Saturn SMG12F User manual

Commercial Freezer Service
Manual
GLASS DOOR FREEZER
SMG12F
Please read this manual completely before attempting to install or operate this equipment.

TABLE OF CONTENTS
1. FEATURE CHART
1-1. OUTSIDE DRAWING AND MEASUREMENT FOR SMG12F
2. WIRING DIAGRAM
2-1. FREEZER (1 DOOR): SMG12F
3. PARTS DETAILS
3-1. BOTTOM PANEL
3-2. REFRIGERATION COMPARTMENT
3-3. DOOR
3-4. COOLING COMPARTMENT
4. MAIN COMPONENTS
4-1. COMPRESSOR
4-2. COMPRESSOR RELAY
4-3. CONDENSER DRYER
4-4. CAPACITOR
4-5. EVAPORATOR FAN MOTOR
4-6. CONDENSER FAN MOTOR
4-7. EVAPORATOR DEFROST HEATER
4-8. LAMP
4-9. THERMOSTAT
5. ELECTRONIC CONTROLLER INSTRUCTION
5-1. FREEZER CONTROLLER
5-1-1. DIXELL PARAMETER FOR FREEZER
5-1-2. HOW TO USE THE CONTROLLER
6. REPLACEMENT OF MAIN COMPONENTS
6-1. BOTTOM PANEL PARTS
6-2. REFRIGERATION COMPARTMENT PARTS
6-3. CONDENSING UNIT

1. FEATURE CHART
1-1. OUTSIDE DRAWING OF SMG12F
2. WIRING DIAGRAM
2-1. SMG12F

3. PARTS DETAILS
3-1. FRONT PANEL
THERMOSTAT
MAIN SWITCH

3-2. REFRIGERATION COMPARTMENT CYCLE ASSEMBLY
CONDENSER FILTER DRIER CONDENSER FAN MOTOR WATER PAN COMPRESSOR

DRAIN PAN
CONDENSER FAN MOTOR ASSEMBLY
FAN COVER CONDENSER FAN MOTOR BLADE CONDENSER FAN MOTOR

3-3. DOOR
GASKET
Magnetic gasket can be replaced without any tools.

3-4. COOLING COMPARTMENT
CIRCLE FAN COVER
Circle Fan Cover
CIRCLE FAN
Evaporator Fan Motor Blade Evaporator Fan Motor Fan Cover

Evaporator Defrost Heating Element
Evaporator Fan Fan Support

4. MAIN COMPONENTS
4-1. COMPRESSOR
MODEL
SMG12F
Refrigerant
R-404A
Voltage
115V/60Hz
Comp.
Model
T2155GK
Part code
TUC27F.07
4-2. COMPRESSOR RELAY
SMG12F
Voltage
115V / 60Hz
Relay
Model
HLC-1XT04XA
4-3. CONDENSER DRYER
MODEL
SMG12F
Refrigerant
R-404A
Spec.
XH-9 25g
Part code
GN1410TN.14
4-4. CAPACITOR
MODEL
SMG12F
Voltage
115V / 60Hz
Running
---
Starting
145-175μf
4-5. EVAPORATOR FAN MOTOR
MODEL
SMG12F
Voltage
115V / 60Hz
Motor
Model
CA27-04/20
Part code
27R.30

4-6. CONDENSER FAN MOTOR
MODEL
SMG12F
Voltage
115V / 60Hz
Motor
Model
CA27-04/C19
Part code
27F.11
4-7. EVAPORATOR DEFROST HEATER
MODEL
SMG12F
Voltage
115V / 60Hz
Spec.
275w
Part code
HGD-12F.03
4-8. LAMP
MODEL
SMG12F
Voltage
115V/60Hz
Spec.
LED T8 L=875
Part code
HGD-12F.02
4-9. MAIN PCB
MODEL
SMG12F
Voltage
115V / 60Hz
Model
XR60C
Part code
27F.11

5. ELECTRONIC CONTROLLER INSTRUCTION
5-1-1.
DIXELL XR60C PARAMETER FOR FREEZER
SMG12F
NO.
Label
Name
Range
Hidden
Par.
Default
℃/℉
℃
℉
1
Set
Set point
LS-US
-5/23
-22
-7
2
Hy
Differential
0.1-25.5℃/1-255℉
2/35.6
2
4
3
Ls
Minimum set
point
-50℃-SET/-58℉-SET
Yes
-50/-58
-24
-11
4
Us
Maximum set
point
SET-110℃/SET-230℉
Yes
110/23
0
-18
-1
5
Ot
Thermostat
probe
calibration
-12-12℃/-120-120℉
0/32
2
-1
6
P2P
Evaporator
probe
presence
n=not pres. ;y=pres.
Y
Y
Y
7
OE
Evaporator
probe
calibration
-12-12℃/-120-120℉
Yes
0/32
0
0
8
Ods
Outputs
delay at start
up
0-255min
Yes
0
2
2
9
AC
Anti-short
cycle delay
0-50min
1
2
2
10
CCt
Continuous
cycle
duration
0.0-24.0h
Yes
0.0
0.0
0.0
11
COn
Compressor
ON time with
faulty probe
0-255min
Yes
15
10
10
12
COF
Compressor
OFF time
with faulty
probe
0-255min
Yes
30
10
10
13
CF
Temperature
measuremen
t unit
℃/℉
Yes
℃/℉
℃
℉
14
rES
Resolution
in=integer; dE = dec .point
DE
DE
DE
15
Lod
Probe
displayed
P1;P2
Yes
P1
P1
P1
16
tdF
Defrost type
EL= el.heater; dE= dec. point
EL
EL
EL

17
dtE
Defrost
termination
temperature
-50-50℃/-58-122℉
8/46.4
7
45
18
IdF
Interval
between
defrost cycles
1-120ore
6
6
6
19
MdF
(Maximum)
length for
defrost
0-255min
30
20
20
20
dsd
Start defrost
delay
0-99min
Yes
0
0
0
21
DFd
Display
during
defrost
rt, it, Set, DEF
Yes
it
Set
set
22
dAd
MAX display
delay after
defrost
0-255min
Yes
30
30
30
23
Fdt
Draining time
0-120min
Yes
0
2
2
24
dPo
First defrost
after startup
n=after IdF; Y=immed
Yes
n
n
n
25
dAF
Defrost delay
after fast
freezing
0-23h n 50’
Yes
0.0
0
0
26
Fnc
Fan
operation
mode
c-n,o-n,c-y,o-y
o-n
o-n
o-n
27
Fnd
Fan delay
after defrost
0-255min
10
2
2
28
Fct
Differential
of
temperature
for forced
activation of
fans
0-50℃
Yes
10/50
10
50
29
FSt
Fan stop
temperature
-50-50℃/-58-122℉
2/35.6
20
54
30
Alc
Temperature
Alarm
configuration
rE=related to set; Ab=absolute
Yes
Ab
re
re
31
ALU
MAX.
temperature
alarm
SET-110℃/SET-230℉
110/23
0
50
90
32
ALL
MIN.
temperature
-50℃-SET/-58℉-SET
-50/-58
0
0

alarm
33
Ald
Temperature
alarm delay
0-255min
Yes
15
99
99
34
dAO
Delay of
temperature
alarm at start
up
0-23h n 50’
Yes
1.30
1
1
35
i1P
Digital input
polarity
oP=opening ;CL=closing
CL
CL
CL
36
i1F
Digital input
configuration
EAL=extern. alarm ;bAL=lock
regulation;PAL=press. switch;
dor=doorswitch;dEF=defrost; LHt
=disabled;Htr=Cooling-heating
dor
do
r
do
r
37
did
Digital input
alarm delay
0-255min
15
15
15
38
Nps
Number of
activation of
pressure
0-15
Yes
15
15
15
39
odc
Compressor
status with
open door
no,Fan=normal;CPr=comp.OFF;FC=
Compr.OFF & fan.OFF
Yes
F-C
F-C
F-C
40
Pbc
Kind of probe
Ptc;ntc
ntc/Ptc
ntc
ntc
41
dp1
Room probe
display
-
Yes
-
P1
P1
42
dp2
Evaporator
probe display
-
Yes
-
P2
P2
43
rEL
Software
release
-
Yes
2.7
4.2
4.2
44
Ptb
Map code
-
Yes
-
4
4

5-1-2.
1. FRONTPANELCOMMANDS
To display target set point. In programming mode it selects a parameter or confirms an
operation.
To start a manual defrost
To view the last alarm occurrence. In programming mode, it browses the parameter
codes or increases the display value
To view the last alarm occurrence. In programming mode, it browses the parameter
codes or decreases the display value
KEY COMBINATION
To lock & unlock the keyboard
To enter in programming mode
To return to the room temperature display
1.1 Function of LEDS

2. MAIN FUNCTIONS
2.1 HOW TO VIEW THE SET POINT
1. Push and immediately release the SET key. The display will show the set point value.
2. Push and immediately release the SET key or wait for 5 seconds to display the
sensor value again.
2.2 HOW TO CHANGE THE SET POINT
1. Push the SET key for more than 2 seconds to change the set point value.
2. The value of the set point will be displayed and the LED starts blinking.
3. To change the set value, push the or key within 10s.
4. To set new point value, push the SET key again or wait 10s.
2.3 HOW TO START A MANUAL DEFROST
Push the key for more than 2 seconds and a manual defrost will start
2.4 HOW TO LOCK THE KEYBOARD
1. Hold the and keys for more than 3s.
2. The “POF”message will be displayed and the keyboard will be locked. At this point, it will be
possible only to see the set point or the MAX or Min temperature stored.
3. If a key is pressed more than 3s the ”POF”message will be displayed.
2.5 HOW TO UNLOCK THE KEYBOARD
Hold the and keys together for more than 3s until the “POF” message is displayed.
3. ALARMSIGNALS
HOW TO VIEW THE ALARM AND RESET THE RECORDED ALARM
1. Hold the or key to display the alarm signals.
2. When the signal is displayed, hold the SET key until the “rst”message is displayed. Push the
SET key again. The “rst”message will start blinking and the normal temperature will be displayed
again.

6. REPLACEMENT OF MAIN COMPONENTS
6-1. FRONT PANEL PARTS
6-1-1. UNSCREW THE FRONT PANEL.
TAKE OFF THE BOTTOM PANEL.
6-1-2. UNSCREW THE JUNCTION BOX. THE MAIN SWITCH, LIGHT SWITCH AND THERMOSTAT
CAN BE CHANGED.

6-2. REFRIGERATION COMPARTMENT PARTS
6-2-1. UNSCREW THE SENSOR CLIP .TAKE THE SENSOR OUT FROM THE CLIP.
6-2-2. Unscrew the circle fan cover.
6-2-3. PULL DOWN THE CIRCLE FAN COVER.

6-2-4. UNSCREW THE FAN SUPPORT.
6-2-5. CHANGE THE DEFROST HEATING ELEMENT.
A. UNHOOK THE EVAPORATOR FROM ITS CASING.

B. TAKE OFF THE ELEMENT AND CHANGE IT.
6-3. CONDENSING UNIT
6-3-1. TAKE OFF THE BOTTOM PANEL OF THE UNIT.
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