7.3 冷凝物 •在蒸发器上发生的冷却过程中,空气中的水分被凝聚成冷凝水。为了避免对电控柜及本制冷系统发生任 何损害,必须排出冷凝水。 冷凝水排放方式如下: • 带冷凝水蒸发器(可选)的制冷设备在正常情况下,可以蒸发掉水分。但为防止蒸发器故障后产生的冷 凝水溢流,请连接冷凝水管路,然后再通过水管排出。始终确保冷凝水正确地排出。在特定情况下有可能会 发生凝结水过量,例如,机柜不密封或机柜内部温度经常低于露点温度。 在正常运行过程中发生冷凝水过量,请检查机柜的密封。 我们建议安装一个门接触开关, 当机柜门被打开时机柜空调将自动关闭以防止过度冷凝水。 8 技术规格书 8.1 电气原理图 Int Fan 11-- C 12 dc IOut1 I T FA IOut C 12 Main C E T FA S485 12 dc C 11 11-- O Temp4 E t Fan H eater...
A35/A35: 2100 / 2360 W (无可选项) 可选: 冷凝水蒸发器 30-110W (A35/A35 ca. 70W) 型号 DTI 8665 IC LAP DTI 8665 IC LAP RS DTI 8665 IC CM LAP DTI 8665 IC CM LAP RS 电流 * 20 A 20 A 20 A...
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.
11. Start-up self-check and real-time self-check 12. IP55 protection class See section 8 Please refer to technical data for the detailed 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.
operation. In order to prevent the excessive condensate we recommend to install a door contact switch. It will switch off the cooling unit when the switch cabinet door is open. 8 Technical data 8.1 Circuit Diagram Int Fan 11-- C 12 dc IOut1 I T FA...
8.2 Spare parts Please order your spare parts only with the Pfannenberg-parts-number. Spare parts DTI 8665 Internal fan 18861100031 External fan 18861100032 Body Posture Sensor 18865500055 Compressor 18861200010 External fan capacitor 18864000000 Internal fan capacitor 18864000007 Compressor capacitor 18864000014 Filter dryer...
8.4 Installation for sealing Panel of cabinet Sealing Cooling unit 8.5 Airflow principle Read this manual completely and carefully before installing the unit. 685408025B...
A35/A35: 2100 / 2360 W (w/o options) Power consumption Condensate evaporator CM 30-110W (A35/A35 ca. 70W) Type DTI 8665 IC LAP DTI 8665 IC LAP RS DTI 8665 IC CM LAP DTI 8665 IC CM LAP RS 20 A 20 A 20 A 20 A...
* ID late Information ° Free blowing-in °° eed additional electrical terminal space 6 mm, total 12 mm. 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. •The cooling unit’s electrical connection terminal requires at least 60mm space and the electrical components shall not impede air circulation in the internal cabinet.
1. Cooling unit 2. Switch cabinet wall or door 3. Thread rod 4. Flat washer 5. Springs washer 6. Nuts 7. Bolts Vents for rain water and dust on the bottom of the cooling unit must not be blocked or sealed inside the cabinet, otherwise the water and dust drainage function would fail.
Page 35
Electrical connection port of cooling unit: ort 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 3/4/5/6 Free Device fault signal Lout 1+ 20mA Humidity current output“+” Lout 1- 20mA Humidity current output“-”...
lease follow the wiring diagram it will damage the equipment with wrong wiring. o e ternal voltage may be applied! 10 Operating condition •The voltage must be within 23 ± 1 % of the value indicated. •The frequency must be within ±3Hz of the value indicated. •Ambient temperature must be below 55℃.
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.
11.5 Human perception low noise mode When the human body sensing device senses movement of speed between 1. ~ 1.5 m/s near the cooling unit internal fan goes into low noise mode. ow noise mode runs with time relay to avoid frequent on and off. Unit e its from low noise mode when no further movement is detected.
12 Parameters View and Settings •Parameters of cooling unit can be monitored and set via operation display. •Cooling unit control system includes control board operation display. Sign Description ighting emark Self-check Self-check Available Cooling Cooling Available Heat unning Available Humidity ----- ot used Operation Display...
13 Cleaning and Maintenance lease 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. ay special attention to the following instructions: •Use a soft brush or compressed air Medium pressure to avoid damage to the fins .
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. If a fault occurs the display will show the relevant alarm code elow is the trouble shooting guide . Alarm codes list: Alarm code Description...
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 ℃ under alarm point. Appendix Ⅱ Postal address: Addres Attribute Explain 0x12 Boolean AL01...
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. www.pfannenberg.com/disposal 685408025B...
Need help?
Do you have a question about the DTI 8665 and is the answer not in the manual?
Questions and answers