Kensol-Franklin KTB Troubleshooting guide

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB
USER AND SERVICE MANUAL
DC Inverter Swimming Pool Heat Pump
KENSOL KTB

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB
Thank you for using swimming pool heat pump for your pool heating, it will heat your pool water and
keep a constant temperature when the ambient air temperature is at -7 to 43℃
ATTENTION:This manual includes all the necessary information about the use and the instal-
lation of your heat pump. The installer must read the manual andattentivelyfollowtheinstruc-
tionsofimplementationand maintenance. The installer is responsible for the installation of the
product and should follow all theinstructionsofthemanufacturerandtheregulations in appli-
cation.Incorrect installation against the manual implies the exclusion of the entire guarantee.
Themanufacturerdeclinesanyresponsibilityforthedamagecausedtopeople,object sand for errors
due to the installation against the manual. Any use that isn’t in accordance with the origin of its
manufacturing will be regarded as dangerous.
WARNING:
Do not use means to accelerate the defrosting process or to clean,Other than those recommended by
the manufacturer.
The appliance shall be stored in a room without continuously operating ignition sources (for example:
open flames, an operating gas appliance or an operating electric heater.)
Do not pierce or burn.
Be aware that refrigerants may not contain an odour.
Appliance shall be installed, operated and stored in well-ventilated room.
NOTE The manufacturer may provide other suitable examples or may provide additional information
about the refrigerant odour.
WARNING: Please empty the water in heat pump always during winter time or when the ambient tem-
perature drops below 0ºC or else the Titanium exchanger will be damaged because of being frozen, in
such case, your warranty will be lost.
WARNING: Please always cut the power supply if you want to open the cabinet to reach inside the heat
pump, because there is high voltage electricity inside.
WARNING: Please keep the display controller in a dry area, or close the insulation cover to protect the
display controller from being damaged by humidity.

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB
1. Specifications
1.1 TECHNICAL DATA
Model KTB 7 kW KTB 11 kW KTB 20kW
Advised pool volume (m³) 15~30 25~50 50~100
Operating ambient temperature range
(ºC) -7~43
Working condition: Air 27°C, Water 26°C, Humidity 80%
Heating capacity (kW) 1.92 ~7.50 2.5 ~11.0 4.0 ~20.0
Input power (kW) 0.13 ~1.15 0.17 ~1.83 0.27 ~3.33
COP 6.5~14.8 6.0~14.7 6.0~14.8
Working condition: Air 15°C, Water 26°C, Humidity 70%
Heating capacity (kW) 1.42 ~5.80 1.65 ~8.5 2.85 ~15.6
Input power (kW) 0.20 ~1.15 0.23 ~1.77 0.40 ~3.25
COP 5.0~7.1 4.8~7.2 4.8~7.0
Working condition: Air 35ºC, Water 28ºC, Humidity 80%
Cooling capacity (kW) 4,0 6.0 10.1
Noise dB (A) 38~48 40~50 43~53
Condenser Spiral titanium
Cover ABS
Power supply (Voltage, Phases,
Frequency) 230V/1 Phase/50Hz
Diameter of pipe (mm) Ø 50
Rated current for 15ºC (A) 0.9 ~5.1 1.0 ~7.8 1.8 ~14.3
Advised water flow (m³/h) 2~4 3~5 8~10
Water pressure decrease (max) (kPa) 2 4 6
Weight net/gross (kg) 62/70 64/72 81/91
Dimensions (W x D x H) (mm) 1000x396x640 1000x396x640 1125x416x765
Compressor Panasonic
Amount of refrigerant (g) 340 440 780
Refrigerant R32
4-way valve Sanhua
Expansion valve Sanhua
Operating range (ºC) heating 9~40
Operating range (ºC) cooling 9~35

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 1/27
2. Dimension
2.1 UNIT: MM
Model A B C D E F G H I
KTB 7KW
KTB 11KW 982 640 396 352 630 371 187 250 106
KTB 20KW 1106 764 416 378 745 391 198 300 106

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 2/27
2.2 EXPLODED VIEWS
NO Spare parts NO Spare parts
1chassis 15 electric box cover
2compressor 16 electric box
3intermediate partition 17 wire controller
4motor bracket 18 transfer terminal block
5motor 19 reactance
6fan blade 20 4-way valve
7front panel 21 electronic expansion valve
8fan guard net 22 junction box cover
9back net 23 filter
10 Titanium tube heat exchanger 24 high voltage switch
11 control board 25 low voltage switch
12 top frame 26 needle valve
13 fin heat exchanger 27 terminal block
14 top panel 28 right side panel

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 3/27
3. Installation and connection
3.1 NOTES
The factory only supplies the heat pump. All other components, including a bypass if necessary, must
be provided by the user or the installer.
Attention:
Please observe the following rules when installing the heat pump:
1. Any addition of chemicals must take place in the piping located downstream from the heat
pump.
2. Install a bypass if the water flow from the swimming pool pump is more than 20% greater than
the allowable flow through the heat exchanger of the heat pump.
3. Install the heat pump above the water level of the swimming pool.
4. Always place the heat pump on a solid foundation and use the included rubber mounts to avoid
vibration and noise.
5. Always hold the heat pump upright. If the unit has been held at an angle, wait at least 24 hours
before starting the heat pump.
3.2 HEAT PUMP LOCATION
The unit will work properly in any desired location as long as the following three items are present:
1. FRESH AIR – 2. ELECTRICITY – 3. SWIMMING POOL FILTERS
The unit may be installed in virtually any outdoor location as long as the specified minimum distances
to other objects are maintained (see drawing below). Installation in a windy location does not present
any problem at all, unlike the situation with a gas heater (including pilot flame problems).
ATTENTION: Never install the unit in a closed room with a limited air volume in which the air expelled
from the unit will be reused, or close to shrubbery that could block the air inlet. Such locations impair
the continuous supply of fresh air, resulting in reduced efficiency and possibly preventing sufficient
heat output. See the drawing below for minimum dimensions.

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 4/27
3.3 DISTANCE FROM YOUR SWIMMING POOL
The heat pump is normally installed within a perimeter area extending 7.5 m from the swimming pool.
The greater the distance from the pool, the greater the heat loss in the pipes. As the pipes are mostly
underground, the heat loss is low for distances up to 30 m (15 m from and to the pump; 30 m in total)
unless the ground is wet or the groundwater level is high. A rough estimate of the heat loss per 30 m
is 0.6 kWh (2,000 BTU) for every 5 ºC difference between the water temperature in the pool and the
temperature of the soil surrounding the pipe. This increases the operating time by 3% to 5%.
3.4 CHECK-VALVE INSTALLATION
Note: If automatic dosing equipment for chlorine and acidity (pH) is used, it is essential to protect the
heat pump against excessively high chemical concentrations which may corrode the heat exchanger.
For this reason, equipment of this sort must always be fitted in the piping on the downstream side of
the heat pump, and it is recommended to install a check-valve to prevent reverse flow in the absence
of water circulation.
Damage to the heat pump caused by failure to observe this instruction is not covered by the warranty.

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 5/27
3.5 TYPICAL ARRANGEMENT
Note: This arrangement is only an illustrative example.
3.6 ADJUSTING THE BYPASS
Optimal operation of the heat pump occurs when the cooling gas pressure is 22 ± 2 bar. This pressu-
re can be read on the pressure gauge next to the control heat pump panel. Under these conditions
the water flow through the unit is also optimal. Note: Operation without a bypass or with improper
bypass adjustment may result in sub-optimal heat pump operation and possibly damage to the heat
pump, which renders the warranty null and void.
Use the following procedure to adjust the
bypass:
• fully open all three valves
• slowly close valve
• Close valve 3 approximately half-way to
adjust the gas pressure in the cooling system
• If the display shows error code E03, close
valve 1 step by step, to increase water flow and
stop when the code disappears.

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 6/27
3.7 ELECTRICAL CONNECTION
Note: Although the heat pump is electrically isolated from the rest of the swimming pool system, this
only prevents the flow of electrical current to or from the water in the pool. Earthing is still required
for protection against short-circuits inside the unit. Always provide a good earth connection.
Before connecting the unit, verify that the supply voltage matches the operating voltage of the heat
pump.
It is recommended to connect the heat pump to a circuit with its own fuse or circuit breaker (slow
type; curve D) and to use adequate wiring (see table below).
Connect the electrical wires to the terminal block marked ‘ POWER SUPPLY ’.
A second terminal block marked ‘WATER PUMP ’ is located next to the first one. The filter pump
(max. 5 A / 240 V) can be connected to the second terminal block here. This allows the filter pump
operation to be controlled by the heat pump.
Model Voltage [V] Fuse or circuit
breaker [A]
Rated current
[A]
Wire diameter
mm²
(with max. 15 m
length)
KTB 7KW 220–240 10 4,4 3 × 1,5 mm2
KTB 11KW 220–240 15 8,5 3 × 2,5 mm2
KTB 20KW 220–240 30 18,7 3 × 6 mm2

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 7/27
3.8 INITIAL OPERATION
Note: In order to heat the water in the pool (or hot tub), the filter pump must be running to cause the
water to circulate through the heat pump. The heat pump will not start up if the water is not circulating.
After all connections have been made and checked, carry out the following procedure:
1. Switch on the filter pump. Check for leaks and verify that water is flowing from and to the
swimming pool.
2. Connect power to the heat pump and press the On/Off button on the electronic control panel.
The unit will start up after the time delay expires (see below).
3. After a few minutes, check whether the air blowing out of the unit is cooler.
4. When you turn off the filter pump , the unit should also turn off automatically, if not adjust the
flow switch.
5. Allow the heat pump and the filter pump to run 24 hours a day until the desired water tempera-
ture is reached. The heat pump will stop running at this point. After this, it will restart automatically
(as long as the filter pump is running) whenever the swimming pool water temperature drops 2 de-
grees below the set temperature. Depending on the initial temperature of the water in the swimming
pool and the air temperature, it may take several days to heat the water to the desired temperature. A
good swimming pool cover can dramatically reduce the required length of time.
Water Flow Switch:
It is equipped with a flow switch to prevent the heat pump of running with inadequate water flow rate.
It will turn on when the pool pump runs and shuts off when the pump shuts off. If the pool water level
is more than 1m above or below the heat pump’s automatic adjustment knob, your dealer may need to
adjust its initial startup.
Time delay:
The heat pump has a built-in 3-minute start-up delay to protect the circuitry and avoid excessive
contact wear. The unit will restart automatically after this time delay expires. Even a brief power
interruption will trigger this time delay and prevent the unit from restarting immediately. Additional
power interruptions during this delay period do not affect the 3-minute duration of the delay.
3.9 CONDENSATION
The air drawn into the heat pump is strongly cooled by the operation of the heat pump for heating the
pool water, which may cause condensation on the fins of the evaporator. The amount of condensation
may be as much as several liters per hour at high relative humidity. This is sometimes mistakenly
regarded as a water leak.

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 8/27
4. Accessories
4.1 ACCESSORIES INSTALLATION
Anti-vibration bases
1. Take out 4 Anti-vibration bases
2. Put them one by one on the bottom
of the machine like the picture.
Water Inlet & outlet junction
1. Use the pipe tape to connect the
water Inlet & outlet junction onto the
heat pump
2. Install the two joints like the
picture shows
3. Screw them onto the water Inlet &
outlet junction
Cable wiring
1. Open the lid of the electrical.
2. Secure the wire to the terminal
block(LN part).

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 9/27
Water pump wiring
1. Open the lid of the electrical.
2. Secure the wire to the terminal
block (PN part)
5. Electrical Wiring
5.1 DC INVERTER SWIMMING POOL HEAT PUMP WIRING DIADRA
NOTE:
(1)The above electrical wiring diagrams are only for your reference, please subject the heat pump to
the posted wiring diagram.
(2)The swimming pool heat pump must be earthed well, although the unit heat exchanger is electri-
cally isolated from the rest of the unit .Earthing the unit is still required to protect you against short
circuits inside the unit .Bonding is also required.

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 10/27
Disconnect: A disconnect (circuit breaker, fused or un-fused switch) should be located within sight
of and easily accessible from the unit .This is common practice on commercial and residential heat
pumps. It prevents remotely-energizing unattended equipment and permits turning off power to the
unit while the unit is being serviced.
6. Display Controller Operation
6.1 OVERVIEW
The controller is specially designed for the swimming pool heat pump series, with features as below:
• Heating and cooling mode;
• Could show and change the running and setting parameters of the system,easy for user to install
and test.
• With automatic protection and fault warning function ;
• With strong system protection function, like compressor delay protection, high pressure, low
pressure, sensor protection,water flow detect etc;
• The communication distance between the heat pump unit and remote controller shouldn’t be less
than 100 meters. Communication port is 485 communication.
• Strong anti-interference, stable performance.
6.2 BASIC MODEL OF SYSTEM CONTROL CHART
System Chart
Outdoor unit Remote Controller
Control Principle
• The Outdoor unit is run according to the remote controller’s order
• The remote controller could change the running parameters and send the running parameters
to the outdoor unit
• The outdoor unit could detect the running condition and send the info or fault to the remote
controller

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 11/27
6.3 REMOTE CONTROLLER LCD WIRE CONTROLLER WITH WIFI
Basic Icons
1. Heating mode, display symbol
2. Cooling mode, display symbol
3. When water pump is running display symbol
4. “Powerful” operation mode display symbol“POWERFUL”
5. “Silent” operation mode display symbol“SILENT”
6. “Smart” operation mode display symbol“SMART”
7. 7. When compressor is running display symbol
8. When defrosting, the display indicates defrosting operation.
9. When the fan is running, it will display
10. When the WiFi connection is successful will be on for a long time, it will flashing when
there is no connection or in the connection.
11. When the crankshaft electric heating is on, it will display
12. Display when the screen is locked

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 12/27
13. flashes when appear the error code.
6.4 KEY OPERATING INSTRUCTION
6.4.1 : ON /OFF button.
Short press to exit and return to the main interface. In the main interface, long press and hold
the key for 3 seconds to turn on / off.
6.4.2 : Mode button
In the power on state, long press for 3 seconds to switch the working mode: heating mode and
cooling mode.
6.4.3 : Add button
When its turn on ,in the main interface, press to adjust the setting temperature of current mode;
6.4.4 : Reduce button
When its turn on ,in the main interface, press to adjust the setting temperature of current mode
6.4.5 Parameters Query
In the main interface, Long press and hold the button for 3 seconds to enter the heat pump status
parameter query, Type .buttons for reading different parameters, and press the
button to exit the parameter query.

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 13/27
Heat pump status Parameter table
Inquiry Code Description Display Range
A01 Inlet water temp -30–99°C
A02 Outlet water temp -30–99°C
A03 Ambient temp -30–99°C
A04 Discharge temp 0–125°C
A05 Suction temp -30–99°C
A06 Outer coil temp -30–99°C
A07 Inner coil temp -30–99°C
A08 Main EV opening 0–480
A09 Assistant EV opening 0–480
A10 Compressor current
A11 Radiator temp
A12 DC bus voltage
A13 Compressor actual rotate
speed
6.4.7 Clock settings
Press the button to enter the clock setting state. First, the hour bit flashes, indicating that
the hour value of the current time can be adjusted through the , . buttons. Every time you
press the button add for one hour, every time you press the button reduce for one hour.
If you hold down the button or button for a long time, the hours will be incremented or
decremented automatically. After setting the hour value, press . again. At this time, the minute
flashes, indicating that the minute value of the current time can be adjusted through
button. After setting the minute value, press again to finish.
6.4.8 Timing settings:
Long press button for 3 seconds to enter timing setting:

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 14/27
Enter timing selection, when timing on 1” clock „flashes, hours can be set with . and then
press button to switch to clock” minute „, minutes can be set with i . button
Press the button again to switch to the setting of „timing off 1”: the clock „time” flashes, hours
can be set with and then press the button again to switch to the clock „minute”,
minutes can be set with button. Other time periods are set and so on;
6.4.9 Number of set timing periods
Press to exit or confirm. Press in the main interface to display the current number of set timing
periods;
6.5 Cancel timing setting
When the set power-on time and power-off time are the same, cancel the timing setting of the current
time period.
6.5.1 Enforced Defrosting
Press at the same time for 5 seconds, then it enter into enforced defrosting mode.
When entering into defrosting appears.
6.5.2 Operation mode switching
Long press and on the main interface for 3 seconds to switch operation mode: Powerful,
Smart and Silent mode.
6.5.3 Celsius / Fahrenheit switch:
In the off state, press and for 3 seconds in the main interface to switch between Celsius
and Fahrenheit.
6.5.4 Manual electric heating function
Press for 3 seconds in the main interface to turn on / off the electric heating function manually.

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 15/27
6.5.5 System parameter setting:
Long Press and hold the + button for 5 seconds to enter the password input state. The
time display position displays „0000”. Press the or button to enter the password, and then
press the key to switch the password bit. When entering the last password, press the , key
to confirm the password. Enter the 4-digit password „0814”, and enter the system parameter setting
after the buzzer rings twice.
7. System Parameter
Parameter
Code Parameter Name Set Range Factory Setting
P1 Return Difference for
Target Water Temp. od 1°C do 18°C 1°C
P2 Set Temp. in Cooling Mode od 8°C do 35°C 27°C
P3 Set Temp. in Heating Mode od 5°C do 40°C 40°C
P4 Compensation Value of Inlet Water Temp. od -5°C do 15°C 0°C
P5 Defrosting Cycle 20–90 min 45 min
P6 Defrosting Start Temp. od -9°C do -1°C -3°C
P7 Defrosting Time 5–20 min 8 min
P8 Temp.to Quit Defrosting od 1°C do 40°C 20°C
P9 Difference between Ambient Temp. and Coil
Temp. to Start Defrosting od 0°C do 15°C 5°C
P10 Ambient Temp. to Start Defrosting od 0°C do 20°C 17°C
P11 Electronic Expansion Valve’s Working Cycle 20–90 s 30 s
P12 Overheat Degree in Smart/ Powerful Mode od -5°C do 10°C Depends on Actual
Model
P13 Exhaust Gas Temp. of Electronic Expansion
Valve od 70°C do 125°C 95°C
P14 Electronic Expansion Valve’s Steps during
Defrosting (Set Value*10=Actual Steps) 2–45 Depends on Actual Model
P15 Electronic Expansion Valve’s Min. Steps(Set
Value*10=Actual Steps) 5–15 10
P16 Electronic Expansion Valve’s Working Mode 0 Manual/1 Auto 1
P17 Manual Steps of Electronic Expansion Valve
(Set Value*10=Actual Steps) 2–45 35

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 16/27
P18 Overheat Degree in Cooling
Mode od -5°C do 10°C Depends on Actual
Model
P19 Reserved / /
P20 Electronic Expansion Valve’s Working Mode
When Cooling
0=Water
Temperature
1=Supercooling
0
P21 Water Pump’s Working Mode
When Target Temperature Reached
1= Non Stop
2= Stop
3=Intermittent
3
P22 Fan’s Working Mode 0=Auto
1= Manual 0
P23 Fan’s Manual Control Speed
(Set Value*10=Actual Speed)
0-99
(Set Value*10=Actual
Speed)
80
(Set Value*10=Actual
Speed)
P24 Ambient Temp. to Start Auxiliary Electric
Heater od -20°C do 20°C -20°C
P25 Auxiliary Heating Function in Defrosting
Mode Reserved Reserved
P26 Low temperature protection value od -20°C do 0°C -20°C
Note: In the above table, the actual value of the electronic expansion valve and the air speed is 10
times of the parameter displayed value. For example, when the P20 defrost expansion valve opening
degree shows 30, the actual value at this time is 300 steps;when P30fan manual rotation speedshows
80, the actual value at this time is 800.
Restore factory settings
In the shutdown state, press and hold the , , , at the same time for 3 seconds to
restore the factory settings by wire control. At this time, the buzzer will ring twice continuously, and
all parameter values will change back to the default values.

User and Service manual DC Inverter Swimming Pool Heat Pump KENSOL KTB 17/27
8. Troubleshooting
8.1 BŁĘDY SYSTEMU/WSKAZANIA BŁĘDÓW
Error code Error description Solutions
Er 03 water flux failure Check water flow /switch
Er 04 winter anti-freezing Water pump will run automatically for first
grade antifreeze
Er 05 high pressure failure
1. Discharge redundant refrigerant from heat
pump gas system
2. Clean the water exchanger or water fifter
Er 06 low pressure failure
1.Check if there is any gas leakage ,re-fill the
refrigerant
2.Replace the filter or capillary
Er 09 communication failure between Display and
PCB
1. Check if the communication connection wire
between display and PCB is disconnected or has
poor contact. Change the wire or mend it if yes.
2. Check if PCB or display is damaged. Change
the corresponding part if yes.
Er 10
communication failure of frequency conver-
sion module(alarm when communication
between display and PCB are disconnected)
Change PCB.
Er 12 excessive exhaust temp protection
1. Replace the compressor discharge tempera-
ture sensor.
2. Reconnect or clean compressor discharge
temperature sensor and wrap it with insulation
tape.
Replace the controller or PC Board.
Er 15 Water inlet temperature failure Check or change the sensor
Er 16 external coil temperature failure Check or change the sensor
Er 18 exhaust temperature failure Check or change the sensor
Er 19 DC Fan motor failure
1. Check if DC fan motor is damaged. Change it
if damaged.
2. Check if DC fan motor output port on PCB has
output. Change PCB if no output.
Er 20 Abnormal protection of frequency
conversion module
Solve it according to the subsidiary error codes
in the following table.
Er 21 ambient temperature failure Check or change the sensor
Er 23 too low cooling outlet water temp protection Check whether the water flow or water system
is jammed or not
Er 27 water outlet temperature failure Check or change the sensor