OPERATING MANUAL CDP 115 Peltier cooling unit for waterbaths
Manufacturer and customer service Memmert GmbH + Co. KG Willi-Memmert-Straße 90–96 D-91186 Büchenbach Deutschland Phone: +49 (0)9122 925-0 Fax: +49 (0)9122 14585 E-mail: sales@memmert.com Internet: www.memmert.com Customer service: Service hotline: +49 (0)9171 9792 911 Service fax: +49 (0)9171 9792 979 E-mail: service@memmert.com Shipping address for repairs: Memmert GmbH + Co. KG Kundenservice Willi-Memmert-Str.
Waterbath cooling unit CDP 115 About this manual Purpose and target group This manual describes the construction, function, assembly and operation of CDP 115 Peltier cooling units for MEMMERT waterbaths. It is intended for use by trained personnel of the operator, who have the task of assembling and/or operating the unit. If you as the operator are asked to work on the unit, you should read this manual carefully before starting work on the unit. Familiarise yourself with the safety regulations.
Waterbath cooling unit CDP 115 Contents 1. Safety regulations 5 2. Description 5 2.1 2.2 2.3 2.4 Overview ............................................................................................................................. 5 Function ............................................................................................................................... 6 Technical data ....................................................................................................................
Waterbath cooling unit CDP 115 1. Safety regulations Warning! After removing covers, current-carrying parts may be exposed. You may get an electric shock if you touch these parts. Disconnect the mains plug before removing any covers. Any work inside the unit may only be performed by qualified electricians. Warning! If any fluid penetrates the housing this could cause electric shocks and short circuits. Do not immerse the unit in water and protect it from spray water.
Waterbath cooling unit CDP 115 2.2 Function The waterbath cooling unit CDP 115 makes it possible to cool the water in Memmert waterbaths to temperatures below room temperature. To do this, water is pumped from the waterbath, cooled by a Peltier module and then returned to the waterbath (Fig. 2). The cooling performance is constant and cannot be regulated.
Waterbath cooling unit CDP 115 2.4 Intended use The waterbath cooling unit CDP 115 may only be operated in conjunction with Memmert waterbaths of types W..7, W..10, W..14, W..22, W..29 and W..45. You can determine which type of waterbath you have from the nameplate on the waterbath. The waterbath cooling unit CDP 115 may only be used for pumping and cooling water, and may not be used with other liquids. 3.
Waterbath cooling unit CDP 115 C1 C C2 B I1/I2 A J1/J2 E Fig. 5 D Available assembly accessories (for a description, see Table 1) Accessories Fixtures and connection set Includes Item in Fig. 5 Tube suspender for waterbath W..7/10 A Tube suspender for waterbath W..14/22 B Tube suspender for waterbath W..29/45 with intermediate rail and 3 screws C, C1, C2 Fixing rail for attachment of cooling unit to waterbath W..7/10/14/22 D Fixing rail for attachment of cooling unit to waterbath W..
Waterbath cooling unit CDP 115 The following overview illustrates which of these accessories you require for which installation option: Waterbath model W..7 W..10 W..14/22 W..29/45 Table 2 Lid design of waterbath Required accessories (see Table 1) for ... ... Assembly on waterbath (see Fig. 3) ... Standalone unit (see Fig.
Waterbath cooling unit CDP 115 2. Unscrew the hinges of the original lid from the waterbath (Fig. 7); remove lid. 3. Pull the O-rings off the screws. 4. Place the special lid G/H/I/J onto the waterbath, push six screws through the hinges of the lid and push the O-rings onto the screws (Fig. 8). 5. Screw the special lid tight to the waterbath. G/H/I/J 1 2 Fig. 7 bath Unscrew standard lid from water- 3 4 Fig.
Waterbath cooling unit CDP 115 For waterbaths of the type W..7, W..10, W..14 and W..22: Place tube suspenders A and B onto the edge of the top right-hand side of the waterbath, as illustrated in Fig. 11 and Fig. 12. A/B W..7/10/14/22 Fig. 11 Fix tube suspender (A or B) onto waterbath Fig. 12 bath Tube suspender fixed to the water- 3.3.3 Attaching the cooling unit to the waterbath 1. Screw attachment rail D or E to the cooling unit with three screws, as shown in Fig. 13.
Waterbath cooling unit CDP 115 2. Attach cooling unit with the attachment rail on the rear of the waterbath into the bracket on the hinges of the special lid (Fig. 14) and move horizontally (Fig. 15), so that the bracket snaps into place (Fig. 16). Fig. 14 Attach cooling unit with attachment rail on the rear of the waterbath into the bracket on the hinges of the lid Fig. 15 Push cooling unit forwards so that the retaining bracket of the lid snaps into place in the bracket (see Fig. 16) Fig.
Waterbath cooling unit CDP 115 3.3.4 Connecting the cooling unit 1,5 cm Connecting tubes 1. Cut the tubes of the cooling unit to the lengths actually required for connection to the tube suspender. Do not confuse the supply and return tubes when doing this (markings on the tubes and Fig. 18): The rear tube of the cooling unit must be plugged onto the rear connection of the tube suspender. Keep the tubes as short as possible, but do not bend them. Store any excess tube material; it will still be required.
Waterbath cooling unit CDP 115 3.4 Standalone unit 1. Fix tube suspenders (A/B/C) to the waterbath as described in section 3.3.2 on page 10. 2. Place cooling unit to the right of the waterbath, as shown in Fig. 20. Make sure that the cooling unit is standing on its rubber feet when this is done (Peltier fan is facing upwards, the mains switch is facing to the rear). 3. Cut the tubes of the cooling unit to the lengths actually required for connection to the tube suspender.
Waterbath cooling unit CDP 115 4. Operation There must not be any coarse-grained particles in the waterbath. This could damage the cooling unit. 4.1 Switching on and off ► To start operating, switch on the cooling unit on the mains switch (Fig. 21). ► Use the mains switch to switch off the cooling unit. You can see that the unit is on if the fan is turning. If the fan is not turning, the automatic switch-off has probably been triggered (see section 4.3). 4.2 In operation Fig.
Waterbath cooling unit CDP 115 4.5 Troubleshooting ► ► ► ► ► Is the unit connected to the mains supply? If not, connect unit to the mains. Is the unit switched on? If not, switch unit on. Are all tubes correctly connected? If not, connect tubes. Is the waterbath heater switched on? If not, switch waterbath heater on. It is possible that the tubes in the tube suspender are blocked. In this case, replace the tube suspender. If the error cannot be eliminated, the cause is probably a defect in the unit.
Waterbath cooling unit CDP 115 6. EC Declaration of Conformity EC Declaration of Conformity Manufacturer´s name and address: MEMMERT GmbH + Co.
Memmert GmbH + Co KG | Postfach 1720 | D-91107 Schwabach, Germany | Tel. +49 (0) 9122-925-0 | Fax +49 (0) 9122-145-85 | Email: service@memmert.com | www.memmert.com 19.06.
