DESCRIPTIONS
MITSUBISHI ELECTRIC Rooftop Air Conditioners Series PR,PRH,RPH-L are available in a wide range of sizes and models to enable the designer to select the best model for each application.
The complete range has been designed for outdoor installation, and the units are provided with the latest technological features to ensure economical, reliable and comfortable ducted type air conditioning.
All series units are completely assembled, wired and strictly tested at the factory. They consist of a
compressors, air-cooled condensers, evaporator fans, condenser fans and auxiliary and control equipment, completely packaged in a water-proof enclosure.
With the development of all series demands for such features as light weight, compactness, increased capacity, appropriate static pressure , air flow control, and having flexibility of inter-facing energy saving electronic controls Mitsubishi Electric have met market expectations.
MECHANICAL SPECIFICATIONS
General
All units are factory assembled, piped, internally wired and fully charged with R-22. They are also tested and checked under a strict quality control system in the factory. All units are designed for outdoor rooftop or ground level installation. Exterior surfaces of all units are phosphatized, zinc-coated steel with acrylic resin primer and ivory white baked enamel finish.
Condenser Coils
Unnecessary power input due to higher discharge pressure is avoided by high performance designs of cross-finned coils. Condenser coils are made of 9.52mm OD, 0.35mm thick seamless copper tubes mechanically bonded to 0.12mm thick aluminium plate fins. Each coil is factory pressure and leak tested at 3.3MPa.
Refrigeration Controls
Refrigeration controls include condenser fan, evaporator fan and compressor contactor. Each circuit of the unit has a separate set of refrigeration controls. PR, PRH,PRH-L-15,20 units have two independent circuits.
Evaporator Fans
Belt-drive, forward curved, centrifugal type fans made of galvanized steel are used to deliver an accurate airflow at low noise level.
Compressors
All units have high efficiency type hermetic line starting compressors. Compressors are equipped with thermal overload protector, overcurrent relay and high pressure protection controls. Crankcase heaters are standard .
Condenser Fan
This direct-drive propeller fan is dynamically balanced, to ensure smooth airflow. A weather- proof three-phase squirrel cage induction motor is used to drive the condenser fan.
Evaporator Coils
Highly efficient cross-finned coils are applied to provide a larger cooling capacity with low air speed on the coil. Coils are made of 9.52mm OD and 0.35mm thick seamless copper tubing mechanically bonded to 0.12mm thick aluminium fins and are factory leak tested at a pressure of 3.3MPa. They are provided with strainers attached to the capillary tubes to further ensure a clean system.
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Heat Pump
Data Book
Contents
For correct installation
Safety for USE
Do not wash the unit with water
Complete Line UP
High Sensible Cooling Capacity
Features
Descriptions
Mechanical Specifications
PRH PRH-L
Typical Installation Example
Gross
Specifications
Cooling
Electrical Data
Heating
PR-5YC PRH-5YA-L
Capacity Tables
Cooling Capacity Nominal Air FlowPR-5YC,PRH-5YA,PRH-5YA-L
Factor for Various Air Flow
Range PRH-5YA
Heating Capacity Nominal Air FlowPRH-5YA,PRH-5YA-L
PR-8YC PRH-8YA-L PRH-8YA
Cooling Capacity Nominal Air FlowPR-8YC,PRH-8YA,PRH-8YA-L
PR-8YC PRH-8YA-L
Heating Capacity Nominal Air FlowPRH-8YA,PRH-8YA-L
PRH-8YA
PR-10YC PRH-10YA-L PRH-10YA
Cooling Capacity Nominal Air FlowPR-10YC,PRH-10YA,PRH-10YA-L
PRH-10YA-L
Heating Capacity
PRH-10YA
PR-15YC PRH-15YA-L PRH-15YA
Cooling Capacity Nominal Air FlowPR-15YC,PRH-15YA,PRH-15YA-L
PRH-15YA
PR-15YC PRH-15YA-L
PR-20YC PRH-20YA-L PRH-20YA
Cooling Capacity Nominal Air FlowPR-20YC,PRH-20YA,PRH-20YA-L
PRH-20YA
PRH-20YA-L
PRH-YA-L
Operation range
PR-YC
PRH-YA
Rpm
FAN Performance
Operation range Fan speed
Pressure
Pulley outside dimensions are shown below Unit mm
PR-5YC PRH-5YA PRH-5YA-L PR-8YC PRH-8YA PRH-8YA-L
NC Curves
PR-15YC
PR-10YC
PR-20YC
Outline Dimensions
PR-15,20YC PRH-15, 20YA PRH-15, 20YA-L
PR-8,10YC PRH-8, 10YA PRH-8, 10YA-L
PR-5, 8, 10YC Standard
Wiring Diagrams
PR-15, 20YC Standard
Special Order K Control
PR-5, 8, 10YC
Internal Protector
Special Order LOW Temperature
PR-15, 20YC
50Hertz
Special Order K Control & LOW Temperature
PRH-5, 8, 10YA-L Standard
PRH-5, 8, 10YA
PRH-15, 20YA-L Standard
PRH-5, 8, 10YA PRH-5, 8, 10YA-L
10YA
PRH-15, 20YA PRH-15, 20YA-L
21S4 Way valve
MF1 Operate YES
Electrical Operation Flow Charts
MC Operate MF2 Operate OFF Safety Device OFF? YES
OFF 52C OFF MC Stop MF2 Stop RL on CH on Service Call
MF1 Operate
Start Power on
Start Power on
PR-5YC
Refrigerant Schematics
PR-8, 10, 15, 20YC
PRH-8, 10, 15, 20YA
PRH-8, 10,15,20YA-L
Accessory Availability
Safety & Control Devices
Electrical
Physical Data
Rooftop Package AIR Cooled Heatpump and Cooling only Units
Clearances
Installation
Roof Mounting
Drain piping
Duct Work
Final Checks
Electrical Wiring
Trial Operation
Check Points for Operation
Instructions for USE
Fingermarks
Maintenance
Preparing for Operation After Prolonged Shutdown
Troubleshooting
Preparing for Prolonged Shutdown
Specification Guidelines
Memo
Data Book PR,PRH
Mitsubishi Electric Corporation