GRUNDFOS INSTRUCTIONS SCALA Installation and operating instructions
English (GB) English (GB) Installation and operating instructions Original installation and operating instructions Warning These installation and operating instructions describe Grundfos SCALA domestic water supply pumps. Prior to installation, read this document and the quick guide. Installation and operation must comply with local regulations and accepted codes of good practice. Sections 1-4 give the information necessary yo be able to unpack, install and start up the product in a safe way.
.4 Foundation 2.1 Inspecting the product Fasten the pump to a solid horizontal foundation by means of screws through the holes in the base plate. See figures 2 and 1. English (GB) 2. Receiving the product Check that the product received is in accordance with the order. Check that the voltage and frequency of the product match voltage and frequency of the installation site. See section 6.4.1 Nameplate. TM06 5729 5315 2.
3.5.2 Suction from a well 3.4.2 How to reduce noise in the installation 2 Correct installation using a vibration-damping rubber pad, flexible hoses and correctly placed pipe hangers for rigid pipes can reduce the noise experienced by up to 50 %. See fig. 4. 1 Place pipe hangers for the rigid pipes close to the connection of the flexible hose. H1 Pipe hanger for rigid pipe Flexible hose 4 TM06 4321 1915 Rubber pad Fig. 4 How to reduce noise in the installation Fig.
3.6 Suction pipe length The overview below shows the different possible pipe lengths, depending on the vertical pipe length. Warning The electrical connection must be carried out by an authorised electrician in accordance with local regulations. The overview is only intended as a guide. Warning L Before making any connections in the product, make sure that the power supply has been switched off and that it cannot be accidentally switched on.
. Product introduction The shaft-seal faces are lubricated by the pumped liquid, meaning that there may be a certain amount of leakage from the shaft seal. 6.1 Product description When the pump is started up for the first time, or when the shaft seal has been replaced, a certain run-in period is required before the leakage is reduced to an acceptable level.
6.4 Identification 6.4.1 Nameplate SCALA2 3 -45 A K C H D E Type range 1 DK-8850 Bjerringbro, Denmark 15 2 SCALA2 3-45 AKCHDE Model A 200-240V 50/60Hz Made in Serbia Hmax Hmin Hnom Qnom Tamb.max 16 PCS XXXXX.XX.XX 04-6292.2.41-2003 LSPr-022-IDN NRP XXX-XXX-XXXXXX 3 4 P/N 99999999 S/N P/C 1519 45 m 16 m 27 m 3 3 m /h 55 C 10 Tliq.max/Psyst.max: 45 C/1MPa 11 12 I(A) P1(W) Min. 0.01 2 Max. 2.8 550 17 Fig.
BAR 7.1 Menu overview, SCALA2 PSI Water colum kPa MPa } } } } 5.5 80 55 550 0.55 5.0 73 50 500 0.50 4.5 65 45 450 0.45 4.0 58 40 400 0.40 3.5 51 35 350 0.35 3.0 44 30 300 0.30 2.5 36 25 250 0.25 2.0 30 20 200 0.20 1.5 22 15 150 0.15 TM06 4187 1615 [m] TM06 3301 5114 Fig. 15 Pressure indication table Note The pressure settings 4.5, 5.0 and 5.
8. Operating the controller English (GB) 8.3.2 Auto reset The factory setting for "Auto reset" is "on". 8.1 Setting the outlet pressure Adjust the outlet pressure by pressing On: . 8.2 Locking and unlocking the operating panel The operating panel can be locked, which means that the buttons do not function and no settings can be changed accidentally. This function allows the pump to automatically check if the operating conditions are back to normal.
.1.2 Inlet and outlet valves The pump is maintenance-free, but we recommend that you check and clean the inlet and outlet non-return valves once a year or as needed. 9.1 Deblocking the pump Warning 1 Before starting any work on the product, make sure that the power supply has been switched off and that it cannot be accidentally switched on. 2 The end cover incorporates a plug which can be removed by means of a suitable tool.
English (GB) 10.2 Customer service information For further information on service parts, see Grundfos Product Center on www.product-selection.grundfos.com. 10.3 Service kits For further information on service kits, see Grundfos Product Center on www.grundfos.com. 11. Taking out of operation For further information on how to take the product out of operation, see end-of-life documentation on www.grundfos.com. 12. Fault finding the product 12.
.3 Fault finding chart English (GB) Warning Before starting fault finding, switch off the power supply. Automatic reset Indicator light Fault Grundfos Eye Make sure that the power supply cannot be accidentally switched on. 1. The pump is not running. - Cause Remedy a) Power supply failure Switch on the power supply. Check the cables and cable connections for defects and loose connections and check for blown fuses in the electrical installation.
Cause Remedy Yes a) The setpoint has been set too high. The difference between the outlet pressure and the inlet pressure must not exceed 4 bar (58 psi). Example: If the required outlet pressure is 5 bar (73 psi), the minimum inlet pressure must be 1 bar (14.5 psi). Reduce the setpoint to 4 bar (58 psi) + positive inlet pressure. Yes b) The maximum pressure has been exceeded - the inlet pressure is higher than 6 bar, 0.6 MPa (87 psi) Check the inlet conditions.
. Disposal This product has been designed with focus on the disposal and recycling of materials. The following disposal values apply to all variants of Grundfos SCALA pumps: 13.1 Operating conditions Maximum ambient temperature: 1 x 208-230 V, 60 Hz: 45 °C (113 °F) 1 x 115 V, 60 Hz: 45 °C (113 °F) 1 x 200-240 V, 50/60 Hz: 55 °C (131 °F) Maximum liquid temperature: 45 °C (113 °F) 10 bar, 1 MPa (145 psi) Maximum inlet pressure: 6 bar, 0.
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