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SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL

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Setting temperature units (°C / °F), low temperature alarm and high temperature alarm:

1. Press “PRG” button for 5 seconds to reach the modifiable parameter list.

2. Use ▲ or ▼ to reach the desired parameter:

• C18 for temperature unit of measure

• °C = 0

• °F = 1

• P25 for low temperature alarm threshold (default -10°C / +14°F)

• P26 for high temperature alarm threshold (d55°C / +131°F)

3. Press “SET” on the desired parameter to display the current value.

4. Use ▲ or ▼ to reach the desired value.

5. Pressing “SET” temporarily saves the new value and returns to the parameters list.

6. Repeat steps 2-5 to set other parameters.

7. Press “PRG” for 5 seconds to permanently save the new values.

Test Function

Different test functions can be used depending on the combination of keys pressed. Such tests run for

the duration of 4 minutes.

• “SET+▲” tests Compressor and Ambient Blower relays.

• “SET+▼” tests Alarms and Heater relays

All manuals and user guides at all-guides.com

Содержание ENVIRO-THERM SCE-HE18W120V

Страница 1: ... 6 8 Mounting p 7 9 Mounting Principle p 7 10 Cutout Dimensions p 8 11 Dimensions H x W x D p 8 12 Electrical Connection p 9 13 Controller Programming p 9 14 Wiring Diagram p 12 15 Taking Into Operation p 14 16 Repair p 14 17 Maintenance Cleaning p 15 18 Transportation Storage p 16 19 Parts Supplied p 16 20 Warranty Limits of Liability p 17 User Manual SCE HE18W120V All manuals and user guides at ...

Страница 2: ...rtant 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 2 Legal Regulations Liability The information data and instructions contained in this instruction manual are current at the time of going to pres...

Страница 3: ...find dangerous voltage above 50V AC or above 100V 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 ...

Страница 4: ... with the Heat Exchanger the clean air inside the control cabinet is prevented from mixing with the air outside which may well be unclean 5 Functional Principle Functional Principle The Heat Exchanger is a cooling device that creates a heat transfer through a large area of thin aluminum sheet metal folded up in the Heat Exchanger core by means of forced convection Used within an enclosure it uses ...

Страница 5: ...66 x 10 24 x 5 95 inch Weight 26 5 lbs Rated Operating Voltage Frequency 120 V 50 60 Hz Rated Current 1 40 A Starting Current 1 60 A Power Consumption 150 W Fuse Rating 3A T Time Delayed Slow Acting Circuit Breaker MCB Type D or K Slow Acting 3A Slow Acting Connection Cage Clamp Terminal Connector NEMA Protection Class NEMA 3 3R 12 Approvals CE cURus Industry Standards IS22 Max Voltage at Door Swi...

Страница 6: ...gers 18 W F Performance Curve Δ T C P BTU hr SCE HE18W120V Δ T F 0 10 20 30 40 50 60 70 80 5000 4500 4000 3500 3000 2500 2000 1500 1000 500 0 T Temperature difference between ambient and internal temperature P Heat Exchanger performance 18 12 7 1 4 10 16 21 27 All manuals and user guides at all guides com ...

Страница 7: ...ge Check Upon delivery the carton containing the unit must be examined for signs of transport damage Any transport damage to the carton could indicate that the unit itself has been damaged in transit which in the worst case could mean the unit will not function Location and Space Requirements The location of the cabinet must allow for sufficient air circulation to and from the unit The unit should...

Страница 8: ... to top 10 Cutout Dimensions 10 00 5 96 10 24 29 66 29 66 10 00 8 87 6 00 1 38 6 00 14 29 8 00 5 30 9 37 3 15 8 50 4 29 2 00 2 00 56 1 77 10 07 75 3 25 83 1 98 2 81 1 98 2 29 31 312 x6 11 Dimensions H x W x D All manuals and user guides at all guides com ...

Страница 9: ...does not come into contact with the ambient air which may well be dirty or polluted Enclosure cooling units can dissipate large quantities of heat from sealed enclosures such as electrical enclosures into the ambient air and at the same time reduce the cabinet internal temperature to below that of the ambient air The unit can function without problems in extreme ambient conditions e g dusty and oi...

Страница 10: ...tion is delayed or inhibited by protection times external disabling or other procedures in progress Flashes when alarms are active Signals operation of unit in heating mode Activated only by manual procedure Setting cooling set point St1 Setting heating set point St2 only for units supplied with internal heater 1 Press SET and display should show St1 and then the pre set value of St1 default 35 C ...

Страница 11: ... threshold default 55 C 131 F 3 Press SET on the desired parameter to display the current value 4 Use or to reach the desired value 5 Pressing SET temporarily saves the new value and returns to the parameters list 6 Repeat steps 2 5 to set other parameters 7 Press PRG for 5 seconds to permanently save the new values Test Function Different test functions can be used depending on the combination of...

Страница 12: ...0V 3 Earth Ground 4 5 P1 High Temp Alarm Contact 6 P2 High Temp Alarm Contact 7 T1 Door Switch Contact 8 T2 Door Switch Contact 1 2 3 4 5 6 7 8 9 10 11 CONTROLLER PK DOORT2 RD DOORT1 BK LIVE L BU NEUTRAL N GNYE EARTHE GY ALARM P2 BN ALARM P1 BU BK BN INTERNAL BLOWER BU BK GNYE GNYE BU BK BU BK BN EXTERNAL BLOWER BU GNYE GNYE 230V N 115V TRANSFORMER BN GY VL BU RD PK BK YE BK BK CONNECTOR 8 POLE 8 ...

Страница 13: ...B 13 SAGINAW CONTROL ENGINEERING A C USER MANUAL back to top L1 for 120 V Door Switch High Temp Alarm High Temp Alarm Door Switch L2 N for 120 V Ground All manuals and user guides at all guides com ...

Страница 14: ... Access plate sealing tape 16 Repair Failure Condition Cause Solution Unit Does Not Cool Internal fan does not work Power not connected Verify power supply Internal fan works external fan does not work Enclosure temperature is below setting temperature St Verify values of parameter St Door switch contact is open Verify door switch Controller does not work Replace controller Internal fan works exte...

Страница 15: ...cialist Fan Replacement The rated life expectancy of the fan is L10 30 000 hours under normal operating conditions To replace the internal or external fan please proceed with the following Remove the internal access panel by unscrewing the 10 fixing screws Disconnect the blower cables from the connectors Unscrew the four screws fixing the blower bracket to the cabinet Unscrew the fan from the brac...

Страница 16: ... the original packaging or in a packing case and must be strapped to a pallet If the unit cannot be returned in the original packaging please ensure that A space of at least 30 mm must be maintained at all points between the unit and the external packaging The unit must be firmly fixed in the packaging The unit must be protected sufficiently by shock absorbing padding hard foam corner pieces strip...

Страница 17: ...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 negl...

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