Page
4
WIRING
1. Screw a 1/2” condulet to the threaded transformer mounting at bottom of
case feeding transformer leads into condulet. Install and secure rigid conduit or
armored cable as may be required by local electrical codes.
2. Route two wires from 110 VAC source through condulet and connect one
to black transformer lead and the other to the white transformer lead using
approved wire nuts.
To ground the controller, connect the green lead from the transformer (which is
slightly shorter than the black and white leads) to a grounding wire. Grounding
can also be achieved by securing metal conduit to the1/2” condulet.
3. Route the 24 VAC wiring from the valves through the large hole in the
bottom of the case. (NOTE: Check local code for approved method).
Sterling 4, 8, and 12:
One wire is routed from each valve to the correspondingly numbered station
terminal. Valve #1 corresponds with station terminal #1, valve #2 with station
terminal #2, and so on. One common wire is connected in parallel with each
valve and then to the “Common” terminal.
If a master valve or pump start circuit is required, connect one wire to the
“Common” terminal and the other to the terminal marked “Master Valve or
Pump Start”.
Sterling 18, 24, 30, and 36
Route the 24 VAC wiring from the field valves through the large hole in the
bottom of the case. (NOTE: Check the local code for approved method.) One
wire is routed from each valve to the correspondingly numbered pigtail. Valve
#1 corresponds with pigtail #1, valve #2 with pigtail #2, and so on. One com-
mon wire is connected in parallel with each valve and to the pigtail labeled “Com”.
If a master valve or pump start circuit is required, connect one wire to pigtail la-
beled “Com” and the other to pigtail labeled “Master Valve or Pump Start”.
To Next Page
Loading...
Need help?
General