Baxi HP40/50-4-1PHMB Manual

Installation and Service Manual
Heat Pump air/water ‘inverter’
HP40/50-4-1PHMB
HP40/50-5-1PHMB
HP40/50-7-1PHMB
HP40/50-8-1PHMB
HP40/50-11-1PHMB
HP40/50-13-1PHMB
HP40/50-11-3PHMB
HP40/50-13-3PHMB
IMPORTANT
Please read & understand all these instructions before commencing installation.
Please leave this manual with the customer for future reference.
United Kingdom
en
1

Abbreviations:
Tbt1: Buffer tank upper temperature sensor
Tbt2: Buffer tank lower temperature sensor
(for optional)
Tsolar: Solar temperature sensor
T5: DHW tank water temperature
T5S: DHW set temperature
T4: Outdoor temperature (°C)
T1: Leaving water temperature (°C)
Pump_O: Outside circulation pump
Pump_S: Solar pump (Field supply)
Pump_I: Water pump inside of the unit
Pump_D: DHW pipe pump
IBH: Backup electric heater
AHS: Additional heat source
DHW: Domestic heating water
TBH: Tank Booster Heater
Installation reference guidance standards:
• Pressure Equipment Directive 2014/68/EU
• Low Voltage Directive 2014/35/EU
Generic standard: EN 60335-1
Relevant standards: EN 60335-2-40,
• Electromagnetic Compatibility Directive 2014/30/EU
Relevant standard: EN 55014
•BS EN14511
•BS EN 14825
This product conforms to the requirements of
European Directive 2009/125/EC on the ecodesign of
energy-related products.
In addition to the legal requirements and guidelines,
the supplementary guidelines in this manual must also
be followed.
Supplements or subsequent regulations and guidelines
that are valid at the time of installation shall apply to all
regulations and guidelines specied in this manual.
It has been manufactured and commissioned in
accordance with the European directives and Statutory
requirements applicable. The unit complies with
the standard type described in the EC declaration
of conformity. It has been manufactured and
commissioned in accordance with European directives.
The original declaration of conformity is available from
the manufacturer.
Contents
1 Safety Precautions & Liabilities
· 4.1 Accessories supplied with the unit
· 4.2 Accessories available from supplier
5 Before Installation
6 Installation Site
· 6.1 Selecting a location in cold climates
· 6.2 Selecting a location in hot climates
7 Installation Precautions
· 7.1 Dimensions
· 7.2 Installation requirements
· 7.3 Drain hole position
· 7.4 Servicing space requirements
8 Typical Applications
· 8.1 Application 1
· 8.2 Application 2
· 8.3 Cascade system
· 8.4 Buffer tank volume requirement
9 Overview of the unit
· 9.1 Disassembling the unit
· 9.2 Main components
· 9.3 Electronic control box
· 9.4 Water piping
· 9.5 Filling water
· 9.6 Water piping insulation
· 9.7 Field wiring
10 Start-up & Conguration
· 10.1 DIP switch settings overview
· 10.2 Initial start-up at low outdoor ambient
temperature
· 10.3 Pre-operation checks
· 10.4 The circulation pump
· 10.5 Field settings
11 Final Checks & Test Run
· 11.1 Final checks
· 11.2 Test run operation (manually)
12 Maintenance & Service
13 Trouble Shooting
· 13.1 General guidelines
· 13.2 General symptons
· 13.3 Operation parameter
· 13.4 Error codes
14 Final Checks & Test Run
· 14.1 Final checks
· 14.2 Test run operation (manually)
15 Information Servicing
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Directives
Homologations
EC and UKCA Declarations of Conformity
·1.1 Safety Precautions
·1.2 Manufacturer's liability
·1.3 Installer's liability
·1.4 User's liability
2Important information about the refrigerant
3 General Introduction
4 Accessories
2
7
7
9
•BS EN 12831
•BS EN 14336
•BS7074
•BS 7593
•BS 4814
•BS 12828
•BS 7671 (IET) Wiring regulations.
This product complies with the requirements of the
following European Directives and Standards:

IMPORTANT: On 11 &
13kW models remove the
transportation support
Failure to do so could
damage the compressor.
11/13kW
Please remove the transportation
plate after installation
NOTE
The pictures and functions described in this manual
contain the (optional) backup heater components.
Pictures in this manual are for reference only, please
refer to the actual product.
HP40/50-4-1PHM 4kW 1-phase
HP40/50-5-1PHMB 5kW 1-phase
HP40/50-7-1PHMB 7kW 1-phase
HP40/50-8-1PHMB 8kW 1-phase
HP40/50-11-1PHMB 11kW 1-phase
HP40/50-13-1PHMB 13kW 1-phase
HP40/50-11-3PHMB 11kW 3-phase
HP40/50-13-3PHMB 13kW 3-phase
Fig. 1
Before leaving the factory, each module is tested on
the following items:
• Tightness of the heating circuit
• Electrical safety
• Tightness of the refrigerant circuit
Factory test
3

WARNING
Servicing shall only be performed as recommended by
the equipment manufacturer. Maintenance and repair
requiring the assistance of other skilled personnel shall
be carried out under the supervision of the person
competent in the use of ammable refrigerants.
DANGER
Indicates an imminently hazardous situation which if
not avoided, will result in death or serious injury.
WARNING
Indicates a potentially hazardous situation which if not
avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which if not
avoided, may result in minor or moderate injury.
It is also used to alert against unsafe practices.
NOTE
Indicates situations that could result in accidental
equipment or property damage.
i
The precautions listed here are divided into the
following types. They are important, so be sure to
follow them carefully.
INFORMATION
Read these instructions carefully before installation.
Keep this manual readily available for future reference.
Improper installation of equipment or accessories
may result in electric shock, short-circuit, leakage,
re or other damage to the equipment. Be sure to
only use accessories made by the supplier, which are
specically designed for the equipment and make sure
to get installation done by a professional.
All the activities described in this manual must be
carried out by a competent and qualied technician.
Be sure to wear adequate personal protection
equipment such as gloves and safety glasses
while installing the unit or carrying out maintenance
activities.
Contact your installer for further assistance.
Caution: Risk of re/ammable materials
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WARNING
CAUTION
CAUTION
CAUTION
CAUTION
This symbol shows that this appliance uses a ammable refrigerant. If the
refrigerant is leaked and exposed to an external ignition source, there is a risk of
re.
This symbol shows that the operation manual should be read carefully.
This symbol shows that service personnel should be handling this equipment with
reference to the installation manual.
This symbol shows that service personnel should be handling this equipment with
reference to the installation manual.
This symbol shows that information is available such as the operating manual or
installation manual.
Explanation of symbols displayed on the monobloc.
Meanings of DANGER, WARNING, CAUTION and
NOTE symbols.
1 Safety Precautions & Liabilities
1.1 Safety Precautions
4

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Make sure all wiring is secure. Use the specied wires
and ensure that terminal connections or wires are
protected from water and other dangers.
When wiring the power supply, form the wires so that
the front panel can be securely fastened. If the front
panel is not in place there could be overheating of the
terminals, electric shocks or re.
After completing the installation work, check to make
sure that there is no refrigerant leakage. Only a FGAS
qualied technician can carry out a full leak test.
Never directly touch any leaking refrigerant as it could
cause severe frostbite. Do not touch the refrigerant
pipes during and immediately after operation as the
refrigerant pipes may be hot or cold, depending on
the condition of the refrigerant owing through the
refrigerant piping, compressor and other refrigerant
cycle parts. Burns or frostbite are possible if you touch
the refrigerant pipes. To avoid injury, give the pipes
time to return to normal temperature or, if you must
touch them protective gloves must be worn.
Do not touch the internal parts (pump, etc.) during and
immediately after operation. The product can get very
hot or cold.
CAUTION
Earth the unit.
Earth resistance should be according to local laws and
regulations.
Do not connect the earth wire to gas or water pipes,
lightning conductors or telephone ground wires.
Incomplete earthing may cause electric shocks.
- Gas pipes: Fire or an explosion may occur if there is
a gas leak.
- Water pipes: Hard vinyl tubes are not effective
earths.
- Lightning conductors or telephone earth wires:
Electrical threshold may rise abnormally if struck by
a lightning bolt.
Install the electrical supply at least 3 feet (1 meter)
away from televisions or radios to prevent interference
or noise. (Depending on the radio waves, a higher
distance might be needed.)
Do not wash the unit. This may cause electric shocks
or re. The appliance must be installed in accordance
with national wiring regulations. If the supply wiring is
damaged, it must be replaced by a qualied person.
DANGER
Before touching electrical terminal parts, isolate from
the mains power.
When the service panel is removed, some components
are live.
Never leave the unit unattended during installation or
servicing when the service panel is removed.
Do not touch water pipes during or immediately after
operation as the pipes may be hot and could burn. To
avoid injury, give the pipework time to return to normal
temperature or be sure to wear protective gloves.
Do not touch any switch with wet ngers. Touching a
switch with wet ngers can cause electrical shock.
WARNING
Dispose of all plastic packaging bags so that children
will not play with them. Children playing with plastic
bags face danger of death by suffocation.
Safely dispose of packing materials such as nails and
other metal or wood parts that could cause injury.
Ask your installer or qualied personnel to perform
installation work in accordance with this manual. Do
not install the unit yourself. Improper installation could
result in water leakage, electric shocks, re or the unit
falling from its mount.
Be sure to use only specied accessories and parts
for installation work. Failure to use specied parts may
result in water leakage, electric shocks, re, or the unit
falling from its mount.
Install the unit on a at and level foundation that can
withstand its weight. Otherwise, it may cause damage
to the equipment and possible personal injury.
Perform specied installation work with full
consideration of strong wind, hurricanes, or
earthquakes. Improper installation work may result in
accidents due to equipment falling.
Make certain that all electrical work is carried out by
qualied personnel according to the local laws and
regulations and this manual using a separate circuit.
Insufcient capacity of the power supply circuit or
improper electrical construction may lead to electric
shocks or re.
Be sure to install an earth fault circuit interrupter
according to local laws and regulations. Failure to
install a ground fault circuit interrupter may cause
electric shocks and re.
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5

Conrm that the installation area (walls, oors, etc.)
has no concealed services such as water, electricity,
and gas, before wiring/pipes.
Before installation, check whether the user’s power
supply meets the electrical installation requirements
of unit (including reliable earthing, leakage, and
wire diameter electrical load, etc.). If the electrical
installation requirements of the product are not met,
the installation of the product is prohibited until the
supply is rectied.
When installing multiple heat pumps in a centralised
manner please conrm the load balancing of the
power supply. Please ensure that any phase balancing
is carried out by a relevant qualied person and to
relevant standard.
The product must be installed in such a manner that it
is xed rmly. Where necessary, reinforcement of the
installation site must be carried out.
NOTE
About Fluorinated Gases
- This heat pump unit contains uorinated gases.
For specic information on the type of gas and the
amount, please refer to the relevant label on the unit
itself. Compliance with national gas regulations must
be observed.
- Installation, service, maintenance and repair of this
unit must be performed by a qualied competent
person.
- Product uninstallation and recycling must be
performed by a qualied competent person.
- See Chapter 2: Important Information About The
Refrigerant.
Do not install the unit in the following places:
- Where there is mist of mineral oil, oil spray or
vapors. Plastic parts may deteriorate, and cause
them to come loose or water to leak.
- Where corrosive gases (such as sulphurous acid
gas) are produced. Where corrosion of copper pipes
or soldered parts may cause refrigerant to leak.
- Where there is machinery which emits
electromagnetic waves. Electromagnetic waves
can disturb the control system and cause equipment
malfunction.
- Where ammable or combustion gases may leak,
where carbon bre or ignitable dust is suspended in
the air or where volatile ammables such as paint
thinner or gasoline are handled. These types of
gases might cause a re.
- Where the air contains high levels of salt such as
near the ocean (less than 3km (1.8 miles) from the
coastline).
- Where voltage uctuates a lot
(maximum deviation of 15%), such as in factories.
- In vehicles or vessels.
- Where acidic or alkaline vapors are present.
This appliance can be used by children 8 years old
and above and persons with reduced physical, sensory
or mental capabilities or lack of experience and
knowledge if they are supervised or given instruction
on using the unit in a safe manner and understand
the hazards involved. Cleaning and user maintenance
should not be done by children without supervision.
Children should be supervised to ensure that they do
not play with the appliance.
DISPOSAL: Do not dispose of this product as unsorted
municipal waste. Collection of such waste separately
for special treatment is necessary. Do not dispose of
electrical appliances as municipal waste, use separate
collection facilities. Contact your local goverment for
information regarding the collection systems available.
If electrical appliances are disposed of in landlls
or dumps, hazardous substance can leak into the
groundwater and enter the food chain, damaging your
health and well-being.
The wiring must be performed by professional
technicians in accordance with national wiring
regulation and the circuit diagram. An all-pole
disconnection device which has at least 3mm
separation distance in all pole and a residual current
device (RCD) with the rating not exceeding 30mA shall
be incorporated in the xed wiring according to the
national rule.
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1.2 Manufacturer's liability
1.3 Installer's liability
The installer is responsible for the installation and initial
commissioning of the appliance. The installer must
observe the following instructions:
Read and follow the instructions given in the manuals
provided with the appliance.
Install the appliance in compliance with prevailing
legislation and stand-ards.
Carry out initial commissioning and any checks
necessary. Explain the installation to the user.
If maintenance is necessary, warn the user of the
obligation to check the appliance and keep it in good
working order. Give all the instruction manuals to the
user.
1.4 User's liability
To guarantee optimum operation of the system, you
must abide by the following instructions:
Read and follow the instructions given in the manuals
provided with the appliance.
Call on a qualified professional to carry out installation
and initial com-missioning.
Get your installer to explain your installation to you.
Have the required inspections and maintenance carried
out by a quali-fied installer.
Keep the instruction manuals in good condition close to
the appliance.
Our products are manufactured in compliance with the
requirements of various Regulations applicable. They
are therefore delivered with the marking and any
documents necessary. In the interests of the quality of
the products, we strive constantly to improve them. We
therefore reserve the right to modify the specifications
given in this document.
Our liability as manufacturer may not invoked in the
following cases.
Failure to abide by the instructions on installing the
appliance. Failure to abide by the instructions on using
the appliance. Faulty or insufficient maintenance of the
appliance.
7

The refrigerant inside the unit is ammable and toxic.
If the refrigerant leaks in a room and comes in contact
with re from a burner, heater, or cooker, it may result
in re or the formation of a harmful gas. When a leak
is detected, turn off any combustible heating devices,
ventilate the room and contact the dealer from which
you purchased the unit.
Do not use the unit until a qualied installer conrms
that the portion from which the refrigerant leaked is
repaired.
When installing, relocating, or servicing the heat pump,
use only the specied refrigerant (R32) to charge the
refrigerant lines. Do not mix it with any other refrigerant
and do not allow air, liquids or other gases to remain in
the lines.
Use tools and pipe components especially designed
for use with R32 refrigerant.
Use copper pipes deoxidized with phosphorus to carry
the refrigerant.
Store the refrigerant connection pipes away from dust
and humidity (risk of damage to the compressor).
Apply refrigerant oil to the ared parts to facilitate
tightening and improve the seal.
Protect the heat pump components, including the
insulation and structural elements. Do not overheat the
pipes as brazed components may cause damage.
Protect pipe-work from physical damage.
Insulate the pipes to reduce heat losses to a minimum.
CAUTION
Inspection and maintenance operations must be
carried out at least once a year, by a qualied
professional.
Refrigerant leakage checks must be performed.
This product contains R32, a uorinated greenhouse
gas (volume of Global Warming Potential: 675). Do not
vent refrigerant to the atmosphere.
Compliance with national regulations shall be
observed.
Only qualied professionals are authorized to carry out
installation, maintenance, repair or removal work on
the appliance and the heating installation. They must
respect prevailing local and national regulations during
tting, installation and maintenance of the installation.
All work on the refrigeration circuit must be done by a
F-Gas qualied professional, according to prevailing
codes of practice and safety in the profession
(recovery of the refrigerant, brazing under nitrogen).
By qualied professional, we mean a person who has
the qualications pertaining to this refrigerant handling
and piping work as stipulated by the local laws and
regulations, and who has been trained in matters
relating to refrigerant handling and piping work.
Before working on the refrigeration circuit, switch off
the appliance and wait a few minutes. Certain items
of equipment such as the compressor and the pipes
can reach temperatures in excess of 100°C and high
pressures, which may cause serious injuries.
CAUTION
Do not use means to accelerate the defrosting process
or to clean, other than those recommended by the
manufacturers.
The appliance shall be stored in a room without
continuously operating ignition sources (for example:
open ames, an operating gas appliance or an
operating electric heater).
Do not pierce or burn.
Be aware that refrigerants may not contain an odour.
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Model
4kW
5kW
7kW
8kW
11kW
13kW
Refrigerant/kg
1.40
1.40
1.40
1.40
1.75
1.75
Tonnes CO2 equivalent
0.95
0.95
0.95
0.95
1.18
1.18
Factory charged refrigerant volume in the unit
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2 Important information about the refrigerant
8

A domestic hot water tank (with or without booster
heater) can be connected to the unit.
The requirement of the tank is different for different
unit and material of heat exchanger.
Room thermostat can be connected to the unit (room
thermostat should be kept away from heating source
when selecting the installation place).
An optional solar kit can be connected to the unit.
These units are used for heating applications and
domestic hot water tanks. They can be combined
with fan coil units, oor heating applications, low
temperature high efciency radiators, domestic hot
water tanks and solar kits, which are all eld supplied.
A wired controller is supplied with the unit.
You have the option to purchase an optional backup
heater. It can increase the heating capacity during cold
outdoor temperature. The backup heater also serves
as a backup in case of malfunctioning.
NOTE
Maximum length of communication wiring between the
indoor unit and the controller is 50m.
Power cords and communication wiring must be laid
out separately. They cannot be placed in the same
conduit otherwise it may lead to electromagnetic
interference. Power cords and communication wiring
should not come in contact with the refrigerant pipe
so as to prevent the high temperature pipe from
damaging the wiring.
Communication wiring must use shielded lines.
Including indoor unit to outdoor unit PQE line, indoor
unit to controller ABXYE line.
1 Heat pump capacity.
2 Required heating capacity (site dependent).
3 Additional heating capacity provided by backup
heater.
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Tbivalent Outdoor temperature
Capacity/Load
3
2 1
Temperature
probe(T5)
Coil
Outlet
Tank booster
heater (TBH)
Inlet
Tank
Model
Volume of tank/L
Heat exchange
area/m2
(Stainless steel
coil)
Heat exchange
area/m2
(Enamel coil)
Recommended
Minimum
Minimum
4/5kW
100~250
1.4
2.0
7/8kW
150~300
1.4
2.0
11/13kW
200~300
1.6
2.5
Room thermostat (eld supplied)
Solar kit for domestic hot water tank (eld supplied).
Domestic hot water tank (eld supply)
Fig. 3
The Tank booster heater (TBH) should be installed
below the temperature probe (T5) (Fig. 3).
The heat exchanger (coil) should be installed below
the temperature probe (Fig. 3).
It is recommended to limit the distance between the
outdoor unit and the tank to 10 metres.
Fig. 2
3 General Introduction
9

In DHW mode, the water owing temperature (TW_
out) range in different outdoor temperature (T4) is
listed below:
Temperature is listed in °C. IBH/AHS is internal
Backup Heater/Additional Heating source.
The unit has a frost protection that uses the heat pump
and the optional backup heater to keep the water
system safe from freezing in all conditions. Unless
power failure or lock out should occur (see 9.4 Water
piping).
In heating mode, the water owing temperature
(TW_out) range in different outdoor temperature (T4)
is listed below:
If IBH/AHS setting is valid, only IBH/AHS turns on;
If IBH/AHS setting is invalid, only heat pump turns on,
limitation and protection may occur during heat pump operation.
Operation range by heat pump with possible limitation and
protection.
Heat pump turns off, only IBH/AHS turns on.
Maximum inlet water temperature line for heat pump operation.
T4
35
30
24
19
5
0
5 12 25 40 45 50 55 60 65
-15
-20
-25
TW_out
5 12 25 40 45 50 55 60 65
35
43
30
24
19
5
0
-15
-20
-25
T4
TW_out
If IBH/AHS setting is valid, only IBH/AHS turns on;
If IBH/AHS setting is invalid, only heat pump turns on,
limitation and protection may occur during heat pump operation.
Operation range by heat pump with possible limitation and
protection.
Heat pump turns off, only IBH/AHS turns on.
Maximum inlet water temperature line for heat pump operation.
Outlet water (Heating mode)
Outlet water (Cooling mode)
Domestic hot water
Ambient temperature
Water pressure
Water ow
+12 ~ +65°C
+5 ~ +25°C
+12 ~ +60°C
-25 ~ +43°C
1-3 bar (0.10-0.30 MPa)
0.40 ~ 0.90m3/h
0.40 ~ 1.25m3/h
8kW 0.40 ~ 1.65m3/h
10kW 0.40 ~ 2.10m3/h
12kW 0.70 ~ 2.50m3/h
16kW 0.70 ~ 3.00m3/h)
4kW
5kW
7kW
8kW
11kW
13kW
Operation range
Fig. 4
Fig. 5
10

* Contact your supplier for more details about
availability.
4.1 Accessories supplied with the unit 4.2 Additional accessories available from Baxi
Installation Fittings
Shape
Shape
Name
Installation, user and service manual
(this book)
User operations manual
Installer operation manual
Technical data manual
Y-shape lter
Thermistor for domestic hot water
tank or zone2 water ow or buffer
tank
Drain Hose
Energy label
Tighten belt for customer wiring use
ADEY Magnetic lter
Wired controller
Name
Thermistor for buffer tank (Tbt1)
Extension wire fo r Tbt1
Thermistor for Zone 2 ow temp.
(Tw2)
Extension wire for Tw2
Thermistor for solar temp.(Tsolar)
Extension wire for Tsolar
Backup heater:3kW or 4 .5kW
Buffer tank
Water temperature thermistor
3 port valve
Mounted feet
Quantity
1
1
1
1
1
1
1
1
2
3
1
1
M
4 Accessories
Quantity
1
1
1
1
1
1
1
1
1
1
3
11

A A
C
A
C
B
A
B
The position of centre of gravity for different units can
be seen below.
4/5kW
7/8/11/13kW
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Be sure to conrm the model name and the serial
number of the unit. They are pasted on the side panel
of the unit body.
Due to relatively large dimensions and heavy weight,
the unit should only be handled using lifting tools with
slings. The slings can be tted into foreseen sleeves
at the base frame that are made specically for this
purpose.
CAUTION
To avoid injury, do not touch the air inlet or aluminum
ns of the unit.
Do not use the grips in the fan grills to avoid damage.
The unit is top heavy! Prevent the unit from falling due
to improper inclination during handling.
Before Installation
Handling
Model
4/5kW 1-phase
7/8kW 1-phase
11/13kW 1-phase
11/13kW 3-phase
A (mm)
370
410
370
280
B (mm)
540
580
605
605
C (mm)
190
280
245
245
The hook and center of
gravity of the unit should
be on a line in vertical
direction to prevent
improper inclination
≥1000mm
Make the rope go through
the lifting holes from both
the right and left sides in
the wooden collet
5 Before Installation
Fig. 7
Fig. 6
12

- Frequent frost acceleration in heating operation.
- Disruption of operation due to rise of high pressure.
- When a strong wind blows continuously on the front
of the unit, the fan can start rotating very fast until it
breaks.
In normal condition, refer to the gures below for
installation of the unit:
In case of strong wind towards the heat pump, the
orientation can be reversed. Turn the air outlet side
towards the building, fence or screen (B Fig. 8).
Make sure there is enough room to do the installation.
Set the outlet side at a right angle to the direction of
the wind (Fig. 9).
Prepare a water drainage channel around the
foundation to drain waste water away from the unit.
If water does not easily drain from the unit, mount the
unit on a foundation of concrete blocks etc. (the
height of the foundation should be about 100mm
(3.93in).
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•
WARNING
There is ammable refrigerant in the unit and it should
be installed in a well-ventilated site.
Select an installation site where the following
conditions are satised and one that meets with your
customer’s approval.
- Places that are well-ventilated.
- Places where the unit does not disturb neighbours.
- Safe places which can bear the unit’s weight and
vibration and where the unit can be installed at an
even level.
- Places where there is no possibility of ammable
gas or product leak.
- The equipment is not intended for use in a
potentially explosive atmosphere.
- Places where servicing space can be well ensured.
- Places where the unit’s piping and wiring lengths
come within the allowable ranges.
- Places where water leaking from the unit cannot
cause damage to the location (e.g. in case of a
blocked drain pipe).
- Places where rain can be avoided as much as
possible.
- Do not install the unit in places often used as a work
space. In case of construction work (e.g. grinding
etc.) where a lot of dust is created, the unit must be
covered.
- Do not place any object or equipment on top of the
unit (top plate).
- Do not climb, sit or stand on top of the unit. Do not
locate under trees or bushes as foilage can block
the heat exchanger/evaporator affecting the units
performance.
- Be sure that sufcient precautions are taken in case
of refrigerant leakage according to relevant local
laws and regulations.
When installing the unit in a place exposed to strong
wind, pay special attention to the following.
Strong winds blowing against the unit’s air outlet
causes a short circuit (suction of discharge air), and
this may have the following consequences:
- Deterioration of the operational capacity.
B
C
C
A
Prevailing
wind
Water drainage
channel
6 Installation Site
Fig. 8
Fig. 9
Model
4/5kW
7/8/11/13kW
A (mm)
>300
>300
B (mm)
>1000
>1500
C (mm)
500
500
13

When installing the unit in a place frequently exposed
to snow, pay special attention to elevate the
foundation as high as possible.
Refer to ‘Handling’ in section 4 Before installation.
NOTE
When operating the unit in cold climates, be sure to
follow the instructions described below.
Never install the unit at a site where the suction side
may be exposed directly to wind.
Avoid locations where the unit can be covered by
snow. In areas where heavy snow fall is anticipated,
special precautions such as raising the installation
location or installing a hood on the air intake must be
taken to prevent the snow from blocking the air intake
or blowing directly against it. This can reduce the
airow and a malfunction may result.
An outdoor air thermistor is located at the back of the
outdoor unit to measure temperature. To avoid it being
heated by direct sunlight, you can for example install
the outdoor unit in the shade or under a eld-supplied
canopy.
•
6.1 Selecting a location in cold climates
6.2 Selecting a location in hot climates
14

7/8/11/13kW
4/5kW
7/8/11/13kW
NOTE
It is necessary to install an electrical trace heating if
water cannot drain out in cold weather even if the big
drain hole has opened.
4/5kW
Check the strength and level of the installation ground
so that the unit may not cause any vibrations or noise
during its operation.
In accordance with the foundation drawing in the
gure, x the unit securely by means of foundation
bolts. (Prepare four sets each of ø 10mm Expansion
bolts, nuts and washers which are readily available in
the market.)
Screw in the foundation bolts until their length is 20
mm from the foundation surface.
7 Installation Precautions
7.1 Dimensions
7.2 Installation requirements 7.3 Drain hole position
EE
BB
DC DC
A
A
FF
G
Model
4/5kW
7/8/11/13kW
A (mm)
1295
1385
B (mm)
429
526
C (mm)
105
60
D (mm)
225
221
E (mm)
692
845
F (mm)
161
182
G (mm)
/
81
•
•
•
Fig. 10
>100mm
Solid
Base
Rubber
Mounting
Feet
Soakaway
Solid Base
Rubber
Mounting
Feet
Heated
Condensate
Pipe to Drain
>100mm This drain hole is
covered by a rubber
plug. If the small drain
hole can not meet the
drainage requirements,
the big drain hole can
be used at the same
time.
Drain holes
Drain hole
15

2. In case obstacles exist behind the outlet side.1. In case obstacles exist in front of the outlet side.
In case of installing multiple units in lateral connection
per row.
7.4 Servicing space requirements
7.4.1 In case of stacked installation
7.4.2 In case of multiple-row installation
(for roof top use, etc.)
A
>500mm
>200mm
>500mm
>300mm
>200mm
Model
4/5kW
7/8/11/13kW
A (mm)
>1000
>1500
A
B2
B1
C
>500mm
>500mm
Model
4/5kW
7/8/11/13kW
A (mm)
>2500
>3000
B1 (mm)
>1000
>1500
B2 (mm)
>300
C (mm)
>600
Fig. 11
Fig. 12
Fig. 13
16

The application examples given below are for
illustration only.
8 TYPICAL APPLICATIONS
8.1 Application 1
Fig. 14
T
DHW
ROOM
CONTROL
BACK-UP
HEATER / AHS
ASSURE
ASHP
CYLINDER
A
B
4
5
9
3
1
2
8
4.1
4.2
4.2
12
11
10
16
15
4.3
No.
1
2
3
4
4.1
4.2
4.3
5
7
No.
8
9
10
11
12
13
14
15
16
Assembly unit
Main unit
User interface
SV1: 3-way valve (Field supply)
Buffer tank (Field supply)
Automatic air purge valve
Drainage valve
Tbt1: Buffer tank upper temperature sensor (Optional)
P_o: Outside circulation pump (Field supply)
P_d: DHW pipe pump (Field supply)
Assembly unit
T5: Domestic water tank temperature sensor (Accessory)
Expansion vessel (Field supply)
Domestic hot water tank (Field supply)
Y Strainer (Filter)
Shut-off valve (Field supply)
Filling valve (Field supply)
Drainage valve (Field supply)
Bypass valve (Field supply)
Magnetic lter
17

NOTE
Make sure to t the (SV1) 3-way valve correctly.
For more details, (see 9.7.6 Connection for other
components).
At extremely low ambient temperature, the domestic
hot water is exclusively heated by TBH, which assures
that the heat pump can be used for space heating with
full capacity.
Details on domestic hot water tank conguration for
low outdoor temperatures (T4DHWMIN) (see 10.5.1
DHW Mode Setting).
The ON/OFF signal and operation mode and
temperature setting are set on the user interface. P_o
keeps running as long as the unit is ON for space
heating, SV1 keeps OFF.
The ON/OFF signal and target tank water temperature
(T5S) are set on the user interface. P_o stops running
as long as the unit is ON for domestic water heating,
SV1 keeps ON.
The BUH function is set on the hydraulic main board
(see 10.1 DIP switch settings overview)
When the BUH is set to be valid only for heating mode,
BUH can be turned on in the following ways:
a. Turn on the BUH via BACKHEATER function on the
user interface;
b. BUH will be turned on automatically if initial water
temperature is too low or target water temperature
is too high at low ambient temperature. P_o keeps
running as long as the BUH is ON, SV1 keeps OFF.
When the BUH is set to be valid for heating mode
and DHW mode. In heating mode, BUH control is
same as part 1); In DHW mode, BUH will be turned
on automatically when the initial domestic water
temperature T5 is too low or the target domestic water
temperature is too high at low ambient temperature.
P_o stops running, SV1 keeps ON.
When the BUH is set to be valid, M1M2 can be set to
be valid on the user interface. In heating mode, BUH
will be turned on if M1M2 dry contact closes. This
function is invalid in DHW mode.
The TBH function is set on the user interface.
(see 10.1 DIP switch settings overview)
When the TBH is set to be valid, TBH can be turned
on via TANKHEATER function on the user interface; In
DHW mode, TBH will be turned on automatically when
the initial domestic water temperature T5 is too low or
the target domestic water temperature is too high at
low ambient temperature.
When the TBH is set to be valid, M1M2 can be set to
be valid on the user interface. TBH will be turned on if
M1M2 dry contact closes.
CAUTION
The highest outlet water temperature may reach 70°C,
please beware of burning.
Space heating
Back up Heater Control (BUH)
TBH (tank booster heater) control
1)
2)
3)
1)
2)
18

ROOM THERMOSTAT Control for Space heating or
cooling need to be set on the user interface. It can be
set in three ways: MODE SET/ONE ZONE/DOUBLE
ZONE. The monobloc can be connected to a high
voltage room thermostat and a low voltage room
thermostat.
The unit ON/OFF is controlled by the room thermostat,
cooling or heating mode and outlet water temperature
are set on the user interface. System is ON when any
“HL” of all the thermostats closes. When all “HL” open,
system turns OFF.
When the system is ON, which means any “HL” of all
the thermostats closes, P_o starts running; When the
system is OFF, which means all “HL” close, P_o stops
running.
8.2 Application 2
8.2.1 One zone control
Space heating
The circulation pumps operation
Fig. 15
1
RT1
4.2
4.2
12
11 16
49
5
4.1
4.3
2
15
No.
1
2
4
4.1
4.2
5
9
11
No.
12
13
14
16
19
21
RT 1...7
FHL
1...n
Assembly unit
Main unit
User interface
Buffer tank (Field supply)
Automatic air purge valve
Drainage valve
P_o: Outside circulation pump (Field supply)
Expansion vessel (Field supply)
Y Strainer (Filter)
Assembly unit
Shut-off valve (Field supply)
Filling valve (Field supply)
Drainage valve (Field supply)
Magnetic lter
Collector/distributor (Field supply)
Thermostat transfer board (Optional)
Room thermostat (Field supply)
Floor heating loop (Field supply)
19

Cooling or heating mode is set via the room
thermostat, water temperature is set on the user
interface.
When any ‘CL’ of all the thermostats close, system will
be set at cooling mode.
When any ‘HL’ of all the thermostats close and all ‘CL’
open, system will be set at heating mode.
When the system is in cooling mode, which means any
‘CL’ of all the thermostats closes, SV2 keeps OFF, P_o
starts running.
When the system is in heating mode, which means
one or more ‘HL’ close and all ‘CL’ open, SV2 keeps
ON, P_o starts running.
8.2.2 Mode set control
Space heating
The circulation pumps operation
1)
2)
1)
2)
Fig. 16
1
4.2
4
4.1
4.3
5
9
RT1
RT2
4.212
2
15
11 16
No.
1
2
4
4.1
4.2
5
9
11
12
13
No.
14
16
19
20
21
22
RT 1...7
FHL
1...n
FCU
1...n
Assembly unit
Main unit
User interface
Buffer tank (Field supply)
Automatic air purge valve
Drainage valve
P_o: Outside circulation pump (Field supply)
Expansion vessel (Field supply)
Y Strainer (Filter)
Shut-off valve (Field supply)
Filling valve (Field supply)
Assembly unit
Drainage valve (Field supply)
Magnetic lter
Collector/distributor (Field supply)
Bypass valve (Field supply)
Thermostat transfer board (Optional)
SV2: 3-way valve (Field supply)
Room thermostat (Field supply)
Floor heating loop (Field supply)
Fan coil unit (Field supply)
20