Irritrol PRO-MAX - Manual (Page 25)

Pro Max User’s Manual Rain Master Irrigation Systems
3.6 Disconnecting the Pro Max-UA from a Non-Rain Master Controller
To disconnect the universal adaptor, use the following procedure:
Step 1 Disconnect the large 37 pin connector plug from the universal adaptor by
grasping the plug’s body, not by the cable, and pull straight out.
3.7 Non-Rain Master Controllers Lacking 24 Volts AC
24 Volts AC is required to power the Universal Adapter. If 24 Volts AC is not available from the
controller, use a step-down transformer to convert from the line voltage (usually 117 or 240
Volts AC) to 24 Volts AC and run the 24 Volts AC wire into the PC cable to the two wires
designated for 24 Volts AC and COMMON. There is no need to worry about the polarity of
these two connections. Additionally, connect the PC cables COMMON wire to the controller’s
COMMON terminal. Do not connect the PC cables 24 Volts AC wire to the controller.
Transformer
High Voltage
24 VAC
Output of
Transformer Input
Non-Rain Master Controller
without 24 VAC
COMMON
COMMON on PC
24 VAC on PC
Figure 9: Non-Rain Master Controller 24 Volts AC
3.8 Permanent Wire Connections
A permanent mount connector can be installed on any controller so that the Pro Max-UA can be
easily installed and disconnected without having to deal with wiring connections. Three parts are
required (see Figure 9).
1. RMIS Part Number 32PC (or appropriate size cable)
2. RMIS Part Number CMAD (chassis mount adaptor)
3. RMIS Part Number 32EX (48” extension cable)
Page 20