CardioQuip MCH-1000 User manual

CardioQuip Modular Cooler Heater
Operator/Service
Manual
Model MCH-1000
Cardiopulmonary Bypass
Temperature Controller
P/N 1000-05-1177
Publication date: November 30, 2016
© Copyright 2016 CardioQuip, LP. All rights reserved.!

Document Change Tracking
Date
Change
By
Approval
4/8/09
Original version
JLG
DEP
5/4/10
Added disposal procedures for standards compliance
JLG
DEP
3/21/12
Updated to R2, added MCH-1000(m) information
JLG
DEP
3/27/14
Added Cardioplegia Shared Channel (CSC) Module information
JLG
DEP
8/1/14
Updated maintenance procedures
JLG
DEP
11/4/14
Added Thermo-Electric Cooling (TEC) Module information
JLG
DEP
6/15/15
Added part number and revision
JLG
DEP
6/24/15
IEC 60601-1 compliance-related edits
JLG
DEP
9/3/15
Added necessary warnings/cautions for EMC compliance
Added Refrigeration Module information
Corrected leakage current specification
JLG
DEP
2/17/16
Improved & expanded cleaning procedures for clarity
Added patient blanket section
Other IEC 60601-1-2:2014 compliance updates
JLG
DEP
5/5/16
Added additional information on Refrigeration Module & hose kits
Improved overall document formatting
Updated indications for use, alarm sound pressure range
specification, disinfectant information (added residual levels)
Added airflow-related cautions & specifications
JLG
DEP
9/28/16
Fixed discrepancy in bleach concentration specifications
JLG
DEP
11/30/16
Updated warranty text
JLG
DEP

CardioQuip Modular Cooler-Heater Operator/Service Manual Page 1
CardioQuip Modular Cooler Heater
Operator/Service Manual
Model MCH-1000
Cardiopulmonary Bypass
Temperature Controller
Notices
The information in this document may change without notice. CardioQuip makes no
warranty of any kind regarding this material including, but not limited to, the implied
warranty of merchantability and fitness for a particular purpose. CardioQuip cannot be
held liable for errors herein or for consequential damages concerning the use of this
material.
CardioQuip reserves the right to make equipment changes and improvements which may
not be reflected in this manual. Online support resources, including the latest version of
this manual, may be accessed at http://www.cardioquip.com/MCH/Support.html.
This document may not be reproduced in whole or in part, as it contains proprietary
information. Such information may not be disclosed to others for any purpose or used for
manufacturing purposes without written permission from CardioQuip. Reproduction or
storage of this material in electronic media without the express written permission of
CardioQuip is prohibited.
Manufacturer’s Responsibility
CardioQuip may consider itself responsible for any effect on the safety, reliability and
performance of the equipment if and only if:
• Repairs, adjustments, modifications or retrofit are performed by authorized
CardioQuip service personnel
• The device is used according to the instructions set forth in this manual
• The electrical service and connections comply with relevant electrical codes
For assistance, call 888-267-6700 (in the U.S.) or [phone] (international).
© Copyright 2016 CardioQuip, LP. All rights reserved.!

Page CardioQuip Modular Cooler-Heater Operator/Service Manual2
Table of Contents
General Information 4...................................................................................................
Introduction 4..................................................................................................................
Indications for Use 4.......................................................................................................
Expected Service Life 4....................................................................................................
Warnings and Precautions 5............................................................................................
Manual Conventions 6.....................................................................................................
Device Labeling 6............................................................................................................
Specifications 7................................................................................................................
Obtaining Service 7.........................................................................................................
Contact Information 7.....................................................................................................
Limited Warranty 8..........................................................................................................
Storage 9..........................................................................................................................
Transportation 9..............................................................................................................
Lifting 9...........................................................................................................................
Overview 10....................................................................................................................
MCH-1000(i) Hardware Overview 10.............................................................................
MCH-1000(m) Hardware Overview 11...........................................................................
Operation Overview 11....................................................................................................
Add Ice! 11.......................................................................................................................
Control Screens 12..........................................................................................................
Note: When the Refrigeration Module is installed, the tank should be filled to the tops of
the chiller plates. 12........................................................................................................
System Test 13..................................................................................................................
Standby 14.......................................................................................................................
Priming 15.......................................................................................................................
Settings 16........................................................................................................................
Run 17..............................................................................................................................
Alarms 18........................................................................................................................
Low Water Level (medium priority) 18............................................................................
Low Ice (low priority) 19.................................................................................................
Overtemp (medium priority) 19.......................................................................................
System Failure (medium priority) 20...............................................................................
Audio Silence 20..............................................................................................................
Setting the Temperature 21...........................................................................................
Connectors, Valves, & Hoses 22....................................................................................
Main Hose Connectors 22...............................................................................................
Cardioplegia Hose Connectors 23..................................................................................
Internal Recirculation Valve 23.......................................................................................
Blanket Hose Connectors 24...........................................................................................
System Drain 25...............................................................................................................
Tank Drain 25..................................................................................................................

CardioQuip Modular Cooler-Heater Operator/Service Manual Page 3
Hose Kits 26....................................................................................................................
Standard Hose Kit 26............................................................................................................
Dripless Anti-Microbial Hose Kit 26....................................................................................
Custom Hose Kits 26.............................................................................................................
Tank Lid Anchor Knobs 27..............................................................................................
Patient Blankets 27.........................................................................................................
Optional Cooling Modules 29........................................................................................
Thermo-Electric Cooling (TEC) Module 29....................................................................
Installation 29........................................................................................................................
Maintenance 29.....................................................................................................................
Refrigeration Module 30.................................................................................................
Installation 30........................................................................................................................
Operation 30..........................................................................................................................
Maintenance 30.....................................................................................................................
Storage 30..............................................................................................................................
MCH Operation 32.........................................................................................................
Unpacking 32...................................................................................................................
Physical Inspection 32.....................................................................................................
Initial Operation Check 32..............................................................................................
MCH-1000(i) Control Module Check 33..............................................................................
Basic Function Test 34..........................................................................................................
Temperature Control System Test 34....................................................................................
Alarm Tests 34.......................................................................................................................
Terminating Operation 35.....................................................................................................
Leakage Current Test 35........................................................................................................
Initial Cleaning 35.................................................................................................................
Normal Operation 36......................................................................................................
High Temperature Alarm 38............................................................................................
A Note About Flow 38......................................................................................................
Maintenance 39...............................................................................................................
Water Quality 39..............................................................................................................
Disinfectants and Cleaners 39.........................................................................................
After Every Use 40...........................................................................................................
Weekly 40.........................................................................................................................
Quarterly 40....................................................................................................................
Annually 41......................................................................................................................
Disposal Procedures 41...................................................................................................
Troubleshooting 42.........................................................................................................
Wiring Schematics 44......................................................................................................
Annual Preventive Maintenance Checklist 46.............................................................

Page CardioQuip Modular Cooler-Heater Operator/Service Manual4
General Information
Introduction
The CardioQuip Modular Cooler-Heater (MCH) brings easy and accurate temperature control to
the operating room. The latest touchscreen technology offers fast, user-friendly, multi-language
device control. Redundant software and hardware failsafes ensure patient safety. A combination
of audible and visual alerts enable effective monitoring without undue distraction. Conscientious
design declutters the perfusionist’s work area to allow more workspace. Thanks to intelligent
features such as self priming, automatic defrost, and patent-pending Adaptive Temperature
Control™ technology, the MCH requires significantly less operator intervention than traditional
cooler-heaters, giving the perfusionist more time for patient care.
Indications for Use
The CardioQuip Modular Cooler-Heater (MCH) is indicated to supply temperature-controlled
water to heat exchange devices (e.g.; Cardiopulmonary Bypass Heat Exchangers) to help control
a patient’s temperature during extracorporeal circulatory support and/or thermal regulation
procedures lasting not longer than six hours.
The MCH is intended to be operated by, or under the supervision of, a qualified perfusionist.
This device is not designed, sold or intended for use except as indicated. While there are no
known contraindications, use of the MCH for purposes other than those indicated places
responsibility for performance and results with the user.
Expected Service Life
The MCH, when properly maintained and operated according to these instructions, should
provide at least ten years of reliable service in a typical hospital environment.

CardioQuip Modular Cooler-Heater Operator/Service Manual Page 5
Warnings and Precautions
➡WARNING: To avoid the risk of electrical shock, this equipment must only be connected to a supply
mains with protective earth.
➡WARNING: Use of this equipment adjacent to or stacked with other equipment should be avoided
because it could result in improper operation. If such use is necessary, this equipment and the other
equipment should be observed to verify that they are operating normally.
➡WARNING: Portable RF communications equipment (including peripherals such as antenna cables
and external antennas) should be used no closer than 30 cm (12 inches) to any part of the MCH.
Otherwise, degradation of the performance of this equipment could result.
➡Read this complete Operator’s Manual before using this device.
➡No modification of this equipment is allowed.
➡Explosion Hazard. Do not use in the presence of flammable anesthetics.
➡Electric Shock Hazard. Access panels should be removed only by qualified service personnel.
➡Use a dedicated 20 Ampere AC “Hospital Grade” grounded (protectively earthed) outlet for the MCH.
➡This equipment is designed to function properly in the presence of radio frequencies typically
encountered in a hospital operating room environment. Some RF communications equipment can
affect medical electrical equipment. The operator should assure that this equipment functions properly
in the specific environment in which it will be used.
➡The MCH is not fully automatic. Monitoring of patient temperature and rate of temperature change
remains the responsibility of the operator.
➡If the unit is in an over-temperature condition and the emergency cool system is used, it is crucial that
the operator monitor the output water temperature.
➡It is the operator’s responsibility to use and maintain this device according to the labels of the product,
accompanying instruction manuals, and any revisions of the labeling or instructions that may be
subsequently issued.
➡Proper surgical procedures and techniques are the responsibility of the operator.
➡The servicing of this unit should be performed by qualified medical equipment service personnel.
Improper repair can result in patient injury and/or damage to the system.
➡This device must not be connected to a heat exchanger or blanket with a manufacturer recommended
maximum pressure rating of less than 83 kPa (<12 psi). Rupture or leakage may occur in the heat
exchanger, resulting in patient injury and/or damage to the system.
➡This device must be disconnected from the power source before inspecting, cleaning or preparing this
device for use.
➡The MCH must be properly cleaned prior to operation or storage to prevent high microbial count or
residual chemicals that could cause equipment damage.
➡During clinical operations, do not drain equipment connected to the MCH. Draining attached
equipment will drain the entire heat exchanger network.
➡U.S. law restricts this device for sale to, or use by or on the order of, a licensed physician.
➡Do not operate the system with less than 4 inches (10cm) of water in the ice tank, or completely drain
the system while in an operating mode. Dry operation will cause equipment damage.
➡The cold water tank should remain covered to prevent debris from entering the system or water vapor
from escaping, and to minimize the loss of ice temperature.
➡Do not use acetone-based cleaning solutions to clean the unit. Acetone-based cleaning solutions will
cause equipment damage.
➡Use only Hospital-Approved Bactericidal Agents which are non-acidic and non-foaming. Operation
with unapproved agents may cause equipment damage.
➡Do not use sharp objects to adjust or select switches on the control panel.

Page CardioQuip Modular Cooler-Heater Operator/Service Manual6
Manual Conventions
This Operator’s Manual uses the international alert symbol !to indicate critical safety and
operational information. The alert symbol followed by a WA RNING denotes an instruction or
procedure which, if not carried out correctly, may result in injury to the technician, the patient or
other personnel. The alert symbol followed by a CAUTION denotes an instruction or procedure
which, if not carried out correctly, may damage the MCH or connected equipment.
Device Labeling
This symbol indicates that the device is Type BF medical equipment per IEC601.1
This symbol indicates that conductors carrying high voltage are nearby.
This symbol indicates that consultation of documentation is critical to safe operation.
This symbol indicates that the device requires an alternating supply current.
This symbol is located near chassis grounding locations to indicate protective earth ground.
This symbol indicates manufacturer information.
This symbol indicates the connection point for the Control Unit.
This diagram shows the operation of the tank and system drains.
This symbol indicates the mains power switch for the refrigeration system.
!
!
!
!
!
!
!
!
!

CardioQuip Modular Cooler-Heater Operator/Service Manual Page 7
Specifications
Obtaining Service
Contact CardioQuip with questions on parts, servicing or returning merchandise. Please make
sure the unit’s model and serial number are available prior to contacting service personnel. If you
are experiencing problems with your unit, the service representative will assist you in corrective
procedures or in returning the merchandise. Upon request, CardioQuip will make available
circuit diagrams, component part lists, descriptions, calibration instructions, or other information
which will assist appropriately qualified technical personnel to troubleshoot or repair parts of the
equipment that CardioQuip determines to be field repairable. Replacement of internal electrical
components should be performed only by CardioQuip service personnel.
Contact Information
Dimensions (LxWxH)
MCH-1000(i): 26x16x35 in (66x42x89 cm)
MCH-1000(m): 19x9x16 in (48x23x42 cm)
Weight (empty/full/max)
MCH-1000(i): 85 lbs (39 kg) / 165 lbs (75 kg) / 258 lbs (117 kg)
MCH-1000(m): 45 lbs (21 kg) / 65 lbs (30 kg) / 76 lbs (34 kg)
Water capacity
MCH-1000(i): Min 3 gal. (12 L), Max 9 gal. (36 L)
MCH-1000(m): Min 1 gal. (3.8 L), Max 2.5 gal. (9.5 L)
Water Connections
Quick-connect, no-spill two-way shutoff fittings.
Tank drain accepts standard garden hose (GHT) fitting.
Maximum flow rate (high/low)
20 / 14 LPM (5.3 / 3.7 GPM)
Maximum pressure
83 kPa / 12 psi (closed loop, blocked flow)
Electrical
115VAC / 60Hz, 16A (Class 1 equipment per UL 544)
230VAC / 50Hz, 9A (Class 1, Type BF equipment per UL 2601-1)
Temperature control (℃)
Range 0.0 - 42.0, Accuracy ±0.5, Setting 0.1
Alarm sound pressure range (dB)
41 - 58
Induced airflow (ft3/min)
<50 (base) / <100 (TEC Module) / < 300 (Refrigeration Module)
Operating environment
5 - 40℃, 0 - 90% humidity
Power consumption (W)
Max Peak 1900, Typ < 1740
Ground resistance (Ω)
Max 0.1
Leakage current (µA)
< 100
EMC compliance
CISPR 11:2009+A1:2010, IEC 61000-3-2:2005/A1:2008/A2:2009,
IEC 61000-3-3:2013, IEC 60601-1-2:2014
CardioQuip, LP
3827 Old College Road • Bryan, Texas 77801
USA
Tel: [phone] • Fax: [phone]
Email: [email protected]
Internet: www.cardioquip.com

Page CardioQuip Modular Cooler-Heater Operator/Service Manual8
Limited Warranty
A. This LIMITED WARRANTY provides the following assurance to the purchaser of the CardioQuip
MCH-1000 Series Cooler-Heater System, hereafter referred to as the “Equipment”:
(1) Should the Equipment fail to function within normal tolerances due to a defect in materials or
workmanship within a period of one (1) year, commencing with the delivery of the Equipment to
the purchaser, CardioQuip will at its option:
(a) repair or replace any defective part or parts of the Equipment;
(b) issue a credit to the purchaser equal to the Purchase Price, as defined in Subsection A(2),
against the purchase of the replacement Equipment; or
(c) provide a functionally comparable replacement Equipment at no charge.
(2) As used herein, Purchase Price shall mean the lesser of the net invoiced price of the original, or
current functionally comparable, or replacement Equipment.
B. To qualify for this repair, replacement or credit set forth in Section A, the following conditions must
be met:
(1) The Equipment must be returned to CardioQuip within thirty (30) days after discovery of the
defect. CardioQuip may, at its option, repair the Equipment on site.
(2) The Equipment must not have been repaired or altered outside of CardioQuip's factory in any way
which, in the judgment of CardioQuip, affects its stability and reliability. The Equipment must not
have been subjected to misuse, abuse or accident.
(3) The Equipment must not have been shipped by commercial carrier beyond the point of
CardioQuip’s initial shipment.
C. This LIMITED WARRANTY is limited to its express terms. In particular:
(1) Except as expressly provided by this LIMITED WARRANTY, CARDIOQUIP IS NOT
RESPONSIBLE FOR ANY DIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES
BASED ON ANY DEFECT, FAILURE OR MALFUNCTION OF THE EQUIPMENT,
WHETHER THE CLAIM IS BASED ON WARRANTY, CONTRACT, TORT, OR
OTHERWISE.
(2) This LIMITED WARRANTY is made only to the purchaser of the Equipment. AS TO ALL
OTHERS, CARDIOQUIP MAKES NO WARRANTY, EXPRESS OR IMPLIED, INCLUDING,
BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY, OR
FITNESS FOR A PARTICULAR PURPOSE WHETHER ARISING FROM STATUTE,
COMMON LAW, CUSTOM OR OTHERWISE. NO EXPRESS OR IMPLIED WARRANTY TO
THE PATIENT SHALL EXTEND BEYOND THE PERIOD SPECIFIED IN A(l) ABOVE. THIS
LIMITED WARRANTY SHALL BE THE EXCLUSIVE REMEDY AVAILABLE TO ANY
PERSON.
(3) The exclusions and limitations set out above are not intended to, and should not be construed so
as to contravene mandatory provisions of applicable law. If any part or term of this LIMITED
WARRANTY is held to be illegal, unenforceable or in conflict with applicable law by a court of
competent jurisdiction, the validity of the remaining portions of the LIMITED WARRANTY shall
not be affected, and all rights and obligations shall be construed and enforced as if this LIMITED
WARRANTY did not contain the particular part or term held to be invalid. This LIMITED
WARRANTY gives the purchaser specific legal rights. The purchaser may also have other rights
which vary from state to state.
(4) No person has any authority to bind CardioQuip to any representation, condition or warranty
except this LIMITED WARRANTY.

CardioQuip Modular Cooler-Heater Operator/Service Manual Page 9
Storage
If the MCH is to be stored for more than seven (7) days, ensure that the unit is drained and
cleaned per the Weekly cleaning procedure listed under the Maintenance section. The system can
be safely stored after performing this procedure. Always store the system drained and dry. The
MCH should be stored in an environment where the temperature range is within 0°–43°C (32°–
100°F), and the relative humidity is less than 95%.
Transportation
The MCH should be transported in either the original carton, or an equivalent carton, to prevent
damage during shipment. If the unit has been in contact with blood, blood components, or body
fluids, it must be thoroughly cleaned and disinfected before packing. The MCH should not be
exposed to environmental conditions outside of those listed in the Storage section.
Lifting
The MCH-1000(i) should be lifted by no fewer than 2 persons, and should be drained prior to
being lifted. Use proper lifting techniques to avoid injury. The lift points are located at each of
the four corners. The lifters’ hands should be wrapped tightly around the wheelbase frame
projections at each corner. For short lifts (e.g., assisting the MCH over low obstacles such as
cords or thresholds ≥10mm), the convenience handles may be used with care. Facing the MCH,
with your back to the obstacle, grasp the handle with both hands, with an underhand grasp, and
lift upward on the handle while pulling the MCH toward you, over the obstacle.
CAUTION: Do not lift the MCH by the drain or water/hose connections. Lifting
by these connectors will cause equipment damage.
!

Page CardioQuip Modular Cooler-Heater Operator/Service Manual10
Overview
In order to enjoy the greatest reliability from your MCH, please familiarize yourself with the
essential parts and basic function of the device.
MCH-1000(i) Hardware Overview
Control Unit
Cold Water Tank Cover
Control Unit Clamp
Tank Drain
Control Unit Connector
Mains Power Switch
AC Power Cord
Dual-Lock Casters
Main Hose Connectors
Recirculation Valve
Blanket Hose Connectors
!
!
MCH Basic Water Path
!
Cold Water Tank
Heater
Chamber
Pump
IN
OUT
Internal
Recirc
Valve
Cooling
Valve
Tank Drain
System
Drain

CardioQuip Modular Cooler-Heater Operator/Service Manual Page 11
MCH-1000(m) Hardware Overview
Operation Overview
The MCH operating software serves two basic functions. First, it provides an intuitive, feature-
rich touchscreen control interface, giving the operator quick access to temperature settings, pump
speed control, system test and status information, and customization features. Second, it
constantly monitors the MCH’s internal systems to ensure that the hardware is functioning
properly. An alarm will sound within seconds of any operational problem, alerting the operator to
the issue.
The operator controls the MCH using an LCD touchscreen display, using four basic modes. In
TESTING mode (which is run automatically when the system is powered on), the MCH tests all
internal relays and displays the results to the operator in a simple pass/fail format. In STANDBY
mode, the system is idle, awaiting operator input. In PRIMING mode, the MCH operates the
pump and valve to remove air from the tubing lines. In RUN mode, the device circulates the
water through the cold water tank and the heater chamber as necessary to maintain the
circulating water at the operator-selected temperature.
The MCH is designed with EMI protection to operate effectively with minimal interference from
other nearby equipment. It is shielded so that electronic noise generated within its enclosure will
not affect operation of other equipment in use in the same area as the MCH.
Add Ice!
The MCH uses ice-based cooling and has a valved, insulated cold water tank that is able to retain
cold water for a considerable length of time. For procedures that do not require extensive
cooling, the MCH will operate safely and effectively with room-temperature water in the tank;
however, the temperature control algorithms are optimized for the use of ice water. The MCH
will operate more efficiently with cold water (0-10˚C) in the tank.!
Cold Water Tank Lid
Lid Anchor Knob
Control Screen
Mains Power Switch
Main Hose Connectors
System Drain Connector
Mains Power Cord
!
!

Page CardioQuip Modular Cooler-Heater Operator/Service Manual12
Control Screens
Note: When the Refrigeration Module is installed, the tank should be filled to the tops of the
chiller plates.!
Power-on
When the Mains Power Switch is first turned
on, the CardioQuip logo will appear on the
Control Unit screen along with the text,
“Initializing...” to indicate that the MCH is
booting. After approximately five seconds, the
MCH will enter operational mode. If this
screen remains active for more than a few
seconds, check the connection between the
Control Unit and the Main Unit.
Water Level
The water tank must contain at least four
inches (10 cm) of water for basic operation. If
at any time the tank water level drops below
safe operating level, the Control Unit screen
will display the Low Water warning screen
shown at right. An audible alarm will sound a
two-beep pattern at 20 second intervals. The
alarm may be silenced for 60 seconds by
touching the Alarm Silence icon at the bottom
left corner of the screen.
!
!
CAUTION: Operating the MCH without water will cause equipment damage.
!

CardioQuip Modular Cooler-Heater Operator/Service Manual Page 13
System Test
On startup, the MCH enters TESTING mode and runs a system test to verify proper operation of
all internal components. Onscreen indicator lamps display the status of control and feedback
signals for the various internal systems, and the “Test Status” column (far right) displays the test
results. If any test fails, its “Test Status” will display a red “X” symbol and the FAILURE screen
will appear (see the System Failure section). Touching the “Retry” button will retry the system
test. The MCH will not enter operational mode if any internal system test fails.
Once the system test has successfully completed, the operator must press the “Standby” control
button to enter Standby mode.
CAUTION: At the end of a system test, the audible alarm will sound once. The
operator must verify that the alarm is audible within the operating environment.
!
This symbol is the Temperature Differential indicator. When displayed onscreen,
it indicates that the measured temperature differential between the MCH’s two
internal temperature controllers is greater than 2.5˚C. This is usually caused by
blocked or impeded water flow. Check the water path to be sure connectors are
fully seated, hoses are not kinked, valves are fully open, and the internal
recirculation valve (if so equipped) is fully in either the NORMAL or
INTERNAL position. If the MCH runs in this condition for more than ten
seconds, it will automatically cease operation and display a FAILURE screen.
!
Retry button
Test status indicators
Indicator lamps
System mode indicator
Audible alarm indicator
Temperature differential
indicator
Operational indicators
Control buttons

Page CardioQuip Modular Cooler-Heater Operator/Service Manual14
Standby
In STANDBY mode, the pump and heaters are off, and the operator is able to preset the desired
temperature and other settings in preparation for entering RUN mode.
To set the desired temperature in tenth-degree
increments, touch the “+” or “–” temperature control
button. Holding the button for more than one second
will cause the temperature setting to change more
rapidly. Alternatively, touching the “Set Point”
temperature field will cause a numeric keypad to
appear onscreen, allowing direct input of the desired
temperature. After entering the desired temperature,
touch the “ENT” button to confirm, or touch “ESC”
to cancel.
To modify the customizable message at the top right
of the screen, touch the message field to bring up an
alphanumeric keypad onscreen.
After entering the desired customized message (up to
12 characters; e.g., “CARDIOPLEGIA”), touch the
“ENT” button to confirm, or touch “ESC” to cancel.
The temperature setting, temperature presets, and customized message are stored in non-volatile
memory, and will be retained until changed.
Customizable text
Temperature control
buttons
Pump speed control
System mode indicator
Current temperature display
Operational indicators
CPG option controls
Control buttons

CardioQuip Modular Cooler-Heater Operator/Service Manual Page 15
Priming
From the STANDBY screen, touch the “Prime” button to enter PRIMING mode. While the MCH
is designed to be largely self-priming, running a priming cycle will remove all air bubbles from
the lines, offering quieter operation and better heat transfer. During the priming cycle, the pump
runs at high speed, and the cooling control valve automatically alternates the water flow between
cooling mode and recirculating mode every ten seconds. No operator intervention is required.
The MCH may be returned to STANDBY mode at any time by pressing the “Standby” button.
The standard priming cycle length is 2 minutes, but touching the “Extended Prime”
button—the stopwatch icon to the left of the countdown timer—will increase the
priming cycle length to 10 minutes. This feature is most useful when performing the
Quarterly Maintenance procedure.
During priming, if the pump speed setting is below maximum, the MCH
will automatically override the setting for the duration of the priming
cycle. When this occurs, the PUMP SPEED label will change to an
OVERRIDE label. Once priming is complete, the pump speed will return
to the preset.
Countdown timer
Extended Prime button
Temperature control
buttons
Pump speed override
indicator
System mode indicator
Current Temperature
Display
CPG option controls
Control buttons

Page CardioQuip Modular Cooler-Heater Operator/Service Manual16
Settings
The SETTINGS screen may be accessed from any operational screen by touching the “Settings”
button. This screen allows the operator to put the MCH into low-current mode, enable/disable the
Low Ice alarm, set the number of available pump speeds, enable/disable the Auto Pump High
feature, change the display language, and initiate the DEFROST cycle.
System Time:
Displays the number of hours and minutes the MCH-1000 has been
in operation.
Allows the operator to reduce the electrical current draw (e.g., when
running on battery or generator power). In “Normal” mode, the full
1600W of heat is enabled. In “Low” mode, the heater wattage is
halved to approximately 800W.
Low Current mode is indicated onscreen by an operational indicator
that looks like a yellow lightning bolt.
Low Ice Alarm:
Sounds a short alarm at 20-second intervals if the MCH is in cooling
mode and is unable to reach the desired temperature due to
insufficient ice.
Pump Speed
Count:
Controls the number of available pump speeds, up to 11. The pump
speeds are calibrated to provide approximately equal flow rate
increments. For single-speed operation, set this parameter to one (1).
In this mode, the pump speed control buttons will not appear on any
screens, and the pump will run at full speed.
Auto Pump High:
Automatically sets the pump at full speed when the MCH is heating
at full power. This ensures maximum heat delivery to the heat
exchanger, and also helps prolong the life of the heaters.
Current Mode:
!
System Time display
Current Mode control
Normal=1600W
Low=800W
Pump Speed Count
Control
Auto Pump High
(when heating)
Defrost button
System mode indicator
Low Ice Alarm control
Language Select
Maintenance info button

CardioQuip Modular Cooler-Heater Operator/Service Manual Page 17
Run
The RUN screen may be accessed from the TESTING or STANDBY screens by touching the
“Run” button at the bottom of the screen. In this mode, the pump is running, water is circulating,
and temperature control is active.
Defrost
The MCH incorporates a built-in defrost cycle,
which utilizes the heaters in a special recirculating
mode to melt the ice in the cold water tank. Once
the water in the tank reaches room temperature,
the MCH automatically returns to STANDBY
mode. The DEFROST function is accessed from
the SETTINGS screen. To defrost properly, the
MCH must either have a hose loop connected, or
have its recirculation valve (if so equipped) set to
INTERNAL mode.
!
Customizable message
Temperature control
buttons
Low Ice indicator
Pump speed control
button
System mode indicator
Current temp display
Operational status
Operational indicators
CPG Module controls
Control buttons
The pump speed
control button shows
the current pump speed.
When priming or
defrosting, or heating
when Auto Pump High
is enabled, pump speed
is forced high, and is
indicated by this
“OVERRIDE”
message.
The temperature
control status shows
the current system
function
(COOLING,
HEATING, AT
TEMP, DEFROST)

Page CardioQuip Modular Cooler-Heater Operator/Service Manual18
The CPG Module controls are only visible if the Cardioplegia
Shared Channel (CSC) Module is installed, and offer the
following operational modes:
Alarms
The MCH incorporates various alarms, enabling auditory monitoring of the system and alerting
the operator to any conditions that require the operator’s attention. A low priority alarm alerts the
operator to a condition that requires attention but poses minimal risk to the patient. A medium
priority alarm requires prompt operator attention to avoid potential reversible injury to the
patient. A high priority alarm indicates an immediate patient safety issue.
Low Water Level (medium priority)
Off
Water does not flow through the CPG circuit.
Cold
Water is circulated directly from the MCH cold water tank through the CPG circuit
by a secondary water pump. The temperature of the water in the CPG circuit is
determined by the temperature of the water in the cold water tank. This mode is
designed to deliver cold cardioplegia, and may be used as a cold water source for
the Quest MPS™. If the MCH is delivering cold water in STANDBY mode (so the
primary water pump is not running), this button will blink.
Main
The CPG circuit is connected to the Main circuit, and the secondary water pump is
off. Water is circulated through the CPG circuit at the same temperature as the
Main circuit. This mode is useful for delivering a “warm shot” at the end of a
procedure, or for connecting a patient blanket. Switching from “Cold” to “Main”
may cause a short-term temperature fluctuation in the Main circuit, due to the
introduction of cold water from the CPG circuit. In order to reduce this fluctuation,
the MCH will automatically pre-heat the internal heaters for approximately ten
seconds before making the switch. To further minimize the fluctuation, reduce the
overall length of the CPG circuit tubing as much as possible.
If the water level in the MCH cold water tank falls below a safe operating
level, the MCH halts its operation, the Low Water Level screen appears, and
the alarm sounds a three-beep sequence every 8 seconds. To silence the Low
Water Level alarm, add water to the tank to a depth of at least 6 in (15 mm) or
turn off the mains power switch on the front of the MCH. The audible alarm
may be silenced for 60 seconds by touching the Audio Silence button at the
bottom left corner of the screen.
!