IVT Optima 600 User manual

IVT Optima 600-1100
with IVT 290 A/W
Installation Guide
Art. no: 12331 Version 1.0

Installation guide IVT Optima 600 - 1100 with IVT 290 A/W
IVT Industrier AB, 2007/09
Article number: 12331
Version 1.0
Copyright © 2007. 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.

3
Table of Contents
Contents
FOR THE INSTALLER ..................................................................................................... 4
Important information to the installer .............................................................................5
Checklist.......................................................................................................................5
What the shipment includes ...........................................................................................6
General.........................................................................................................................7
Transporting and storage............................................................................................................................................................... 7
Positioning the heat pump.............................................................................................................................................................. 7
Minimum and maximum working temperatures ............................................................................................................................ 8
The heat unit’s different methods of control..................................................................................................................................... 8
Defrosting method .......................................................................................................................................................................... 8
Location of the temperature sensors................................................................................................................................................ 9
CANbus........................................................................................................................................................................................ 10
Detailed pictures connection area................................................................................................................................................. 11
Dimensions, clearance and plumbing connections..........................................................12
Optima ........................................................................................................................................................................................ 12
290 A/W...................................................................................................................................................................................... 12
Fit the particle filter ..................................................................................................................................................................... 13
Connecting to the heating system ..................................................................................14
Flushing the heating system.......................................................................................................................................................... 14
Connecting the heat pump, electric boiler and heating system ....................................................................................................... 14
Pump diagram............................................................................................................................................................................. 14
Connection principle .................................................................................................................................................................... 15
Filling the heating system ............................................................................................................................................................. 16
Connecting to the power supply ....................................................................................17
Accessories ................................................................................................................................................................................... 17
Options ........................................................................................................................................................................................ 17
Safety switch and earth-fault breaker............................................................................................................................................ 18
Emergency operation.................................................................................................................................................................... 18
Wiring diagram Optima .............................................................................................................................................................. 19
Wiring diagram 290 A/W............................................................................................................................................................ 20
Terminal diagram Optima -290 A/W .......................................................................................................................................... 21
External connections Optima ....................................................................................................................................................... 22
External connections 290 A/W..................................................................................................................................................... 23
Installer and service menu (I/S) ...................................................................................24
Menu over view ............................................................................................................25
Commissioning............................................................................................................28
Start the heat pump ..................................................................................................................................................................... 28
Start up ....................................................................................................................................................................................... 28
Commissioning the power guard................................................................................................................................................... 31
Other settings ............................................................................................................................................................................... 32
Important points to check after commissioning............................................................................................................................. 32
Draining the heating system .........................................................................................33
Timers ........................................................................................................................ 34
Alarm functions...........................................................................................................35
Technical information ..................................................................................................36
Factory settings ............................................................................................................................................................................ 36
Technical information.................................................................................................................................................................. 39
Sound levels ................................................................................................................................................................................. 40
Sensor table.................................................................................................................................................................................. 40

4
This guide provides the heat pump installer with a description of how the heat
pump and the electric boiler are installed and commissioned. The installation
section consists of a plumbing part and an electrical part. It also provides
technical data such as measurements, wiring diagrams and installer menus.
We hope that you read through this guide carefully and that you respect all
notes and warning texts.
Note
It is important that as the installer you also read through the User guides for
Optima and 290 A/W. Here you will find the information necessary to get a
comprehensive understanding of the heating unit.
Contents:
Important information to the installer
Checklist
What the shipment includes
General
Dimensions, clearance and plumbing connections
Connecting the heat pump and electric boiler to the heating system
Connecting the heat pump and electric boiler to the power supply
External connections
Commissioning
Technical information
Important information to the installer
For the Installer

5
This manual gives you all the information necessary to install the heat pump
and electric boiler. The guide is divided into several parts in the order in
which installation and commissioning must be carried out.
Before staring the installation:
The heat pump may be temporarily tilted with the compressor
downwards. It must never laid down or transported horizontally. (See
Transport and storage)
Check that the plumbing connections in the heat pump and the electric
boiler are intact and have not shaken loose during transport.
Before the commissioning the heating system must be filled up and
completely vented.
Important information to the installer
Checklist
The following checklist will give you a general description of how the installa-
tion should be carried out.
1. Position the heat pump on a solid base.
2. Install the incoming and outgoing pipes for the heat pump.
3. Install the drainage pipe for the heat pump.
4. Fit the particle filter.
5 Install the incoming and outgoing pipes for the electric boiler.
6 Install the waste water hose for the electric boiler.
7. Connect the heat pump and electric boiler.
8. Connect the heat pump and the electric boiler to the heating system.
9. Install the outdoor sensor and room sensor if used.
10. Connect the CANbus wiring between the heat pump and 290 A/W.
11. Fill and vent the heating system before commissioning.
12. Connect the standard enclosure (safety switch included), any earth-fault
breaker and any power guard..
13. Connect the heat pump and electric boiler to the power supply.
14. Commission the heating installation by making all the necessary settings
on the control panel.
15. Check the heating installation after commissioning.
Warning
For reasons of safety the main power
supply must be disconnected before
working on the heat pump and elec-
tric boiler.
!
Note
Only qualified installers may carry
out the installation. The installer must
follow applicable rules and regula-
tions and recommendations from the
supplier.
Important information to the installer / Checklist

6
What the shipment includes
The following components are included in the delivery of the heat pump:
Circlip pliers
Quantity: 1
Particle filter with screen
Quantity: 1
Outdoor sensor with cable T2
Quantity: 1
Rubber feet
Quantity: 4
What the shipment includes
The following components are included in the delivery of the electric boiler:
User Guide IVT Optima
Quantity: 1
User Guide IVT 290 A/W
Quantity: 1
Installation guide IVT Optima 600-1100
with IVT 290 A/W
Quantity: 1
Accessories/Options (not included in delivery):
Room sensor T5
Softstarter
Heating cable: 2m / 30W
3m / 45W
5m / 75W
Power guard
Standard enclosure
Quantity: 1

7
Positioning the heat pump
The heat pump is located outdoors. It contains a number of sensitive
parts. It is important that it stands on a flat and solid base, for example,
concrete slabs on ground insulation.
The installer should take sound propagation into consideration when
positioning the heat pump. See more information under the heading
Technical information/ Sound levels.
The electric boiler is placed indoors. Pipe routing between the heat
pump/electric boiler and the existing heating system should be as
short as possible. The outdoor pipes must be insulated.
The heat pump produces condensation and melted ice during the
defrosting process. It is therefore import to lead off this water from the
heat pump to a floor drain inside the house.
Note that the drainage pipe must slope towards and run out above the
floor drain. This will keep the drainage pipe free of frost as air is drawn
from inside the house. In those cases the drainage pipe is released into
the surface water outdoors, the pipe must be fitted with a heating cable
(accessory) to avoid freezing. A suitable output is 10-20 W/metre. The
cable can be connected to terminals in the heat pump. See External
connections Optima.
The heat pump must be positioned so that air is not prevented from
passing through the evaporator. Minimum distance to a wall is 300
mm. Avoid positions which result in circulation of cold air because this
decreases the heat pump output.
Avoid falling snow and eaves drop. In some cases a protective roof may
be necessary. The roof should then be installed at least 1.5 m above the
heat pump to avoid the recirculation of cold air.
General
Transporting and storage
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 electric boiler must not be stored or transported at temperatures
below 0ºC. The heat pump must not be stored at temperatures below 0ºC.
Note
The amount of condensation water
can, during days of high humidity,
amount to 30-40 litres.
General

8
Maximum working temperatures
The heat pump can work with a maximum return temperature of approxi-
mately 59ºC. If the temperature rises above this value the heat pump will
stop for reasons of technical safety.
In the event of additional heat only, the maximum flow temperature is
limited to the factory setting 62ºC. This can be changed by the installer to
max 70ºC. If a value higher than 65ºC is set a mixing valve must be installed.
See Commissioning.
Minimum working temperatures
The heat pump stops if the outdoor temperatures falls below approx -20ºC.
All heat production then occurs in the electric boiler. The heat pump starts
automatically when the outdoor temperature climbs above approx -20ºC.
The heat unit’s different methods of control
The control unit uses different methods to control the heating installation.
These are: Control with an outdoor sensor and Control with an outdoor
sensor supplemented with a room sensor.
More information about the control methods can be found in the User
Guide for Optima.
General
Minimum and maximum working temperatures
Defrosting method
The principle of defrosting in the heat pump is known as hot gas defrost-
ing. During defrosting, the flow in the refrigerant circuit is reversed by
means of an electrically-controlled four-way valve. The compressed gas
from the compressor is fed into the top of the evaporator, causing the ice
on the outside to melt. During this process, the heating water is cooled
slightly. Hot gas is sprayed into the evaporator and sensor T11 ensures that
the process functions correctly. The time required for defrosting depends
on the amount of ice and the outdoor temperature.
There is also a fan defrost function, which means that hot air blows
upwards through the fan to prevent it freezing solid.

9
General
3-way
valve
3-way
valve
Heating
system
Heating
system
T1 Flow sensor
T2 Outdoor sensor
T3 Hot water sensor
T5 Room sensor
T6 Sensor compressor temperature
T8 Sensor heat transfer fluid out
T9 Sensor heat transfer fluid in
T10 Sensor condenser temperature
T11 Sensor refrigerant temperature
evaporator
T12 Sensor air temperature evaporator
Location of the temperature sensors
Optima 290 A/W

10
General
In Rego 800 the different circuit boards are connected by a communica-
tions cable, CANbus. CAN is an abbreviation of Controller Area Network
and is a two wire system for communication between the microprocessor
based modules/circuit boards. These are connected in series.
The heat pump has one circuit board (IOB circuit board), other circuit
boards are in the electric boiler. A power guard, which also connects to the
CANbus, is available as an accessory.
Cable ELAQBY 2x2x0.6A is suitable cable for external laying (con-
nection between the circuit boards). The cable must be twisted pair and
screened. The screen must only be earthed at one end and to the chassis
(not to the circuit board). Maximum cable length is 20 m.
CANbus cables must not be laid alongside power cables. They may be laid
alongside sensor cables.
In the connection area of the heat pump and the electric boiler the external
CANbus cable must be laid so that it does not come into contact high
current connections (230/400V).
The connection between the circuit boards is by four wires since the
12V-supply between the circuit boards must also be connected. The circuit
boards have markings for both the 12V and CANbus connections.
Warning
Do not mix up the 12V and CAN-
bus connections! If 12V (or other
incorrect voltage) is supplied to the
CANbus contacts the processors in the
CANbus are destroyed. Check, there-
fore, that the four cables are connected
to the contacts with the corresponding
marking on the circuit boards in the
electric boiler and the heat pump.
Switch S1
The switch is used to mark the start and end of a CANbus loop. This
means that the display circuit board in the electric boiler (marked CPU on
the wiring diagram) and the IOB circuit board in the heat pump must be
terminated using S1, which must be in position Term. If a power guard is
used this circuit board must be terminated instead of the CPU circuit board
in the electric boiler. Ensure that the correct circuit boards are terminated
and that all other switches are in the opposite position.
CANbus
Warning
The CANbus cable must be screened
and laid separately from the power
cable to prevent interference in the
CANbus communication.
Warning
Handle the circuit boards with great
care. They are sensitive to ESD (Elec-
trostatic discharge), which can cause
faults in electronic components.
Screen

11
General
Electric boiler
Heat pump
Detailed pictures connection area
Power guard
circuit board
(option)
High pressure
switch
Service connection Compressor
Expansion valve
Four-way valve
Service connection
Non-return valve
Low pressure
switch
Drying filter
Sight glass
Condenser
Venting nipple
Shut-off valve with
non-return valve
Discharge water
vessel
Safety valve tap water
Drain valve Three-way
valve
Three-way
valve
Pump for heating
system (G1)
Heat carrier
pump (G2)
Filling heating water
Pressure gauge
(0.5 – 1.5 bar)
Mixing valve
To the heat pump
Pipes to and from the
heat pump are con-
nected at the back

12
Dimensions, clearance and plumbing connections
Front
Left-hand side
1) To the electric boiler
(Cu 28). (Connect to 1) in the elec-
tric boiler picture.
Electric lead-ins
Dimensions, clearance and plumbing connections
Back
Drainage
640
1190
60
820 411
220
105
101 165 201
Optima
290 A/W
Required installation space for the electric boiler.
A free space of 600 mm is required in front of the electric boiler. The other
sides can be blocked.
A minimum of 25 mm is required between the electric boiler and other
permanent installations (walls, sinks, etc.). A suitable placement is against
an outer wall or insulated partition wall.
Min. space 1,240 mm
Wall Insu-
lated
wall
Front
Min. 25 mm
Min. 600 mm
290 A/W
Required installation space for the heat pump.
Minimum distance from the pump to the wall is 300 mm.
Minimum distance in front of the pump 1000 mm, to the sides 500 mm.
If a roof is installed it must be positioned at least 1.5 m above the heat
pump to avoid the recirculation of cold air.
2)
From the electric boiler
(Cu 28). (Connect to 2) in the
electric boiler picture.

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Pipe connections
The following connections are made to the electric boiler:
A 32 mm plastic pipe is drawn from the waste water pipe to the floor drain.
The flow is connected to the inlet marked Forward flow.
The return is connected to the inlet marked Return flow. Cold water and
hot water are connected to inlets marked Cold water and Hot water.
The following connections are made to the heat pump:
A 32 mm plastic pipe is drawn from the drainage pipe to the floor drain.
Pipe dimensions
Riser/return
Clamping ring connection mm ø22
CW and HW
Clamping ring connection mm ø22
To/from connections
Clamping ring connection mm ø22 (in the electric boiler)
Clamping ring connection mm ø28 (n the heat pump)
Waste water/drainage mm ø32 (in both)
290 A/W front view
Waste water
Hot water Cold water
View connection area 290 A/W seen from behind
290 A/W top view
Riser heating system
Return heating system
Fit the particle Þlter
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 the hot side. (See page. 15: V21)
It should be fitted as close to the heat pump as possible and be horizontal.
1) From the heat pump.
(Connect to 1) in the heat pump picture.
2) To the heat pump.
(Connect to 2) in the heat pump picture.
Dimensions, clearance and plumbing connections

14
Note
Only qualified installers may carry
out the installation. The installer must
follow applicable rules and regula-
tions and recommendations from the
supplier.
Connecting to the heating system
Connecting to the heating system
Flushing 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 heat pump is a part in a heating system. Faults in the heat pump can be
caused by poor water quality in the radiators/underfloor coils or that air is
penetrating the system continuously. Oxygen causes corrosion products in the
form of magnetite and sediment. Magnetite has a grinding effect on the heat
pump pumps, valves and components with turbulent flows such as the condenser.
Heating systems which require regular filling or where the heating water is not
clear when drained, requires remedial measures before the installation of a heat
pump, for example the heating system must be fitted with filters and vents. Do not
use any water treatment additives except agents for raising the pH level.
An intermediate heat exchanger is sometimes necessary to protect the heat pump.
Connecting the heat pump, electric boiler and
heating system
Use the information in section Dimensions, clearances and plumbing connections to
connect the different parts of the heating installation.
In addition, to avoid vibration transfer between the heat pump and the pipe system
we recommend fitting flexible hoses at the inlet and outlet of the heat pump.
Between the heat pump and the house we recommend 28 mm copper pipe for
lengths of less than 20 metres. The pipes must be insulated with a material, such
as Armaflex, which cannot absorb moisture. Venting valves must be provided on
the pipes. Short outdoor pipes reduce heat losses.
Diagram: Pump for heating system (G1)
Water ßow [l/h and l/s]
Available pressure
Pos 1 Pos 2
Pos 3
Pump diagram

15
Q Shut off valve
Q Safety valve outlet
Q Control valve with motor
T Temperature sensor
E Electric element
E Double-shelled water heater with electric ele-
ment
E Oil-Þred boiler
E Heat pump
W Filter/Screen
G Pump
G Fan
W Filter valve
W Domestic hot water
W Inlet/outlet
Pipe (Arrow denotes direction of ßow)
Crossing pipes
T-piece
Optima with Electric boiler 290 A/W
Connection principle
The principle is based on liquid condensation and additional heat from electric boiler 290 A/W. The control unit
controls the heat pump using the outdoor sensor T2 and the return sensor T1 according to the set heat curve. When
the heat pump is unable to meet the heating requirements, the electric boiler 290A/W starts automatically and
together with the heat pump provides the required temperature. Hot water is prioritised and controlled by a sensor,
T3 in the heater. While the water is heating in the hot water heater, the heat production by the heat pump is discon-
nected temporarily through a three-way valve. When the hot water heater is heated the heat pump continues the
heat production.
Hot water mode when the heat pump is not operating:
At outdoor temperatures lower than approximately -20, the compressor in the heat pump is switched off and all
heating and hot water heating is via the electric element in 290 A/W.
Connected sensors:
T1 Flow sensor
T2 Outdoor sensor
T3 Hot water sensor
T5 Room sensor (accessory)
T8 Sensor heat transfer fluid out
T9 Sensor heat transfer fluid in
Connecting to the heating system
3-way valve
Hot water
Cold water
Particle filter
Heating system
Outdoor
sensor
Room sensor,
accessory
3-way valve

16
Connecting to the heating system
Filling the heating system
After flushing the heating system the hot water heater must be filled with
water. The heating system is then filled.
Fill the heating system with water, as follows:
1. Open the Shut-off valve with non-return valve so that the hot water
heating system fills.
2. Fill the heating system by opening the tap Filling heating water.
3. Vent the heating system by opening the Venting nipple which is located
close to the top of the hot water tank. Also open the heat pump Venting
nipple. Refill the system to the correct pressure. Normal pressure is
0.5 – 1.5 bar.
4. Close the tap Filling heating water when the correct pressure is
reached.
Safety valve
heating water
Venting nipple
Warning
The hot water heater must always be
filled and pressurised before the heat-
ing system is filled.
The installation must not, under any
circumstances, be switched on without
water.
290 A/W
Shut-off valve with
non-return valve
Filling heating water
Pressure gauge
Drain valve
290 A/W
Venting nipple
Optima

17
Connecting to the power supply
Check that cables and printed circuit boards are intact. High and low
current cables should be routed separately in order to avoid interference
on the sensors.
Install outdoor sensor T2, standard enclosure (see Terminal diagram
Optima -290 A/W) and relevant accessories.
Accessories
Room sensor T5
The room sensor is placed centrally in the house and is connected
according to External connections 290 A/W.
Softstarter
The compressor can be equipped with a softstarter to reduce the inrush
current. The soft starter is fitted on the heat pump and is connected as in
the Wiring diagram Optima.
Heating cable
A drainage pipe from the heat pump’s drip collector may need to be fitted
with a heating cable. See Accessories under What the shipment includes for
information about lengths. The heating cable is connected according to
External connections Optima.
Options
Power guard
The installation can be supplied with a power guard. The task of the power
guard is to temporarily disconnect the electric additional heat when using
other power demanding appliances so that the main fuse does not blow.
The power guard is connected according to its connection instructions.
Connecting to the power supply
Warning
Handle the circuit boards with great
care. They are sensitive to ESD (Elec-
trostatic discharge), which can cause
faults in electronic components.

18
Safety switch and earth-fault breaker
Safety switch
All heating installations must be preceded by a safety switch.
Earth-fault breaker
If the heating installation is to be connected across an earth-fault breaker
then a separate earth-fault breaker for the heating installation is recom-
mended. Comply with applicable regulations.
Emergency operation
The heat pump is equipped with emergency operation which means that the
additional heat takes over the heating production in the event of faults in the
control unit. Read more about emergency operation in the User Guide.
There is a thermostat for flow temperature during emergency operation on
the AHB circuit board. It is factory set to 35°C which is the normal setting
for the underfloor heating system. If the heating system only has radiators
the setting must be increased to 55°C.
Connecting to the power supply

19
Wiring diagram Optima
Wiring diagram
B1: Phase sequence monitor E3: Crankcase heating E4: Any heating cable F1: Miniature circuit breakers G3: Fan K1: Contactor compressor M1: Compressor MB2: Motor cut-out compressor Q4: Four-way valve R1: Soft starter HP: High pressure switch LP: Low pressure switch T6: Compressor hot gas T8: Heat transfer ßuid out T9: Heat transfer ßuid in T10: Condenser T11: Evaporator temp T12: Air intake
To the electric
boiler
Fan G3
Blue Brown
Black
S1 must be in "Term" position on the Þrst and last circuit board in the CANbus loop.
1) Strap

20
Wiring diagram 290 A/W
E1: Electric element 4.5/6.75 kW
E2: Electric element 4.5/6.75 kW
F1: Miniature circuit breakers
F21: Overheating protection
F31: Electronic anode in hot water heater
G1: Pump for heating system
G2: Heat carrier pump
Q1: Three-way valve
Q2: Three-way valve
Q3: Mixing valve
S1: Termination switch
S2: Switch emergency operation
T: Emergency thermostat
T1: Sensor ßow heating system
T2: Outdoor sensor
T3: Hot water sensor
T5: Any room sensor, accessory
T99: Emergency operation sensor
To the heat
pump
1) Strap
Display card
Wiring diagram
Open
Open
Close
Power guard
(accessory)
The current transformers
are installed on the house’s
incoming power supply.
S1 must be in "Term" position on
the Þrst and last circuit board in
the CANbus loop.