Saturn PTM23F User manual

Commercial Freezer
Service Manual
SOLID DOORTOP MOUNT REACH-IN
PTM23F
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 PTM23F
2. WIRING DIAGRAM
2-1. FREEZER (1 DOOR): PTM23F
3. PARTS DETAILS
3-1. TOP 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. REFRIGERATOR CONTROLLER
5-1-1. DIXELL XR60C PARAMETER FOR FREEZER PTM23F
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 PTM23F

2. WIRING DIAGRAM
2-1. PTM23F

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

DOOR SWITCH
LOCK
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
Evaporator Fan Motor Blade Evaporator Fan Motor Fan Cover

Evaporator Defrost Heating Element
Evaporator Fan Fan Support

4. MAIN COMPONENTS
4-1. COMPRESSOR
MODEL
PTM23F
Refrigerant
R-404a
Voltage
115V/60Hz
Comp.
Model
T2168GK
Part code
27F.12
4-2. COMPRESSOR RELAY
PTM23F
Voltage
115V / 60Hz
Relay
Model
HLC-1XT04XA
Part code
27F.03
4-3. CONDENSER DRYER
MODEL
PTM23F
Refrigerant
R-404a
Spec.
XH-9 25g
Part code
GN1410TN.14
4-4. CAPACITOR
MODEL
PTM23F
Voltage
115V / 60Hz
Running
X
Starting
145-174μf
4-5. EVAPORATOR FAN MOTOR
MODEL
PTM23F
Voltage
115V / 60Hz
Motor
Model
CA27-04/C20
Part code
27R.30

4-6. CONDENSER FAN MOTOR
MODEL
PTM23F
Voltage
115V / 60Hz
Motor
Model
CA27-04/C19
Part code
27R.32
4-7. EVAPORATOR DEFROST HEATER
MODEL
PTM23F
Voltage
115V / 60Hz
Spec.
550
Part code
27F.04
4-8. LAMP BULB
MODEL
PTM23F
Voltage
115V/60Hz
Spec.
25W
Part code
27R.29
4-9. MAIN PCB
MODEL
PTM23F
Voltage
115V / 60Hz
Part code
XR60CX
Micom
code
27F.11

5. ELECTRONIC CONTROLLER INSTRUCTION
5-1-1
DIXELL XR60C PARAMETER FOR
PTM23F
NO.
CODE
PARAMETER
SET(℉)
1
Set
Main Set point
-7
2
Hy
Differential(hysteresis)
4
3
LS
Lower limit of main set point
-11
4
US
Upper limit of main set point
-1
5
Ot
Offset
-1
6
P2P
Evaporator probe presence
Y
7
OE
Evaporator probe calibration
0.0
8
P3P
Condenser probe presence
Y
9
P3F
Condenser probe function
Au2
10
O3
Condenser probe calibration
0
11
Ods
Outputs delay at start up
0
12
AC
Minimum time interval between the deactivation and
successive activation on compressor
5
13
CCt
Continuous cycle duration
0
14
Con
Compressor on-time during probe failure
10
15
COF
Compressor off-time during probe failure
10
16
CF
Unit of measure
℉
17
rES
Resolution
dE
18
Lod
Probe displayed
P1
19
tdF
Defrost type
EL
20
dtE
Defrost-end temperature
45
21
IdF
Time interval between defrost cycle
6.0
22
MdF
Max defrost cycle time
20
23
dSd
Start defrost delay
0
24
dFd
Displaying during defrost
it
25
dAd
Real temperature display delay at defrost end
0
26
Fdt
Dripping time
2
27
dPo
First defrost cycle after controller start up
n
28
dAF
Defrost delay after fast freezing
0
29
Fnc
Fan operating mode during normal controller
o-n
30
Fnd
Fan activation delay at controller startup and after
defrost
2
31
FSt
Fan stop temperature
54
32
ALC
Temperature alarms configuration
rE
33
ALU
Max temperature alarm differential
90
34
ALL
Minimum temperature alarm differential
0

5-1-2.
1. FRONTPANELCOMMANDS
To displaytarget set point, select a parameter or confirm an operation in programming
mode.
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
35
ALd
Minimum or minimum temperature alarm delay
99
36
dAO
Delay of temperature alarm at start up
1h
37
AU2
Condenser alarm temperature
144
38
ACH
Condenser alarm differential
8
39
Ad2
Condenser alarm delay
0
40
dA2
Delay of condenser temperature alarm at start up
0
41
AC2
Compressor stop for condenser alarm
AUt
42
Pbc
Kind of probe
ntc

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, till 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
UNSCREW THE FRONT PANEL
A. LIFT THE PANEL

You can change the door switch, lock main switch and the thermostat here
6-2. REFRIGERATION COMPARTMENT PARTS
6-2-1. UNSCREW THE SENSOR CLIP AND 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 REPLACE IT.

6-3. CONDENSING UNIT
6-3-1. TAKE OFF THE BOTTOM PANEL OF THE UNIT.
6-3-2. UNSCREW THE UNIT BOARD. YOU CAN PULL THE UNIT BOARD OUT FOR ANY
REPAIRS OR CLEANING.