Alfa Laval Mini ECO Installation, Service And Operating Instruction
Heating & domestic hot water substation for apartments and single family houses
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Summary of Contents for Alfa Laval Mini ECO
- Page 1 Installation, service and operating instruction Alfa Laval Mini ECO Heating & domestic hot water substation for apartments and single family houses DOC-1392, 2018-02-01...
- Page 2 This manual is published by Alfa Laval. Alfa Laval 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.
- Page 3 4.13 Installing the outdoor temperature sensor ....................20 4.14 Starting up sequence for Mini ECO with component check ..............20 CM737- settings to be done after start-up ................. 21 Configure the control panel after installation ..................21 Setting the day............................21 Setting the time............................
- Page 4 Pump curve proportional pressure mode 2, PP2 ................... 39 10.6 Fault finding pump ..........................40 Electrical connections ......................41 Schematic diagram, main components ................42 12.1 Mini ECO F1 ............................42 12.2 Mini ECO F2 ............................42 12.3 Mini ECO F3 ............................43 12.4 Mini ECO F4 ............................
- Page 5 Alfa Laval Mini ECO Installation, service and operating instruction 15.9 Change the outdoor temperature sensor ....................57 15.10 Change the DHWC check valve ......................58 15.11 Change the expansion vessel ........................ 58 15.12 Change the differential pressure control valve ..................59 Operating data and performance ..................
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Page 6: General Information
A pre-programmed control unit and a power cable already fitted with a plug make things even simpler to allow immediate start-up. Mini ECO is designed for hanging on wall and is mounted on an insulated frame and includes an insulated cover. Better insulation means less energy usage and better energy efficiency. -
Page 7: General Warnings
Alfa Laval Mini ECO 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 8: Operating Instructions
Mini ECO has automatic temperature control for hot water. This measures the temperature of the hot water in the heat exchanger and automatically controls the primary flow. -
Page 9: Product Overview
Alfa Laval Mini ECO Installation, service and operating instruction 3 Product overview Product overview Mini ECO F1 Picture 1 Heat exchanger for heating Connection box for electric power and sensors, heating circuit Control valve, heating circuit Room thermostat/control panel Actuator, heating circuit... -
Page 10: Product Overview Mini Eco F2
Alfa Laval Mini ECO Installation, service and operating instruction Product overview Mini ECO F2 Picture 2 Heat exchanger and temperature controller Cold water outlet (cw) for hot water Control valve for hot water Hot water (hw) Heat exchanger for heating... -
Page 11: Product Overview Mini Eco F3
Alfa Laval Mini ECO Installation, service and operating instruction Product overview Mini ECO F3 Picture 3 Heat exchanger and temperature controller Cold water outlet (cw) for hot water Control valve for hot water Hot water (hw) Heat exchanger for heating... -
Page 12: Product Overview Mini Eco F4
Alfa Laval Mini ECO Installation, service and operating instruction Product overview Mini ECO F4 Picture 4 Heat exchanger and temperature controller Heating circuit, supply for hot water Control valve for hot water Air vent valve Heat exchanger for heating Connection box for electric power and... -
Page 13: Product Overview Mini Eco F5
Alfa Laval Mini ECO Installation, service and operating instruction Product overview Mini ECO F5 Picture 5 Heat exchanger and temperature controller Hot water (hw) for hot water Control valve for hot water Differential pressure controller Heat exchanger for heating Heating circuit, return... -
Page 14: Installation
Note: Risk of injury lifting heavy objects. Preparation • Mini ECO must be placed on a wall, in upright position. Mount the unit using screws or bolts suitable for the material of the wall and for the weight of the unit. •... -
Page 15: Filling Up The Tap Water Circuit
Alfa Laval Mini ECO Installation, service and operating instruction 4.4.1 Filling up the tap water circuit • Open the valves Cold water, Cold water outlet and Hot water. • Open all water taps in the building to get rid of trapped air. Let them be open until all air is gone. -
Page 16: Mounting Options
The temperature should be minimum 50°C. Alfa Laval recommends that the primary inlet temperature is at least 10º higher than the tap water temperature. NOTE: Make sure that no cold water is mixed with the hot water while making this adjustment. -
Page 17: Installing The Room Thermostat Round
Alfa Laval Mini ECO Installation, service and operating instruction 4.11 Installing the room thermostat Round 1 Removing power supply 2 Placement 3 Removing the dial 4 Removing the thermostat 5a Mounting direct on the wall 5b Mounting in wall socket... -
Page 18: Installing The Control Panel Cm737
Alfa Laval Mini ECO Installation, service and operating instruction 4.12 Installing the control panel CM737 The control panel CM737 can be used as a room thermostat. Before installation make sure that the electrical power supply is disconnected. Install the room thermostat at an appropriate location that is representative to the indoor temperature. - Page 19 Alfa Laval Mini ECO Installation, service and operating instruction Picture 9...
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Page 20: Installing The Outdoor Temperature Sensor
5.1 Configure the control panel after installation. 4.14 Starting up sequence for Mini ECO with component check The substation must be filled with water before starting the room thermostat, if not the pump can be damage. • Put the electrical cable from the control panel into a wall outlet. -
Page 21: Cm737- Settings To Be Done After Start-Up
Alfa Laval Mini ECO Installation, service and operating instruction 5 CM737- settings to be done after start-up 1. Press the MAN (8) button for a fixed set point (no reduction) of the room temperature. 2. Adjust the room temperature with the increase/decrease buttons on the right (6). -
Page 22: Room Thermostat Round
Alfa Laval Mini ECO Installation, service and operating instruction 6 Room thermostat Round General The room thermostat Round controls the supply temperature to the heating system. First time the room thermostat is started is use default control mode Outside Temperature Control (OTC control). -
Page 23: Control Modes
Alfa Laval Mini ECO Installation, service and operating instruction Control modes The room thermostat has five different control modes to select between; the default mode is Outside Temperature Control (OTC control). 1. Room temperature control RTC Supply setpoint is calculated based on the room temperature setpoint and the actual room temperature. -
Page 24: Otc Control Mode, Default Setting
Alfa Laval Mini ECO Installation, service and operating instruction OTC control mode, default setting Heat curve 10 has been set at the factory. The room thermostat controls the indoor temperature as a function of the measured outside air temperature. The heat curve is the ratio between the measured outside air temperature and the calculated supply water temperature. -
Page 25: Display Symbols
Alfa Laval Mini ECO Installation, service and operating instruction 6.10 Display symbols Control Display will show mode Shows the actual room temperature with one decimal and in 0.5 steps when the room temperature is used. Shows the room temperature setpoint with one decimal and in 0.5 steps when temperature control mode is OTC. -
Page 26: Fault Codes On Room Thermostat Round
Alfa Laval Mini ECO Installation, service and operating instruction 6.12 Fault codes on room thermostat Round Fault code 0 No fault, power up Fault code 1 Supply sensor or cable Cause Measured supply water temperature is below 0°C or above 100°C. -
Page 27: Control Panel With Room Thermostat Cm737
Alfa Laval Mini ECO Installation, service and operating instruction 7 Control panel with room thermostat CM737 General The rom thermostat CM737 controls the supply temperature to the heating system. When connecting unit to the power supply, the room thermostat verifies the connected sensors and then automatically chooses to control by room or outdoor temperature sensor or both. -
Page 28: Choosing The Operating Mode
To set the operating mode press either of the AUTO, MAN or OFF buttons. The screen indicates which mode is currently active. NOTE: Alfa Laval recommends the mode MAN. • MAN (fixed) the room thermostat acts with a fixed set point throughout the day. -
Page 29: Holiday Function
Alfa Laval Mini ECO Installation, service and operating instruction Holiday function The holiday function allows you to set a constant temperature (default = 10°C) for a specified number of days (from 1 - 99 days). This saves energy and related costs when the house is empty, but resumes normal operation on the day of return. -
Page 30: Operating Mode Auto
Alfa Laval Mini ECO Installation, service and operating instruction Operating mode Auto 7.7.1 The Built-in Heating Program The built-in heating program has four temperature level changes per day that can be set between 3.00am and 2.50am the following day - allowing the evening temperature to maintain after midnight. Each temperature level can be set between 5°C and 35°C, and adjusted in 0.5°C increments. -
Page 31: Modifying The Heating Program
Alfa Laval Mini ECO Installation, service and operating instruction 7.7.5 Modifying the heating program To change the heating program: a) Press either of the PROGRAM buttons to enter the programming mode. The time /temperature settings for period on Monday day 1 will be flashing. -
Page 32: Activation Of Installer Parameters Cm737
Alfa Laval Mini ECO Installation, service and operating instruction 8 Activation of installer parameters CM737 Installer Mode is used to alter the system settings for specific applications, to use the special features of the room thermostat in a different way or to alter the factory present parameters. Parameters are divided into groups: •... -
Page 33: Category 1 Parameters: Control Panel Settings
Alfa Laval Mini ECO Installation, service and operating instruction Category 1 parameters: Control panel settings Parameter Para- Factory Optional Setting meter Default Display Description Setting AM-PM / 24hr Display 1:CL 24/12 24hr. or AM/PM clock display format Reset Time/ Temp... -
Page 34: Category 3 Parameters: Setting And Displaying Sensor Values
Alfa Laval Mini ECO Installation, service and operating instruction Category 3 parameters: Setting and displaying sensor values Parameter Para- Factory Optional Setting meter Default Display Description Setting Maximum supply 1:CH 30 to 80 Maximum supply temp set point for heating. -
Page 35: Troubleshooting The Control Panel Cm737
Alfa Laval Mini ECO Installation, service and operating instruction 9 Troubleshooting the control panel CM737 Symptom Possible Cause Remedy The control panel receives The control panel is not A flashing symbol power supply from the connected to the correct appears on the display within connection box, but no terminals of the connection box. -
Page 36: Fault Codes On The Control Panel Cm737
Alfa Laval Mini ECO Installation, service and operating instruction Fault codes on the control panel CM737 If a spanner is visible on the display, there is an on ongoing alarm. Press the Info-button to view the fault code. Error source... -
Page 37: Pump Settings And Pump Performance
When the pump is switched on it runs with the factory pre-setting or the last setting. The Mini ECO pump is pre-set to run with operation mode, proportional pressure mode 2, PP2. Operation mode indicates with LEDs on the pump front. -
Page 38: Setting View
Alfa Laval Mini ECO Installation, service and operating instruction 10.2 Setting view To see used pump curve, press ones on the push button. After a few seconds, the pump return to show performance view. Pump curve Function Settings Proportional-pressure curve The head (pressure) is reduced at falling heat demand and increased at rising heat demand. -
Page 39: Pump Curve Proportional Pressure Mode 2, Pp2
Alfa Laval Mini ECO Installation, service and operating instruction 10.5 Pump curve proportional pressure mode 2, PP2 Picture 19 Line type Description Constant Curve Proportional Pressure Constant Pressure... -
Page 40: Fault Finding Pump
Alfa Laval Mini ECO Installation, service and operating instruction 10.6 Fault finding pump Before starting any work at the pump, switch off the power supply. Make sure that the power supply cannot be switched on accidentally. Be aware that capacitors will be live up to 30 seconds after the power supply has been switched off. -
Page 41: Electrical Connections
Alfa Laval Mini ECO Installation, service and operating instruction 11 Electrical connections Picture 20... -
Page 42: Schematic Diagram, Main Components
Alfa Laval Mini ECO Installation, service and operating instruction 12 Schematic diagram, main components 12.1 Mini ECO F1 Picture 21 12.2 Mini ECO F2 Picture 22... -
Page 43: Mini Eco F3
Alfa Laval Mini ECO Installation, service and operating instruction 12.3 Mini ECO F3 Picture 23 12.4 Mini ECO F4 Picture 24... -
Page 44: Mini Eco F5
Alfa Laval Mini ECO Installation, service and operating instruction 12.5 Mini ECO F5 Picture 25... -
Page 45: Service Instructions
The temperature should be minimum 50°C. Alfa Laval recommends that the primary inlet temperature is at least 10º higher than the tap water temperature. NOTE: Make sure that no cold water is mixed with the hot water while making this adjustment. -
Page 46: Tap Water Temperature Too High
The temperature should be minimum 50°C. Alfa Laval recommends that the primary inlet temperature is at least 10º higher than the tap water temperature. NOTE: Make sure that no cold water is mixed with the hot water while making this adjustment. - Page 47 Alfa Laval Mini ECO Installation, service and operating instruction Heating supply Check that the heating supply temperature sensor and outdoor temperature sensor are correctly sited and working. temperature sensor and outdoor temperature sensor Control panel Round: does not work Supply temperature can only be viewed in control mode 4 and 5.
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Page 48: No Heating
Alfa Laval Mini ECO Installation, service and operating instruction 13.2.2 No heating Reason Action Closed radiator or floor Check that all radiator valves and floor heating valves are fully open heating valves Check that the electrical power is on Circulation pump not... -
Page 49: Heating Temperature Unstable
Alfa Laval Mini ECO Installation, service and operating instruction Filter for heating media 15.2 Cleaning the heating circuit filter. clogged 17.1 Differential pressure control valve, DPC Differential pressure control valve incorrectly adjusted(option) 13.2.3 Heating temperature unstable Reason Action Alternating pressure... -
Page 50: Disturbing Noise From The Circulation Pump Or The Radiator System
Alfa Laval Mini ECO Installation, service and operating instruction 13.2.4 Disturbing noise from the circulation pump or the radiator system Reason Action Air in the system Bleed the system Disconnect the substation power supply cable. Bleed the heating system via the air vent valve. -
Page 51: Service Actions For The Installer
Alfa Laval Mini ECO Installation, service and operating instruction 14 Service actions for the installer 14.1 Check the function of the valve for hot water Service actions must be carried out by an authorized service technician. Close the shutoff valves for the Heating network supply and Heating network return together with the cold and hot water. -
Page 52: Check The Function Of The Heating Actuator And Valve
Check the actuator by pulling out the electrical cable and refit it again; this will start an automatic self-test off the actuator. 4.14 Starting up sequence for Mini ECO with component check. Check the flow using the energy meter while test-running the valve. -
Page 53: Maintenance And Repairs
Alfa Laval Mini ECO Installation, service and operating instruction 15 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 54: Change Pump Components Or The Complete Pump
Alfa Laval Mini ECO Installation, service and operating instruction 1. Disconnect the power feed to the substation. 2. Close the shut-off valves. 3. Use a wrench and release the filter cover and remove the cartridge. 4. Clean the filter with water and refit the cartridge. Screw the filter cover with a momentum of 10-20 Nm. -
Page 55: Change The Hot Water Actuator And Heat Exchanger
Alfa Laval Mini ECO Installation, service and operating instruction 15.4 Change the hot water actuator and heat exchanger The temperature and the pressure of the district heating water are very high. Only qualified technicians can work with the district heating substation. Incorrect operation may cause serious personal injury and result in damage to the building. -
Page 56: Change The Heating Actuator
Alfa Laval Mini ECO Installation, service and operating instruction 15.6 Change the heating actuator Maintenance and repairs must be carried out by an authorized service technician. 1. Disconnect the electrical power supply. 2. Disconnect the cable from heating actuator in the connection box. -
Page 57: Change The Heating Circuit Supply Temperature Sensor
Alfa Laval Mini ECO Installation, service and operating instruction 15.8 Change the heating circuit supply temperature sensor 1. Disconnect the power feed to the substation. 2. Close the heating actuator by turning the knob clockwise to its closing position. 3. Disconnect the quick-connect terminals and replace the sensor with a new one. -
Page 58: Change The Dhwc Check Valve
Alfa Laval Mini ECO Installation, service and operating instruction 15.10 Change the DHWC check valve Maintenance and repairs must be carried out by an authorized service technician. Before starting out repairs, close the shutoff valves heating network supply, heating network return, cold-water and hot water. -
Page 59: Change The Differential Pressure Control Valve
Alfa Laval Mini ECO Installation, service and operating instruction 15.12 Change the differential pressure control valve Maintenance and repairs must be carried out by an authorized service technician. The temperature and the pressure of the district heating water are very high. Only qualified technicians can work with the district heating substation. -
Page 60: Operating Data And Performance
Alfa Laval Mini ECO Installation, service and operating instruction 16 Operating data and performance... -
Page 61: Technical Data
Alfa Laval Mini ECO Installation, service and operating instruction 16.1 Technical Data Main measures See Measure sketch • 560x240x850 (mm, WxDxH) With cover • 560x220x850 (mm, WxDxH) Without cover Weight 26kg, cover 2kg Electrical data 230 V, 1-phase, 50 W Transportation Total weight 32 kg, 0.2 m³... -
Page 62: Options
Alfa Laval Mini ECO Installation, service and operating instruction 17 Options The mounting instructions are described for a new installation. If the kits are to be installed on an already installed subsystem, release the water pressure and disconnect the electrical power supply before starting. The options must be installed by an authorized installation contractor. -
Page 63: Safety Thermostat
17.2.1 Parameters and recommended settings for under floor heating The following changes must be done before starting up Mini ECO with a safety thermostat. 1. Change the pump operating mode to constant pressure. 10.3 Toggling the settings of UPM3. -
Page 64: Service Bypass
Alfa Laval Mini ECO Installation, service and operating instruction 17.3 Service bypass The Service bypass makes it possible to flush the pipes Heating Network media, supply and return, when the substation is mounted. 1. Connect the service bypass between connection Heating Network media, supply and return.
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