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16

Thermann Installer's Manual

 

Heat Pump Water Heaters

Troubleshooting

 

WARNING Electrocution

Troubleshooting must only be carried out by a qualified contractor. Prior to all work on the appliance, 
isolate it from the power supply.

!

 

Material losses

If you disconnect the appliance from the power supply, it is no longer protected against frost or cor-
rosion.

f

f

Only disconnect the appliance from the power supply for longer periods if you are also draining 
the hot water cylinder.

f

f

For work inside the appliance, remove the appliance cover (see chapter "Cleaning and maintenance

 

/ Re-

moving the appliance cover").

f

f

If necessary, remove the upper section of the casing jacket (see chapter "Maintenance and cleaning / Re-
moving the casing ring").

 

Note

Refit the casing ring after completing the work. See chapter "Maintenance and cleaning / Fitting the 
casing ring").

 

Note

Following an interruption of the power supply, compressor operation remains blocked for at least one 
minute while the appliance initialises.
If the compressor subsequently fails to start, it may be blocked by additional safety devices (motor 
overload relay, high pressure switch). This block can last between 1 and 10

 

minutes.

f

f

See chapter "Troubleshooting" in the Owner's Guide.

Fault display in the programming unit

The "service/fault" symbol on the appliance programming unit indicates the occurrence of a fault when it 
illuminates or flashes. If the symbol is still illuminated or flashing after 12

 

hours, please contact the service 

department.

A permanently illuminated "service/fault" symbol indicates that a fault has occurred, but the heat pump is 
still heating. A flashing "service/fault" symbol indicates that a fault has occurred and the heat pump is no 
longer heating.

"Service/

fault" 

symbol

Possible causes of fault 

Note 

 

Remedy 

 

illumi-
nated 
 
 

The integral sensor is faulty. 
 
 
 

If the integral sensor is faulty, it is set to 
the value of the cylinder top sensor, and 
amount of mixed water is calculated 
using this value. The appliance contin-
ues to deliver heat.

Contact the service department. 
 
 
 

The cylinder top sensor is faulty.

The appliance continues to deliver heat. Contact the service department.

Hot gas temperature sensor faulty The appliance limits the set tempera-

ture to 50

 °

C.

Contact the service department.  

 

Impressed current anode short 
circuit or faulty protective anode 

If the impressed current anode is faulty, 
the appliance is not protected against 
corrosion.

Contact the service department.  
 

 

No communication between con-
troller and programming unit.

The controller carries on running inde-
pendently.

Contact the service department.  

  
 
 

After 70 minutes of defrosting, 
the evaporator temperature has 
not yet reached 3

 °

C. The com-

pressor is not working.

If the fault is continuously displayed, an 
air intake temperature outside the ap-
plication limits may be the cause. 

The fault is cleared automatically once the 
evaporator temperature rises to 3

 °

C.  

 

flashes 

The cylinder top sensor and the 
integral sensor are faulty. The ap-
pliance no longer delivers heat.

The appliance does not permit emer-
gency heating mode. 

Contact the service department.  
  

Air intake temperature sensor 
faulty

  

Contact the service department. Activate 
emergency heating mode.

Evaporator temperature sensor 
faulty 

  

Contact the service department. Activate 
emergency heating mode.

 

The anode current is interrupted. 
The appliance does not heat up.

The appliance does not permit emer-
gency heating mode.

Check the impressed current anode and the 
wiring.

Summary of Contents for X Hybrid 220

Page 1: ...INSTALLER S MANUAL Heat Pump Water Heaters Installation Details Warranty Model Thermann X Hybrid Heat Pump 220 Thermann X Hybrid Heat Pump 300 ...

Page 2: ...ir ing plugs can be used for this The type of isolator must be installed according to the electrical installation regulations Observe the safety measures to prevent contact with dangerous live currents Observe the MCB fuse protection required for the appliance see chapter Specifica tion Data table If the power cable is faulty replace it with a new one The power cable must only be replaced for exam...

Page 3: ...rns burns scalding Keywords KEYWORD Meaning DANGER Failure to observe this information will result in serious injury or death WARNING Failure to observe this information may result in serious injury or death CAUTION Failure to observe this information may result in non serious or minor injury Other symbols in this documentation Note General information is identified by the adjacent symbol f f Read...

Page 4: ...appliance Condensate drain bend 2 straight G1 to G 3 4 pipe adaptors T P valve G 1 2 Reducer from R 3 4 male thread to G 1 2 female thread Required accessories Various safety assemblies are available to protect the appliance against impermissible excess pressure and limit the output delivery temperature Additional accessories Condensate pump if the condensate cannot be drained off with a naturally...

Page 5: ...g the strap Where stair wells are narrow you can carry the appliance by the handles on the sack truck or trolley and the foot of the appliance Vehicular transport Material losses The appliance must generally be stored and transported vertically On tarmac asphalt bitumen or otherwise paved roads you may transport the appliance horizontally over a maximum distance of 160 km Strong shocks are not per...

Page 6: ...hapter Specification Data table Observe the safety clearances and protection zones Always leave sufficient space to provide access for installation maintenance and cleaning Observe the minimum clearances see Preparations Siting the appliance Ensure the operation of other equipment in the installation room is not impaired To keep the water pipe lengths as short as possible we recommend installing t...

Page 7: ...iance is secured to the pallet with metal brackets and screws The metal brackets are hooked on to the feet underneath the floor plate of the appliance 1 2 D0000034798 1 1 Metal bracket fixing screw f f Remove the fixing screws of the metal brackets from the pallet f f Push the metal brackets a little towards the cylinder centre to unhook them from the appliance feet f f Pull the metal brackets out...

Page 8: ...00 500 D0000029620 Installation WARNING Injury Incorrect installation can lead to serious injury or material losses Before any work ensure sufficient clearances for the installation Handle sharp edged components carefully Water connection Material losses Carry out all water connection and installation work in accordance with regulations Material losses The corrosion protection provided by the anod...

Page 9: ...the hot water cylinder The valve protects the appliance against impermissible pressure or temperature rises The diameter of the cold water supply line must be no greater than the diameter of the valve f f Ensure that the expansion water escaping from the valve can drip into a drain e g a funnel tundish Ensure the drain cannot be shut off f f Size the drain pipe so that water can drain off unimpede...

Page 10: ...cannot back up f f Use a condensate drain hose with a diameter greater than the diameter of the condensate drain bend f f Ensure the condensate drain hose is not kinked f f Route the condensate drain hose with a continuous fall The condensate drain must be open to atmosphere f f Use a suitable condensate pump if there is insufficient fall Take the building characteristics into account Condensate p...

Page 11: ...is supplied with a flexible connecting cable without plug f f If the connecting cable is not long enough you may detach from the appliance and replace with a longer suitable cable or extend connection as permitted by regional and national regulations eg use of a junc tion box f f When routing the new connecting cable ensure that it is waterproof as it passes through the existing cable grommet Conn...

Page 12: ... anode and PCB BN Brown BU Blue GNYE Green yellow f f Connect the cables for the separate impressed current anode power supply to X0 1 and X0 2 Material losses The power supply to the impressed current anode must be continuously ensured Connection with external signal transmitter Note This type of connection must only be carried out by a qualified electrician Note The appliance has a second higher...

Page 13: ...20 min minimum compressor idle time f f Remove the appliance cover see chapter Cleaning and maintenance Removing the appliance cover D0000056083 1 2 1 Strain relief 2 Terminal X3 f f Prepare the cables in such a way that each cable terminates with a wire ferrule f f Push the cables through one of the cable entries in the appliance casing f f Route leads through the strain relief f f Connect the ca...

Page 14: ...efit the appliance cover after completing your work See chapter Maintenance and cleaning Fitting the appliance cover Commissioning Initial start up Note Fill the hot water cylinder before switching on the power supply to the appliance The appliance is equipped with boil dry protection to prevent operation if the hot water cylinder is not completely full of water Note Following an interruption of t...

Page 15: ...rrosion when it is disconnected from the power supply At the factory the appliance is fitted with rechargeable batteries that ensure the power supply to the impressed current anode in the case of a power failure The batteries must be replaced by a qualified contractor every three years if the power supply is regularly interrupted by a switching contact or the security of supply is inadequate We re...

Page 16: ...ervice fault symbol indicates that a fault has occurred and the heat pump is no longer heating Service fault symbol Possible causes of fault Note Remedy illumi nated The integral sensor is faulty If the integral sensor is faulty it is set to the value of the cylinder top sensor and amount of mixed water is calculated using this value The appliance contin ues to deliver heat Contact the service dep...

Page 17: ...e power supply As a qualified contractor you can bypass the compressor lockout time and reset several faults Switch the power supply OFF and back ON again via the fuse MCB in the domestic distribution board If the service fault symbol is flashing you can continue to use the appliance temporarily by activating emer gency heating mode Press and hold the Rapid heat up button for two seconds See chapt...

Page 18: ... the screw Torx that attaches the cover to the appliance f f Push the cover upwards D0000040622 f f Carefully remove the cover f f Undo the plug in connection in the electrical cable that runs to the battery pack on the back of the fascia f f Carefully lift away the appliance cover and undo the earth cable that runs from the appliance control panel to the cover Note Refit the appliance cover after...

Page 19: ...ing apart until it can be removed or slid downwards Note Refit the casing ring after completing the work See chapter Maintenance and cleaning Fitting the casing ring Cleaning the evaporator WARNING Injury The evaporator consists of numerous sharp edged fins f f Be careful when cleaning the evaporator and wear protective clothing especially safety gloves In order to maintain the appliance performan...

Page 20: ...ergency booster heater Only descale the flange of the emergency booster heater after disassembly Never treat the inside of the hot water cylinder or the impressed current anode with descaling agents The electric emergency booster heater is screwed into the hot water cylinder of the appliance at a central point at the top D0000039351 1 1 Electric emergency booster heater with protective anode Valve...

Page 21: ...e than 16 hours If the power supply is regularly interrupted by a switching contact or the security of supply is inadequate the rechargeable batteries of the impressed current anode must be replaced every three years Neglecting to do this puts the appliance at risk of damage If regular interruptions in the power supply are not anticipated and there is security of supply no maintenance of the batte...

Page 22: ...he right way round otherwise there will be no corrosion protection in the event of interruptions in the power supply f f Close the battery compartment using a screwdriver f f Push the battery compartment into the retainer f f Reconnect it to the appliance with the plug in connection Fitting the appliance cover WARNING Electrocution f f Reconnect the earth cable to the appliance cover f f Place the...

Page 23: ... 8 24 218 935 c01 c06 c13 D0000074176 Thermann Hybrid 220 b01 Entry electrical cables c01 Cold water inlet Male thread G 1 c06 Hot water outlet Male thread G 1 c13 T P valve Female thread Rp 3 4 d45 Condensate drain Male thread G 3 4 g01 Air intake g02 Air discharge i43 Cover for manufacturing aperture ...

Page 24: ...8 24 g01 g02 i43 218 1287 c01 c06 c13 D0000074178 Thermann Hybrid 300 b01 Entry electrical cables c01 Cold water inlet Male thread G 1 c06 Hot water outlet Male thread G 1 c13 T P valve Female thread Rp 3 4 d45 Condensate drain Male thread G 3 4 g01 Air intake g02 Air discharge i43 Cover for manufacturing aperture ...

Page 25: ...18 T2 T3 T4 X3 X2 N1 L N LL2 L L1 V2 L N V1 HD ND N1 X4 X11 X12 X10 X16 X9 X6 X5 X23 X20 X22 X21 X17 coat cap storage tank BN BU 1 2 A B N1 F1 R1 E1 G1 5 3 2 2 2 2 1 2 2 2 4 3 2 1 5 3 L1 L1 L1 LHZ LHZ LM1 LM1 LL1 2 3 2 p F3 F4 storage tank S1 S2 X3 X2 X4 A3 X1 C2 4 8 V F5 X3 2 1 2 3 X4 1 2 3 F 100 mA 250 V X2 A2 X1 F 100 mA 250 V housing A3 D0000073800 ...

Page 26: ... temperature with heat pump C 65 65 Max hot water temperature with emergency booster heater C 63 63 Min max application limits of heat source for heat pump op eration C 5 42 5 42 Min max application limits for cylinder ambient temperature C 5 55 5 55 Min installation room floor area m 6 6 Min installation room volume m 13 13 Maximum permissible operating pressure cold water hot water MPa 0 85 0 85...

Page 27: ...r mm 690 690 Height when tilted mm 1692 2034 Height when tilted incl packaging mm 1895 2230 Packing unit dimensions height width depth mm 1740 740 740 2100 740 740 Weight Weight empty kg 120 135 Connections Condensate connection G 3 4 G 3 4 Safety valve connection Rp 3 4 Rp 3 4 Water connection G 1 G 1 Values Type of anode Maintenance free impressed current anode Maintenance free impressed current...

Page 28: ...4 AMHCMO cifjfd A 328595 40181 9262 B 328593 40181 9262 ...

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