Page 21
Instruction Manual Roof Mounting Type OCA-S300AC-A100 Please read this brochure carefully before use and keep at hand for future reference. ≪Contents≫ 1. Safety Precautions ………………………………… page 2 2. Mounting …………………………………………… 3. Wiring ………………………………………………… 4. Operation 8-13 …………………………………………… 5. Alarm/Safeguard 14-15 …………………………………...
1. Safety precautions - This product is an industrial cooling unit for control panel. Do not use this for any other purposes. - Be sure to read these precautions carefully before starting operation for proper use. - All the warnings and cautions described herein must be observed in order to use the product safely. The marks and their meanings shown in this manual are as follows.
2. Mounting 2-1 Caution Danger For prevention of electrical shock, power supply to the control panel should be disconnected before installation work. Caution For installation, do not use any parts other than originally supplied ones. Failure to this may result in injury or breakdown of the cooling unit. Cut out the mounting surface of the enclosure as specified in the drawing of page 5.
Page 24
2-2 Mounting procedure (1) Process the mounting surface to cut out the openings in accordance with the respective mounting cutout drawings in Page 5. (2) Place the enclosed sealing plate on the bottom surface of the cooling unit. (3) Align the unit with the mounting cutout. (4) Insert the enclosed bolt into the mounting hole from outside of the unit.
Page 25
Cutouts OCA-S300AC-A100 < View from outside the panel >...
Page 26
2-3 Attachment of drain hose Moisture arisen from dehumidification by COOLCABI is discharged through a drain hose. Pay attention to the following notices in order to attach the drain hose properly. Caution If the drain hose is not attached properly, water collected in the drain catch inside the COOLCABI may overflow into the control panel interior.
3. Wiring Caution - Please observe all the local regulations in installation of the cooler. - Supply voltage should be as specified on the rating plate. - Allowable power fluctuation is +/- 10% from the rated voltage. Pay attention the maximum fluctuation should be stayed within this range.
3-3 Overcurrent protection Caution Do not forget to fit an earth leakage breaker. → Failure to this may lead to tripping of the earth-leakage breaker for the enclosure in the event of electric leakage. Selection of a breaker should be made so as to fit the type of the cooler. Earth leakage Breaker a.
Page 29
4-5 Parameter setting Normally, there is no need to change the setting of the parameters. If necessary, follow the procedures described below. Push the SET button for more than 3 seconds in a status that the internal temperature is indicated. The parameters are indicated in the following order.
Page 30
- Setting assignment of alarm output terminals Initial setting: 0 Setting range : 0-3 Alarm output terminals output once an alarm is detected. This is to assign the terminals for each alarm. 0 : Monitoring of alarm outputs 1 : Monitoring of cooling operation and alarm outputs 2 : Monitoring of need for power shutdown and restoration in the event of alarm output 3 : Monitoring of continued operation when an alarm occurs...
Page 31
Assignment table of Alarm output terminals [Ao:0] Terminals 1-2 Terminals 2-3 Operation behavior State of Operation behavior State of Description Description of cooling unit contact of cooling unit contact Contact changes Contact changes Alarm OFF CLOSE Alarm OFF OPEN over by the state of over by the state of Alarm ON OPEN...
Page 32
4-7 Operation mode setting Following to power connection, COOLCABI starts operation in the each setting mode. Factory setting for the setting temperature is 35℃ with 5℃ differential, which means the compressor starts for cooling when the temperature inside the enclosure reached 35℃and stops at 30℃.Four operation modes of continuous run and three different energy saving mode are available.
Page 33
(3)Energy-saving mode 2 The internal fan runs in conjunction with cooling operation. Effective for energy saving when cooling operation is stopped under a low temperature like winter season. The values in the ( ) show the default setting. Setting temperature (35℃) Differential temp.
5. Alarm/Safeguard 5-1 Alarm (1) E1:High Temp. Alarm When the internal temperature reaches 45 ℃ (factory setting), the alarm output terminals will break and make contact as set in AS and Ao to light alarm lamp (See the assignment table of alarm output terminals in page 11). The display shows the current internal temperature and E1 by turns to indicate that the internal temperature is too high.
5-2 Safeguard As a safeguard, this product is designed to stop operation under an abnormal current or temperature. In this event, the alarm E1 or E3 will occur. If water level of the drain pan became too high due to clogging of the primary drain pipe, the float switch provided in the drain pan terminates cooling for prevention of excessive drain water.
Page 36
6-2 Replacement of the external fan Fan replacement procedures are as follows. 1. Detach the front cover by removing 8 screws. 2. Remove 2 screws from the external fan. 3. Remove the power cord, terminal insulation rubber and the ground wire to detach the fan.
Page 37
6-4 Troubleshooting Failure Cause Remedy - Internal a. Circuit breaker tripped a. Turn on the breaker temperature b. Internal temperature is b. Check the temperature rises too much lower than the setting setting and the internal - Cool air is not temperature.
7. Specifications 7-1 Standard specification Model OCA-S300AC-A100 Type of mounting Roof Mounting Type Cooling capacity *1 300/350W Rated voltage Single phase 100VAC 50/60Hz Current Rated 2.9/2.6A consumption Max. 3.3/3.1A Starting current 7.1/6.6A Power Rated 245/255W consumption Max. 300/305W Compressor motor output 100W +20℃...
Page 39
7-2 A complete set of supply Model OCA-S300AC-A100 COOLCABI M6:4 Fixing bolt Washer M6:4 M6:4 Spring washer M6:4 Drain hose L joint Terminal board Packing Alarm explanation sheet Instruction manual 7-3 Outline drawing OCA-S300AC-A100V <Top view> Warm air Air from outside <Front view>...
8. Warranty period This product is covered with 1-year warranty from the date of shipment, provided that such warranty does not apply to damages malfunctions resulted from other than normal use. 9. Waste disposal This products uses chlorofluorocarbon (HFC) as a refrigerant which requires special handling for its disposal.
Need help?
Do you have a question about the Cool cabi OCA-S300AC-A100 and is the answer not in the manual?
Questions and answers