Version: 01/2017
HEAT
PUMP
for swimming pool water
heating & cooling
HP 1700 SPLIT
Installation and user manual
Installation and user manual HP900/1200 SPLIT PREMIUM
Version: 01/2017 Page 2 /36
HEAT PUMP MICROWELL HP
Thank you for purchasing Microwell swimming pool heat pump.
Before you use this device, it is necessary to carefully read the entire
Installation and user manual. It is not allowed to commence the heat
pump installation or operation unless full content of this Installation
and user manual is understood and acknowledged. Please keep the
Installation and user manual available in the case of any future
reference is required. Please provide this information also to each
user of the device. Please mind local regulations in your country
regarding installation and usage of this heat pump which are valid in
addition to this User manual.
Contents
1. INTRODUCTION ............................................................................................................................... 4
1.1 Product description ................................................................................................................. 4
1.2 Package checking ..................................................................................................................... 5
1.3 Waste disposal information .................................................................................................... 5
2. SAFETY MEASURES .......................................................................................................................... 6
2.1 Electrical safety ........................................................................................................................ 6
2.2 Usage precautions ................................................................................................................... 6
2.3 Handling precautions .............................................................................................................. 7
3. TECHNICAL SPECIFICATION ............................................................................................................. 8
3.1 Technical data .......................................................................................................................... 8
3.2 Swimming pool water parameters .......................................................................................... 9
3.3 Heat pump dimensions ........................................................................................................... 9
3.4 Description of the basic parts .................................................................................................. 9
3.5 Security and control systems ................................................................................................ 10
3.6 Block wiring diagram of the PCB board – Display on condensing unit .................................. 12
3.7 Block wiring diagram of the PCB board – Display on water unit ........................................... 13
4. HEAT PUMP INSTALLATION AND CONNECTION ............................................................................ 14
4.1 Positioning
............................................................................................................................. 14
4.2 Connection to water filtration circuit .................................................................................... 15
4.3 Needed components for connection to water circuit ........................................................... 16
4.4 Electrical connection ............................................................................................................. 18
4.5 Refrigerant circuit connection ............................................................................................... 18
4.6 Flaring work ........................................................................................................................... 20
4.7 Seaside installation ................................................................................................................ 22
4.8 Multiple heat pump connection ............................................................................................ 23
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4.9 Separate water circuit ........................................................................................................... 24
4.10 Circulation pump connection ................................................................................................ 24
5. REGULATION .................................................................................................................................. 25
6. ACCESSORIES ................................................................................................................................. 30
6.1 Winter module ...................................................................................................................... 30
6.2 Heat exchanger frost protection ........................................................................................... 30
6.3 Condensate tray defrost ........................................................................................................ 30
6.4 Protection cover .................................................................................................................... 30
7. HINTS AND TIPS ............................................................................................................................. 31
7.1 Water condensation .............................................................................................................. 31
7.2 Winterizing ............................................................................................................................ 31
7.3 Heat pump season start ........................................................................................................ 32
7.4 Failure reports ....................................................................................................................... 33
7.5 Troubleshooting – save time and money .............................................................................. 34
8. MAINTANANCE & WARRANTY ...................................................................................................... 35
8.1 Maintanance .......................................................................................................................... 35
8.2 Warranty ................................................................................................................................ 36
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HEAT PUMP MICROWELL HP
1. INTRODUCTION
In your hands you hold probably the most advanced and the most efficient heat pump currently
available on the market. This heat pump provides warm water in your pool at lowest possible cost.
The heat pump is manufactured in tightest accordance with related strict standards and norms, in
order to provide high quality operation and long-term reliability.
This Installation and user manual contains all the necessary information about the installation,
operation and maintenance of the heat pump. P lease read this Installation and user manual carefully
before you start to use this product. The manu facturer is n ot responsible for any personal or property
damage due to the improper installation, use or maintenance that is not in accordance with this User
Manual.
This Installation and user manual is an inseparable part of t his product; therefore it must be kept in
good condition and must accompany the heat pump.
1.1 Product description
The heat pump is designed exclusively for swimming pool water heating or cooling and maintaining its
temperature on the requested level. Other appropriate application is water temperature conditioning
for fish tanks, wine ciders or horse cooling facilities. These applications should be discussed with local
installer or distributor. Any other form of application is considered inappropriate.
The heat pump achieves the highest efficiency at 15÷35°C air temperature. At ambient air
temperatures lower than -5°C the efficiency of the device decreases and at the temperatures higher
than +40°C the heat pump ca n get overhe a ted w hich may result in its malfunct io n, damage or failure.
Do not use the product out of the designated operational air temperature range which is stated in
section
3.1 Technical data
.
This heat pump is designed for swimming pools with up to 70 m
3
- HP 1700 of pool water volume. For
proper operations there must be water flow through the exchanger of the heat pump (within water
filtration circuit) in the range of 686 m
3
/h.
The heat pump enables heat ga in from the external air surrounding the swimming pool through the
compression – expansion cycles of the heat-carrying liquid. The air is driven by a fan through the
evaporator where it will deliver its heat to the heat-carrying liquid (the air is being cooled at the same
time). The heat-carrying liquid is then delivered to the spirals of the exchanger by the compressor
which pressurises it and thus heats it up. In these spira ls, the heat-carrying liqui d delivers its heat to
the swimming pool water. From the exchanger there is a cooled liquid flowing to the expansion valve
or capillary where its pressure decreases and it gets cooled down rapidly at the same time. This
cooled liquid flows to the evaporator again where it gets heated by the flowing air. The whole process
runs fully automatically and is monitored by the pressure and temperature sensors. The same
principle is applied when heat pump operates in cooling mode.
Using simple language, a heat pump is able to extract the heat/cold that is present in ambient
environment and leveraged pass it into the pool water. When heating, higher the ambient air
temperature is, more free energy can the heat pump extract and thus reach higher efficiency. At
favourable conditions you pay around 15% of heat, i.e. 85% of heat is free. Please review below
drawing of different ambient air conditions with subsequent efficiencies.
The heat pump efficiency grows by the increasing surrounding air temperature.
It takes some days to achieve the requested swimming pool water temperature. This time period
depends on heat loss and heat gain balance of your pool.
Example factors of heat losses: poor pool construction, used materials, usage of cover, air – water
temperature relationship, fresh water refilling, filtration, etc.
Example factors of heat gains: intensity of sun, winds, orientation of pool, air – water temperature
relationship, etc.
In order to avoid heat loss when the swimming pool is not being used, it is highly advised to use
pool’s cover.
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Ideal water temperature for external pools is considered at levels from 27° to 32°C. This may change
based on particular demands of the user. When setting the desired air temperature higher than 32°C
please review the material characteristics of your pool parts. High water temperature can damage
these materials and contribute to creation of algea. Manufacturer, distributor and reseller do not bear
responsibility resulting from inappropriate heat pump usage.
1.2 Package checking
The unit was delivered in carton box on a wooden palette. Do not accept the package if it shows
signs of damage. If the package appears intact, please unpack the unit and check the content. It
should include the following:
1. The heat pump – condensing unit, the heat exchanger – indoor unit. Please see section
3.4
Description of the basic parts to see how the heat pump looks like
2. This Installation and user manual
3. Four rubber silent blocks
1.3 Waste disposal information
When using this heat pump in the European countries, the following information must be
followed:
DISPOSAL:
Do not dispose this product as unsorted municipal waste. It is prohibited to
dispose this heat pump in domestic / household waste. It is prohibited to dispose this
appliance into forests or natural landscape. This could lead into local soil pollution.
Collection of such waste must be treated individually.
1. The municipality has established a collection system where electronic waste can be disposed.
DISPOSAL POSSIBILITIES:
2. When buying a new product, the retailer or the manufacturer may take back the
old appliance free of charge.
3. Old appliance may contain valuable resources which could be sold to scrap
material dealers.
4. Disposal of packaging materials such as carton box or plastic / bubble foil can be
recycled.
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2. SAFETY MEASURES
It is necessary to follow instructions in this Installation and user manual and local regulations in
your country that regulate the installation and usage of this device. Incorrect, improper or
operations contradictory to this Installation and user manual may lead to an injury or property
damage and will lead to loss of warranty. To prevent injury or property damage the following
instructions must be followed:
2.1 Electrical safety
v The device operates at dangerous electrical current.
v Only authorized person with particular electro-technical qualification can manipulate with unit.
v Danger of electrical shock.
v Do not exceed the required power supply.
v Do not turn the device on that shows signs of possible damage such as broken packaging, broken or
otherwise damaged unit’s chassis or cover, smoke, smell, etc.
v It is necessary to use appropriate Residual current circuit breaker (RCD) for connection of the heat
pump to main power supply.
v Do not manipulate with the device with wet hands.
v Do not clean the device with water.
v Before cleaning the device, switch off the circuit breaker of the unit’s power supply.
v Installation, service or repair must be performed by qualified technician.
v When the device is not intended to be used for a longer time, we recommend switching the circuit
breaker of the unit’s power supply off.
v Unit must be installed in vertical position to avoid condensate water to enter electrical part of the
unit.
v It is forbidden to install the unit close to devices that may cause electrical or frequency disturbance
such as welding machines, motors or rotors, WIFI/WLAN routers or repeaters.
v It is forbidden to alter electrical installation of the device. It is also forbidden to alter any other part
or functionality of the device.
2.2 Usage precautions
Do not cover or block the intake or exhaust opening / ventilator and evaporator covers. It
is forbidden to block or cover the intake or exhaust openings with clothes, towels,
buckets, canoes, trees, etc. Such action would lead to a decrease of needed airflow. That
would result in heat pump inefficiency and underperformance, eventually to heat pump
overeat with subsequent security turning off, malfunction, failure or damage. Especially
during bloom months it is highly advised to keep the evaporator fins clean.
v Do not climb up on or sit on the unit.
v Do not place any objects on the top of the unit (e.g. boxes, flower vases, etc.).
v Do not spray any flammable substances into the equipment; this might lead to fire.
v Do not clean the equipment with aggressive cleaning agents, this might lead to damage or
deformations.
v When cleaning plastic parts do not use any cleaning agents unsuitable for plastic (household
cleaning agents, solvents, bleaching agents, benzene, diluents, rough cleaning powder, cresol,
chemical agents). Instead, sweep the heat pump cover with a soft cloth or a sponge.
v Never throw or insert any objects into any hose or opening.
v The cover is made of metal. Do not manipulate with lighted cigarette, cigarette ashes, or any other
kind of fire in vicinity to this part.
v Use this device exclusively for the intended purpose, as described in the attached instruction
manual. Do not use parts which are not recommended.
v Never block the air opening of the product. Protect the air openings from clogging by particles.
v Do not drink or use the condensate water drained from the unit. Do not return the water back to the
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swimming pool. The water may be contaminated with bacteria.
v Children are not allowed to operate, touch or play with the unit.
v Children are not allowed to manipulate with packaging, plastic / bubble foil. Risk of suffocation!
v Prevent the children from injury or harm caused by any manipulation with the unit, its parts or its
packaging. Small parts like screws may be swallowed and cause harm to health.
v Do not leave the children in the swimming pool / at the swimming pool unattended.
v The positioning of the heat pump must be in accordance with the STN 33 2000-7-702 standard, i.e.
it must be placed at least 3,5 m from the swimming pool´s external border.
v For heating/cooling the swimming pool by the heat pump, the filtration pump must run and the
water must flow through the heat exchanger.
v Never turn on the heat pump if it is without water and if the filtration device is not operating.
v Protect the heat pump from freezing. Eliminate the water from the filtration and from the heat
pump’s water heat exchanger and prepare the product for the winter time.
v At low surrounding ambient temperature level (below 10°C) and high relative air humidity level (e.g.
after rain, during the night, etc.), the evaporator may get iced up. Heat pump will automatically
defreeze itself. Its operations or functionality is not harmed but the efficiency decreases.
v Manufacturer does not bear any responsibility concenring damages caused by inappropriate heat
pump selection, installation or application.
v Do not pressurize the water heat exchanger higher than 0.15MPa (1.5bar). By pressure of 0.2MPa
(2bar) the water heat exchanger gets irreversibly damaged. It is advised to install a security valve
with pressure threshold at 0.15MPa (1.5Bar) before the heat exchanger.
v Do not apply or use water of higher temperature than 40°C in water heat exchanger. Water
temperature above 45°C irreversibly damages the water heat exchanger.
v Manufacturer does not bear any responsibility concerning damages caused by inappropriate heat
pump performance and/or model selection, installation or application. Heat pump is considered
undersized in the case it works usually and in long-term more than 18 hours daily. General warranty
void applies for damages on the device or other damages if the device works usually in long-term
more than 18 hours daily.
v The heat pump must be correctly sized for its application.
v Refrigerant connection between the water and the condensing unit must comply with local
refrigerant regulations. Typically, the refrigerant circuit must be sealed. Manufacturer does not bear
any responsibility for damages caused by incorrect refrigerant works.
2.3 Handling precautions
v Leave the condensing unit in vertical upright position for at least 2 hours before the installation.
v Transport in lying position or turning the device over may harm the compressor resulting in unit’s
malfunction, failure or damage and will lead to loss of warranty.
v The device must be handled with care and special attention avoiding any mechanical damage.
v It is forbidden to apply any improper mechanical force onto the unit. This may cause mechanical
damage to the device.
v It is forbidden to let the device fall freely onto the ground or any solid surface resulting in hard
impact.
v Please notify your reseller or distributor if you suspect that the unit was delivered damaged. Unit
may seem to work well at start but small damage can make the unit go out-of-order in short time.
In such case the unit must be inspected and approved for further use by your reseller.
v Please notify your reseller or distributor if directly after installation you suspect that unit is not
working in perfect order.
v In the case of device failure resulting from improper handling or mechanical damage (impact, hit,
fall, etc.), the manufacturer reserves the right to evaluate the continuity of warranty.
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3. TECHNICAL SPECIFICATION
3.1 Technical data
HP 1700 SPLIT
Air temperature/water temperature
26° C/26 °C
63%rh
25° C/10° C
35%rh
Heating output (kW) 17,01 14,7
Power consumption (kW) 3,47 3,10
Coefficient of Performance (C.O.P.) 4.9 4.7
Recommended swimming pool volume (m3) (with
a cover/without a cover)
70/50
Energy class A
Operating temperature – air (°C) -5(-15)... +40
Optional swimming pool water temperature range (°C) +5... +40
Air flow (m3/h) 3780
Recommended water flow (m3/h)/pressure loss (kPa) 6-8/5-15
Feeding voltage/Protection (V/A) 230/20A C
Current-carrying capacity/max. current (A) 14.8/18
Coverage/Protection IP X4/by grounding
Heat exchanger Titanium
Acoustic pressure level dB (A) 1m/2m/4m/8m 56/50/43/39
Water circuit connection (mm/inch, thread) 50/ 6/4“ internal
Refrigerant circuit connection (condensing/water unit) 10mm,18mm
Max. length of refrigerant connection horizontally (m) 20
Max. length of refrigerant connection vertically (m) 15
Max. recommended water pipe length (m) 30
Max. operational water pressure 0.15MPa (1.5bar)
Net unit dimensions (w/h/d) – condensing unit 1125/707/453
Gross unit dimensions (w/h/d) – condensing unit 1150/843/480
Net/Gross weight (kg) – condensing unit 100/90
Net unit dimensions (w/h/d) – water unit without box 650/370/400
Gross unit dimensions (w/h/d) – water unit without
700/555/550
Net/Gross weight (kg) – water unit without box 12/19
Net unit dimensions (w/h/d) – water unit with box 750/370/430
Gross unit dimensions (w/h/d) – water unit with box 790/560/580
Net/Gross weight (kg) – water unit with box 28/35
Refrigerant/filling weight (type/kg) R410A/2.00; 4.2t CO2 ekv.
Refrigerant addition above 10m 40g/1m
* The manufacturer reserves the right to change the parameters without notice.
** In the case Winter module, condensate tray antifreeze or heat exchanger frost protection is installed.
The refrigerant circuit is filled with R410A refrigerant that consists of 2 com ponents (R32/R125).
These components are considered as fluorocarbon greenhouse gases. The product contains
fluorocarbon greenhouse gases listed in the Kyoto Protocol:
R410A with the global warning potential (GWP) 1720 (R-32/125 50/50) CH2F2 + CF3CHF2.
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3.2 Swimming pool water parameters
The heat pump is designed for heating the swimming pool water. Although the water heat exchanger
is made from the most durable titanium, in order to ensure long term reliability of the heat pump the
pool water must be in accordance with the related sanitary requirements.
The limit values for the heat pump operation are the following:
- pH value ranging from 6.8 to 7.9,
- total chlorine amount not exceeding 3 mg/l,
- salt content 6% wt/wt.
Should you have different values of pH, chlorine or salt please try to apply appropriate agents or
contact your swimming pool builder to resolve the situation. Above mentioned values are
recommended for pools in general.
It is also advised to keep the water hardness on the lower limit of the optimal range, i.e. closely above
8 °N.
3.3 Heat pump dimensions
3.4 Description of the basic parts
CONDENSING UNIT
3.4
Note: The illustrations and
descriptions found in this
Installation and user manual are
not binding. The manufacturer
reserves the right to make
corrections or changes without
notice.
870
546
320
360
425
655
2
1
3
5
4
6
8
9
7
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Legend: 1 – Protecting grates of the fan (air outlet) / ventilator cover
2 – Cover / metal chassis
3 – Control panel (if on condensing unit)
4 – Valve for refilling the refrigerant (under the cover)
5 – Power supply connection (underneath the plastic cover)
6 – Refrigerant connection IN (water unit OUT) – liquid (heating mode)*
7 – Refrigerant connection OUT (water unit IN) – gas (heating mode)*
8 – Evaporator (air inlet)
*- in cooling mode applies in reversed order
WATER UNIT – Hydro kit (wi th box)
1
– Heat exchanger body
2 – Water inlet connection hub
3 – Water outlet connection hub
4 – Refrigerant connection OUT (condensing unit IN) – liquid (heating mode)*
5 – Refrigerant connection IN (condensing unit OUT) – gas (heating mode)*
6 – Flow switch
7 – Temperature sensor water in (T2)
8 – Temperature sensor water out (T5)
9 – Electro box
10 – Heat exchanger box
*- in cooling mode applies in reversed order
Please note that above pictures may differ from your a c tual heat pump make.
3.5 Security and control systems
In order to ensure long term reliability and fully automatic operations of the heat pump, the pump is
pump is equipped with following security systems:
Temperature based control of the heat pump operation:
¾ The heat sensor placed on the heat exchanger, ensures switching off of the heat pump when
the requested water temperature is reached. The normal operating mode gets renewed if the
water temperature in the exchanger drops by 3 °C (manufacturing setting) below the
requested value.
Safety systems:
3
1
4
8
2
6
7
10
6
10
9
10
5
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¾ Water flow sensor (flow switch) placed on the water heat exchanger inlet.
The water flow sensor switches on the heat pump when there is water flowing through the
heat pump exchanger, and switches it off when the water flow stops or is too high or low.
¾ Sensor of the minimal and maximal gas pressure in the refrigerant circuit.
¾ Heat sensor on the refrigerant outlet from the compressor.
Time protection
¾ The unit is equipped with a switching time delaying device with a preset 3 minutes delay
period for protecting the control elements in the circuit and eliminating repeated restarts and
contactor vibrations. This time delay will automatically restart the unit app. 3 minutes after
every single interruption of the heat pump operation. Even if there is only a short interruption
of the power supply, the time protection will get activated so the unit cannot start the
operation earlier than the pressures in the refrigerant circuit of the heat pump get balanced.
Interruption of the power supply during the pause time does not influence the time interval.
Antifreeze protection
¾ If an ambient air temperature is low (e.g. below 7°C), it is normal to have ice creations on the
evaporator of your heat pump. This is freezing condensated water. Your heat pump is
equipped with automatic defrosting.
¾ Manufacturer has preset th e conditions when automatic defrosting gets activated in order to
ensure optimal operations and performance of the heat pump. For more information please
refer to section 5.7 Setting of the operating parameters
and
section 7.2 Defrosting
.
¾ If your heat pump freezes up on often basis it is advised to reconsider the efficiency of heat
pump running (heating) in such conditions.
If a failure occurs to any of above systems there will be an error message shown on the display
starting with ‘EE’. Please check
section
7.5
Failure reports
of this Installation and user manual.
Warning:
Elimination or disabling from operation any of the control or security systems results in
warranty void.
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3.6 Block wiring diagram of the PCB board – Display on condensing
unit
FM
CM
Fan
Compressor
4-way
valve
OUT3 4 5 6 7
PCB board
OUT2
OUT1
CN4
CN6
CN7
CN2
Water flow sensor / Flow switch
Connector
A, B, C
Transformer
Display
L N 3 4
Compressor
capacitor
Fan
capacitor
Heat pump power
supply
L N
Circulation pump
connection
230VAC
max. 500W
Sensors
T4
Picture: Power supply connection of the
condensing unit, auxliary circulation pump
and 1-4 sensors of the water unit.
T3
T1
1 2 3 4
1 2 3 4
T2
T5
Picture: Four pin terminal connection of water
unit (1-4 sensor connection with condensing
unit).
Legend:
FM – Fan motor
CM - Compressor
OUT 1 – Compressor L
OUT 2 – Compressor N
OUT 3 – output of 4-way valve L
OUT 4 – output of 4-way valve
OUT 5 - fan L
OUT 6 – circulation pump L
Sensors:
T1 – Evaporator / defrosting
T2 – Inlet water temperature
T3 – Ambient air temperature
T4 – Compressor discharge
temperature
T5 – Outlet water temperature
/
W
ater flow sensor
/
w switch
2 3
4
T
2
T5
Notice: Manufacturer reserves the right to change electrical wiring without
notice.
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3.7 Block wiring diagram of the PCB board – Display on water unit
FM
CM
Fan
Compressor
4-way
valve
OUT3 4 5 6 7
PCB board
OUT2
OUT1
CN4
CN6
CN7
CN2
Water flow sensor / Flow switch
Connector A, B, C
Transformer
Display
L N 3 4
Compressor
capacitor
Fan
capacitor
Heat pump power
supply
L N
Circulation pump
connection
230VAC
max. 500W
Sensors
T4
Picture: Power supply connection of
the condensing unit, auxliary
circulation pump, 1-4 sensors of the
water unit and A-B-C connector of
the control display.
T3
T1
1 2 3 4
1 2 3 4
T2
T5
Picture: Four pin terminal connection of water
unit (1-4 sensor connection with condensing
unit) and three pin terminal connection of the
control display.
Legend:
FM – Fan motor
CM - Compressor
OUT 1 – Compressor L
OUT 2 – Compressor N
OUT 3 – output of 4-way valve L
OUT 4 – output of 4-way valve
OUT 5 - fan L
OUT 6 – circulation pump L
Sensors:
T1 – Evaporator / defrosting
T2 – Inlet water temperature
T3 – Ambient air temperature
T4 – Compressor discharge
temperature
T5 – Outlet water temperature
A B C
A B C
ater flow sensor
/
tch
low sw
i
Connector A, B, C
ispla
y
2 3
4
2 3
4
T2
T5
B C
B C
Notice: Manufacturer reserves the right to change electrical wiring without
notice.
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4. HEAT PUMP INSTALLATION AND CONNECTION
4.1 Positioning
The heat pump is designed for outdoor installation. It must be installed on a stable and levelled base.
The pump can be installed in vertical position only.
a)
The condensing unit should be installed in spaces where it can
have sufficient supply of fresh ambient air.
Do not install the
condensing unit in closed spaces with li mited air access
and where the air cannot circulate sufficiently. The air
inlet and outlet must be completely accessible. The condensing
unit should have minimal distance s from surrounding objects as
shown on picture on t he right. Do not put the condensing unit
near bushes or trees either, as these can also influence the air
access. Every single barrier of free air flow reduces the
efficiency of the heat pump and may lead to heat pump’s
malfunction, damage or failure.
b) Although the condensing unit is designed for exterior installation (sunlight, rain, snow) it is
suggested to make a shelter / roof in order to protect its metal parts and thus ensure long term
stability of color, metal chassis, etc.
c) Do not install the device near road networks, as increased concentration of dust gradually
decreases the heat exchange effectiveness.
d) When the condensing unit is in full heating operation, it generates considerably colder air than
ambient air temperature. It is thus advised not to install the condensing unit at places, where
cold air flow could cause any incon venience ( windows , terraces, e tc.). Also, do n ot place the a ir
outlet against the dominant winds.
e) The distance between the water unit and the conden sing unit can be max. 20m /HP900/ and
max. 30m /HP1200/ horizontally and max. 15m vertically (condensi ng unit above water unit).
Split heat pump was designed to provide with water temperature control of a pool and in the
meantime provide no visual and/or acoustic disturbance to a pool user. It is thus advised to
install the condensing unit away from the pool to a place where it will not be ‘seen and/or
heard’.
f) The condensing unit must be placed on a flat, stable and levelled surface. The pump housing
must be fixed to this surface with screws and rubber anti-vibration elements (silent blocks).
Rubber anti-vibration elements not only reduce the noise level of the heat pump, but also help
to eliminate the vibrations and thus they contribute to smoother heat pump operations and long
term reliability. Please note that the condensing unit should be installed above the closest
terrain level to allow the condensation water leak out of the heat pump. Please refer to
section
7.1 Water condensation
.
g) The surface of the evaporator consists of aluminum fins. The fins are soft and can get
mechanically damaged very easily. Please be careful when manipulating with the unit to avoid
any damage.
h) It is advised to install the condensing unit on a stand 300-500mm above surrounding
ground. Heat pump installed directly on a surrounding ground can by easily immersed into
snow and/or into frozen condensation. This can decrease heat pump’s efficiency and
performance and lead to heat pump malfunction, damage or failure.
Notice: Please discuss particular details of heat pump positioning and connection to the swimming
pool water circuit with your swimming pool builder, distributor or reseller!
Picture: Minimal distances from surrounding
objects.
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4.2 Connection to water filtration circuit
The heat pump must be connected to water circuit (filtration circuit) of the swimming pool in order to
provide desired heating/cooling performance. The water flow through the exchanger of the heat pump
must be in accordance with the designed value (
see chapter 3.1 Technical data
). Normally the heat
pump is connected through a by-pass. It is then possible to adjust the water flow accordingly as
filtration pumps may have different water flow performances.
The by-pass consists of 3 valves connected as shown in the picture below. Water normally flows from
the filtration pump (right side) to the swimming pool (left side) through Valve 1. Heat pump is
connected through Valve 2 (heat pump inlet) and Valve 3 (heat pump outlet).
Complete closure of Valves 2 and 3 with Valve 1 fully open means no water flow through the heat
pump which means no heating or cooling provided by the heat pump.
Complete closure of Valve 1 with Valve 2 and 3 fully open means ma ximum amount of water flowing
through the heat pump.
Normally the by-pass is set as shown on below picture.
The heat pump is equipped with 2 threads enabling the connection of input and output fitting (d50).
For connection with the fil tration circuit use the d50 PVC pipe or 50/38mm a dapters (6/4”). Please
refer
to section 3.4 Des cription of the basic parts
in order to make sure which thread is water input
and which water output. It is advised to apply lubricating oil on threads before tightening the
connection.
Please consider using fast connector for the heat pump inlet and outlet in order to make the
disconnection of the heat pump from the rest of the filtration circuit simple (fo r water draining from
the heat pump before winter time and for service purposes).
The heat pump must be connected t o the filtration circuit of the sw imming pool behind the filter a nd
in front of the device for water conditioning (automatic chlorine dozing machine, ozone machine).
For illustration please refer to Scheme: Connection of the split heat pump into the water
filtration circuit of the swimming pool on page 17.
Note: In case of using the automatic chlorine dozing machine in the filtration circuit it is
necessary to install a backward tita nium spring in fro nt of it. If this valve is miss ing, by shutting
down the filtration, the chlorine concentration around the heat pump exchanger may be
increased to critical level and exceed the allowable level (3 ppm) causing damages.
Back to the swimming
p
ool
From the filtration
pump / swimming
pool
Connection of the by-pass
VALVE
VALVE
VALVE
To the heat pump
From the heat pump
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4.3 Needed components for connection to water circuit
It is advised to use hose nut with external thread PN16 50 x 6/4” and a pressure hose D50 or PVC
pipe D50.
Particular component selection depends on individual condition at your pool. Your seller,
distributor or pool builder may decide on how the actual connection is performed. These
components are not part of heat pump package or delivery.
Important: For proper operations, there must be a water flow through the heat pump
exchanger in range of 4-6 m
3
/hour. In the
case of water flow exceeding 10m
3
/h the heat
pump will turn itself off and an error notice PL
will pop up. Repeated error notice or repeated
exposure of the heat pump to the water flow
higher than 8m
3
/h will cause irreversible
damage to flow switch with permanent error
notice PL. The heat pump will be turned off.
Please contact your distributor or service
department, the flow switch needs to be
replaced.
Picture: Pressure hose
D50
Picture: Hose nut with external thread PN16.
G=6/4” D=50mm
Picture: PVC pipe, various
dimesions
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Scheme: Connection of the split heat pump into the water filtration circuit of the
swimming pool
Note:
The manufacturer supplies the heat pump only. The other parts and components shown in the
picture are not included in heat pump package.
Swimming
pool
Skimmer
Chlorine
dozing
machine
Reversible
nozzle
Bottom
outlet
Filtration
pump
By-pass
valves
Technical
chamber
min. 3500mm
Heat pump
AIR unit
min.
500mm
Wall
Condensate
outlet
Heat pump
WATER unit
4 way
valve
Filtration
tank
Gas circuit piping
with sensor cables
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4.4 Electrical connection
I
IMPORTANT:
The electric connection of the heat pump can only be
performed by an authorized electrician in accordance with local electrical
standards and requirements.
WARNING:
The device operates at dangerous electrical current and
voltage.
DANGER:
Danger of electric shock!
a) The heat pump must be connected through a single circuit-breaker specified
in section 3.1
Technical data
for a particular model. The dimensioning of the power supply must be sufficient
(the suggested cross section of the conductors is
3 x 4 mm
2
). It is important to make sure and it
is nonconditionned requirement of the manufacturer to install the heat pump together with RCD
(Residual Circuit Breaker) with the actuating current up to 30mA. The power supply
characteristics (voltage, phase and frequency) must be in complete compliance with the operating
parameters of the device (please refer
to section 3.1 Technical data
).
b) The electric connection must be performed by an authorized electrician and must be in accordance
with the valid local electro-technical requirements.
c) The electric installation of the heat pump must be grounded appropriately. The grounding
distributor´s impedance must be in compliance with local valid electro-technical require me nts.
d) The electro connection of the heat pump must be simple, clear and comprehensible. It is highly
advised to have the connection performed in a way that would allow a third party electrician to
understand the connection at no time. Unnecessary cross connections are not appropriate.
e) It is important to carefully check and measure the electric installation before putting it into live
operation.
f)
The suggested protection is stated in the chart below:
Heat pump modell
HP 11700
RCD parameters
Current-carrying
capacity
25 C
Actuating current
30 mA
Circuit breaker characteristic
25 C
g)
Block wiring diagram is included in section
3.6 Block wiring diagram of the PCB board – Display
on condensing unit
or
3.7 Block wiring diagram of the PCB board – Display on water unit.
h) In order to protect the unit from weather anomalies it is recommended to install power surge
protection class 1. B+C+D.
Note: Should above points a) to h) be in contrary with local electrical standards or requirements,
please contact your distributor or reseller.
4.5 Refrigerant circuit connection
Split heat pump requires refrigerant circuit connection in order to operate normally. This is normally
done during installation of the pump as the pump comes with separate (not connected) condensing
and water units refrigerant-wise originally from the factory. Refrigerant circuit must be sealed.
IMPORTANT:
Please note that refrigerant connection can be performed by an
authorized person only. The person must have a valid refrigeration licence.
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Condensing un it is pre-precharged with refrigerant R410A from the fact ory. The amount is
based on order specification regarding length between water and condensing units. Normally the
condensing unit is pre-charged for 10m, 20m or 30m refrigerant connection by factory according to
order by your distributor or reseller. Should this have not been specified at order with the factory,
certain amount of refrigerant must be added to the system per each meter exceeding 10m of
connecting distance.
Please note that it is needed to add 40g of R410A per 1 meter
for excee ding connecting distances between condensing and
water unit.
Piping length and elevation
Heat
pump
model
Pipe size
Factory
pre-
charged
connection
distance
Max.
vertical
distance
(B)
Max.
distance
(A)
Additional
refrigerant
Gas (diameter)
Liquid
(diameter)
inch mm inch mm
HP1700
5/8 15.9 3/8 9.5 10m 15m 20m 40g/m
Refrigerant piping – condensing unit
1. Align the center of the pipings and
sufficiently tighten the flare nut by hand.
Please do so for both gas and liquid pipes.
Gas pipe has bigger diameter.
Liquid pipe has smaller diameter.
2. Tighten the flare nuts with torque
wrench until the wrench clicks. Please
make sure that the direction for tightening
follows the arrow on the wrench.
Please review below table for torque force.
Condensing
unit
Water unit
Water unit
Condensing unit
Gas
side
Liquid
side
Torque
wrench
Please use refrigerant copper pipes with
insulation only.
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Outside diameter
Torque
kgf m
inch mm
3/8 9.52 3.4-4.2
5/8 15.88 6.3-8.2
3. Forming and insulation the piping.
The pipes must be insulation and secured
with vinyl tapes. This is done in order to
prevent condensation on the piping.
It is highly advised to place the piping into
a plastic protector when installed in the
ground (soil).
On places where piping goes through a
wall or similar it is advised to use gum type
sealer or construction foam to seal the
openings.
3.1. Condensing unit below water unit
Tape the piping and interconnecting cable
from down upwards. Fix the tapped piping
with cable binder or equivalent onto the
exterior wall. It is important to make a trap
to prevent water from entering into the
electro installation of the condensing unit.
3.2 Condensing unit above water unit
Tape the piping and interconnecting cable
from down upwards. Fix the tapped piping
with cable binder or equivalent onto the
exterior wall. It is important to make a trap
to prevent water from entering into the
electro installation of the condensing unit.
On refrigerant side it is important to form
a syphon.
4.6 Flaring work
It is important to perform the flaring work correctly. This will have positive effect towards long-term
reliability and functionality of the heat pump. Defectiv e or incorrect flaring work is the most common
cause for gas leakage. Gas leakage results in continuous decrease of heat pump efficiency and
eventually leads into security turning off, malfunction, failure or damage.
Warranty does not cover any product, property or personal damages or
losses that are a result of incorrect flaring work, gas leakage, incorrect
welding work or improper material used.
When cutting the pipes and cables, please mind the following:
1. Measure the distance between the water and the condensing unit.
2. Cut the pipes a little longer than measured distance.
3. Cut the cable 1.5m longer than the pipe length.
Insulation
Interconnecting cable (1-4
sensors, A-B-C controller)
Gas
Liquid
Trap
Trap
ap
a
Syphon
Trap
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Pressure test / Air purging
Sometimes bits of air and moisture remains in the refrigerant circuit. If this is not treated, following
symptoms may appear on your heat pump:
1. Pressure in the system rises.
2. Operating current rises.
3. Heating or cooling efficiency drops.
4. Blockage of capillary tube due to frozen moisture resulting in complete failure of the heat
pump.
5. Corrosion of refrigerant circuit.
It is thus highly advised to take a leak test after evacuating the complete system. Leak test can be
performed with usual methods usi ng manifold valve a nd/or soap water. Air purging can be performed
by most commonly applied methods with vacuum pump. This Installation and user manual elaborates
vacuum pump method.
When the condensing unit is pre-charged with refrigerant we do not
recommend a pressure test using nitrogen.
Air purging with vacuum pump
1. Preparation
a. Check that each tube (both liquid and gas) between the water and condensing units
have been properly connected and all wiring for the test run has been completed.
b. Remove the service valve caps from both the gas and the liquid side on the
condensing unit. Please note that both the liquid and the gas side service valves on
CORRECT
INCORRECT
Even
Slanted
Uneven Rough
Smooth, shiny without scratches
Same length all around
INCORRECT FLARING
Inclined / Surface damaged / Cracked / Uneven
thickness
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the condensing unit are kept closed at this stage. Some heat pumps models have in
their refrigerant circuit only 1 service valve installed.
2. Lead test by vacuuming
a. Connect the charge hose end described in the preceding steps to the vacuum pump
to evacuate the tubing and wate r unit. Co nfirm the " Lo" knob o f the m ani fold val ve is
open. Then, run the vacuum pump. The operation time for evacuation varies with
tubing length and capacity of the pump. The following table shows the time required
for evacuation when using a vacuum pump of 30 gal/h power.
Required time for evacuation when 30
g
al/h vacuum pump model is used
Tube length less than 10m Tube length more than 10m
Minimum 10 minutes Minimum 15 minutes
b. When the desired vacuum is reached, close the "Lo" knob of the manifold valve and
stop the vacuum pump.
Finishing the job
1. With a service valve wrench (inbus wrench), turn the
valve stem of liquid side valve counter-clockwise to fully
open the valve.
2. Turn the valve stem of gas side valve counterclockwise to fully open the valve.
3. Remove the charging hoses.
4. Put service valve caps back at both gas and liquid side
service valves and fasten them tight. This completes air
purging with a vacuum pump and refrigerant works.
Please note that above flaring and refrigerant work
must be performed correctly with utmost care. Any
non-compliance with above may and will likely lead
into heat pump’s malfunction, failure or damage.
Such state means complete warranty void and
manufacturer; distributor or reseller cannot be
taken responsible in such case for any property or
personal damage or loss.
4.7 Seaside installation
Some condensing units are installed in locations close to sea or ocean. Please note that condensing
unit should not be installed in areas where corrosive gases, such as acid or alkaline gas, are present
or produced. Do not place the condensing unit where it can be exposed to direct sea wind (salty
wind). This would lead into corrosion. This could result in heat pump malfunction, failure or damage.
In any case you should avoid a direct exposure of sea wind. This can be done with the help of a
windbreak (e.g. small wall). The dimensions of the windbrea k should be 1.5 bigger than co ndensing
Manifold
valve
Water unit
Condensing
unit
Pressure
gauge
Open
Close
Vacuum pump
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unit in both height and width. Please leave 70cm of free space between the windbreak and the
condensing unit.
Please check your unit on regular basis and it is advised to clean the unit more than once a year with
water to remove salt particles.
Should you not be able to meet above, please speak to your distributor or reseller.
4.8 Multiple heat pump connection
Sometimes it is necessary to install multiple heat pumps into a single swimming pool in order achie ve
requested water temperature. Such installation is particularly advised on public venues where
continuity of operation / service is paramount.
Installation of the multiple heat pumps follows the same procedure as single heat pump described
above. It is only necessary to install the heat pumps in parallel con nection. Serial connection w ould
significantly decrease the heating/cooling capacity and efficiency o f heat pumps second in line. It is
advised to insert individual valves into connecting water piping for each single heat pump. This will
simplify the particular heat pump by-pass (disconnection) in the case of reinstallation, testing or
service. Please refer to below illustration.
Heat pump number 1
Heat p ump numbe r 2
Swimming pool
Filtration
tank
6-way
valve
Circulation
pump
By-pass for
heat pump
Main by-pass
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By multiple heat pump connection it is possible have all the heat pumps always on and running
when heating / cooling is required or to have the heat pumps gradually turning on and off so at
certain conditions (e.g. when requested water temperature is few degrees off the current water
temperature) not all the he at pumps would r un. Gradu al turning on and off is ach ieved by setting t he
different requested water temperatures on multiple heat pumps. For example:
Heat pump 1 30°C
Heat pump 2 28°C
4.9 Separate water circuit
In order to save energy it is possible to install the heat pump on a separate water circuit with small
circulation pump. This is appropriate in the case the power consumption of circulation pump for
filtration is considered high or simply if the whole filtration circuit running is not de sired when heating
/ cooling is required.
Normally swimming pool circulation pum ps with water flow performance between 4-6m
3
/h consume
up to 0.5kW of energy.
Such installation must be discussed with your swimming pool supplier, distributor or reseller.
4.10 Circulation pump connection
Manufacturer suggests conne ction of circulation pump throug h switching relay. Ple ase refer to below
drawing for more information.
Direct connection of the circulation pump as shown below is not advised.
HEAT PUMP
Circulation pump
connection
Switching phase 230VAC
Relay 230VAC
Circulation pump power supply
Circulation
pump
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5. REGULATION
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Note:
The manufacturing settings may differ from the data in the chart.
Notice:
Manufacturer reserves the right to change parametres or controller functions without notice.
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6. ACCESSORIES
6.1 Winter module
Winter module has been designed for effective operations of the heat pump at subzero ambient air
temperatures. It heats the lower part of the compressor (oil tank) resulting in higher oil viscosity
which subsequently easies the compressor operations. Winter module is automatically activated when
the compressor is off and ambient air temperature is below -5°C. After the heat pump is turned on,
i.e. after compressor is turned on, winter module turns itself automatically off. User is not required to
perform any action towards heat pump regulation. System works fully automatically. Power
consumption is 45W. In the case the heat pump will not be used in winter time, along with
winterizing, it is suggested to turn the heat pump’s circuit breaker off in order to avoid unnecessary
energy consumption. Winter module is on demand and is not supplied with each heat pump by
standard.
6.2 Heat exchanger frost protection
Frost protection for heat exchanger ensures protection of the water heat exchanger against rapid
ambient air temperature variation under the subzero temperatures. It is a heating spiral which is
attached onto the heat exchanger body. Heat exchanger frost protection can generally protect the
heat exchanger; however it is not advised to expose the heat exchanger to extremely low
temperatures (e.g. -15°C) for long term with water filtration turned off.
Please be advised that local am bient air tempera ture around yo ur condensing unit may be low er than
the one measured for example at the external wall of your house. This may be caused by various
factors (for example wind). Plea se be advised that connection water piping outside of the water heat
exchanger is not protected by the heat exchanger frost protection. Heat exchanger frost protection is
automatically regulated. It turns itself on if the ambient air temperature decreases below 2°C. Power
consumption is 64W. In the case the heat pump will not be used in winter time, along with
winterizing, it is suggested to turn the heat pump’s circuit breaker off in order to avoid unecessary
energy consumption. Heat exchanger frost protection is on demand and is not supplied with each heat
pump by standard.
6.3 Condensate tray defrost
Condensate tray defrost ensures protection of the tray against frost. This is created in the case the
heat pump works in subzero ambient air temperatures. When heat pump defreezes itself, water drops
are flowing from the evaporator fins into the condensate tray. In the case, the tray is not equipped
with active defrost, gathered water continuously transforms into ice. In the case the ice reaches the
evaporator, it can cause its damage. Condensate tray defrost is a heating spiral which is attached onto
the tray.
Please be advised that local am bient air tempera ture around yo ur condensing unit may be low er than
the one measured for example at the external wall of your house. This may be caused by various
factors (for example wind). Plea se be advised that connectio n water piping outside of the w ater heat
exchanger is not protected by the heat exchanger frost protection. Heat exchanger frost protection is
automatically regulated. It turns itself on if the ambient air temperature decreases below 2°C. Power
consumption is 64W. In the case the heat pump will not be used in winter time, along with
winterizing, it is suggested to turn the heat pump’s circuit breaker off in order to avoid unecessary
energy consumption. Cond ensate tray frost protection is on demand and is not supplied with each
heat pump by standard.
6.4 Protection cover
Protection cover /braced up PVC/ is designed for heat pump coverage for a period when the heat
pump is not in operations (it is winterized or water is removed from heat exchanger and the electricity
is disconnected). Protection cover should be put onto the heat pump from above and should be fixed
with a string at the bottom against wind. It is strictly forbidden to turn the heat pump on and operate
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it with the protection cover on. T his situation would c ause insuffi cient amou nt of air (energy) for heat
pumps operations which would lead to almost none performance both by heating and cooling. This
situation would almost immediately lead to heat pump overheating which could cause a malfunction,
damage or a complete failure of the heat pump. Warranty does not cover any heat pump damage or
other damage caused by heat pump operations with the protection cover on.
7. HINTS AND TIPS
7.1 Water condensation
It is normal to have water dropping or leaking from the evaporator during heat pump operations,
particularly during heating. Duri ng heating, the evaporator is normally cold. It can easily reach dew
point conditions. Dew point means that at given air temperature and relative humidity any surface
that is of below dew point temperature condensates the water from surrounding air.
Condensation can result even in liters of water being leaked out of the heat pump. If you suspect a
leak on water circuit, as a first step it is advised to check if it is condensation. The condesated water
flows over the evaporator lamellas into the casing base. Then flows out through a plastic fitting
designed for connection to the ¾“ PVC tube by which the condensate can be taken to an appropriate
drain.
1. Turn off the device and leave only the swimming pool pump (circulation pump) in operation.
If the water stops to flow out, then it is condensing water.
2. Test, whether there is any chlorine or salt found in the outflowing water (if chlorine or salt are
used). If there is no chlorine or salt, then it is a condensate.
7.2 Winterizing
Split heat pump has been designed to have the wate r unit (water heat exchanger) inst alled in nonfreezing location. Should your application ha ve risk of fre ezing up, please read throug h this sectio n of
this Installation and user manual carefully.
Your heat pump conti nuo us ly c onta ins wa te r in its w ater heat exchanger /w ate r u nit or hydr okit /. Thi s
water will freeze up and damage irreversibly the heat exchanger if exposed to sub-zero air
temperatures, normally during winter time. It is then necessary to prepare the heat pump for sub-zero
air temperatures (e.g. winter time). Generally, the water from inside the water heat exchanger must
be removed. Winterizing is done on heat pumps which do not operate all year round. In the case you
operate your heat pump all year round and/or also in winter months when ambient air temperature
decreases below 0°C it is ne cessary to ensure continuous water circulation through the water heat
exchanger with water of temperature at least 20°C. In the case this is not done, water inside the
water heat exchanger may cool down and subsequently freeze up which causes destructive damage
to heat exchanger and the heat pump will no longer be operational. Warranty excludes such damage.
Winterizing:
1. Disconnect the heat pump from the mains (e.g. by turning the circuit breaker off).
2. Close the bypass valves number 2 and 3 (Please refer
to section 4.2 Connection to water
filtration circuit
).
3. Make sure that the heat pump is disconnected from the mains (electricity). Do not
continue if the heat pump still has power supply or show s signs of it.
4. Drain the exchanger through the ‘DRAINAGE’ screw on the side of the exchanger. It is advised
to unscrew one 6/4 hose nut to allow air enter the exchanger.
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Please make sure that all water is removed from the heat
exchanger before sub-zero air ambient temperatures period
(e.g. winter time). Damage of the heat exchanger resulting
from frost is excluded from warranty.
Your heat pump does not provide any heating or cooling with water
exchanger drained.
7.3 Heat pump season start
After winter time yo u nee d to pre pare your he at p ump for new sea son. In gener al plea se refer t o thi s
Installation and user Manual. Heat pump must be connected to the mains, water circuit; it must
comply with positioning requirements.
During the initial start of the heat pump it is possible to have PL error. This signals low, high or none
water flow and results in heat pump turning off. If your water piping is intact, circulation pump
operates in order; the reason for this initial report may be air bubbles in water system. These tend to
gather around the flowswitch and thus cause incorrect indication of water flow.
In order to remove the water bubbles from the system you need to bleed the water circuit to remove
any outstanding air.
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7.4 Failure reports
Please find below table containing list of failure reports with their explanation and suggested solution.
In order to physically locate the sensor please refer to section
3.6 Block wiring diagram of the PCB
board – Display on condensing unit
or
3.7 Block wiring diagram of the PCB board – Display on water
unit.
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7.5 Troubleshooting – save time and money
Problem Cause Solution
The unit does not work, the
display is blank.
The heat pump is not connected to
the mains or does not have power
supply or circuit breaker is off.
Check the heat pump’s connection to
the mains and circuit breaker. Check
the power supply connection to terminal
of the heat pump.
The heat pump does not
heat (cools) the water.
Desired water temperature equals
current.
Everything is OK. It is normal that the
heat pump does not operate.
Heat pump does not work for 3
minutes and then it starts.
This is normal. It is time protection for
compressor.
The heat pump is set for cooling
(heating) only.
Set the heat pump to heating (cooling)
or Auto mode.
The heat pump is in stand-by
mode.
Turn the heat pump on.
There is no water flow through the
heat pump (possibly PL is
signalled).
Ensure proper water flow of 4-6m
3
/h
through the heat pump.
Heat pump has technical problem
signalled through failure reports
(EE.).
Please
check section 7.5 Failure
reports.
Heat pump has iced up evaporator
but does not defreeze.
Check value for figure 17 /
Section 5.6
Parameters check
. The figure must be
sub-zero. If it’s below zero your heat
pump should initiate defrosting shortly.
If it’s above zero, then it is likely
displaced. Sensor must be placed
correctly.
P1 failure report is signalled by digital
control panel. Your heat pump will
automatically defreeze itself in 45min
cycles. You can force your heat pump to
immediate defrosting /
Section 7.2
Defrosting
.
Gas copper pipe is cold or
not warm enough when
heating. (Gas pipe should
have 45-60°C).
Heat pump operates only few
moments.
Allow the heat pump to operate 10
consecutive minutes and then check the
pipe temperature again.
Heat pump was just defrosting. This is normal. Please check the gas
pipe again in 5 minutes, it should be
hot.
Refrigerant leak, not enough
refrigerant, restriction or other
problem on refrigerant
connection.
Check the refrigerant connection and
amount of refrigerant. Call for service.
The heat pump works but
water temperature
increases slowly or does
not at all. (When heating)
Heat pump operates short period
of time.
The water temperature difference
between inlet and outlet is normal to be
1°C to 1.5°C. During initial heating it is
normal to take up to 72 hours to reach
desired water temperature.
Water flow through the heat pump
is low.
Check the by-pass valves settings /
Section 4.2 Connection to water
filtration circuit
.
Pool size is too big for the heat Speak with your distributor or reseller
HP900/1200SPLIT PREMIUM Installation and user manual
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HEAT PUMP MICROWELL HP
pump. and double check the correct capacity
for your pool.
Insufficient air flow. Heat pump’s
evaporator or air flow is blocked by
trees, dirt, building, etc.
Please check the heat pump for correct
positioning /
Section 4.1 Positioning
.
Refrigerant leak, not enough
refrigerant, restriction or other
problem on refrigerant
connection.
Check the refrigerant connection and
amount of refrigerant. Call for service.
Digital control display
signals EE6.
High pressure on compressor
discharge.
Check if evaporator is not dirty, blocked
by any objects (trees, leafes, etc.).
Check water flow. This error can by
caused by high ambient air
temperatures as well as the water
temperatures (above 35°C) or problem
on refrigerant circuit (leakage,
restriction, not enough refrigerant, etc.)
If this error occurrs repeteadly, please
contact your distributor or reseller.
Other
Other Please call for service.
8. MAINTANANCE & WARRANTY
8.1 Maintanance
W
WARNING:
The device operates at dangerous electrical current and
voltage.
DANGER:
Danger of electric shock!
WARNING:
The device is pressurized with refrigerant R410A. The pressures
can reach as high as 30bar.
a) Clean the swimming pool and the filtration on regular basis to prevent the device from
damage caused by dirty or clocked filter.
b) Check the power supply on regular basis.
c) Should the device appear t o operate i n unusual way, t urn it off im mediately a nd co ntact your
distributor or seller.
d) Check the working area of the condensing unit on regular basis (see the picture in
chapter 4.1
Positioning
). Keep this area clean and remove all the accumulated dirt, leaves, snow, trees or
anything that can increase the risk of air circulation blockage.
e) If you decide not to use th e hea t pump, disconne ct it from the mains, re move t he w ater from
the heat exchanger (please refer
to section 7.3 Winterizing
). It is advised then to cover the
unit with a water resistant sheet or with a PE foil.
f) For external washing of the heat pump, use your common cleaning agent for dishes and pure
water.
g) Clean the external surface of the evaporator with a soft brush on regular basis to remove
impurities. This is particularly important during bloom months. Plea se note that every single
barrier of free air flow reduces the efficiency of the heat pump and may lead to heat pump’s
malfunction, damage or failure.
Installation and user manual HP900/1200 SPLIT PREMIUM
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HEAT PUMP MICROWELL HP
h) Check the evaporator surface and make sure that the lamellas are not compressed. It is
possible to flatten out the lamellas by a flat, non–edgy tool. Please be advised that the
evaporator fins are easy to compress mechanically. The warranty does not cover any
mechanical damage caused on the lamellas.
i) Regularly check the screws, fixing the device to the base, screws fixing the covers.
j) Depending on agressivity of exterior environment (acid rain, chemical ind ustry in vicinity, high
UV, sea or ocean in vicinity, etc.) it is possible for a rust to appear on metal parts. It is
suggested to threat this rust in order to avoid its spread.
k) Do not clean inner parts of water heat exchanger with hot water. The heat exchanger will get
damaged if water temperature inside it rises above 60°C.
l) All the above measures must be performed by a trained technician.
m) The maintenance of the refrigeration or electrical system must be performed by authorized
technicians only.
8.2 Warranty
Your heat pump is covered by warranty. For particular conditions of this warranty in terms of warranty
period and subject please refer to your local regulations and/or agreement with your distributor,
reseller or installer. Any action resulting in damage of the heat pump, property or other damage
caused by improper usage of this product or in contrary with this Installation and user manual is
excluded from warranty coverage.
Distributed by:
Manufacturer:
MICROWELL, spol. s r.o.
SNP 2018/42, 927 01 Sala, Slovakia
tel.: +421/31/702 0540
fax: +421/31/702 0542
e-mail: microwell@microwell.sk
www.microwell.eu
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