1 Hints on the manual This handbook contains instructions for the installation and operation of door and side-mounted, built-in Cooling Series Units provide by Pfannenberg (PCN). Hint The technical specifications for each machine along with additional information on assembly, connections and operation are contained in a separate sheet.
Especially pay attention to loose parts, dents, scratches, visible loss of oil etc. Any damage must be reported immediately to the forwarding agent (follow the instructions in "Rules for Damage Claims"). Moreover, the latest edition of the "Pfannenberg After Sales Service Declaration" shall apply.
6 Safety Cooling units produced by Pfannenberg are designed for application dissipating heat from switch cabinets (IP 54). The cooling unit is only suitable for installing on the stationary operation. Only the authorized specialist can be work on the cooling system and electrical components.
Please refer to the attached technical specification for the details function of the cooling unit. 7.2 Operating principles The compressor (1) compresses the refrigerant until high pressure is achieved. During this process temperature increases. In the condenser (2) heat is dissipated to ambient air, the coolant becoming liquid. The condenser fan (5) of the compensate takes ambient air in through the condenser, and then it releases the air.In the expansion valve (3) the pressure of the coolant drops.
8.1 Circuit Diagram 8.2 Spare parts Please order your spare parts only with the Pfannenberg-parts-number. Spare parts DTI 8031ES DTI 8041ES DTI 8241ES Internal fan 18861100017 18861100018 18861100019 External fan 18861100017 18861100019 18861100020 18861200003 18861200007 Compressor 18861200007 18864000004 18864000006 Internal fan capacitor...
8.3 Installation Hole DTI 8031ES Effect view of the sealing Explosive view of the sealing Door or side panel of cabinet Door or side panel of cabinet Cut out Dimension 308 (Outline of the unit) 685408028C...
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DTI 8041ES Effect view of the sealing Explosive view of the sealing Door or side panel of cabinet Door or side panel of cabinet Cut out Dimension (Outline of the unit ) 685408028C...
8.4 Airflow principle Caution : Read this manual completely and carefully before installing the unit. This manual is an integral part of the scope of delivery and must be kept until the unit is disposed of. Prior to mounting, ensure that the clearance of the units to each other and to the wall is at least 200mm; air inlet and outlet are not obstructed on the inside of the enclosure.
8.5 Technical Data Cooling data DTI 8031ES Cooling capacity at A35/A35 * 500 / 530 W Cooling capacity at A50/A35 * 285 / 330 W Refrigerant type * R 134a Refrigerant amount * 200 g Internal setting temerature (factory setting) +35°C (+95°F) High temperature alarm (factory setting) >...
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Cooling data DTI 8041ES Cooling capacity at A35/A35 * 800 / 900 W Cooling capacity at A50/A35 * 550 / 650 W Refrigerant type */ Refrigerant amount * R 134a/300 g Internal setting temerature (factory setting) +35°C (+95°F) High temperature alarm (factory setting) >...
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Option: 30-110W (A35/A35 ca. 70W) Dimensions Height*Width 970 mm*442 mm Depth with cover (standard) 195 mm Installation depth DTI °°) 85 mm Weight DTI 8241ES 230V DTI 8241ES 400V 25.5 kg 33.5 kg CM Weight Option: 0.5kg Installation attitude vertical Unit construction...
9 Installations 9.1 General •In order to keep the cabinet’s proper ventilation, it is important to select the correct installation place for the cooling unit. •It must be keep the distance at 200mm at least for the single units or the unit and the wall. •The cooling unit’s electrical connection terminal to be reserved at least 40mm space and the electrical components shall not impede air circulation in the internal cabinet.
1 Cooling unit DTI 5 springs shim 2 switch cabinet wall or door 6 sealing strip 3 snap-fastener 7 bolts 4 flat gasket 8 sealing strip 5) It must fix the M8 nut when strike it on the top of housing during installing the tooling unit. 6) Clamp the cable as shown in the connection diagram (see back of unit) to the plug (component pack) and connect to the unit.
Caution : The cooling unit may be damaged if the voltage is too high. It’s nominal voltage is 230V or 400V. Door contact: In order to avoid any disruptive influences, it is recommended that a sheathed cable with twisted pair leads be used.
The cooling unit can only run in the case of installing the front cover, otherwise it will be damaged by poor heat dissipation. 11.2 Operate the display The cooling unit is provided with an operation display. “0.0℃” is displayed for 3s after the supply power is switched on, then internal temperature is shown.
11.6 Equipment fault Failure contact X54—1,2pin is NC, it close when power supply without alarm, a fault in the cooling unit will cause the breaking and show the alarm code. (See Section 15). 11.7 Self-check function The cooling unit has functions of power-on self-check, and real-time self-check. Power-on self-check function is power-on testing mode.
1. View Parameters In the home page, press ”Select” for 3s, operation display shows “SEE”, press ”Select” again, using ”▲” “▼”, user can select following parameters in cycle: ”pb1”, ”t1”, ”dor”, “IFR”, “EFR”, “Con”, “ALr”, at any parameter, press ”Select” again, corresponding value will be shown, Press “Mode” to go back to previous menu, or wait 5min to go back to home page.
6) Put in back the external cover 7) Connect the power and observe the self-check function to make sure the equipment is running properly. Caution : Protect the electric components against leakage Caution : Protect the heater exchanger to damage Don’t use any pointed or Sharp-edged objects.
1) If alarm AL02, cooling until stop work; 2) Make sure internal fan and external fan work normally; 3) Make sure compressor work normally; Al03 High temperature 4) Check condenser if it’s dirty and blocked; 5) Check internal fan air channel; 6) Check heat load.
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Cabinet door open, 0 means alarm, 1 means normal AL03 High temperature, 0 means alarm, 1 means normal * means the parameters can change by user. Caution: Please don’t change any unmentioned parameter without authorization, otherwise the equipment will not work properly. www.pfannenberg.com/disposal 685408028C...
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