Rain Master RME HAWK, Руководство пользователя

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10
ELECTRICAL CONNECTIONS FOR A MASTER VALVE
The RME HAWK allows you to SETUP the Master Valve (MV) output as either a
Normally Open or Normally closed configuration. When used in the Normally Closed
mode, the Master Valve line is a source of 24 VAC power. It is active whenever any station
in the controller is on. For Normally Open Master Valves, the controller supplies 24 VAC
only when either a Main Line Fault or Unscheduled Flow Fault occurs.
Normally Closed Master Valve Operation
If you have a Master Valve which requires activation to open, and no pump, connect the master
valve solenoid to the MV and Valve Common terminals as shown in Figure 2. If more than
one clock is going to control the Master Valve, the clocks must be isolated from each other.
Contact RMIS for the pamphlet on multiple clock installations. During SETUP, select the
NC (Normally Closed) Valve type for all programs (1, 2, 3, 4).
FIGURE 2. MASTER VALVE WIRING (EITHER NORMALLY OPEN OR NORMALLY CLOSED)
TO
TRANSFORMER
YELLOW
YELLOW
WHITE
BLACK
MASTER VALVE
1 2 3 + –
RAIN FLOW
Simultaneous Normally Closed Master Valve and Pump Operation
If you have a Master Valve which requires activation to open, and a pump which is always
needed whenever irrigating, connect BOTH the master valve solenoid and pump starter to
the MV and Valve Common terminals as shown in Figure 3. If the pump starter operates on
24 volts AC and the combination of the Master Valve Solenoid and Pump Starter require more
than 1 amp, you will need an isolation relay (Rain Master part: RLY1 or equivalent) and an
additional source of 24 VAC (see Figure 4). During setup, select the NC Valve type for all
programs which require the Master Valve and Pump. DO NOT select pump operation.
If the pump starter requires 120 VAC, you will also need an isolation relay (RLY1).
If more than one clock is going to control the Master Valve and pump, the clocks must be
isolated from each other. Contact RMIS for the pamphlet on multiple clock installations.