62
FA ROTEX HPSU monobloc compact • 09/2017
9
x
Hydraulic system connection
Short name
Meaning
1
Cold water distribution network
2
Hot water distribution network
3
Heating flow
4
Heating return flow
5
Mixer circuit (optional)
6
Circulation (optional)
7
Check valve, return valve
7a
Non-return valves
8
Solar circuit
9
Gas pipe (refrigerant)
10
Fluid pipe (refrigerant)
3UVB1
3-way switch valve (internal heat generator cir-
cuit)
3UV DHW
3-way switch valve (hot water / heating)
BUxx
Backup heater
C
Refrigerant compressor
CW
Cold water
DHW
Domestic hot water
E
Expansion valve
FLS
FlowSensor - solar throughput and inflow tem-
perature measurement
H
1,
H
2
… H
m
Heating circuits
MAG
Diaphragm expansion vessel
MIX
3-way-mixer with drive motor
MK1
Mixer group with high-efficiency pump
MK2
Mixer group with high-efficiency pump (PWM-
regulated)
P
High-efficiency pump
P
Mi
Mixing circuit pump
P
S
Solar operating pump
+
P
Z
Circulation pump
PWT
Panel heat exchanger (condenser)
RoCon mb
Controller for ROTEX HPSU monobloc compact
RoCon M1
Mixer circuit control
RPS4
Solar control and pump unit
RPWT1
Plate heat exchanger
RRLQ
Heat pump outdoor unit
SAS1
Sludge and magnetic separator
SK
Solar panel field
SV
Safety overpressure valve
t
AU
Outside temperature sensor (optional)
t
DHW
Storage tank temperature sensor (heat genera-
tor)
t
Mi
Inflow temperature sensor, mixer circuit
t
K
Solar collector temperature sensor
t
R
Solar return flow temperature sensor
T
V
Solar flow temperature sensor
V
Fan (vaporiser)
VS
Scalding protection VTA32
Observe notes on electrical connection (see
chap. 4.5.11 and 4.5.15)!
Tab. 9-1 Abbreviations on hydraulics plans