Evo Flex Owner's manual

Brand: Evo

Model: Flex

Type: Owner's manual

Evo Flex Manual

Contents

1. Introduction _____________________________________________________________________________________ 2

2. Unit Specifications ________________________________________________________________________________ 3

2.1 Unit Structure ________________________________________________________________________________ 3

2.2 Technical Data ________________________________________________________________________________ 4

2.3 Dimensions __________________________________________________________________________________ 5

3. Safety Instructions ________________________________________________________________________________ 6

4. Installation ______________________________________________________________________________________ 6

4.1 Transit ______________________________________________________________________________________ 6

4.2 Application of Heat Pump for Cooling ______________________________________________________________ 7

4.3 Location of Install & Minimum Clearances __________________________________________________________ 7

4.4 Water Loop Connection ________________________________________________________________________ 8

4.5 Electrical Connection ___________________________________________________________________________ 8

4.6 Initial Start-up of the Unit _______________________________________________________________________ 8

5. Operation_______________________________________________________________________________________ 9

5.1 Main Interface Display and Function_______________________________________________________________ 9

5.2 Functions of the Controller ______________________________________________________________________ 9

5.2.1 Turning On & Off __________________________________________________________________________ 9

5.2.2 Mode Switch ____________________________________________________________________________ 10

5.2.3 Setting Target Temperature _________________________________________________________________ 10

5.2.4 Fast Heating _____________________________________________________________________________ 10

5.2.5 Timer Setting ____________________________________________________________________________ 11

5.2.6 Setup Interface ___________________________________________________________________________ 11

5.2.7 Setting the Date & Time ____________________________________________________________________ 11

5.2.8 Fault Interface ___________________________________________________________________________ 12

5.2.9 Colour Display Calibration __________________________________________________________________ 12

6. Troubleshooting ________________________________________________________________________________ 13

6.1 Electronic Control Fault Table ___________________________________________________________________ 13

6.2 Frequency Conversion Board Fault Table __________________________________________________________ 14

3 Troubleshooting Table_________________________________________________________________________ 15

7. Appendix ______________________________________________________________________________________ 16

7.1 Parameter List _______________________________________________________________________________ 16

7.2 Install Sketch Map ____________________________________________________________________________ 16

7.3 Automatic Filled-Water ________________________________________________________________________ 17

7.4 Leakage Pressure Valve ________________________________________________________________________ 17

7.5 Assistant Heat Source Connection _______________________________________________________________ 18

7.6 Cable Specifications ___________________________________________________________________________ 18

7.3 Controller Interface Drawing ____________________________________________________________________ 19

8. Maintenance ___________________________________________________________________________________ 21

9. Warranty ______________________________________________________________________________________ 22

Evo Flex Manual

1. Introduction

This manual contains all the necessary information in regard to the installation, troubleshooting, operation and

maintenance of this unit. Ensure instructions in this manual are adhered to at all times. Failing to comply with these

recommendations will invalidate the warranty. This manual and all others are available for download on our website.

With the application of DC inverter technology, the Evo Flex Series can adjust the output capacity automatically and

control the room temperature accurately. The Evo Flex Series is ideal for domestic hot water and space heating and

cooling.

• Latest DC invert heat pump technology

• One heat pump for hot water and space heating and cooling

• Energy savings, 30% less energy consumption compared to a fixed speed heat pump

• Reduces energy use and green house gases

• Precise temperature control

• Speed up heating/cooling time

• Wired controller, easy to operate, intelligent colour touch screen controller

• Intelligent defrosting

• Monobloc design

• Works efficiently with floor heating, water fan coils or radiators

Evo Flex Manual

2. Unit Specifications

2.1 Unit Structure

Evo Flex 10

Evo Flex 17 & 25

Evo Flex Manual

2.2 Technical Data

Evo Flex

Cooling Capacity

14.5

BTU/h

34121

49489

68260

Heating Capacity

11.5

16.5

BTU/h

39240

56315

85325

Hot Water Capacity

13.2

21.6

BTU/h

45040

73702

102364

Cooling Power Input

BTU/h

3.4

5.6

9.0

Heating Power Input

3.4

5.1

9.0

Hot Water Power Input

BTU/h

3.6

6.2

8.2

Operation Electric Current (max)

15.7

14.0

Cooling Capacity Range

2.0 ~ 10

5.0 ~ 14.5

7.0 ~ 20.0

Heating Capacity Range

2.5 ~ 11.5

5.0 ~ 16.5

8.0 ~ 25.0

Hot Water Capacity Range

4.2 ~ 13.2

7.4 ~ 21.6

11.0 ~ 30.0

Cooling Power Input Range

1.0 ~ 3.4

1.6 ~ 5.6

2.5 ~ 9.0

Heating Power Input Range

0.8 ~ 3.4

1.2 ~ 5.1

2.5 ~ 9.0

Hot Water Power Input Range

1.0 ~ 3.6

1.5 ~ 6.2

2.1 ~ 8.2

Power Supply

230V~/50Hz

380V/3N~/50Hz

Compressor Quantity

Compressor Model

Rotary

Fan Quantity

Fan Power Input

75 X 2

150 X 2

Fan Rotate Speed

RPM

850

900

Noise

dB(A)

Water Pump Input

0.18

0.5

0.65

Water Head

12.5

22.5

Water Connection

inch

1 1/4

Water Flow Volume

1.6

2.8

4.2

Water Pressure Drop (max)

kpa

105

Unit Net Dimensions (L/W/H)

953*445*910

996*395*1320

1175*400*1592

Unit Shipping Dimensions (L/W/H)

1040*490*920

1070*435*1340

1225*430*1600

Net Weight

See Nameplate

Shipping Weight

See Package Label

Cooling Working Condition: (DB/WB)35°C/24°C, (outlet/inlet) 7°C/12°C

Heating Working Condition: (DB/WB) 7°C/6°C, (outlet/inlet) 35°C/30°C

Hot Water Working Condition: (DB/WB) 20°C/15°C, (outlet/inlet) 40°C/45°C

BS EN 14511-1-2013 Air Conditioner, whole liquid cooling machine, electric compressor.

Part 2: Test condition Part 3: Test Method Part 4: Related requirements.

Evo Flex Manual

2.3 Dimensions

Evo Flex 10

Evo Flex 17

Evo Flex 25

Evo Flex Manual

3. Safety Instructions

• Installation, repair or relocations must be done by a fully qualified person and not by the customer. If done

incorrectly it may cause fire, electric shock, water leakage and other hazards.

• Maintenance and operation must be carried out according to the recommended time and frequencies, as

stated in this manual.

• To avoid risk of electrical shock, the unit must have a good power connection and earthing.

• If the supply cord is damaged, it must be replaced.

• Use genuine standard spare parts only.

• When an abnormality (smell of burning, etc.) occurs, stop the unit and disconnect the power or turn off the

breaker. If the unit continues to be operated in an abnormal condition, it may cause a fire or hazards.

• Do not insert fingers or objects into the fans or evaporator of the unit.

• The unit is equipped with an over-load protection system. After a previous stoppage, the unit will not start

for at least 3 minutes.

• For unit cleaning or maintenance, switch off and disconnect the power of the unit.

• Do not install the unit near flammable gas or spray flammable substances near it.

• Ensure the heat pump is installed on a strong and stable platform.

• A circuit breaker must be installed for the unit.

• Use supply wires suitable for 75°C

* Caution: Single wall heat exchanger, not suitable for potable water connection.

4. Installation

Based on the local climate conditions, construction features and insulation level, calculate the required cooling

(heating) capacity per square meter.

Conclude the total capacity which will be needed by the construction.

According to the total capacity needed, choose the right model by consulting the heat pump features as below:

Heat Pump Features

Cooling Only Unit: chilled water outlet temp. at 5-15°C, maximum ambient temp. at 43°C

Heating and Cooling Unit: for cooling chilled water outlet temp. at 5-15°C, maximum ambient temp. at 43°C.

For heating warm water inlet temp. at 40-50°C, minimum ambient temp. at -10°C.

Unit Application

The Evo Flex can be installed in houses, offices, hotels and many more locations which require heating and cooling

separating, with each area needing to be controlled independently.

4.1 Transit

If the unit needs to be hung up during installation, an 8-metre cable is required. There

must be a soft material between the cable and the unit to prevent damage to the heat

pump cabinet.

WARNING

DO NOT touch the heat exchanger of the heat pump with fingers or other objects!

Evo Flex Manual

4.2 Application of Heat Pump for Cooling

4.3 Location of Install & Minimum Clearances

The heat pump can be installed onto the concrete basement by using expansion screws, or onto a steel frame with

rubber feet which can be placed on the ground or the roof. Ensure that the unit is placed horizontally.

• The unit can be installed in any place outdoors which will be able to support the weight of a heavy unit such

as a terrace, roof, the ground and any other places deemed suitable.

• The location must have good ventilation.

• The location must be free from heat radiation and other fire hazards.

• A pall is needed in winter to protect the unit from snow.

• There must be no obstacles near the inlet and outlet of the unit.

• The installation location must be protected from strong winds or air.

• There must be a water channel around the heat pump to drain condensing water.

• Leave enough space around the unit for maintenance.

A > 500mm

B > 1500mm

C > 1000mm

D > 500mm

Evo Flex Manual

4.4 Water Loop Connection

Pay attention to the below matters when the water pipe is connected.

• Try to reduce the resistance to the water from the piping.

• The piping must be clear and free from dirt and blockage. A water leakage test must be carried out to ensure

that there is no water leaking before the installation can be made.

• The pipe must be tested by pressure separately. DO NOT test it together with the unit.

• There must be an expansion tank on the top point of the water loop, and the water level inside the tank

must be at least 0.5meters higher than the top point of the water loop.

• The flow switch is installed inside of the heat pump, check to ensure that the wiring and action of the switch

is normal and controlled by the controller.

• Try to avoid any air from being trapped inside the water pipe, there must be an air vent on the top point of

the water loop.

• There must be a thermometer and pressure meter at the water inlet and outlet for easy inspection during

running.

4.5 Electrical Connection

• Open the front panel and open the power supply access.

• The power supply must go through the wire access and be connected to the power supply terminals in the

controlling box. Then connect the 3-signal wire plugs of the wire controller and main controller.

• If an external water pump is required, please insert the power supply wire into the wire access and connect

it to the water pump terminals.

• If an additional auxiliary heater is needed to be controlled by the heat pump controller, the relay (or power)

of the aux-heater must be connected to the relevant output of the controller.

4.6 Initial Start-up of the Unit

INSPECTION BEFORE TRIAL RUNNING

• Check the indoor unit, make sure that the pipe connection is done correctly, and the relevant valves are open.

• Check the water loop to ensure that the water inside of the expansion tank is filled to an appropriate level, and

the water supply is working, and the water loop is full of water and free of trapped air. Make sure there is good

insulation for the water pipe.

• Check the electrical wiring. Make sure that the power voltage is normal, the screws are fastened, the wiring is

made in line with the diagram and that the earthing is connected.

• Check that the heat pump includes all the screws and components, and that they are in good order. When

powering the unit on, review the indicator on the controller to see if there is any indication of failure. The gas

gauge can be connected to the check valve to see the high pressure (or low pressure) of the system during trial

running.

TRIAL RUNNING

• Start the heat pump by pressing the ‘POWER’ button key on the controller. Check whether the water pump is

running, if it runs normally there will be 0.2MPa on the water pressure meter.

• When the water pump has ran for a minute, the compressor will start. Listen for any strange sounds from the

compressor, if an abnormal sound occurs please stop the unit and check the compressor. If the compressor runs

well please look for the pressure meter of the refrigerant.

• Check whether the power input and running current is in line with the manual. If not please stop and check.

• Adjust the valved on the water loop to make sure that the hot (cool) water supply to each door is good and

meets the requirements of heating (or cooling).

• Review whether the outlet water temperature is stable.

• The parameters of the controller are set by the factory, the user cannot change these themselves.

Evo Flex Manual

5. Operation

5.1 Main Interface Display and Function

Key No.

Key Name

Key Function

On and off

Click this key to switch ON or OFF

Red represents ON, while grey represents OFF

Mode key

Hot water mode, heating mode, cooling mode, hot water + heating

mode or hot water + cooling mode can be selected by pressing this key

Temperature setting

Click this to set the target temperature

Fast heating

Click this key to start rapid heating

This key will be displayed during heating

Timer setting

Click this key to set the timer. White represents not enabled, while

green represents enabled

Setup key

Click this key to check the unit status, time, factory parameters,

temperature curve, timer setting and mute setting

Fault icon

This icon will flash when there is an error occurring, then the display

will enter the failure record interface after tapping this icon

Icon No.

Icon Name

Meaning

Defrosting

The machine is in defrosting mode when this icon is shown

Hot Water Mode

This machine is in hot water mode then this icon is shown

Heating Mode

This machine is in heating mode when this icon is displayed

5.2 Functions of the Controller

5.2.1 Turning On & Off

1. In the shut-down interface (on/off key will be in grey), press the on/off key to start the unit

2. In the starting-up interface (on/off key will be red), pressing on/off will turn the unit off

Evo Flex Manual

5.2.2 Mode Switch

In the main interface, there are five modes that can be selected after tapping the mode key:

Note: If you have purchased a heating-only model (with no cooling functions), “cooling” mode will not appear

5.2.3 Setting Target Temperature

1. Pressing (1) will bring the controller back to the main

interface

2. Pressing (2) will allow the target temperature to be

set, a pop-up keyboard will appear

3. Pressing (3) will allow the target temperature of

cooling mode to be set through the keyboard

When the target temperature is being set, the following keyboard will appear

1. New target temperature under current settings

2. Return Key: returns you to the main interface

3. Delete Key: will undo your last action

4. Enter Key: Saves changes and return to menu

5.2.4 Fast Heating

Under heating mode, click the fast heating key (1) and the

following interface will appear. Click (2) to start fast-heating

mode and (3) to close it.

Evo Flex Manual

5.2.5 Timer Setting

Click the timer setting key to enter the timer settings and the following interface will appear

EXAMPLE: The unit will start-up at 17:10 and shut-down at 20:10.

KEY NAME

KEY COLOUR

KEY FUNCTION

Return

Key

Click this key to return to

the main interface

Enable

Timer

Enable: Green ON

Disable: Grey OFF

Click this key to start or turn

off the timed start up

function

Enable

Timer

OFF

Enable: Green ON

Disable: Grey OFF

Click this key to start or turn

off the timed start up

function

5.2.6 Setup Interface

Key Name

Key Function

1 Status Key Click this key to get into the status interface

2 Clock Key

Click this key to set the operational time

function

3 Mute Key

Click to turn on/off silent function and to

set the timing interval function

4 Factory Key

Click this key to get into the factory

interface

5 Curve Key

Click this key to look up the temperature

curve

5.2.7 Setting the Date & Time

From the setup interface, press Clock to enter into the date & time setting interface. Use the arrows to adjust the

date and time as required, then press the Enter button to save changes. Press the return key to return to the

previous interface or press cancel to exit current settings.

Note: in Fahrenheit mode the system date format is: dd/mm/yy

Evo Flex Manual

5.2.8 Fault Interface

Click the fault icon on the main interface and it will display as follows:

1 Fault code

2 Fault Name

3 Date of fault occurrence (dd/mm/yy)

4 Click to clear all fault records

5.2.9 Colour Display Calibration

Keep clicking quickly at the blank area on any interface till you hear a long beep. Then you will enter the calibration

interface. Click "+" to start calibration. When you hear the beep again, you will have finished calibration and can exit.

Evo Flex Manual

6. Troubleshooting

6.1 Electronic Control Fault Table

Protect/Fault

Fault

Display

Reason

Elimination Methods

Inlet Temp. Sensor Fault

P01

The temp. sensor is broken or

short circuited