Saginaw Control & Engineering SCE-AC5100B460V User manual

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SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL
1. User Manual ............................................................................................p. 2
2. Legal Regulations...................................................................................p. 2
3. Safety Instructions .................................................................................p. 3
4. Functional Principle ...............................................................................p. 4
5. Technical Data.........................................................................................p. 5
6. Performance Graph ................................................................................p. 6
7. Mounting..................................................................................................p. 7
8. Mounting Principle .................................................................................p. 7
9. Cutout Dimensions.................................................................................p. 8
10.Dimensions (H x W x D) .........................................................................p. 8
11. Electrical Connection.............................................................................p. 9
12. Controller Programming........................................................................p. 9
13.Wiring Diagram .......................................................................................p. 10
14.Taking Into Operation.............................................................................p. 12
15.Repair.......................................................................................................p. 12
16.Maintenance & Cleaning ........................................................................p. 13
17.Transport & Storage ...............................................................................p. 13
18.Parts Supplied.........................................................................................p. 13
19. Warranty / Limits of Liability .................................................................p. 14
User Manual SCE-AC5100B460V, SCE-AC5100B460VSS & SCE-AC5100B460VSS6

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SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL
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1. User Manual
2. Legal Regulations
This instruction manual contains information and instructions to enable the user to work safely, correctly and economically
on the unit. Understanding and adhering to the manual can help one:
• Avoid any dangers
• Reduce repair costs and stoppages
• Extend and improve the reliability and working life of the unit
PLEASE ENSURE TO USE THE RIGHT VERSION OF THE INSTRUCTION MANUAL SUITABLE FOR YOUR UNIT
Conditions of Use
The unit is to be used exclusively for the dissipation of heat from control cabinets and enclosures in order to protect
temperature sensitive components in an industrial environment. To meet the conditions of use, all the information and
instructions in the instruction manual must be adhered to.
General Danger
Indicatescompulsorysafetyregulationswhicharenotcoveredbyaspecicpictogramsuch
as one of the following.
High Electric Voltage
Indicates electric shock danger.
Important Safety Instruction
Indicates instructions for safe maintenance and operation of the unit.
Attention
Indicates possible burns from hot components.
Attention
Indicates possible damage to the unit.
Instruction
Indicates possible danger to the environment.
Liability
The information, data and instructions contained in this instruction manual are current at the time of going to press. We
reserve the right to make technical changes to the unit in the course of its development. Therefore, no claims can be
accepted for previously delivered units based on the information, diagrams or descriptions contained in this manual. No
liability can be accepted for damage and production caused by:
• Disregarding the instruction manual
• Operation error
• Inappropriate work on or with the unit
• Theuseofnon-speciedsparepartsandaccessories
• Unauthorizedmodicationsorchangestotheunitbytheuserorhispersonnel
Saginaw Control & Engineering is only liable for errors and omissions as outlined in the guarantee conditions contained in
the main contractual agreement. Claims for damages on any grounds are excluded.

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3. Safety Instructions
Upon delivery the unit is already meeting current technical standards therefore it can be safely taken into operation. Only
trained specialists are allowed to work on the unit. Unauthorized personnel must be prohibited from working on the unit.
Operating personnel must inform their superiors immediately if any malfunction of the unit becomes apparent.
Please note that before starting to work on or with the unit, a procedure must be carried out inside the cabinet on which the
unit is to be mounted.
Before commencing work inside the cabinet, the control cabinet manufacturer’s instruction must be read with regards to:
• Safety instructions
• Instructions on taking the cabinet out of operation
• Instructions on the prevention of unauthorized cabinet reconnection
Theelectricequipmentmeetsthevalidsafetyregulations.Onecannddangerousvoltage(above50VACorabove100V
DC):
• Behind the control cabinet doors
• On the power supply in the unit housing
The units have to be fused according to the type plate and the wiring diagram. Switch the unit off immediately if the electric
power supply is interrupted.
Danger Through Incorrect Work on the Unit
Only specialized personnel are allowed to maintain and clean the unit. Regular maintenance
andcleaningmustbekept inorderto ensurethatthe unitremainsin perfectworkingcondition
and has a long working life.
Danger from Electric Voltage
Only specialized personnel are allowed to maintain and clean the unit. The personnel must
ensure that for the duration of the maintenance and cleaning, the unit is disconnected from
the electrical supply.
Attention
Damage to the unit through the use of inappropriate cleaning materials. Please do not use
aggressive cleaning material.
Instruction
Damage to the environment through unauthorized disposal. All spare parts and associated
material must be disposed of according to the environmental laws.

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4. Functional Principle
The unit functions on the principle of the compression refrigerator. The main components are: refrigerant compressor,
condenser, choke and evaporator. These four components of the refrigerant plant are connected with each other by pipes
toformahermeticallysealedsysteminwhichtherefrigerant(R134a)circulates.
1. Air Intake, Cabinet Side
2. Radial Fan, Cabinet Side
3. Evaporator
4. Air Outlet, Cabinet Side
5. Compressor
6. Air Intake, Ambient Side
7. Radial Fan, Ambient Side
8. Condenser
9. Air Outlet, Ambient Side
10. Filter Dryer
11. Expansion Valve

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5. Technical Data
Part Numbers SCE-AC5100B460V
SCE-AC5100B460VSS
SCE-AC5100B460VSS6
Cooling Capacity @ 95°F / 95°F 5100 BTU (1494 Watts)
Cooling Capacity @ 131°F / 131°F 1520 BTU (1500 Watts)
Heating Capacity 1000 W (optional)
Compressor Reciprocating Compressor
Refrigerant R134a
Refrigerant Charge 14.00 oz
Max. Pressure 348 psig
Operating Temperature Range -4°F - 131°F
Max. Air Volume Flow Ambient Air Circuit: 385 cfm
Cabinet Air Circuit: 235 cfm
Mounting External
Housing Material Mild Steel, Powder Coated
SS: Stainless Steel AISI 304
SS6: Stainless Steel AISI 316
Dimensions (H x W x D) 45.28 x 15.55 x 10.63 inch
Weight 113 lbs
Cutout Dimensions 12.40 x 10.40 inch
12.40 x 8.30 inch
Rated Operating Voltage / Frequency 400/460 V - 50/60 Hz
Rated Current @ 95°F / 95°F 2.5 A
Starting Current 8 A
Max. Current 3.2 A
Power Consumption @ 95°F / 95°F 880 W
Max. Power Consumption 1.29 kW
Fuse Rating 6A (T)
Circuit Breaker - MCB Type D or K Slow Acting 6A Slow Acting
Connection Connection Terminal Block
NEMA Protection Class NEMA 3, 3R, 4 & 12
SS: NEMA 3, 3R, 4, 4X & 12
Approvals CE / cURus
Industry Standards IS19
SS: IS20
Sound Level at 1.5 meters 70 db(A)
Max Voltage at Door Switch 5 A DC

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6. Performance Graph
Enviro-Therm®Air Conditioners 5100 BTU/HR (1494Watts)
Performance Curve
Ambient Temperature (°C)
Cooling Capacity
(BTU)
SCE-AC5100B230V, SCE-AC5100B120V, SCE-AC5100B460V
SCE-AC5100B230VSS, SCE-AC5100B120VSS, SCE-AC5100B460VSS
SCE-AC5100B230VSS6, SCE-AC5100B120VSS6, SCE-AC5100B460VSS6
Enclosure Air Temp
131°F/55°C 122°F/50°C 95°F/35°C 68°F/20°C
Cooling Capacity
(Watt)
Ambient Temperature (°F)
65 75 85 95 105 115 125 135
18 24 29 35 41 46 52 57
8000
7000
6000
5000
4000
3000
2000
2344
2051
1758
1465
1172
879
586

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7. Mounting
8. Mounting Principle
1. M6 Bolts
2. M6 Toothed Washers
3. M6 Flat Washers
4. Enclosure
5. Mounting Gasket
6. Cooling Unit
Always disconnect the power supply before opening the unit.
Heatload tobedissipatedfrom enclosureshouldnotexceedspeciccoolingoutput oftheunitatanycondition.When
selectingacoolingunit,alwaysallowforasafetymarginofatleast15%extracoolingoutputintheworstconditions.Air
inlets and outlets must be completely free from obstruction.
Ensurethatowsofairleavingandenteringthecoolingunit,internalandexternal,arenotobstructed.Coolingunitenclosure
air suction hole must be installed at the highest possible point. When installing the unit on a door ensure it can take the
weight.
Before drilling the enclosure, ensure the xing elements and couplings will not interfere with the equipment inside the
enclosureitself.Disconnectpowerbeforestartinganyworkinsidetheenclosure.Followingthis1:1ScaleDrillingTemplate,
drill the holes and make the required cuts on the enclosure. This template may have been affected by storage conditions,
please check this template by verifying values of the largest dimensions before drilling. Fit the sealing strip to the cooling
unit on the side connected to the enclosure and follow the installation diagram.

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9. Cutout Dimensions
15.55
45.28
10.70
4° SLOPE
.312
(x10)
.98
10.83
10.83
10.83
10.83
.98
15.55
13.98
12.40
1.57
10.43
.59
3.94
8.27
21.06
45.28
MOUNTING PATTERN
INTERNAL AIR
OUTLET
INTERNAL AIR
INLET &
ELECTRICAL
CONNECTIONS
10. Dimensions (H x W x D)

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11. Electrical Connection
12. Controller Programming
The cooling unit is used where heat needs to be dissipated from electrical control cabinets or similar enclosures in order to
protect heat sensitive components. The unit has two completely separate air circuits which ensure that the clean cabinet
air does not come into contact with the ambient air which may well be dirty or polluted. Control cabinet air conditioners can
dissipate large quantities of heat from sealed enclosures, such as control cabinets, into the ambient air and at the same time
reduce the cabinet internal temperature to below that of the ambient air.
Thecontrolcabinetairconditionercanfunctionwithoutproblemsinextremeambientconditions(e.g.dustyandoilyair)
withastandardoperatingtemperaturerangingbetween-4°Fand131°F.ThestatedcoolingcapacitiesareaccordingtoDIN
3168.
Door Switch
The unit can be switched on and off via a door contact switch. When delivered the door contact terminals are bridged on the
female connector. To connect the door contact switch remove the bridge and connect door contact switch. The contact must
be closed when the cabinet door is closed.
Controller
The unit is equipped with a temperature controller which regulates the function of the refrigeration cycle. In normal working
conditions, the display shows the temperature inside the enclosure. The cooling set point for the interior of the enclosure
(parameterSt/St1)ispre-setat95°F/35°Candcanbeadjustedbetween68°F/20°Cand122°F/50°C.
Theheatingsetpointforheatingoftheenclosure(parameterSt2)ispre-setat41°F/5°Candcanbeadjustedbetween
-4°F/-20°Cand66°F/19°C.
Theunit alsohasaHighTemperatureAlarmrelay(normallyclosed conguration)thatispre-set to switchonwhenthe
enclosuretemperatureexceeds131°F/55°C.Ifnecessary,thealarmrelaycongurationandsetpointcanbechangedvia
the controller parameters.
To Change the Cooling Set Point St/St1:
1. PresstheSETbuttonuntilSt/St1appearsonthedisplay.
2. UsetheUPandDOWNbuttonstoadjustthetemperaturesetting.
3. Press the SET button to save the new setting.
To Change the Heating Set Point St2:
1. PresstheSETbuttonuntilSt/St1appearsonthedisplayandreleasethebutton.
2. PresstheSETbuttonagainuntilSt2appearsonthedisplay.
3. UsetheUPandDOWNbuttonstoadjustthetemperaturesetting.
4. Press the SET button to save the new setting.
*Important Note:Whenchangingsettingsensurethat(St2+5K)<St1
The cooling unit manufacturer is in no way liable for any alterations the customer may make to the factory set parameters,
unless the manufacturer has authorized the customer in writing to change them.

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13. Wiring Diagram
Mc Compressor
Ma Ambient Fan
Mi Internal Fan
Cc Compressor Capacitor
Ca Ambient Fan Capacitor
Ci Internal Fan Capacitor
IH Internal Heater
TS Temperature Sensor
CE Condensate Evaporator
CH Compressor Heater
C Controller
AR Alarm Relay
X3 Transformer Connector
X4 Electrical Supply Connections
400 V 460 V
1 — 1 L1 - 460 V
2 LX - 400 V 2 —
3 L2 - 400/460 V 3 L2 - 400/460 V
4 Earth/Ground 4 Earth/Ground
5 — 5 —
6 P1 High Temp Alarm Contact 6 P1 High Temp Alarm Contact
7 P2 High Temp Alarm Contact 7 P2 High Temp Alarm Contact
8 T1 Door Switch Contact 8 T1 Door Switch Contact
9 T2 Door Switch Contact 9 T2 Door Switch Contact
Notes:
#1 Mi1 not used in SCE-AC5100B460V/SS
#2 X6 is plugged into X5 for units with heater
#3 Ma1 + Ca1 not used in SCE-AC5100B460V/SS
Mc
~Ma1
~
Ma
~
Mi
~Mi1
~
11 10 9 8 7 6 5 4 3 2 1
Cc
Ca1
Ca
#3
#2
X3
230V
230V
120/460V
400V
N
1
1
230/120/460V
400V
L2
X5
#2
CE
Ci
CH
85˚C
+t˚C
-t˚C
TS
X5
X6
IH
t
85˚C
AR
L1 LX PE P1 P2 T1 T2
987654321
C
X4
#1
L2

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Wiring of a single phase 120 V unit Wiring of a single phase 230 V unit
Wiring of a single phase 400 V unit
Wiring of a single phase 460 V unit
Ground
L2/N for 120 V
L1 for 120 V
Ground
L2/N for 230 V
L1 for 230 V
Ground
L2 for 400 V
LX for 400 V
Ground
L2 for 460 V
L1 for 460 V
High Temp Alarm
High Temp Alarm
Door Switch
Door Switch
High Temp Alarm
High Temp Alarm
Door Switch
Door Switch
High Temp Alarm
High Temp Alarm
Door Switch
Door Switch
High Temp Alarm
High Temp Alarm
Door Switch
Door Switch
Wiring of a single phase 120 V unit Wiring of a single phase 230 V unit
Wiring of a single phase 400 V unit
Wiring of a single phase 460 V unit
Ground
L2/N for 120 V
L1 for 120 V
Ground
L2/N for 230 V
L1 for 230 V
Ground
L2 for 400 V
LX for 400 V
Ground
L2 for 460 V
L1 for 460 V
High Temp Alarm
High Temp Alarm
Door Switch
Door Switch
High Temp Alarm
High Temp Alarm
Door Switch
Door Switch
High Temp Alarm
High Temp Alarm
Door Switch
Door Switch
High Temp Alarm
High Temp Alarm
Door Switch
Door Switch

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14. Taking Into Operation
15. Repair
Attention!
The unit can be damaged by lack of lubricant. To ensure that the compressor is adequately lubricated, the oil, which has
beendisplacedduringtransport,mustbeallowedtoowbackintoit.Theunitmustthereforebeallowedtostandforat
least30minutesbeforebeingconnectedtothemainsandtakenintooperation.Uponconnectiontheinternalfanwillstart
working. If the temperature inside the enclosure is higher than the set value of the controller, both the compressor and
external air fan start working. Once the air inside the enclosure reaches the set temperature, the compressor and external
fan will stop.
Theunitispre-setat95°F,whichissuitableformostoftheelectronicdevices.
IfDrainagerequired,usePVC10mm(3/8inch)IDHose.
Failure Condition Cause Solution
Unit Does
Not Cool
Internal fan does not work Power not connected. Verifypowersupply
Internal fan works, external fan
and compressor do not work
Enclosure temperature is
belowsettingtemperature(St) Verifyvaluesofparameter"St"
Door switch contact is open Verifydoorswitch
Controller does not work Replace controller
Internal fan works, external
fan and compressor do not
work Display shows alternating
"OFF"andtemperature
The sequence of the phases
inside the power supply
connector is incorrect
Change phases inside power
supply connector
External and internal fan work,
compressor does not work
Compressor motor electrical
failure
Verifyexternalfan,verify
ambient temperature, clean
condenser
Capacitor for compressor failed Replace capacitor
Compressor works, external
fan does not work External fan needs to be
replaced Replace external fan
Enclosure
Overheating
Compressorandfans(external
and internal) work all the time Unit cooling undersized Enclosure needs a bigger
cooling unit
Enclosure needs a bigger
cooling unit
Thermal compressor protector
triggered Verifyambienttemperature,
clean condenser
Refrigerant leakage Contactdealer/servicecenter
Excessive
Condensate
Door enclosure open Ambient air gets into the
enclosure
Ensure door is closed, add a
door switch and connect it to
controller
Door enclosure closed
Enclosure IP degree minimum
IP54 Seal openings on enclosure
Damaged/misplacedsealing
strip Repair strip accordingly

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17. Transportation & Storage
18. Parts Supplied
16. Maintenance & Cleaning
During transport and storage the cooling unit must be kept in the position marked on the box and at a temperature between
-40˚Fand158˚Fandarelativehumidityofmax.95%(at77°F).Checkthatthepackaginghasnotbeendamagedduring
transport.
1xAirConditioner
1xInstructionManualwithtechnicalinformation
1xMountingTemplatein1:1scale
1xInstallationpackcontaining:
10xM6Bolts
10xA6.4ToothedWashers
10xA6.4Washers
1xFemaleConnectorwithshortedwiredpositionsfordoorcontact
Saginaw Control and Engineering
95MidlandRoad
Saginaw,MI48638-5770
Phone:(989)799-6871
Fax:(989)799-4524
Always switch power supply off before starting any maintenance on the unit.
Anyrepairsthatmaybeneededmustonlybedonebyqualiedpersonnel.Thecoolingunitisalowmaintenancetypeand
formostenvironments,nolterisrequired.Ifanairlterisinstalled,checkitperiodicallyfordirtandclogs.Cleanorreplace
lterwhennecessary.
Disposal
ThecoolingunitcontainsR134arefrigerantandsmallquantitiesoflubricatingoil.Replacement,repairsandnaldisposal
must be done according to the regulations of each country for these substances.

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19. Warranty / Limits of Liability
All goods manufactured by SCE shall be warranted to be free of defects in material or workmanship for a period of two years
from the date of shipment. Should the product be proven to SCE to be defective, we shall option to repair or replace the
product. At no time will SCE reimburse purchaser for unauthorized rework on any product.
Air Conditioners & Heat Exchangers are warranted on parts and service for a period of two years from the date of shipment
bySaginawControlandsubjecttothefollowingconditionsandexclusions:
AllGoodsmustbeinstalledandoperatedaccordingtothefollowingspecications:Maximumvoltagevariationno
greaterthanplusorminus10%ofnominalrating;Maximumfrequencyvariationnogreaterthanplusorminus3
Hz.fromnominalrating;Mustnotexceedminimumandmaximumratedtemperatures;Mustnotexceed(BTU/Hr)
rating;Filtersmustbecleanedregularly;Mustbeinstalledandgroundedinaccordancewithallrelevantelectrical
andsafetycodes,aswellastheNationalElectricCodeandOSHArulesandregulations;Mustbeinstalledina
stationery application, free of vibration.
Our warranty does not warranty product that has been modied, subjected to abuse, negligence in operation or
maintenance, or if product is used in a manner that exceeds its designed capabilities and rating.
Warrantyrelatedclaimswillbereturnedtothefactoryforevaluationandnaldispositionoftheclaim,anyreplacementparts
will be invoiced at standard pricing and credit issued for the returned product. If the product has been found to have been
modied,subjectedtoabuse,negligenceinoperationormaintenance,orifproducthasbeenusedinamannerthatexceeds
its designed capabilities and rating, credit may be reduced, denied or additional cost may be assessed and passed on to the
purchaser, such as return freight.
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