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LTDC

“Large” Temperature Difference Controller for complex systems. For 42 basic systems with additional functions for unused relays, VFS and RPS flow and pressure metering, remote control and data logging via external data logger. It can be equipped with or without speed-control of standard pumps, high-efficiency pumps or both.

ltdc

Inputs

  

Outputs

Sorel Connect

Menu Languages

  

LTDC
Sensor inputs PT1000 6
Relay outputs 230V 3
Relay output voltage-free
Outputs 0..10V or PWM signal
for speed control of high-efficiency pumps
2
Number of applications 42+
Extension of pre-defined systems
by selectable additional functions
LEDs red/green for display of operating status
Statistics and graphic analysis of data memory
Flow based heat metering via Grundfos direct sensor (VFS / VVX) 2
Pressure monitoring via Grundfos direct sensor (RPS) 2
Battery-backed Real Time Clock > 24h
Time and Temperature-controlled thermostat function
Legionella function via solar
Legionella protecion via additional heating
Cooling function
Setup wizard
System protection
Collector protection
Storage protection (CP Tmax)
Anti-freeze protection
Recooling
Start logic for vacuum tube collectors
Control program for self-dumping systems (drain-back)
Function control and error memory with date and time
Menu blocker
Power supply for universal voltage range (100…240VAC) and reduced standby consumption
CAN bus connection for SOREL Connect
Data logging on microSD card via data logger
Ethernet connection via data logger
Dimensions Height x Width x Depth in mm 163 x 110 x 51
Housing colour RAL 9003
Protection Class IP40
Mounting Hardware, Spare Fuse and User Manual

 

speicherumladung
Storage transfer
feststoffkessel_speicher
Solid fuel boiler with storage
solar_pool
Solar with pool
solar_speicher
Solar with storage
ruecklaufanhebung
Return flow increase
solar_wt_pool
Solar with heat exchanger (sensor in secondary circuit) and pool
absperrventil
Stop valve
deltaT
Universal DeltaT
thermostatfunktion
Thermostat function
solar_kuehlung3_rgb
Solar with cooling 3 (storage cooling)
solar_kuehlung2_rgb
Solar with cooling 2 (collector cooling)
solar_kuehlung_rgb
Solar with cooling 1 (collector cooling)
solar_feststoffkessel_rgb
Solar with solid-fuel boiler
solar_thermostat_ventil_rgb
Solar with thermostat and valve
solar_pool_wt_rgb
Solar with pool and heat exchanger
solar_umladung_rgb
Solar with storage transfer
solar_2speicher_ventil_rgb
Solar with 2 storages and valve
solar_2speichern_2pumpen
Solar with 2 storages and 2 pumps
solar_2kollektoren_2pumpen
Solar with 2 collector surfaces and 2 pumps
solar_2kollektoren
Solar with 2 collector surfaces
solar_wt
Solar with heat exchanger
solar_bypass
Solar with bypass
solar_heizkreis
Solar with heating circuit
solar_2zonenspeicher
Solar with two-zone storage
solar_thermostat_zusatzheizung
Solar with thermostat (auxiliary heating)
solar_wt_zonenventil_rgb
Solar with heat exchanger and valve
solar_wt_2speicher_rgb
Solar with heat exchanger and 2 storages
solar_speicher_feststoffkessel_rgb
Solar with storage and solid fuel boiler
2solar_rgb
2x Solar
solar_thermostat_speicherumladung_rgb
Solar with thermostat and storage transfer
solar_thermostat_ruecklaufanhebung_rgb
Solar with thermostat and return flow increase
solar_2kollektor_2speicher_2ventile_rgb
Solar with 2 collector surfaces, 2 storages and 2 valves
solar_2kollektoren_2speicher_2pumpen_rgb
Solar with 2 collector surfaces, 2 storages and 2 pumps
solar_2kollektoren_2pumpen_wt_rgb
2 x Solar with storage, 2 pumps and heat exchanger
solar_2kollektoren_umschaltventil_wt_rgb
2x Solar with storage, switching valve and heat exchanger
solar_pool_speicher_wt_ventil_rgb
Solar with pool, storage, heat exchanger and valve
solar_3speicher_3pumpen_rgb
Solar with 3 storages and 3 pumps
solar_3speicher_2ventile_rgb
Solar with 3 storages and 2 valves
solar_wt_speicher_grosssysteme_rgb
Solar with storage and heat exchanger for large systems
solar_wt_zonenventil_speicher_grosssysteme_rgb
Solar with storage, heat exchanger and valve for large systems
solar_wt_zonenventil_2speicher_grosssysteme_rgb
Solar with 2 storages, heat exchanger and valve for large systems

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