IVT Greenline HT PlusC, Greenline HT PlusE User Manual
Greenline HT Plus
C and E
User Guide
Art. no: 290410-9 Version: 1.0
FOR THE USER
INDEX
3
Manual for Heat pump Greenline HT Plus C and E
IVT Industrier AB, 2004-06-27
Article number: 290410-9
Version 1.0
Copyright © 2004. IVT Industrier AB. All rights reserved.
This manual contains copyright protected information that is the property of IVT Industrier AB. No part of this document may be copied or forwarded, electronically or mechanically,
without prior, written permission from IVT Industrier AB. This includes photographing and translation to another language.
Thank you for choosing a heat pump from
IVT Industrier
We hope that our heat pump meets your expectations and gives you many years of energy saving. We want you and
your family to enjoy a good economy at the same time as you actively safeguard the environment. We have taken today’s
demands on heat pumps into consideration and believe that your Greenline HT Plus will give you many useful functions in
the future. Your heat pump features an advanced control unit that monitors and controls the temperature in the house and
contributes towards improved overall economy. The heat pump Greenline HT Plus has, for example, a holiday function,
that's to say the heat pump can be set at a “low level” while you are away on holiday.
IVT is the leading heat pump manufacturer in the Nordic Countries. More than every second heat pump comes from IVT.
We have worked with solutions to reduce energy consumption on the environment’s terms for more than 30 years. Today
we can present the widest range of heat pumps for effi cient energy saving in all types of housing and properties.
Johnny Wärnelöv
Managing director IVT Industrier AB
4
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
Control unit Rego 637 ..................................................................................... 10
The control unit’s two methods to control the heat pump ........................................................................................11
The control panel ............................................................................................ 12
Buttons and 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 factory settings .......................................................................................................................................27
Maintenance ................................................................................................... 28
Opening the front cover .........................................................................................................................................28
Sight glass .............................................................................................................................................................28
Expansion vessel ...................................................................................................................................................29
Particle fi lter ......................................................................................................................................................... 29
Checking the protective anode ...............................................................................................................................30
Savings .......................................................................................................... 31
What to do if a fault occurs .............................................................................. 32
Dimmed menu display ..........................................................................................................................................32
Fuses and reset buttons on the heat pump .............................................................................................................. 33
All alarms .............................................................................................................................................................33
Technical information ...................................................................................... 40
The heat pump's factory settings ............................................................................................................................40
Sensor table ...........................................................................................................................................................40
Technical information ...........................................................................................................................................41
Index ............................................................................................................. 42
Table of Contents
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.
Important information
The heat pump Greenline HT Plus represents a new generation of heat
pumps from IVT Industrier. It contains numerous functions to control the
temperature and production of hot water in the house. The control unit
Rego 637 is the brains of the heat pump. Rego 637 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.
For the user
6
FOR THE USER
This is how your heat pump works
The heat pump Greenline HT Plus represents a new generation of heat pumps from IVT Industrier. 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.
The heat pump collects stored solar energy
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.
Note
Rock heat Soil heat Lake heat
The heat pump consists of four main parts:
1. Evaporator
Evaporates the refrigerant to gas and at the same time transfers the
heat from the heat transfer fl uid to the refrigerant circuit.
2. Condenser
Condenses the gas to fl uid again and transfers the heat to the heating
system.
3. Expansion valve
Lowers the pressure of the refrigerant.
4. 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.
Technology in and around the heat pump
This is how your heat pump works
7
FOR THE USER
Heat transfer fl uid in. A hose is connected here that collects the stored solar energy from, e.g., the soil or
rock. The hose contains a heat transfer fl uid, which is a mixture of water and anti-freeze. The fl uid collects
the heat from the rock and with the help of the HTF pump leads it into the heat pump and the evaporator. The
temperature is then approximately 0ºC.
In the evaporator the heat transfer fl uid meets the refrigerant. At this stage the refrigerant is in a fl uid state
and is at approximately -10ºC. When the refrigerant meets the zero degree heat transfer fl uid it starts to boil.
It then forms a vapour, which is led into the compressor. The temperature of the vapour is 0ºC.
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.
The condenser is the heat pump's heat emitting part. Here the heat is transferred to the house’s heating
system (radiators and fl oor heating) and the hot water system. The vapour is cooled in the condenser and
becomes fl uid. The pressure in the refrigerant is still high when it is led on to the expansion valve.
The refrigerant pressure is then lowered in the expansion valve. At the same time, the temperature also drops
to approximately -10ºC. When the refrigerant has passed through the valve and the evaporator it changes to
vapour again.
In heat transfer fl uid out, the heat transfer fl uid is led out from the heat pump to the rock to collect new stored
solar energy. The temperature of the fl uid is approximately -3ºC.
1
2
3
4
5
6
Floor heating
Radiator
Fan-assisted
radiator
Heat pump
Rock
Soil
0ºC
-3ºC
0ºC +100ºC
+65ºC
+57ºC
-10ºC
1
6
2 3 4
5
Heat carrier pump
Heat
transfer pump
This is how your heat pump works
"The hot side"
"The cold side"
8
FOR THE USER
Component parts of the heat pump
Three-way valve
The valve switches between
heating the heating water and hot
water.
Hot water heater
The cylinder is double-shelled
and holds approximately 165 litres
of hot water and 60 litres of the
heating water.
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 carrier 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 decrease the noise
level.
Socket
Connections for the mains supply
as well as sensors.
Control panel
The control panel has a background lit menu display with four
rows of text information, three
buttons and a dial.
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.
Heat transfer fl uid pump
The pump is insulated and
features an anti-corrosive fi nish.
It ensures the heat transfer fl uid
circulates from, e.g. the rock to
the heat pump.
Control unit Rego 637
The control unit is enclosed. It
controls and monitors all heat
pump functions.
Expansion valve
Lowers the pressure of the
refrigerant that is to enter the
evaporator and collect energy
from, e.g. the rock.
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.
Flexible hoses
The hoses counteract vibrations in
the heat pump.
IVT Greenline HT Plus C
Evaporator
The evaporator evaporates the
refrigerant to gas and transfers
heat from the heat transfer fl uid to
the refrigerant circuit (behind the
heat pump).
Condenser
The condenser condenses the
vapour to fl uid again and transfers
the heat to the heating system.
Component parts of the heat pump
9
FOR THE USER
IVT Greenline HT Plus E
Reset button
Press in the button if the overheat
protector on the electric cassette
has tripped. The button is located
on the side.
Heat carrier 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 decrease the noise
level.
Socket
Connections for the mains supply
as well as sensors.
Control panel
The control panel has a background lit menu display with four
rows of text information, three
buttons and a dial.
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.
Heat transfer fl uid pump
The pump is insulated and features
an anti-corrosive fi nish. It ensures
the heat transfer fl uid circulates
from, e.g. the rock into the heat
pump.
Control unit Rego 637
The control unit is enclosed. It
controls and monitors all heat
pump functions.
Expansion valve
Lowers the pressure of the refrigerant that is to enter the evaporator
and collect energy from, e.g. the
rock.
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.
Flexible hoses
The hoses counteract
vibrations in the heat pump.
Evaporator
The evaporator evaporates the
refrigerant to gas and transfers
heat from the heat transfer fl uid to
the refrigerant circuit (behind the
heat pump).
Particle fi lter
The fi lter can be opened for easy
cleaning. It also has a shut off
function.
Electric cassette
The electric cassette is used
to provide extra output in cold
weather conditions, with large
water consumption and at hot
water peaks.
Three-way valve
The valve switches between
heating the heating water and hot
water.
Condenser
The condenser condenses the
vapour to fl uid again and transfers
the heat to the heating system.
Component parts of the heat pump
10
FOR THE USER
Control unit Rego 637
The control unit Rego 637 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.
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 in the Greenline HT Plus 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.
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/fl oor heating
and hot water is for showers and taps. Hot water is heated in a hot water
cylinder. The hot water cylinder is fi tted with a sensor that senses the
temperature of the hot water. In Greenline HT Plus C there is a hot
water cylinder inside the heat pump while Greenline HT Plus E has an
external hot water heater. The heating water passes through the hot water
cylinder’s outer shell and heats up the hot water cylinder’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.
Control unit
Rego 637
Electric
cassette
(additional
heat)
Three-way
valve
Double-shelled
hot water heater
Heating water
Hot water
Control unit Rego 637
11
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 an outdoor sensor
Control with an outdoor sensor is the most common method used by the
control unit to control the heat pump. When the heat pump is delivered it
is set for this control method. A sensor is fi tted on the outside wall of the
house. It sends signals to the control unit in 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 an outdoor sensor supplemented
with a 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 infl uence the indoor temperature. Examples include the use of a stove
or fan-assisted radiator, or if the house is sensitive to the wind.
It is only the room where the room
sensor is located that can infl uence
regulation of the temperature.
Note
Control unit Rego 637
12
FOR THE USER
The 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 Rego 637 to carr y out your wishes.
Control panel
Menu dial
Status lamps
Power switch (ON/OFF)
Buttons and 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 fl ashes: The heat pump is off.
Operating status
Lamp on: The heat pump (compressor) is
operational.
Additional heat status
Lamp on: The heat pump is using additional heat
from, e.g. an electric cassette.
Hot water status
Lamp on: The heat pump is heating water in the
cylinder.
Lamp fl ashes: The heat pump has a hot water
peak or is producing extra hot water.
Alarm status
Lamp fl ashes: A fault has occurred in the heat
pump.
Lamp on: The alarm has been acknowledged, but
the fault remains.
Heat
Heat
Pressing once gives a shortcut to the most
frequent temperature settings.
Info
Pressing once gives continuous information about
the heat pump’s and additional heat’s operating
conditions.
Menu
Press once to enter the main menu.
The main menu contains all setting menus and
temperature displays.
Info
Menu
Menu display
Menu buttons
Control panel
Rego 637 K1
040622 16:08:15 Tu
Heat Info Menu
Rego 637 K1
040622 16:08:15 Tu
Heat Info Menu
13
FOR THE USER
Rego 637 K1
040622 16:08:15 Tu
Heat Info Menu
Control panel
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:
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.
How to use the control panel
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 signifi cance of the buttons. The
function of the buttons changes depending on which window you
are currently in.
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 signifi cance 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.
Initial menu display
+
Initial menu
Initial menu
Time Date
Customer level 1
Day
Basic functions ( Customer level 1)
Basic functions (Customer level 1) are the functions most frequently used
and the ones you have the most benefi t 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.
Rego 637 K1
040622 16:08:15 Tu
Heat Info Menu
Rego 637 K1
040622 16:08:15 Tu
Heat Info Menu
Temp. incr. / decr.
0 5,0 10
Return Adjust
14
FOR THE USER
Basic functions - Customer level 1
The menu display is standard on all
heat pumps.
=
=
Temp. fi ne-tune
Page 17
The menu display is only shown on
the heat pump in combination with an
extra sensor or for a specifi c model of
Greenline HT Plus.
Temp. incr. / decr.
Page 16
Room temperature
Page 18
Extra hotwater
Page 18
STANDBY
No rad heat required
No hotwater required
Page 15
HOTWATER MODE
Heat pump only
Page 15
HEAT RAD MODE
Compr. + Add. heat
Page 15
HEAT RAD REQ
Heat pump starts
in #### seconds
Page 15
Main menu
Indoor temperature
settings 1
Page 19
Temperature settings
Temp. incr. / decr.
range 0-10 1.1
Page 16
Temperature settings
Temp. fi ne-tune
range -10/+10 1.2
Page 17
Temperature settings
Setting of room
temperature 1.10
Page 18
Main menu
Adjusting the hot
water settings 2
Page 19
Hot water setting
Duration of
add. hot water 2.1
Page 18
Main menu
Monitor all
temperatures 3
Page 19
Temperature readings
Return radiator GT1
Temperature readings
Out GT2
Temperature readings
Hot water GT3
Temperature readings
Shunt, fl ow GT4
Temperature readings
Room GT5
Temperature readings
Compressor GT6
Temperature readings
Heat trfl uid out GT8
Temperature readings
Heat tr fl uid in GT9
Temperature readings
Ht trfl d(coll)inGT10
Temperature readings
Httrfl d(coll)outGT11
Page 20
Note
Each menu is numbered in the lower
right-hand corner; this indicates which
main display it is associated to.
Select scrolling information on the menu
display
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:
Menu outline for Basic functions (Customer level 1)
Rego 637 K1
040622 16:08:15 Tu
Heat Info Menu
Rego 637 K1
040622 16:08:15 Tu
Heat Info Menu
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