User Manual SCE-AC1870B120V & SCE
Contents
1. Reciprocating Compressor R134a 5 29 oz 348 psig 4 F 131 F Ambient Air Circuit 185 cfm Cabinet Air Circuit 97 cfm External Mild Steel Powder Coated SS Stainless Steel AISI 304 1 4301 32 68 x 12 00 x 10 63 inch 71 5 Ibs 10 43 x 7 09 inch 10 43 x 6 30 inch 120 V 60 Hz 5 6A 20A 5 3 A 440 W 560 W 8 A T Connection Terminal Block NEMA 3 3R 4 amp 12 SS NEMA 3 3R 4 4X amp 12 CE cURus 1519 55 1520 SAGINAW CONTROL amp ENGINEERING A C USER MANUAL 6 Performance Graph Enviro Therm Air Conditioners 1870 BTU HR 548Watts Performance Curve SCE AC1870B230V SCE AC1870B120V SCE AC1870B460V SCE AC1870B230VSS SCE AC1870B120VSS SCE AC1870B460VSS Enclosure Air Temp e 131 F 55 C ome 122 F 50 C 95 F 35 C 68 F 20 C Ambient Temperature C 18 24 29 35 41 46 52 57 3000 E 879 2500 732 A gt Q E 2000 586 E a pm S2 S00 e 0 E die 1500 439 5 lt 1000 293 500 146 65 75 85 95 105 115 125 135 Ambient Temperature F back to top Your Enclosure Source SAGINAW CONTROL amp ENGINEERING A C USER MANUAL 7 Mounting Always disconnect the power supply before opening the unit Heat load to be dissipated from enclosure should not exceed specific cooling output of the unit at any condition When selecting a cooling unit always allow for a safety margin of at least 12. changes made to the parameters temporarily saved in the RAM will be cancelled and the previous settings restored 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 This manual is intended as quick reference for controller programming for a full controller manual or if you need to restore the factory parameters please go to our website to download the full manual or to locate your nearest servicing office back to top Your Enclosure Source SAGINAW CONTROL amp ENGINEERING A C USER MANUAL Notes 1 2 3 13 Wiring Diagram Compressor Ambient Fan Internal Fan Compressor Capacitor Ambient fan Capacitor Internal Fan Capacitor Internal Heater Temperature Sensor Condensate Evaporator Compressor Heater Controller Alarm Relay Transformer Connector Electrical Supply Connections 230V 1 L1 230V 3 N 120V 1 L1 120V 3 N 460V 1 L1 460V 3 L2 460V 400V 1 L1 400V 3 L2 400V Ci not used in SCE AC1870B120V SS X6 is plugged into X5 for units with heater Ma1 Ca1 not used in SCE AC1870B120V SS 112 41516171819 Your Enclosure Source AO9v Oc I A09Yv 0c L 0O c C VN back to top 10 SAGINAW CONTROL amp ENGINEERING A C USER MANUAL 14 Taking Into Operation Attention The unit can be damaged by lac
3. of Liability p 13 SAGINAW CONTROL amp ENGINEERING A C USER MANUAL 1 User Manual 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 Indicates compulsory safety regulations which are not covered by a specific pictogram such 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 A A A i2 2 Legal Regulations Liability The information data and instructions contained in this instruct
4. 5 extra cooling output in the worst conditions Air inlets and outlets must be completely free from obstruction Ensure that flows of air leaving and entering the cooling unit internal and external are not obstructed Cooling unit enclosure 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 fixing elements and couplings will not interfere with the equipment inside the enclosure itself Disconnect power before starting any work inside the enclosure Following this 1 1 Scale Drilling Template 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 8 Mounting Principle M6 Bolts M6 Toothed Washers M6 Flat Washers Enclosure Mounting Gasket oO a fF O N Cooling Unit back to top Your Enclosure Source SAGINAW CONTROL amp ENGINEERING A C USER MANUAL 9 Cutout Dimensions 12 00 7 10 43 um 47 787 INTERNAL AIR INLET amp ELECTRICAL CONNECTIONS 9 25 INTERNAL AIR OUTLET 13 80 MOUNTING PATTERN 10 Dimensions H x W x D I 12 00 4 SLOPE 10 70
5. OL amp ENGINEERING A C USER MANUAL 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 to form a hermetically sealed system in which the refrigerant R134a circulates Air Intake Cabinet Side Radial Fan Cabinet Side Evaporator Air Outlet Cabinet Side Compressor Air Intake Ambient Side Radial Fan Ambient Side Condenser Air Outlet Ambient Side Filter Dryer o N Oo WO DN Expansion Valve back to top Your Enclosure Source SAGINAW CONTROL amp ENGINEERING A C USER MANUAL 5 Technical Data Part Numbers Cooling Capacity 95 F 95 F Cooling Capacity 131 F 131 F Heating Capacity Compressor Refrigerant Refrigerant Charge Max Pressure Operating Temperature Range Max Air Volume Flow Mounting Housing Material Dimensions H x W x D Weight Cutout Dimensions Rated Operating Voltage Frequency Rated Current 95 F 95 F Starting Current Max Current Power Consumption 95 F 95 F Max Power Consumption Fuse Rating Connection NEMA Protection Class Approvals Industry Standards Your Enclosure Source SCE AC1870B120V SCE AC1870B120VSS 1870 BTU 548 Watts 1877 BTU 550 Watts 400 W
6. SAGINAW CONTROL amp ENGINEERING A C USER MANUAL CONTROL amp SCE ENGINEERING Your Enclosure Source 9 amp Thermal Source User Manual SCE AC1870B120V amp SCE AC1870B120VSS te MINUA 2 2 Legal Regulations 2 Safely MENS CUCU RIT mL 3 4 Funcuonal FUNC WONG p 4 De 7 5 6 Performance 6 FANE sense T p 7 MO UNUNG PTINCIDIE DU US ME p 7 9 Cutout DimenSionS CMS p 8 TU Dimensions x W x D cece cece ce aep pens RUE DES aee p 8 11 Electrical Connection ER Md RSNF KEDKRENUMEKIUS UI p 9 12 Controller Programming p 9 LS WMO DIAG AN ee eee 10 14 Taking Into 11 M Hopngfe p 11 16 Maintenance amp Cleaning p 12 17 Transport amp Storage p 12 16 uincere E p 12 19 Warranty Limits
7. ances 17 Transportation amp Storage During transport and storage the cooling unit must be kept in the position marked on the box and at a temperature between 40 F and 158 F and a relative humidity of max 95 at 77 F Check that the packaging has not been damaged during transport 18 Parts Supplied 1 x Air Conditioner 1 x Instruction Manual with technical information 1 x Mounting Template in 1 1 scale 1 x Installation pack containing 8 x M6 Bolts 8 x A6 4 Toothed Washers 8 x A6 4 Washers 1 x Female Connector with shorted wired positions for door contact Saginaw Control and Engineering 95 Midland Road Saginaw MI 48638 5770 Phone 989 799 6871 Fax 989 799 4524 sce saginawcontrol com back to top Your Enclosure Source SAGINAW CONTROL 8 ENGINEERING A C USER MANUAL 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 amp Heat Exchangers are warranted on parts and service for a period of two years from the date of shipment by Saginaw Control and subject to the following conditions and exclusions All Goods must be installed and operated according to the following spec
8. back to top Your Enclosure Source SAGINAW CONTROL amp ENGINEERING A C USER MANUAL 11 Electrical Connection 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 The control cabinet air conditioner can function without problems in extreme ambient conditions e g dusty and oily air with a standard operating temperature ranging between 4 F and 131 F The stated cooling capacities are according to DIN 3168 Door Switch The unit can be switched on and of 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 12 Controller Progamming 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 t
9. et the control cabinet manufacturer s instruction must be read with regards to e Safety instructions Instructions on taking the cabinet out of operation Instructions on the prevention of unauthorized cabinet reconnection The electric equipment meets the valid safety regulations One can find dangerous voltage above 50V AC or above 100V 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 and cleaning must be kept in order to ensure that the unit remains in perfect working condition 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 gt gt gt back to top Your Enclosure Source SAGINAW CONTR
10. he enclosure The controller set point for the interior of the enclosure parameter St St1 is pre set at 95 F and can be adjusted between 68 F and 122 F The controller heating set point for the heating of the enclosure parameter St2 is pre set at 41 F and can be adjusted between 4 F and 68 F The High Temperature Alarm parameter AH is preset at 131 F The High Temperature Alarm relay is delivered as normally closed H1 1 If you need to change it to normally open please modify value of parameter H1 1 2 Modifying Controller Parameters 1 Press the SET button for more than 3 sec if there are active alarms mute the buzzer The display shows the parameter code PS password 2 Only for parameters requiring password Press the SET button to access the password setting use the UP and DOWN buttons to scroll the numbers until displaying 22 default password to access the parameters press the SET button to confirm the password 3 Use the UP and DOWN buttons to scroll the parameters The LED corresponding to the category of parameters will be on 4 Press SET to display the value associated with the parameter 5 Increase or decrease the value using the UP or DOWN button respectively 6 Press SET to temporarily save the new value 7 Press the SET button for more than 3 sec to permanently save the new parameters and exit the parameter setting procedure If no button is pressed for 60 sec all
11. ifications Maximum voltage variation no greater than plus or minus 10 of nominal rating Maximum frequency variation no greater than plus or minus 3 Hz from nominal rating Must not exceed minimum and maximum rated temperatures Must not exceed BTU Hr rating Filters must be cleaned regularly Must be installed and grounded in accordance with all relevant electrical and safety codes as well as the National Electric Code and OSHA rules and regulations Must be installed in a stationery application free of vibration Our warranty does not warranty product that has been modified subjected to abuse negligence in operation or maintenance or if product is used in a manner that exceeds its designed capabilities and rating Warranty related claims will be returned to the factory for evaluation and final disposition of the claim any replacement parts will be invoiced at standard pricing and credit issued for the returned product If the product has been found to have been modified subjected to abuse negligence in operation or maintenance or if product has been used in a manner that exceeds 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 back to top Your Enclosure Source 13
12. ion 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 e Inappropriate work on or with the unit he use of non specified spare parts and accessories Unauthorized modifications or changes to the unit by the user or his personnel Saginaw Control amp 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 back to top Your Enclosure Source SAGINAW CONTROL amp ENGINEERING A C USER MANUAL 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 cabin
13. k of lubricant To ensure that the compressor is adequately lubricated the oil which has been displaced during transport must be allowed to flow back into it The unit must therefore be allowed to stand for at least 30 minutes before being connected to the mains and taken into operation Upon connection the internal fan will start 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 The unit is pre set at 95 F which is suitable for most of the electronic devices 15 Repair Failure Condition Soo Internal fan does not work Power not connected Verify power supply Encore Js Verify values of parameter St below setting temperature St y P Internal fan works external fan and compressor do not work Door switch contact is open Verify door switch Controller does not work Replace controller The sequence of the phases inside the power supply connector is incorrect Internal fan works external fan and compressor do not Not Cool work Display shows alternating OFF and temperature Unit Does Change phases inside power supply connector Verify external fan verify ambient temperature clean condenser Capacitor for compressor failed Replace capacitor Compressor works external External fan needs to be Rep
14. lace external fan fan does not work replaced Compressor and fans external Enclosure needs a bigger Unit cooling undersized and internal work all time cooling unit Enclosure Thermal compressor protector Verify ambient temperature Overheating Enclosure needs a bigger triggered clean condenser cooling unit Refrigerant leakage Contact dealer service center Ensure door is closed add a door switch and connect it to controller Excessive Enclosure IP degree minimum Condensate IP54 Seal openings on enclosure Door enclosure closed uw Repair strip accordingly Compressor motor electrical External and internal fan work failure compressor does not work Ambient air gets into the Door enclosure open enclosure back to top Your Enclosure Source 11 SAGINAW CONTROL amp ENGINEERING A C USER MANUAL 12 16 Maintenance amp Cleaning Always switch power supply off before starting any maintenance on the unit Any repairs that may be needed must only be done by qualified personnel The cooling unit is a low maintenance type and for most environments no filter is required If an air filter is installed check it periodically for dirt and clogs Clean or replace filter when necessary Disposal The cooling unit contains R134a refrigerant and small quantities of lubricating oil Replacement repairs and final disposal must be done according to the regulations of each country for these subst
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