Argo AG4HP061PH User manual

Air/water Heat pump
Monobloc
Installation Manual
MODELS:
AG4HP061PH
AG4HP081PH
AG4HP101PH
AG4HP121PH
AG4HP141PH
AG4HP161PH
AG4HP103PH
AG4HP123PH
AG4HP143PH
AG4HP163PH
Thank you for choosing an Argoclima heat pump. Please read this manual carefully before using the unit and
retain it for future reference.
Rev.01-09/22

To Users
Thank you for selecting Argo products. Please read this instruction manual carefully before installing and using the
product, so as to master and correctly use the product. In order to guide you to correctly install and use our product and
achieve expected operating effect, we hereby instruct as below:
(1) This equipment should be installed, operated or maintained by the qualified servicemen who have had specific
training. During operation, all safety issues covered in the labels, User's Manual and other literature should be
followed strictly. This equipment is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a person responsibility for their safety. Children should be
supervised to ensure that they do not play with the appliance.
(2) This product has gone through strict inspection and operational test before leaving the factory. In order to avoid
damage due to improper disassembly and inspection, which may impact the normal operation of unit, please do
not disassemble the unit by yourself. You can contact with the special maintenance center of our company if
necessary.
(3) For personal injury or property loss and damage caused by improper operation such as improper installation and
debugging, unnecessary maintenance, violation of related national laws and rules and industrial standard, and
violation of this instruction manual, etc., we will bear no liability.
(4) When the product is faulted and cannot be operated, please contact with our maintenance center as soon as
possible by providing the following information.
•Contents of nameplate of product (model, cooling/heating capacity, product No., ex-factory date).
•Malfunction status (specify the situations before and after the error occurs).
(5) All the illustrations and information in the instruction manual are only for reference. In order to make the product
better, we will continuously conduct improvement and innovation. We have the right to make necessary revision
to the product from time to time due to the reason of sales or production, and reserve the right to revise the
contents without further notice.
(6) The final right to interpret for this instruction manual belongs to Argoclima Spa.

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Contents
Diagram of the Operating Principle..................................................................................14
Radiant floor heating and DHW with 3-way valve and tank ............................................15
Heating and cooling with fan coils and DHW with 3-way valve and tank.......................16
Radiant floor heating with single thermal zone and DHW with 3-way valve and tank ..17
Operating Principle of the Unit .........................................................................................18
Model Line-Up....................................................................................................................19
Main Components..............................................................................................................20
Installation Guideline of Monobloc Unit...........................................................................21
Instruction to installation .............................................................................................21
Installation of monobloc unit .......................................................................................21
Selection of installation location of monobloc unit .......................................................................................21
Outline dimension of monobloc unit ............................................................................................................21
Space requirements for installation.............................................................................................................22
Precautions on installation of monobloc unit ...............................................................................................22
Water connections of monobloc unit ...........................................................................................................23
Usage of rubber rings..................................................................................................................................23
Control panel wire connection.....................................................................................................................24
Safety operation of flammable refrigerant....................................................................................................24
Installation of Hydraulic Unit ............................................................................................25
Available external static pressure of outlet..................................................................25
Expansion vessel........................................................................................................27
Ambient temperature and leaving water temperature upper limit ................................27
Remote Air Temperature Sensor......................................................................................28
Thermostat.........................................................................................................................29
Control Panel .....................................................................................................................30
2-Way Valve........................................................................................................................31
3-Way Valve........................................................................................................................32
Other Thermal....................................................................................................................33
Optional Electric Heater ....................................................................................................34
Gate-controller...................................................................................................................35
Charging and Discharging of Refrigerant........................................................................35
Leak Detection Methods.............................................................................................36
Installation of Insulated Water Tank.................................................................................36
Installation measure....................................................................................................36
Requirements on water quality....................................................................................38

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Electric wiring work.....................................................................................................38
Wiring principle General principles.............................................................................................................38
Specification of power supply wire and leakage switch...............................................................................39
Wring Diagram...................................................................................................................40
Control board..............................................................................................................40
Electric wiring .............................................................................................................46
Wiring principle............................................................................................................................................46
Terminal board............................................................................................................................................46
Commissioning..................................................................................................................49
Check before startup ..................................................................................................49
Test run......................................................................................................................50
Daily Operation and Maintenance.....................................................................................51
Recovery ....................................................................................................................52
Decommissioning .......................................................................................................52
Notice before seasonal use ........................................................................................53
Disassembly of the unit.....................................................................................................54

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Safety Notices (Please be sure to abide)
WARNING: If not abide strictly, it may cause severe damage to the unit or the people.
NOTE: If not abide strictly, it may cause slight or medium damage tothe unit or thepeople.
This sign indicates that the operation must be prohibited. Improper operation may cause
severe damage or death to people
This sign indicates that the items must be observed. Improper operation may cause
damage to people or property.
NOTE
After receipt of the unit, check it for appearance, unit model compared with your desire and
attachments.
Design and installation work of the unit must be performed by authorized personnel according
to applicable laws and regulations and this Instruction.
After installation work, the unit cannot be energized unless there is not any problem in check.
Ensure periodical clean and maintenance of the unit after normal operation of the unit for longer
life and reliable operation.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualified persons in order to avoid a hazard.
The appliance shall be installed in accordance with national wiring regulations.
This product is a kind of comfort air conditioning, and is not allowed to be installed where there
are corrosive, explosive and inflammable substances or smog; otherwise it would lead to operation
failure, shortenedservice life,five hazard or even severe injuries. Specialair conditions are required
for where mentioned above.
INFORMATION FOR CORRECT DISPOSAL OF THE PRODUCT IN ACCORDANCE WITH THE EUROPEAN
DIRECTIVE 2012/19/EU
At the end of its working life this equipment must not be disposed of as an household waste. It must be taken to special
local community waste collection centres or to a dealer providing this service. Disposing of electrical and electronic
equipment separately avoids possible negative effects on the environment and human health deriving from an
inappropriate disposal and enables its components to be recovered and recycled to obtain significant savings in energy
and resources.In order to underline the duty to dispose of this equipment separately, the product is marked with acrossed-
out dustbin.

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WARNING
Once abnormality like burning
smell occurs, please cut off the
power supply immediately and
then contact with service center.
Don't operate the unit with wet
hand.
Before
installation, please see if
the voltage of local place
accords with that on
nameplate of unit and
capacity of power supply,
power cord or socket is
suitable for input power of
this unit.
Otherwise, it may cause electric
shock.
If the abnormality still exists, the
unit may be damaged and
electric shock or fire may result.
Special circuit must be adopted
for power supply to prevent fire.
Be sure to pull out the power
plug and drain the indoor unit
and water tank when unit is not
in use for a long time.
Never damage the electric
wire or use the one which is
not specified.
Do not use octopus multipurpose
plug or mobile terminal board for
wire connection.
Otherwise, the accumulated dust
may cause overheating, fire or
freeze of water tank or coaxial
heater exchanger in winter.
Otherwise, it may cause
overheating or fire.

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Before cleaning please cut off the
power supply.
The power supply must adopt
special circuit with leakage
switch and enough capacity.
User cannot change power
cord socket without prior
consent. Wiring working
must be done by
professionals. Ensure good
earthing and don't change
earthing mode of unit.
Otherwise, it may cause electric
shock or damage.
Earthing: the unit must be
earthed reliably! The earthing
wire should connect with special
device of buildings.
Never insert any foreign matter
into outdoor unit to avoid
damage. And never insert your
hands into the air outlet of
outdoor unit.
Don't attempt to repair the
unit by yourself.
Improper repair may cause
electric shock or fire, so you
should contact the service
center to repair.
If not, please ask the qualified
personnel to install.
Furthermore, don't connect earth
wire to gas pipe, water pipe,
drainage pipe or any other
improper places which
professional does not recognize.

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Don't step on the top of the unit
or place anything on it.
Never block the air inlet and
outlet of unit.
Keep pressurized spray,
gas holder and so on away
from the unit above 1m.
There is the danger of fall of
things or people.
It may reduce efficiency or cause
stop of the unit and even fire.
It may cause fire or
explosion.
Please note whether the
installation stand is firm enough
or not.
Unit should be installed at the
place with good ventilation to
save energy.
When there is not water in
water tank, never power the
unit on to run.
If damaged, it may cause fall of
the unit and injury of people.

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WARNING
Do not use means to accelerate the defrosting process or to clean, other than those
recommended by the manufacturer. Should repair be necessary, contact your nearest authorized
service centre. Any repairs carried out by unqualified personnel may be dangerous. The appliance
shall be stored in a room without continuous operating ignition sources. (for example: open flames,
an operating gas appliance or an operating electric heater.) Do not pierce or burn.
Appliance shall be installed, operated and stored in a room with a floor area larger than Xm
.(Please refer to table "a” in section of " Safety Operation of Inflammable Refrigerant” for space X.)
Appliance filled with flammable gas R32. For repairs, strictly follow manufacturer’s instructions
only. Be aware that refrigerants not contain odour. Read specialist’s manual.
If a stationary appliance is not fitted with a supply cord and a plug, or with other means for
disconnection from the supply mains having a contact separation in all poles that provides full
disconnection under overvoltage category III conditions, the instructions shall state that means for
disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.
This appliance can be used by childrenaged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in a safe way and understand the
hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall
not be made by children without supervision.
The appliance shall be stored in a well-ventilated area where the room size corresponds to the
room area as specified for operation.
The appliance shall be stored in a room without continuously operating open flames (for
example an operating gas appliance) and ignition sources (for example an operating electric
heater).
The appliance shall be stored so as to prevent mechanical damage from occurring.

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NOTE
Appliance filled with flammable gas R32.
Before use the appliance, read the owner’s manual first.
To realize the function of the air conditioner unit, a special refrigerant circulates in the system.
The used refrigerant is the fluoride R32, which is specially cleaned. The refrigerant is flammable
and inodorous. Furthermore, it can leads to explosion under certain conditions. But the flammability
of the refrigerant is very low. It can be ignited only by fire.
Compared to common refrigerants, R32 is a non polluting refrigerant with no harm to the
ozonosphere. The influence upon the greenhouse effect is also lower. R32 has got very good
thermodynamic features which lead to a really high energy efficiency. The units therefore need a
less filling.
Before installation, please check if the adopted power is accordance with that listed on
nameplate, and check the safety of power.
The unit shall contact with the supply mains by a full disconnection device under overvoltage
category III.
Before using, please check and confirm if wires and water pipes are connected correctly to
avoid water leakage, electric shock or fire etc.
Don’t operate the unit with wet hand, and don’t allow children to operate the unit.
The On/off in the instruction is for the operation to on and off button of PCB for users; cut off
power means to stop supplying power to the unit.
Don’t directly expose the unit under the corrosive ambient with water or dampness.
Don’t operate the unit without water in water tank. The air outlet/inlet of unit cannot be blocked
by other objects.
The water in unit and pipeline should be discharged if the unit is not in use, to prevent the water
tank, pipe line and water pump from frost-cracking.
Never press the button with sharp objects to protect manual controller. Never use other wires
instead of special communication line of the unit to protect control elements. Never clean the
manual controller with benzene, thinner or chemical cloth to avoid fading of surface and failure of
elements. Clean the unit with the cloth soaked in neutral eradicator. Slightly clean the display
screen and connecting parts to avoid fading.
The power cord must be separated with the communication line.
Any person who is involved with working on or breaking into a refrigerant circuit should hold a
current valid certificate from an industry-accredited assessment authority, which authorises their
competence to handle refrigerants safely in accordance with an industry recognised assessment
specification.
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 flammable refrigerants.

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Maximum and minimum water operating temperatures
Item
Minimum water operating
temperatures
Maximum water
operating temperatures
Cooling
5°C
25°C
Heating
25°C
65°C
Water heating
40°C
80°C
Maximum and minimum water operating pressures
Item
Minimum water operating
pressures
Maximum water
operating pressures
Cooling
Heating
0.05MPa
0.25MPa
Water heating
maximum and minimum entering water pressures.
Item
Minimum entering water
pressures
Maximum entering water
pressures
Cooling
Heating
0.05MPa
0.25MPa
Water heating
The range of external static pressures at which the appliance was tested (add-on heat pumps,
and appliances with supplementary heaters, only); If the supply cord is damaged, it must be
replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a
hazard.
The appliance is intended to be permanently connected to the water mains and not connected
by a hose-set.
If there is any question, please contact with local dealer, authorized service center, agencies
or our company directly.

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NOTE
If any hot work is to be conducted on the refrigeration equipment or any associated parts,
appropriate fire extinguishing equipment shall be available to hand. Have a dry powder or CO2fire
extinguisher adjacent to the charging area.
Where electrical components are being changed, they shall be fit for the purpose and to the
correct specification. At all times the manufacturer’s maintenance and service guidelines shall be
followed. If in doubt consult the manufacturer’s technical department for assistance.
The following checks shall be applied to installations using flammable refrigerants:
- the charge size is in accordance with the room size within which the refrigerant containing
parts are installed;
- the ventilation machinery and outlets are operating adequately and are not obstructed;
- if an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the
presence of refrigerant;
- marking to the equipment continues to be visible and legible. Markings and signs that are
illegible shall be corrected;
- refrigeration pipe or components are installed in a position where they are unlikely to be
exposed to any substance which may corrode refrigerant containing components, unless the
components are constructed of materials which are inherently resistant to being corroded or are
suitably protected against being so corroded.
Repair and maintenance to electrical components shall include initial safety checks and
component inspection procedures. If a fault exists that could compromise safety, then no electrical
supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be
corrected immediately but it is necessary to continue operation, an adequate temporary solution
shall be used. This shall be reported to the owner of the equipment so all parties are advised.
Initial safety checks shall include: that capacitors are discharged: this shall be done in a safe
manner to avoid possibility of sparking; that no live electrical components and wiring are exposed
while charging, recovering or purging the system; that there is continuity of earth bonding.

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During repairs to sealed components, all electrical supplies shall be disconnected from the
equipment being worked upon prior to any removal of sealed covers, etc. If it is absolutely
necessary to have an electrical supply to equipment during servicing, then a permanently operating
form of leak detection shall be located at the most critical point to warn of a potentially hazardous
situation.
Particular attention shall be paid to the following to ensure that by working on electrical
components, the casing is not altered in such a way that the level of protection is affected. This
shall include damage to cables, excessive number of connections, terminals not made to original
specification, damage to seals, incorrect fitting of glands, etc.
Ensure that apparatus is mounted securely.
Ensure that seals or sealing materials have not degraded such that they no longer serve the
purpose of preventing the ingress of flammable atmospheres. Replacement parts shall be in
accordance with the manufacturer’s specifications.
NOTE The use of silicon sealant may inhibit the effectiveness of some types of leak detection
equipment.
Intrinsically safe components do not have to be isolated prior to working on them.
Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that
this will not exceed the permissible voltage and current permitted for the equipment in use.
Intrinsically safe components are the only types that can be worked on while live in the
presence of a flammable atmosphere. The test apparatus shall be at the correct rating.
Replace components only with parts specified by the manufacturer. Other parts may result in
the ignition of refrigerant in the atmosphere from a leak.
Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp
edges or any other adverse environmental effects. The check shall also take into account the
effects of ageing or continual vibration from sources such as compressors or fans.
Under no circumstances shall potential sources of ignition be used in the searching for or
detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not
be used.
Equipment shall be labelled stating that it has been de-commissioned and emptied of
refrigerant. The label shall be dated and signed. Ensure that there are labels on the equipment
stating the equipment contains flammable refrigerant

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Diagram of the Operating Principle

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Radiant floor heating and DHW with 3-way valve and tank
Warning: basic diagram! It does NOT supersede the specific system project!
This system diagram does NOT include the necessary safety and shut-off elements for a correct installation.
Please meet the relevant laws and standards.

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Heating and cooling with fan coils and DHW with 3-way valve and tank
Warning: basic diagram! It does NOT supersede the specific system project!
This system diagram does NOT include the necessary safety and shut-off elements for a correct installation.
Please meet the relevant laws and standards.

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17
Radiant floor heating with single thermal zone and DHW with 3-way valve and
tank
Warning: basic diagram! It does NOT supersede the specific system project!
This system diagram does NOT include the necessary safety and shut-off elements for a correct installation.
Please meet the relevant laws and standards.

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Operating Principle of the Unit
DC Inverter Air to Water Heat Pump is composed of outdoor unit, indoor unit and internal-fan coil water tank. Operation
functions:
(1) Cooling;
(2) Heating;
(3) Water heating;
(4) Cooling +water heating;
(5) Heating+ water heating;
(6) Emergency mode;
(7) Fast hot water;
(8) Holiday mode;
(9) Forced operation mode;
(10) Quiet mode;
(11) Disinfection mode;
(12) Weather-dependent operation;
(13) Floor debugging;
(14) Air removal of the water system;
(15) Other thermal
Cooling: in cooling mode, the refrigerant is condensed in the outdoor unit and evaporated in the indoor unit. Via the
heat exchange with water in the indoor unit, the temperature of water decreases and it releases heat while the refrigerant
absorbs heat and evaporates. With the help of wired controller, the outflow temperature can meet the user’s requirement.
Through the control of valve, the low-temperature water in the system is connected with indoor fan coil and underground
pipe, and exchanges heat with the indoor air so that the indoor temperature decreases to the required range.
Heating: in heating mode, the refrigerant evaporates in the outdoor unit and is condensed in the indoor unit. Via the
heat exchange with water in the indoor unit, the water absorbs heat and its temperature increases while the refrigerant
releases heat and is condensed. With the help of wired controller, the outflow temperature can meet the user’s requirement.
Through the control of valve, the high-temperature water in the system is connected with indoor fan coil and underground
pipe, and exchanges heat with the indoor air so that the indoor temperature increases to the required range.
Water heating: in water heating mode: the refrigerant evaporates in the outdoor unit and is condensed in the indoor
unit. Via the heat exchange with water in the indoor unit, the water absorbs heat and its temperature increase while the
refrigerant releases heat and is condensed. With the help of wired controller, the outflow temperature can meet the user’s
requirement. Through the control of valve, the high-temperature water in the system is connected with the coil pipe of
bearing water tank, and exchanges heat with the water in the water tank so that the temperature of water tank increases
to the required range.
Cooling + water heating: when cooling mode exists together with the water heating mode, the user can set the priority
of these two modes based on the needs. The default priority is heat pump. That is under the default setting, if cooling mode
exists together with the water heating mode, the heat pump gives priority to cooling. In that case, water heating can only
realized with e-heater of the water tank. Inversely, the heat pump gives priority to water heating and switches to cooling
after finishing water heating.
Heating + water heating: when heating mode exists together with the water heating mode, the user can set the priority
of these two modes based on the needs. The default priority is heat pump. That is under the default setting, if heating
mode exists together with the water heating mode, the heat pump gives priority to heating. In that case, water heating can
only realized with e-heater of the water tank. Inversely, the heat pump gives priority to water heating and switches to
heating after finishing water heating.
Emergency mode: this mode is only available for heating and water heating. When the outdoor unit stops due to
malfunction, enter the corresponding emergency mode; as to heating mode, after entering the emergency mode, heating
can only be realized through e-heater of the indoor unit. When the setting outflow temperature or indoor temperature is
reached, the e-heater of indoor unit will stop running; as to water heating mode, the e-heater of indoor unit stops while the
e-heater of water tank runs. When the setting temperature or water tank is reached, the e-heater will stop running.
Fast hot water: at the fast hot water mode, the unit runs according to the water heating control of heat pump and the
e-heater of water tank runs at the same time.
Forced operation mode: this mode is only used for refrigerant recovery and debugging for the unit.
Holiday mode: this mode is only available for heating mode. This mode is set to keep indoor temperature or leaving
water temperature in a certain range, so as to prevent water system of the unit from freezing or protect certain indoor
articles from freezing damage. When the outdoor unit stops due to malfunction, the two e-heaters of the unit will run.
Disinfection mode: in this mode, the water heating system can be disinfected. When starting up the disinfection
function and setting corresponding time to meet the requirement of disinfection mode, the function will start. After the
setting temperature is reached, this mode will terminate.
Weather-dependent operation: this mode is only available for space heating or space cooling. In Weather-dependent
mode, the setting value (remote room air temperature or leaving water temperature) is detected and controlled
automatically when the outdoor air temperature is changed.
Quiet mode: Quiet mode is available in cooling, heating and water heating mode. At the quiet mode, the outdoor unit
will reduce the running noise via automatic control.
Floor commissioning: this function is intended to preheat the floor periodically for the initial use.

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Air removal of the water system: this function is intended to replenish water and remove air in the water system to
make the equipment run at the stabilized water pressure.
Solar water heater: when the condition for starting the solar water heater is satisfied, the solar heater will start to heat
the circulation water. Then the heated water will go to the water tank and exchange heat with water in it. At any condition,
the solar water heater will be given priority for startup so as for energy conservation.
Other thermal: when the outdoor temperature is lower than the set point for starting other thermal and the unit is under
the error condition and the compressor has stopped for three minutes, the other thermal will start to supply heat or hot
water to the room.
Model Line-Up
Model
Heating 1
Power supply
Capacity, kW
Power Input, kW
COP, W/W
AG4HP061PH
6.0
1.111
5.40
230 VAC,
1-ph, 50 Hz
AG4HP081PH
8.2
1.54
5.32
AG4HP101PH
10.2
2.02
5.05
AG4HP121PH
12.0
2.43
4.94
AG4HP141PH
14.2
2.99
4.75
AG4HP161PH
15.7
3.45
4.55
AG4HP103PH
10.2
2.06
4.95
400 VAC,
3-ph, 50 Hz
AG4HP123PH
12.0
2.49
4.82
AG4HP143PH
14.2
3.09
4.60
AG4HP163PH
15.7
3.57
4.40
Model
Cooling 2
Power supply
Capacity, kW
Power Input, kW
EER, W/W
AG4HP061PH
6.5
1.275
5.10
230 VAC,
1-ph, 50 Hz
AG4HP081PH
8.3
1.56
5.32
AG4HP101PH
10.2
2.00
5.10
AG4HP121PH
12.0
2.45
4.90
AG4HP141PH
13.7
3.00
4.57
AG4HP161PH
15.5
3.60
4.31
AG4HP103PH
10.2
2.13
4.79
400 VAC,
3-ph, 50 Hz
AG4HP123PH
12.0
2.61
4.60
AG4HP143PH
13.9
3.32
4.19
AG4HP163PH
15.4
4.05
3.80
Notes
(a) 1Capacities and power inputs are based on the following conditions: Indoor Water Temperature 30°C/35°C,
Outdoor Air Temperature 7°C DB/6°C WB;
(b) 2Capacities and power inputs are based on the following conditions: Indoor Water Temperature 23°C/18°C,
Outdoor Air Temperature 35°C DB/24°C WB.
(c) In caso di installazione di resistenze ausiliarie, il dimensionamento dei cavi deve essere calcolato da un tecnico
qualificato.
Operating conditions:
Mode
Heat Source Side Temperature (°C)
User Side Temperature (°C)
Heating
- 25~35
20~65
Cooling
-15~48
5~25
Water Heating
- 25~45
40~55/80