Related Manuals for Cetetherm Midi Compact SR144
Summary of Contents for Cetetherm Midi Compact SR144
- Page 1 Installation, service and operating instruction Cetetherm Midi Compact SR144 DHWC Heating and domestic hot water substation for apartment houses (10-50 apts.) DOC1312 Rev:2020-06-01...
- 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
Operating instructions ......................5 Operation ..............................5 Safety equipment/inspection ........................5 Product overview ........................6 Midi Compact SR144 ..........................6 Midi Compact SR144 with vertical metering .....................7 Midi Compact SR144 with horizontal metering ..................8 Installation ..........................9 Unpacking ..............................9 Preparation ..............................9 Mounting ..............................9 Adjustments and settings for start up ..................... - Page 4 Cetetherm Midi Compact RVD144 Installation, service and operating instruction Troubleshooting ........................23 Standard values and fault indication for RVD144 .................. 23 Fault codes on the RVD144 ........................23 7.2.1 Fault in heating control system ......................23 Electrical installation ......................24 General ..............................
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Page 5: General
Cetetherm Midi Compact 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 Compact with well-planned pipe work and with all components easily accessible for inspection and possible future servicing. -
Page 6: General Warnings
Cetetherm Midi Compact RVD144 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 Compact RVD144 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
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 3 Product overview Midi Compact SR144 Heat exchanger heat Topping up X2 Heat exchanger DHW Hose Control center Draining valve, heat supply Control valve, heating Shut off valve, heat supply Actuator, heating... -
Page 9: Midi Compact Sr144 With Vertical Metering
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Midi Compact SR144 with vertical metering Heat exchanger heat Draining valve, heat supply Heat exchanger DHW Shut off valve, heat supply Control center Pump, heating Control valve, heating Safety valve, heating... -
Page 10: Midi Compact Sr144 With Horizontal Metering
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Midi Compact SR144 with horizontal metering Heat exchanger heat Shut off valve, heat supply Heat exchanger DHW Pump, heating Control center Safety valve, heating Control valve, heating Shut off valve, heat return... -
Page 11: Installation
Cetetherm Midi Compact RVD144 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: Adjustments And Settings For Start Up
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Adjustments and settings for start up Open up incoming cold water supply and fill the service water and heating circuits, bleeding off any • trapped air. Check the operation and opening pressures of the safety valves. -
Page 13: Measure Sketch Midi Compact
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Measure sketch Midi Compact Picture 1... -
Page 14: Measure Sketch Midi Compact With Vertical Metering
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Measure sketch Midi Compact with vertical metering Picture 2... -
Page 15: Measure Sketch Midi Compact With Horizontal Metering
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Measure sketch Midi Compact with horizontal metering Picture 3... -
Page 16: User Instruction Operator Control Panel Rvd144
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 5 User instruction operator control panel RVD144 Picture 4 1. Operating mode buttons 2. Display (LCD) 3. Buttons for selecting operating lines 4. Button for manual operation ON / OFF 5. Button for DHW heating ON / OFF 6. -
Page 17: Manual Operation
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Manual operation Manual operation is activated by pressing a button. It is indicated by an LED. At the same time, the LEDs in the operating mode buttons extinguish. Manual operation is quit by pressing the same button again or by pressing any of the operating mode buttons. -
Page 18: Buttons For Settings And Adjustment
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Buttons for settings and adjustment The entry or readjustment of all setting parameters, activation of optional functions and reading of actual values and states is made according to the operating line principle. An operating line with its number is assigned to each parameter, actual value and function that can be selected. -
Page 19: Heating Curve
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Heating curve Picture 5 Slope Composite outside temperature Flow temperature Set the correct heating curve based on the supply temperature and Composite Outside Temperature (COT). Picture 11 shows examples of different heating curves that can be set and adjusted according to COT and the supply temperature. -
Page 20: Adjusting Heating Curve/Room Temperature
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Adjusting heating curve/room temperature Mainly in mild weather: Use the adjusting knob to adjust the room temperature Mainly in cold weather: Adjust the slope of the heating curve on the program line –... -
Page 21: Settings On The Heating Engineer's Level
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 6 Settings on the heating engineer’s level Level settings and access rights The operating lines are assigned to different levels. Assignment and access are as follows: Level Operating line Access End-user 1 …... -
Page 22: Spaceheating
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Spaceheating Line Function, parameter Unit Factory setting Range Heating limit (ECO) ------ ECO- inactive Building structure Quick setback with room sensor 0..15 Heat gains -2..+4 Room temperature influence (gain factor 0...20 Parallel displacement of heating curve -4,5...+4,5... -
Page 23: Sensor Test
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 6.6.1 Sensor test All acquired temperature values can be displayed on operating line 141. Check that the values are realistic. Code Sensor or unit Outside sensor (B9) Flow sensor (B1) D.h.w. sensor (B3) -
Page 24: Reset End-User Level
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Reset end-user level If operating line 49 is set to 1, all the current settings on the end-user level operating lines 2…23 are cleared. In that case, the factory settings will be used again. -
Page 25: Troubleshooting
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 7 Troubleshooting Standard values and fault indication for RVD144 Line Function, parameter Factory setting (range) Reset of operating lines on the end-user level Display of faults Display function Fault codes on the RVD144... -
Page 26: Electrical Installation
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 8 Electrical installation General The electrical wirings in Midi Compact conform to the applicable rules for CE marking and have undergone electrical safety testing and function testing. For permanent installation the substation must be connected to an all-pole isolator switch. -
Page 27: Electrical Circuit Diagram Eu
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Electrical circuit diagram EU Picture 7... -
Page 28: Schematic Diagram, Main Components
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 9 Schematic diagram, main components Midi Compact Picture 8... -
Page 29: Midi Compact With Vertical Metering
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Midi Compact with vertical metering Picture 9... -
Page 30: Midi Compact With Horizontal Metering
Cetetherm Midi Compact RVD144 Installation, service and operating instruction Midi Compact with horizontal metering Picture 10... -
Page 31: Pump Settings And Pump Capacity
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 10 Pump settings and pump capacity 10.1 General Mini Compact is equipped with two circulation pumps, one for the hot water circulation, DHWC-pump, and one for the heating circuit. The DHWC pump is a traditional three speed circulation pump. The DHWC pump has a switch where the speed/capacity can be set. -
Page 32: Heating Circuit Pump Grundfos Magna3 25-100, Settings And Capacity
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 10.3 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 33: Service Instructions
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 11 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 34: Noise In The Dhwc System
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 11.1.4 Noise in the DHWC system Reason Action The pump capacity is set too high Reduce the pump capacity Reduce the level by choosing a lower output setting on the pump. -
Page 35: Noise In The Radiator System
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 11.2.3 Noise in the radiator system Reason Action Reduce the pump capacity The pump capacity set too high Reduce the level by choosing a lower output setting on the pump. Air in the DHWC pump Vent the pump The pump is self-venting. -
Page 36: Service Actions For The Installer
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 12 Service actions for the installer 12.1 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 37: Check The Function Of The Heating Actuator And Valve
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 12.2 Check the function of the heating actuator and valve Service actions must be carried out by an authorized service technician. Disconnect the electrical power supply to the controller, before manoeuvring the actuator by hand. -
Page 38: Run The Pump Manually
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 12.4 Run the pump manually Service actions must be carried out by an authorized service technician. Disconnect the electrical power supply to the controller, before manoeuvring the actuator by hand. If necessary, the pump and actuator can be run manually. -
Page 39: Maintenance And Repairs
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 13 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 40: Clean The Heating Circuit Strainer
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 13.2 Clean the heating circuit strainer Service actions must be carried out by an authorized service technician. Before starting out repairs, close the shutoff valves DH supply, DH return, heating supply and heating return. -
Page 41: Change The Complete Heating Pump Or Pump Components
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 6. Vent the circuit by opening a hot water tap. 7. Connect the power supply to the substation. 8. Open the shutoff valves DH Supply and then DH return. 13.4 Change the complete heating pump or pump components Maintenance and repairs must be carried out by an authorized service technician. -
Page 42: Change The Hot Water Actuator
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 1. Turn the actuator handle to position 0. This will make it easier to dismount and mount the actuator. 2. Detach the actuator power supply. 3. Unscrew the actuator from the valve. -
Page 43: Change The Temperature Sensor Heating Supply And Return
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 1. Turn the actuator handle to position 0. This will make it easier to mount the actuator. 2. Unscrew the actuator from the control valve. 3. Use a wrench to remove the control valve. -
Page 44: Options
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 14 Options 14.1 4-point HB metering together with Measure before and after filter, before and after pump. Picture 27... -
Page 45: Operation Data And Capacity
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 15 Operation data and capacity 15.1 Operation data Midi Compact 80 Primary side Heating Design pressure PS 16 Bar 6 bar 10 Bar Design temperature TS 120°C 100°C 100°C Relief pressure safety-valve... -
Page 46: Operation Data Midi Compact 100
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 15.2 Operation data Midi Compact 100 Primary side Heating Design pressure PS 16 Bar 6 bar 10 Bar Design temperature TS 120°C 100°C 100°C Relief pressure safety-valve 3 Bar 9 Bar... -
Page 47: Operation Data Midi Compact 160
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 15.3 Operation data Midi Compact 160 Primary side Heating Design pressure PS 16 Bar 16 bar 10 Bar Design temperature TS 120°C 100°C 100°C Relief pressure safety-valve 3 Bar 9 Bar... -
Page 48: Operation Data Midi Compact 200
Cetetherm Midi Compact RVD144 Installation, service and operating instruction 15.4 Operation data Midi Compact 200 Primary side Heating Design pressure PS 16 Bar 6 bar 10 Bar Design temperature TS 120°C 100°C 100°C Relief pressure safety-valve 3 Bar 9 Bar... - Page 50 Cetetherm AB Fridhemsvägen 15 372 38 Ronneby – Sweden www.cetetherm.com...