Heat pump demand (optional)
Communication protocols: Modbus/RTU, Modbus/TCP und BACnet/IP
Data logging, storing, firmware updates and easy transfer of controller adjustments prepared via SD card
Cooling over the heating circuit with condensation detection
Dew point calculation by means of the FRH(d) humidity sensor to avoid condensation
Remote access to the heating circuits via the Web interface or the room control unit(s)
Up to 5 extension modules via VBus® (56 sensors and 40 relays in total)

Max. number of collector fields	3¹
Max. number of stores	5¹
Weather-compensated heating circuits	2 (7²)
External heat exchanger
Speed control of standard pumps
Speed control of HE pumps
■ via integrated PWM output
■ via PSW adapter

Hardware
Temperature sensor inputs	15
Sensor type	Pt1000, Pt500, KTY
Inputs for Grundfos Direct Sensors™	analogue, digital
Input for CS10 irradiation sensor
Impulse inputs for V40 flowmeter	4
Relay outputs in total	15
■ semiconductor relays (speed control)	13 (13)
■ electromechanical relay	-
■ potential-free relay with changeover contact	1
■ potential-free relay with normally open contact	1
■ potential-free high-current relay	-
PWM outputs	4
■ convertible to 0-10 V	4
Real-time clock
Data interface	VBus^®, SD card slot, 10 / 100 Base TX Ethernet, Auto MDIX, WLAN 2.4~2.4835 GHz, Modbus RTU (optional)
Energy-efficient SMPS
Power supply	100 ... 240 V~

Heat quantity measurement
■ with flowmeter
■ with V40 flowmeter
■ with Grundfos Direct Sensors™	VFS/VFD

Software functions
Antifreeze function for solar circuit
Collector minimum limitation
Collector emergency shutdown
Store maximum limitation
Store set temperature
Store emergency shutdown
Drainback option
Tube collector function
■ with adjustable time frame, interval
Additional ΔT control
Thermostat function
Target temperature
Heat dump function
Heat exchange
Store loading in layers
Priority loading
■ Parallel loading
■ Store sequence control
■ Progressive loading
■ Successive loading
■ Spreaded loading
Solar circuit bypass
Irradiation-dependent bypass
Irradiation switch
Afterheating suppression
Parallel relay	solar, freely selectable
Twin pump for solar circuit
Cooling functions and cooling mode
Flow rate monitoring
Pressure monitoring
Function control	according to VDI 2169
Error relay
DHW hygiene functions
■ DVGW legionella protection	-
■ Thermal disinfection
DHW heating
Heating circuit return preheating
Boiler loading/Zone loading
Solid fuel boiler
Mixer control weather-compensated
Mixer control with target temperature
Circulation
Function block
Heating circuit antifreeze function
Chimney sweeper function for the heating circuit
Room thermostats

DeltaSol® MX Plus

Inputs: 15 Pt1000, Pt500 or KTY temperature sensor inputs (can optionally be used for remote controls, operating mode switches or potentialfree switches), 4 impulse inputs for V40 flowmeters, 2 frequency inputs, 1 CS10 solar cell, 2 analogue inputs for VFS/RPS Grundfos Direct Sensors™ or FRH humidity sensors, 2 digital inputs for VFD/RPD Grundfos Direct Sensors™ or FRHd humidity sensors

Outputs: 15 relays, 13 of them semiconductor relays for pump speed control, 1 potential-free relay, 1 potential-free extra-low voltage relay and 4 PWM outputs (convertible to 0-10 V signal outputs)

PWM frequency: 512 Hz

PWM voltage: 10.5 V

Switching capacity:
1 (1) A 240 V~ (semiconductor relay)
4 (2) A 24 V ⎓ / 240 V~ (potential-free relay)
1 (1) A 30 V ⎓ (potential-free relay)

Total switching capacity: 6.3 A 240 V~

Power supply: 100 – 240 V~ (50 – 60 Hz)

Supply connection: X

Standby: 0.82 W

Temperature controls class: VIII

Energy efficiency contribution: 5 %

Mode of operation: type 1.B.C.Y action

Rated impulse voltage: 2,5 kV

Data interface: RESOL VBus®, SD card slot, 10 / 100 Base TX Ethernet, Auto MDIX, WLAN 2.4~2.4835 GHz, Modbus RTU (optional)

Communication protocols: Modbus/RTU, Modbus/TCP and BACnet/IP

VBus^® current supply: 35 mA

Functions: integrated Web server for configuration and function control, 7 integrated calorimeters, control of weather-compensated heating circuits. Adjustable system parameters and add-on options (menu-driven), balance and diagnostics functions, function control according to VDI 2169

Housing: plastic, PC-ABS and PMMA

Mounting: wall mounting, mounting into patch panels is possible

Indication/Display: full graphic display

Operation: 7 buttons, via the Web interface on the mobile device

Ingress protection: IP 20 / DIN EN 60529

Ambient temperature: 0 … 40 °C

Pollution degree: 2

Dimensions: 253 x 258 x 47 mm

Radiated power: < 100 mW

Maximum altitude: 2000 m above MSL

Fuse: T6.3A

WLAN encryption: WPA / PSK, WPA2 / PSK

Relative humidity: 10 … 90 %

Solar system with external heat exchanger, store loading in layers and backup heating by heat pump

Solar system with 1 store and weather-compensated heating circuit for heating or cooling application of a heat pump as well as dew point calculation by means of the FRH(d) humidity sensor and backup heating by solid fuel boiler

Solar system with combined store, external heat exchanger, weather-compensated heating circuit, return preheating and backup heating

Solar system with external heat exchanger, store loading in layers and backup heating by solid fuel boiler

Solar system with 2 stores, circulation pump control, heat exchange control and weather-compensated heating circuit

Solar system with combined store and swim- ming pool, backup heating, heating circuit loading and return preheating

FRH Humidity sensor (analogue) » incl. JST connection cable

Art. no. 130 003 00|Price on request

RCP12 Room control unit

Name: Multifunction controllers DeltaSol® MX Plus Multifunction controller
Brand: RESOL GmbH
SKU: 11599303
Availability: schema.org

Room control unit for connection to the DeltaSol^® MX (from version 2.0) or DeltaTherm^® HC (from version 1.09) and DeltaTherm^® HC MAX

Art. no. 136 000 50|Price on request

RTA12 Remote control

Remote control for connection to the HKM3 and DeltaSol^® MX, BX Plus, DeltaTherm^® HC/HC MAX or EM Extension Module

Art. no. 136 000 40|Price on request

RTS room control unit

Room control unit

Art. no. 136 001 50|Price on request

EM extension module

Sensor and relay extension module with 5 outputs and 6 inputs

Art. no. 145 440 80|Price on request

Calorimeter extension kits

Calorimeter extension kit 2 (consisting of 2 x FRP30, 1 x V40-15 flowmeter)

Art. no. NULL|Price on request

Documents

Data sheet

Manual (Web interface)

Manual

EU declaration of conformity

Safety instructions

Product photo

Product comparison	DeltaSol^® MX	DeltaSol^® MX Plus
Inputs
Temperature sensors	12	15
Impulse inputs	3	4
Frequency inputs	1	2
CS10 irradiation sensors	1	1
Analogue inputs for Grundfos Direct Sensors™ or FRH humidity sensors	2	2
Digital inputs for Grundfos Direct Sensors™ or FRHd humidity sensors	2	2
Input for central outdoor sensor unit	-	1
Outputs
Semiconductor relays	13	13
Potential-free relay	1	1
Potential-free low voltage relay	-	1
PWM outputs (switchable to 0-10 V signal outputs)	4	4
Interfaces
VBus
SD card slot
LAN	-*
WLAN	-*
Modbus/RTU	-
Communication protocols
Modbus/RTU	-
Modbus/TCP	-*
BACnet/IP	-*
Functions/Features (examples)

DeltaSol^® MX Plus

System examples

Highlights

Functions

Technical data

Accessories

Downloads