1 - Battery Compartment
• Snap-in cover provides easy access to 9V alkaline battery.
2 - Control Module Ribbon Cable
• Quick disconnect for easy removal of control module from
cabinet to facilitate Armchair Programming or service.
3 - Ground Terminal (EARTH GROUND)
• Connection terminal for earth ground conductor wire.
4 - 2A Slow-blow Fuse
• Safety fuse provides current overload protection to the
24 VAC power source caused by a short-circuit condition.
5 - 24 VAC Terminals
• Connection terminals for plug-in transformer. Also provides
power source for CMR-KIT handheld remote.
6 - Valve Common Terminal (VC)
• Connection terminal for the valve (field) common wire.
7 - Master Valve/Pump Terminal (MV/PUMP)
• Connection terminal for master valve or 24 VAC pump start relay.
8 - Numbered Valve Terminals
• Connection terminals for valve wires. One terminal provided
per valve station (RD-1200 12-station model shown.)
9 - Remote Control Plug Receptacle
• Phone-style jack provided for connection of a CMR-KIT or
KSR-KIT-K handheld remote adapter cable.
Refer to “Remote Control Feature” on page 35.
Caution: The Rain Dial is designed to operate 24 VAC valve
solenoids rated at 0.25A (6 VA). Current total load must not
exceed 1.0A maximum. A maximum of two solenoids per station
terminal may be used, but not to exceed 0.5A per station. No
more than three solenoids (plus MV/Pump circuit) should be on
at any one time .
To prevent controller damage, do not link the valve common wire
of two or more controllers. Use a separate valve common wire for
each controller.
Overview: Internal Controller Components
8
66767_RainDial 0428A 3/28/07 2:24 PM Page 8
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