C.P.A. CLIMEXEL Series User manual

MANUAL
Ver.02–2017-08-04
C.P.A. S . R . L .
MANUALE HEAT PUMPS
CLIMEXEL SERIES

CLIMEXEL HEAT PUMPS MANUAL
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SOUMMARY
1
INSTALLATION 3
CHOICE OF THE POSITIONING AND INSTALLATION AREA 3
HYDRAULIC CONNECTION CIRCUIT (BY-PASS) 5
COLLEGAMENTO ELETTRICO 6
ELECTRICAL CONNECTION 7
CONDENCE DRAIN 8
START-UP 8
1. CONTROLLER IC 121 CX 8
2. CONTROL KEYPAD FUNCTIONS 9
3. DISPLAY 10
OPERTIVE GUIDE 10
4.
START-UP
10
5.
DISPLAY –CORRECT WORKING
11
6.
DISPLAY- SIGNAL OF ANOMALY
11
7.
STOP
11
8.
SET POINT DISPLAY AND PROGRAMMING
12
9.
ECO / COMFORT MODE SELECTION
12
10.
SETTINGS AND CONTROLS
13
A.
CHECKING THE FLOW THROUGH THE BY-PASS:
13
11.
INITIAL HEATING PHASE - START-UP
13
12.
DEFROST CYCLE
14
13.
PERIODIC MAINTENANCE
14
14.
WINTERING
14
15.
PROBLEMS RESOLUTION
15
16.
TROUBLES LIST
17
17.
ALLARM RESET
17
18.
WIRING DIAGRAM
17
19.
ELECTRICAL DYAGRAM
18
FOR ALL INFORMATION NOT CONTAINED IN THIS DOCUMENT, REFER TO THE MANUAL
CONTAINED IN THE PRODUCT PACKAGING AND / OR TO THE TECHNICAL DATA SHEET
INFORMATIVE

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Attention! The pump must never
be lifted by the hydraulic
connections: risk of damage!
INSTALLATION
WARNING!!!
The heat pump must only be installed by qualified personnel!
WARNING:
▪ Never lift the machine by the hydraulic fittings, there is the risk of damaging the
connection with the titanium exchanger located inside the machine .
▪ heat pump must always be placed in a vertical position, NEVER in a horizontal position
Warranty does not cover damage caused by poor maintenance!
CHOICE OF THE POSITIONING AND INSTALLATION AREA
The positioning and installation of the heat pump are essential to ensure optimal operation. Usually the
points to be respected are the following :
▪ The heat pump must be imperatively installed outdoors, and a minimum distance must be
respected with any type of wall (walls, wooden walls, plant coverings ...) so as not to obstruct
the circulation of air through the machine.
▪ The air emitted by the fans must not be re-sucked, even partially: for this reason, the machine must
not be installed in a place confined by a set of walls, even if the distances indicated above are
respected.
▪ The heat pump must not be directly exposed to prevailing winds .
Model
M.P.I. 80M
M.P.I. 100M
M.P.I. 160M
M.P.I. 190M
M.P.I. 190T
M.P.I. 240M
M.P.I. 240T
M.P.I. 320T
M.P.I. 380T
Numero di ventole
1
1
1
2
2
2
2
2
2
Flusso d’aria [m
3
/h]
2100
2100
3300
6000
6000
6000
6000
8400
8400
Portata acqua [m
3
/h]
4<Q <5
4<Q <5
4<Q <6
5<Q <7
5<Q <7
8<Q <10
8<Q <10
10<Q <12
10<Q <12

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The use of rigid pipes is recommended so that
the weight of the connecting pipes does not rest
on the pump inlets. .
▪ La distanza che separa la pompa di calore dalla piscina non deve essere eccessiva
(preferibilmente inferiore ai 10 m) al fine di limitare le dispersioni termiche nelle
tubazioni di collegamento al circuito di filtrazione della piscina.
▪ L’accesso alla pompa di calore deve essere pratico, in modo da facilitare le operazioni
di manutenzione, che possono necessitare il trasporto di materiali pesanti.
▪ L’acqua non si deve accumulare ai piedi della pompa di calore in caso di pioggia e la
condensa risultante dal suo funzionamento deve essere evacuata correttamente (nota
bene: l’eventuale condensa ai piedi della pompa di calore è la prova di un corretto
funzionamento; in nessun caso può essere considerata come una perdita del liquido di
raffreddamento) .
The heat pump support must be stable and solid:
• Ground installation: prepare a concrete slab about ten cm thick, at least the same size as the
base of the machine.
• Installation at height: the support and its fixing on the wall must resist the weight of
the machine (with a safety margin) without deformation. The solidity of the support
must not be compromised by oxidation of its materials over time.
The hydraulic connections must not be constrained by the pipes: the pipes must be placed on the
ground on a rigid support, or buried, and rise vertically immediately next to the pump. They must
not overload the pump's hydraulic connections. In addition, it is advisable to use a rigid pipe on the
vertical part up to the machine and fix it firmly to the wall using fixing collars. .
Never place flammable or corrosive objects near the heat pump in order to avoid any risk of
damage or accidents.
Never place the pump in the vicinity of fire extinguishing nozzles. Never keep corrosive
chemicals or chemicals that can emit acid or alkaline vapours in the vicinity of the pump. If the
pump is installed close to the sea, it must be protected from spray, offshore winds or sand
loads. Protective panels placed at the recommended minimum distance can be used for this
purpose. .

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Uscita Acqua
Ingresso Acqua
HYDRAULIC CONNECTION CIRCUIT (BY-PASS)
La circolazione dell’acqua della piscina attraverso la pompa di calore è generalmente ottenuta
using a pump already placed at the level of the pool's filtration circuit (in order to avoid the
attachment of an additional pump).
For this reason, it is advisable to design a branch circuit from the filtration circuit and equip it
with three valves :
▪ An adjustable opening valve, positioned between the delivery and return connections: this allows you
to adjust the ratio between the water flow that passes through the heat pump and the water flow that
does not pass through it, so to obtain the debt incurred through the heat pump (compare the table).
▪ A valve positioned near the pump, on the water inlet pipe.
▪ A valve positioned near the pump, on the water outlet pipe .
These last two valves are usually always in the open position, they must be closed only when
it is necessary to intervene on the pump circuit or to disassemble it.
The by-pass connections must be strictly located downstream of the filter to minimize greasing
of the exchanger, and upstream of any injection of chemical products for disinfestation and pH
regulation (provide a space of 1.5 meters of pipes such as minimum) to minimize the risk of
corrosion of the exchanger.
The injection of chemical products must be strictly subject to filtration. Make sure that the
installation cannot cause accidental siphoning of the chemical product tanks since the filtration
does not work.
Be very careful not to introduce impurities (pebbles, earth ...) into the pipes. These would risk
clogging the exchanger during start-up.
The heat pump is equipped on one of its sides with two union joints for the entry and exit of
the pool water. The water inlet and outlet pipes are to be glued on these joints. Allow to dry
thoroughly before starting the water circulation circuit .
Physico-chemical parameters of the pool water:
the pool water treatment chemicals currently on the market are compatible with the materials used
for the construction of the heat pump, provided that the physico-chemical characteristics of the
water comply with the following recommendations:
• pH between 7 and 7.4
• hydrometric title (TH) below 20 ° C
• Cyanuric acid content (stabilizer) below 80 ppm
• Free chlorine concentration from 1.0 to 1.5 ppm
• Concentration of free bromine from 1.0 to 1.5 ppm

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These characteristics must be checked at the beginning of the season, before circulating the water
in the heat pump, and then regularly during the operating period..
WARNING:
Shock treatment of swimming pool water
If "shock" treatment of the pool water is carried out, it is necessary to isolate the hydraulic circuit
(using the by-pass valves) to which the heat pump is connected, before starting to increase the
concentration of disinfectant and wait until this value has returned to normal before re-opening the
valves.
To limit heat loss in the pipes connecting the pump to the swimming pool circuit, it is recommended
that the heat pump is not moved more than 10 metres away from the swimming pool.
Beyond a certain length, the pipes must be buried at a sufficient depth (take into account the risk of
ground frost according to the local temperatures encountered) and adequately insulated
ELECTRICAL CONNECTION
▪ Call in a qualified electrician to carry out this step.
▪ Ensure that the supply voltage, number of phases and frequency correspond to the
characteristics of the heat pump (see table).
▪ Ensure that the cross-section of the power cable complies with the electrical characteristics of the
installed pump.
▪ Place a 30 mA residual differential current device at the head of the heat pump supply line.
▪ The active conductors of the machine's power supply line must be protected by a thermal-
magnetic switch or fuses of a suitable calibre for the power of the installed machine, as shown in
the table below .

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ELECTRICAL FEATURES
Model
M.P.I. 80M
M.P.I. 100M
M.P.I. 160M
M.P.I. 190M
M.P.I. 190T
M.P.I. 240M
M.P.I. 240T
M.P.I. 320T
M.P.I. 380T
Power supply [V]
230 - mono
230 - mono
230 - mono
230 - mono
400 - tri
230 - mono
400 - tri
400 - tri
400 - tri
Nominal
absorption
[A]
13
13
19
28
13
29.5
13
19
21
Electrical
protection
[A]
16
16
25
32
16
40
16
32
32
Sezione del cavo
d’alimentazione
3 x 2.5 mm²
3 x 2.5 mm²
3 x 4 mm²
3 x 6 mm²
5 x 2.5 mm²
3 x 6 mm²
5 x 2,5 mm²
5 x 4 mm²
5 x 4 mm²
▪ The machine must be wired via the white connection box located next to the information plate.
▪ Remove the protective wrapping.
▪ Remove the 4 plastic screws from the cover of the connection box to release and remove the cover.
▪ Insert the power cable into the box, pushing it through the cable glands located at the bottom.
▪ Strip about 1 cm of each wire and connect them to the terminal, paying attention to respect the
phases, neutral and earth.
▪ Tighten the ferrule nuts to secure the cable and make sure the seal around the cable is well seated.
▪ Replace the cover and screws, then replace the cover .
Monophase
Black:Phase
Blu: Neutral
Yellow/Green: Grounding
Three-
phase
Black: Phase 1
Brown: Phase 2
Grey: Phase 3
Blu: Neutral
yellow/Green: Grounging

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1. IC 121 CX CONTROLLER
CONDENSATE DRAIN
START-UP
The purpose of the controller is to maintain the temperature of the pool water. Its
functions are as follows:
• Starting / stopping the machine
• Maintain the pool water temperature according to the temperature difference (or
• ΔT) between the inlet and outlet of the machine and the ambient temperature.
• Display the inlet and outlet water temperature and the room temperature
• Display alarms / indicate a defrosting cycle
The machine's support base must have a very
slight slope (approx. 1-2%) towards the corner
of the collection basin chosen for draining the
condensate.
Use one of the corner holes in the lower
collection basin to drain the condensation.
The basin is equipped with rubber plugs, one of
which is perforated: this must be placed at the
drainage point, as shown in the figure opposite.
If the ground is not able to absorb the generated
condensation, it will be necessary to provide for
the realisation of a drain.

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Button
Function
Push and release:
The Set point value is shown in cooling (SetC code) and in heating (SetH code)
Press and hold for 3 seconds:
The Set point value is shown
Press and release in programming mode:
Allows you to access the modification of the parameters
Allows the acceptance of the new parameters
Push and release:
The value read by the sensor is shown
Press and release in programming mode:
Scroll through the parameters
While editing, the parameter value changes
Push and release:
The value read by the sensor is shown
Press and release in programming mode:
Scroll through the parameters
While editing, the parameter value changes
Push and release:
Starts and stops the machine in cooling mode
Push and release:
Starts and stops the machine in heating mode
Push and release:
Entering and exiting the menu, allows you to access the following parameters:
− ECO / CONFRT mode
− Display and reset of active alarms
− Pout parameter: shows the "Step" power level
− Activation and deactivation of "slave" mode of the "Ser" filtration pump (optional)
− UPL parameter: factory settings
− ALOG parameter: factory settings
Press and release in programming mode:
Returns to the previous programming level
2. CONTROL KEYPAD FUNCTIONS

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4. START-UP
CAUTION: THERE MAY BE AN INTERVAL OF SEVERAL MINUTES BETWEEN THE MOMENT THE
MACHINE IS ACTIVATED AND THE START OF ITS OPERATION.
Icon
Function
°C -°F
Appears when temperature is displayed
Appears when an alarm is detected
Appears when the Menu button is pressed
Appears when the defrost function is active
Appears when there is no or insufficient water flow
Appears when the compressor is running
Appears when the filtration is in series with the heat pump (optional)
Appears when the defrost function is active while the ambient temperature is
below 5 °C (optional)
Appears when the machine is in heating or cooling mode
OPERATIVE GUIDE
Once the electrical wiring and hydraulic connection operations have been completed, in accordance with the
previous paragraphs :
Press to start cooling mode
Press to start heating mode
Quando la macchina è in funzione il display mostra la temperatura in ingresso( in rosso ) ed in uscita ( in
giallo ) dell’acqua simultaneamente
3. DISPLAY

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6. DISPLAY-SIGNAL OF ANOMALY
7. STOP
Press to stop the pump when it is in cooling mode
Press to stop the pump when in heating mode
Display con macchina in spegnimento
5. DISPLAY –CORRECT FUNCTIONING

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Please note:
In heating mode, the set point setting range is between 20 and 35 ° C. In cooling mode, the set point
setting range is between 7 and 40 ° C
9. ECO / COMFORT MODE SELECTION
Press and release the "SET":
− In the lower part of the screen the cooling set point "SetC" or the heating set point "SetH" is displayed.
− The set point is displayed at the top of the screen.
Set point selection:
1) Press and hold the SET SET key for 3 seconds
2) The current set point is displayed on the screen, flashing
3) Use the ▼ or ▲ keys to select the new setting
4) Save the setting by pressing "SET" or wait 15 seconds.
Selection of Eco or Comfort mode:
1) Press the "MENU" button
2) Press the ▼ or ▲ keys to scroll through the parameters until "Mode" is displayed.
3) Press the "SET" button, the mode will start flashing
4) Save the current setting by pressing "SET" or wait 15 seconds.
5) Use the ▼ and ▲ keys to display the desired "Eco" or "Conf" mode
6) Press the "SET" button to save this setting.
8. SET POINT DISPLAY AND PROGRAMMING

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10. SETTINGS AND CONTROLS
A. CHECKING THE FLOW THROUGH THE BY-PASS:
Please note:
The heat pump only operates while the filtration is running. The length of the daily filtration cycles may be
insufficient for the heat pump to properly maintain the pool water temperature around the set point. In this
case, lengthen the filtration cycles and cover the pool while it is not in use to limit heat loss from the pool.
In "COMFORT" mode the machine will operate at maximum power until the set point temperature is
reached. In "ECO" mode the machine will adjust the power according to the water and air
temperature in order to optimize electricity consumption.
The amount by which the pool water temperature is raised by passing through the titanium
heat exchanger depends on two factors :
o flow rate (adjustable)
o the temperature difference between the incoming heat transfer fluid and the incoming pool water.
The higher the ambient temperature, the greater the heat transferred to the fluid at the inlet of the
heat exchanger .
The temperature difference between the inlet and outlet of the heat pump varies depending
on the operating conditions of the machine:
o diminuirà con la diminuzione della temperatura dell'aria ambiente e / o aumenterà la
temperatura dell’acqua da piscina
o aumenterà con l'aumentare della temperatura dell'aria ambiente e / o diminuirà la
temperatura dell’acqua da piscina .
To regulate the flow rate of the by-pass loop, the machine must be operating at full power,
i.e. the set point temperature is more than 3°C above the pool water temperature for at least
20 minutes. Under these conditions, and only under these conditions, the by-pass must be
adjusted to obtain a delta T of 3°C.
Please note:
The efficiency of heat transfer between the heat transfer fluid and the pool water will decrease if the heat
exchanger is encrusted (scale, etc.) or partially clogged. This can prevent the pool water from reaching
the set point even with the bypass valves configured to minimise the flow rate through the bypass loop. .
11. INITIAL HEATING-START-UP PHASE
The first time the heat pump is started or when it is restarted at the beginning of the season, the
pool water must be heated by several degrees to reach the desired temperature (set point).
In addition to minimising heat loss from the pool (use of a cover), it is often necessary to leave the
filtration system running 24 hours a day, so that the heat pump is also running 24 hours a day to
heat the water to the set point in an acceptable time.
When taking these precautions, the initial heating period could take between 2 and 4 days
depending on the daytime and night-time hours (although the air temperature may be high during
the day, nights are often quite cold at the beginning of the season).
Translated with www.DeepL.com/Translator (free version).

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Please note:
o The more humid the air, the more quickly the frost will accumulate.
o Traces of residual frost may persist, however repeated defrost cycles should not cause these
accumulations to grow.
o The thermodynamic defrost works correctly down to -7 ° C. Below this temperature the machine must be
switched off.
o Quadro the weather is cold and humid, the heat pump could engage in subsequent defrosting cycles.
The time dedicated to defrosting is subtracted from the time taken to heat the pool, thus reducing the
caloric power supplied by the machine.
o The speed and efficiency of the defrosting phase directly depend on the pool water temperature.
12. DEFROST CYCLE
As the air passes over the evaporator fins, the water contained condenses into small drops. If the
ambient air is cold, these droplets could freeze and therefore would no longer be able to drain by
gravity from the bottom of the machine. The frost then slowly accumulates on the fins, creating an
insulation over time that would prevent the transfer of heat from the air to the heat transfer fluid.
The heat pumps are equipped with a device that automatically detects the excessive accumulation
of ice and triggers the defrost by inversion of the cycle.
The defrosting phase lasts a few minutes. The heat pump then returns to normal operation and, if
necessary, another defrost phase can be activated. An audible click (movement of the 4-way valve)
accompanies the beginning and the end of the cycle inversion.
13. PERIODIC MAINTENANCE
Regularly check that dirt has not accumulated on the evaporator (pollen, earth, cuts, etc.).
Clean if necessary:
➢ o stop and unplug the machine,
➢ or rinse gently with water (do not use a high pressure hose, this could damage the fins)
➢ or use a soft brush to clean between the fins
➢ Depending on the rate of dirt accumulated on the evaporator, the floor of the machine must be
cleaned regularly by a professional to prevent blocking or blocking the flow of condensate.
➢ Periodically check that the impeller blades are not dirty or damaged.
➢ Check the heat transfer fluid pressure and electrical connections annually by a professional.
➢ Clean the cabinet that houses the machine Clean the cabinet with soapy water and a soft cloth.
Never use abrasive products or organic solvents.
14. WINTERING
➢ Stop the machine
If the heat pump is heating up, stop it.
Please note :

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The heat exchanger must be drained to avoid the risk of freezing of any stagnant water, which
could damage its internal components; the titanium exchanger, the flow sensor, etc. .
Never stop the heat pump during a thermodynamic defrosting phase or only after one, this could cause
problems when the heat pump is restarted at the beginning of a subsequent season (subsequent triggering of
the "HP" mechanism before the heat pump).
Trigger the switch in the electrical panel.
Disconnect the machine, wind up the cable and store it.
➢ Bleeding the heat exchanger
Close the by-pass valves to hydraulically isolate the machine.
Unscrew the upper coupling and then the lower coupling: the water will drain from the machine by gravity..
15. PROBLEM SOLVING
Heat pump is not powered (displays white)
• Has the earth leakage circuit breaker protecting the heat pump become jammed?
• Are the electrical connections (in the electric panel, connection box, etc.) correctly tightened?
La pompa di calore è alimentata (display accesa), ma non avviene nulla all’avvio
• The machine is in the resting phase (lasts 3 to 5 minutes)
• Is the set point correct? Value entered correctly
• Is filtration running?
The heat pump starts up but the earth leakage circuit breaker trips.
• Is/are the earth leakage circuit breaker or thermal magnetic circuit breaker for the heat pump line
not of the D-curve type?
• Has the permissible amperage of the main switch in the house or utility room been exceeded?
• Is the amperage of the thermal protection of the line supplying the heat pump too low?
• Is the house located at the end of the power supply line? If so, could a significant voltage drop at
start-up explain this phenomenon, etc.?
The heat pump is running, but does not heat the water properly
• Check that the water is correctly heated as it flows through the heat pump (1 to 5°C depending on the model): if this
is the case, the water is correctly heated but the heat loss from the pool is too high (cold nights, pool not protected
by an isothermal cover, etc.).
• The heat pump is undersized in relation to the volume of the pool.
• The duration of the programmed daily filtration cycles is insufficient.
• Check that the set point is correct
• The air circulation through the evaporator may be obstructed: check that the minimum distances between the heat
pump and nearby obstacles have been respected
• Check that the evaporator is free of moss, dust, pollen, etc. o Check that the air circulation through the evaporator is
not obstructed.

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The heat pump does not carry out the defrost cycle correctly
o Does the thermodynamic defrosting phase start? Acoustic sound + change in compressor pitch and
(partial) ice melting.
o Ice remains on the bottom of the evaporator: condensate does not drain:
o The heat pump is not tilted slightly towards the condensate drain hole
o The condensate drain hole is blocked .

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16. ALARM CODE LIST
Code
Description
Cause
Remedy/Reset
P1
Sensor alarm Pb1 heat
exchanger input
Faulty sensor or false contact
Automatic reset when sensor is
replaced or contact is verified
P2
Sensor alarm Pb2 heat
exchanger outlet
Faulty sensor or false contact
Automatic reset when sensor is
replaced or contact is verified
P3
Sensor alarm Pb3 room
temperature
Faulty sensor or false contact
Automatic reset when sensor is
replaced or contact is verified
FLOW
Flow sensor alarm
Filtration stopped or sensor
damaged
Restore flow or replace sensor
DIAL
Machine allarm
Machine in Fault mode
(internal board)
Remove tension for at least 5
minutes
EE
EEPROM alarm
Loss of date from the
thermostat's EEPROM
memory
Replace in thermostat
ACF1
Configuration alarm
Incorrect configuration of
the thermostat. Input
and/or output temperature
not configured.
Automatic reset after successful
configuration of parameters
17. ALLARM RESET
➢ Press the "MENU" key
➢ Use the ▼ or ▲ keys to scroll through the parameters until "Alrm" is displayed.
➢ Press the "SET" key, the previously selected selection mode is selected
➢ Use the ▼ or ▲ keys to scroll through the alarms
➢ While "Rst" is displayed at the top of the screen, press the "SET" key
➢ Press the "MENU" key to exit the menu.
18. WIRING DIAGRAM
n°
1
4-way valve
2
Machine error
3
Not in use
4
Control flow
5
Not in use
PB1
Heat exchanger inlet sensor
PB2
Heat exchanger outlet sensor
PB3
Ambient temperature sensor
RL1
Compressor (start/stop)
RL2
Heating/cooling mode
RL3
Defrost start (optional)
RL4
Slave filtration (optional)

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▪ Le informazioni contenute nel presente documento possono variare a discrezione del redigente, senza preavviso, contestualmente alle modifiche del prodotto in oggetto al presente documento: sarà
responsibility of the customer when placing the order to verify the persistent correspondence of the product to the informati on sheet.
▪ Any technical diagrams reproduced in this document have a purely informative value and are not valid for regulatory purposes
▪ All operations must be performed in a workmanlike manner and exclusively by qualified personnel in possession of the requisit es required by current regulations.
▪ It is essential that the installation is carried out by competent and qualified personnel, in possession of the technical req uirements required by the specific regulations on the
subject. By qualified personnel we mean those people who, due to their training, experience and education, as well as their knowledge of the relevant standards, prescriptions f or
accident prevention measures and service conditions, have been authorized by the plant safety manager to carry out any necess ary activity and in this being able to know and
avoid any danger.
▪ This document does not in any way replace the technical documentation relating to the products indicated provided by the manu facturer of the same, to which the installer must
contact in order to obtain all the technical information not present in the aforementioned document.
▪ The C.P.A. s.r.l. assumes no responsibility for any problems deriving from erroneous interpretation of the text.
▪ The C.P.A. s.r.l. furthermore, it declines all responsibility for possible inaccuracies contained in this manual, if due to printing or transcription errors .
19. ELECTRICAL SCHEME