Mounting and Installation
Page 32 of 102
CAUTION!
All electrical wiring shall be performed by a licensed electrician,
in accordance with local and national electric codes.
To enter wires into the terminal blocks, (see figure 22) insert a small screwdriver or similar,
into the spring box opening as shown, then push up on the driver handle. This will force the
spring loaded metal slider downwards and open the wire grip below.
Spring loaded tabs
To enter wires into the digital inputs and digital outputs,
depress the spring loaded tab. See figure 21
Figure 21 Spring loaded terminals Figure 22 Open the terminals
6.3.5.2 Wiring Relays R1 and R2
Figure 23 shows relays R1 and R2 wired to outlet plugs. (Plugs not shown).
Notice that the black, white and green wires for R1 are in the right most column of the
terminal block, the NO column. Relay R2 also utilizes the NO column. These plugs
will supply power when the controller turns them on.
Powered relays R1 and R2 are designed to operate pumps and solenoids with a 1
amp rating or less. Relays R3, R4 and R5 can drive 5 amp devices. See section
6.3.5.5
Wiring Relays R3
–
R5 Using an External Power Supply
Figure 23 Terminating R1 & R2
6.3.5.3 Wiring Relays R1 and R2 for a Motor Operated Valve
Motor Operated valves typically have two hot wires, a neutral and a ground. The two hot wires will be
terminated on the NO and NC terminals. The NO terminal will open the valve when the controller turns
on the output relay. The NC terminal will close the MOV when the controller turns off the output.
Figure 24 shows an MOV terminated on R1. The red wire is connected to R1 NO and the black wire is
connected to R1 NC. See also section
6.3.5.6 Wiring Motor Operated Valves (MOV) to Relays R3 - R5
6.3.5.4 Wiring Relays R3
–
R5 Using On-board Power
Terminal connectors for R3, R4 and R5 can be removed from the PCB by
pulling them up and off the
pins on the PC board to make wiring easier, if you choose. Relays R1, R2 and the power block cannot
be removed.
Figure 24 R1 MOV
CAUTION!
The unpowered (DRY) relays R3, R4, and R5 are not fused and any external connection to these relay terminals will
require additional circuit protection provided by the installer at the time of installation.
Failure to protect these circuits can cause non-warranty equipment damage and could pose a safety hazard.
These blocks accept a maximum of 14 gauge wire.
The orange output terminals accept a
maximum of 12 gauge wire.