welldana WMV User manual

SWIMMING POOL
HEAT PUMP UNIT
Installation & Instruction Manual
Rev. WF PHP
20.10.2016
1.27.1000115

1. Please read this manual carefully before installing the product, otherwise you could
damage the heat pump, injure users or incur financial losses.
2. As advances in science and technology are made, the product will also improve.
We would therefore urge you to keep up to date with the latest products.
3. If you require further technical information, please contact your local distributor.
4. Note:
4.1 Before installing the heat pump, check that your local power supply meets the requirements of the
heat pump.
For full details, check the unit's label or the performance information that appears in this manual.
4.2 Fit the electrical protection devices in compliance with local regulations.
4.3 You must earth the heat pump in order to prevent electric shocks caused by an unexpected short
circuit in the unit.
4.4 There is a diagram of the wiring in this manual.
4.5 For safety reasons, you should not replace or repair the heat pump yourself. If it required repairs,
please contact your local distributor for assistance.
4.6 Do not place objects inside the heat pump while it is working. They could come into contact with the
fan and damage it, as well as cause accidents (especially in the case of children).
4.7 Do not use the heat pump without the grille or plaque, as this could cause accidents or the unit to
malfunction.
4.8 If the unit fills with water, contact your local distributor immediately.
The unit may only be reset following a full inspection by a qualified service engineer.
4.9 Unqualified service engineers may not adjust the unit's switchboards, valves or controllers.
Advice to customers

1. Performance and installation
1.1 .......................................................................................................1Performance and features
1.2 ................................................................................................................1Working principles
1.3 ..........................................................................................2Location of heat pump installation
1.4 ...........................................................................................................3Distance from the pool
1.5 ................................................................................................3Installation of the check-valve
1.6 ..................................................................................................................4Pool system set up
1.7 ...........................................................................................................4Connecting the by-pass
1.8 ................................................................................................................................5Warning
1.9 ..................................................................................................................6First time start-up
1.10 ......................................................................................................................6Condensation
2. Operation of heat pump
2.1 ...................................................................................................7Operation of control display
2.1.1 ..................................................................................................7Control display illustration
2.1.2 ...................................................................................................8Power ON/OFF heat pump
2.1.3. ..........................................................................................................8How to change mode
2.1.4 .........................................................................................9Adjust desired water temperature
2.1.5 ....................................................................................................9Check and set parameters
2.1.6. ......................................................................................................................9Setting Time
2.1.7 ................................................................................................10Setting Timer on/ Timer off
2.1.8 ...................................................................................................10Cancellation of Timer off
2.1.9 .....................................................................................................................10Key pad lock
2.2 ................................................................................................. 13Operation of APP controller
2.2.1 ....................................................................................... 13working principle of APP control
2.2.2 ........................................................................................................ 13Set up of the network.
2.2.3 .................................................................................................................. 15APP operation
3. Protection systems
3.1 ................................................................................................................ 19Water flow switch
3.2 ................................................................... 19Refrigerant gas high and low pressure protection
3.3 ............................................................................. 19Overheating protection on the compressor
3.4 .................................................................................................... 19Automatic defrost control
3.5 ............................................ 19Temperature difference between inflowing and outflowing water
3.6 .......................................................................................................19Low temperature cut-out
3.7 ....................................................................................... 19Anti-frost protection during winter
3.8 ..................................................................................................... 19First anti-frost protection
3.9 ................................................................................................. 19Second anti-frost protection
4. Direction
4.1 ........................................................................................... 20Swimming pool water chemistry
4.2 ......................................................................................................... 20Heat pump winterizing
4.3 ........................................................................................... 20Restarting the pump after winter
4.4 ............................................................................................................................. 21Check-up
5. Maintenance and inspection
5.1 ....................................................................................................................... 21Maintenance
5.2 .........................................................................................................22Trouble shooting guide
5.3 .................................................................................................. 24Failure code table overview
6. Name plate & wiring diagram
6.1 Name plate...............................................................................................................25
6.2 ..................................................................................................................26Wiring diagram
Contents

1. Performance and installation
1.1 Performance and features
Cooler
De-energized Air
Warm
Air
Fan
Evaporator
(Energy Collector)
Capillary Tube
Condenser
(Water Heat Exchanger)
Pool Filter
Pump
Compressor
Swimming pool
1.2 Working principles
√High efficiency
With a COP value up to 5.0 our heat pumps are very efficient when transferring heat from the
air to the swimming pool water. You can save as much as 80% of cost compared to an electrical
heater.
Long life-span√
The heat exchanger is made of PVC & Titanium tube, which can withstand and prolong exposure
to swimming pool water.
Easy√control and operation
The unit is very easy to operate: simply switch it on and set the desired pool water temperature.
The system includes a micro-computer controller, allowing all operation parameters to be set.
Operation status can be displayed on the controller with LED display.
√'Heat pumps utilize the sun s free heat by collecting and absorbing energy from the outside air.
This energy is then compressed and transferred to the pool water. Your existing water pump circulates
the water through the heater, usually next to the pool equipment, and the water warms up. The heat
pump timer could be set to operate during daylight hours, for example, usually 9am to 5pm.
The unit contains a fan that draws in outside air and directs it over the surface of the EVAPORATOR√
(energy collector).The liquid refrigerant within the EVAPORATOR coil absorbs the heat from the
outside air becomes a gas.
The warm gas in the coil passes through the COMPRESSOR concentrating and increasing the heat√
to form a very hot gas which then passes to the CONDENSER (water heat exchanger).It is here
that the heat exchange occurs as the hot gas gives off heat to the cool swimming pool water circulating
through the coil.
√The pool water becomes warmer, and the hot gas cooling as it flows through the CONDENSER
coilreturns to its liquid form and, after passing on through the CAPILLARY TUBE the whole,
process begins again.
√7℃The state of the heat pump technology can efficiently collect heat from the outside air down to the
to 10 range. For tropic and subtropical climates, this means that the pool can be maintained at 26℃
to 32℃
Heat exchanger Water flow out
Evaporator
Air flow
Compressor
Air flow
Water flow in
1

1.3 Location of heat pump installation
The unit will perform well on any location provided three factors are present:
1. Fresh air - 2. Electricity - 3. Pool filter piping
The unit may be installed virtually anywhere outdoors providing minimum distance requirements are
met with respect to other objects (see diagram below).For indoor pools please consult your installer.
If the unit is placed in a windy area, no problems occur with e.g. the pilot light, as opposed to what is
often the case with gas heaters.
Attention: Do not place the unit in an enclosed area with a limited air volume where the unit's
discharged air will be re-circulatedor near shrubs that could block the air inlet. These locations
deny the unit a continuous fresh air supply, which reduces its efficiency and may prevent adequate
heat yield. See diagram below for minimum required distances.
Cautions
- Do not put your hands or any other object into the air outlet and fan. It could damage the heat pump
and cause injuries.
- In case any abnormality was found in the heat pump, please cut off the power at once and
contact a professional technician.
- It is strongly suggested to place a guard around the machine to keep children away from the heat pump.
22

1.4 Distance from the pool
Normally, the pool heat pump is installed within a 7.5 meter radius of the pool. The greater the distance
from the pool, the greater the heat loss from the piping. Since the piping is buried for the most part,
heat loss is minimal for distances of up to 30 meters (15 meters to and from the pump= 30 meters total),
unless the soil is wet or the water level is high. Heat loss per 30 meters could roughly be estimated at 0.6
kw-hour (2000 BTU) for every 5 temperature difference between the pool water and the soil℃
surrounding the pipe which translates to an operation time increase of 3-5,％.
1.5 Installation of the check-valve
Attention- When using automatic chlorine and PH dosage systems, it is of uttermost importance to protect
the heat pump from high concentrations of these chemicals that could corrode the heat exchanger.
Therefore, such systems should add the chemicals in the conduits located DOWNSTREAM of the heat
pump and it is recommended to install a check-valve in order to prevent backflow when there is no water
circulation.
Damage to the heat pump caused by disregarding any of these recommendations will invalidate the warranty.
Water Pump
P-trap
Check-valve
Filter Chlorinator
Check-valve
Swimming Pool
3

1.6 Pool system set up
1.7 Connecting the by pass
-
Valve 1
Valve 2
Valve 3
BY-PASS F
r
o
m
f
i
l
t
e
r
T
o
p
o
o
l
OUT IN
HEATPUMP
Power cable inlet
Heat Pump
Outlet
Inlet
Condensed water draining pipe
Draining nozzle Discharge water to pool
Pool water inlet Water pump Filter
Water processor Side connection valve
4

Although the heat pump is electrically isolated from the rest of the unit, this only preventsImportant—
the passage of electricity to or from the pool water. Grounding the unit is still required to protect
yourself from short circuits inside the unit. Make for adequate ground connection.
Check if the electrical mains voltage corresponds with the operating voltage of the heat pump prior to
hooking up the unit.
1.8 Warning:
5
- Do not place your hand or any other objects into the air outlet and fan. It could damage the heat
pump and cause injuries;
- In case of any abnormality with the heat pump, cut off the power immediately and contact a
professional technician;
- It is strongly advised to place a protective guard around the unit to keep children away from the heat
pump.
- An authorized electrician must connect the Heat Pump to the power. (230V 1ph or 400V 3ph)
230V / 1ph / 50Hz 380-400V / 3ph / 50Hz
POWER SUPPLY
WATER PUMP
POWER SUPPLY WATER PUMP
POWER CONNECTION
2x2.5+2.5
2x2.5+2.5
2x2.5+2.5
2x2.5+2.5
2x2.5+2.5
2x4.0+4.0
2x4.0+4.0
2x6.0+4.0
2x6.0+4.0
4x2.5+2.5
4x2.5+2.5
4x2.5+2.5
4x2.5+2.5
4x2.5+2.5
3.8kW
4.5kW
5.6kW
7.8kW
9.5kW
12.5kW
14.0kW
17.0kW
21.0kW
14.0kW
17.0kW
21.0kW
26.0kW
31.0kW
220-240
220-240
220-240
220-240
220-240
220-240
220-240
220-240
220-240
3x380
3x380
3x380
3x380
3x380
10
10
10
16
16
16
20
32
32
10
16
16
16
25
3.9
4.6
5.8
7.6
9.4
10.4
12.6
17.0
20.0
4.8
6.3
8.8
9.8
11.4
Model Voltage (V) Fuse (A) Current (A) Cable diameter (mm )
2
(for max. Length of 20 meters)

1.9 First time start-up
Note- In order for the unit to heat the pool (or spa), the filter pump must be running so that the
water can circulate through the heat pump. Without this circulation, the heat pump will not
start.
When all connections have been made and checked, the following steps should be followed:
1). Turn on the filter pump. Check for leaks.
2). Turn on the electrical power supply to the unit, then press the ON/OFF key on the electronic
control panel. The unit should start when the time delay period has elapsed.
3). When the unit has been running for a couple of minutes, check if the air leaving the unit is cooler
than the ambient temp.
4). Check the performance of the flow switch as follows: with the unit running turn the filter pump off.
The unit should also switch off automatically.
5). The unit and the filter pump should run 24 hours a day until the desired pool water temperature
has been reached. Once the set temperature is reached, the unit will switch itself off. As long as
the filter pump is running, the unit will restart automatically when the temperature of the pool
water drops more than 1°C below the set temperature.
Water flow switch—the unit is equipped with a flow switch that is switched on when enough water
has flowed through the unit and that is switched off when the water flow becomes too low. (E.g.
When the filter pump is switched off).
Depending on the starting temperature of the pool water and the air temperature, it can take several
days for the water to reach the desired temperature. Covering the pool can drastically reduced this
period.
1.10 Condensation
Time delay—the unit is equipped with a built-in 3-minute start delay included to protect ele-
ctrical components and contacts. After this time delay, the unit will automatically be rest-
arted. Even a brief interruption of the power supply will activate the start delay and prevent the
unit from starting immediately. Additional interruptions of the power supply during the delay pe-
riod will have no effect on the 3-minute countdown.
When the swimming pool water is being heated by the heat pump, the incoming air is cooled down
quite a bit, which can cause condensation on the fins of the evaporator. Condensed volumes can
attain several litres per hour under high atmospheric humidity. Sometimes, this is wrongfully inter-
preted as a water leak.
6

7
MIN
2. Operation of heat pump
2.1.1 Control display illustration:
When heat pump is supplied with power, controller will display with full screen, shows that it is already
connected. If connection fails in 10 seconds, please check connections between communication cable
and control display, or replace with another control display.
Button functions:
button: ON/OFF switch to start or stop heat pump.
MODE button: To switch between heating, cooling and auto mode.
TIMER button:Timer button to set timer on and timer off.
To enter parameter settings and confirm settings.
“+” “-”button: To increase or decrease value.
Icons definitions:
--heating icon, showing heat pump is in heating mode.
--cooling icon, showing heat pump is in cooling mode.
--auto icon, showing heat pump is in auto mode.
--alarm icon, showing system alarm.
--key pad lock icon, showing buttons on the control display are locked.
Note: 1. Heat pump is not equipped with electric heater internally, only provides terminal for
external connection.
2. Fan speed is automatically controlled by ambient temperature, not manually.
--wifi signal.
2.1 Operation of control display

8
2.1.2Power ON/OFF heat pump
Press button 5s to switch on heat pump.
Figure 2-2
Once the heat pump is powered on all related running component icons will be lightened as well as
POWER displayed in the middle of display to show system is in running status.
Figure 2-2 shows heat pump in standby status and figure 2-3 shows heat pump in running status.
The left temperature shows flow water temperature while the right temperature is the return water
temperature.
Figure 2-3
Press button to select auto, heating or cooling mode, related indicator icon will beMODE
lightened as a symbol to show heat pump is in either auto , heating or cooling mode.
2.1.3 How to change mode
Figure 2-4
running status
Heating mode
Auto mode Cooling mode

9
2.1.5 Check and set parameters
When heat pump is in standby status, press button for 5 seconds display willMODE
show parameter number with value flashing together.
Move “+” and “-” button to check required parameter
settings.
Select desired parameter and press buttonMODE
for resetting parameter. Parameter number stays
fixed while parameter value remains flashing.
Move “+” and “-” button to adjust the value.
Press button to confirm the setting.MODE
Without any further movement on the display button
in 2min it will return to main interface automatically.
See Parameter table for more details.
parameter
value
Note: All parameters can be changed ONLY under standby status !
2.1.4 Adjust desired water temperature
1.First select desired mode, auto, heating or cooling.
2.No matter the heat pump is under standby status or running status, press “+” or “-” , display will
show the desired water temp. of selected mode with a flashing value, then change the water temp.
by moving “+” or “-” as requested.
Figure 2-5
Press button 5s in a quick stop to activate time setting.TIMER
When hour numbers are flashing it is available for revision, move “+” or “-” to fix hour numbers.
Press button to confirm hour setting.TIMER
Minute numbers start flashing once the hour numbers are confirmed, move “+” or “-” to fix minute numbers.
Press button to confirm minute setting.TIMER
TIMER
TIMER
TIMER
2.1.6. Setting Time

10
Hour data will be flashing with ON, move “+” or “-” to set it.
Confirm timer on hour setting by pressing button.TIMER
Minute data starts flashing once hour setting is confirmed, move “+” or “-” to set it.
Confirm timer on minute setting by pressing button.TIMER
TIMER
TIMER
Once Timer on is set and confirmed Timer off will be activated.
Follow the same steps as setting Timer on to set Timer off.
2.1.8 Cancellation of Timer off
Press +”and “-”button together for 5 seconds, display will show lock icon. Do this again“
to unlock.
“
2.1.9 Key pad lock
Figure 2-6
If the starting time is set to be the same as the finishing time, then the timer function is off.
The “ ”signal will be off.
key and locked
Timer ON /OFF
Minute data starts flashing once hour setting is confirmed, move to set it.-“”or“”+
Confirm timer on minute setting by pressing button.TIMER
Press button, and then button. The“ ” signal will flash, then pressTIMER MODE
“” orbutton to change to+TIMER 2 .TIMER 3
+
TIMER
TIMER MODE
+TIMER 2 .TIMER 3
2.1.7 Setting Timer on/ Timer off
Press button to enter timer setting for .TIMER TIMER 1
Hour data will be flashing with ON, move “+” or “-” to set it.
Confirm timer on hour setting by pressing button.TIMER
TIMER TIMER 1
TIMER

8～℃37
03～
01～
27℃
1
(heat pump)
0
840～℃ 27℃
120～℃
2℃
Temp. Setting Cooling Temp. Setting Cooling
Temp. Setting Heating Temp. Setting Heating
Time between defrosting cycles Time b/w Defrosting Cycles
Evaporator temp. Defrost start Evap. Temp. Defrost Start
Evaporator temp. Defrost stop Evap. Temp. Defrost Stop
Defrost Time
Number of Refrigerant System
Power-off Memory Setting
Type of Unit
Defrosting time
Number of Refrigerant system
Power-off memory setting
Type of unit
(0=only cooling/1=heat pump/
2=EI. Heating/3=hot water)
27℃
30Min
-3℃
13℃
8Min
1
1Yes（）
840～℃
10 90Min～
-30 0～℃
230～℃
1 12Min～
14～
0(No)/1(Yes)
Filter pump setting
(0=always running/1=run 5 min/2hr) Filter Pump Setting
Cooling Heating AUTO Restart Cool/Heat/Auto Restart
Delta Temp. Start-Stop Delta Temp. Start-Stop
Adjustable
By technician
Adjustable
By technician
By technician
By technician
By technician
By technician
By technician
By technician
Adjustable
By technician
4 way valve direction Four-way Valve Direction 0(heating)/
1(cooling) 0
Water freezing protection
setting ambient temperature
Water freezing protection
setting inlet water temperature
Water Anti-freezing Air
Water Anti-freezing Inlet Water
015℃～
214～℃
0℃
4℃
By technician
By technician
By technician
Set. Target Superheat EEV -15 15～N/A
Set. Calc. Factor EEV 10 50～
Opening Setting of EEV 10 50～
EEV Setting 0 manual()/
1(auto)
Setting of Superheating Target for
Electric Expansion Valve (EEV)
Setting of Calculating Factor
for EEV
Opening Setting of EEV
EEV Setting
5
35
35
1
11
Parameter table overview (1)
Parameter
F8/08
F9/09*
F10/10
F11/11
F0/00
Range Default Remark
APP Description
Control Display
F1/01
F2/02
F3/03
F4/04
F5/05
F6/06
F7/07
F18/18
F16/16
F17/17
F12/12
F13/13
F14/14
F15/15**
N/A
N/A
N/A

12
Parameter table overview (2)
Remarks: To change the factory default via the phone, password is required and only available for technician.
* Run 5min/2hr=filter pump stops 30s after compressor, filter pump runs for 5 min every 2hours checking inlet temp.,
in this period will disregard the flow switch.
** 0=manual, in manual parameter 13 and 14 is enabled; 1=automatic, in automatic parameter 13 & 14
disabled only Parameter 12 is valid.
Parameter Range Default
APP Description
Control Display
F26/26
F20/20
F19/19
Protection setting of out-in
water temperature(Only in Cooling Mode)
F23/23
F24/24
F25/25
F22/22
Setting Ambient temp.
to change fan speed
F27/27
Setting of heat exchange
overheat protection Tout-Tin(to low water flow)
Protection water outlet temp. heatingF21/21
Time delay of compressor start
(after filter pump start)
Time delay of filter pump stop
(after compressor stop)
Setting Ambient temp. to Start
bottom heater
Change Fahrenheit/Celsius(0=C/1=F)
Factory reset
Set W. Out Over-Cooling Prot.
Protection In-Out Cooling
Time Delay Comp. Start
Time Delay Pump Stop
Bottom Heater Start
Set Fan Speed Temp.
Fahrenheit/Celsius
Factory Reset
3 20～℃
5 20～℃
20 90～℃
5 99S～
5 99S～
0 20～℃
5 40～℃
0(Centigrade)/
1(Fahrenheit)
0(Reset)/
1(existing setting)
5℃
60℃
13℃
60S
30S
7℃
27℃
1
0
Remark
By technician
By technician
By technician
By technician
By technician
By technician
By technician
By technician
By technician
System measure value overview
Range
Remark
-10 99～℃
-10 99～℃
-10 99～℃
-10 99～℃
-10 99～℃
10~50(1=10P)
10 99-℃～
-10 99～℃
Measured Value
Measured Value
Measured Value
Measured Value
Measured Value
Measured Value
Measured Value
Measured Value
Parameter Description Range Remark
T0
T1
T2
T3
T4
T5
T6
T7
Water Inlet Temp.
Water Outlet Temp.
Evaporator Temp.
Ambient Temp.
Return Gas Temp.
Elec. Expansion Valve
Not used
Not used
Remarks: “ ” =“T”, e.g. “ 0”=T0".ГГ
Set W. Out Over-Heating Prot.

13
2.2. Operation of APP controller
POOL COMFORT APP
1).Download “ POOL COMFORT” and install it.
2). Make sure your phone is connected to your WIFI module.
2.2.2 Set up of the network.
server
3G/4G
router
internet connection
router
Network operation
2 2 1 working principle of APP control..
Requirements for Android System:
1. System version above 2.3.7 (2.3.7 not included).
2. Resolution 480*800 and above.
3. APK 40M and above, TF card or build-in storage.
4. Requiring the system to have remaining 100MB
of storage.
Requirements for iphone IOS System:
1. For IOS system version 8.x and above.
2. For iphone 4s and latter ones.
3. At least 40M of storage remaining in the phone.

14
3) Start the heat pump and press button and button on the control display"-" " "TIMER
together for 3 seconds to activate the control display WIFI WIFI icon starts blinking.
and search the WIFI nearby.
wifi symbol
on control display
4).Click the “POOL COMFORT” icon and start it.
wifi name
wifi password
5) Click button + and choose “new device”.“”
With the connected WIFI name shown , fill in WIFI password and click “Search”.It will
take maximum120 seconds to connect the control display through the connected WIFI
module.
Once the WIFI icon remains ON the connection between your phone and control display
has been set up.

15
6) Insert default password of the device “123456", and click “Bar code” to scan the serial
number of heat pump which is below the data plate on the side panel of the heat pump.
Put the serial number inside the scanning area and make sure the red scanning line stay
on the serial number.
Soon after the serial number is scanned press “confirm” to enter the main interface.
There will be a gentle reminder of changing the password. Set the new password and it will
go to operational page.
Now the connection between your heat pump and APP are well set up !
1). Illustration of operational page.
Mode Button - Set heating,
cooling, or smart/Auto.
Temperature Button-
set desire temperature
Timer button
ON/OFF Button
Technical Button - Parameter settings only
available for technicians. Password required.
Status Check Button - To check
status of working details
2.2.3 APP operation
POOL COMFORT POOL COMFORT
POOL COMFORT

16
2).How to switch on/off the heat pump.
Click Button to turn on/off the unit.
3).How to change mode
Press to select auto(smart), heating, or cooling mode.
4).How to set desired water temperature
Click to modify the water temperature.
5) How to set timer.
a.Click the to enter the timer page;
b. Click “Timer On”, move up and down to set the time for Timer On
d. Finally click “save” to confirm.
c. Do the same to set “Timer Off”.
e. The latest Timer On /Off will also show on the operational page.
f. There are maximum 3 timers can be set.
M

17
7).How to change parameter setting
(Password is required to change the factory default setting , only available for technician.)
Insert technical password to enter technical setting page.
In running or standby status, click to check system measured value and working details.
6).How to check details of running status