Temperature difference controller LTDC
Installation and operating instructions
Read carefully before installation, commissioning and operation
CONTENT
Safety Instructions 4
EU-Conformity 4
General Instructions 4
Explanation of Symbols 4
Changes to the Unit 5
Warranty and Liability 5
Disposal and Pollutants 5
Description LTDC 5
About the Controller 5
Technical Data 6
Scope of Supply 7
Hydraulic Variants 7
Installation 10
Electrical Terminals 10
Electrical Terminals 11
wall Installation 25
Electrical Connection 26
Installing the Temperature Sensors 26
Temperature Resistance Table for Pt1000 Sensors 26
Operation 27
Display and Input 27
Commissioning help 28
1. Measurement values 28
2. Statistics 29
Operating hours 29
Heat quantity 29
Graphic overview 29
Message Log 29
Reset / Clear 29
3. Operating Mode 30
Auto 30
Manual 30
Aus 30
4. Settings 30
Tmin S1 30
Priority Storage X 30
ΔT Solar S(X) 31
Tmin S2 31
Tmin Storage X 31
Priority temperature 31
Loading time 31
Increase 31
5. Protective Functions 32
System protection 32
Collector protection 32
Recooling 32
Frost Protection 32
Seizing Protection 32
Collector alarm 33
Pressure Monitoring 33
6. Special Functions 33
Program selection 33
Pump settings 33
Signal type 33
Profile 33
Speed control 33
Variant 33
Purging time 34
Sweep time 34
Max. Speed 34
Min. Speed 34
Setpoint 34
Relay functions 34
Solar bypass 35
Solar bypass 35
Variant 35
Bypass sensor 35
Thermostat 35
Tset 35
Hysteresis 35
Thermostat sensor 1 35
Thermostat sensor 2 35
Teco 35
Energy Saving Mode 35
Thermostat enable 35
Cooling 36
Tset 36
Hysteresis 36
Cooling sensor 36
Release times 36
Return flow increase 36
Return flow increase 36
Return flow increase Tmax 36
∆T Return flow 36
Return flow sensor 36
Storage sensor 36
Field cooling 36
Field cooling sensor 36
Hys max 37
Hys min 37
Tmax field 37
Anti-Legionella 37
Heat transfer 37
Heat transfer 38
Δ T Heat transfer 38
Heat Transfer Tmax 38
Heat Transfer Tmin 38
Source 38
Drain 38
Difference 38
Difference 38
Δ T Difference 38
DF-Source 38
Tmin Source 38
DF-Drain 38
Tmax Drain 38
Solid fuel boiler 38
Solid fuel boiler Tmin 38
ΔT Solid fuel boiler 39
Solid fuel boiler Tmax 39
Boiler sensor of this function 39
Storage sensor 39
Error Messages 39
Error message 39
Pressure monitor 39
Pressure monitor 39
RPS-Type 39
RPS Min 39
RPS Max 39
Booster Pump 39
Booster Pump 39
Charge time 40
Parallel operation R1/R2 40
Parallel operation 40
Delay 40
Follow-up time 40
Always on 40
Heating circuit 40
Room sensor 40
Room Reference (Night) 40
Room Reference (Day) 40
Release Times 40
Heat quantity 40
Flow temperature sensor (X) 41
Return flow sensor 41
Glycol type 41
Glycol percentage 41
Flow rate supply flow (X) 41
Offset ∆T 41
VFS (X) 41
VFS - Position 41
Reference sensor 41
Sensor Calibration 41
Commissioning 41
2
Factory settings 42
Time & Date 42
Starting aid 42
Purging time 42
Increase 42
Global radiation sensor 42
Radiation sensor 42
Radiation intensity 42
Blocking time 42
Daylight saving time 42
Eco Display Mode 42
Temperature unit 43
Network 43
Access Control 43
Ethernet 43
CAN bus ID 43
Sensor send interval 43
7. Menu Lock 44
8. Service Values 44
9. Language 44
Malfunctions/Maintenance 45
Additional Information 46
External relay at signal output V(X) (0-10V / PWM) 46
CAN bus 46
Drain Back 46
Appendix 47
Signal 47
Profile 47
Output Signal 47
PWM / 0-10V off 47
PWM / 0-10V on 47
PWM / 0-10V max. 47
Speed when „On“ 47
Example for signal settings 47
Technical data PWM and 0-10V 48
Show signal 48
Tips 48
Final Declaration 49
3
Safety Instructions
EU-Conformity
By affixing the CE mark to the unit the manufacturer declares that theLTDC conforms to the following relevant safety regulations:
lEU low voltage directive 2014/35/EU
lEU electromagnetic compatibility directive 2014/30/EU
conforms. Conformity has been verified and the corresponding documentation and the EU declaration of conformity are kept on file by the
manufacturer.
General Instructions
Please read carefully!
These installation and operating instructions contain basic instructions and important information regarding safety, installation, com-
missioning, maintenance and the optimal use of the unit. Therefore these instructions must be read and understood completely by the install-
ation technician/specialist and by the system user before installation, commissioning and operation of the unit.
This unit is an automatic, electrical Temperature difference controller for/insolar or heating system and similar applications. Install the unit
only in dry areas and under the ambient conditions described in “Specifications”.
The valid accident prevention regulations, VDE regulations, the regulations of the local power utility, the applicable DIN-EN standards and
the installation and operating instruction of the additional system components must also be observed.
Under no circumstances does the unit replace any safety devices to be provided by the customer!
Installation, electrical connection, commissioning and maintenance of the device may only be carried out by an appropriately trained spe-
cialist. Users: Make sure that the specialist gives you detailed information on the function and operation of the unit. Always keep these instruc-
tions in the vicinity of the unit.
The manufacturer does not take over any liability for damage caused through improper usage or non-compliance of this manual!
Explanation of Symbols
Danger
Failure to observe these instructions can result in electrocution.
Danger
Failure to observe these instructions can result in serious damage to health such as scalding or life-threatening injuries.
Caution
Failure to observe these instructions can result in destruction of the unit or the system, or environmental damage.
Caution
Information which is especially importation for the function and optimal use of the unit and the system.
Changes to the Unit
lChanges, additions to or conversion of the unit are not permitted without written permission from the manufacturer.
lIt is likewise forbidden to install additional components that have not been tested together with the unit.
lIf it becomes clear that safe operation of the unit is no longer possible, for example because of damage to the housing, turn the Unit off
immediately.
lAny parts of the unit or accessories that are not in perfect condition must be exchanged immediately.
lUse only original spare parts and accessories from the manufacturer.
lMarkings made on the unit at the factory must not be altered, removed or made illegible.
lOnly the settings described in these instructions may be set using the Unit.
Changes to the unit can compromise the safety and function of the unit or the entire system.
Warranty and Liability
The unit has been manufactured and tested with regard to high quality and safety requirements. The unit is subject to the statutory guar-
antee period of two years from the date of sale. The warranty and liability shall not include, however, any injury to persons or material dam-
age that is attributable to one or more of the following causes:
lFailure to observe these installation and operating instructions.
lImproper installation, commissioning, maintenance and operation.
lImproperly executed repairs.
lUnauthorised structural changes to the unit.
lUse of the device for other than its intended purpose.
lOperation above or below the limit values listed in the ‚Specifi cations‘ section.
lForce majeure.
Disposal and Pollutants
The unit conforms to the European RoHS 2011/65/EU for the restriction of the use of certain hazardous substances in electrical and elec-
tronic equipment.
Under no circumstances may the device be disposed of with the normal household waste. Dispose of the unit only at appro-
priate collection points or ship it back to the seller or manufacturer.
Description LTDC
About the Controller
The Temperature difference controller LTDC facilitates efficient use and function control of your solar or heating system possible while its
handling is intuitive. After every input step the suitable functions are matched to the keys and explained in a text above. In the menu 'meas-
urement values and settings' are help text and graphics in addition to key words.
The LTDC can be used for the various system variants, See " Hydraulic Variants " on page 7
Important characteristics of the LTDC are:
lDepiction of graphics and texts using a lit display.
lSimple viewing of the current measurement values.
lStatistics and system monitoring by means of statistical graphics
lExtensive setting menus with explanations.
lMenu block can be activated to prevent unintentional setting changes.
lResetting to previously selected values or factory settings.
Technical Data
Electrical specifications:
Power Supply 100 - 240VAC,50 - 60 Hz
Power consumption / standby 0,5 W - 2,5 W/0,5 W
Internal fuse 1 1
Protection Class IP40
Protection Class II
Overvoltage category II
Degree of pollution category II
Inputs/Outputs Measuring range
Sensor inputs 6 Pt1000 -40 °C ... 300 °C
Sensor inputs
Flow sensors
2 Grundfos Direct Sensor or SIKA Vortex
Flow Sensor
0°C - 100°C | 2...40 l/min
VFS type in l/min 1 - 20, 2 - 40, 5 - 100, 10 - 200, 20 - 400
RPS type in bar 0 - 0.6, 0 - 1, 0 - 1.6, 0 - 2.5, 0 - 4,
0 - 6, 0 - 10
VVX 15 in l/min 2 - 40
VVX 20 in l/min 5 - 80
VVX 25 in l/min 7 - 150
Version 1 Version 2 Version 3 Version 4
Pt1000 Measuring range -40 °C ... 300 °C 5 5 6 6
Sensor input VFS / RPS 0 0 2 2
mechanical relay as alternating contact (R)
460VA for AC1 / 460W for AC3
1 1 1 1
mechanical relay 230V 2 1 2 0
electronic relay min. 5W ... max. 120W for AC3 0 2 0 2
0-10V output (Tolerance +/- 10%) 10 kΩ load V1 V1 V1-V2 V1-V2
PWM output freq. 1 kHz, level 10 V V1 V1 V1-V2 V1-V2
Max. Cable Length
Collector sensor S1 < 30 m
Flow sensors < 3 m
CAN < 3 m; at >= 3 m, a shielded twisted pair cable must be used. Isolate shielding and
connect it to the protective conductor of only one of the devices. Max. cable length
of the complete system 200 m.
0-10V/PWM < 3 m
Interface
Fieldbus CAN
Permissible Ambient Conditions
for controller operation 0 °C - 40 °C, max. 85 % rel. humidity at 25 °C
for transport/storage 0 °C - 60 °C, no moisture condensation permitted
Other Specifications and Dimensions
Housing Design 2-part, ABS plastic
Installation Methods Wall installation, optionally panel installation
Overall dimensions 163 mm x 110 mm x 52 mm
Aperture installation dimen-
sions
157 mm x 106 mm x 31 mm
Display Fully graphical display, 128 x 64 dots
Light diode multicolour
Real Time Clock RTC with 24 hour power reserve
Operation 4 entry keys
Scope of Supply
lSolar multi-circuit controllers LTDC
l3 screws 3,5 x 35 mm and 3 plugs 6 mm for wall installation.
l6 strain relief clips with 12 screws, replacement fuse 1 x T2A / 250V
lLTDC installation and operating instructions
Optionally contained depending on design/order:
lPt1000 temperature sensor and submersing cases
lCAN Bus Accessories: Datalogger with Ethernet connection
Hydraulic Variants
The following illustrations should be regarded only as schematic representations of the respective hydraulic systems and do not claim to be complete. Under no cir-
cumstances should the controller replace any safety devices. Depending on the specific application, additional system and safety components such as check
valves, non-return valves, safety temperature limiters, scalding protectors, etc., may be required.
For 3-way valves, the flow direction in energized state (relay active) is shown in the used hydraulic version.
Solar with reservoir Solar with pool Solid fuel boiler with storage
Storage transfer Heating circuit return flow increase Thermostat
Universal Delta T Shutoff valve Solar with pool and heat exchanger 1
Solar with thermostat (auxiliary heat-
ing)
Solar with two-zone storage Solar with heating circuit
Solar with bypass Solar with heat exchanger Solar with 2 collector surfaces
Solar with 2 collectors and 2 pumps Solar with 2 storages and switching valve Solar with 2 storages and 2 pumps
Solar with storage transfer Solar with pool and heat exchanger 2 Solar with thermostat and switching valve
Solar and solid-fuel boiler Solar with cooling 1 (collector cooling) Solar with cooling 2 (collector cooling)
Solar with cooling 3 (collector cooling) Solar with heat exchanger, two-zone stor-
age and valve
Solar with heat exchanger, 2 storages
and valve
Solar with pool, storage and heat
exchanger
Solar with storage and solid-fuel boiler
and S4
2x Solar
Solar with thermostat and heat trans-
fer
Solar with thermostat and return flow
increase
Solar with 2 collector surfaces, 2 storages
and 2 valves
Solar with 2 collector surfaces, 2 stor-
ages and 2 pumps
Solar with pool, storage and heat
exchanger
Solar with 3 storages and 3 pumps
Solar with 3 storages and 2 switching
valve
Solar with heat exchanger Solar with heat exchanger, two-zone storage
and valve
Solar with heat exchanger, 2 storages
and valve
Solar with 2 collector surfaces, heat
exchanger and 3 pumps
Solar with 2 collector surfaces, heat exchanger
and 2 pumps
Installation
Electrical Terminals
Low voltages
max. 12 VAC / DC
Mains voltages
230 VAC 50 - 60 Hz
On the control board
LTDC Version V3 + V4:
VFS1 Grundfos Direct Sensor
VFS2 Grundfos Direct Sensor
LTDC Version V1 + V4:
CAN CAN bus connection (1=high,2=low)
CAN CAN bus connection (1=high,2=low)
Terminal: Connection for:
S1 Temperature Sensor 1
S2 Temperature Sensor 2
S3 Temperature Sensor 3
S4 Temperature Sensor 4
S5 Temperature Sensor 5
V1 speed controlled output for 0-10V / PWM high-effi-
ciency pumps
LTDC Version V3 + V4:
V2 0-10V / PWM signal output e.g. for con-
trolling high-efficiency pumps
S6 Temperature Sensor 6
+12V Power supply
The connection of the ground wire is made at the lower gray terminal
block.
Terminal: Connection for:
N Neutral conductor N
L Network outer conductor L
R1 Relays 1
R2 Relays 2
R3| Relays 3|
R3 Relays 3
The neutral conductor N must be connected to the N terminal
block.
The PE protective conductor must be connected to the PE metal
terminal block!
In high-efficiency pumps with 0-10V / PWM signal input, the power
supply must go through the corresponding relay (V1 -> R1, R2 ->
V2), because the relay turns on and off together with the control
signals.
At R3I are permanently 230v when the relay is inactive. Wrong wiring can damage the connected components.
"Connection of PWM pumps"
PWM pumps are connected to the controller with 2 wires 1) PWM Input (default: brown) 2) GND (default: blue). Some pumps have
a third wire (PWM Output Signal (default: black)). This is not used for the connection!
Electrical Terminals
For high-efficiency pumps with 0-10V / PWM signal input, the power can be provided (V1 parallel operation) over a free relay.
The connection of the ground wire is made at the lower gray terminal block. The neutral conductor N is connected to terminal
block N. The PE protective conductor must be connected to the PE metal terminal block!
Program 1 Solar with storage
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Storage sensor R1 Solar pump
V1 Solar pump
Program 2 Solar with pool
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Pool sensor R1 Solar pump
V1 Solar pump
Program 3 Solid fuel boiler with storage
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Sensor solid fuel boiler L Network outer conductor L
S2 Storage sensor R1 Storage loading pump
V1 Storage loading pump
Program 4 Storage transfer
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Storage sensor L Network outer conductor L
S2 Storage sensor R1 Storage loading pump
V1 (optional)
Program 5 Heating circuit return flow increase
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Return flow
sensor
R3| (NC) optional instead of R3
R3 Return flow increase (NO)
Shown valve state: R3I with current, R3 without current
Program 6 thermostat
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Storage sensor
(top)
L Network outer conductor L
S2 Storage sensor bot-
tom
R3| (NC) optional instead of R3
R3 Thermostat (NO)
Program 7 ΔT Universal
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 DF-Source L Network outer conductor L
S2 DF-Drain R1 Temperature difference
V1 (optional)
Program 8 Shutoff valve
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Flow temperature
sensor
L Network outer conductor L
S2 Storage sensor R3| (NC) optional instead of R3
R3 Valve (NO)
Program 9 Solar with heat exchanger and pool
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor
L
S2 Pool sensor R1 Pump
S4 Pool flow sensor
V1 Pump
Program 10 Solar with thermostat
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer con-
ductor L
S2 Storage sensor bot-
tom
R2 Solar and pool pump
S3 Storage sensor (top) R3| (NC) optional instead of
R3
V1 Solar and pool pump R3 Thermostat (NO)
Program 11 Solar with 2 zone storage
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor
L
S2 Storage sensor
(top)
R1 Solar pump
S3 Storage sensor bot-
tom
R3| (NC) optional instead of
R3
V1 Solar pump R3 Switchover to zone S3
(NO)
Shown valve state: R3I with current, R3 without current
Program 12 Solar with return flow increase
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor
L
S2 Storage sensor bot-
tom
R1 Solar pump
S3 Storage sensor
(top)
R3| (NC) optional instead of
R3
S4 Return flow sensor R3 Return flow increase (NO)
V1 Solar pump
Shown valve state: R3I with current, R3 without current
Program 13 Solar with bypass
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Storage sensor R1 Solar pump
S3 Flow temperature
sensor
R3| (NC) optional instead of R3
V1 Solar pump R3 Bypass active (NO)
Shown valve state: R3I with current, R3 without current
Program 14 Solar with heat exchanger
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Storage sensor R1 Solar pump
S4 Flow temperature
sensor
R2 Storage loading pump
V1 Solar pump
V2 Storage loading
pump
Program 15 Solar with 2 collector surfaces
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Storage sensor R1 Solar pump
S5 Collector sensor R3| (NC) optional instead of R3
V1 Solar pump R3 Switchover to collector S5 (NO)
Shown valve state: R3I with current, R3 without current
Program 16 Solar with 2 collector surfaces and 2 pumps
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor
L
S2 Storage sensor R1 Pump (collector S1)
S5 Collector sensor R2 Pump (collector S5)
V1 Pump (collector S1)
V2 Pump (collector S5)
Program 17 Solar with 2 storages and switching valve
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Storage sensor R1 Solar pump
S3 Storage sensor R3| (NC) optional instead of R3
V1 Solar pump R3 Switchover to storage S3 (NO)
Shown valve state: R3I with current, R3 without current
Program 18 Solar with 2 storages and 2 pumps
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Storage sensor R1 Pump (S2)
S3 Storage sensor R2 Pump (S3)
V1 Pump (S2)
V2 Pump (S3)
Program 19 Solar with transfer
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Storage sensor bottom R1 Solar pump
S3 Storage sensor (top) R2 Storage loading pump
S4 Storage top
V1 Solar pump
V2 Storage loading pump
Program 20 Solar with pool and heat exchanger
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Pool sensor R1 Solar pump
S4 Pool flow sensor R2 Pool pump
V1 Solar pump
V2 Pool pump
Program 21 Solar with domestic hot water reheating
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor
L
S2 Storage sensor bot-
tom
R1 Solar pump
S3 Storage sensor (top) R3| (NC) optional instead of
R3
V1 Solar pump R3 Deactivate DHW reheat-
ing (NO)
Shown valve state: R3I with current, R3 without current
Program 22 Solar and solid-fuel boiler
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer con-
ductor L
S2 Storage sensor R1 Solar pump
S3 Sensor solid fuel
boiler
R2 Solid fuel boiler
pump
V1 Solar pump
V2 Solid fuel boiler pump
Program 23 Solar with collector field cooling (overheating)
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Storage sensor R1 Solar pump
V1 Solar pump R2 Cooling
Program 24 Solar with collector cooling according to set temperature
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor
L
S2 Storage sensor R1 Solar pump
V1 Solar pump R3| (NC) optional instead of
R3
R3 Cooling (NO)
Program 25 Solar with storage cooling according to target temperature
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer con-
ductor L
S2 Storage sensor bottom R1 Solar pump
S3 Storage sensor (top) R2 Cooling
V1 Solar pump
V2 Cooling
Program 26 Solar with heat exchanger, 2-zone storage and valve
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Storage sensor (top) R1 Pump
S3 Storage sensor bot-
tom
R2 Storage loading pump (sys-
tem separation)
S4 Flow temperature
sensor
R3| (NC) optional instead of R3
V1 Solar pump R3 Loading storage S2 (NO)
V2 Storage loading
pump (system sep-
aration)
Shown valve state: R3I with current, R3 without current
Program 27 Solar with heat exchanger, 2 storages and valve
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor
L
S2 Storage sensor R1 Solar pump
S3 Storage sensor R2 Storage loading pump
(system separation)
S4 Flow temperature
sensor
R3| (NC) optional instead of
R3
V1 Solar pump R3 Loading storage S2 (NO)
V2 Storage loading pump
(system separation)
Shown valve state: R3I with current, R3 without current
Program 28 Solar with pool, storage and heat
exchanger
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Storage sensor R1 Solar pump
S3 Pool sensor R3| (NC) optional instead of R3
S4 Pool flow sensor R3 Switchover and loading pool
(NO)
V1 Solar pump
Shown valve state: R3I with current, R3 without current
Program 29 Solar and solid-fuel boiler and S4
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Storage sensor bottom R1 Solar pump
S3 Sensor solid fuel boiler R2 Solid fuel boiler pump
S4 Storage sensor (top)
V1 Solar pump
V2 Solid fuel boiler pump
Program 30 2 x Solar
Terminal: Connection: Terminal: Connection:
- GND N Neutral conductor N
S1 Collector sensor L Network outer conductor L
S2 Storage sensor R1 Pump collector S1
S3 Storage sensor R2 Pump collector S5
S5 Collector sensor
V1 Pump collector S1
V2 Pump collector S5
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