Installation Instructions

Appendix
0020147164_04 aroTHERM Installation instructions 29
Appendix
A Overview of accessories
System diagrams
8E 8F 9B* 9A* 10A 10B 10C 11A*
12A** 12B**
Auxiliary heat generator
VWZ MEH 60 X X X X
VWZ MEH 61
Heat generator X X X X
Heat generator without
eBUS/external heat
generator
X
Frost protection
Without heat exchanger X X X X X X
VWZ MWT 150 X X X X
Decoupling/cylinder
Without decoupling module X X X X X
VWZ MPS 40 X X X X
External cylinder X
Hot water generation
Heat generator with hot
water generation
X
Domestic hot water cylinder X X X X X
Solar-powered domestic hot
water cylinder
X
Bivalent domestic hot water
cylinder (heat pump and heat
generator)
X X
Zone/heating circuit con-
trol
1-zone/heating circuit X X X
2-zone/heating circuit X X X X X
1- or 2-zone/heating circuit X X
*) With VR470/4 only
**) If the installation is not carried out correctly and no auxiliary heat generator is installed, this may affect the comfort level.