User Manual

Siemens Building Technologies Application :40 RWD62/40 - 02.2001
HVAC Products RWD62 2
The temperature sensor senses the room conditions and on a rise in temperature
the RWD62 via Y1 analogue output modulates the chilled water valve as
determined by the cooling set point and proportional band (XP) setting.
Cooling sequences
Min V
Ouptut
Voltagee
Cooling Setpoint
Max V
Cool ing
Y1
Load
XP
Y1
G
Y1
S1
D1
GO
Y..
BM
X1 X2MM
RWD62/40
X1
M
M
GO
G
24 V SN
24 V SP
N1
TOOL
PC
G
M
Y2
RWD62
N1 RWD62 controller
X1 Main temperature sensor
S1 Time clock or switch
Y1 Cooling control valve with 0..10Vdc input
PC Personal computer
Description of operation
Function diagram
Connection diagram