Connecting An Optional Pump Start Relay - Toro Custom Command 36 Station Manual Del Usaurio

Caution: A maximum load of 12 VA (0.5 amps) may be connected
to each station. A maximum load (including master pump relay or
master valve) of 50 VA (2 amps) may be programmed to operate
simultaneously. Exceeding these limits can damage the controller.
3. Route the control and common wires into the controller cabinet.
Remove approximately 1/2" (13 mm) insulation from the ends of
each wire. Shorter lengths of the exposed wire will be inadequate for
contact.
Note: The quick-connect terminal blocks will accept one 12 AWG
(4 mm
position. Insert the wire into either opening provided. Pull lightly
after insertion to ensure positive retention. To release the wire, press
either tab located directly above and below the terminal.
3. Two field common terminals are provided for each 12-station terminal
block. Attach the field common wire(s) to the terminal(s) labeled
/
VC COM
5. Referring to Figure 4, connect each valve control wire to the
appropriate station number terminal.
Note: The Hot Post (see item 25 on page 3) provides 24 V a.c.
to enable valve identification at the controller. With the valve
common connected, simply touch the station wire to the Hot Post
to energize valve.
CONNECTING A PUMP START RELAY
When a pump is to be operated by the controller, a compatible relay
must be used. The relay coil will be connected to the master valve (MV)
terminal and must be rated for 24 V a.c. at 0.5A maximum. The relay
contacts will be connected to the pump start terminals and must be
rated for use with the particular pump.
Note: Transient suppressors may be needed across the relay contacts in
installations using large pumps.
Figure 5
Installation Procedures
22
2 ) or two 14 (2.5 mm
.
Master Valve
(MV) Terminal
Valve Common
(VC) Terminal
2 ) AWG solid copper wires in each
To Pump
Starter