Vaillant multiMATIC 700 User guide

No responsibility is taken for the correctness and completeness of this information - Date 05/2015
System diagrams
Online training multiMATIC 700

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System diagram 1
System with boiler: DHW regulation by boiler (except in solar systems)
(System diagram = 1, VR 70 configuration = 3)
2

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System with boiler: DHW regulation by VRC 700
(System diagram = 2, VR 70 configuration = 1)
3
System diagram 2

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3 kW hybrid system (alternative operation mode): DHW only by boiler
(System diagram = 6, no VR 70)
4
System diagram 6

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3 kW hybrid system (parallel operation mode with 2 circuits / zones): DHW only by boiler
(System diagram = 7, VR 70 configuration = 1)
5
System diagram 7

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Standard heat pump system, auxiliary heater requires pump of heat pump, monoenergy (DHW by heat
pump and auxiliary heater or simple hybrid system (DHW by boiler only)
(System diagram = 8, no VR 70)
6
System diagram 8

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Simple hybrid system, auxiliary heater does not require pump of heat pump, DHW by boiler only
(System diagram = 9, VR 70 configuration = 5)
7
System diagram 9

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Heat pump system with heat exchanger, auxiliary heater requires heat exchanger pump, monoenergy
(DHW only by heat pump) (System diagram = 10, no VR 70)
8
System diagram 10

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Standard heat pump system with heat exchanger, auxiliary heater requires pump of heat pump, mono-
energy (DHW by heat pump and auxiliary heater) (System diagram = 11, no VR 70)
9
System diagram 11

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Complete hybrid system, auxiliary heater does not require pump of heat pump (DHW by heat pump and
boiler) (System diagram = 12, VR 70 configuration = 5)
10
System diagram 12

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Complete hybrid system with heat exchanger, auxiliary heater does not require pump of heat pump
(DHW by heat pump and boiler) (System diagram = 13, VR 70 configuration = 1)
11
System diagram 13

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12
Item Description Item Description
1
Heat generator
25
Solar pump unit
2
Heater generator pump
26a
Solar charging system
2a
Swimming pool circulation pump
26b
Drinking water station
2b
CHP system circulation pump
27
Cylinder charging pump
2c
Hot water charging pump
28
Zone valve
3
Heat pump
29
Thermal discharge safety device
3a
Passive cooling assembly
30
Non
-return valve
4
Buffer cylinder
31
Regulating valve
5
Domestic hot water cylinder
32
Cap valve
5b
DHW cylinder with pipe heat exchanger
33
Dirt trap
5c
Multi
-functional cylinder 33a
Sludge separator set
6
Tank in tank
34
Increase in return flow
7
Sequence cylinder
34a
Mixer for increase in return flow
8
Solar combi cylinder
35
Flow Switch
9
Gas cock
36
Thermometer
10
Thermostatic radiator valve
37
Air separator
12
Unit electronics
38
Diverter valve (inside unit)
13
Heat generator control system
39
Thermostat mixing valve
13a
Remote control unit
40
Heat exchanger
13b
Mixer module
42a
Expansion relief valve
13d
Hot water charging controller
42b
Diaphragm expansion tank
13e
System controller
42c
Diaphragm expansion vessel for drinking water
13f
Expansion module
43
Safety group for drinking water connection
13g
Solar module
45
Low loss header
13h
eBUS bus coupler
48
Pressure gauge
14
Swimming pool controller
49
Flow meter (Taco setter)
15
Condensate pump
50
Bypass valve
16
Outside temperature sensor/DCF receiver
51
Hydraulic block
16a
Outside temperature sensor
52
Individual room control valve
17
Drinking water station (DWS)
53
Heat recovery module
18a
Hot water charging sensor
53a
Flexible connections
18b
Cylinder temp. sensor for DHW gener.
56
Heat pump brine filling unit
19
Limit thermostat
57
Brine expansion vessel
20
Flush connection
58
Filling and draining valve
21
Flue gas thermostat
59
Solar automatic air vent with lock
22
Cut
-off relay 60
Purging valve
24
Home unit
63
VFK solar collector
Legend for system diagrams

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13
Item Description
63a
VTK solar collector
64
Solar in
-line vessel
65
Collecting container
66
Pump, cooling circuit
67
3
-way mixer
67a
3
-way mixer, cooling
67b
3
-way mixer, passive cooling assembly
68
Fan coil convector
69
Tundish
70
Air collector
71
VWL 10/3 SA outer unit
72
Suction well pump
84
Swimming pool
93
Compact buffer cylinder
R1
Pump
R2
Pump
R3/R4
Mixer/Pump/Valve
R5/R6
Mixer/Valve
S1
Cylinder/solar temperature sensor/
DJ-sensor
S2
Cylinder/solar temperature sensor/
DJ-sensor
S3
Cylinder/solar temperature sensor/
DJ-sensor
S4
Flow temperature sensor/
DJ-sensor
S5
Flow temperature sensor/
DJ-sensor
S6
Flow temperature sensor/
DJ-sensor
S7
PWM signal
Legend for system diagrams
Drinking water
Domestic hot water
Circulation
Wiring
Heating flow
Heating return
Solar flow
Solar return
Heat source flow
Heat source return
Cooling flow
Cooling return