GRUNDFOS INSTRUCTIONS CMBE Installation and operating instructions Drinking Water System Component NSF / ANSI 61 NSF / ANSI 372
English (US) English (US) Installation and operating instructions 1. Limited warranty Original installation and operating instructions. CONTENTS Page 1. Limited warranty 2 2. Symbols used in this document 3 3. Introduction 3 4. 4.1 4.2 4.3 Approvals Delivery and handling Applications Identification 3 4 4 5 5. 5.1 5.2 5.3 5.4 5.5 Installation Mounting Cable entries Ensuring motor cooling Outdoor installation Drain holes 6 6 6 6 6 6 6. Electrical installation 6.
4. Approvals English (US) 2. Symbols used in this document Drinking Water Certifications Warning TM06 3626 0215 If these safety instructions are not observed, it may result in personal injury. Warning If these instructions are not observed, it may lead to electric shock with consequent risk of serious personal injury or death. UL Electrical The surface of the product may be so hot that it may cause burns or personal injury.
.1.1 Delivery Examine the pump carefully to make sure no damage has occurred during shipment. TM06 0794 0214 English (US) 4.1 Delivery and handling Fig. 1 CMBE Pos. Component 1 Diaphragm tank 2 Pressure gauge 0-145 psi (0-10 bar) 3 Five way fitting with integrated non-return valve 4 CME pump 5 Pressure sensor 4.1.2 Handling Caution The pump should remain the packing until installation. The packing is specially designed to protect it from damage.
English (US) 4.3 Identification 4.3.1 Type key Example CMBE 1 44 I U C I D E Type range CMBE: CME booster with integrated frequency converter Rated flow rate At 50 Hz [m3/h] Max. head [m] Materials in contact with the pumped liquid I: Sleeve EN 1.4301/AISI 304 x Pump shaft EN 1.4301/AISI 304 x Impellers/chambers EN 1.4301/AISI 304 x Pressure manager PP 30GF x Pressure tank EPDM/steel/PP/Butyl x 5-way valve EN 1.
5.4 Outdoor installation Warning Installation and operation must comply with local regulations and accepted codes of good practice. When installed outdoors, the motor must be provided with a suitable cover to avoid condensation on the electronic components. See fig. 2. Note Warning All electrical work should be performed by a qualified electrician in accordance with the latest edition of the National Electrical Code, local codes and regulations.
English (US) 6. Electrical installation Carry out the electrical connection according to local regulations. Check that the supply voltage and frequency correspond to the values stated on the nameplate. Warning Do not make any connections in the terminal box unless the power supply has been switched off for at least 5 minutes. Make sure that the power supply cannot be accidentally switched on.
7.4 Air humidity Maximum air humidity: 95 %. 7.1 Maximum number of starts and stops The number of starts and stops via the power supply must not exceed four times per hour. If the air humidity is constantly high and above 85 %, the drain holes in the drive-end flange should be open. See section 5.5 Drain holes. When switched on via the power supply, the pump will start after approx. 5 seconds. 7.
.1.1 Setpoint setting Set the desired setpoint of the pump by pressing or . The light fields on the control panel will indicate the setpoint set. Warning The product may be so hot that only the buttons should be touched to avoid burns. Pump settings can be made by means of the following user interfaces: Control panel • Pump in constant-pressure control mode The following example applies to a pump in an application where a pressure sensor gives a feedback to the pump.
The operating condition of the motor is indicated by the Grundfos Eye on the motor control panel. See fig. 13, pos. A. A TM05 5993 4312 English (US) 10. Grundfos Eye Fig. 13 Grundfos Eye Grundfos Eye Indication Description No lights on. Power off. Motor not running. Two opposite green indicator lights rotating in the direction of rotation of the motor when seen from the non-drive end. Power on. Motor running. Two opposite green indicator lights permanently on. Power on. Motor not running.
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