Spec Sheet
Table Of Contents
2 Specifications subject to change without notice. 38MHRC-01PD
Inverter Technology
The inverter driven compressor is designed to run at various input
power frequencies (Hz) which controls the compressor’s motor speed.
Even Temperature – The control package, including the inverter,
monitors the outdoor and indoor temperatures as they relate to the
selected indoor set point and adjusts the compressor speed to match
the load and keep the system operating continuously rather than
cycling and creating temperature swings. This translates to higher
comfort levels for the occupants.
Rapid Pull Down/Warm-Up – Comfort is increased by the inverter
system’s ability to ramp up the compressor speed enabling the system
to reach the user selected room temperature set point quicker.
Humidity Control – Running the system for longer periods and
continuously varying the compressor speed enhances the humidity
control.
Individual Room Comfort
Maximum comfort is provided because each space can be controlled
individually based on the usage pattern.
Low Sound Levels
When noise is a concern, ductless systems are the answer. The indoor
units are whisper quiet. There are no compressors indoors, either in
the conditioned space or directly over it, and there is none of the noise
usually generated by air being forced through the ductwork.
When sound ordinances and proximity to neighbors demand quiet
operation, the 38MHRCQ unit is the right choice. With the inverter
technology, these units run at lower speeds most of the time resulting
in reduced sound levels.
Inverter Technology – Enhanced Economical
Operation
Ductless systems are inherently economical to operate. Individual
rooms are heated or cooled only when required, and since the air is
delivered directly to the space, there is no need to use additional
energy to move the air in the ductwork. This economical operation
is enhanced further when the inverter system output matches the load
resulting in a more efficient system.
Easy-To-Use Controls
The systems have microprocessor-based controls to provide the
ultimate in comfort and efficiency. The user friendly wired and
wireless remote controls provide the interface between the user and
the unit.
Secure Operation
If security is an issue, outdoor and indoor units are connected only by
refrigerant piping and wiring to prevent intruders from crawling
through ductwork or wall openings. In addition, since the 38MHRCQ
can be installed close to an outside wall, coils are protected from
vandals and severe weather.
Fast Installation
This compact ductless system is simple to install. Only wires and
piping need to run between the indoor and outdoor units. These units
are fast and easy to install ensuring minimal disruption to customers in
homes or the workplace. This makes the 38MHRCQ systems the
equipment of choice for retrofit applications.
Simple Servicing and Maintenance
Removing the top panel of the outdoor unit provides immediate access
to the control compartment, providing the service technician access to
the diagnostic LEDs to facilitate the troubleshooting process. In
addition, the draw-thru design of the outdoor unit means that dirt
accumulates on the outside surface of the coil. Coils can be cleaned
quickly from the inside using a pressure hose and detergent.
On the indoor units, service and maintenance expense is reduced
due to the permanent easy to clean filters. Also, error codes are
displayed on the front panel to alert the user to certain system
malfunctions.
Built-in Reliability
Ductless system indoor and outdoor units are designed to provide
years of trouble-free operation. Both the indoor and outdoor units are
well protected. Whenever the microprocessor detects abnormal
conditions, the unit stops and an error code appears.
Inverter systems provide additional reliability due to the soft start.
This refers to the ability of the inverter to start the compressor motor
using reduced voltage and reduced current. This feature is beneficial
from an electrical standpoint (eliminates current spikes) as well as an
overall reliability standpoint due to reduced stress on all associated
system components.
Agency Listings
All systems are listed with AHRI (Air conditioning, Heating, and
Refrigeration Institute) and are UL certified per UL 60335-2-40 stan-
dard.