Altherma EKHBH016AB User manual

technical data
EKHBH/X016AB
EEDEN08-720
Altherma

EKHBH016AB EKHBX016AB
W
mm
mm
mm
mm
mm
mm
kg
kg
kg
Heating kPa 52.5 52.5
Cooling kPa 55.9
W
l
l/min
Heating (3) l/min 32.1 32.1
Cooling (2) l/min 28.7
l/min
l
bar
bar
mm
inch
inch
bar
l
mm
mm
dBA
dBA
°C -20~35 -20~35
°C 10~46
°C 15~55 15~55
°C 5~22
W
mm
mm
mm
mm
mm
mm
kg
kg
Packing Material EPS
Material Wood
Material Carton
Material PP (Straps)
Weight Machine weight 55
Gross Weight 65
922
Width 502
Depth 361
Dimensions Packing Height 1225
Width 660
Depth 610
Unit Height (1)
Casing Colour RAL9010
Material Epoxy polyester painted galvanised steel
Outdoor units ERHQ014AAV3
Nominal input (Indoor only) 230
Operation
range
Ambient Heating
Cooling
Waterside Heating (5)
Cooling
Sound Level Sound Pressure (5) 28
Sound Power
Total water volume (6) 5.5
Refrigerant
Circuit
Gas side diameter 15.9
Liquid side diameter 9.52
Yes
Shut off valve Yes
Air purge valve Yes
Water circuit Piping connections diameter 1-1/4'' MBSP
Piping 1-1/4''
Safety valve 3
Manometer Yes
Drain valve / Fill valve
Water filter Diameter perforations 1
Material Brass
Expansion
vessel
Volume 10
Max. water pressure 3
Pre pressure 1
Water flow rate Max. 58
Insulation material Polyurethane foam
Water side
Heat
exchanger
Type Brazed plate
Qty 1
Water volume 1.01
Water flow rate Min. 16
Water flow
rate Nom.
10
Main
components
Pump Type Water cooled
Nr. of speed 2
Nominal ESP
unit
Power input 210
Packing Material EPS
Material Wood
Material Carton
Material PP (Straps)
Weight
Weight Machine weight 55
Gross Weight 65
922
Width 502
Depth 361
Dimensions Packing Height 1225
Width 660
Depth 610
Unit Height (1)
Casing Colour RAL9010
Material Epoxy polyester painted galvanised steel
Outdoor units ERHQ011AAV3
Nominal input (Indoor only) 230
TECHNICAL SPECIFICATIONS

kg
Heating kPa 43.5 43.5
Cooling kPa 49.1
W
l
l/min
Heating (3) l/min 40.1 40.1
Cooling (2) l/min 35.8
l/min
l
bar
bar
mm
inch
inch
bar
l
mm
mm
dBA
dBA
°C -20~35 -20~35
°C 10~46
°C 15~55 15~55
°C 5~22
W
mm
mm
mm
mm
mm
mm
kg
kg
kg
Heating kPa 35.0 35.0
Cooling kPa 46.8
W
l
l/min
Heating (3) l/min 45.9 45.9
Cooling (2) l/min 37.6
l/min
l
bar
bar
mm
inchWater circuit Piping connections diameter 1-1/4'' MBSP
Water filter Diameter perforations 1
Material Brass
Expansion
vessel
Volume 10
Max. water pressure 3
Pre pressure 1
Water flow rate Max. 58
Insulation material Polyurethane foam
Water side
Heat
exchanger
Type Brazed plate
Qty 1
Water volume 1.01
Water flow rate Min. 16
Water flow
rate Nom.
10
Main
components
Pump Type Water cooled
Nr. of speed 2
Nominal ESP
unit
Power input 210
Packing Material EPS
Material Wood
Material Carton
Material PP (Straps)
Weight
Weight Machine weight 55
Gross Weight 65
922
Width 502
Depth 361
Dimensions Packing Height 1225
Width 660
Depth 610
Unit Height (1)
Casing Colour RAL9010
Material Epoxy polyester painted galvanised steel
Outdoor units ERHQ016AAV3
Nominal input (Indoor only) 230
Operation
range
Ambient Heating
Cooling
Waterside Heating (5)
Cooling
Sound Level Sound Pressure (5) 28
Sound Power
Total water volume (6) 5.5
Refrigerant
Circuit
Gas side diameter 15.9
Liquid side diameter 9.52
Yes
Shut off valve Yes
Air purge valve Yes
Water circuit Piping connections diameter 1-1/4'' MBSP
Piping 1-1/4''
Safety valve 3
Manometer Yes
Drain valve / Fill valve
Water filter Diameter perforations 1
Material Brass
Expansion
vessel
Volume 10
Max. water pressure 3
Pre pressure 1
Water flow rate Max. 58
Insulation material Polyurethane foam
Water side
Heat
exchanger
Type Brazed plate
Qty 1
Water volume 1.01
Water flow rate Min. 16
Water flow
rate Nom.
10
Main
components
Pump Type Water cooled
Nr. of speed 2
Nominal ESP
unit
Power input 210
Weight

inch
bar
l
mm
mm
dBA
dBA
°C -20~35 -20~35
°C 10~46
°C 15~55 15~55
°C 5~22
Hz
V
A
Hz
V
A
Wiring For power Quantity of wires 3G
0.15 + j0.09
Voltage
Range
Minimum -10%
Maximum +10%
Current Running Current 26
Zmax List
Text 0.25 + j0.15
Zmax electric
heater +
booster
heater
(EKHWS*
Models)
List
Text
Electric
heater
Type 6V3
Power
Supply
Phase 1~
Frequency 50
Voltage 230
Wiring
Connections
For power
supply
backup
heater
Quantity of wires 3G
Type of wires
Select diameter and type according to
national and local regulations
Text 0.25 + j0.15
Voltage
Range
Minimum -10%
Maximum +10%
230
Current Running Current 13
Zmax List No requirements
Text
Zmax electric
heater +
booster
heater
(EKHWS*
Models)
List
ELECTRICAL SPECIFICATIONS
Electric
heater
Type 3V3
Power
Supply
Phase 1~
Frequency 50
Voltage
Notes
(5) 15°C-25°C: BUH only, no Heatpump
operation=during commissioning.
Notes
(6) Including piping+PHE+backup
heater/excluding expansion vessel.
Notes (3) DB/WB 7°C/6°C-LWC 35°C(DT=5°C)
Notes
(4) The sound pressure level is measured
via a microphone at 1m from the unit. It is a
relative value, depending on the distance
and acoustic environment. The sound
pressure level mentioned is valid for pump
medium speed.
Notes
(1) With option kit EKHBDP installed:
Height=936mm
Notes (2) Tamb 35°C - LWE 7°C (DT=5°C)
Operation
range
Ambient Heating
Cooling
Waterside Heating (5)
Cooling
Sound Level Sound Pressure (5) 28
Sound Power
Total water volume (6) 5.5
Refrigerant
Circuit
Gas side diameter 15.9
Liquid side diameter 9.52
Yes
Shut off valve Yes
Air purge valve Yes
Piping 1-1/4''
Safety valve 3
Manometer Yes
Drain valve / Fill valve

Hz
V
A
Hz
V
A
Hz
V
A
Hz
V
ACurrent Running Current 22.6
Zmax List Out of scope
Text
Electric
heater
Type 9T1
Power
Supply
Phase 3~
Frequency 50
Voltage 230
Wiring
Connections
For power
supply
backup
heater
Quantity of wires 4G
Type of wires
Select diameter and type according to
national and local regulations
Text
Voltage
Range
Minimum -10%
Maximum +10%
Current Running Current 13
Zmax List No requirements
Text
Zmax electric
heater +
booster
heater
(EKSWW*
Models)
List No requirements
Electric
heater
Type 9WN
Power
Supply
Phase 3~
Frequency 50
Voltage 400
Wiring
Connections
For power
supply
backup
heater
Quantity of wires 4G
Type of wires
Select diameter and type according to
national and local regulations
Text
Voltage
Range
Minimum -10%
Maximum +10%
Current Running Current 15.1
Zmax List Out of scope
Text
Zmax electric
heater +
booster
heater
(EKHWS*
Models)
List Out of scope
Electric
heater
Type 6T1
Power
Supply
Phase 3~
Frequency 50
Voltage 230
Wiring
Connections
For power
supply
backup
heater
Quantity of wires 4G
Type of wires
Select diameter and type according to
national and local regulations
Text
Voltage
Range
Minimum -10%
Maximum +10%
Current Running Current 8.7
Zmax List No requirements
Text
Zmax electric
heater +
booster
heater
(EKHWS*
Models)
List No requirements
Electric
heater
Type 6WN
Power
Supply
Phase 3~
Frequency 50
Voltage 400
Connections supply
backup
heater
Type of wires
Select diameter and type according to
national and local regulations

Type of wires
Select diameter and type according to
national and local regulations
Voltage: 230V/Maximum current:
100mA/Minimum 0,75 mm²
Connection type For connection with M3S
Quantity of wires 3G or 4G
Quantity of wires 3G
Type of wires
Select diameter and type according to
national and local regulations
Voltage: 230V/Maximum current:
100mA/Minimum 0,75 mm²
Type of wires
Select diameter and type according to
national and local regulations
Voltage: 230V/Maximum current:
100mA/Minimum 0,75 mm²
Connection type For connection with M2S
Connection type For connection with A3P
Quantity of wires Depends on thermostat type, refer to
installation manual EKHBH/X016AB*
Quantity of wires Wire included in option EKHWS*
Type of wires Wire included in option EKHWS*
Wiring
Connections Connection type For power supply connection to Optional Warm Water Tank + Q2L
Quantity of wires 3G
Type of wires
Select diameter and type according to
national and local regulations
For more details of the voltage range and
current refer to installation manual
EKHBH/X016AB*
Connection type For connection with R5T
Wiring
Connections
For power
supply
backup
heater
Quantity of wires 4G
Type of wires
Select diameter and type according to
national and local regulations
Text
Voltage
Range
Minimum -10%
Maximum +10%
Zmax electric
heater +
List Out of scope

3TW57754-1A
EKHBH016AB
Min. 200
Min. 150
(Open) 553
(Closed) 361
Center of gravity
j
1Pump + switch for speed setting
j
2Remocon
j
3Water IN connection: 1 1/4’’ M BSP
j
4Water OUT connection: 1 1/4’’ M BSP
j
5Power supply intake (+ sanitary warm water tank)
j
6Air purge
j
7Expansion vessel+j 7Anipple+j 7B Drain
j
8Blow off valve
j
9Blow off drain (flexible hose J20)
j
10 Pressure gauge
j
11 Water filter
j
12 Suction pipe connection J15.9 flare connection
j
13 Liquid pipe connection J9.52 flare connection
j
14 Shut off valves with drain/fill valve (accessory
delivered with unit)
j
15 Holes for fixation
j
16 Switchbox terminals
j
17 Switchbox terminals option sanitary warm water
tank
j
18 Wallbracket
Service door
Minimum space for service & ventilation
1-1/4″Male BSP
Dimensions
wallbracket
FIXATION
View A
Scale 1/5

3TW57754-2A
EKHBX016AB
Min. 200
Min. 150
(Open) 553
(Closed) 361
Center of gravity
j
1Pump + switch for speed setting
j
2Remocon
j
3Water IN connection: 1 1/4’’ M BSP
j
4Water OUT connection: 1 1/4’’ M BSP
j
5Power supply intake (+ sanitary warm water tank)
j
6Air purge
j
7Expansion vessel+j 7Anipple+j 7B Drain
j
8Blow off valve
j
9Blow off drain (flexible hose J20)
j
10 Pressure gauge
j
11 Water filter
j
12 Suction pipe connection J15.9 flare connection
j
13 Liquid pipe connection J9.52 flare connection
j
14 Shut off valves with drain/fill valve (accessory
delivered with unit)
j
15 Holes for fixation
j
16 Switchbox terminals
j
17 Switchbox terminals option sanitary warm water
tank
j
18 Wallbracket
Service door
Minimum space for service & ventilation
1-1/4″Male BSP
Dimensions
wallbracket
FIXATION
View A
Scale 1/5
Dimensions wallbracket Scale 1/5

EKHBH(X)016AB
3TW57755-1
Expansion
Vessel
Check Valve Flare Conn. Screw Conn. Flange Conn. Pinched Pipe Spinned Pipe
Pressure
Gauge
Drain
Safety
Valve Air
Purge
Electric
Heater Body
Blow Off
Pump R1T
R2T
Flowswitch
Shut Off Valve
With Drain/Fill Valve
Evaporator
Condensor
Refriferant
Side
Plate
Heat
Exchanger
Cooling (EKHBX)
Heating (EKHBX + EKHBH)
Refr. Out
Refr. In
R3T
R4T
Filter
Shut Off Valve
With Drain/Fill Valve
Field Installation
Field Installation
Water Outlet
Water Inlet
Water Site
Inlet water Thermistor
Refrigerant Liquid Side Thermistor
Outlet Water Backup heater Thermistor
Outlet Water Heat-exchanger Thermistor
Description
R4T
R3T
R2T
R1T
Thermistor
Refr. In
Refr. Out

3TW57816-2
EKHBH(X)016AB3V3
Outdoor unit
Power supply
230V 1N∼50Hz
>> See note 2 <<
User interface
Only forEKHW*V3
Option
Thermostat
On/Off
Option
Field wiring
Wiring dependent
on model
Wire colour
See note 7
For EKHWSU*V3 Option
NO valve
NC valve
heating cooling
230V AC
supply from
PCB
Only for EKSWW
option
Only for EKHW Option
Only for EKSOLHWAV1
Option
Domestic hot
water tank
Electric heater option fuse
F1B 20A
EKHW kit fuse
F2B 20A
Domestic hot
water tank
See note 7
For EKHWSU*V3
Option
Solar pump
connection
Only for EKRP1HB
Option
Alarm output
Unit on/off output Solar input
Spring
return type
3wiretype
(SPST)
Only
for EKHW*V3
Option
See note 9
Field wiring
PCB
See note 8
Notes:
1 This wiring diagram only applies to the indoor unit.
2
Use one and same dedicated power supply for indoor ubit, outdoor unit and EKHW option.
3 :Field wiring No/No normal open/normal closed SPST - single pole single throw.
4 :Terminal strip :Connector :Terminal :Protective earth
5 Do not operate the unit by short-sircuiting any protection device.
6 BLK: Black / WHT: White / RED: Red / BLU: Blue / PINK: Pink / YLW: Yellow
BRN: Brown / GRY: Grey / GRN: Green / ORG: Orange / VIO: Violet
7 For EKHWSU*V3, refer to option manual
8 Option PCB works with an external 230V AC power supply unit.
9 For EKSOLHWAV1, refer to option manual
X1M-X4M : Terminal strips
V2S : Spark suppression 2
V1S : Spark suppression 1
FU1 : Fuse 3.15A T 250V
FU2 : Fuse 5A T 250V
FuS, FuR : Fuse 5A 250V for solar/remote alarm PCB
Q1DI : Earth leakage protector
Q2L : Thermal protector booster heater
Q1L : Thermal protector backup heater
S1S : Solar pumpstation relay
SS1 : DIP switch
TR1 : Transformer 24V for PCB
R5T : Domestic hot water thermistor
R4T : Inlet water thermistor
R3T : Refrigerant liquid side thermistor
R2T : Outlet water backup heater thermistor
R1T : Outlet water heat-exchanger thermistor
S1L : Flowswitch
E4H : Booster heater
E1H : Backup heater element 1
M3S : 3way valve: floorheating/domestic hot water
M2S : 2 way valve for cooling mode
M1P : Pump
PHC1 : Aplocoupler input circuit
K5M : Contactor for backup heater all-pole
disconnection
K7M : Relay for solar pump
K4M : Pump Relay
K3M : Contactor booster heater
K1M : Contactor backup heater Step 1
F2B : Fuse booster heater
F1B : Fuse backup heater
F1T : Thermal fuseBack up heater
A4P : Solar/remote alarm PCB
A3P : Thermostat (PC-power circuit)
A2P : User interface PCB
A1P : Main PCB
Only for EKHW*V3 Option

3TW57816-3
EKHBH(X)016AB6V3
Outdoor unit
Power supply
230V 1N∼50Hz
>> See note 2 <<
User interface
Only forEKHW*V3
Option
Thermostat
On/Off
Option
Field wiring
Wiring dependent
on model
Wire colour
See note 7
For EKHWSU*V3 Option
NO valve
NC valve
heating cooling
230V AC
supply from
PCB
Only for EKSWW
option
Only for EKHW
Option
Only for EKSOLHWAV1
Option
Domestic hot
water tank
Electric heater option fuse
F1B 32A
EKHW kit fuse
F2B 20A
Domestic hot
water tank
See note 7
For EKHWSU*V3
Option
Solar pump
connection
Only for EKRP1HB
Option
Alarm output
Unit on/off output
Solar input
Spring return
type
3wiretype
(SPST)
Only
for EKHW*V3
Option
See note 9
Field wiring
PCB
See note 8
Notes:
1 This wiring diagram only applies to the indoor unit.
2
Use one and same dedicated power supply for indoor ubit, outdoor unit and EKHW option.
3 :Field wiring No/No normal open/normal closed SPST - single pole single throw.
4 :Terminal strip :Connector :Terminal :Protective earth
5 Do not operate the unit by short-sircuiting any protection device.
6 BLK: Black / WHT: White / RED: Red / BLU: Blue / PINK: Pink / YLW: Yellow
BRN: Brown / GRY: Grey / GRN: Green / ORG: Orange / VIO: Violet
7 For EKHWSU*V3, refer to option manual
8 Option PCB works with an external 230V AC power supply unit.
9 For EKSOLHWAV1, refer to option manual
F2B : Fuse booster heater
F1B : Fuse backup heater
F1T : Thermal fuseBack up heater
A4P : Solar/remote alarm PCB
A3P : Thermostat (PC-power circuit)
A2P : User interface PCB
A1P : Main PCB
X1M-X4M : Terminal strips
V2S : Spark suppression 2
V1S : Spark suppression 1
FU1 : Fuse 3.15A T 250V
FU2 : Fuse 5A T 250V
FuS, FuR : Fuse 5A 250V for solar/remote alarm PCB
Q1DI : Earth leakage protector
Q2L : Thermal protector booster heater
Q1L : Thermal protector backup heater
S1S : Solar pumpstation relay
SS1 : DIP switch
TR1 : Transformer 24V for PCB
R5T : Domestic hot water thermistor
R4T : Inlet water thermistor
R3T : Refrigerant liquid side thermistor
R2T : Outlet water backup heater thermistor
R1T : Outlet water heat-exchanger thermistor
S1L : Flowswitch
E4H : Booster heater
E1H-E2H : Backup heater element 1-2
M3S : 3way valve: floorheating/domestic hot
water
M2S : 2 way valve for cooling mode
M1P : Pump
PHC1 : Aplocoupler input circuit
K5M : Contactor for backup heater all-pole
disconnection
K7M : Relay for solar pump
K3M : Contactor booster heater
K1M/K2M : Contactor backup heater Step 1/2
Only for EKHW*V3 Option

3TW57816-4
EKHBH(X)016AB6WN/9WN
Outdoor unit
Power supply
3(/N)-400(/230V) 50Hz
>> See note 2 <<
User interface
Only forEKHW*V3
Option
Thermostat
On/Off
Option
Field wiring
Wiring dependent
on model
Wire colour
See note 7
For EKHWSU*V3 Option
NO valve
NC valve
heating cooling
230V AC
supply from
PCB
Only for EKSWW
option
Only for EKHW
Option
Only for EKSOLHWAV1
Option
Domestic hot
water tank
Domestic hot
water tank
See note 7
For EKHWSU*V3
Option
Solar pump
connection
Only for EKRP1HB
Option
Alarm output
Unit on/off output
Solar input
3wiretype
(SPST)
Spring
return type Only
for EKHW*V3
Option
See note 9
Field wiring
PCB
See note 8
Domestic hot
water tank
Only for EKHW*Z2
Option
Electric heater option fuse
Model 6WN 9WN
F1B 16A 20A
EKHW kit fuse
F2B 20A
Only forEKHW*Z2
Option
Domestic hot
water tank
Notes:
1 This wiring diagram only applies to the indoor unit.
2
Use one and same dedicated power supply for indoor ubit, outdoor unit and EKHW option.
3 :Field wiring No/No normal open/normal closed SPST - single pole single throw.
4 :Terminal strip :Connector :Terminal :Protective earth
5 Do not operate the unit by short-sircuiting any protection device.
6 BLK: Black / WHT: White / RED: Red / BLU: Blue / PINK: Pink / YLW: Yellow
BRN: Brown / GRY: Grey / GRN: Green / ORG: Orange / VIO: Violet
7 For EKHWSU*V3, refer to option manual
8 Option PCB works with an external 230V AC power supply unit.
9 For EKSOLHWAV1, refer to option manualCB
Only
for EKHW*V3 Option
X1M-X4M : Terminal strips
V2S : Spark suppression 2
V1S : Spark suppression 1
FU1 : Fuse 3.15A T 250V
FU2 : Fuse 5A T 250V
FuS, FuR : Fuse 5A 250V for solar/remote alarm PCB
Q1DI : Earth leakage protector
Q2L : Thermal protector booster heater
Q1L/Q3L : Thermal protector backup heater
S1S : Solar pumpstation relay
SS1 : DIP switch
TR1 : Transformer 24V for PCB
R5T : Domestic hot water thermistor
R4T : Inlet water thermistor
R3T : Refrigerant liquid side thermistor
R2T : Outlet water backup heater thermistor
R1T : Outlet water heat-exchanger thermistor
S1L : Flowswitch
E4H : Booster heater
E1H-E3H : Backup heater element 1-3
M3S : 3way valve: floorheating/domestic hot
water
M2S : 2 way valve for cooling mode
M1P : Pump
PHC1 : Aplocoupler input circuit
K5M : Contactor for backup heater all-pole
disconnection
K7M : Relay for solar pump
K3M : Contactor booster heater
K1M/K2M : Contactor backup heater Step 1/2
F2B : Fuse booster heater
F1B : Fuse backup heater
F1T : Thermal fuseBack up heater
A4P : Solar/remote alarm PCB
A3P : Thermostat (PC-power circuit)
A2P : User interface PCB
A1P : Main PCB

3TW57816-6
EKHBH(X)016AB6T1/9T1
Outdoor unit
Power supply
3-230V 50Hz
>>Seenote2<<
User interface
Only forEKHW*V3
Option
Thermostat
On/Off
Option
Field wiring
Wiring dependent
on model
Wire colour
See note 7
For EKHWSU*V3 Option
NO valve
NC valve
heating cooling
230V AC
supply from
PCB
Only for EKSWW
option
Only for EKHW
Option
Only for EKSOLHWAV1
Option
Domestic hot
water tank
Electric heater option fuse
Model 6T1 9T1
F1B 20A 32A
EKSWW kit fuse
F2B 20A
Domestic hot
water tank
See note 7
For EKHWSU*V3
Option
Solar pump
connection
Only for EKRP1HB
Option
Alarm output
Unit on/off output
Solar input
3wiretype
(SPST)
Spring
return type Only
for EKHW*V3
Option
See note 9
Field wiring
PCB
See note 8
Notes:
1 This wiring diagram only applies to the indoor unit.
2
Use one and same dedicated power supply for indoor ubit, outdoor unit and EKHW option.
3 :Field wiring No/No normal open/normal closed SPST - single pole single throw.
4 :Terminal strip :Connector :Terminal :Protective earth
5 Do not operate the unit by short-sircuiting any protection device.
6 BLK: Black / WHT: White / RED: Red / BLU: Blue / PINK: Pink / YLW: Yellow
BRN: Brown / GRY: Grey / GRN: Green / ORG: Orange / VIO: Violet
7 For EKHWSU*V3, refer to option manual
8 Option PCB works with an external 230V AC power supply unit.
9 For EKSOLHWAV1, refer to option manual
Only for EKHW*V3 Option
X1M-X4M : Terminal strips
V2S : Spark suppression 2
V1S : Spark suppression 1
FU1 : Fuse 3.15A T 250V
FU2 : Fuse 5A T 250V
FuS, FuR : Fuse 5A 250V for solar/remote alarm PCB
Q1DI : Earth leakage protector
Q2L/Q3L : Thermal protector booster heater
Q1L : Thermal protector backup heater
S1S : Solar pumpstation relay
SS1 : DIP switch
R5T : Domestic hot water thermistor
R4T : Inlet water thermistor
R3T : Refrigerant liquid side thermistor
R2T : Outlet water backup heater thermistor
R1T : Outlet water heat-exchanger thermistor
S1L : Flowswitch
E4H : Booster heater
E1H-E3H : Backup heater element 1
M3S : 3way valve: floorheating/domestic hot water
M2S : 2 way valve for cooling mode
M1P : Pump
PHC1 : Aplocoupler input circuit
K5M : Contactor for backup heater all-pole disconnection
K7M : Relay for solar pump
K3M : Contactor booster heater
K1M/K2M : Contactor backup heater Step 1
F2B : Fuse booster heater
F1B : Fuse backup heater
F1T : Thermal fuseBack up heater
A4P : Solar/remote alarm PCB
A3P : Thermostat (PC-power circuit)
A2P : User interface PCB
A1P : Main PCB

3TW57786-7
Optional parts
Outdoor unit
Backup heater power supply (3/6/9kW): 400V or 230V + earth
NO valve:
NC valve:
Booster heater power supply (3kW): 400V or 230V + earth
Optional power supply
X1M:7-8-Earth
X1M:L-N-Earth
For more details please check unit wiring
diagram
4 core
<10m: 4Gx1.5
>10m: 4Gx2.5
Standard parts
Field supply
4 core
Indoor unit
X1M:1-2-3-Earth
Sanitary tank
R5T - Thermistor
water temperature
2core
Signal
Power supply booster
heater
Power supply
M2S (EKHBX Units)
for cooling mode
Room thermostat
User interface
Q2L - Clixon booster
heater
5core
3 or4 core
3 core
M3S (when EKHW is installed) selection
sanitary-floorheating
2core
2core
2 way valve
3 way valve
Note: min. distance to power cable = 3cm
3 core
Unit power supply: 230V + earth
2 way valve
Q3L
0,3L secondary clixon
2 core
Only for EKHWSU*V3
2 core
2 core
2 core
2 core
X1M:1-2-3-Earth
X1M:L1-L2-L3-N-Earth
X3M:L-N-Earth
X4M:1-2-Earth
Only for EKSOLHWAV1
Only for EKBPHT16
Alarm output
Unit on/off output
Solar input
Only for EKRP1HB & EKSOLHWAV1
Q3L
0,3L secondary clixon
Solar pump
Bottom plate heater option
Spring return
Electrical connection diagram Altherma

COOLING MODE HEATING MODE
outdoor temp (°CDB)
outdoor temp (°CDB)
leaving condensor
water temperature (°C)
leaving evaporator
water temperature (°C)
NO HEAT PUMP OPERATION
BACK UP HEATER ONLY
4TW57753-1A

DOMESTIC HOT MODE
outdoor temp (°CDB)
water temperature
sanitary tank (°C)
BOOSTER HEATER
OPERATION ONLY
4TW57753-1A