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SAGINAW CONTROL & ENGINEERING  •  A/C USER MANUAL

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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

The electric equipment meets the valid safety regulations. One can 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 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.

Summary of Contents for Enviro-Therm SCE-AC1870B120V

Page 1: ...nting 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 13 14 Taking Into Operation p 15 1...

Page 2: ...tric 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...

Page 3: ...y regulations One can 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 pla...

Page 4: ...ke 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 1 Air Intake Cabi...

Page 5: ...04 SS6 Stainless Steel AISI 316 Dimensions H x W x D 32 68 x 12 00 x 10 63 inch Weight 71 5 lbs Cutout Dimensions 10 43 x 7 09 inch 10 43 x 6 30 inch Rated Operating Voltage Frequency 120 V 50 60 Hz R...

Page 6: ...apacity BTU SCE AC1870B230V SCE AC1870B120V SCE AC1870B460V SCE AC1870B230VSS SCE AC1870B120VSS SCE AC1870B460VSS SCE AC1870B230VSS6 SCE AC1870B120VSS6 SCE AC1870B460VSS6 Enclosure Air Temp 131 F 55 C...

Page 7: ...talled 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...

Page 8: ...ANUAL back to top 9 Cutout Dimensions 32 70 10 70 12 00 4 SLOPE 12 00 32 70 13 80 9 25 7 87 79 98 10 43 1 26 7 09 1 97 6 30 16 09 312 x8 47 MOUNTING PATTERN INTERNAL AIR OUTLET INTERNAL AIR INLET ELEC...

Page 9: ...closed 12 Controller Programming SET TEST BMS PRG R D 1 2 3 4 The cooling unit is intended to be used as a complementary accessory to larger industrial equipment The unit is used where heat needs to...

Page 10: ...ss Flashes when activation 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 Activ...

Page 11: ...high temperature alarm 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...

Page 12: ...no button is pressed for 10 seconds the display starts flashing and after 1 minute returns to the main display without saving changes l To increase scrolling speed press and hold the or button for at...

Page 13: ...e Sensor CE Condensate Evaporator CH Compressor Heater C Controller AR Alarm Relay X3 Transformer Connector X4 Electrical Supply Connections 1 L1 120V 2 3 L2 N 120V 4 Earth Ground 5 P1 High Temp alarm...

Page 14: ...B 14 SAGINAW CONTROL ENGINEERING A C USER MANUAL back to top...

Page 15: ...ing temperature St Verify values of parameter St Door switch contact is open Verify door switch Controller does not work Replace controller Internal fan works external fan and compressor do not work D...

Page 16: ...r 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 16 Maintenance Cleaning...

Page 17: ...ot 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 co...

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