Aqua PRO ECO900 User manual

Swimming Pool Heat Pump
INSTALLATION AND USER MANUAL

Content
I. Application..............................................................................................2
II. Features..................................................................................................2
III. Technical Parameter.............................................................................3
IV. Dimension...............................................................................................4
V. Installation instruction...........................................................................5
VI. Operation instruction.............................................................................9
VII. Testing...................................................................................................12
VIII. Precautions ..........................................................................................12
IX. Maintenance.........................................................................................14
X. Trouble shooting for common faults.................................................15

1
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.
This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge,
unless they have been given supervision or instruction concerning use of the
appliance by a person responsible for their safety.
Special Attention:
A. This product is only for swimming pool water heating & cooling 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.

2
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.

3
III. Technical Parameter
Model
ECO550
ECO900
Applied pool volume (gallons)
≤14000
≤28000
Operating air temperature (°F)
32~109
Performance Condition: Air 80°F/ Water 80°F/ Humidity 80%
Heating capacity (Btu)
50,000
90,000
Heating capacity (Btu) in silence mode
40,000
72,000
C.O.P
10.6~5.98
13.6~6.0
Performance Condition: Air 80°F/ Water 80°F/ Humidity 63%
Heating capacity (Btu)
47,500
85,000
Heating capacity (Btu) in silence mode
37,200
68,000
C.O.P
9.7~5.5
12.3~5.7
Performance Condition: Air 50°F/ Water 80°F/ Humidity 63%
Heating capacity (Btu)
23,000
43,000
C.O.P
5.1~4.15
5.5~4.3
Rated input power (kW) at air 80°F
0.46~2.53
0.54~4.39
Rated input current (A) at air 80°F
2.00~11.0
2.34~19.1
Power supply
208~230V/1 Ph/60Hz
Advised water flux (L/min)
83~117
125~158
Sound pressure 10‘FT dB(A)
34.9~46.0
34.9~46.8
Heat exchanger
Titanium in PVC
Casing
ABS casing
Air discha Air discharge rge
Horizontal
Water pipe in-out Spec (mm)
48
Net Dimension LxWxH (mm)
961×340×658
1092x420x958
Net Weight (lbs.)
114
187
Notice:
1. This product works well under water temp 80℉～+104℉, 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.

4
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
315
590
312
340
961
330
74
658
ECO900
395
720
392
420
1092
620
74
958
BF(E)机
C
H
D
A
E
F
G
B
Name
Size(mm)
Model

5
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.

6
3) WARNING: Before obtaining access to terminals, all supply circuits must be
disconnected.
4) 5-6 terminal: Customer remote control switch connector, to reach automation
control through 2-wire dry contact connection, and only control the unit
On/Off.
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.
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
MODEL
ECO550
ECO900
Breaker
Rated Current A
15.5
26
Rated Residual
Action Current mA
30
30
Fuse A
15.5
26
Power Cord (AWG)
3x13
3x10
Signal cable (AWG)
3x20
3x20
Jumper is installed by default, if loosen or
disconnection “OFF” will display.

7
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 halted;
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
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.
6) The appliance shall be installed in accordance with national wiring
regulations.
C. Switch on after finishing all wiring construction and
re-checking.

8
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 500mm of clearance from walls, shrubbery, equipment, etc. is required around the
entire pump circumference. This allows for ample air intake. No less than 1000mm 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.

9
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
Heating mode
Only heating is available
Timer
Timer set up
Note:
①You may set the desired water temperature from 65 to 104℉.
②Only the inlet water temperature is displayed, normally the outlet
water temperature will be 2-4℉higher.
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.

10
1. Status on the display
Defrost Mode Heating Mode Timer ON/OFF
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.
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

11
( display: 2 OFF ) by pressing . Then press to confirm
③After entering the Time ON/OFF setting, press directly without
adjusting the time to cancel the relevant Timer setting.
④Exit automatically if no operation for 30 seconds in the Timer
ON/OFF mode,
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.
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.

12
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;
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 or overcooling;
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,

13
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
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.

14
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.
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.
!!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.
1.“Cut off” power supply of the heater before cleaning, examination and repairing
2. Do not touch the electronic components until the LED indication lights on PCB is off/
turn off.
o
ff.
Caution: Danger of electric shock

15
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.

16
Failure code
NO.
DISPLAY
NOT FAILURE DESCRIPTION
1
E3
No water protection
2
E5
Power supply excesses operation range
3
E6
Excessive temp difference between inlet and outlet water (Insufficient water
flow protection)
4
Eb
Ambient temperature too high or too low protection
5
Ed
Anti-freezing reminder
NO.
DISPLAY
FAILURE DESCRIPTION
1
E1
High pressure protection
2
E2
Low pressure protection
3
E4
Phases lack protection (three phase model only)
4
E7
Water outlet temp too high or too low protection
5
E8
High exhaust temp protection
6
EA
Evaporator overheat protection (only at cooling mode)
7
P0
Controller communication failure
8
P1
Water inlet temp sensor failure
9
P2
Water outlet temp sensor failure
10
P3
Gas exhaust temp sensor failure
11
P4
Heating (Evaporator) coil pipe temp sensor
12
P5
Gas return temp sensor failure
13
P6
Cooling (Titanium heat exchanger) coil pipe temp sensor
14
P7
Ambient temp sensor failure
15
P8
Cooling plate sensor failure
16
P9
Current sensor failure
17
PA
Restart memory failure
18
F1
Compressor drive module failure
19
F2
PFC module failure
20
F3
Compressor start failure
21
F4
Compressor running failure
22
F5
Inverter board over current protection
23
F6
Inverter board overheat protection
24
F7
Current protection
25
F8
Cooling plate overheat protection
26
F9
Fan motor failure
27
Fb
Capacitor no charging protection
28
FA
PFC module over current protection

The factory reserves the final interpretation right.
And keep the right to stop or change product specification and designwithout prior notice at any time,
no need to bear the resulting obligations.
Version : F51IN