1 Hints on the manual This handbook contains instructions for the installation and operation of door or side-mounted, bolt-on Cooling Units provided by Pfannenberg. In this manual, safety recommendations and other information are structured as follows. If the measures described in the following are not strictly observed there is danger to life and health.
(Also refer to warranty 16 Any damage must be reported immediately to the forwarding agent Moreover, the latest edition of the "Pfannenberg After Sales Service Declaration" shall apply. •Before disposing of packing material ensure that it does not contain any loose components.
6 Safety Cooling units produced by Pfannenberg are designed for use in dissipating heat from switch cabinets (IP 55). The cooling unit is only suitable for installing on the stationary operation. Only the authorized specialist can work on the cooling system and electrical components.
2. General inside control temperature: 25℃~45℃ 3. Start the heater at 5℃ and stop at 15℃ (optional) 4. Energy- saving mode for internal fan 5. RS 485 remote communication 6. 4~20 mA analogue output 7. Start-up self-check and real-time self-check 8.
Excessive condensation can occur if, for example, the switch cabinet is not sealed or if the internal temperature of the switch cabinet is frequently below the dew point. Please check the sealing of the switch cabinet, if there is excessive condensate during the normal operation.
8.2 Spare parts Please order your spare parts only with the Pfannenberg-parts-number. DTI8161 IC DTI8165 DTS8165 Spare parts DTS8161 IC 18861100014 18861100010 18861100000 Internal fan 18861100014 18861100015 18861100001 18861100001 External fan 18861100015 18860200008 18860200008 18860200011 Cover(RAL7035) 18860200011 18860200012 Cover(VAH) 18860200013...
Drilling template 8.4 Airflow principle 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 the wall is at least 200mm;...
8.5 Technical Data Cooling data DTI/DTS 8161 IC Cooling capacity at A35/A35 * 1000 W Cooling capacity at A50/A35 * 860 W Refrigerant type R 134a * Refrigerant amount 320 g * Thermostat setting, (factory set) +35°C (+95°F) failure indication: Enclosure internal temp. (factory set) >...
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Cooling data DTI/DTS 8165 IC Cooling capacity at A35/A35 * 1500/1550 W Cooling capacity at A50/A35 * 1150/1165 W Refrigerant type/ Refrigerant amount * R 134a/350 g Thermostat setting, (factory set) +35°C (+95°F) failure indication: Enclosure internal temp. (factory set) >...
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Model DTI/DTS 8161 IC Cooling capacity at A35/A35 * 1000/1100 W Cooling capacity at A50/A35 * 860/920 W Refrigerant type/ Refrigerant amount * R 134a/320 g Thermostat setting, (factory set) +35°C (+95°F) failure indication: Enclosure internal temp. (factory set) > +50°C (+122°F) Enclosure internal temp.
* ID Plate Information °) With application of filter mats (option) cooling performance reduced. °°) need additional electrical terminal space 60mm 9 Installations 9.1 General •For effective cooling & ventilation, correct installation & ventilation of the cooling unit is very important. •The distance must be kept at least 500mm between units or the unit to the wall.
1 Cooling unit DTI 2 switch cabinet wall or door 3 Snap fastener 4 flat gasket 5 spring shim 6 bolts 7 thread rod 8 nut •It must fix the M8 nut when strike it on the top of housing during installing the tooling unit. •Clamp the cable as shown in the connection diagram (see back of unit) to the plug (componet pack) and connect to the unit.
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Electrical connection port of cooling unit: Port name Serial number Symbol Definition Cable size Mains “L” Mains “N” Mains “PE” Max 2.5mm²/ AWG14 Free Door contact Power fault signal Max 1.0mm²/ AWG18 Free Device fault signal Lout 1+ 20mA Humidity current output“+” Lout 1- 20mA Humidity current output“-”...
cooling unit. Make sure that no strong interfenrence sources surrouding the communication wires. Connect each • cooling unit’s (+, -, PE) terminal correctly. Please follow the wiring diagram, it will damage the equipment with wrong wiring. No external voltage may be applied! 10 Operating condition •The voltage must be within 230 ±...
11.2 Operation display The cooling unit is provided with an operation display,after the power supply is switched on, then cabinet internal temperature is shown,This indicates the unit works properly. If there is a failure or an alarm, the alarm lamp will be turned on and accompanied by an alarm sound, which makes it easier to diagnose the cooling unit.
the cooling unit will open the failure contact and the alarm code will be shown on the display. (See Section 15 for trouble shooting). • Device fault signal X51—1, 2pin is NC, it closes when power supply is on without alarm, a fault at the cooling unit will open the failure contact and the alarm code will be shown on the display.
• Using ”▲” or “▼”, user can select the following parameters on second level munu: Temperature setting “- tP-”, MODBUS setting “-Co-”, alarm “-AL-”, power setting”-Po-”, time setting”-tt-”, digital value “-dg-”, analog value “-Ag-”, Parameter “-Pa-”, history warning “-hS-”. Select a parameter and press “Select” to enter sub- level menu, user can select each parameter cyclely by using”▲”...
protocol RTU mode. (See appendix II) The cooling unit can be remotely monitored and controlled. For further support you may ask our service team for technical solution. 13 Cleaning and Maintenance Please cut off the cooling unit’s power before carrying out any cleaning or maintenance operation. 13.1 Cleaning The operation efficiency and reliability of the equipment will be improved by periodic cleaning and maitenance, call our service team for further service cooperation.
persons cannot start the cooling unit. When the cooling unit is no longer needed, it must be disposed of by authorized personnel in accordance with all applicable environmental protection regulations. (See section 4) 15 Trouble shooting In spite of careful maintenance, the equipment may still have a failure sometime. The real-time self-check function help diagnose the failure.
* Parameters user may change according to actual need. °) Parameters preset already. Before changing these parameters, shall get consent from manufacturer, random change may lead to malfunction of the unit. The high temperature alarm point is 15 ℃ higher than “t1”. The high temperature alam goes off when internal temperature is 5 ℃...
Appendix Ⅲ Baud rate: Communication protocol Modbus Rtu Slave Code 1200 2400 Baud rate 4800 9600 19200 38400 Random change to parameters may lead to malfunction of the unit and hence render the warranty null and void. 685408006D...
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