condenser coils can be phenolic-coated for extended coil life in coastal areas.
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3.7 Optional Configurations—Water/Glycol Condensing Units
Indoor Water/Glycol Condensing Units are also available with the following piping options:
•Two-way water reg. valve with 350 psi (2413kPa) design pressure.
•Three-way water reg. valve with 150psi (1034kPa) design pressure.
•Three-way water reg. valve with 350psi (2413kPa) design pressure.
3.8 Optional Configurations—Chilled Water Units
Chilled Water Units are also available with the following valve option:
•Three-way, slow-close, motorized chilled water valve rated for 300 psi (2068 kPa) working
pressure. Valve is non-spring return.
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4 SHIP-LOOSE ACCESSORIES—FIELD-INSTALLED
AHigh Static Blower Assembly can be field-attached to the evaporator to provide up to 2.0" (51mm) of
external static pressure on the discharge side of the evaporator. The blower box contains a centrifugal-
type double-inlet blower. This blower is equipped with a belt drive and 1.5hp single speed motor mounted
to an adjustable motor base. Note:Unit must be ordered without the internal direct drive motor and the
high static blower disables the two-speed fan operation feature.
Filter box kit (for ducted applications) includes filter box with duct flange connection, one MERV8
(ASHRAE 52.2-2007) filter (20"x20"x4" [508mm x 508mm x 102mm]), and a duct flange for use on the
supply air opening of the unit.
Air Distribution Plenum includes molded plastic three-way discharge plenum, 16"x25"x4" (406mmx
535mm x 102mm) MERV 8 filter (ASHRAE 52.2-2007), and sheet metal block-off plates for covering the
duct openings on the evaporator unit. Plenum mounting requires T-bar ceiling grid.
The Condensate Pump is field-mounted external to the cabinet, wired to the unit power block and is
equipped with a check valve. A secondary float can be field-wired to shut down the unit upon high
condensate level.
ARemote Temperature and Humidity Sensor package includes sensors in an attractive case with 30 ft. (9
m) of cable. Can be wall or duct mounted. Remote sensors should be used when the wall box is not located
in the space to be conditioned.
NOTE: Installing the remote sensors disables the sensors included in the wall box.
Field-Installed Kits available for filter clog, smoke sensor, high-temperature sensor, electric reheat and
humidifier. The kits include installation instructions and are designed to be added to the evaporator unit
before it is installed in the ceiling. Electric reheat kits cannot be installed in units with free-cooling.
277-to-208V step-down transformer (37.5 amps) allows use of 277-1-60 supply power with a 208-1-60
Prop Fan Condensing unit. The transformer is coated with epoxy and contained in an enclosed, non-
ventilated electrical box with adaptable mounting brackets.
Single-Point Power Kit contains the necessary electrical components to interconnect the high-voltage
sections of a close-coupled evaporator and an MCD condensing unit.
Pre-Charged Refrigerant Line Set (R-407C) contains an insulated copper suction line and a copper liquid
line for interconnection of the indoor and outdoor sections. Available in 15-foot (4.5m) and 30-foot (9m)
sections.
The Refrigerant-Line Sweat Adapter Kit contains two suction and two liquid line fittings that allow field-
supplied refrigerant piping between the evaporator and condensing unit.
4.1 Remote Monitoring, Autochangeover, and Leak Detection Equipment
The Liebert RCM4™ is a four-point, normally open, dry contact monitoring panel. One Form-C, dry
contact common alarm relay output (rated at 24 VAC, 3 Amp) is provided. Four red LEDs illuminate on the
respective alarm and the alarm buzzer is silenced by a front panel switch. The RCM4 requires a 24VAC or
24VDC power source. Power supply is not included.
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The Liebert AC4™Autochangeover Controller provides autochangeover and autosequence control for
up to four Liebert Mini-Mate2 units within a room. The Liebert AC4 will enable redundant units in an
alarm condition, balance usage and test standby units at programmed intervals. Two common alarm relay
outputs are available. A built-in LCD and RS-232 port for direct PC/terminal connection provides two
options for configuration and monitoring of the product. The Liebert AC4 requires 24VAC input power.
The Liebert®AC8™is ideal for coordinated control of systems with redundant units. The Liebert AC8
enables redundant devices during an alarm condition, balances usage of devices and tests standby
devices at programmable intervals. Supports four zones and can use the 4-20mA temperature sensor
(TW420) for temperature staging in each zone. Two programmable output control relays are available for
auxiliary control such as humidity lockout. Emergency power operation input provided for device control
during an emergency. Two common alarm relay outputs are available. A built-in LCD and RS-232 port for
direct PC/terminal connection provides two options for configuration and monitoring of the product.
The Liebert ENV-DO™interface card provides 16 discrete outputs, corresponding to status and major
alarm conditions of Environmental units. The Liebert ENV-DO-ENCL1 packages one Environmental DO
interface card in its own steel enclosure and the ENV-DO-ENCL2 packages two Environmental DO
interface cards in one enclosure for installation external to the Liebert Mini-Mate2™. The self-contained
kit includes an external 120VAC-to-24VAC power transformer. Wiring harnesses are not provided. Power
and communication wiring is field-provided.
The Liebert Liqui-tect®410 Point Leak Detection Sensor detects the presence of conductive liquid using
a pair of corrosion-resistant, gold-plated probes mounted in a painted, height-adjustable enclosure. Dual
Form-C, dry contact common alarm relays (rated at 24VAC, 3A) signal a leak detected as well as loss of
power and cable fault. The Liebert Liqui-tect 410 requires an external 24VAC or 24VDC power source.
Liebert LT460 Zone Leak Detection Kits include one LT460 sensor, a specified length of LT500-xxY
cable (maximum length is 100 ft [30.5m]) and a corresponding number of hold-down clips. The Liebert
LT460 requires an external 24VAC, 0.12A power source, such as EXT-XFMR or XFMR24.
Liebert SiteScan® is a monitoring solution that gives you decision-making power to effectively manage
the equipment critical to your business.
Liebert SiteScan enables communication from Liebert environmental and power units, as well as many
other pieces of analog or digital equipment, to a front-end software package that provides real-time
status and alarms so you can react quickly to changing situations.
Liebert SiteScan is designed with flexibility for both small systems and large, complex systems such as
those in computer rooms, telecommunications facilities or industrial process control rooms. Contact your
local Vertiv™ representative for assistance with a Liebert SiteScan system.
The NIC-ENCL1 and NIC-ENCL2 package one or two Liebert IntelliSlot® Web/485 Cards with Adapters,
respectively, in one steel enclosure for installation external to the Liebert Mini-Mate2. The Liebert
IntelliSlot Web/485 Card with Adapter provides communication with Liebert Mini-Mate2 via SNMP, HTTP,
RTU Modbus 485 and BACnet IP. The self-contained kit includes an external 120VAC-to-24VAC
transformer as a power source. Wiring harnesses are not provided. Power and communication wiring is
field-provided.
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5 FLEXIBLE CONFIGURATIONS
Figure 5.1 Air-cooled condensing units—split systems
Figure 5.2 Water/glycol condensing units—split systems
Figure 5.3 Chilled water units
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6 AIR-COOLED SYSTEMS—CAPACITIES AND DIMENSIONS
Evaporator Model MMD24E or MMD24K MMD36E or MMD36K
Condensing Unit Type PFH - Outdoor MCD - Indoor PFH - Outdoor MCD - Indoor
DX Evaporator- Net Capacity Data - kW (Btuh) @ High Speed CFM
80°F DB, 62.8°F WB (26.7°C
DB, 17.1°C WB) 38%RH
Total 6.70 (22,900) 6.50 (22,200) 9.90 (33,800) 9.35 (31,900)
Sensible 6.50 (22,200) 6.35 (21,700) 9.40 (32,100) 9.10 (31,000)
75°F DB, 61°F WB (23.9°C
DB, 16.1°C WB) 45%RH
Total 6.40 (21,800) 6.15 (20,900) 9.55 (32,500) 8.95 (30,600)
Sensible 5.70 (19,500) 5.60 (19,100) 8.30 (28,400) 8.05 (27,500)
72°F DB, 60°F WB (22.2°C
DB, 15.5°C WB) 50%RH
Total 6.20 (21,200) 5.95 (20,300) 9.30 (31,800) 8.75 (29,900)
Sensible 5.20 (17,800) 5.10 (17,400) 7.70 (26,200) 7.40 (25,300)
Fan Data - Evaporator
CFM (CMH) - High Speed 885 (1504) 1250 (2124)
CFM (CMH) - Low Speed 800 (1359) 1000 (1699)
Fan Motor, HP (W) 0.5 (0.38) 0.5 (0.38)
External Static Pressure, in (mm) water gauge 0.3 (8) 0.3 (8)
Evaporator Coil - Copper Tube/Aluminum Fin
Face Area, ft2(m2) 3.1 (0.29) 3.1 (0.29)
Coil Rows 3 3
Max Face Velocity ,fpm(m/s) 277 (1.4) 394 (2.0)
Unit Refrigerant Charge, oz. (kg) 7 (0.20) 7 (0.20)
Unit Operating Weight 225 (102) 225 (102)
Electric Reheat Capacity (Includes Fan Motor), kW
(Btuh) Standard SCR Standard SCR
Input Voltage 208-1-60 4.7 (16040) 5.6 (19100) 4.7 (16040) 7.9 (27000)
Input Voltage 230-1-60 5.8 (19800) 6.8 (23200) 5.8 (19800) 9.5 (32400)
Input Voltage 277-1-60 6.3 (21500) 7.3 (24900) 6.3 (21500) 10.3 (35200)
Input Voltage 208-3-60
N/A
5.6 (19100) 7.9 (27000)
Input Voltage 230-3-60 6.8 (23200) 9.5 (32400)
Input Voltage 460-3-60 7.3 (24900) 10.3 (35200)
Humidifier Data - Steam Generator Type
Steam capacity, lb/hr (kg/hr) 4.3 (2.0) 4.3 (2.0)
Electrical Input Power, kW 1.5 1.5
Evaporator Connection Sizes
Liquid line Diameter - Aeroquip Coupling Size 3/8" - #6 Female 3/8" - #6 Female
Suction Line Diameter - Aeroquip Coupling Size 7/8" - #11 Female 7/8" - #11 Female
Humidfier Supply 1/4" OD Copper Compression Fitting
Evaporator/Condensate Drain 3/4" NPT-Female
MERV 8 Filter, External Filter Box, qty (1), Nom. Size,
in. (mm) 4x20x20 (102x508x508)
Table 6.1 Air-cooled data, 60Hz
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Evaporator Model MMD24E or MMD24K MMD36E or MMD36K
Condensing Unit Type PFH - Outdoor MCD - Indoor PFH - Outdoor MCD - Indoor
MERV 8 Filter, Air Distribution Plenum, qty (1), Nom.
Size-in. (mm) 4x16x25 (102x406x635)
Condensing Unit Model Number PFH027A-_L7 MCD24AL_H7 PFH037A-_L7 MCD36AL_H7
Condensing Unit Rating Conditions 95°F (35°C) Ambient
Coil Face Area ft2(m2) 4.1 (0.38) 4.6 (0.43) 7.7 (0.72) 4.6 (0.43)
Rows of Coil 2 2 2 3
CFM (CMH) 2200 (3738) 1000 (1698) 3000 (5097) 1430 (2429)
Motor Hp (W) 0.20 (149) 0.33 (246) 0.20 (149) 0.5 (373)
External Static Pressure, in wg. (mm) N/A 0.50 (13) N/A 0.50 (13)
Unit Refrigerant Charge, oz. (kg) 134 (3.8) 134 (3.8) 213 (6.0) 213 (6.0)
Unit Operating Weight, lb. (kg) 200 (91) 230 (104) 241 (109) 240 (109)
Free-Cooling Coil Option Net Capacity Data - kW (Btuh) using 45°F EWT
80°F DB, 62.8°F WB (26.7°C
DB, 17.1°C WB) 38%RH
Total 7.10 (24,200) 9.50 (32,400)
Sensible 6.60 (22,600) 9.05 (30,800)
75°F DB, 61°F WB (23.9°C
DB, 16.1°C WB) 45%RH
Total 6.15 (20,900) 8.20 (28,000)
Sensible 5.55 (18,900) 7.60 (25,900)
72°F DB, 60°F WB (22.2°C
DB, 15.5°C WB) 50%RH
Total 5.55 (18,900) 7.45 (25,400)
Sensible 4.85 (16,600) 6.70 (22,900)
Flow Rate, GPM (l/m) 4.5 (17.1) 5.9 (22.4)
Pressure Drop, ft. water (kPa) 5.6 (16.7) 9.1 (27.2)
Free-Cooling Coil - Copper Tube/Aluminum Fin
Face Area, ft2(m2) 3.1 (0.28) 3.1 (0.28)
Coil Rows 3 3
Max Face Velocity, fpm (m/s) 294 (1.5) 294 (1.5)
Internal Fluid Volume, gal (l) 2.0 (7.6) 2.0 (7.6)
Water supply/return connections, in (mm) OD 7/8 (22.2) 7/8 (22.2)
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%.
Table 6.1 Air-cooled data, 60Hz (continued)
Evaporator Model MMD35E or MMD35K
Condensing Unit Type PFH - Outdoor MCD - Indoor
DX Evaporator- Net Capacity Data - kW (Btuh) @ High Speed CFM
80°F DB, 62.8°F WB (26.7°C DB,
17.1°C WB) 38%RH
Total 9.95 (34,000) 9.50 (32,400)
Sensible 9.40 (32,100) 9.15 (31,300)
Table 6.2 Air-cooled data, 50Hz
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Evaporator Model MMD35E or MMD35K
Condensing Unit Type PFH - Outdoor MCD - Indoor
75°F DB, 61°F WB (23.9°C DB,
16.1°C WB) 45%RH
Total 9.60 (32,700) 9.10 (31,100)
Sensible 8.35 (28,500) 8.15 (27,800)
72°F DB, 60°F WB (22.2°C DB,
15.5°C WB) 50%RH
Total 9.35 (31,900) 8.90 (30,400)
Sensible 7.70 (26,200) 7.45 (25,500)
Fan Data - Evaporator
CFM (CMH) - High Speed 1250 (2124)
CFM (CMH) - Low Speed 1000 (1699)
Fan Motor HP (W) 0.5 (0.38)
External Static Pressure, in (mm) water gauge 0.3 (8)
Evaporator Coil - Copper Tube/Aluminum Fin
Face Area, ft2(m2) 3.1 (0.29)
Coil Rows 3
Max Face Velocity, fmp (m/s) 394 (2.0)
Unit Refrigerant Charge, oz. (kg) 7 (0.20)
Unit Operating Weight, lb (kg) 225 (102)
Electric Reheat Capacity (Includes Fan Motor)-kW (Btuh)
Input Voltage 220-1-50 5.3 (18090)
Input Voltage 380-3-50 7.3 (24900)
SCR Reheat Capacity (Includes Fan Motor)-kW (Btuh)
Input Voltage 220-1-50 8.7 (29700)
Input Voltage 380-3-50 10.3 (35100)
Humidifier Data - Steam Generator Type
Steam capacity lb/hr (kg/hr) 4.3 (2.0)
Electrical Input Power, kW 1.5
Evaporator Connection Sizes
Liquid line Diameter - Aeroquip Coupling Size 3/8" - #6 Female
Suction Line Diameter - Aeroquip Coupling Size 7/8" - #11 Female
Humidifier Supply 1/4" OD Copper Compression Fitting
Evaporator/Condensate Drain 3/4" NPT-Female
MERV 8 Filter, External Filter Box, qty (1), Nom. Size, in. (mm) 4x20x20 (102x508x508)
MERV 8 Filter, Air Distribution Plenum, qty (1), Nom. Size, in. (mm) 4x16x25 (102x406x635)
Condensing Unit Model Number PFH036A-_L7 MCD35AL_H7
Condensing Unit Rating Conditions 95°F (35°C) Ambient
Coil Face Area, ft2(m2) 7.7 (0.72) 4.6 (0.43)
Rows of Coil 2 3
CMF (CMH) 2500 (4248) 1430 (2429)
Motor, Hp (W) 0.20 (149) 0.5 (373)
Table 6.2 Air-cooled data, 50Hz (continued)
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Evaporator Model MMD35E or MMD35K
Condensing Unit Type PFH - Outdoor MCD - Indoor
External Static Pressure, in. wg. (mm) N/A 0.50 (13)
Unit Refrigerant Charge, oz. (kg) 213 (6.0) 213 (6.0)
Unit Operating Weight, lb. (kg) 241 (109) 240 (109)
Free-Cooling Coil Option Net Capacity Data - kW (Btuh) using 45°F EWT
80°F DB, 62.8°F WB (26.7°C DB,
17.1°C WB) 38%RH
Total 9.50 (32,400)
Sensible 9.05 (30,800)
75°F DB, 61°F WB (23.9°C DB,
16.1°C WB) 45%RH
Total 8.20 (28,000)
Sensible 7.60 (25,900)
72°F DB, 60°F WB (22.2°C DB,
15.5°C WB) 50%RH
Total 7.45 (25,400)
Sensible 6.70 (22,900)
Flow Rate - GPM (l/m) 5.9 (22.4)
Pressure Drop - ft. water (kPa) 9.1 (27.2)
Free-Cooling Coil - Copper Tube/Aluminum Fin
Face Area ft2(m2) 3.1 (0.28)
Coil Rows 3
Max Face Velocity-fpm (m/s) 394 (2.0)
Internal Fluid Volume - gal (l) 2.0 (7.6)
Water supply and return connections, in (mm) OD 7/8 (22.2)
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%.
Table 6.2 Air-cooled data, 50Hz (continued)
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