10
RTHC-SVN02C-EN
4-20 mA Signal
1.
Remove the 250 ohm resistor, factory mounted on the 4U1 module between
the
-Output
and
+Output.
2.
Connect the first wire between the
+Output
on the 4U1 controller and the
Input (+)
on the actuator.
3.
Connect the second wire between the
-Output
4U1 controller and
Input (-)
on
the actuator.
Note: If the water valve and actuator were not ordered, the signal can also be
used by a BAS system.
1-5 VDC Signal
1.
Confirm the connection of the 250 ohm resistor, factory mounted on the 4U1
module between the
-Output
and
+Output.
2.
Connect to
+Output
on the 4U1 controller and
Input (+)
on the actuator.
3.
Connect the second lead to
-Output
4U1 controller
Input (-)
on the
actuator.
Note: If the water valve and actuator were not ordered, the signal can also be
used by a BAS system.
Connecting Supply Voltage to the Water Valve
Actuator
The power supply for the valve actuator is customer supplied. For 115 VAC
applications, #14 AWG 600V wire is needed.
Connect the customer supplied voltage to terminal points labeled “XXX” ACV on the
right side of the actuator. Refer to Figure 5.
Figure 5
Wiring Schematic
1U2 Starter
Module
J2
1
2
3
4
4U1 ASM Module
S1
S2
-S
ACC
AC
GND
S3
TX1
-S
TX2
+OUT
-OUT
Valve Actuator
INPUT ACxxxV OUTPUT
+
-
+
-
Customer Supplied
115 VAC or 230 VAC
condenser
pressure transducer
4R1
(red)
(blk)
evaporator
pressure transducer
4R2
(red)
(blk)
(braided)
(braided)
