Hydraulic Connection; Hydraulic System Connection - Daikin A2 F Installation And Operating Instructions Manual

8

Hydraulic connection

CAUTION
We recommend equipping the A2 F with plastic gravity
brakes. They are suitable for maximum operating temper-
atures of 95 °C.
8.1

Hydraulic system connection

INFORMATION
A selection of diagrams of the most common systems is
shown below. The arrangements shown are only ex-
amples, and are no substitute for careful system planning.
Please visit our website for more diagrams.
Brief designa-
tion
1 Cold water distribution network
2 Hot water distribution network
3 Heating flow
4 Heating return flow
5 Mixing circuit
7 Check valve, return valve
7a Non-return valves
3UV DHW/ 3-way distribution valve (hot water/heater)
3UV1
3UVB1 3-way mixer valve (heater/internal boiler circuit)
CW Cold water
DHW Domestic hot water
DS Pressure sensor
FLS FlowSensor - flow rate and inflow temperature
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
MK2 Mixer group with high-efficiency pump (PWM-regu-
lated)
P Boiler circuit pump
K
P Mixing circuit pump
Mi
RoCon BF Control A2 F
RoCon M1 Mixer circuit control
SV Safety overpressure valve
t External temperature sensor
AU
t Storage tank temperature sensor
DHW
t Inflow temperature sensor, mixer circuit
Mi
T Inflow temperature sensor
V1
t Internal mixer sensor
V2
t Return flow temperature sensor
R
Abbreviations on hydraulics plans
Daikin/ROTEX A2 F
Oil condensing boiler A2 F
008.1546499_01 – 03/2018 – EN
Meaning
8
Image 8-1 Connection diagram of A2 F with standard equipment
Image 8-2 Connection diagram of A2 F with valve kit
Hydraulic connection
Installation and operating instructions
43