User Manual

18
2. 2-pipe fan coil units with heating / cooling changeover
and RXB room controllers
Partial air conditioning plant for rooms where the room temperature shall be kept constant by
heating or cooling the supply air.
This plant description describes a complete application with 2 rooms, covering the genera-
tion of heat or refrigeration, 2-pipe flow temperature control and 2-pipe fan coil units in the 2
rooms. The water temperature in the fan coil units is controlled according to the demand for
heat or cooling energy from the rooms. The setpoints and operating modes are controlled
from a central location.
Plant diagram
Heating or refrigeration plant
Generation of heat or
refrigeration
Flow temperature control
2-pipe systems
Room application
Room air handling
S01
S1
F3
F2
T
F1
T
B2
T
E1
M1
F10
B7
Y1
M2
F20
HB0001 H6B HQ
(basic type H4-0)
M11
p
B21
M7
RMS705B
No standard application available
M4
12
S5
S01
T
B11
M
Y5
C0B001 U1B HQ
(basic type C)
RMB795B
No standard application available
Q1
YR
D1
D2
T
D3
T
D4
YHC
T
B1
R1
T
XFNC03 B22 HQ
Q1
D1 D2
T
D3
YHC
M
YM
T
D4
T
B1
R1
T
XFNC10 B21 HQ