Mitsubishi Electronics 20-L Air Conditioner User Manual


 
FEATURES
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High Sensible Cooling Capacity
The sensible cooling capacity has been significantly
improved through optimized heat exchanger design.
Comfort Heating
The PRH series are designed to provide effective heating
even when the outside temperature is down to 0˚C. The
PRH-L series are designed to provide effective heating
even when the outside temperature is down to -10˚C.In
addition, the twin circuit models, PRH-15,20YA,
PRH-15,20YA-L are provided with control features that
prevents both refrigeration circuits defrosting at the same
time. This ensures constant comfort conditions during
defrost and varying loads.
Highly Efficient Operation
The EER (Energy Efficiency Ratio) on these models is
greatly improved by revised design specifications and by
being manufactured stringently to Mitsubishi Electric
high quality standards.
Flexibility of Supply Air Delivery
All series feature belt driven Supply Air fans enabling
accurate matching of actual airflow rates to the specified
quantities. Accurate commissioning is assisted by the
capability to exchange pulleys and belts if necessary to
achieve the desired air balance.
Low Ambient Cooling
In applications with relatively high internal loads,
there may be a requirement for all series to operate
on cooling at low ambient conditions. An optional
accessory is available to maintain the refrigeration
circuit in balance at outdoor temperatures as low as
0˚C (PRH only).In case of PR,PRH-L is -5˚C.
Please consult your local Mitsubishi Electric Sales
office for application advice on this accessory.
Wide Electrical Control Capability
All series may be ordered in either of two control
configurations.
The factory standard is for provision of a 24 volt
terminal block to enable a field wired control of the
contractors choice to be connected.
Alternatively, for models PR-5-10YC,PRH-5-10YA,
PRH-5-10YA-L the intelligent "K" series remote
control system may be ordered. The K control
utilizes a microprocessor and includes liquid crystal
display with touch pad for adjustment of control
parameters.
These options give the flexibility to enable
connection to Building Management Systems,
smoke spill cycles, economy cycles, remote
monitoring etc.
Please consult your local Mitsubishi Electric Sales
office for application advice on these controls.
Labor Saving Installation
Because of the single unit configuration, all
refrigeration work can be omitted. The unit operation
can commence immediately after connection to the
power supply, drain piping, ducting and control
system.