Johnson Controls RA-3 Series Service And Data Information page 23

111 6041 010 E
Condition at delivery:
Actuator fitted to valve
Valve configuration
PDTC
PDTO
Mixing valve
Diverting valve
The following is set:
Control-valve without positioner
Terminal connection 1 + 2:
Terminal connection 1 + 3:
Control-valve with positioner
•
Standard –factory setting 0-10V (possible to change setting to 0-20mA through jumper)
•
Span 100%
•
Start-point 0%
•
The following is given with 24V∼ connected and a control signal of 0-10V DC (0-20mA)
• The action mode switch is set as follows:
Valve
Action mode
configuration
PDTC
PDTO
Mixing valve
Diverting valve
Model with feedback potentiometer and auxiliary switches:
The following is set:
With the actuator stem extended the nominal value of the potentiometer can be measured between contacts
10 and 12.
The cams for the auxiliary switches"S3" and "S4" are not set from the factory and so, on delivery, have no
function. The switches "S3" and "S4" are therefore free for user implementation.
Order information for retrofit kit
Installation instructions included.
Aux. switch and 2 kΩ position feedback potentiometer
Cable adapter 20, black, EN 50262
M20 x 1.5 nickel plated brass nut
Valve setting
Open
Open
Inlet 1 - outlet Open
Inlet – outlet1 Open
Actuator stem is extended.
Actuator stem is retracted.
0 Volt (0mA) = Valve closed
10 Volt (20mA) = Valve open
DA (switch position II) for two-way PDTC, mixing and bypass valves.
RA (switch position I) for two-way PDTO valves.
Valve position at
0 Volt control signal
DA
RA
DA Inlet 1 - outlet Open
RA Inlet – outlet1 Open
Description
Actuator stem
Retracted
Extended
Extended
Retracted
Open
Open
Code
ER2
-
-
5 E
Actuator stem
Extended
Retracted
Extended
Extended
Order code
EQ-5687-7011
282 3703 202
282 3802 202