Rotex HPSU compact (V5) Installation And Maintenance Manual page 71

9 x Hydraulic system connection
Short name
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 (coolant)
10 Fluid pipe (refrigerant)
3-way diverter valve (internal heat generation cir-
3UVB1
cuit)
3UV DHW 3 way diverter valve (hot water/heating)
A1 A1 oil or gas condensing boiler
Control cable AUX switch contact boiler demand
AUX
(see section 4.5.18)
BUxx Backup heater
BV Bypass valve
C Coolant compressor
CW Cold water
DHW Domestic hot water
DSR1 Solar differential temperature regulation
E Expansion valve
FLG FlowGuard regulating valve with flow indicator
FlowSensor - solar flow and feed flow tempera-
FLS
ture measurement
H H ... H Heating circuits
1, 2 m
MAG Diaphragm expansion vessel
MIX 3-way-mixer with drive motor
MK1 Mixer group with high-efficiency pump
Mixer group with high-efficiency pump (PWM
MK2
controlled)
P High-efficiency pump
P Boiler circuit pump
K
P Mixing circuit pump
Mi
P Solar operating pump
S
P Primary circuit pump W
W1
P Secondary circuit pump W
W2
P Circulation pump
Z
PWT Panel heat exchanger (condenser)
RDS2 Pressure station
RoCon BF A1 condensing boiler
RoCon HP Control unit for ROTEX HPSU compact
RoCon M1 Mixer circuit control
RPS4 Solar regulation and pump unit
RPWT1 Plate heat exchanger
RRLQ Exterior heat pump unit
Storage tank incorporation (A1 condensing
SAA1
boiler)
SAK2 Storage tank connection (wood boiler)
SAS1 Sludge and magnetic separator
72
Meaning
+
EX
EX
Short name
SBG A1 Safety module for A1 condensing boiler
SK Solar panel field
SV Safety overpressure valve
Outside temperature sensor
t
AU
RoCon OT1 (see chapter 4.5.10)
Storage tank temperature sensor (heat genera-
t
DHW
tor)
Storage tank temperature sensor (A1 condens-
t
DHW, A1
ing boiler)
t Mixer circuit flow temperature sensor
Mi
T Solar collector temperature sensor
K
T Solar return flow temperature sensor
R
T Solar storage cylinder temp. sensor
S
T Solar flow temperature sensor
V
Thermostatic 3-way valve for return temperature
TMV
increase
V Fan (vaporiser)
VS Protection against scalding VTA32
W External heat generator
EX
Observe instructions concerning electrical con-
nection (see chapter 4.5.14 and 4.5.18)!
Tab. 9-1 Short names in hydraulic drawings
FA ROTEX HPSU compact (V5) •
Meaning