CardioQuip MCH-1000 Operators & Service Manual page 33

CardioQuip Modular Cooler-Heater Operator/Service Manual
WARNING: Ensure that airflow from the MCH
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Refrigeration Module does not violate the sterile field.
The Refrigeration Module employs a low-airflow heat
exchanger that is designed to function safely and
efficiently within the airflow pattern of a standards-
compliant Surgical Ventilation System, when positioned
as shown in the diagram at right. The MCH should be
positioned at least 6ft (2m) from the patient, with the rear-
panel water connectors pointing either directly toward, or
directly away from, the patient. In this position, the
Refrigeration Module exhaust air flows parallel to the
operating table. Optional exhaust hoods may be installed
to redirect the exhaust downward (contact CardioQuip for
more information). During certain procedures—e.g., with
a substandard surgical ventilation system, or with
immunocompromised or infectious patients—it may be
desirable to power off the Refrigeration Module, to avoid
any risk of circulating airborne contaminants that may be
present in the room.
CAUTION: Do not plug the Refrigeration Module into the same electrical circuit
!
as the MCH-1000(i). The Refrigeration Module draws approximately 1.5 Amps of
power, so it may be able to share a circuit with other equipment. The MCH-1000(i)
requires a separate dedicated 20 Amp circuit (see Initial Operation Check).
CAUTION: Do not damage the chiller plates or temperature probe. Bending or
!
twisting the plates or probe can cause premature failure of the Refrigeration Module.
CAUTION: Always keep the Refrigeration Module upright. Setting the module on
!
its top or sides can damage the compressor.
CAUTION: The water tank should be at least 1/2 full of water when using the
!
Refrigeration Module. If the water depth in the tank is too low, the Refrigeration
Module will be unable to produce enough ice for normal device operation, and
compressor damage could result.
CAUTION: Do not block the air vents around the sides of the Refrigeration
!
Module. Inadequate airflow will cause overheating and premature failure of the
Refrigeration Module.
CAUTION: Do not operate the Refrigeration Module with the hinged cover open.
!
An open cover inhibits cooling airflow into the unit, and may allow aerosolization of
water-borne pathogens that could be present in the water tank.
Page 31
Patient
6ft (2m)
MCH
Airflow Airflow