MDT CASTLE 5520 User manual

へ
SERVICE
MANUAL
M
fr
©
Castle
5520
5525
5530
WARMING CABINETS
MDT Diagnostic Company
1777 E. Henrietta Road
PO. Box 23077
C
Rochester,
New
York
14692
)
Г
ER
Technology for Life
q
ノ
30926 Rev. C

SERVICE MANUAL 30926 (1/18/84)
Rev. A (11/ 9/85) GRAPHICS REVISED: Pages 5, 21, 22, & 25
Rev. B ( 3/21/86) GENERAL REVISION
Rev. C (11/18/87) Changed Logos: Front & Back Covers & p. ii
For Complete Manual Add:
Installation Instructions 30971 Rev. C
Operators Manual 30923 Rev. B
Parts Catalog 30927 Rev. C
DESCRIPTION OF SYMBOLS & NOTES IN MANUAL
The following symbols with related notes appear in this manual.
PEN) “Danger” notes apply when there is a possibility of serious injury or death.
“Warning” notes alert the user to the possibility of personal injury.
“Caution” notes alert the user to the possibility of damage to the equipment.
ㆍ
NOTE > “Notes” alert the user to pertinent facts and conditions.
= All parts replaced under warranty shall be returned intact
Ne > to the Castle, Rochester, N.Y., for evaluation.
This manual contains proprietary information of the MDT
Corporation, Rochester, New York, and it shall not be re-
noreğp> produced in whole or in part without the written permission
of the MDT Corporation.
EMDT and Castle are registered trademarks.

30926
TABLE OF CONTENTS
SECTION
PAGE
1.
GENERAL
DESCRIPTION
В
о
Control
Panel
。
Center
(Storage)
Compartment
-
Control
Head
Assembly
Door
Switch
上
ユー
スー
で
ーー
ドド
<
ドド
이
이이 우우
Reversible
Door
1
上
1
上
ーー
トー
トー
トド
ドド
ドド
ーー
Shelf
Filter
(Models
5520
&
5530
Only)
..............
Adjustable Shelves (Models
5520 & 5525 Only)
Optional
Recorder
....1....%..........1%2...,.....
Temperature
Conversion
Chart
....
oe
Heatad
AirFIOW:
ee
see
ele
e
lale
ŞA
es
ola
e
elele
siye
emele
поме
еее
ее
2. WIRING DIAGRAM
Warming
Cabinet
Wiring
Diagram
.......................................
4
3.
TROUBLE
ANALYSIS
ПОЛ
МОЕ
О
ео
αρ
ο
ος
оное
в
rea
6
Circuit
Breaker
Trips
7
Unit
Will
Not
Heat
Up
8
Jumper
Connections
on
J3
of
Printed
Circuit
Board
...............
9
UnitiNot'AtProper
Temperature
e
cen
ca
haa
er
aida
aos
eje
10
+5V
Power
Supply
Problem
.....................
11
+11.6V
or
-11.6V
Power
Supply
Problem
12
18
VAC
Power
Supply
Problem
13
24
VAC
Power
Supply
Problem
14
Yellow
Warning
Lit
............
15
We
16
Heater/Fan
Operational
Checks
17
4.
ADJUSTMENTS
&
CALIBRATION
Safety
During
Adjustments
&
Calibration
....................,............
18
Power
Supply
Voltage
Calibration
18
Temperature
Control
Calibration
19
DGOrAGiustMment
“tino
iene
nie
enni
eee
20
Recorder
Calibration
pronao
eae
sure
sie
eds
21
5.
REPAIR
Safety.
DuringRepaif
cdr
e
ian
бое
о
ие
ани
09
23
Access
to
Control
Head
Components
...........
23
Access
to
Control
Box
Components
............
23
Circuit
Breaker
Replacement
23
Fuse
Replacement
............
23
Transformer
Replacement
.....
24
Low
Voltage
Power
Supply
Replacement
........
24
EaniReplacemant:
MMM...
uen
24
Heater
Replacement
..........
24
Thermostat
Replacement
24
Door
Switch
Replacement
26
Recorder
Replacement
(Optional
Equipment)
zes
26
Printed
Circuit
Board
Replacement
...............
se
26
Relay
Meplacemente
...................:0.x».5
302
mee
22
Door
Gasket
Replacement
.......................
ss
22
Reversing'DoonSwWing.
Lu.
ο
siete
nec
eme
Mala
Kase
é
27

—IMPORTANT—
SPECIAL SAFETY INSTRUCTIONS
CAREFULLY READ THE FOLLOWING INSTRUCTIONS BEFORE
SERVICING THE UNIT, AND FOLLOW THE INSTRUCTIONS.
DANGER
VT
STORAGE INSTRUCTIONS (p. 5)
Do not store items in the Warming Cabinet which could introduce
flammable agents into the cabinet atmosphere. This unit contains
electrical components designed to heat and circulate air within the
cabinet. Contact with an airborne flammable agent may cause
explosion
or fire, resulting in serious personal injury, or damage to
eguipment and surroundings.
TEMPERATURE SELECTION (p. 4)
Hot substances, heated to temperatures above 49°C (120°F), may
cause burn damage to skin tissue. Goods, solutions, etc., which
may contact skin tissue when used, should not be processed at
temperatures above 49°C (120°F).
STORAGE INSTRUCTIONS (p. 5)
When
Warming
Cabinet
is
at
operating
temperatures
above
49°C
(120°F),
contact
with
interior
surfaces
of
heated
compartments
could
result
in
burns
to
skin.
Avoid
contact
with
intertor
cabinet
surfaces
when
removing
or
replenishing
stock
if
cabinet
tempera-
ture
is above
49°C (120°F).
30926

5520, 5525, & 5530 WARMING CABINETS
5520, 5525, & 5530 WARMING CABINETS
ENTER
CENTER
(STORAGE)
RE
μεν
COMPARTMENT
|
CONTROL
SOMEZE
ASSEMBLY
ASSEMBLY
CONTROL
RECORDER
RECORDER
PANEL
(OPTIONAL)
(OPTIONAL
DOOR
CONTROL
SWITCH
BANER
UPPER
HEATED
DOOR
=
SWITCH
COMPARTMENT
|
SHELF
HEATED
AIR
|
FILTER
DEFLECTOR
DS
ADJUSTABLE
!
SHELVES
|
|
|
>
ADJUSTABLE
LOWER
—
EMO
ÚNHEATED
REVERSIBLE | LT REVERSIBLE COMPARTMENT
DOOR | DOOR
MODEL
5520
MODEL
5525
(CABINET
MODEL)
(CABINET
MODEL)
CENTER
(STORAGE)
COMPARTMENT CONTROL
HEAD
ASSEMBLY
RECORDER
(OPTIONAL)
CONTROL
PANEL
DOOR
SWITCH
REVERSIBLE
DOOR
SHELF
FILTER
MODEL 5530
(CABINET MODEL)
MODELS
5520
&
5525
MODEL
5530
(RECESSED
MODEL)
(RECESSED
MODEL)
30926

6
5520, 5525, 4 5530 WARMING CABINETS
General Information
GENERAL
Castle 5520, 5525, and 5530 Warming Cabinets
are designed for the heating and storage of dry
goods (e.g. blankets, towels, etc.) and solutions.
The 5520 Warming Cabinet circulates heated
air evenly over items stored on each of its four
shelves. Cabinet temperature is adjustable from
36°C (97°F) to 71°C (160°F). Each shelf is capable
of holding 20 two-litre square flasks containing
solutions, or combinations of flasks and dry goods,
or dry goods only. A filter provided in the top shelf,
filters the heated air circulating upward from the
lower shelves. The height of the three lower shelves
is adjustable.
The 5525 Warming Cabinet has an upper
heated compartment and a lower unheated com-
partment with shelves. Adjustable temperature
range for the heated compartment is identical to the
5520 Warming Cabinet described above. Overall
shelf capacities and lower shelf adjustability are
also the same. Air will not circulate from the lower
compartment to the upper compartment.
The
5530
Warming
Cabinet
is
compactly
sized
to
provide
one
storage
compartment
capable
of
holding
20
two-litre
sguare
flasks
containing
solu-
tions,
or
a
combination
of
flasks
and
dry
goods,
or
dry
goods
only.
A
filter
provided
in
the
front
of
the
compartment
filters
the
heated
air
circulating
upward
from
below.
Either
unit
may
be
eguipped
with
an
optional
recorder
for
the
purpose
of
providing
a
24
hour
record
of
operating
temperatures.
DESCRIPTION
Control Panel
PROBLEM PROBLEM
INDICATOR INDICATOR
(YELLOW)
(RED)
NY
CONTROLS “ON” SWITCH - Activates the Control
Panel (Turns the Warming Cabinet on.). A green
indicator light will appear at the upper left-hand
corner of the switch, when the switch is activated.
CONTROLS “OFF” SWITCH - Deactivates the Con-
trol Panel (Turns the Warming Cabinet off.). If the
unit is equipped with an optional recorder, the
recorder will continue to operate, providing a 24
hour record of temperatures.
TEMPERATURE SELECTION KNOB - Turning the
Temperature Selection Knob, while holding it in the
depressed position, will allow the operator to select
the desired operating temperature to be maintained.
The
available
temperatures
that
can
be
selected
range
from
36°C
(97°F)
to
71°C
(160°F).
Tempera-
ture
selection
will
appear,
in
degrees
centigrade,
on
the
digital
Temperature
Display
as
long
as
the
knob
is depressed.
TEMPERATURE
DISPLAY
-
Continuously
displays,
in
degrees
centigrade
(Range:
0°C
to
85°C),
the
actual
temperature
within
the
Warming
Cabinet,
as
long
as
the
Control
Panel
is
activated.
When
the
Temperature
Selection
Knob.
is
depressed,
the
actual
temperature
display
will
disappear
and
the
set
temperature
(temperature
selected
by
the
operator)
will
appear,
accompanied
by
an
asterisk
(*).
The
actual
temperature
will
reappear
when
the
Temperature
Selection
Knob
is
released.
CHAMBER-AT-TEMPERATURE
INDICATOR
-
“Lights
as
long
as
the
interior
temperature
remains
within
5.5ºC
(10ºF)
of
the
set
temperature.
The
color
of
the
indicator
light,
located
in
the
upper
left-hand
corner
of
the
indicator,
is
green.
PROBLEM
INDICATOR:
YELLOW
-
Lights
to
indi-
Cate
a
malfunction
in
the
Warming
Cabinet
circuitry.
The
yellow
light
will
be
accompanied
by
an
audible
N
人
alarm
and
a
“OO”
that
will
appear
in
the
Tempera-
CHAMBER-AT-
ture
Display.
TEMPERATURE
FT]
Nød
uj
INDICATOR
ча
PROBLEM
INDICATOR:
RED
-
Lights
to
indicate
TEMPERATURE
EST
EITHER
the
temperature
of
the
Warming
Cabinet
DISPLAY has
risen
abovethe
set
temperature
by
8.3°C
(15°F)
TEMPERATURE
^
and
an
‘overheat’
condition
exists,
OR
there
is
a
LON
malfunction
in
the
Warming
Cabinet
circuitry.
Ared
He
light
for
an
‘overheat’
condition
is
accompanied
by
SONTROLS
Font
>
an
audible
alarm
(The
Temperature
Display
will
ώς
2
show
the
cabinet
temperature.).
A
red
light
for
a
В
ОЕ
circuitry
malfunction
is
accompanied
by
an
audible
alarm
and
an
“OF”
that
will
appear
in
the
Tempera-
CONTROL
PANEL
ture
Display.
°
30926

§520, 5525, & 5530 WARMING CABINETS
1. General Information
Center (Storage) Compartment - Control Head
Assembly-
This compartment may be used for ready-
access storage of recorder charts, ink pen car-
tridges, etc.
Door Switch
Closing the Warming Cabinet door will depress
this switch and allow electrical power to be supplied
to the heating circuit. When the door is opened, this
switch will be released and electrical power to the
heating circuit will be shut off.
Reversible Door
A Warming Cabinet door swings open either to
the left or right, depending on the individual unit. If
desired, a door may be converted so it swings open
in the opposite direction. Instructions for reversing
the door swing are in this Service Manual, and
should only be undertaken by Castle Service
personnel.
Shelf Filter (Models 5520 4 5530 Only)
Filters the upward flow of heated air into a
compartment.
Adjustable Shelves (Models 5520 4 5525 Only)
The two middle shelves may be raised or
lowered, as desired, to increase or decrease the
height of the three lower compartments.
Optional Recorder
A Warming Cabinet may be equipped with an
optional Recorder for the purpose of providing a 24
hour record of operating temperatures. It will con-
tinue to record temperatures even though the Con-
trol Panel has been deactivated by pressing the
Controls "OFF" Switch.
RED PEN | So
-—_ RECORDER
: am
/
DOOR
ACTUATED
SWITCH
OPTIONAL RECORDER
RECORDER CHART - Graduated to record cabinet
temperature in degrees centigrade (20°C to 100°C),
over a 24 hour period.
PEN - Records temperature in red ink.
DOOR ACTUATED SWITCH - Turns recorder on
when the door is closed. Turns recorder off when
the recorder door is opened. May be pulled out to
turn recorder on while the recorder door is open.
Pen arm will automatically lift off of the chart
and move to the holding ramp when the recorder
door is opened.
TEMPERATURE CONVERSION CHART
°C = oF °C °F °C = °F
36 97 48 118 60 140
37 99 49 120 61 142
38 100 50 122 62 144
39 102 51 124 63 145
40 104 52 126 64 > 147
41 106 53 127 65 149
42 108 54 130 66 151
43 109 55 131 67 153
44 111 56 133 68 154
45 113 57 135 69 156
46 115 58 136 70 158
47 117 59 138 71 160

§520, 5525, & 5530 WARMING CABINETS
Operation
o Heated Air Flow
MODEL 5520 | MODEL 5525
e Upper Heated Compartment
e Lower Unheated Compartment
MODEL 5530
30926

5520, 5525, & 5530 WARMING CABINETS
2. Wiring Diagram
2A
CONTROL
BOX
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30926

5A RECORDER
5520, 5525, & 5530 WARMING CABINETS
2. Wiring Diagram
3A DISPLAY BOARD
(CONTROL END)
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ar
sv
|
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于
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2
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1
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2A188R3
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DETAIL A
WIRING DIAGRAM FOR 240VAC
9
4A DISPLAY/SWITCH
PANEL
NOTE: 1) ALPHA NUMERICS SHOWN ON WIRE LEADS
PART OF HOT STAMPING. i
2) BRACKETS ( ) INDICATE ACTUAL WIRE CO-
LOR, NOT INFORMATION TO BE STAMPED
ON WIRE INSULATION.
3) THE WIRES WILL BE STAMPED WITH THE AP-
PLICABLE COLORED STAMP AS FOLLOWS.
120V= R RED MARKING ON WHITE WIRE.
NEUTRAL= BK BLACK MARKING ON WHITE
WIRE.
LOW VOLTAGE= V VIOLET MARKING ON
WHITE WIRE.
4) INFORMATION AS NOTED ON LABEL ON.
BOTTOM SIDE OF ITB.
5) JUMPER STRIPS FURNISHED WITH TERMINAL
BLOCK.
6) 120 VOLT WIRING SHOWN, FOR 240 VOLT WIRING
SEE DETAIL: A.
7) CONNECT WIRES 1PS2 & 1PS3 TOGETHER.
30926

5520, 5525, & 5530 WARMING CABINETS
3. Trouble Analysis
Unit will not turn on.
Unit does not
1 turn “ON” °
Yes
Disconnect No | Turn Disconnect
2 "ON" "ON"
Yes
м V. If Circuit Breaker shuts off during
3 e a No deo, NE heat-up, refer to Analysis for
= “Circuit Breaker Trips.”
Good
Yes
Check/adjust
Is DS10 on PCB | No, |power supply. Turn} No Good Replace
4
ER"
a.
Power
"ON OFF-ON Circuit Subo!
Breaker to reset. PPY
Check that 7P
is connected
Yes on PCB
Unit
Jumper 3A4J-1 OFF Replace
5 | to 3A4J-8 on PCB PCB
Yes
Replace Switch
6 Assembly
6 30926

5520, 5525, & 5530 WARMING CABINETS
3. Trouble Analysis
( Circuit breaker trips.
Circuit Breaker
1 trips when unit
is cold
Trips during heat-up Trips immediately
1
2 Overheat πώς ον Hi
problem ft P
Circuit Breaker Circuit Breaker
Chamber temperature
display below set point
Chamber temperature
display above set point
4
Are one No | Replace ls DS12on | No | ls2A2SSR | No | Replace
operating
fan(s)
PCB
"ON"
2A2SSR
properly
Yes Yes
y
Check
and
re-
Replace
place overheat
PCB
thermostat
30926

5520, 5525, & 5530 WARMING CABINETS
3. Trouble Analysis
Unit will not heat up. NOTE: When block diagram leads to trouble,
refer to component checks that follow in
this section of manual.
1 Unit will not
heat up
Is DS11, DS12 taser οι
S PCB "ON" switch No E 을
2 on PCB engaged oor
Yes Yes
Is current Check/replace
3 to heaters door switch
Current good Current or wiring
Zero Good
Current
Low
Y | 4
4 Check bel Check for Replace
wiring heater(s) operation PCB
Check that
5 circulation is
not blocked
3 30926

§520, 5525, & 5530 WARMING CABINETS
3. Trouble Analysis
‘ Jumper Connections on J3 of Printed Circuit Board
Jumpers on J3 of the printed circuit board must be properly connected for
proper operation of a50 Hz or 60 Hz supply circuit. Proper connections are as
follows:
CUT-OUT
(Time Selector
Switch)
3
J6 J7
== ES
33
e
MIE)
д |< > 5
|
add >
wle—
а |< >
во |< >| so
a |< )
50/60 HZ CONNECTIONS
JUMPER
30926

5520, 5525, & 5530 WARMING CABINETS
3. Trouble Analysis
Unit not at Proper Temperature
Check chamber temperature
with temperature indicator.
Display should indicate + 4°C
No
у
Calibrate power supplies
and temperature control Yes
per specified procedures
Unit OK
y
Temperature within Yes
specifications
Unit OK
No
Y
Replace temperature
sensor and recheck
temperature
10
30926

5520, 5525, & 5530 WARMING CABINETS
3. Trouble Analysis
+5V Power Supply a Problem
good
less than +5V
y À
y
+5V supply not at
5.00V + .01V per cal-
ibration procedure.
greater than +5V
=+5V
|
Y
good
Check Trouble Anal-
ysis. "Unit will not
turn on.”
Power supply good.
Recalibrate per speci-
fied procedure.
good
Still
low
good
Turn off circuit
breaker to reset OVP
Still
low
у
Recalibrate per speci-
fied procedure.
Still
low
y
Check wiring and re-
place power supply
if required.
Unable to
calibrate
Replace power supply
30926
1

5520, 5525, & 5530 WARMING CABINETS
3. Trouble Analysis
+11.6 or -11.6 Power Supply Problem
Good
0 or low voltage
Supply voltage not at
-11.6 or +11.6V re-
spectively
Voltage is higher value
Voltage
Correct
L
Good
Check Trouble Anal-
ysis
“Unit will not turn on”
Power supply good
Recalibrate power
supply
Good
Still
plow V
Good
Recalibrate per speci-
fied procedure
Still
low V
Check voltage at
power supply term-
Voltage is 0
inals
Voltage
good
Good
Repair faulty wiring
Check input AC vol-
Input voltage OK
tage to power supply
Check input wiring
Replace power
supply
calibrate
y
Unable to
Replace power
supply
12
30926

5520, 5525, & 5530 WARMING CABINETS
3. Trouble Analysis
18VAC Power Supply Problem
1
Voltage less than 18 VAC 18 VAC power supply Voltage more than 18 VAC
not at 18 VAC +4 VAC
Voltage
correct
Check Trouble Anal-
ysis
“Unit will not turn on”
Voltage power supply Check that power
good supply input is correct 183008
Still
low
1 1
Check input voltage
to
power
supply
Input
OK
Replace
power
supply
Input
incorrect
Check
wiring
.
Replace power supply
30926
13

5520, 5525, & 5530 WARMING CABINETS
3. Trouble Analysis
24V Power Supply Problem
Voltage low 24 VAC supply not at Voltage high
24 VAC +5V
Voltage Check Trouble Anal-
DI ysis 24V transformer good Check input wiring 24V
9 “Unit will not turn on” good
Voltage
low
Voltage :
Check input voltage
good and wiring Replace transformer
Voltage
low
Voltage
good Check if fuse is bad
Voltage
good Check 24V wiring
Replace transformer
14 30926

§520, 5525, & 5530 WARMING CABINETS
3. Trouble Analysis
Yellow Warning Lit
Yellow Warning code,
00 in temperature dis-
play
1
Is -11.6V power sup- No Adjust or replace
ply good? power supply
Yes
Disconnect P6 from
PC board.
> code sull Yes Fieplace PC board
No
Check wiring for
shorts. Replace temp-
erature sensor.
30926
15