JavaScript is required
Multifunction controllers

Multifunction controllers

The RESOL multifunction controllers combine the control of solar systems with the control of heating circuits. Furthermore, the numerous pre-programmed optional functions enlarge the versatile range of applications.Easy combination and parameterisation of pre-programmed functions for several millions of hydraulic variants.
  • Versatile solutions for complex systems
  • Optimum connectivity of components
  • Ideal for hybrid systems and combined systems
  • High operating comfort
DeltaSol® SLTDeltaSol® BX PlusDeltaSol® MXDeltaSol® MX Plus
Max. number of collector fields
2
31
31
31
Max. number of stores
2
41
51
51
Weather-compensated heating circuits
-
(22)
2 (72)
2 (72)
Temperature sensor inputs
4 (54)
8 (94)
12 (154)
15
Inputs for Grundfos Direct Sensors™
analogue
digital
analogue, digital
analogue, digital
Input for CS10 irradiation sensor
-
Impulse inputs for V40 flowmeter
1
1
3
4
Relay outputs in total
4
5
14
15
■ semiconductor relays (speed control)
3 (3)
4 (4)
13 (13)
13 (13)
■ potential-free relay with changeover contact
-
-
1
1
■ potential-free relay with normally open contact
1
1
-
1
PWM outputs
2
2
4
4
■ convertible to 0-10 V
2
2
4
4
Data interface
VBus®, MicroSD card
VBus®, SD card
VBus®, SD card
VBus®, SD card slot, 10 / 100 Base TX Ethernet, Auto MDIX, WLAN 2.4~2.4835 GHz, Modbus RTU (optional)
■ with Grundfos Direct Sensors™
VFS
VFD
VFS/VFD
VFS/VFD
■ Successive loading
-
-
■ Spreaded loading
-
-
Irradiation-dependent bypass
-
Irradiation switch
-
Function control
according to VDI 2169
according to VDI 2169
according to VDI 2169
Mixer control weather-compensated
5
Function block-
Heating circuit antifreeze function
-
5
Chimney sweeper function for the heating circuit
-
5
Room thermostats
-
5
1 system-dependent
2 via EM Extension module(s) in total
3 Optional
4 via switchable impulse inputs
5 via EM Extension module(s)