DIGITAL WARMING CABINETS
INSTALLATION-OPERATION-MAINTENANCE
USER MANUAL
California OSHPD
Pre-approved
Blickman
39 Robinson Rd.
Lodi, NJ 07644
1-800-247-5070 phone
(201) 909-0832 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 Blickman for further
assistance.
1-800-247-5070
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 Blickman for information.
Recommended Settings
Blickman does not recommend chamber set
points. For appropriate heating temperatures,
please contact the manufacturer of the goods
being heated. For more information please
contact Blickman.
1
Operation
This cabinet has been designed to heat:
Warning
Please review all safety precautions before
operating Blickman 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
1 Inch of Space
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).
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 Blickman.
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 Blickman.
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 Blickman representative at
1-800-247-5070
.
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
Fan Replacement (upper Drawer)
1. Turn off power switch and disconnect power
to the unit.
2. Remove top cover from unit. (The top cover
has two separate layers to remove). (6 Screws)
3. Disconnect the black and white wires
connected to the fan motor.
Top Cover of Cabinet
4. From inside the heating chamber, remove the
outer fan guard. (4 Screws)
5. Remove the inner fan guard. (2 Screws)
6. Remove the nut from the fan’s drive shaft and
remove the fan impellor. (The nut has left-hand
threads).
7. From underneath drawer, remove motor
mounting screws, and remove motor. (3 Screws)
(The E clip on the motor shaft may snag. If so,
tilt the shaft at an angle and feed it through
the drawer base).
8. Install new motor.
9. Be sure the terminals on the motor face the
rear of the cabinet.
Motor
Fan Guards
10. Install the three mounting screws in the new
motor attach the black and white wires.
DO NOT connect the (RED) element wire to
the motor. This could cause serious
mechanical damage.
11. Install the NEW washer, fan impellor, and
nut. DO NOT over tighten nut.
12. Reassemble the fan guards and replace the
top of the cabinet.
Motor Shaft
with E Clip
Washer
Impellor
Nut
4
Fan Replacement (Lower Drawer)
1. Turn off power switch and disconnect power
to the unit.
2. Open lower door and remove the drawer
screws from underneath drawer. (2 screws)
3.Carefully pull the drawer 3/4 of the way out, or
until motor is accessable.
Drawer
Screws
4. Disconnect the black and the white wires
connected to the fan motor.
5. From inside the unit, remove the outer fan
guard. (4 Screws)
6. Remove the inner fan guard. (2 Screws)
7. Remove the nut from the fan’s drive shaft and
remove the fan impellor. (The nut has left-hand
threads).
8. From underneath drawer, remove motor
mounting screws, and remove motor. (3 Screws)
9. Install new motor. (The E clip on the shaft
may snag. If so, tilt the shaft at an angle and
feed it through the drawer base).
Motor
Fan Guards
10. Be sure the terminals on the motor face the
rear of the cabinet.
11. Install the three screws in the new motor
attach the two wires. (See previous page).
12. Install the NEW washer, fan impellor, and
nut. DO NOT over tighten nut.
13. Check to ensure that no other connections
have been disturbed before pushing in drawer.
14. Replace drawer and drawer scerws.
Motor Shaft
with E Clip
Washer
Impellor
Nut
5
Door Hinge Reversal
1. Turn off power switch and disconnect power
to the unit.
2. Remove top cover from unit. (The top cover
has two separate layers to remove). (6 Screws)
3. Open the cabinet door and remove the screws
from the side panels inside the cabinet. (4
Screws)
4. Remove all screws from the outer edge of the
rear of the cabinet. These are the screws that
secure the side panels of the unit. (Number of
screws varies according to cabinet size).
5. Carefully slide the each side panel toward the
rear of the cabinet 2-3 inches and then remove
the entire panel.
Top Cover of Cabinet
Inner Panel
Screws
6. Tap out the door hinge pins (glass door only).
7. Remove the nuts from the rear of the hinge
mount and remove the hinges.
8. Remove the hole plugs from the front of the
opposing side of the unit.
9. Mount the hinges on the opposing side
leaving them hand tight.
10. Reinstall the door, align, and tighten the
hinge mounts.
11. Reinstall side panels and top.
12. The door handles are now in the wrong
position. Remove the opposing screws in the
side of the door and reinstall.
*For dual steel door cabinets a LH
intermediate hinge, (part no. W0016) is needed
to reverse doors. Contact your retailer or service
technician for more information.
Hinge
Pins
Hole Plugs
6891011
12
Error Codes
Er 1
Er 2
Er 3
Er 4
Old Style Control
Reversed Thermocouple connection +/-.
Sensor type
mismatchor open RTD.
Sensor type mismatch.
Open thermocouple,
bad connection, broken
wire.
Current Control
HI (with Audible)
LLLL
HHHH
OPEn
Cabinet temp is 10
degrees higher than
setting.
Input temperaure is
lower than input
range.
Input temperature is
higher than input
range.
Input sensor is not
connected.
Er 5
Blank
Electrical noise.
Control is inoperable.
Display
Operating Temperature Lock
The chamber temperature can be locked at a
desired set point temperature. This can be done
by simply setting the desired temperature,
inserting the key, and turning it to the lock
position. Once the key is in the lock position the
temperature cannot be changed. (Be sure to
store the key in a safe place.)
JIC (Continuously)
Controler failure
13
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