Bosch EHP 6-11 LW Installation guide

Heat Pump Compress 3000
6 720 642 634 (2009/11)
EHP 6-11 LW/M | EHP 6-17 LW
En User and Installation Guide
User and installer manual for Bosch Compress heat pumps
Bosch, 2009-11-30
Article number: 6 720 642 634
Version 2009/11
Copyright © 2009.
2
Table of Contents
Table of Contents
FOR THE USER .............................................................................................................. 5
Important information ....................................................................................... 5
This is how your heat pump works ..................................................................... 6
Technology in and around the heat pump ................................................................................................................6
Component parts of the heat pump .................................................................... 8
LWM model ............................................................................................................................................................8
LW model................................................................................................................................................................9
Control unit .................................................................................................... 10
The control unit’s two methods to control the heat pump........................................................................................11
Control panel .................................................................................................. 12
Controls and status lamps ....................................................................................................................................12
Menu dial .............................................................................................................................................................13
How to use the control panel .................................................................................................................................13
Basic functions (Customer level 1 .................................................................... 13
Menu outline for Basic functions (Customer level 1) ............................................................................................14
Select scrolling information on the menu display ...................................................................................................14
Set the heating ......................................................................................................................................................15
Set the desired room temperature ..........................................................................................................................18
Set the heat pump for extra hot water ....................................................................................................................18
Heating and hot water settings .............................................................................................................................19
Read the temperatures on the heat pump ...............................................................................................................19
Extra functions (Customer level 2) ................................................................... 21
Menu outline for Extra functions (Customer level 2) .............................................................................................21
Temperature settings .............................................................................................................................................22
Set extra heat curve with mixing valve ..................................................................................................................23
Hot water settings..................................................................................................................................................24
Timer control ........................................................................................................................................................24
Reading operating times on the heat pump and additional heat ............................................................................25
Set the time and date ............................................................................................................................................26
Alarms given by the heat pump .............................................................................................................................27
Return to the heat pump’s factory settings ..............................................................................................................27
Maintenance ................................................................................................... 28
Unscrew the front cover ........................................................................................................................................28
Sight glass .............................................................................................................................................................28
Particle filter .........................................................................................................................................................29
Protective anode ...................................................................................................................................................29
What to do if a fault occurs .............................................................................. 30
Dimmed menu display ..........................................................................................................................................30
Fuses and reset buttons on the heat pump .............................................................................................................31
All alarms ............................................................................................................................................................31
3
Table of Contents
FOR THE INSTALLER ................................................................................................... 39
Important information to the installer ............................................................... 40
Checklist ........................................................................................................ 40
What the shipment includes ............................................................................. 41
Dimensions and plumbing connections ............................................................. 42
The heat pump and collector hose in general..................................................... 43
Transporting the heat pump ..................................................................................................................................43
Positioning the heat pump .....................................................................................................................................43
Maximum working temperatures ..........................................................................................................................43
Minimum working temperatures ...........................................................................................................................43
Fit the particle filter ..............................................................................................................................................43
Collector hose ........................................................................................................................................................44
Preparations before connection ........................................................................ 47
Moving the heat transfer fluid pipe for side entry ...................................................................................................47
Supplementing the heat pump with a groundwater system .....................................................................................50
Connection to groundwater system: electrical connection .......................................................................................51
Connecting the heat pump to the heating system ............................................... 51
Connecting to the heating system without a bypass: ................................................................................................52
Connect heat pump LWM model to the heating system...........................................................................................53
Connect heat pump LW model to the heating system ..............................................................................................54
LWM model: individual temperature control in each room, increasing volume of internal water and bypass.........55
LW model: individual temperature control in each room, increasing volume of internal water and bypass ............56
LWM model: Increasing volume of internal water without bypass..........................................................................57
LW model: Increasing volume of internal water without bypass .............................................................................58
Filling water in the heating system ........................................................................................................................59
Filling the heat transfer fluid in the collector hose .................................................................................................59
Connecting the heat pump to the power supply ................................................. 62
External connections to the heat pump ..................................................................................................................63
Connecting the general alarm, external input and load monitor............................................................................64
Installer and ser vice menu (I/S) ...................................................................... 65
How to use the control panel .................................................................................................................................65
Commissioning the heat pump ......................................................................... 66
Menu displays you might need to adjust or check ...................................................................................................67
Drying program for floor tile .................................................................................................................................70
Manual test run of the heat pump .........................................................................................................................71
Start the heat pump with only additional heat.......................................................................................................71
Important points to check after start up.................................................................................................................71
Technical information ...................................................................................... 74
The heat pump’s factory settings ............................................................................................................................74
Sensor table...........................................................................................................................................................74
Hot water cylinder for ECOLANE Heat Pump ......................................................................................................75
Technical information for three-phase models........................................................................................................76
Technical information single-phase models............................................................................................................77
4
For the user
Important information
Your new heat pump represents a new generation of heat pumps from
Bosch. It contains numerous functions to control the temperature and
production of hot water in the house. The control unit includes a control
and monitoring function that stores important settings about the heat
pump’s operation and maintenance. The settings are made by the installer
and the user via a control panel on the front of the heat pump. Settings
intended for the user, are presented under the headings Basic functions
and Extra functions.
When the heat pump has been installed and started there are a number of
points you should check regularly. This may concern an alarm triggering
or performing basic maintenance actions. First of all you should perform
these actions yourself. This manual describes each step in detail. If the
problem remains you should contact your dealer.
5
Note
It is important as the user that you
read through this chapter.
Under no circumstances may the user
make settings that are designed for
the installer. This can cause serious
malfunction of the heat pump.
FOR THE USER
This is how your heat pump works
This is how your heat pump works
The heat pump collects stored solar energy
The heat pump has been manufactured for easy and reliable use as well as to provide your house with inexpensive and
environment friendly heating. The easiest way to describe how a heat pump works is to say it works like a refrigerator,
however, the other way round. In a refrigerator, heat is moved from the inside to the outside. In a heat pump, heat stored in
the ground, rock or water, is moved into the house. The heat pump collects a few degrees of the stored solar energy. The
heat is led into the house via a hose. The temperature is then increased in the heat pump and the heat is distributed to the
house’s heating system.
Rock heat
Soil heat
Technology in and around the heat pump
The heat pump consists of four main parts:
1. Evaporator
The evaporator evaporates the refrigerant to gas and transfers heat
from the heat transfer fluid to the refrigerant circuit.
2. Condenser
The condenser condenses the vapour to fluid again and transfers the
heat to the heating system.
3. Expansion valve
Lowers the pressure of the refrigerant.
4. Compressor
The compressor increases the pressure of the refrigerant.
These four main parts are linked in three circuits. A refrigerant circulates
in the heat pump, which in some parts of the circuit is in a liquid state and
in other parts in a gas state. Read more about the properties of the refrigerant in the sidebar to the right.
See the detailed description of the technologies used in the heat pump on
the next page.
6
Lake heat
Note
Boiling point in relation to the
pressure:
The boiling point of different liquids
varies with pressure, the higher the
pressure, the higher the boiling point.
For example, water boils at +100ºC
at normal pressure. Double the pressure and water boils at +120ºC. Half
the pressure and water then boils at
+80ºC. The refrigerant in the heat
pump acts in the same way, the boiling point changes when the pressure
changes. However, the boiling point of
the refrigerant is as low as approximately -40ºC at atmospheric pressure.
Consequently, it is also suitable for
low heat source temperatures.
This is how your heat pump works
Heat transfer fluid
pump
1
2
3
0ºC
4
+100ºC
0ºC
Floor heating
6
Soil
-3ºC
-10ºC
5
Circulation pump
Radiator
Heat pump
Rock
Fan-assisted
radiator
1
Heat transfer fluid in. The heat pump collects stored solar energy. It contains a heat transfer fluid which is a
solution of water and antifreeze, glycol. The antifreeze mixture collects the heat from the rock and with the
help of the heat transfer fluid it is led into the evaporator. The temperature is then approximately 0ºC.
2
In the evaporator, the heat transfer fluid meets the refrigerant. At this stage, the refrigerant is in a fluid state
and is at approximately -10ºC. When the refrigerant meets the zero degree heat transfer fluid it starts to boil.
It then forms a vapour, which is led into the compressor. The temperature of the vapour is 0ºC.
3
The pressure of the refrigerant increases in the compressor and the vapour temperature rises from 0ºC to
approximately +100ºC. The warm gas is then forced into the condenser.
4
The condenser transfers the heat to the house’s heating system (radiators and floor heating) and the hot
water system. The vapour is cooled in the condenser and becomes fluid. The pressure in the refrigerant is still
high when it is led on to the expansion valve.
5
The refrigerant pressure is lowered in the expansion valve. At the same time, the temperature also drops to
approximately -10ºC. When the refrigerant passes the valve and the evaporator it changes to vapour again.
There is also a valve for regulating refrigerant flow.
6
The heat transfer fluid is led out from the heat pump to the rock to collect new stored solar energy. The heat
transfer fluid is led out from the heat pump to the rock to collect new stored solar energy. The temperature of
the fluid is approximately -3ºC.
7
FOR THE USER
“The hot side”
“The cold side”
FOR THE USER
Component parts of the heat pump
Component parts of the heat pump
LWM model
Three-way valve
The valve switches between heating
the heating water and hot water.
Electrical connections
Connections for the mains supply
as well as sensors.
Venting nipple
The nipple is used to vent the heating
water in the hot water cylinder.
Control panel
The control panel has a background lit menu display with four
rows of text information, three
buttons and a dial.
Hot water cylinder
The cylinder is double-shelled and
holds approximately 163 litres of hot
water and 57 litres of the heating
water.
Distribution box
The distribution box is enclosed.
It houses a reset function for the
motor cut-out as well as miniature
circuit breakers (MCB) for the
heat pump and electric cassette.
Electric cassette
The electric cassette is used to
provide extra output in cold weather
conditions, with large water consumption and at hot water peaks.
Reset button
Press in the button if the overheat
protector on the electric cassette has
tripped. The button is located on the
side.
Heat transfer fluid pump
The pump is insulated and
features an anti-corrosive finish.
It ensures the heat transfer fluid
circulates from, e.g. the rock to
the heat pump.
Condenser (not visable)
The condenser condenses the
vapour to fluid again and transfers
the heat to the heating system.
Evaporator
The evaporator evaporates the
refrigerant to gas and transfers
heat from the heat transfer fluid to
the refrigerant circuit.
Circulation pump
The pump ensures the heating water
circulates within the heating system.
Compressor
The compressor increases the
pressure of the refrigerant. The
temperature of the vapour increases
from 0ºC to approximately +100ºC.
The compressor is insulated to
reduce the noise level.
Flexible hoses
The hoses counteract vibrations in
the heat pump.
Control unit
The control unit is enclosed. It
controls and monitors all heat
pump functions.
Sight glass
Sight glass to check the level in the refrigerant circuit. Air bubbles must not form
in the sight glass when the heat pump is
running. However, there might be bubbles
when the heat pump is started and stopped.
8
Expansion valve
Lowers the pressure of the refrigerant that enters the evaporator
and collects energy from, e.g. the
rock.
LW model
Electrical connections
Connections for the mains supply
as well as sensors.
Three-way valve
The valve switches between
heating the heating water and hot
water.
Particle filter
The filter can be opened for easy
cleaning. It also has a shut off
function.
Control panel
The control panel has a background lit menu display with four
rows of text information, three
buttons and a dial.
Electric cassette
The electric cassette is used
to provide extra output in cold
weather conditions, with large
water consumption and at hot
water peaks.
Distribution box
The distribution box is enclosed.
It houses a reset function for the
motor cut-out as well as miniature
circuit breakers (MCB) for the
heat pump and electric cassette.
Reset button
Press in the button if the overheat
protector on the electric cassette
has tripped. The button is located
on the side.
Control unit
The control unit is enclosed. It
controls and monitors all heat
pump functions.
Condenser
The condenser condenses the
vapour to fluid again and transfers
the heat to the heating system.
Evaporator
The evaporator evaporates the
refrigerant to gas and transfers
heat from the heat transfer fluid to
the refrigerant circuit.
Circulation pump
The pump ensures the heating
water circulates within the heating
system.
Flexible hoses
The hoses counteract vibrations in the heat pump.
Compressor
The compressor increases the
pressure of the refrigerant.
The temperature of the vapour
increases from 0ºC to approximately +100ºC. The compressor is
insulated to reduce the noise level.
Sight glass
Sight glass to check the level in the
refrigerant circuit. Air bubbles must
not form in the sight glass when the
heat pump is running. However, there
might be bubbles when the heat
pump is started and stopped.
9
Heat transfer fluid pump
The pump is insulated and features
an anti-corrosive finish. It ensures
the heat transfer fluid circulates
from, e.g. the rock to the heat
pump.
Expansion valve
Lowers the pressure of the
refrigerant that enters the evaporator and collects energy from, e.g.
the rock.
FOR THE USER
Component parts of the heat pump
FOR THE USER
Control unit
Control unit
The control unit is the brains of the heat pump. It makes sure the heat
pump gives the best energy savings and that it runs for many years. The
control unit controls and monitors the heating and hot water supply in your
house. The monitoring function is especially important. It shuts down the
heat pump in the event of operational disturbances so that no critical parts
are damaged.
Three-way
valve
Electric cassette
(additional heat)
Additional heat gives more output
When the heat pump can not manage to heat the house by itself, for
example, if there is a considerable drop in the outdoor temperature, the
control unit ensures the additional heat source is connected. Together
the heat pump and additional heat guarantee the right temperature in the
house. Additional heat is provided by a built in electric cassette. Additional
heat can never completely take over the heating from the heat pump. It
only adds the output necessary for the heat pump to be able to produce the
right temperature. When the heat pump can once again manage heating on
its own the additional heat is automatically disconnected.
Control unit
Hot water is given priority over heating water
In a house with water based heating a difference is made between heating
water and hot water. The heating water is for radiators/floor heating and
hot water is for showers and taps. Hot water is heated in a hot water heater.
The hot water heater is fitted with a sensor that senses the temperature of
the hot water. LWM models include a hot water heater in the heat pump
while LW models have an external hot water heater. The heating water
passes through the hot water cylinder’s outer shell and heats up the hot
water heater’s inner tank. The control unit makes sure the heating of hot
water is always given priority over the heating of the heating water. This
means you never need to be without hot water. The control unit controls a
three-way valve that switches between heating the heating water and hot
water. Once the hot water has been heated the three-way valve switches so
that the heating water is heated.
Hot water
Heating water
Double-shelled hot water heater
10
Control unit
FOR THE USER
The control unit’s two methods to control
the heat pump
The control unit uses two different methods to control the heat pump.
These two methods are: Control with an outdoor sensor and Control with
an outdoor sensor supplemented with a room sensor.
Control with outdoor sensor
Control with an outdoor sensor is the most common method used by the
control unit to control the heat pump. A sensor is installed on the external
wall of the house. It sends out signals for regulating the heat pump. Control
with an outdoor sensor means that the heat pump automatically regulates
the heating in the house depending on the outdoor temperature. If the
outdoor temperature drops, i.e. it becomes colder; the radiators inside the
house will become warmer.
You determine the temperature of the radiators, in relation to the outdoor
temperature, with the help of a number of settings such as selecting the
heat curve on the control unit. A lower curve gives higher energy savings.
Control with outdoor sensor supplemented with
room sensor
Control with an outdoor sensor supplemented with a room sensor means
that you also place a sensor in a central position inside the house. This is
connected to the heat pump and provides the control unit with information
about the room temperature. The signals affect the control unit’s settings
(curves) and ensure the heat pump gives the best possible energy savings.
This control method is used when factors other than the outdoor temperature influence the indoor temperature. Examples include the use of a stove
or fan-assisted radiator or if the house is sensitive to the wind.
11
Note
It is only the room where the room
sensor is located that can influence
regulation of the temperature.
Note
The room sensor influence is inhibited
24 hours after using clock setting for
the heating, or any type of external
control of the heat pump.
FOR THE USER
Control panel
Control panel
All settings are made from the control panel. It also displays heat production
statistics and information about different alarms. When you have made your
settings, the control panel makes sure they are saved in the control unit to
carry out your wishes.
Controls and status lamps
Power switch (ON/OFF)
You start and stop the heat pump using the power
switch button.
Lamp on: The heat pump is on.
Lamp flashes: The heat pump is off.
Alarm status
Lamp flashes: A fault has occurred in the heat
pump.
Lamp on: The alarm has been acknowledged, but
the fault remains.
Temp. incr. /
decr.
Info
Menu
Temp. incr. / decr.
Pressing once gives a shortcut to the most frequent
temperature settings.
Reg 637
K1
040622 16:08:15 Tu
temp.
Info
Menu
Info
Pressing once gives continuous information about the
heat pump’s and additional heat’s operating conditions.
Status lamps
Menu
Press once to enter the main menu.
The main menu contains all setting menus and
temperature displays.
Power switch
(ON/OFF)
Menu display
Rego 637
Menu buttons
12
K1
040622 16:08:15 Ma
temp.
Info
Menu
Menu dial
Control panel
FOR THE USER
Menu dial
The menu dial is used to scroll through the menu display windows. Turn the
menu dial clockwise (to the right) to move down through the menus. Turn the
menu dial anti-clockwise (to the left) to move up through the menus. You also
determine the values of different settings by using the dial.
The menu display gives you information and the chance to make settings. You
can:
Initial menu display
Choose different temperature and hot water settings.
Choose extra hot water and the holiday function.
See alarm causes and receive corrective instructions.
Obtain operating statistics.
Reg 637
K1
040622 16:08:15 Tu
Temp.
Info
Menu
How to use the control panel
Reg 637
The principle of the control panel is based on the user using three
menu buttons and a menu dial to move between the different
menus and settings. On the lower row of the menu display you will
always see information about the significance of the buttons. The
function of the buttons changes depending on which window you
are currently in.
040622 16:08:15 Tu
Temp.
Info
Menu
+
Example
If, from the initial menu, you press the Heat button, you will access
the menu Temp. incr. / decr.. +/-. In this menu you can increase and
decrease the heating in the house. Note that the significance of the
buttons has now changed. You can either return to the initial menu
by pressing the Return button or you can choose to change the
heating setting in the house by pressing the Adjust button. If you
press the Adjust button you can increase or decrease the heating in
the house by using the menu dial. Save your adjustment by pressing
the Save button.
Basic functions (Customer level 1)
temp. +/0
Return
5,0
Initial menu
10
Adjust
Customer level 1
Reg 637
Basic functions (Customer level 1) are the functions most frequently used
and the ones you have the most benefit of. You reach the basic functions
by pressing one of the Heat, Info or Menu buttons in the initial menu. The
designation K1 in the upper right corner indicates you are in Basic functions
- Customer level 1.
K1
040622 16:08:15 Tu
temp.
Info
Menu
Date
13
K1
Time
Day
Basic functions - Customer level 1
FOR THE USER
Menu outline for Basic functions (Customer level 1)
Reg 637
K1
Note
040622 16:08:15 Tu
temp. Info
Menu
Each menu is numbered in the lower
right-hand corner; this indicates which
main display it is associated to.
Main menu
Indoor temperature
settings
1
temp. +/Page 16
Temp. Fine-tune
Page 17
Room temperature
Page 18
Extra hotwater
Page 18
STANDBY
no rad heat required
No need
for hot water mode
Page 15
HOT WATER MODE
Heat pump only
Page 15
HEATING Mode
HP and add. heat
Page 15
Heat rad required
Heat pump starts
in #### seconds
Main menu
Adjusting the hot
water settings
Page 19
Temperature settings
Temp. incr. / decr.
range 0-10
1.1
Temp. settings
Adjust temp.
range -10/+10 1.2
Page 17
Temp. settings
1.10
Page 18
Page 15
Page 18
3
Page 19
Page 19
Hot water setting
Duration of
add. hot water 2.1
Page 16
Int. temp
2
Main menu
Monitor all
temperatures
Temperature readings
Return radiator GT1
Temperature readings
Out GT2
Temperature readings
Hot water GT3
Temperature readings
Shunt, flow GT4
Temperature readings
Room GT5
Temperature readings
Compressor GT6
Temperature readings
Heat trfluid out GT8
=
=
The menu display is standard on all
heat pumps.
Temperature readings
Heat tr fluid in GT9
The menu display is only shown on
the heat pump in combination with an
extra sensor or for a specific model.
Temperature readings
Ht trfld(coll)inGT10
Temperature readings
Httrfld(coll)out GT11
Page 20
Select scrolling information on the menu display
Reg 637
If you press the Info button in the initial menu, you will receive continuous
information about the heat pump’s operation and working temperatures.
This is what to do:
1. Press the Info button in the initial menu.
Here follows a few of the windows displayed:
14
K1
040622 16:08:15 Tu
temp. Info
Menu
The heat pump is in standby mode.
STANDBY
No rad heat required
No need
for hot water mode
The heat pump is producing hot water. You see at which temperature
the heat pump will stop and the present temperature. Note that the stop
temperature is read at the bottom of the heater. The hot water is a few
degrees warmer.
HOTWATER MODE
Heat pump only
Supp. temp.
53,0°
Present temp
42.0°
The heat pump and additional heat are running.
HEATING Mode
HP and add. heat
Supp. temp.
45,0°
Present temp
44.0°
The heat pump has received signals that it should produce heating. It now
waits for the restart time to countdown to zero.
Heat rad required
Heat pump starts
in 320 seconds
Return to the initial menu by pressing one of the buttons or turn the dial.
Set the heating
It is easy to set the heating level on the heat pump. However, before we
explaaccord. to clockow to do this it is important to understand the relation
between the outdoor temperature, return temperature and heat curve
slope. The easiest way to explain the relation is with a heat curve.
Heat cur ve
You use the heat curve to help set the indoor temperature you would
like. The heat pump is controlled by the outdoor temperature. When the
weather becomes colder, the heat pump ensures more heating is produced
automatically.
Return temperature:
The return temperature is the temperature of the water that returns to the
heat pump from the radiators. The water led out from the heat pump to the
heating system is normally 7-10ºC higher than the return temperature.
When the outdoor temperature is -10ºC and curve 4 is set, the pump
attempts to keep the return water at approximately 40ºC.
Outdoor temperature:
The outdoor temperature determines how much heating the heat pump
should produce. A sensor placed outdoors sends signals to the control unit,
which then adjusts the heat pump.
Cur ve slope:
You can change the curve slope to increase or decrease the heating in the
house. The scale is between 0-10.
15
Note
On delivery the heat pump curve
slope is set to position 4. This means
that the return temperature is +35ºC
when it is 0ºC outdoors.
FOR THE USER
Basic functions - Customer level 1
Basic functions - Customer level 1
FOR THE USER
Change the cur ve slope
The heat pump’s production of heat is adjusted by increasing or decreasing
the curve slope in the Temp. incr. / decr. menu. This is especially effective
in cold weather conditions.
Return temperature (ºC)
Curve slope (0-10)
Cur ve slope:
2-4
Normal setting for floor heating..
4-6.5 Normal setting for radiators.
7-10 Abnormal high setting.
Outdoor temperature (ºC)
Dashed line:
If the return temperature exceeds 57ºC an alarm is given and the compressor switches off. The heat pump starts automatically when the return
temperature drops.
From the heat curve we see that
curve slope 4 gives a return temperature of +35ºC when it is 0ºC outdoors.
If the outdoor temperature drops we
can see that the return temperature
increases. The colder the outdoor
temperature the higher the return
temperature. At an outdoor temperature of approximately -30ºC we see
the curve slope has nearly reached
the limit value (+57ºC) for the return
temperature.
In cold weather (below +5ºC):
If you are not satisfied with the indoor temperature when it is colder than +5ºC
outdoors, you need to change the slope of the heat curve.
This is what to do:
1. Press the Heat button in the initial menu.
You should wait at least two days
when increasing or decreasing the
heating before making a new adjustment.
temp. +/0
Return
4,0
10
Adjust
2. Press the Adjust button.
3. Turn the menu dial clockwise to increase the heating.
Turn the menu dial anti-clockwise to lower the heating.
(Adjust in small increments, 0.2-0.6 units, is usually enough.)
temp. +/0
Return
5,0
Note
10
Save
4. Save the new value by pressing the Save button.
16
If it is still difficult to get a comfortable indoor temperature at an outdoor
temperature around 0ºC, despite
several attempts, you should adapt
the heat curve. Read about how
to “adapt the curve” in the section
Extra functions – Customer level 2 /
Temperature settings / Adapting the
heat curve.
Basic functions - Customer level 1
Fine-tune the heat cur ve
FOR THE USER
The heat curve can also be fine-tuned. Fine-tuning means that you offset
the heat curve in parallel. Fine-tuning is done from the Temp. fine-tune
menu. The diagram for fine-tuning shows how the dashed line has been
offset upwards in parallel. This means the heating has been fine-tuned in a
positive direction and the heat pump will be instructed to maintain a higher
temperature on the return water at all outdoor temperatures.
Return temperature (ºC)
By using the menu dial on the control panel
the fine-tuning line has been moved up so the
heat pump produces more heat.
Outdoor temperature (ºC)
In warm weather (above +5ºC):
If you are not satisfied with the indoor temperature when it is warmer than
+5ºC outdoors, you should offset the curve in the Temp. fine-tune menu.
This is what to do:
1. Press the Heat button in the initial menu.
2. Turn the menu dial clockwise until you reach the menu Temp. finetune.3.
Temp. Fine-tune menu
-10°
Return
0,0
10°
Adjust
3. Press the Adjust button.
4. Turn the menu dial clockwise to increase the room temperature. Turn
the menu dial anti-clockwise to lower the room temperature. (Adjust in
small increments, 0.2-0.6 units, is usually enough.)
5. Save the new value by pressing the Save button.
17
Basic functions - Customer level 1
FOR THE USER
Set the desired room temperature
If you have a room sensor connected to the heat pump you can set the required
temperature in the room from the Room temperature menu. From Extra
functions (Customer level 2) you can also set how much you want the sensor to
influence the heating system.
This is what to do:
1. Press the Heat button in the initial menu.
Note
The example describes how to set the
required room temperature with the
help of a connected room sensor. The
range is 10ºC to 30ºC.
2. Turn the menu dial clockwise until you reach the menu Room temperature.
Room temperature
10°
Return
20,0
30°
adjust
3. Press the Adjust button.
4. Turn the menu dial clockwise to increase the room temperature. Turn the
menu dial anti-clockwise to lower the room temperature.
5. Save the new value by pressing the Save button.
Set the heat pump for extra hot water
You can obtain extra hot water by temporarily increasing the temperature
of the water in the hot water cylinder. This may be appropriate when, for
example, a large number of people need to shower. You choose how long
the function should run using the Extra hotwater menu. . This is what to
do:
1. Press the Heat button in the initial menu.
2. Turn the menu dial clockwise until you reach the menu Extra
hotwater.3. .
Add. hot water
1h
Return
24h
48h
adjust
Note
3. Press the Adjust button.
4. Turn the menu dial clockwise to choose the number of hours that the
electric cassette should be on (e.g. 24 hours).
Add. hot water
1h
Return
24h
48h
Save
5. Save the new value by pressing the Save button.
18
When the set time has elapsed you
must repeat the setting to get extra
hot water again.
Basic functions - Customer level 1
Move to the temperature settings for heating on Customer level 1 like this:
1. Press the Menu button in the initial menu.
Reg 637
Main menu
Indoor temperature
settings
1
Return
Select
K1
040622 16:08:15 Tu
temp.
Info
Menu
2. Press the Select button and scroll through the heating menus with the
menu dial.
Move to the temperature settings for hot water on Customer level 1 like this:
1. Turn the menu dial clockwise until you reach the menu Adjusting the
hot water settings .
Main menu
Adjusting the hot
water settings
2
Return
Select
Note
2. Press the Select button and scroll through the hot water menus with
the menu dial.
Read the temperatures on the heat pump
There are several different temperature sensors in the heat pump. Each
sensor plays an important part in the heat pump’s daily operations. It may,
for example, adjust the heat production so that the pump does not become
overheated. Proceed as follows to read the temperatures on the heat pump:
1. Press the Menu button in the initial menu.
2. Turn the menu dial clockwise until you reach the menu Monitor all
temperatures (menu 3).
Main menu
Monitor all temp.
on the screen
3
Return
Select
3. Press the Select button.
4. Turn the menu dial to scroll through all the heat pump’s temperature
sensors. See the next page.
19
Each menu is numbered in the lower
right-hand corner; this indicates which
main display it is associated to.
FOR THE USER
Heating and hot water settings
Basic functions - Customer level 1
FOR THE USER
All menus relating to temperature sensors
Note
All the menus associated with the heat pump temperature sensors are shown
below. Note that you cannot make any settings in these menus, only read the
current values. Some menus are standard for all models of Ecolane SE while
others are only available in combination with different accessories.
The sensors give an alarm if the temperature is outside of the permitted
range/values.
All sensors are not included as
standard on the heat pump, some are
available as accessories for different
application areas. See more information under respective menus.
Temperature readings
Return radiator GT1
Off 41.3O now 40.3O
Return
The menu shows the temperature in the heating system’s return, i.e. the water from the
radiators back to the heat pump accord. to clockeating mode. The temperature varies with
the outdoor temperature.
Temperature readings
Out GT2
14,0°
Return
The menu shows the outdoor temperature. Some deviation compared to the true temperature may occur due to thermal radiation from the house to the installed outdoor sensor.
Temperature readings
Hot water GT3
Set 51.0° now 50.0°
Return
Temperature readings
Shunt, flow GT4
Set 40.3° now 43.0°
Return
Temperature readings
Room GT5
Set 20.0° now 19.5°
Return
Temperature readings
Compressor GT6
90,0°
Return
Temperature readings
Heat tr fluid out GT8
45,0°
Return
Temperature readings
Heat tr fluid in GT9
40,3°
Return
Temperature readings
Ht trfld(coll)inGT10
0,0°
Return
The menu shows the set and present temperature in the lower section of the outer
container in the hot water heater. The temperature is approximately 5ºC lower than the
temperature of the hot water inside the inner container.
The menu only applies together with a flow sensor. If an extra curve with mixing valve
is used, for example, for a floor heating system, you can see the temperature on the flow
water in the circuit. The temperature varies with the outdoor temperature.
The menu only applies together with a room sensor. The menu shows the set point value
and present temperature in the room where the sensor is fitted.
The menu shows the compressor’s working temperature. The temperature varies
between 70ºC and 125ºC during operations.
The menu shows the temperature of the radiator water as it leaves the heat pump. It
varies depending on the outdoor temperature and whether the heat pump is accord. to
clockot water production mode.
The menu shows the temperature of the water that is led into the heat pump. It varies
depending on the outdoor temperature and whether the heat pump is accord. to clockot
water production mode. The heat pump stops at 57ºC for reasons of safety.
The menu shows the temperature of the heat transfer fluid that is led into the heat pump
from the bore hole or the ground. It can vary between -5ºC to +15ºC during a season.
The menu shows the temperature of the heat transfer fluid that is led out of the heat
pump to the bore hole or the ground. Normally, during operations, it is 1.5 - 5.0 degrees
lower than the heat transfer fluid that is led into the heat pump.
Temperature readings
Httrfld(coll)outGT11
-4,0°
Return
20
Extra functions - Customer level 2
Extra functions (Customer level 2)
(Initial menu)
1. Press the Heat button until Access = CUSTOMER2 is displayed.
2. Press the Menu button to open the Main menu. From Customer level 2 you
also have access to all Customer level 1 functions.
K2
FOR THE USER
Reg 637
The section Basic functions (Customer level 1) contains the functions that you will
probably use the most and which you will receive the most benefit from. However,
there are numerous extra functions that you can use to control your heat pump.
This can, for example, include activating the heat pump’s holiday function or
setting the time and date. If no settings are made on Customer level 2 (K2), the
menu display will automatically return to Customer level 1 (K1) after 30 minutes.
Proceed as follows to access the extra functions on Customer level 2:
040622 16:08:15 Tu
temp. Info
Menu
Press the Heat button until Access
= CUSTOMER2 is displayed.
Menu outline for Extra functions (Customer level 2)
Reg 637
K2
040622 16:08:15 Tu
temp. Info
Menu
Menu principal
Room temp. setting
1
Main menu
Adjusting the hot
water settings
Page 23
Heat curve
fine-tuning
1.3
Page 22
V3V +/interv. 0-10
2
Main menu
Timer control
settings
Page 24
Page 25
2.2
Clock setting HP
accord. to clock 4.1
Add. heat in operat.
number of hours? 7.1
Page 24
Page 24
Page 26
interval for
hot water peak
Setting level
heat pump +/-
1.5
1.6
4.1.1
Distribution HP
DHW-Rad in %
Main menu
Clock, setting
time and date
10
Page 27
Main menu
Alarm logging
of all alarms
11
Page 27
7.2
Page 25
Page 26
Clock setting DHW
accord. to clock 4.3
Add. heat in operat.
number of hours? 7.3
Page 25
Page 26
Page 23
Adjust curve
V3V
7
Page 24
Page 23
Adjust. V3V
range -10/+10
4
Main menu
Op. time readings
HP and add. heat
Main menu
Return to
factory settings
12
Page 27
1.7
Page 23
Setting of room
sensor infl
1.11
Note
Page 22
Setting of holiday
function
1.12
=
The menu display is standard
on all heat pumps.
=
The menu display is only
shown on the heat pump in
combination with an extra
sensor or for a specific model.
Page 22
Remote control
temperature
1.13
Page 22
Setting of summer
disconnection
1.14
Page 22
21
From Customer level 2 you also have
access to all the basic functions on
Customer level 1.
Only the most frequently used menus
in Customer level 2 are shown in the
menu outline. All the menus cannot be
presented due to space limitations. Use
the dial to scroll through the menus.
Extra functions - Customer level 2
FOR THE USER
Temperature settings
Proceed as follows to access the temperature settings for the heating on Customer
level 2:
1. Press the Heat button until Access = CUSTOMER2 is displayed.
2. Press the Menu button.
3. Press the Select button and scroll through the menus using the menu dial.
Fine-tune the heat cur ve
You can “break” the heat curve up or down every fifth outdoor degree. For example,
you can make a hump in the curve at 0ºC. Navigate to menu 1.3, press Select and
turn the menu dial until 0°C is displayed in the upper left part of the menu. Press
Adjust and turn the dial to increase or decrease the return temperature. The change
must not exceed 1 - 2°C. Press Save and wait at least 24 hours prior to any further
adjustment. The purpose of breaking the curve is to be able to influence the heat
pump’s heat production at extra sensitive outdoor temperatures.
Room sensor influence
The menu is only shown for heat pumps having a room sensor installed. You use the
menu to set how much the room sensor should influence the heat curve. A higher
value will have a greater effect. Please note that the room sensor only fine-tunes the
heat curve. Consequently, it is important the basic setting of the heat curve’s slope
and fine-tuning are correct.
Holiday mode
The menu is only shown for heat pumps having a room sensor installed. The
holiday function gives you the possibility to choose a number of days when the
room temperature will be lowered to 15ºC (the temperature is not adjustable).
When the days have passed the heat pump returns to the normal heating setting.
Hot water production is not affected by the holiday function.
Remote control
The menu is only shown for heat pumps having a room sensor installed. In addition,
special remote control equipment is needed. This equipment is available as an
accessory. You can switch between the remote control mode and normal mode
using a telephone.
Summer disconnection
The function means the heat pump only produces hot water when the outdoor
temperature rises above the set value.
22
Main menu
Indoor temperature
settings
1
Return
Select
Temperature settings
Heat curve
fine-tuning
1.3
Return
Select
Temperature settings
Setting of room
sensor infl
1.11
Return
Select
Temperature settings
Setting of holiday
function
1.12
Return
Select
Temperature settings
Remote control
temperature
1.13
Return
Select
Temperature settings
Setting of summer
disconnection
1.14
Return
Select
Extra functions - Customer level 2
FOR THE USER
Set extra heat curve with mixing valve
If you have floor heating combined with radiators, you should set an extra heat
curve with mixing valve. The mixing valve is a valve that lets water through in
different amounts. It prevents the floor from becoming too hot and destroying
the flooring. The menu is only displayed when there is an extra flow sensor, T4
(GT4), on the heat pump. You set the extra heat curve using two menus: Mix.
valve incr/decr and Mix. valve fine-tune.
Increase or decrease the mixing valve
1. Press the Heat button until Access = CUSTOMER2 is displayed.
2. Press the Heat button.
3. Turn the menu dial clockwise until you reach the menu Mix. valve incr/
decr.4.
Mix. valve incr/decr
0
Return
2,0
10
adjust
Note
The initial position of the floor heating circuit is heat curve 2.
The scale covers the range 0 to 10.
Extra heat curve with mixing valve
only works with an extra flow sensor
T4 (GT4).
4. Press the Adjust button.
5. Turn the menu dial clockwise to choose a higher heat curve.
Turn the menu dial anti-clockwise to choose a lower heat curve.
6. Save the new value by pressing the Save button.
Fine-tune the mixing valve
1. Press the Heat button until Access = CUSTOMER2 is displayed.
2. Press the Heat button.
3. Turn the menu dial clockwise until you reach the menu Mix. valve fine-tune.
Fine tune mix. valve
-10°
-0,0°
10°
Return
adjust
4. Press the Adjust button.
5. Turn the menu dial clockwise to set an upward, parallel offset on the curve.
Turn the menu dial anti-clockwise to set a downward parallel offset on the
curve.
6. Save the new value by pressing the Save button.
23
Note
The example describes how to finetune the extra heat curve. The scale
covers the range -10ºC to +10ºC.
Extra functions - Customer level 2
Hot water peak
Recurring increase in the hot water temperature
The Range for hot water peak menu is used to set the range for a recurring
increase in the hot water temperature. This function takes the water temperature temporarily up to approximately 65°C. Three settings are possible:
inactive (default), daily or preferred day.
Hot water
range for
hot water peak
2.2
Return
Select
Timer control
Open the setting menus for timer control like this:
1. Press the Heat button until Access = CUSTOMER2 is displayed.
2. Press the Menu button.
3. Turn the menu dial clockwise until you access the menu Timer control
settings (menu 4).
4. Press the Select button and scroll through the menus using the menu dial.
Clock setting of the heat pump according to clock
The function Clock setting HP accord. to clock is for those who want the heat
pump to produce different amounts of heat at different times of the day and
on different days of the week. This allows you to make further energy savings.
The room sensor T5 (GT5) influence is inhibited 24 hours after using clock
setting for the heating, or after any type of external control of the heat pump.
This allows the heating to return to ordinary settings. In practise this means
that should clock setting of the heating apply each night, then the room sensor
has no function except temperature readings.
Example:
You want to set the heat pump so that it maintains a 3ºC lower radiator temperature on Mondays between 22:00 and 06:00.
Main menu
Indoor temperature
settings
1
Return
Select
Main menu
Timer control
accord. to clock
4
Return
Select
Note
When you have time based tariffs
with cheaper electricity for example
during the night, any savings may be
lost if the return to normal temperature occurs when the more expensive electricity price applies.
Clock setting
Clock setting HP
accord. to clock 4.1
Return
Select
2. Press the Select button.
Timer control HP 1
Mon
00:00-00:00
>
1. Turn the dial clockwise until you access the menu Clock setting HP accord.
to clock (menu 4.1).
Return
adjust
3. Turn the menu dial clockwise to choose the day. Now press the Adjust
button to select the weekday with the symbol ^. Turn the menu dial
clockwise one step to activate the start day. The weekday now has a capital
letter.
>
4. Press the right-hand arrow (->) until the cursor reaches the first two zeros
(00).
Timer control HP 1
Mon
00:00-00:00
Timer control HP 1
Mon
00:00-00:00
Return
Return
24
->
>
>
FOR THE USER
Hot water settings
->
5. Turn the menu dial until the value 22:00:00 is displayed.
Timer control HP 1
Mon
22:00-06:00
6. Press the right-hand arrow twice (->) to move the cursor two steps to
the right.
Return
7. Turn the menu dial until the value 06:00 is displayed.
Timer control HP 1
Mon
22:00-06:00
8. Press the right-hand arrow so it is replaced by the Save function.
Return
->
>
>
<-
9. Finish by pressing the Save button.
10. Press the Return button.
11. Turn the menu dial clockwise until you reach the menu Setting level
heat pump +/- (menu 4.1.1).
12. Press the Select button and set the temperature to -3ºC, which is to
apply for the chosen time intervals.
Do not set a too large temperature reduction, max approx. 3ºC for radiator
systems and max approx. 1.5ºC for floor heating systems is sufficient.
<-
Save
Timer control HP 1
Setting level
heat pump +/- 4.1.1
Return
Select
Note
If you would like to make the setting
for every day of the week, carry out
the instruction shown in the example
seven times, once for each weekday.
13. Finish by pressing the Save button.
The temperature set under 4.1.1 applies to all active time intervals.
Clock setting of the hot water according to clock
The Clock setting DHW accord. to clock (menu 4.3) works in exactly the
same way as Clock setting HP accord. to clock (menu 4.1). You can choose
to completely disable hot water heating to save energy. This is primarily
effective when peak tariffs are charged. The procedure is the same as in
the previous example. Use this to make your settings.
Clock setting
Clock setting DHW
accord. to clock 4.3
Return
Select
Reading operating times on the heat pump
and additional heat
Statistics concerning the heat pump and additional heat operations are
stored in the control unit. For example, you can see how many hours they
have been running. To view the operating times for the heat pump and
additional heat:
1. Press the Heat button until Access = CUSTOMER2 is displayed.
2. Press the Menu button.
25
Main menu
Indoor temperature
settings
1
Return
Select
FOR THE USER
Extra functions - Customer level 2
FOR THE USER
Extra functions - Customer level 2
3. Turn the menu dial clockwise until you reach the menu Op. time
readings on HP and add. heat (menu 7).
4. Press the Select button and scroll through the menus using the menu
dial.
The number of hours the heat pump has been in
operation
Main menu
Op. time readings
HP and add. heat
7
Return
Select
Op. time readings
Add. heat in operat.
number of hours? 7.1
Return
Select
The menu shows the number of hours that the heat pump has been in
operation since the day of installation.
The heat pump’s hot water mode and heating
mode operations as a percentage
Op. time readings
Distribution HP
DHW-Rad in %
7.2
Return
Select
The menu shows the heat pump’s allocation between hot water mode and
heating mode. The allocation is stated as a percentage.
The number of hours additional heat has been in
operation
The menu shows the number of hours additional heat has been in
operation since the day of installation.
Set the time and date
The heat pump has functions that are dependent on both the clock and
date. Thus, it is important that these are correct. This is how you access
the menu Clock, setting time and date:
1. Press the Heat button until Access = CUSTOMER2 is displayed.
2. Press the Menu button.
26
Op. time readings
Add. heat in operat.
number of hours? 7.3
Return
Select
3. Turn the menu dial clockwise until you reach the menu Clock, setting
time and date (menu 10).
4. Press the Select button and make your settings using the menu dial
and menu buttons.
Main menu
Clock, setting
time and date
10
Return
Select
Alarms given by the heat pump
You can easily see any alarms given by the heat pump. The menu provides
you with information about the alarm type and when it occurred. If there is
an asterisk (*) in the menu window this means the alarm is still active, i.e.
the cause of the alarm remains. This is how you access the Alarm logging
of all alarms (menu 11):
1.
Press the Heat button until Access = CUSTOMER2 is displayed.
2.
Press the Menu button.
3.
Turn the menu dial clockwise until you reach the menu Alarm logging
of all alarms (menu 11).
4.
Press the Select button and scroll using the menu dial between any
alarms that may have previously occurred. Alarms are stored in
chronological order. Read more about the heat pump’s alarms under
the heading All alarms.
Main menu
K2
Indoor temperature
settings
1
Return
Select
Main menu
Alarm logging
of all alarms
11
Return
Select
Return to the heat pump’s factory settings
If you want to restore the factory settings on the heat pump you can easily
reset all the settings you have made. This is how you access the Return to
factory settings menu (menu 12):
1.
Press the Heat button until Access = CUSTOMER2 is displayed.
2.
Press the Menu button.
3.
Turn the menu dial clockwise until you reach the menu Return to
factory settings (menu 12).
4.
Press the Select button.
5.
Return to the factory settings by pressing the Yes button.
When you return to the factory settings all the adjustments made on
Customer levels 1 and 2 are reset such as temperature settings and
time control settings.
27
Main menu
K2
Indoor temperature
settings
1
Return
Select
Main menu
Return to
factory settings 12
Return
Select
FOR THE USER
Extra functions - Customer level 2
FOR THE USER
Maintenance
Maintenance
Your heat pump requires a minimum of maintenance, however, we still
recommend some servicing to get optimal performance from your heat
pump. Check the following items a few times during the first year. You
should then check them once or twice a year:
Sight glass
Expansion tank
Particle filter
Protective anode (only models with a stainless steel hot water cylinder)
Unscrew the front cover
Warning
For reasons of safety the main power
supply must be disconnected before
working on the heat pump.
Only an accredited refrigeration
company is permitted to work on the
refrigerant circuit.
Unscrew the front cover
On certain models you will need to open the front cover to access some
of the maintenance areas, e.g. the sight glass and particle filter. The front
cover is secured at the top by two screws.
This is how you remove the front cover from the heat pump:
1. Unscrew the two screws on the top. See the picture.
2. Tilt the front cover towards you.
3. Lift the front cover up to release the lower edge.
Remove the front cover by unscrewing the
screws on the top.
Sight glass
Sometimes when the heat pump has started you can see the fluid in the
refrigerant circuit bubble for a few minutes in the sight glass. This is
completely normal. However, if it bubbles continuously you should contact
your dealer.
Sight glass
If the sight glass shows green this means there is no moisture in the
system. If it is yellow, there is moisture in the system. If this happens,
contact your dealer.
28
LWM model
Maintenance
The task of a particle filter is to ensure no particles or dirt enter the
heat exchangers. Over time the filter can become clogged and will need
cleaning. There are particle filters on both the hot and cold sides. To clean
the particle filters:
1. Shut down the heat pump using the ON/OFF button.
2. Close the valve and unscrew the sealing cap.
3. Loosen the circlip holding the screen in the valve. Use the supplied
circlip pliers.
4. Lift out the screen from the valve and wash clean with water.
5. Refit the screen, the circlip and sealing cap.
6. Open the valve and start the heat pump using the ON/OFF button.
On the cold side the particle filter is
located outside of the heat pump. It
may be concealed by insulation material or a black box.
On LW model the hot side’s particle
filter is fitted inside the heat pump.
On LWM model it is located outside
of the heat pump.
Particle filter
Screen
Circlip
Sealing cap
LW model
Protective anode
Only applies to heat pumps with integrated, stainless hot water cylinder.
A protective anode is located in the top of the cylinder with the task of
preventing corrosion. The hot water cylinder must be filled with water in
order for the anode to work.
If an error occurs, an alarm is activated in the control unit.
29
FOR THE USER
Note
Particle filter
FOR THE USER
What to do if a fault occurs
What to do if a fault occurs
The control unit has an advanced monitoring system that gives alarms if
anything unforeseen happens in the heat pump. Most alarms are rectified
by you the user and there is never any risk that you can damage anything
in the heat pump when you reset an alarm.
If a room sensor is installed the lamp on this will come on when the heat
pump gives an alarm.
Time when the alarm occurred.
Example of an alarm:
Cause.
Info button:
When you press the Info button and turn the menu dial, information is
displayed as well as possible actions to rectify the alarm.
Date when the
alarm occurred.
Alarm
Power failure
040622 16:08:15
Info
Ackn.
Ackn. button:
When you press the Ackn. button, the alarm lamp on the control panel
goes out and the heat pump starts again within 15 minutes if there is a
heating requirement. If the fault has not been rectified the lamp will remain
lit. Should several alarms have occurred on the heat pump, turn the menu
dial clockwise to find out more information about each alarm.
Info
Acknowledge
Dimmed menu display
Possible cause 1: Blown fuse in the house’s fuse box/distribution
box.
Action:
1. Check the fuses in the house’s fuse box.
2. Change the fuse if necessary. If miniature circuitbreakers have tripped these are reset by pushing
up the toggle switch.
3. The heat pump automatically returns to its
operating mode 15 minutes after the fault has been
rectified.
Miniature circuitbreaker LWM model
Miniature circuitbreaker LW model
Possible cause 2: The heat pump’s miniature circuit-breaker has
tripped.
Action:
1. Reset the heat pump’s miniature circuit-breaker by
pushing up the centre toggle switch.
2. The heat pump automatically returns to its
operating mode 15 minutes after the fault has been
rectified.
Note
For technical reasons the heat pump
does not restart until 15 minutes after
a stoppage.
30
What to do if a fault occurs
LWM model
LW model
Particle filter
Cleanable, with shutoff switch.
Fuse 1
Reset for motor cut-out compressor.
Fuse 2
Reset switch for the heat pump’s
miniature circuit-breaker.
Fuse 3
Reset switch for the electric
cassette’s miniature circuit-breaker.
Fuse 4
Reset button for the electric
cassette overheat protection.
Note: The button must be pressed in
firmly.
Sight glass
Sight glass
All alarms
List of all alarms:
An alarm can sometimes occur temporarily due to various reasons.
However, there is never a risk involved in resetting an alarm. All
the alarms that can appear in the menu display are described on
the following pages. The descriptions give you an idea about the
nature of the alarm and what you can do to rectify it. The text often
refers to different fuses and reset buttons on the heat pump. These
are shown in the figures above.
31
Motor cut-out compressor
Motor cut-out HTF pump
Compressor temperature
Low pressure switch
High pressure switch
Electric cassette
Power failure (3-phase)
3-phase incorrect (3-phase)
High return to the heat pump
Heat transfer fluid out max
High heat transfer fluid delta
Sensor fault
Heat transfer fluid in under limit and heat
transfer fluid out under limit
Protective anode
FOR THE USER
Fuses and reset buttons on the heat pump
What to do if a fault occurs
FOR THE USER
Motor cut-out compressor (MB1)
Possible cause 1:
Action:
Intermittent fault or overload on the power supply.
1. Press the Ackn. button.
The alarm indication goes out even if the fault has
not been rectified.
2. Reset the motor cut-out on the heat pump (Fuse 1).
3. Wait for the heat pump to start.
Possible cause 2: Current level (A) on the motor cut-out is set too
low.
The current drawn by the compressor varies during
summer/winter operations.
Action:
1. Contact your dealer.
Possible cause 3: Contactor or cut-out faulty, or loose electrical
connections to the compressor.
Action:
1. Contact your dealer.
The menu display shows:
Alarm
(MB1)
Compr. circ. switch
040622 16:08:15
Info
Ackn.
Note
The reset switch for the compressor
can be found under heading Fuses
and resetting buttons on the heat
pump.
Possible cause 4: Compressor error.
Action:
1. Contact your dealer.
Motor cut-out HTF pump (MB2)
Possible cause 1: The HTF pump is blocked due to contamination.
Action:
1. Press the Ackn. button.
2. Loosen the venting screw and remove the dirt.
3. Help to start the pump with a screwdriver.
The alarm indication goes out even if the fault has
not been rectified.
Possible cause 2: Faulty electric motor on HTF pump.
Action:
1. Contact your dealer.
Possible cause 3: Temporar y error.
Action:
1. Contact your dealer should repeated faults occur.
The menu display shows:
Alarm
(MB2)
HTF c-pump switch
040622 16:08:15
Info
Ackn.
Note
The alarm indication goes out when
acknowledging the alarm even if the
fault has not been rectified.
32
What to do if a fault occurs
Possible cause 1: The working temperature of the compressor is
too high.
Action:
1. Press the Ackn. button.
2. Contact your dealer at repeated alarms.
Alarm
(GT6)
Compressor superheat
040622 16:08:15
Info
Ackn.
Possible cause 2: Intermittent temperature rise due to abnormal
operating conditions.
Action:
1. Press the Ackn. button.
2. Wait and see.
The menu display shows:
Low pressure switch (LP)
Possible cause 1: Air in the heat transfer system.
Action:
1. Press the Ackn. button.
2. Check the expansion tank.
3. Fill with fluid if necessary.
4. Listen for air in the system. If air is heard constantly, contact your dealer.
Possible cause 2: The particle filter on the cold side is clogged.
Action:
1. Check the particle filter.
2. Clean the particle filter if necessary.
3. Press the Ackn. button.
Possible cause 3: Lack of refrigerant in the heat transfer circuit.
Action:
1. Press the Ackn. button.
2. Wait for the heat pump to start.
3. Check whether it bubbles continuously in the sight
glass.
4. If it bubbles continuously, contact your dealer.
Possible cause 4: The HTF pump has stopped or is set at too low
a speed.
Action:
1. Press the Ackn. button.
2. Check that the pump has not stopped or is set at
the wrong speed.
Possible cause 5: Ice formation in the heat exchanger due to a lack
of anti-freeze in the heat transfer circuit.
Action:
1. Contact your dealer.
Possible cause 6: Faulty expansion valve (the alarm appears in
time periods of 3-4 weeks).
Action:
1. Contact your dealer.
33
Alarm
(LP)
Low pressure switch
040622 16:08:15
Info
Ackn.
FOR THE USER
The menu display shows:
Compressor temperature T6 (GT6)
What to do if a fault occurs
FOR THE USER
High pressure switch (HP)
Possible cause 1: Air in the heating system.
Action:
1. Press the Ackn. button.
2. Check whether there is air in the radiators.
3. Fill the heating system and vent if necessary.
Possible cause 2: Not enough flow over the heat pump.
Action:
1. Press the Ackn. button.
2. Check that the heat carrier pump has not stopped.
3. Check that all the valves are open. The thermostat
valves accord. to clockeating systems should be
fully open and in floor heating systems at least half
of the coils should be fully open.
4. Possibly increase the speed of the heat carrier pump.
Possible cause 3: The particle filter on the hot side is clogged.
Action:
1. Press the Ackn. button.
2. Check the particle filter.
3. Clean the particle filter if necessary.
Alarm
(HP)
High press. switch
040622 16:08:15
Info
Ackn.
Note
Increase the speed of the heat
carrier pump:
Use a screwdriver or a coin to increase
the speed of the heat carrier pump.
Turn one step anti-clockwise.
Electric cassette (EK)
Possible cause 1: The electric cassette’s miniature circuit-breaker
has tripped.
Action:
1. Press the Ackn. button.
2. Reset the miniature circuit breaker button on the
heat pump (circuit breaker 3) by pushing up the
toggle switch.
3. Contact your dealer if the miniature circuit breaker
trips again.
Possible cause 2: The electric cassette’s overheat protection has
tripped.
Action:
1. Press the Ackn. button.
2. Reset the overheat protector (circuit breaker 4)
by pressing in the button on the electric cassette’s
protective casing. The circuit breaker is reset
when you hear a clicking sound.
3. Check that the particle filter on the hot side is clean.
34
Alarm
(EK)
Electrical cassette
(EE) 040622 16:08:15
Info
Ackn.
Note
The miniature circuit-breaker button
for the electric cassette can be found
under the heading Fuses and reset buttons on the heat pump.
The most frequent cause for the
overheat protection tripping is a poor
flow over the heat pump, which can be
due to air in the heat pump or that the
particle filter is clogged.
What to do if a fault occurs
The heat pump maintains all its settings in case of a power failure. When the
power returns the heat pump automatically starts up according to the previous
settings.
Possible cause:
Action:
Alarm
Power failure
040622 16:08:15
Info
Ackn.
One or two phases to the heat pump are down.
1. Check that the fuses in the house’s distribution box
have not blown.
2. Change the fuse if necessary. If you have miniature
circuit-breakers and these have tripped you reset them by
pushing up the toggle switch.
3. The heat pump automatically returns to the operating
mode once the fault has been rectified.
3-phase incorrect (3-phase)
Possible cause 1: One or two phases to the heat pump are down.
Action:
1. Check that the fuses in the house’s distribution box
have not blown.
2. Change the fuse if necessary. If you have miniature
circuit-breakers and these have tripped you reset them
by pushing up the toggle switch.
3. The heat pump automatically returns to the operating
mode once the fault has been rectified.
Possible cause 2: Phase sequence to the heat pump is incorrect.
(The alarm may only be rectified by an electrician.)
Action:
1. Press the Ackn. button.
2. Switch the phase sequence on the incoming supply.
The heat pump starts automatically once the phase
sequence has been switched.
Alarm
3-phase incorrect
040622 16:08:15
Info
Ackn.
Note
If the power does not return on all
phases at the same time during
external electrical work, there is a risk
that the Rego control unit gives a false
alarm for a phase sequence error.
High Heat transfer fluid delta T8/T9 (GT8/GT9)
The heat pump gives an alarm when the temperature difference between the
sensors T8 (GT8) and T9 (GT9) is too high.
Possible cause 1: Not enough flow over the heat pump.
Action:
1. Check that the heat carrier pump has not jammed.
2. Check that all the valves are open. The thermostat
valves accord. to clockeating systems should be fully
open and in floor heating systems at least half of the
coils should be fully open.
Possible cause 2: The particle filter on the hot side is clogged.
Action:
1. Clean the particle filter.
35
Alarm
GT8/GT9
High HTF delta
040622 16:08:15
Info
Ackn.
FOR THE USER
Power failure (3-phase)
What to do if a fault occurs
FOR THE USER
High return to the heat pump T9 (GT9)
There is a sensor T9 (GT9) in the heat pump, which for reasons of safety,
stops the compressor if the temperature of the return water from the
radiators becomes too high. The limit lies at approximately 58ºC.
Alarm
(GT9)
High return HP
040622 16:08:15
Info
Ackn.
Possible cause 1: The temperature setting is too high.
Action:
1. Lower the temperature setting (Temp. +/-).
Possible cause 2: The valves on the radiators or floor heating
system are closed.
Action:
1. Open all valves.
2. Press the Ackn. button.
Possible cause 3: The hot water temperature is set too high.
Action:
1. An alarm is given accord. to clockot water mode.
Contact the installer to adjust the hot water temperature.
Possible cause 4: The flow across the heat pump is greater than
the flow in the heating system.
(Only applies if a bypass is fitted.)
Action:
1. Reduce the speed of the heat carrier pump or
increase the speed of the main pump in the heating
system.
2. Contact your dealer.
Note
The heat pump starts automatically when
the temperature drops.
Lower the speed of the heat carrier
pump:
Use a screwdriver or a coin to lower the
speed of the heat carrier pump. Turn one
step clockwise. The lowest speed should
be avoided.
Heat transfer fluid out max T8 (GT8)
There is a sensor T8 (GT8) in the heat pump, which for reasons of safety,
stops the compressor if the temperature of the water going out to the
radiators becomes too high.
Possible cause 1: Not enough flow over the heat pump.
Action:
1. Check that the heat carrier pump has not jammed.
2. Check that all the valves are open. The thermostat
valves accord. to clockeating systems should be
fully open and in floor heating systems at least half
of the coils should be fully open.
Possible cause 2: The particle filter on the hot side is clogged.
Action:
1. Clean the particle filter.
36
Alarm
(GT8)
Heat tran. f out max
040622 16:08:15
Info
Ackn.
Note
The heat pump starts automatically
when the alarm is reset and the water
temperature has dropped to its normal
value.
What to do if a fault occurs
All sensors connected to the heat pump can give an alarm when defective. In the
example to the right it is sensor T1 (GT1), Return radiator, which has given an
alarm. All sensors give alarms in the same way. Read more about the sensors
under heading Read the temperatures on the heat pump.
Alarm
(GT1)
Sensor return rad.
040622 16:08:15
Info
Ackn.
Note
Possible cause 1: Temporar y error.
Action:
1. Wait and see.
Possible cause 2: Short circuit or broken sensor cable.
Action:
1. If you have an ohmmeter you can disconnect the
sensor and check the cable’s resistance. Compare with
the sensor table in the section Technical information.
Otherwise contact your dealer.
Switch off the power before checking
the resistance of the cable.
Possible cause 3: Defective sensor or incorrect connection.
Action:
1. Contact your dealer.
Note
HTF in under limit T10 (GT10) and HTF out under
limit T11 (GT11)
Possible cause 1: Temporar y low heat transfer fluid temperature.
Action:
1. Wait and see.
2. If the alarm returns, contact your dealer.
Possible cause 2: Too low flow on the cold side.
Action:
1. Check the particle filter.
2. Clean the filter if it is clogged.
Possible cause 3: The minimum heat transfer fluid temperature has
been set too low.
Action:
1. Wait and see.
2. If the alarm returns, contact your dealer.
In a groundwater system the cause may also be:
Possible cause 4: Clogged filter in the groundwater circuit.
Action:
1. Clean the filter.
Possible cause 5: The motor cut-out or a fuse on the pump in the
groundwater system has tripped.
Action:
1. Reset the motor cut-out or fuse.
Possible cause 6: Faulty pump in the groundwater circuit.
Action:
1. Contact your dealer.
37
The factory settings are 0°C and -2°C
respectively. If anti-freeze liquid is
used these values need to be changed.
Contact your installer
Alarm
(GT10)
Pump inlet too cold
040622 16:08:15
Info
Ackn.
Alarm
(GT11)
Pump outlet too cold
040622 16:08:15
Info
Ackn.
FOR THE USER
Sensor fault
What to do if a fault occurs
Anode error
Possible cause 1: Temporar y error.
Action:
1. When large amounts of hot water are used (e.g.
with a bath) the alarm may be given without there
being a fault. Contact your dealer at repeated
alarms. If the fault occurs at the weekend, you can
wait to the next working day before contacting
your dealer.
Possible cause 2: Faulty electric anode.
Action:
1. Contact your dealer.
38
Alarm
Anode error
040622 16:08:15
Return
Info
For the Installer
Installation of the heat pump should be performed by a qualified installer.
The For the Installer chapter includes a section suggesting how the heat
pump installer should install and commission the heat pump. The installation consists of a plumbing section and an electrical section. These provide
technical data such as measurements, wiring diagrams and installer menus.
Contents:
Important information to the installer
Checklist
What the shipment includes
Dimensions and plumbing connections
The heat pump and collector hose in general
Preparations before connection
Connecting the heat pump to the heating system
Connecting the heat pump to the power supply
External connections to the heat pump
Commissioning the heat pump
Hot water cylinder for Heat Pump
Technical information
Note
It is important that as the installer you also read through the For the User section
of the manual. Here you will find the information necessary to get a comprehensive understanding of the heat pump.
39
Important information to the installer / Checklist
Important information to the installer
This manual provides you with all the information necessary to install the heat
pump. The manual is divided into several sections. The order of these is based
on the recommended installation sequence. Use the supplied checklist during
installation.
Before installation remember:
Warning
For reasons of safety the main power
supply must be disconnected before
working on the heat pump.
Installation of the heat pump should be performed by a qualified installer.
If the heat pump needs to be taken downstairs it may be temporarily tilted with the compressor downwards. However,
never lay the heat pump down or transport it horizontally.
Before the heat pump is commissioned, the heat transfer systems, the hot water cylinder and the heat pump must be
filled and vented.
FOR THE INSTALLER
Check that pipe connections on the cold and hot sides are intact and have not shaken loose during transport.
The HTF pump should be running when the heat transfer system is vented.
The control unit measures the phase sequence and gives an alarm if the power supply has been connected incorrectly.
Wiring should be kept as short as possible to protect the system from downtime, for example during a thunderstorm.
Heat pump installation, energy drilling and collector installation must be carried out in accordance with applicable
regulations.
Checklist
Each heat pump installation is unique. However, the following checklist will give you a general description of how the
installation should be carried out.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Place the heat pump on a flat surface. Adjust the height using the rubber feet.
Check that the bore hole for the collector hose has been bored according to applicable regulations (responsibility of
the drilling company).
Fit the incoming and outgoing pipes for the heating and heat transfer fluid circuits as well as the expansion tank.
Fit the particle filters and valves.
Make the connections for any external additional heat.
Connect the pump to the heating system (plumbing). Follow the instructions for the pump in question.
Install the outdoor sensor and a room sensor if used.
Fill and vent the heating and heat transfer systems before commissioning.
Connect the heat pump to the electrical system. Use the appropriate electrical diagram.
Connect the external switch as well as additional heat if used, and an earth-fault breaker.
Connect a general alarm, external controls and load monitor if used.
Commission the heat pump by making all the necessary settings on the control panel.
Check the heat pump after commissioning. Top up the heat transfer fluid if required.
40
What the shipment includes
What the shipment includes
Rubber feet
Quantity: 4
Particle filter with screen
Quantity: 2 (LWM model)
Quantity: 1 (LW model)
Outdoor sensor T2 (GT2) with cable
Quantity: 1
Circlip pliers
Quantity: 1
Room sensor T5 (GT5):
Quantity: 1
Drain plug
Quantity: 1
Return sensor T1 (GT1)
Quantity: 1
Cable: 4 m
Manual
Quantity: 1
Safety valve
Quantity: 1
41
FOR THE INSTALLER
The following components are included in the delivery of the heat pump:
Dimensions and connections
Dimensions and plumbing connections
The following illustrations show the dimensions of the heat pump and plumbing connections. All measurements are stated
in millimetres.
LWM model
596
79
240
356
471
538
569
517
506
5
1
6
1800
471
345
3
Electrical connections
FOR THE INSTALLER
229
1 Return radiator
218
183
4
165
123
69
2 Flow radiator
3 Cold water in
4 Hot water out
5 HTF (coll) in
2
6 HTF (coll) out
398
464
554
596
LW model
105
310
365
455
505
569
5
482
447
1520
1
387
Electrical connections
321
3
6
2
266
1 Return radiator
2 Flow radiator
4
211
3 Return HWH
4 Riser HWH
5 HTF (coll) in
6 HTF (coll) in
42
The heat pump and collector hose in general
The heat pump and collector hose in general
Transporting the heat pump
The heat pump should always be transported and stored in an upright position. Otherwise the suspension fittings inside
the compressor can be damaged. If the heat pump must be tilted during entry to the installation site, this should be done
for as short a time as possible. The outer cover plates should be removed to avoid damage, if the heat pump is moved
without using the supplied pallet.
The heat pump must not be stored at temperatures below -10ºC.
Positioning the heat pump
It is important that the heat pump stands on a flat surface as it contains sensitive parts. Adjust the rubber feet so the heat
pump does not lean.
The temperature surrounding the heat pump must be between 0ºC and 35ºC.
Make sure there is a floor drain in the room where the heat pump is installed. The floor drain ensures any water is easily
transported away if leakage should occur.
Maximum working temperatures
The heat pump can work at a maximum return water temperature of approximately 57ºC. If the temperature rises above
this value the heat pump will stop for reasons of safety.
The maximum outgoing temperature to the heating system is around 65°C. However, even higher temperature can be
attained with the help of the electric cassette.
Minimum working temperatures
The heat pump is from factory preset to minimum temperature of heat transfer fluid (collector) ±0°C inlet and -2°C outlet.
If anti-freeze liquid with a freezing point of -15°C is used, the heat pump can operate at outdoor temperatures down to -5°C.
The preset values must be changed during commissioning. At this level the heating factor is (depending on model) appr.
3.3 - 3.5 at 35°C heat transfer fluid out and 2.4 - 2.6 at 50°C heat transfer fluid out.
Fit the particle filter
The task of the particle filter is to filter out dirt before it can enter the heat pump. Accordingly, the supplied particle filters
should always be fitted on the incoming pipes on both the hot and cold sides. The filters should be fitted as close to the
heat pump as possible and placed horizontally.
Two particle filters are supplied with the LWM model. These are to be fitted on the outside of the heat pump. On the LW
model the particle filter for the hot side is already fitted inside the heat pump. The supplied filter is to be fitted on the cold
side, outside of the heat pump.
43
FOR THE INSTALLER
The installer should take sound propagation into consideration when positioning the heat pump.
The heat pump and collector hose in general
Collector hose
Note
The task of the collector hose is to convey the heat transfer fluid through
the ground or lake to fetch a few degrees of heat. The hose consists of a
thin-walled plastic hose of the type PEM 40 x 2.4 PN 6.3.
The depth and length of the collector
hose are described in detail in the configuration program VPW2100.
It is important when the collector hose is placed in the ground that air
pockets are avoided.
Installation and refilling around the collector hose
Installation and filling the soil around the collector hose should follow
applicable material and working descriptions and regulations.
It is important that the filling material does not contain stones or other
sharp objects that can damage the collector hose. We also recommend that
the hose is pressure tested before starting to refill. If the hose should leak
it is easier to fix the problem.
FOR THE INSTALLER
When cutting the collector hose it is important that no dirt or gravel enters
the system. Dirt and gravel can cause a blockage in the heat pump.
Minimum permitted bending diameter
Minimum permitted bending diameter is 1 metre. If sharper bends
are required an elbow connector must be used. If the collector hose is
damaged by too sharp a bend, you can repair the damage using a straight
coupling.
Maximum length of the collector hose
The maximum length of the collector hose is based on the heat transfer
fluid pressure setting. We recommend a heat transfer fluid consisting
of max 29 per cent ethanol by volume and water. Ethanol has good environmental and technical properties even at low temperatures and should
therefore be used instead of other heat transfer fluids.
Note
The maximum collector hose lengths
for heat pump models are provided in
the table.
Maximum length of
collector hose with a
single circuit (m)
PEM 40x2.4 PN 6.3.
Collector hose with 2 circuits
in parallel: Maximum length
per circuit (m)
PEM 40x2.4 PN 6.3.
EHP 7 LW/M
500
1000
EHP 9 LW/M
400
800
EHP 11 LW/M
400
800
EHP 14 LW
-
800
EHP 17 LW
-
800
Heat pump model
44
In situations where the length of the
collector hose needs to exceed the
permitted value, you can connect
the hoses in parallel. As an example
the table shows that for WPS 110 the
maximum hose length is 400 metres.
For two hoses connected in parallel
the maximum length is 800 metres
per hose, i.e. in total 1600 metres with
a parallel connection.
The heat pump and collector hose in general
Outline drawings for the collector hose in the ground and through a wall
The drawings below show how to run the collector hose in the ground and
through a wall. The soil filling around the hose must not contain stones. If
the hose is ploughed down, you must use equipment that guarantees the
hose is laid at the right depth.
Collector in the ground
200 mm
C/C 800-1000 mm
Filling of stone free soil approximately
100 mm around the collector hose.
Example of the collector through the wall
(from the side)
Example of the collector through the wall
(cross section)
House wall
Soil or rock collector
Insulation from the wall
Note
Connecting the collector hose to the heat pump
It is important that the collector hose has been pressure tested before it is
connected to the heat pump. Pressure testing is carried out by the boring
company or excavating company and determines whether the hose is in
one piece and works as it should. A ground collector is usually pressurised
during the laying process.
A further leakage test must be performed on the collector hose before
commissioning the heat pump.
45
Non-inflammable pipe material must
be used when routing the pipes
indoors. When plastic hose is used
indoors this must be protected by 40
mm fire resistant, mineral wool sheet,
EI30.
FOR THE INSTALLER
Collector, PEM 40 x 2.4 PN 6.3.
C/C 800-1000 mm
The heat pump and collector hose in general
You can connect the collector hose to the heat pump with one or more circuits. In a multi-circuit solution, the collector
hoses are connected in parallel as illustrated below. The parallel hoses are connected to two distributors. Each coil should
have a shutoff valve and a control valve. The control valve is adjusted so that the flow rate is the same in the coils.
After the distributor and the valves, the coils are connected to a collecting pipe. A filling unit, particle filter and an
expansion tank are connected to the collecting pipe. A safety valve is connected to the outgoing pipe. The safety valve leads
off any overpressure.
One circuit at a time is filled with heat transfer fluid. Keep the valves closed in the other loops during the process. Read
more about filling under the headings Connecting the heat pump to the heating system /Filling water in the heating
system and Filling the heat transfer fluid in the collector hose.
Filling unit
Expansion tank
FOR THE INSTALLER
Filter
Ground, lake or rock
collector
Heat pump
Single circuit solution
Control valve
Filling unit
Distributor
Expansion tank
Filter
Ground, lake or rock
collector
Heat pump
Multi-circuit solution
46
Preparations before connection
Preparations before connection
In some situations the heat pump may need extra preparations before it is
commissioned. Such preparations may be:
Moving the heat transfer fluid pipe for side entry
Supplement the heat pump with a ground water system
Moving the heat transfer fluid pipe for
side entry
FOR THE INSTALLER
When the heat pump is supplied the heat transfer fluid side is assembled
for a top installation. This means the pipes for heat transfer fluid in and
heat transfer fluid out run through the top of the heat pump.
If the heat pump is positioned in the house so it is difficult to install the heat
transfer fluid pipes on the heat pump from above, they can be fitted from the
side (side installation). Both the right- and left-hand sides are prepared for
side installation. The following pages describe side installation.
Side installation should be done before the heat pump is positioned in its
final installation location.
The heat transfer fluid pipes are
fitted for top installation when the
heat pump is delivered.
47
Preparations before connection
Side installation on the right-hand side
Proceed as follows to switch the heat transfer fluid pipes from top
installation to side installation on the right:
1. Remove the blanking washers (figure 1).
Figure 1
2. Dismantle the sensor and both heat transfer fluid pipes. The
pipes run to the top of the top plate. Heat transfer fluid in
is connected by a connector on top of the HTF pump. Heat
transfer fluid out is connected to the bottom of the heat
exchanger (figure 2).
HTF (coll) out
Sensor
HTF (coll) in
Note:The sensor fitted to heat transfer fluid out must be
dismantled first (figure 2).
Figure 2
FOR THE INSTALLER
3. Remove the Armaflex insulation from the heat transfer fluid
pipes so they are completely clean (figure 3).
4. Cut the heat transfer fluid pipes so they are suitable for righthand side installation (figures 4 and 5). Follow the measurements given in figures 6 and 7.
Figure 3
5. Solder on a solder elbow and a straight piece of copper tube.
You can use the piece left over from cutting the heat transfer
fluid out pipe as the straight piece.
Note: Do not use compression ring couplings to secure the solder
elbow on the copper pipe. Compression ring couplings require
more space and space is limited in the heat pump.
Figure 4 Heat transfer
fluid in
6. Refit the heat transfer fluid pipes on the heat pump. See the
result in figure 8.
Figure 6
Figure 7
160 mm
7. Assemble the sensor on the heat transfer fluid in pipe. Use
aluminium tape and cable ties.
Solder elbow
225 mm
Straight
piece
140 mm
8. Slide on Armaflex insulation on both pipes and secure
using Armaflex tape. Make sure you cover both pipes well,
otherwise there is a risk of condensation.
Figure 8
48
Figure 5 Heat transfer fluid out
Preparations before connection
Side installation on the left-hand side
Proceed as follows to switch the heat transfer fluid pipes from top
installation to side installation on the left:
1. Switch the heat pump’s right- and left-hand side covers.
Figure 1
2. Remove the blanking washers (figure 1).
HTF (coll) out
3. Dismantle the sensor and both heat transfer fluid pipes. The
pipes run to the top of the top plate. Heat transfer fluid in
is connected by a connector on top of the HTF pump. Heat
transfer fluid out is connected to the bottom of the heat
exchanger (figure 2).
Note:The sensor fitted to heat transfer fluid out must be
dismantled first (figure 2).
Sensor
HTF (coll) in
Figure 2
FOR THE INSTALLER
4. Remove the Armaflex insulation from the heat transfer fluid
pipes so they are completely clean (figure 3).
Figure 3
5. Cut the heat transfer fluid in as in figure 4. Follow the measurements in figure 6. Solder on a solder elbow and a piece of
straight copper tube. Use the material left over from cutting.
6. Cut the heat transfer fluid out as in figure 5. Follow the measurements in figure 7. Solder on a solder elbow and a piece of
straight copper tube. Use the material left over from cutting.
Note: Do not use compression ring couplings to secure the
solder elbow on the copper pipe. Compression ring couplings
require more space and space is limited in the heat pump.
Figure 4 Heat transfer fluid in
7. Refit the heat transfer fluid pipes on the heat pump. See the
result in figures 8 and 9.
Figure 5 Heat transfer fluid out
Straight piece
Solder
elbow
Straight piece Solder joint
8. Assemble the sensor on the heat transfer fluid in pipe. Use
aluminium tape and cable ties.
530 mm
Figure 6
Figure 7
560 mm
9. Slide on Armaflex insulation on both pipes and secure
using Armaflex tape. Make sure you cover both pipes well,
otherwise there is a risk of condensation.
Figure 8 View from the left
49
Figure 9 View from the right
225 mm
Preparations before connection
Supplementing the heat pump with a
groundwater system
Note
The intermediate heat exchange
should be connected against the flow.
In addition, the pipe from the groundwater well is connected to the bottom
of the intermediate heat exchanger so
that the flow goes upwards.
If the heat pump is installed for groundwater instead of rock, soil or lake, it
must be supplemented with an intermediate heat exchanger. The intermediate heat exchanger protects the heat pump from contamination, clogging
and freezing.
A groundwater pump with non-return valve is installed at the bottom of
the bore hole. The pump is used to pump the groundwater from the water
source to the intermediate heat exchanger. Heat is transferred to the
heat transfer fluid in the intermediate heat exchanger. The water is then
pumped to a recharge well. The intermediate exchanger is installed in the
boiler room or the like.
FOR THE INSTALLER
A filter has to be used in the water circuit. A similar filter type as in the
brine circuit is recommended. A large filter is preferable if there is a risk
for much contamination.
The circuit to the heat pump is installed in the same way as described
earlier i.e. with filling unit, expansion tank and safety valve. The circuit
should also be protected against freezing down to -15ºC.
To the heating system
Filling unit
Intermediate
heat exchanger
Exp.
Filter
Safety valve
Groundwater
Recharge well
50
Connecting the heat pump to the heating system
Connection to groundwater system: electrical
connection
1. Connect the ground water pump to the mains via a motor cut-out and a
contactor. The control to the contactor (CK3) uses 230 V, which is taken
from the terminals L and N (P3) in the heat pump.
2. Connect the auxiliary contact for the motor cut-out MB3 in series with
the alarm input MB2. This method starts and stops the groundwater
pump with the heat pump’s HTF pump. If the motor cut-out MB3 trips,
the heat pump stops and the alarm for the HTF pump is displayed on the
menu display.
Warning
If a single phase pump is used, it
should always be connected with
a contactor. It must never be connected to the P3 output on the heat
pump as this can damage the control
unit.
Contactor
Terminal card in
the heat pump
Groundwater pump
G8 (P8)
Note
Alarm input
There is a built-in motor cut-out in
the pump on the 11-17 kW models.
Models 6-9 kW have a strap fitted
between L and MB2 on the terminal
card.
HTF pump G3 (P3)
Connecting the heat pump to the heating system
It is important that all previously mentioned preparations have been carried out
before the heat pump is connected to the heating system. Also ensure the pipe
system has been well flushed before it is connected to the heat pump. Flushing
protects the heat pump from contamination.
The heating system must be diffusion-proof. Oxygen must not enter the system.
The heat pump is only intended to work in oxygen free systems with so-called
“dead water”. When oxygen enters the system this causes corrosion in the heat
pump and clogging of the filter on the heating system side. An intermediate heat
exchanger is necessary in systems with oxygen penetration/diffusion to protect
the heat pump.
51
Note
Only qualified installers may carry out
the installation. The installer should
observe applicable regulations and
recommendations from the supplier.
FOR THE INSTALLER
Motor cut-out
Connecting the heat pump to the heating system
Connecting to the heating system without a bypass:
The heat pump can be connected to the heating system without a bypass, as the circulation in the heat pump and the
heating system is managed by the integrated pump G2 (P2). This also means the main pump G1 (P1) is omitted. An
absolute prerequisite for this type of connection is that a minimum flow of at least 70% of the nominal flow (see the table
below) can be maintained throughout the year. The thermostat valves in the heating system should be fully open and in a
floor heating system, it is necessary for at least half of the coils to be fully open.
The control unit gives an alarm when the temperature increase exceeds 13ºC in the heating system. If the heating system
is designed so that a minimum flow cannot be guaranteed, the heat pump should be connected using a bypass and an
external main pump G1 (P1).
Hot water function:
Hot water charging is started by the hot water sensor T3 (GT3), and is stopped by the return sensor T9 (GT9).
Heat carrier pump
Pressure height (H)
FOR THE INSTALLER
The circulation pump G2 (P2) is a Wilo Star 25/6-130 accord. to clockeat pumps from 6 to 11 kW.
The circulation pump G2 (P2) is a Wilo TOP-S 25/7.5 EM accord. to clockeat pumps from 14 to 17 kW.
Flow (Q)
Maximum external pressure drop in the heating system
The maximum external pressure drop and the minimum flow that the integrated circulation pump can handle is
presented in the table. If the minimum flow cannot be guaranteed a bypass and an external main pump G1 (P1)
should be installed.
Heat pump model
Nominal flow
Minimum flow
Max external pressure drop
EHP 7 LW/M
0.25 l/s
0.18 l/s
36.0 kPa
EHP 9 LW/M
0.31 l/s
0.22 l/s
34.0 kPa
EHP 11 LW/M
0.38 l/s
0.26 l/s
32.0 kPa
EHP 14 LW
0.50 l/s
0.35 l/s
54.0 kPa
EHP 17 LW
0.57 l/s
0.40 l/s
51.0 kPa
52
Connecting the heat pump to the heating system
Connect heat pump LWM model to the heating system
Application: The principle is based on floating condensing in the heat pump (curve control) and additional heat from an
electric cassette. The built-in control unit controls the heat pump using the outdoor sensor T2 (GT2) and the return sensor
T1 (GT1) according to the outdoor compensated control curve. When the heat pump is unable to meet the heating requirements, the electric cassette starts automatically and together with the heat pump provides the required temperature. The
heating of hot water is given priority over the heating of the heating water. Hot water heating is controlled by the sensor T3
(GT3), which is located in the hot water cylinder. When the water in the cylinder reaches the required temperature, heat is
once more supplied to the heating system.
Connecting the sensors: External sensors T1 (GT1) and T2 (GT2) must always be connected. The sensor T5 (GT5) is
connected when the heat pump is to be influenced by a room sensor.
FOR THE INSTALLER
An absolute prerequisite for this type of connection is that a minimum flow of at least 70% of the nominal flow can be
maintained throughout the year.
Heating system
C11:
F21:
F22:
F31:
G2 (P2):
G3 (P3):
V21:
V31:
V40:
W40:
Symbols according to ISO/FDIS 14617.
Letter codes according to IEC 61346-2.
This is a principal drawing.
53
Expansion tank
Safety valve
Safety valve
Safety valve
Heat carrier pump
Heat transfer fluid pump
Filter Heating system
Filter Heat transfer fluid in
Hot water
Cold water
Connecting the heat pump to the heating system
Connect heat pump LW model to the heating system
Application: The principle is based on floating condensing in the heat pump (curve control) and additional heat from an
electric cassette. The built-in control unit controls the heat pump using the outdoor sensor T2 (GT2) and the return sensor
T1 (GT1) according to the outdoor compensated control curve. When the heat pump is unable to meet the heating requirements, the electric cassette starts automatically and together with the heat pump provides the required temperature. The
heating of hot water is given priority over the heating of the heating water. Hot water heating is controlled by the sensor T3
(GT3), which is located in the hot water cylinder. When the water in the cylinder reaches the required temperature, heat is
once more supplied to the heating system.
Connecting the sensors: External sensors T1 (GT1) and T2 (GT2) must always be connected. The sensor T5 (GT5) is
connected when the heat pump is to be influenced by a room sensor.
FOR THE INSTALLER
An absolute prerequisite for this type of connection is that a minimum flow of at least 70% of the nominal flow can be
maintained throughout the year.
Heating system
C11:
E42:
F21:
F22:
F31:
G2 (P2):
G3 (P3):
V21:
V31:
V40:
W40:
Symbols according to ISO/FDIS 14617.
Letter codes according to IEC 61346-2.
This is a principal drawing.
54
Expansion tank
Hot water heater
Safety valve
Safety valve
Safety valve
Heat carrier pump
Heat transfer fluid pump
Filter Heating system
Filter Heat transfer fluid in
Hot water
Cold water
Connecting the heat pump to the heating system
LWM model: individual temperature control in each room, increasing
volume of internal water and bypass
This solution is viable if you want to control the temperature of each room, for example if you use thermostat valves on
the radiators in each room. The function of the heat pump is to maintain a temperature in accordance with the heat curve
(depending on outdoor temperature) in the accumulator. The heating water is then distributed from the accumulator to the
heating system. This solution also allows the overall volume of the installation to be increased if the volume of the heating
system is inadequate, for example with one or two fan-assisted radiators.
* Mixed heating system
There is a possibility to control a second
heating system with a mixing valve. This
is recommended when a combination of
radiators and a floor heating system is used.
C11:
C21:
E22 :
E42:
F21:
F22:
G1 (P1):
G2 (P2):
G4 (P4):
Q41:
V21:
V40:
W40:
Expansion tank
storage tank
water heater with electric cassette
tank with outer shell
safety valve
safety valve
Radiator pump
Heat carrier pump
Pump for mixed heating system
mixer valve
Filter Heating system
Hot water
Cold water »
Symbols according to ISO/FDIS 14617.
Letter codes according to IEC 61346-2.
This is a principal drawing.
55
FOR THE INSTALLER
*
Connecting the heat pump to the heating system
LW model: individual temperature control in each room, increasing
volume of internal water and bypass
This solution is viable if you want to control the temperature of each room, for example if you use thermostat valves on
the radiators in each room. The function of the heat pump is to maintain a temperature in accordance with the heat curve
(depending on outdoor temperature) in the accumulator. The heating water is then distributed from the accumulator to the
heating system. This solution also allows the overall volume of the installation to be increased if the volume of the heating
system is inadequate, for example with one or two fan-assisted radiators.
* Mixed heating system
There is a possibility to control a second
heating system with a mixing valve. This
is recommended when a combination of
radiators and a floor heating system is used.
FOR THE INSTALLER
*
C11:
C21:
E22 :
E42:
F21:
G1 (P1):
G2 (P2):
G4 (P4):
Q41:
V21:
V40:
W40:
56
Expansion tank
storage tank
water heater with electric cassette
tank with outer shell
safety valve
radiator pump
heat carrier pump
Pump for mixed heating system
mixer valve
filter heating system
hot water
cold water »
Connecting the heat pump to the heating system
LWM model: Increasing volume of internal water without bypass
FOR THE INSTALLER
This solution increases the overall volume of the installation if the volume of the heating system is inadequate, for example
with one or two fan-assisted radiators.
C11:
C21:
E22 :
E42:
F21:
F22:
G2 (P2):
V21:
V40:
W40:
Expansion tank
storage tank
water heater with electric cassette
tank with outer shell
safety valve
safety valve
Heat carrier pump
Filter Heating system
Hot water
Cold water »
Symbols according to ISO/FDIS 14617.
Letter codes according to IEC 61346-2.
This is a principal drawing.
57
Connecting the heat pump to the heating system
LW model: Increasing volume of internal water without bypass
FOR THE INSTALLER
This solution increases the overall volume of the installation if the volume of the heating system is inadequate, for example
with one or two fan-assisted radiators.
C11:
C21:
E22 :
E42:
F21:
G2 (P2):
V21:
V40:
W40:
58
Expansion tank
storage tank
water heater with electric cassette
tank with outer shell
safety valve
heat carrier pump
filter heating system
hot water
cold water »
Connecting the heat pump to the heating system
Filling water in the heating system
This is what to do:
1. Open and close the tap between the cold water system and the heating
system in short time intervals.
2. Read the pressure on the pressure gauge.
3. Vent the system and refill to the correct pressure.
The collector hose is filled with heat transfer fluid to be able to collect heat
from the ground. The fluid is a mixture of water and anti-freeze. It should
have a freezing point of approximately -15ºC.
Proceed as follows to fill the collector hose with heat transfer fluid:
See the illustration on the next page.
1. Connect two hoses (1 inch in diameter) to both filling valves 1 and 2.
One of the hoses should have a submerged pump connected at the
other end. Pump submersible with a minimum delivery pressure of 450
kPa. Minimum flow: 4 m³/h, type Wilo-Sub TWU 5-SE. The submerged
pump should be fitted with a particle filter.
2. Place the hose and submerged pump in a barrel that holds 100 litres.
3. Fill the barrel with heat transfer fluid. The relation between water and
heat transfer fluid can be found in the tables 1 and 2. Fill the water
before anti-freeze liquid. Before starting up the pump, mix the antifreeze liquid in the tank to ensure a uniform mix.
4. Open valves 1 and 2 and close valve 3.
Repeat points 5-8 for each circuit. The other circuits must be closed.
5. Start the submerged pump. The circuit is automatically filled with heat
transfer fluid.
6. When the fluid level has dropped to 50 per cent in the barrel, stop the
submerged pump and fill the barrel with more anti-freeze mixture.
59
Note
The first litres from the return pipe
are often contaminated. Therefore
collect these litres in a separate tank.
FOR THE INSTALLER
Filling the heat transfer fluid in the collector
hose
Connecting the heat pump to the heating system
7. When the system is full and air no longer comes from the return pipe
run the system for at least a further 30 minutes. You can also start
the heat transfer fluid pump to speed up the air venting. Enter manual
operation under menu 5.3 and start the pump G3 (P3). See Commissioning the heat pump/Testing the heat pump manually.
8. When venting is complete open valve 3, shut valve 2, and shortly after
shut also valve 1. Disconnect the hoses and the heat transfer fluid side
is ready for operation.
Note
FOR THE INSTALLER
It is an advantage if an overpressure
is created in the heat transfer fluid
circuit. An underpressure damages the
expansion tank and the collector hose.
Expansion tank
Safety valve
Manual venting valve
3
2
1
Particle
filter
60
Connecting the heat pump to the heating system
Table 1: Mixing ratio in litres/metre
40/35Hose type: 40/35
40/35Hose type: 32/28
Hose type: 20/17
Water (l)
Anti-freeze
(l)
Water (l)
Anti-freeze
(l)
Water (l)
Anti-freeze (l)
Bioethanol
0,71
0,29
0,42
0,18
0,16
0,07
Propylene/
ethylene glycol
0,65
0,35
0,39
0,21
0,15
0,08
Anti-freeze type
Example:
A 200 metres of hose type 40/35 with anti-freeze gives
200 x 0.29 litres anti-freeze/ metre = 58 litres of anti-freeze and
200 x 0.71 litres of water/ metre = 142 litres of water.
Bioethanol / Water
Propylene/ethylene glycol / Water
25 % / 75 %
35 % / 65 %
61
FOR THE INSTALLER
Table 2: Mixing ratio in per cent by weight
Connecting the heat pump to the power supply
Connecting the heat pump to
the power supply
Make sure the electricity has been switched off before connecting the heat
pump to the mains. Check that cables and printed circuit cards are intact.
High and low current cables should be routed separately in order
to avoid interference on the sensors.Wiring diagram is supplied
with the heat pump.
The electrical installation may only be
performed by a qualified electrician.
For reasons of safety the main power
supply must be disconnected before
working on the heat pump.
A description of external connections is given in this section.
Examples of external connections include room and outdoor sensors and
mixing valves.
FOR THE INSTALLER
Warning
The electric connection as well as the material used to make this connection must comply with existing standards and in particular standard NF
C15-100.
The heat pump electrical supply must be protected with a D curve earth
leakage circuit breaker. Wiring must be of the H07RNF type. Supply must
be of the P+N+T type 230 V single-phase and 3P+N+T 400 V three phase.
62
Connecting the heat pump to the power supply
External connections to the heat pump
These are the external connections that must be made for the heat pump:
Power supply 3-phase: The power supply is connected to terminals L1, L2, L3, N and PE. In
the event of a possible phase sequence fault the heat pump will trip the alarm 3-phase incorrect.
See more information in the section What to do if a fault occurs.
Power supply 1-phase: The power supply is connected to terminals L, N, and PE.
Mixing valve on the heating circuit: If a second heat curve with a mixing valve is to be used,
the mixing valve is connected to terminal block SV1.
External main pump in the heating system G1 (P1): The external main pump must be
connected to the terminal card in those cases a bypass is required. The pump is connected to
terminal P1.
Return sensor radiator T1 (GT1): Must always be connected. Connect to terminal GT1.
Hot water sensor T3 (GT3): Is connected if the heat pump is to produce hot water. Connect
to terminal block GT3 X on the terminal card. On the LW model this sensor is already
connected on delivery.
Mixing valve sensor T4 (GT4): Is connected when a mixing valve for a second heat curve is
to be used. Connect to terminal GT4.
Terminal card
for external
connections
Terminal card
230 V
Alarm lamp, room sensor
63
G1 (P1)
Mixing
valve
Room sensor
Mixing valve
Hot water
Outdoor sensor
Return radiator
Room sensor T5 (GT5): Is connected if room sensor influence is required.
FOR THE INSTALLER
Outdoor sensor T2 (GT2): Must always be connected. Connect to terminal GT2.
Connecting the heat pump to the power supply
Connecting the general alarm, external
input and load monitor
General alarm
The general alarm is activated irrespective of which alarm has tripped.
When a general alarm is required on the heat pump, it is connected
according to the diagram opposite. The contact for the general alarm
output is potential free (no current) and it closes at a general alarm.
Connect max 24 V and 100 mA on the contact.
Terminal
card for
external
connections
FOR THE INSTALLER
External input
The heat pump includes prepared functions to permit the heating to be
controlled externally, for example, from a telephone. The input to the heat
pump can be programmed for different functions on the control unit. These
functions are available from menu 1.13 (Remote control temperature) and
menu 5.7 (Select external controls).
The input must be short circuited to activate the function. Note that the
contact must be potential free.
Load monitor
The load monitor has the task of disconnecting the additional heat in the
event of a too high load on the house’s main fuse. Connect the load monitor
to the external output according to the heading External input above.
Select function 3 in the menu display 5.7 (Select external controls). When
the external input has been short circuited the additional heat is disconnected. The heat pump is not affected.
Note: It is not possible to utilise the other functions in menus 1.13 and 5.7 if
you connect a load monitor.
64
Terminal
card for
external
connections
Commissioning the heat pump
Installer and service menu (I/S)
As the installer you have your own section of menus for settings, e.g. for
commissioning. These are accessed from the control panel by holding
down the menu button for approximately ten seconds.
The menu displays are divided into lines and each display has a number to
make it easy to find. If there is no activity for 30 minutes the menu display
automatically returns to Customer level 1.
Warning
The Installer and service menu (I/S)
is only for installers. Under no circumstances may the user access this level.
The Installer level also includes Customer levels 1 and 2.
How to use the control panel
Here follows an example of how to use the control panel. The example shows how
you move to menu display 5.13 and confirm the external sensors. You will also find
more information about the control panel under the heading Control Panel in the
User section.
Reg 637
I/S
040622 16:08:15 Tu
temp. Info
Menu
(10 sec)
2. The menu display Indoor temperature settings (menu 1) is shown.
Main menu
Indoor temperature
settings
1
Return
Select
3. Turn the menu dial clockwise (to the right) until you access the menu
Commiss./Service for installer (menu 5). Now press the Select button.
Main menu
Commiss./Service
for installers
5
Return
Select
4. Turn the menu dial clockwise until you reach the menu Connected extra sensor
in op. (menu 5.13). Now press the Select button.
Commiss./Service
Connected extra
sensor in op
5.13
Return
Select
5. The menu display Extra sensor(s) is shown. Confirm the extra sensors that you
have connected by pressing the Confirm button.
Extra sensor(s)
GT4
GT5
Return
Confirm
6. The text Confirming… is briefly shown in the menu display. This means your
setting is being registered in the heat pump.
Extra sensor(s)
Confirming…
7. When the setting has been registered the previous menu display is shown.
Press the Return button twice to return to the main menu.
Extra sensor(s)
Return
65
GT4
GT5
Confirm
FOR THE INSTALLER
1. Press the menu button for approximately ten seconds until Access = SERVICE
is shown on the menu display. Now press the Menu button.
Commissioning the heat pump
Commissioning the heat pump
The heat distribution and heat transfer fluid circuits should be filled and
fully vented before commissioning. Also check that there are no leaks.
As many radiators as possible should be fully open when connecting to an
existing water system. When connecting to a floor heating system at least
half of all the floor coils should be open. When connecting a fan-assisted
radiator system the fans are started first and then the taps on the fanassisted radiators are opened fully.
Note
Further important information on
control unit can be found in the user
section.
Therefore read the entire manual
before commissioning is started.
Start the heat pump
1.
Connect mains to the heat pump and press the ON/OFF switch on the
control panel.
FOR THE INSTALLER
3-phase heat pumps: The control unit automatically measures the phase
sequence so the compressor does not operate in the wrong direction. If the
phase sequence is wrong the alarm 3-phase incorrect will trip. Read more
about the alarm under the heading What to do if a fault occurs.. Disconnect
the mains power to the heat pump and switch the phases manually.
2.
Activate the Installer/Service menu by pressing the Menu button until the
text Access = SERVICE is shown on the menu display.
Press the power switch ON/OFF
Reg 637
I/S
040622 16:08:15 Tu
temp. Info
Menu
3.
Temporarily adjust temp. incr. / decr. +/- to maximum value. To avoid
having to wait for the heat pump restart timer you can go to the menu Fast
restart of heat pump (menu 5.6) and quickly restart the heat pump. If the
heat pump does not start, press the Info button to see if a heating demand
exists.
4.
Check the sight glass inside the heat pump during start up. Bubbles may
appear in the sight glass for a few minutes during start up. The bubbles
should then stop. Bubbles present when the heat pump is running are a
fault symptom. They are probably due to insufficient refrigerant. Read more
about the fault symptom under the heading What to do if a fault occurs.
5.
Make the necessary settings on the control panel.
Commiss./Service
Fast restart
of heat pump
5.6
Return
Select
Check the sight glass
a. Confirm connected external sensors. If T3 (GT3), T4 (GT4) or T5 (GT5)
have been connected, you must confirm these so the control unit knows
they are installed. The displays presented by the sensors are only shown if
the sensors have been confirmed.
Commiss./Service
Connected extra
sensor in op
5.13
Return
Select
b. Set the maximal output to be used by the electric cassette. Choose
between 1/3, 2/3 and 3/3. It is important that the electrical installation is
adapted to handle the maximum electrical output. On delivery the control
unit is set to 2/3. For more information about this see section Technical
information.
Commiss./Service
Select conn capacity
electrical cass. 5.2
Return
Select
66
Commissioning the heat pump
Menu displays you might need to adjust or check
Temperature settings
Set the neutral zone for the mixing valve in a heating system with two heat curves.
In the neutral zone the mixing valve receives no signal to open or close. Only
applies when the sensor T4 (GT4) is connected.
Set the maximum temperature in the mixing valve circuit. You can, for example, set
a maximum temperature for the floor heating system. On delivery of the heat pump
the value is 60ºC. Only applies when the sensor T4 (GT4) is connected.
The heat pump is from factory preset to minimum temperature of heat transfer
fluid (collector) ±0°C inlet and -2°C outlet. If anti-freeze liquid with a freezing point
of -15°C is used, the heat pump can operate at outdoor temperatures down to -5°C.
The preset values must be changed during commissioning. The settings in menus
9.4 and 9.5 must be changed to -7°C and -10°C respectively.
Temperature settings
Heat curve
hysteresis
1.4
Return
Select
Temperature settings
Mixing valve curve
Neutral zone
1.8
Return
Select
Temperature settings
Mixing valve curve
max at GT4
1.9
Return
Select
Hot water settings
Set the temperature in the hot water heater’s outer shell. Note that the setting does
not apply to the temperature inside the hot water cylinder. The factory setting is
52ºC, but this temperature can be increased to max 55ºC if necessary. Only applies
when the sensor T3 (GT3) is connected.
Set the hysteresis for the hot water temperature. The function measures below
and above the value set in menu 2.3. Only applies when the sensor T3 (GT3) is
connected. Less than 4ºC should be avoided.
Hot water
Setting of
temperature.
Return
Select
Hot water
Setting of
DHW hysteresis
2.4
Return
Select
Clock setting of additional heat
You can set the control unit so that the additional heat is fully blocked during
certain periods of the day. Read more under the heading Extra functions (Customer
level 2)/Timer control about how to set the control unit.
Commiss./Ser vice
Make a check of all the functions before you commission the heat pump. You can
manually start and stop the pumps and valves from the menu Manual operation of
all functions.
Set when the additional heat should be activated. On delivery the heat pump is set
to activate the additional heat when necessary. Choose between Yes or No. If you
choose No, the additional heat only engages during alarms, extra hot water and hot
water peaks.
The function Fast restart means you do not have to wait for the normal restart time
to start the heat pump. If there is a need for heating or hot water the heat pump
starts within 20 seconds. The setting must be repeated each time you need to make
a fast restart.
Single phase models:
67
Clock setting
Add heat prog.time
accord. to clock 4.2
Return
Select
Commiss./Service
Manual operation of
all functions
5.3
Return
Select
Commiss./Service
Select function
add.heat yes/no 5.5
Return
Select
Commiss./Service
Fast restart
of heat pump
5.6
Return
Select
FOR THE INSTALLER
Set the hysteresis for heat pump on/off switching on the return sensor T1 (GT1). A
lower value gives a shorter range between start and stop. Less than 5ºC should be
avoided.
Commissioning the heat pump
Wait approximately 5 minutes after switching off the compressor before activating
rapid restart of the heat pump, to allow the cooling circuit time to equalise pressure.
In the menu 5.7 you set whether the heat pump, additional heat and hot water
charging should be controlled externally. When the external input on the control
unit is short circuited you can make one of the following choices:
0 : No effect (factory setting).
1 : HP, additional heat and hot water stop.
2 : HP no effect, additional heat and hot water stop.
3 : HP and hot water no effect, additional heat stops.
4 : HP and additional heat no effect, hot water stops.
Commiss./Service
Select external
controls
5.7
Return
Select
Note
If any of the alternatives to the left are
selected it is not possible to utilise any
of the functions in the menu Remote
control temperature (menu 1.13). See
Extra functions in the user section.
Select the language that you would like for the menu texts.
FOR THE INSTALLER
Commiss./Service
Selection of
language menu
5.8
Return
Select
The heat pump is set for continuous operation of the heat carrier pump on delivery.
In systems with a bypass, you can choose whether the heat carrier pump starts and
stops with the compressor.
Choose whether the heat transfer fluid pump shall run continuously, for example,
when using *natural cooling. The heat transfer fluid pump should in normal mode
always start and stop with the compressor.
Select this menu to see the version number of the control unit.
Confirm the extra sensors T3 (GT3), T4 (GT4) and T5 (GT5) that are connected
externally. On confirmation, the control unit stores information about the sensors to
be used.
Commiss./Service
Select operation
alt. for P2
5.10
Return
Select
Commiss./Service
Select operation
alt. for P3
5.11
Return
Select
Commiss./Service
Display software
version number 5.12
Return
Select
Commiss./Service
Connected extra
sensor in op
5.13
Return
Select
Timer readings
There are a number of different menu displays to help you check the status of the
heat pump. The heat pump status is shown by the timer readings in menu 6.
Read the additional heat timer
The function shows the amount of time remaining before the additional heat is
activated. If there is no countdown then there is no need of additional heat.
Read the start delay
* Natural cooling: In winter the heat pump takes heat from the bore hole in the rock and converts this to
heat in the house. In the summer the cold in the same bore hole is used to give pleasant air conditioning.
68
Timer readings
read add. heat
delay
6.2
Return
Select
Commissioning the heat pump
The function shows the time remaining until the heat pump starts again
after a previous stoppage. The heat pump will not start if there is no
heating or hot water need.
Timer readings
read start
delay
6.4
Return
Select
Setting the additional heat
Ramp time open
Here you set the time that you would like the electric cassette to go from
0 to 100%. In some cases the ramp time open, may need to be adjusted to
eliminate overexciting the system.
Ramp time close
Here you set the time that you would like the electric cassette to go from
100 to 0%.
Show connected electric capacity
Check how much additional heat (per cent) has been enabled. See more
information under the heading Technical information.
Additional heat
Setting additional
heat timer
8.1
Return
Select
Mixed add. heat
Setting of ramp
time open
8.3.4
Return
Select
Mixed add. heat
Setting of ramp
time close
8.3.5
Return
Select
Additional heat
Show connected elec.
capac. in op.
Return
Select
Return to factor y settings
If you regret your settings you can return to the factory settings in menu
12. If you are on Customer level 1 or 2 when you select Return to factory
settings, only the settings in the displays accessible from Customer level
1 and 2 will be reset. If you are on the Installer/Service level when you
select Return to factory settings only the displays accessible from Installer /
Service level are reset.
69
Main menu
Return to
factory settings 12
Return
Select
FOR THE INSTALLER
Additional heat timer
The function gives you the possibility to set the time that should elapse
before the additional heat starts if the heat pump cannot produce sufficient
heat on its own. On delivery the heat pump is set to one hour.
Commissioning the heat pump
Drying program for floor tile
When the heat pump has been installed in a newly built house with floor
heating, the Drying of floor tile function can be used.
The function is designed to slowly heat up the floor tile during a set
number of days. The temperature is then maintained for a set number of
days, to finally allow the tile to cool slowly for a set number of days. The
heat pump works during drying operations with the hysteresis set in the
display P1.4.
Note
During drying operations the heat
pump does not produce any hot water
and is not affected by timer controls.
Once the drying program has finished
the heat pump returns to normal mode.
FOR THE INSTALLER
It is also possible to operate drying program with only additional heat.
Here you set how many days you want the heating phase to last.
Drying program
No of days
for heating 5.14.1
Return
Select
Here you set how many days you want the floor heating system to maintain
the maximum drying temperature.
Drying program
No. of days for
max temp
5.14.2
Return
Select
Here you set how many days you want the cooling phase to last.
Drying program
No. of days for
temp + cold 5.14.3
Return
Select
Here you set the start and stop temperatures for the drying program.
Drying program
Start/Stop
temperature
5.14.4
Return
Select
Here you set the maximum temperature that the drying program should
work at.
Drying program
Max temp. during
drying
5.14.5
Return
Select
The function is activated and deactivated here. Drying program.
Drying program
Active
drying
5.14.6
Return
Select
Temperature
Note
When an extra shunt group is installed,
it works according to the normal heat
curve. The mixing valve must be
opened manually when you want this
circuit to be included in the drying
program too.
Time
70
Commissioning the heat pump
Manual test run of the heat pump
Instead of starting the heat pump directly in normal mode, you can manually test run
the pumps and valves. This is recommended as in this mode you can easily find any
possible faults. In the menu display Manual operation of all functions (menu 5.3) you
can run all functions manually. Press the Select button to start test operations. When
you exit from the menu display the heat pump returns to normal mode.
Commiss./Service
Manual operation of
all functions
5.3
Return
Select
Start the heat pump with only additional heat
Important points to check after start up
In the first period after commissioning particular attention should be paid to the
pressure and levels in the heat distribution and heat transfer fluid circuits. After a
short period of operation it may be necessary to top up the heat transfer fluid.
On delivery the motor cut-out setting is determined by a value produced during hot
water charging and a stable voltage. The recommended motor cut-out setting may not
always be suitable as the voltage in the mains can fluctuate. The setting may therefore,
from case to case, need to be adjusted. Adjust the setting using a clip-on ammeter
when the heat pump is producing hot water.
For the heat pump to perform at its best, it is important to check the flow on the hot
side of the heat pump. Usually, the heat carrier pump has a speed selector switch.
This must be set correctly for the pressure drop in the systems. A recommended
temperature difference over the heat pump on the hot side is between 7-10 °C and on
the cold side between 2-4 °C. You check this by going to menu display 3 and reading
the sensors T8 (GT8) and T9 (GT9) as well as T10 (GT10) and T11 (GT11).
It is important in systems with a bypass that the flow in the heating system exceeds
the flow over the heat pump. If this is not the case, the heat pump flow goes back via
the bypass to the heat pump return, which may cause the heat pump to give an alarm
for a high return temperature. The flow over the heating system should be so great
that the entire radiator surface is kept warm. In this way the heat emitting surface
increases and in doing so the flow temperature from the heat pump is kept down.
The heating system should be vented once again after test operations and then filled
with cold water if necessary.
71
Commiss./Service
Select function
only add. heat
5.4
Return
Select
Note
Do not forget to return this function to
normal mode.
FOR THE INSTALLER
It might be necessary to run the heat pump before work on the heat transfer fluid
circuit is complete. You can then start the heat pump with only additional heat. You
must have filled and vented the heating system to run the heat pump with only additional heat. Go to the menu display Select the function only add. heat (menu 5.4) and
press the Select button. If the arrow points towards Normal operation press the Adjust
button. Turn the menu dial until the arrow points towards Only add. heat. Now press
the Save button. This function ensures that additional heat heats both the hot water
and the heating water.
Commissioning report
Client / Installation address:
Installer:
Type of equipment:
Commissioning date:
Serial number:
Type of heat (soil heat, rock heat, other...):
Total length of collector:
FOR THE INSTALLER
Other components of the installation:
Additional heat
..............................................
Room sensor T5 (GT5)
Hot water heater type
..............................................
Hot water heater temperature sensor T3
(GT3)
Three-way valve
..............................................
Mixing valve sensor T4 (GT4)
Others: .....................................................................................................................................................................................................................
Points to be checked prior to commissioning
Heating system (pressure,
venting):
filled
checked
Notes: ......................................................
HTF collector system (pressure,
venting):
filled
checked
Notes: ......................................................
Electric cassette:
planned
checked
Notes: ......................................................
Particle filter:
checked
cleaned
Notes: ......................................................
Sight glass:
checked
Notes: ......................................................
Temperatures after 10 minutes heating or hot water mode:
Heat carrier out T8 (GT8): ............./..............˚C
Heat carrier in T9 (GT9): ............./..............˚C
HTF collector in T10 (GT10): ........../...........˚C
HTF collector out T11 (GT11): ........../...........˚C
Heat carrier pump G2 (P2) working correctly:................
HTF pump G3 (P3) working correctly:................
72
Commissioning report
Checks on concentrations carried out (collector hose and heating side)
.....................................................................................................
Functional test carried out
Menu settings 1.1, 1.4, 5.2 and 5.4. carried out
The instructions about how to use the heat pump have been sent to the client / to the user
Documentation about the apparatus has been handed over
FOR THE INSTALLER
Date and signature of the installer:
73
Technical information
Technical information
The heat pump’s factory settings
Sensor table
This table indicates the factory settings for all the settings likely to be
changed by the fitter.
This table indicates the values of the sensor
resistors to different temperatures.
Menu Factor y
Temperature (ºC)
k
1.1
temp. incr. / decr. +/-
4
-40
154,00
1.2
Temp. Fine-tune
0º
-35
111,700
1.3
Fine-tune the heat curve
0º
-30
81,700
1.4
Heat curve hysteresis
5º
-25
60,400
1.5
Mix. valve incr/decr
4
-20
45,100
1.6
Adjust. mix. valve
0º
-15
33,950
1.7
Fine tuning mix. valve curve
0º
-10
25,800
1.8
Mixing valve curve neutral zone
3º
-5
19,770
1.9
Max mixing valve curve at GT4
60º
0
15,280
1.10
inst. Int. temp
20º
5
11,900
1.11
Setting of room sensor
5
10
9,330
1.12
Setting holiday function
0 day
15
7,370
1.13
Remote control temperature
Inactive
20
5,870
1.14
Summer disconnection setting
18º
25
4,700
2.1
No of hours for add. hot water
0 hours
30
3,790
2.2
Range for HW peak
Inactive
35
3,070
2.3
Heating temp. setting
52º
40
2,510
2.4
Setting of DHW hysteresis
2º
45
2,055
4.1
Clock setting HP accord. to clock
Inactive
50
1,696
Level of PAC setting +/-
0º
55
1,405
4.1.1
TECHNICAL INFORMATION
settings
4.2
Timer control settings for add. heat
Inactive
60
1,170
4.3
Clock setting DHW accord. to clock
Inactive
65
0,980
5.2
Select capacity of conn. for additional heat
2/3
70
0,824
5.4
Select function add. heat only
OFF
75
0,696
5.5
Select add. heat function
yes
80
0,590
5.7
Select external control
0
85
0,503
5.10
Select P2 mode of funct.
P2 running cont.
90
0,430
5.11
Select P3 mode of funct.
P3 with Compres.
8.1
Setting add. heat time
60 minutes
Ramp time open
20 min
8.3.4
8.3.5
Ramp time closed
3 min
9.4
Min. temp pump inlet
-10º
9.5
Min. temp. pump outlet
-10º
74
Technical information
Technical information for three-phase models
Compress 3000
14 LW
17 LW
Emitted/ Supplied output at 0/35°C 1
kW
14.4/3.1
16.7/3.7
2
kW
13.9/4.2
16.2/4.9
Minimum flow heating side
l/s
0.35
0.40
Nominal flow heating side
l/s
0.50
0.57
Maximum pressure available heating side (at nominal flow)
kPa
54
51
Nominal flow of antifreeze mixture to the collector hose
l/s
0.78
0.90
Maximum pressure available to collector hose (at nominal flow)
kPa
74
71
Bioethanol - water or Propylene/ethylene
glycol - water
Type of antifreeze
Maximum pressure heating side
bar
1.5
Maximum pressure on collector hose side
bar
4
Maximum output temperature to the heating system
°C
65
Working temperatures on collector hose side
°C
-5 to +20
Integrated collector hose and heat carrier pump
Yes
Power supply
400V 3N~ 50Hz
Additional heat settings
kW
The recommended type of fuse depends on the electrical output 3
6 kW electric cassette
9 kW electric cassette
Starting current 4
3.0 / 6.0 / 9.0
A
20
25
A
25
32
A
52
50
Compressor
Scroll
Type R407c HFC refrigerant
kg
2.30
2.30
Connection for heat fluid out/in
mm
Cu 28
Cu 28
Out/in collector hose connection
mm
Cu 35
Dimensions of model LW (LxDxH)
mm
Weight of model LW
kg
Control unit
1
2
3
4
5
Cu 35
600x600x1520
190
195
Rego 637
Output data at 0/35°C and maccord. to clockeating medium flow are stated according to the European standard EN 255.
Output data at 0/50°C and maccord. to clockeating medium flow are stated according to the European standard EN 255.
aM type fuse, D curve circuit breaker
Soft starter
Electric anode included
75
TECHNICAL INFORMATION
Emitted/ Supplied output at 0/50°C
Technical information
Technical information single-phase models
Compress 3000
EHP7LW/M EHP9LW/M
11 LW/M
Emitted/ Supplied output at 0/35°C 1
kW
7.2/1.7
9.1/2.1
10.6/2.4
2
kW
6.8/2.2
8.5/2.7
10.0/3.2
Minimum flow heating side
l/s
0.18
0.22
0.26
Nominal flow heating side
l/s
0.25
0.31
0.38
Maximum pressure available heating side (at nominal flow)
kPa
36
34
33
Nominal flow of antifreeze mixture to the collector hose
l/s
0.38
0.46
0.57
Maximum pressure available to collector hose (at nominal flow)
kPa
45
44
80
Emitted/ Supplied output at 0/50°C
Bioethanol - water or
Propylene/ethylene glycol - Water
Type of antifreeze
Maximum pressure heating side
bars
1.5
Maximum pressure on collector hose side
bars
4
Maximum outgoing temperature to the heating system
°C
65
Working temperatures on collector hose side
°C
-5 to +20
Integrated collector hose and heat carrier pump
Yes
Power supply
230V 1N~ 50Hz
Additional heat settings
kW
3.0 / 6.0 / 9.0
The recommended type of fuse depends on the electrical output 3
6 kW electric cassette
9 kW electric cassette
Starting current. soft start
AaM
40
50
50
AaM
63
63
63
A
23.8
30.9
34.6
TECHNICAL INFORMATION
Compressor
Scroll
Type R407c HFC refrigerant
kg
1.60
1.80
2.40
Connection for heat fluid out/in
mm
Cu 22
Cu 22
Cu 22
Out/in collector hose connection
mm
Cu 28
Cu 28
Cu 28
Dimensions of Model LW (LwDxH)
mm
Weight of model LW
kg
Dimensions of Model LWM (LwDxH)
mm
Weight of model LWM Hot water heater in stainless steel
kg
Integrated hot water heater with double shell on model LWM.4
Hot water heater model LWM
litres
Control unit
1
2
3
4
600x600x1520
152
155
201
210
218
Stainless steel
Stainless steel
Stainless steel
185
185
185
Rego 637
Output data at 0/35°C and min heating medium flow are stated according to the European standard EN 255.
Output data at 0/50°C and maccord. to clockeating medium flow are stated according to the European standard EN 255.
aM type fuse, D curve circuit breaker
Electric anode included
76
170
600x600x1800
77
TECHNICAL INFORMATION
78
TECHNICAL INFORMATION
79
TECHNICAL INFORMATION
ROBERT BOSCH LIMITED
PO Box 42048
Tower Junction
Christchurch 8149
Telephone number +64 (0)3 943 0750
Fax number +64 (0)3 943 0756