Scotsman AC/EC 106 User manual

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Page 1
Scotsman Ice Srl
Via Lainate, 31 - 20010 Pogliano M.se - Milano - Italy
Tel. [phone] (Aut. Sel.)- Telefax [phone]
Direct Line to Service & Parts:
Phone [phone] - Fax [phone]
Website: www.scotsman-ice.it
E-Mail: [email protected]
ISO 9001 - Cert. n. 0080
SERVICE MANUAL
AC-EC 106
AC-EC 126
AC-EC 176
AC-EC 206
AC-EC 226
R134A - R404A - R452A version
Electronic cubers with storage
PC Board version
REV. 05/2019

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Page 2
INDICE 2
3
6
9
12
15
17
17
17
17
18
18
19
Table of contents page
Specifications AC-EC 106
Specifications AC-EC 126
Specifications AC-EC 176
Specifications AC-EC 206
Specifications AC-EC 226
GENERAL INFORMATION AND INSTALLATION
Introduction
Unpacking and Inspection
Location and levelling
Electrical connections
Water supply and drain connections
Final check list
Installation practice
OPERATING INSTRUCTIONS
Start up
Operational checks
OPERATING PRINCIPLES (How it works)
Freezing cycle
Harvest cycle
Electrical sequence
Components description
ADJUSTMENT, REMOVAL AND REPLACEMENT PROCEDURES
Adjustment of the cube size
Wiring diagram AC-EC 106-126-176-206-226
Service diagnosis
MAINTENANCE AND CLEANING INSTRUCTIONS
General
Icemaker
Clean - Replace of air condenser filter
Cleaning instructions of water system
39
40
42
20
21
26
29
30
34
45
45
45
45

Page 3
Page 3
MIN.
10°C
5°C
1 bar
-10%
Important operating requirements:
Air temperature
Water temperature
Water pressure
Electr. voltage variations
from voltage rating
specified
on nameplate
SPECIFICATIONS
ELECTRONIC CUBER MODEL AC-EC 106
MAX.
40°C
35°C
5 bar
+10%
ice making capacity
NOTE .Withtheunitin"built-in"conditions,theiceproductionisgraduallyreducedinrespecttothe
levels shown in the graf, up to a maximum of 10% at room temperatures higher than 32 ° C.
The daily ice-making capacity is directly related to the condenser air inlet temperature, water
temperature conditions of the condenser air filter and age of the machine.
TokeepyourSCOTSMANCUBERatpeakperformancelevels,periodicmaintenancechecksmust
be carried out as indicated on Maintenance and Cleaning section of this manual.
AIR COOLED MODELS
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.
50
48
46
44
42
40
38
36
34
32
Kg. 10
21
32
38
°C
o
32 27 21 15 10 °C
o
51
49
47
45
43
41
39
37
35
Kg.
10
21
32
38
32 27 21 15 10 °C
o
WATER COOLED MODELS
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.

Page 4
Page 4
Stainless steel 1/3 23 Kg.
AC 106 AS Air
AC 106 WS Water
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 3.2 20 580 3 x 1.5 mm210
0144*
*NYA
AC 106 - CUBER
machine specifications
Cubes per harvest: 32 medium
* At 32/21 °C amb.-water
10.2
NYA
Bin Water req.
Capacity lt/24 HR

Page 5
Page 5
Stainless steel 1/3 23 Kg.
EC 106 AS Air
EC 106 WS Water
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 3.2 20 580 3 x 1.5 mm210
0144*
*NYA
EC 106 - CUBER
machine specifications
Cubes per harvest: 32 medium
* At 32/21 °C amb.-water
10.2
NYA
Bin Water req.
Capacity lt/24 HR

Page 6
Page 6
MIN.
10°C
5°C
1 bar
-10%
Important operating requirements:
Air temperature
Water temperature
Water pressure
Electr. voltage variations
from voltage rating
specified
on nameplate
SPECIFICATIONS
ELECTRONIC CUBER MODEL AC-EC 126
MAX.
40°C
35°C
5 bar
+10%
ice making capacity
NOTE .Withtheunitin"built-in"conditions,theiceproductionisgraduallyreducedinrespecttothe
levels shown in the graf, up to a maximum of 10% at room temperatures higher than 32 ° C.
The daily ice-making capacity is directly related to the condenser air inlet temperature, water
temperature conditions of the condenser air filter and age of the machine.
TokeepyourSCOTSMANCUBERatpeakperformancelevels,periodicmaintenancechecksmust
be carried out as indicated on Maintenance and Cleaning section of this manual.
75
70
65
60
55
50
45
Kg.
10
21
32
38
°C
o
32 27 21 15 10
WATER COOLED MODELS
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.
Kg.
32 27 21 15 10
AIR COOLED MODELS
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.
10
21
32
38
°C
o
°C
o
76
74
72
70
68
66
64
62
60
58
56
54
52
50
48
46

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Page 7
Stainless steel 1/2 39 Kg.
AC-EC 126 AS Air
AC-EC 126 WS Water
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 3.7 19 3 x 1.5 mm210
136*
810*
AC-EC 126 - CUBER (R404A version)
machine specifications
Cubes per harvest: 56 medium
* At 32°C ambient - 21°C water temperature
Dimensions:
HEIGHT (without legs) 920 mm.
HEIGHT (with legs) 1010 mm.
WIDTH 680 mm.
DEPTH 600 mm.
WEIGHT 75 Kgs.
13.8
12.3
Bin Water req.
Capacity lt/24 HR
920
740
580

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Page 8
Stainless steel 1/2 39 Kg.
AC-EC 126 AS Air
AC-EC 126 WS Water
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 5.3 26 3 x 1.5 mm210
266*
1248*
AC-EC 126 - CUBER (R134A version from s.n. 09013)
machine specifications
Cubes per harvest: 56 medium
* At 32°C ambient - 21°C water temperature
Dimensions:
HEIGHT (without legs) 920 mm.
HEIGHT (with legs) 1010 mm.
WIDTH 680 mm.
DEPTH 600 mm.
WEIGHT 75 Kgs.
16.7
15.2
Bin Water req.
Capacity lt/24 HR
920
900
730

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Page 9
MIN.
10°C
5°C
1 bar
-10%
Important operating requirements:
Air temperature
Water temperature
Water pressure
Electr. voltage variations
from voltage rating
specified
on nameplate
SPECIFICATIONS
ELECTRONIC CUBER MODEL AC-EC 176
MAX.
40°C
35°C
5 bar
+10%
ice making capacity
NOTE .Withtheunitin"built-in"conditions,theiceproductionisgraduallyreducedinrespecttothe
levels shown in the graf, up to a maximum of 10% at room temperatures higher than 32 ° C.
The daily ice-making capacity is directly related to the condenser air inlet temperature, water
temperature conditions of the condenser air filter and age of the machine.
TokeepyourSCOTSMANCUBERatpeakperformancelevels,periodicmaintenancechecksmust
be carried out as indicated on Maintenance and Cleaning section of this manual.
86
84
82
80
78
76
74
72
70
68
66
64
62
60
58
Kg.
10
21
32
38
°C
o
32 27 21 15 10 °C
o
WATER COOLED MODELS
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.
84
82
80
78
76
74
72
70
68
66
64
62
60
58
56
Kg.
10
21
32
38
°C
o
32 27 21 15 10 °C
o
AIR COOLED MODELS
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.

Page 10
Page 10
Stainless steel 3/4 48 Kg.
AC-EC 176 AS Air
AC-EC 176 WS Water
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 19.4 3 x 1.5 mm216
170
950*
AC-EC 176 - CUBER (R404A version)
machine specifications
Cubes per harvest: 56 medium
* At 32°C ambient - 21°C water temperature
Dimensions:
HEIGHT (without legs) 990 mm.
HEIGHT (with legs) 1090 mm.
WIDTH 680 mm.
DEPTH 600 mm.
WEIGHT 80 Kgs.
16.7
140
Bin Water req.
Capacity lt/24 HR
900
610
5.2
4.3

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Page 11
AC-EC 176 AS Air
AC-EC 176 WS Water Stainless steel 5/8 48 Kg.
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 29 3 x 1.5 mm216
204
1488*
AC-EC 176 - CUBER (R134A version from s.n. 14409)
machine specifications
Cubes per harvest: 56 medium
* At 32°C amb. / 21°C water temperature
Dimensions:
HEIGHT (without legs) 990 mm.
HEIGHT (with legs) 1079 mm.
WIDTH 680 mm.
DEPTH 600 mm.
WEIGHT 70 Kgs.
18.5
180
Bin Water req.
Capacity lt/24 HR
1000
800
6.5
6

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Page 12
MIN.
10°C
5°C
1 bar
-10%
Important operating requirements:
Air temperature
Water temperature
Water pressure
Electr. voltage variations
from voltage rating
specified
on nameplate
SPECIFICATIONS
ELECTRONIC CUBER MODEL AC/EC 206
MAX.
40°C
35°C
5 bar
+10%
ice making capacity
NOTE .Thedailyice-makingcapacityisdirectlyrelatedtothecondenserairinlettemperature,water
temperature conditions of the condenser air filter and age of the machine.
Production charts shown indicate the production of ACM models; ice production of ACL and ACS
models is 10% lower.
TokeepyourSCOTSMANCUBERatpeakperformancelevels,periodicmaintenancechecksmust
be carried out as indicated on Maintenance and Cleaning section of this manual.
AIR COOLED MODELS
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.
WATER COOLED MODELS
130
128
126
124
122
120
118
116
114
112
110
108
106
104
102
100
98
96
94
92
90
88
86
84
82
80
78
76
74
72
70
Kg. 10
21
32
38
°C
32 27 21 15 10 °C
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.
138
136
134
132
130
128
126
124
122
120
118
116
114
112
110
108
106
104
102
100
98
96
Kg.
10
21
32
38
°C
32 27 21 15 10 °C

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Page 13
Stainless steel 1/2 50 Kg.
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 4.7 19 950 3 x 1.5 mm216
280*
1400*
AC/EC 206 - CUBER (R404A version)
machine specifications
Cubes per harvest: 72 large / 106 medium / 198 small
* At 32°C amb. / 21°C water temperature
20.8
17.3
Bin Water req.
Capacity lt/24 HR
AC/EC 206 AS Air
AC/EC 206 WS Water
Dimensions:
HEIGHT (without legs) 779 mm.
HEIGHT (with legs) 859 mm.
WIDTH 1250 mm.
DEPTH 620 mm.
WEIGHT 115 Kgs.

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Page 14
AC/EC 206 AS Air
AC/EC 206 WS Water Stainless steel 1/2 50 Kg.
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 19.3 3 x 1.5 mm216
336*
1932*
AC/EC 206 - CUBER (R452A version)
machine specifications
Cubes per harvest: 72 large / 106 medium / 198 small
* At 32°C ambient / 21°C water temperature
18.4
16.5
Bin Water req.
Capacity lt/24 HR
Dimensions:
HEIGHT (without legs) 779 mm.
HEIGHT (with legs) 859 mm.
WIDTH 1250 mm.
DEPTH 620 mm.
WEIGHT 115 Kgs.
850
680
4
4.2

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Page 15
MIN.
10°C
5°C
1 bar
-10%
Important operating requirements:
Air temperature
Water temperature
Water pressure
Electr. voltage variations
from voltage rating
specified
on nameplate
SPECIFICATIONS
ELECTRONIC CUBER MODEL AC/EC 226
MAX.
40°C
35°C
5 bar
+10%
ice making capacity
AIR COOLED MODELS
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.
WATER COOLED MODELS
148
144
140
136
132
128
124
120
116
112
108
104
100
96
92
88
84
Kg.
10
21
32
38
°C
o
32 27 21 15 10 °C
o
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.
152
148
144
140
136
132
128
124
120
116
112
108
Kg.
10
21
32
38
°C
o
32 27 21 15 10 °C
o
NOTE .Thedailyice-makingcapacityisdirectlyrelatedtothecondenserairinlettemperature,water
temperature conditions of the condenser air filter and age of the machine.
Production charts shown indicate the production of ACM models; ice production of ACL and ACS
models is 10% lower.
TokeepyourSCOTSMANCUBERatpeakperformancelevels,periodicmaintenancechecksmust
be carried out as indicated on Maintenance and Cleaning section of this manual.

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Page 16
Stainless steel 1 70 Kg.
AC/EC 226 AS Air
AC/EC 226 WS Water
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 5.2 29 1180 3 x 1.5 mm216
330*
1800*
AC/EC 226 - CUBER (R404A / R452A version)
machine specifications
Cubes per harvest: 72 large / 106 medium / 198 small
* At 15°C water temperature
Dimensions:
HEIGHT (without legs) 1005 mm.
HEIGHT (with legs) 1085 mm.
WIDTH 1078 mm.
DEPTH 715 mm.
WEIGHT 120 Kgs.
24.2
19.2
Bin Water req.
Capacity lt/24 HR

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Page 17
Forward the completed self-addressed
registration card to Scotsman Ice srl factory.
11. Installthefourstandardlegssuppliedinthe
machine and adjust them to level the unit.
C. LOCATION AND LEVELLING
WARNING.ThisIceCuberisdesignedfor
indoorinstallationonly. Extendedperiods
of operation at temperatures exceeding
the following limitations will constitute
misuseunderthetermsoftheSCOTSMAN
Manufacturer’s Limited Warranty
resulting in LOSS of warranty coverage.
1. Position the unit in the selected permanent
location.
Criteria for selection of location include:
a)Minimumroomtemperature10°C(50°F)
and maximum room temperature 40°C (100°F).
b) Water inlet temperatures: minimum 5°C
(40°F) and maximum 35°C (90°F).
c) Well ventilated location for air cooled
models.
d) Service access: adequate space must
beleftforallserviceconnectionsthroughtherear
of the ice maker. A minimum clearance of 15 cm
(6")mustbeleftatthesidesoftheunitforrouting
cooling air drawn into and exhausted out of the
compartment to maintain proper condensing
operation of air cooled models.
2. Level the unit in both the left to right and
front to rear directions.
D. ELECTRICAL CONNECTIONS
See data plate for current requirements to
determine wire size to be used for electrical
connections.AllSCOTSMAN icemakersrequire
a solid earth wire.
All SCOTSMAN ice machines are supplied from
thefactorycompletelypre-wiredandrequireonly
electrical power connections to the wire cord
provided at rear of the unit.
Make sure that the ice machine is connected to
its own circuit and individually fused (see data
plate for fuse size).
Themaximumallowablevoltagevariationshould
not exceed -10% and + 10% of the data plate
rating.
Low voltage can cause faulty functioning and
may be responsible for serious damage to the
overload switch and motor windings.
NOTE. All external wiring should conform to
national, state and local standards and
regulations.
A. INTRODUCTION
This manual provides the specifications and the
step-by-stepproceduresfortheinstallation,start-
upandoperation,maintenance and cleaning for
the SCOTSMAN AC-EC series icemakers.
These Cubers are quality designed, engineered
and manufactured.
Their ice making systems are thoroughly tested
providing the utmost in flexibility to fit the needs
of a particular user.
These icemakers have been engineered to our
own rigid safety and performance standards.
NOTE .Toretainthesafetyandperformance
built into this icemaker, it is important that
installation and maintenance be conducted
in the manner outlined in this manual.
B. UNPACKING AND INSPECTION
1. Call your authorized SCOTSMAN
Distributor or Dealer for proper installation.
2. Visually inspect the exterior of the packing
and skid. Any severe damage noted should be
reported to the delivering carrier and a concealed
damage claim form filled in subjet to inspection of
the contents with the carrier’s representative
present.
3. a)Cutandremovetheplasticstripsecuring
the carton box to the skid.
b) Cut open the top of the carton and
remove the polystyre protection sheet.
c) Pull out the polystyre posts from the
corners and then remove the carton.
4. Remove the front panel of the unit and
inspectforanyconcealeddamage.Notifycarrier
ofyourclaimfortheconcealeddamageassteted
in step 2 above.
5. Check that refrigerant lines do not rub
againstor touchother linesorsurfaces, andthat
the fan blade moves freely.
6. Checkthatthe compressor fits snugly onto
all its mounting pads.
7. Remove all internal support packing and
masking tape.
8. Use clean damp cloth to wipe the surfaces
inside the storage bin and the outside of the
cabinet.
9. See data plate on the rear side of the unit
and check that local main voltage corresponds
with the voltage specified on it.
CAUTION. Incorrect voltage supplied to
the icemaker will void your parts
replacement program.
10. Remove the manufacturer’s registration
card from the inside of the User Manual and fill-
in all parts including: Model and Serial Number
taken from the data plate.
GENERAL INFORMATION AND INSTALLATION

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Page 18
Check voltage on the line and the ice maker’s
data plate before connecting the unit.
E. WATER SUPPLY AND DRAIN
CONNECTIONS
GENERAL
Whenchoosingthewatersupplyfortheicecuber
consideration should be given to:
a) Length of run
b) Water clarity and purity
c) Adequate water supply pressure
Sincewateristhemostimportantsingleingredient
in producting ice you cannot emphasize too
much the three items listed above.
Low water pressure, below 1 bar may cause
malfunction of the ice maker unit.
Water containing excessive minerals will tend to
produce cloudy coloured ice cubes, plus scale
build-up on parts of the water system.
WATER SUPPLY
Air Cooled Versions
Connect the 3/4" male fitting of the solenoid
waterinletvalve,usingtheflexibletubesupplied,
tothecoldwatersupplylinewithregularplumbing
fitting and a shut-off valve installed in an
accessible position between the water supply
line and the unit. If water contains a high level of
impurities, it is advisable to consider the use an
appropriate water filter or conditioner.
Water supply - Water cooled models
The water cooled versions of SCOTSMAN Ice
Makersrequiretwoseparateinletwatersupplies,
oneforthewatersprayedformakingtheicecubes
and the other for the water cooled condenser.
Connect the 3/4" GAS male fitting of the water
inlet, using the flexible tubing or a 3/8" O.D.
copper pipe, to the cold water supply line with
regular plumbing fitting and a shut-off valve
installed in an accessible position between the
water supply line and the unit.
WATER DRAIN
The recommended drain tube is a plastic or
flexible tube with 18 mm (3/4") I.D. which runs to
an open trapped and vented drain.
WATER DRAIN - WATER COOLED MODELS
Connect the 3/4" male fitting of the condenser
water drain, utilizing a second flexible hose, to
the open trapped and vented drain.
NOTE. Thewatersupplyandthewaterdrain
must be installed to conform with the local
code. In some case a licensed plumber and/
or a plumbing permit is required.
WATER DRAIN - EC version
The water can be pumped out up to 1.5 m rise
or
to 30 m on horizontal length.
F. FINAL CHECK LIST
1. Is the unit in a room where ambient
temperatures are within a minimum of 10°C
(50°F) even in winter months?
2. Is there at least a 15 cm (6") clearance
around the unit for proper air circulation?
3. Is the unit level? (IMPORTANT)
4. Have all the electrical and plumbing
connections been made, and is the water
supply shut-off valve open?
5. Hasthevoltagebeentestedandchecked
against the data plate rating?
6. Has the water supply pressure been
checked to ensure a water pressure of at
least 1 bar (14 psi).
7. Check all refrigerant lines and conduit
lines to guard against vibrations and possible
failure.
8. Havetheboltsholdingthecompressordown
been checked to ensure that the compressor is
snugly fitted onto the mounting pads?
9. Have the bin liner and cabinet been wiped
clean?
POWER
WATER INLET
WATER DRAIN
HAND DISCONNECT
SWITCH
WATER
FILTER
WATER
VALVE
POWER
WATER INLET
WATER DRAIN
HAND DISCONNECT
SWITCH
WATER
FILTER
WATER
VALVE

Page 19
Page 19
G. INSTALLATION PRACTICE
1. Hand shut-off valve
2. Water filter
3. Water supply line (flexible hose)
4. 3/4" male fitting
5. Vented drain
6. Open trapped vented drain
7. Drain fitting
8. Main switch
9. Power line
WARNING. This icemaker is not designed for outdoor installation and will not function in
ambient temperatures below 10°C (50°F) or above 40°C (100°F).
This icemaker will malfunction with water temperatures below 5°C (40°F) or above 35°C
(90°F).
1
23
4
5
6
7
8
9
10. Has the owner/user been given the User
Manual and been instructed on the importance
of periodic maintenance checks?
11. Has the Manufacturer’s registration card
been filled in properly? Check for correct model
and serial number against the serial plate and
mail the registration card to the factory.
12. Has the owner been given the name and
thephonenumberoftheauthorizedSCOTSMAN
Service Agency serving him?

Page 20
Page 20
START UP
Afterhavingcorrectlyinstalledtheicemakerand
completed the plumbing and electrical
connections,performthefollowing“Start-up”pro-
cedure.
A. Turn the unit ON by the main switch. Unit
will start up in charging cycle mode.
NOTE. Every time the unit returns under
power, after having been switched off, the
water inlet valve, the hot gas valve and the
water drain valve get energized for a period
of 5 minutes, thus to admit new water to the
machine sump reservoir to fill it up and,
eventually,towash-offanydirtthatcanhave
deposited in it during the unit off period
(Fig.1).
B. During the water filling operation, check to
seethattheincomingwaterdribbles,throughthe
evaporator platen dribbler holes, down into the
sump reservoir to fill it up and also that the
OPERATING INSTRUCTIONS
incoming surplus of water flows out through the
overflow pipe into the drain line.
During the water filling phase the components
energized are:
THE WATER INLET SOLENOID VALVE
THE HOT GAS SOLENOID VALVE
THE WATER DRAIN SOLENOID VALVE (NOT
IN AC/EC 106).
NOTE. If in the 5 minutes lenght of the water
filling phase the machine sump reservoir
does not get filled with water up to the rim of
the overflow pipe, it is advisable to check:
1.Thewaterpressureofthewatersupplyline
thatmustbeatleast1bar(14psig)Minimum
(Max 5 bar-70 psig).
2.The filtering device installed in the water
line that may reduce the water pressure
below the Minimum value of 1 bar (14 psig).
3. Any clogging situation in the water circuit
like the inlet water strainer and/or the flow
control.
FIG. 1
16
15
13
2
1
7
8
9
10
3
4
5
6
11
12
Rx Tx
WATER IN VALVE
HOT GAS VALVE
COMPRESSOR
FAN MOTOR
WATER PUMP
- EVAPORATOR
- CONDENSER
TEMPERATURE SENSORSBIN
TRANSF.
DATA
PROCESSOR
ELECTR.
TIMER
DIP
SWITCH
ELECTRONIC CARD
L
N
RELAYS
RELAY
TRIAC
WATER DRAIN VALVE