Mac Medical DIGITAL WARMING CABINETS User manual
DIGITAL WARMING CABINETS
INSTALLATION-OPERATION-MAINTENANCE
USER MANUAL
California OSHPD
Pre-approved
Mac Medical
820 S Mulberry St.
Millstadt, IL 62260
(618) 476-3550 phone
(618) 476-3337 fax
December 2007
Contents
1. Warnings and Cautions
2. Installation
2-3. Operation / Troubleshooting
4. Fan Replacenent (upper)
5. Fan Replacement (lower)
6. Door Hinge Reversal
7. Replacement Parts List
8-12. Wiring Diagrams
13. Error Codes
Warnings and Cautions
The following is a list of safety precautions
that must be observed when operating this
equipment.
Warning: Injury hazard
REPAIRS AND AJUSTMENTS should be attempted
only by experienced service representatives. Use
of unqualified persons to work on this equipment
could result in personal injury or costly damage.
Warning: Burn Hazard
Do Not exceed 150 F for non-vented closures;
(screw caps, crimp seals, plastic pouches, etc.) Do
not exceed pre-sterile solution manufacturer’s
temperature requirements.
Caution: Possible Equipment Damage. Some
items are not acceptable in these warming
cabinets. If in doubt as to whether an item can be
safely processed, have facility supervisor contact
the manufacturer of the item.
Routine Preventative
Maintenance
¾ Check the temperature accuracy on a semi-
annual basis by placing a thermometer
near the fan inlet.
¾ Air temperature should be within 1 degree
F for upper chamber and counter top units,
and +/- 3 degrees F for lower compartment
and large single cabinet units.
¾ If the cabinet is not within these
guidelines contact Mac Medical for further
assistance.
1-877-828-9975
Do Not raise set temperature to increase rate of
heating. Allow approximately 4-6 hours for
solutions to reach desired temperatures.
Do Not use liquids on or inject in living tissue
unless actual liquid temperature has been
measured and is acceptable. Temperature of
warming cabinet’s contents may be hotter than
the displayed air temperature. For patient safety,
in accordance with good medical practice, always
check liquid temperature prior to using.
Warning: Electric Shock Hazard.
Do Not remove control tray. Contact a qualified
service representative.
Warning: Explosion Hazard.
Do Not use in the presence of flammable
anesthetics. Do not heat liquids in the presence of
flammable solvents.
Location for use
This unit is intended for use in a stable ambient
environment, with an ideal temperature of 72
degrees F or less. The unit should never be used
directly next to any appliance that may produce
heat, such as an autoclave. If the unit location is
near an autoclave or similar appliance,
modifications may be made to ensure proper
operation. Contact Mac Medical for information.
Recommended Settings
Mac Medical does not recommend chamber set
points. For appropriate heating temperatures,
please contact the manufacturer of the goods
being heated. For more information please
contact Mac Medical.
1
Operation
This cabinet has been designed to heat:
Warning
Please review all safety precautions before
operating Mac Medical equipment.
Installation
¾ Carefully un-wrap packaged parts.
¾ Place cabinet in front of its permanent
location.
¾ Plug the unit into the correct electrical
supply… 120 VAC, 15 amp max or 220 VAC,
7 amp max.
¾ Carefully slide the unit into its permanent
location.
Installation for units to be wired directly to
supply
¾ Liquids in vented containers.
¾ Liquids in non-vented containers to a
temperature of 150 F maximum.
¾ Metal objects.
¾ Muslin or cotton sheets and wool blankets.
¾ Glass containers must be annealed
borosilicate glass (Pyrex type).
¾ Plastic containers must be rated Thermal
capable of withstanding temperatures in
excess of 300 F.
1 Inch
of
Space
¾ Remove screws and top cover. (see page 4)
¾ Remove protection plate under top cover.
¾ Feed electrical supply into cabinet through
rear of cabinet.
¾ Connect electrical supply as shown below.
¾ Reinstall cover and top.
¾ Carefully slide the unit into its permanent
location.
120 Volt shown
Green/Ground
White/Neutral
Black/Positive
Note:
¾ Load contents into compartment with a
minimum of 1 Inch of space between walls
and fan to allow for circulation (as seen
above).
1 Inch of Space
Load
¾ Open the heating compartment door(s)
and place the articles to be heated in the
chamber, then close the door(s).
Start
¾ Apply power to the system by pressing the
power switch to the ON position. (Each
chamber has its own power switch).
2
Troubleshooting
The Unit will not heat
Operation
Set processing temperature
¾ Press SET and release.
¾ Press one of the arrow keys either up or
down to reach desired set point.
¾ Press SET again to complete the change. (If
dual chamber, steps must be completed
for both chambers).
Note:
¾ Check that the doors are closed.
¾ Check that the power is on.
¾ Check that the building power is activated.
¾ Open doors and hold down door switch. If
no noise is heard from fan operation
contact Mac Medical.
The unit heats, but does not reach the
selected temperature.
¾ Allow enough operating time for the unit
to reach the set point.
¾ Open doors and hold down door switch. If
no noise is heard from fan operation
contact Mac Medical.
Audible alarm and HI message alert
The temperature setting may be changed at any
time, however, reducing the temperature could
activate the over temp alarm.
If alarm is activated and the control panel reads
HI complete the following steps.
¾ Press ALARM RESET to silence alarm.
¾ Open door(s) to release heated air.
¾ If the display reads HI and alarm remains,
open door(s) and allow more cooling time.
Note:
If the alarm is activated under normal operating
conditions, turn power to specific chamber off and
call your Mac Medical representative at
1-877-828-9975.
¾ The alarm is activated when actual
temperature exceeds the set point by ten
degrees.
Audible alarm and HI message alert (Upper
Chamber Only)
¾ Possible heat transfer from lower unit.
¾ The temperature of the lower unit can be
no more than 30 degrees F greater than the
temperature of the upper unit.
¾ This problem can be prevented by
lowering the temperature of the lower
unit or by reversing the contents of the
two compartments.
3
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