Related Manuals for Cetetherm Midi Wall TA
Summary of Contents for Cetetherm Midi Wall TA
- Page 1 Installation, service and operating instruction Cetetherm Midi Wall TA Heating and domestic hot water substation for apartment houses (10-30 apts.) DOC1364 Rev 11-03-2021...
- Page 2 QR-code: This manual is published by Cetetherm. Cetetherm can without further notice make changes and improvements to the content in this manual if it is necessary due to printing mistakes, wrong information or changes in the hardware or software. All these types of changes will be included in future release of the manual.
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Page 3: Table Of Contents
Safety equipment/inspection ........................5 Product overview, flowchart and measure sketch .............. 6 Schematic diagram, main components ..................... 7 Option 3-point HB metering ........................7 Measure sketch Midi Wall TA ........................8 Installation ..........................9 Unpacking ..............................9 Preparation ..............................9 Mounting .............................. - Page 4 Cetetherm Midi Wall TA Installation, service and operating instruction Change the expansion vessel ......................... 25 Options ..........................26 10.1 Safety thermostat ............................ 26 10.1.1 Installing the safety thermostat ......................26 10.2 3-point or 2+1-point HB metering ......................26 10.3 Mounting floor stand ..........................27 10.4...
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Page 5: General
Installation, service and operating instruction 1 General Cetetherm Midi Wall is a complete, ready-to-install heating network substation for heating and hot water. It is designed for buildings with a primary connection to a heating network. Cetetherm has years of experience in heating network technology and has developed Midi Wall with well-planned pipe work and with all components easily accessible for inspection and possible future servicing. -
Page 6: General Warnings
Cetetherm Midi Wall TA Installation, service and operating instruction General warnings The installation work must be carried out by an authorized installation contractor. Before the system is taken into operation, it must be pressure tested in accordance with relevant regulations. -
Page 7: Operating Instructions
Cetetherm Midi Wall TA Installation, service and operating instruction 2 Operating instructions Operation The temperature and pressure of the incoming heating network water from the culvert network are very high. For this reason, only the heat from this water is used. The heating network water does not enter the heating and hot water systems of the building. -
Page 8: Product Overview, Flowchart And Measure Sketch
Cetetherm Midi Wall TA Installation, service and operating instruction 3 Product overview, flowchart and measure sketch Picture 1 Heat exchanger, heating 16. Shutoff valve, heating return Heat exchanger, DHW 17. Strainer, heating return Control valve, heating 18. Safety valve, heating Control valve, DHW 19. -
Page 9: Schematic Diagram, Main Components
Cetetherm Midi Wall TA Installation, service and operating instruction Schematic diagram, main components Picture 2 Option 3-point HB metering Picture 3 Welded filter Shut off valves Manometer clock Sensor pocket energy meter primary in Sensor pocket energy meter primary out... -
Page 10: Measure Sketch Midi Wall Ta
Cetetherm Midi Wall TA Installation, service and operating instruction Measure sketch Midi Wall TA Picture 4... -
Page 11: Installation
Cetetherm Midi Wall TA Installation, service and operating instruction 4 Installation Unpacking Remove the transport packaging and check that the product has not been damaged in transit and that • the consignment agrees with the specifications. When lifting the unit, take care not to apply stress to pipes and heat exchangers as this may weaken •... -
Page 12: Mounting The Options
Cetetherm Midi Wall TA Installation, service and operating instruction • Energy meters must be installed at a prepared location, replacing a gauge block, or following the instructions of the energy supplier. NOTE: the connection pipe between the valves is just for draining. -
Page 13: Connection Overview
Cetetherm Midi Wall TA Installation, service and operating instruction Connection overview Picture 6 Heat Supply G1 1/4" DHW G1” Heat Return G1 1/4” DH Supply DN25, weld CW G1” DH Return DN255, weld VVC G1”... -
Page 14: Electrical Installation
Cetetherm Midi Wall TA Installation, service and operating instruction 5 Electrical installation General The wiring in Midi Wall conforms to the applicable rules for CE marking and has undergone electrical safety testing and function testing. For permanent installation must the substation be connected to an all-pole isolated switch. -
Page 15: Heating Circuit Pump Grundfos Upmxl25-125 180 Auto, Settings And Capacity
Cetetherm Midi Wall TA Installation, service and operating instruction Heating circuit pump Grundfos UPMXL25-125 180 Auto, settings and capacity Picture 9 Pumpkurva MAX.H 7,5 m 10 m 12,5 m 9,5 m 11 m... -
Page 16: Changing Pump Curve Setting
Cetetherm Midi Wall TA Installation, service and operating instruction The heating pump is internally controlled via digital pulse-width modulation. The user interface allows to select between six control curves in two control modes: three proportional pressure curves (PP) • •... -
Page 17: Heating Circuit Pump Grundfos Magna3 25-100, Settings And Capacity
Cetetherm Midi Wall TA Installation, service and operating instruction Heating circuit pump Grundfos Magna3 25–100, settings and capacity The pumps have been factory-set to AUTOADAPT without automatic night setback. AUTO (factory set) ADAPT Recommend control mode for most heating systems. -
Page 18: Service Instructions
Cetetherm Midi Wall TA Installation, service and operating instruction 7 Service instructions To avoid the risk of scalding, make sure that no-one draws any water while servicing the substation. Grey marked service actions must be carried out by an authorized service technician. -
Page 19: Nosie In The Dhwc System
Cetetherm Midi Wall TA Installation, service and operating instruction 7.1.4 Nosie in the DHWC system Reason Action The DHWC pump capacity set too high Reduce the pump capacity Reduce the pump capacity by selecting a lower setting on the pump when needed. -
Page 20: Noise In The Radiator System
Cetetherm Midi Wall TA Installation, service and operating instruction 7.2.3 Noise in the radiator system Reason Action The heating pump capacity set too Reduce the pump capacity high Reduce the pump capacity by selecting a lower setting on the pump when needed. -
Page 21: Service Actions For The Installer
Cetetherm Midi Wall TA Installation, service and operating instruction 8 Service actions for the installer Check the function of the hot water valve and actuator Service actions must be carried out by an authorized service technician. Close the shutoff valves for the DH supply and DH return together with the cold and hot water. -
Page 22: Check The Function Of The Heating Actuator And Valve
Cetetherm Midi Wall TA Installation, service and operating instruction Check the function of the heating actuator and valve Service actions must be carried out by an authorized service technician. 1. Disconnect the power supply to the substation. 2. Lower the manual operation handle to stop the motor. It is easier to lower the manual operation handle if you twist it a little forward and backwards when it is lowered a little. -
Page 23: Check Dhwc Pump
Cetetherm Midi Wall TA Installation, service and operating instruction Check DHWC pump If the pump fails to start after stopping, try to start it at the highest setting. Service actions must be carried out by an authorized service technician. Disconnect the power supply to the pump by pulling off the connecter before carrying out this service. -
Page 24: Maintenance And Repairs
Cetetherm Midi Wall TA Installation, service and operating instruction 9 Maintenance and repairs When carrying out repairs, please contact your local service partner. Before starting out repairs always close the correct shutoff valves. When dismounting a component there will be water coming out, hot and under pressure. -
Page 25: Change The Complete Dhwc Pump Or Pump Components
Cetetherm Midi Wall TA Installation, service and operating instruction 1. Disconnect the power supply to the substation. 2. Close the shut-off valves. 3. Use a wrench and release the strainer holder and remove the cartridge. 4. Clean the strainer in water and refit the cartridge. Screw the strainer holder with a momentum of 10-20 Nm. -
Page 26: Change The Complete Heating Pump Or Pump Components
Cetetherm Midi Wall TA Installation, service and operating instruction Change the complete heating pump or pump components Maintenance and repairs must be carried out by an authorized service technician. Before starting out repairs, close all shutoff valves Release the pressure using the heating safety valve. -
Page 27: Change The Heating Or Hot Water Valve
Cetetherm Midi Wall TA Installation, service and operating instruction Change the heating or hot water valve Maintenance work must be carried out by an authorized service technician. Disconnecting the power feed to the pump and the substation. Before starting out repairs always close the primary supply and return shutoff valves and drain the system. -
Page 28: Options
Cetetherm Midi Wall TA Installation, service and operating instruction 10 Options The mounting instructions are described for a new installation. If the kits are supposed to be installed on an already installed subsystem, you will have to release the water pressure and disconnect the electrical power supply before starting. -
Page 29: Mounting Floor Stand
Cetetherm Midi Wall TA Installation, service and operating instruction 10.3 Mounting floor stand 1. Mount two floor supports to the central. Use the outer mounting holes. 2. Mount the floor stand feet on the floor support. 3. Raise the central against a wall. -
Page 30: Balancing Valve Dhwc
Cetetherm Midi Wall TA Installation, service and operating instruction 10.5 Balancing valve DHWC Set the valve to a specific pressure drop according to: 1. Close the valve fully (Picture 31). 2. Open the valve the correct numbers of turns (Picture 32). - Page 31 Cetetherm Midi Wall TA Installation, service and operating instruction Picture 34 *) recommended area **) 25 dB (A) ***) 35 dB (A)
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Page 32: Technical Data And Performance
Cetetherm Midi Wall TA Installation, service and operating instruction 11 Technical data and performance 11.1 Operation data Midi Wall 70 Primary side Heating Design pressure PS 16 Bar 6 bar 10 Bar Design temperature TS 120°C 90°C 90°C Relief pressure safety-valve... -
Page 33: Operation Data Midi Wall 100
Cetetherm Midi Wall TA Installation, service and operating instruction 11.2 Operation data Midi Wall 100 Primary side Heating Design pressure PS 16 Bar 6 bar 10 Bar Design temperature TS 120°C 90°C 90°C Relief pressure safety-valve 3 Bar 9 Bar... -
Page 34: Operation Data Midi Wall 130
Cetetherm Midi Wall TA Installation, service and operating instruction 11.3 Operation data Midi Wall 130 Primary side Heating Design pressure PS 16 Bar 6 bar 10 Bar Design temperature TS 120°C 90°C 90°C Relief pressure safety-valve 3 Bar 9 Bar... -
Page 35: Operation Data Midi Wall 160
Cetetherm Midi Wall TA Installation, service and operating instruction 11.4 Operation data Midi Wall 160 Primary side Heating Design pressure PS 16 Bar 6 bar 10 Bar Design temperature TS 120°C 90°C 90°C Relief pressure safety-valve 3 Bar 9 Bar... - Page 36 Cetetherm AB Fridhemsvägen 15 372 38 Ronneby – Sweden www.cetetherm.com...