Aqua PRO ECO550 User manual

Swimming Pool Heat Pump
INSTALLATION AND USER MANUAL

2
Content
I. Application......................................................................................4
II. Features.........................................................................................4
III. Technical Parameter ......................................................................5
IV. Dimension ......................................................................................6
V. Installation instruction.....................................................................7
VI. Operation instruction.................................................................... 11
VII. Testing..........................................................................................13
VIII. Precautions ..................................................................................14
IX. Maintenance.................................................................................15
X. Trouble shooting for common faults.............................................16

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Thank your choosing our heat pump. Please read this instruction manual
carefully and operate strictly according to the user manual before
starting the heat pump, otherwise the heat pump may be damaged or
cause you unnecessary harm.
Special Attention:
A. This product is only for swimming pool water heating applications and
can’t be used for the heating for any other liquid materials.
B. The inlet and outlet water nozzles can’t bear the weight of external
pipes.
C. The main power switch should be out of the reach of children.
D. Make sure the power is switched off before opening the case.
NOTE:
A. The swimming pool heat pump must be installed by a qualified
electrician.
B. To maximize your swimming comfort, set proper heating temperature.
C. Don’t put obstacles near the air inlet and outlet of the heat pump.
D. This heat pump has power-off memory function.
E. When the ambient temperature is below 0 degree, make sure to
switch off the main power, and drain off the water from heat exchanger.
F. Never place your hand or any other object in the air inlet or outlet of
the heat pump.
G. If any abnormal circumstances discovered, ex: abnormal noise,
smells, smokes and leakage of electricity, switch the main power off
immediately and contact your local dealer/installer. Do not try to repair
the heat pump yourself.

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I. Application
1- Set swimming pool water temp efficiently and economically to
provide you comfort and pleasure.
2- User may choose the model technical parameter according to
professional guide, this series of swimming pool heater has been
optimized in factory (refer to technical parameter table).
II. Features
1- Sensitive and accurate temp control and water temp display.
2- High pressure and low pressure protection.
3- Exceeding low temp auto stop protection.
4- Temp control compulsory defrosting.
5- International brand compressor.
6- High efficient titanium heat exchanger
7- Easy installation and operation.

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III. Technical Parameter
Model
ECO550
Heating capacity
50000 BTU
Voltage
208-230V
Frequency/phase
60Hz/1Ph
Heating current(air80°F,water80°F)
1.6-10.2A
Heating power(air80°F,water80°F)
0.30-2.3kW
Design pressure(High)
≤609 PSIG
Design pressure(Low)
≤261 PSIG
Refrigerant(R410A)
38.8oz
Net weight
1834oz
Water circulation flow
83-116L/min
Noise
≤50 dB(A)
Notice:
1. This product works well under water temp 50℉～+95℉, air temp
32℉～+109℉, efficiency will not be guaranteed out of this range. Please
take into consideration that the pool heater performance and parameters
are different under various conditions.
2. Related parameters are subject to adjustment periodically for
technical improvement without further notice. For details please refer to
nameplate.

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IV. Dimension
※Above data is subject to modification without notice.
Note:
The picture above is the specification diagram of the pool heater, for
technician’s installation and layout reference only. The product is subject
to adjustment periodically for improvement without further notice.
A
B
C
D
E
F
G
H
ECO550
314
589
312
340
960
290
74
658
BF(E)机
C
H
D
A
E
FG
B

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V. Installation instruction
1, Drawing for water pipes connection.
Note：The swimming pool heater must be grounded.
（Notice：The drawing demonstration and layout of the pipes is only for reference.）
2, Electric Wiring Diagram
Note：1) Must be hard wired, no plug allowed.
2) The swimming pool heater must be grounded.

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Options for protecting devices and cable specification
※
Above data is subject to modification without notice.
Note: The above data is adapted to power cord ≤ 10 m. If power cord is
＞10 m, wire diameter must be increased. The signal cable can
be extended to 50 m at most.
1. Installation and Requirements
The swimming pool heater must be installed by a pool professional. End
users are not qualified to install the heater. Damage may occur to the
heater or threaten the safety of the user.
A. Installation
1) The swimming pool heater should be installed in a location with good
ventilation;
2) The frame must be fixed by bolts (M10) to concrete foundation or
brackets. The concrete foundation must be solid and fastened; the
bracket must be strong and antirust treated;
3) Don’t stack substances that will block air flow near inlet or outlet area,
and no barrier within 20in behind the main heater, or the efficiency of the
heater will be reduced or even haulted;
4) The heater needs an appended pump (Supplied by the user). The
recommended pump specification-flux: refer to Technical Parameter,
Max. lift ≥10m;
5) When the heater is running, there will be condensation water
MODEL
ECO550
Breaker
Rated Current A
20
Rated Residual
Action Current mA
30
Fuse A
20
Power Cord (AWG)
3x12
Signal cable (AWG)
3x20

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discharged from the bottom. Please hold the drainage nozzle
(accessory) into the hole and attach it well, then connect a pipe to
drain the condensation water out.
B. Wiring
1) Connect to appropriate power supply; the voltage should comply
with the rated voltage of the products.
2) Heater must be grounded.
3) Wiring must be handled by a professional technician according to
the circuit diagram.
4) Set leakage protector according to the local code for wiring (leakage
operating current ≤ 30mA).
5) The layout of power cable and signal cable should be orderly and
not interfere with each other.
C. Switch on after finishing all wiring construction and
re-checking.

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Pay attention to the following points:
1．The heat pump must be installed OUTSIDE in a well ventilated area to avoid air
recirculation, or in a place with adequate room for both installation and
maintenance. Please refer to the following illustration:
A minimum of 300mm of clearance from walls, shrubbery, equipment, etc. is required around the
entire pump circumference. This allows for ample air intake. No less than 800mm clearance on
the air outlet is required to prevent recirculation of air. We recommend to not place the unit
underneath eaves, decks, or porches, as this causes recirculation of discharged air, or the
efficiency of the heater will be reduced or even stopped.

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VI. Operation instruction
Symbol
Designation
Operation
Power ON/OFF
Press to power on or off the heat pump
Up/ Down
Press to set desired water temperature
Fan
Press to select Silence mode ON/OFF
Note:
①You may set the desired water temperature from 18 to 35℃.
②The on the right shows the inlet water temperature. The
on the left shows the outlet water temperature.
③After you turn on the heat pump, the fan will start to run in 3
minutes. In another 30 seconds, the compressor will start to run.
2.2.1 Status on the display
Auto Mode Defrost Mode Heating Mode

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Timer ON/OFF
2.2.2. Time setting
①Press for 5 seconds to enter time setting. 88:88 is flashing on
the display
②Press and to adjust the time (fast adjusting by continuous
pressing). Then, press to confirm and exit.
③In the time setting mode, if no operation for 30 seconds, the previous
pressing will be lost and exit automatically.
2.2.3. Timer on and off
①Press the for 10 seconds to enter the timer setting. The “ON”
will be flashing to enter the Timer ON setting. Press the and to
adjust Timer ON time. You can choose Timer on ( Display: ON ), or
Repeat Timer ON ( display: 1 ON ) by pressing . Then press to
confirm
②When the “ON” stops flashing, and “OFF” is flashing, you enter the
Timer OFF mode. Press the and to adjust Timer OFF time.
You can choose Timer OFF (Display: OFF ), or Repeat Timer OFF
( display: 2 OFF ) by pressing . Then press to confirm
③After entering the Time ON/OFF setting, press directly without

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adjusting the time to cancel the relevant Timer setting.
④Exit automatically if no operation for 30 seconds in the Timer
ON/OFF mode,
2.2.4 Silence mode
①The Smart mode as default will be activated when the machine is
tuned on. And the display shows “
②When machine is on, press “ ” button to enter the Silence mode.
will be light. Press “ ” again to exit.
2.2.5 Compulsory defrost
①When the machine is on heating and the compressor is working
continuously for 10 minutes, press both “ ” and “ ” buttons for 5
seconds to start compulsory defrost. (Note: the break between
compulsory defrost needs to be more than 30 minutes.)
②The symbol of defrost is twinkling when machine is compulsory or
auto defrost.
③The period and ending of compulsory defrost is the same as auto
defrost.
VII. Testing
1. Inspection before use
A. Check installation of the entire heater and pipe connections
according to the pipe connecting drawing;
B. Check the electric wiring according to the electric wiring diagram;

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and grounding connection;
C. Make sure that the main heater power switch is off;
D. Check the temperature setting;
E. Check the air inlet and outlet.
2. Trial
A. The user must Start the water pump before the heat pump, and
turn off the heat pump before the water pump, or the heat pump will
be damaged;
B. The user should start the water pump, and check for any leakage
of water; Power on and press the ON/OFF bottom of the heat
pump, and set suitable temperature in the thermostat.
C. In order to protect the pool heat pump, the heater is equipped with
a time lag starting function, when starting the heater; the blower will
run 1 minute earlier than the compressor;
D. After the pool heat pump starts up, check for any abnormal noise
from the heater.
VIII. Precautions
１. Attention
A. Set proper temperature in order to get comfortable water
temperature; to avoid overheating;
B. Please don’t stack substances that can block air flow near inlet or
outlet area, or the efficiency of the heater will be reduced or even
stopped;
C. Please don’t put hands into outlet of the swimming pool heater,
and don’t remove the screen of the fan at any time;
D. If there are abnormal conditions such as noise, smell, smoke and
electrical leakage, please switch off the machine immediately and
contact the local dealer. Don’t try to repair it yourself;
E. Don’t use or stock combustible gas or liquid such as thinners,
paint and fuel to avoid fire;
F. In order to optimize the heating effect, please install heat

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preservation insulation on pipes between swimming pool and the
heater. During running period of the swimming pool heater, please
use a recommended cover on the swimming pool;
G. Connecting pipes of the swimming pool and the heater should be
≤10m, or the heating effect of the heater cannot be ensured;
２. Safety
A．Please keep the main power supply switch far away from the
children;
B．When a power cut happens during running, and later the power is
restored, the heater will start up automatically. So please switch
off the power supply when there is a power cut, and reset temp
when power is restored;
C．Please switch off the main power supply in lightning and storm
weather to prevent from machine damage that caused by
lightning;
D．If the machine is stopped for a long time, please cut off the power
supply and drain water clear of the machine by opening the tap of
inlet pipe.
IX. Maintenance
A．In winter season when you don’t swim:
1. Cut off power supply to prevent any heater damage
2. Drain water clear of the heater.

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3. Cover the heater body when not in use.
B．Please clean the heater with household detergents or clean
water, NEVER use gasoline, thinners or any similar fuel.
C．Check bolts, cables and connections regularly.
X. Trouble shooting for common faults
Failure
Reason
Solution
Swimming
pool heat
pump
does not
run
No power
Wait until the power recovers
Power switch is
off
Switch on the power
Fuse burned
Check to change the fuse
The breaker is off
Check to turn on the breaker.
Running
but not
heating
Air inlet blocked
Remove the obstacles.
Air outlet blocked
Remove the obstacles.
3minutes
protection
Wait patiently
Set temp too low
Set proper heating temperature.
If the above solution doesn’t work, please contact your dealer. Don’t try to
repair the heater yourself.
!!Important:
Unscrew the water nozzle of inlet pipe to
let the water flow out.
When the water in machine freezes in winter
season, the titanium heat exchanger may be
damaged.

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Failure code
NO.
Display
Failure description
1
E1
High pressure protection
2
E2
Low pressure protection
3
E3
No water protection (not failure)
4
E4
3 phase sequence protection (three phase only)
5
E5
Not failure, power supply excesses operation range
6
E6
Excessive temp difference between inlet and outlet
water(Insufficient water flow protection)
7
E7
Water outlet temp too high or too low protection
8
E8
High exhaust temp protection
9
EA
coil pipe(heat exchanger)overheat protection
10
Eb
Ambient temperature too high or too low protection
11
Ed
Anti-freezing reminder (not failure )
12
P0
Controller communication failure
13
P1
Water inlet temp sensor failure
14
P2
Water outlet temp sensor failure
15
P3
Gas exhaust temp sensor failure
16
P4
coil pipe (heat exchanger) temp sensor failure
17
P5
Gas return temp sensor failure
18
P6
Heating coil pipe (evaporator) temp sensor failure
19
P7
Ambient temp sensor failure
20
P8
Heat dissipation device temp sensor failure
21
P9
Current sensor failure
22
PA
Restart memory failure
23
F1
Compressor drive module failure

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24
F2
PFC module failure
25
F3
Compressor start failure
26
F4
Compressor running failure
27
F5
Compressor driver module over current protection
28
F6
Compressor driver module overheat protection
29
F7
Current protection
30
F8
Heat dissipation device overheat protection
31
F9
Fan motor failure
32
Fb
Capacitor & power filter plate No-power protection

Version : B51I