Vaillant VRC 700f/4 Installation Instructions

Appendix
0020237057_01 Installation instructions 27
Appendix
A Setting values for basic system diagram, VR 70 and VR 71
A.1 Basic system diagram configuration
Each heating installation is based on a system diagram with corresponding connection diagram. A separate basic diagram
book contains the basic system diagrams and the corresponding wiring diagrams with explanations.
A.2 Gas-/oil-fired condensing boiler (eBUS)
Cylinder Equipment Heating cir-
cuits
Set value for
Basic sys-
tem dia-
gram
VR 70 VR 71
Monovalent domestic hot water
cylinder or combi cylinder
Cylinder charging using the condensing
boiler
1 direct 1
Monovalent domestic hot water
cylinder or combi cylinder
Cylinder charging using the condensing
boiler
Low loss header for heating circuits only
1 direct
1 mixed
1 1
Monovalent domestic hot water
cylinder or combi cylinder
Cylinder charging using the condensing
boiler
Low loss header for heating circuits only
2 mixed 1 5
Monovalent domestic hot water
cylinder or combi cylinder
Cylinder charging using the condensing
boiler
Low loss header for heating circuits only
3 mixed 1 3
Monovalent domestic hot water
cylinder or combi cylinder
Low loss header for heating circuits and
domestic hot water cylinders
1 direct
1 mixed
2 1
Monovalent domestic hot water
cylinder or combi cylinder
Low loss header for heating circuits and
domestic hot water cylinders
3 mixed 2 3
A.3 Gas-/oil-fired condensing unit (eBUS) and solar hot water support
Cylinder Equipment Heating cir-
cuits
Setting for
System
diagram
VR 70 VR 71
Bivalent domestic hot water cylin-
der
Cylinder charging using a condensing unit
and solar heat
1 direct 1 6
Bivalent domestic hot water cylin-
der
Cylinder charging using a condensing unit
and solar heat
3 mixed 1 2
A.4 Gas-/oil-fired condensing unit (eBUS) and solar hot water and heating support
Cylinder Equipment Heating cir-
cuits
Setting for
System
diagram
VR 70 VR 71
Combi storage tank Hydraulic block
Low loss header for heating circuits only
1 mixed 2 12
Combi storage tank Hydraulic block
Low loss header for heating circuits only
3 mixed 2 2
allSTOR buffer cylinder Buffer cylinder charging using a condens-
ing unit and solar heat
1 mixed 1 3
allSTOR buffer cylinder Buffer cylinder charging using a condens-
ing unit and solar heat
3 mixed 1 6

Vaillant VRC 700f/4 Specifications

General

Brand	Vaillant
Model	VRC 700f/4
Category	Heat Pump
Language	English