11
Connect Pump Start Relay
Connect an optional Pump Start Relay to the ESP-
RZXe controller.
Pumps are used in some places to draw water from a
well or other source. If you are activating a pump from
the controller, you must install a pump start relay.
A pump start relay connects to the controller in the
same way as a Master Valve, but connects differently
at the water source.
l
b
NOTE:
the ESP-RZXe controller DOES NOT
provide main power for a pump.
Connect the Relay Input wire from the pump
start relay to the master (M) terminal on the
controller terminal block.
REMOTE
24VAC
ACCESSORY
SENS
1
2
3
4
5
6
7
8
C M
RESET
Connect the common wire from the pump start
relay to the COMMON (C) terminal.
l
b
NOTE:
To avoid possible pump damage when
using a pump start relay, connect a short jumper
wire from any unused Zone terminal(s) to the
nearest Zone terminal in use.
For example, if a 4 Zone controller model is in
use with only two Zones connected, route the
terminals for Zones 3 and 4 to the nearest active
terminal (in this example, Zone 2)
Connect Rain Sensor
Connect an optional rain sensor to the ESP-RZXe
controller.
On the terminal board, remove the jumper wire
from the SENS terminals.
REMOTE
24VAC
ACCESSORY
SENS
1
2
3
4
5
6
7
8
C M
RESET
Connect both Rain Sensor wires to the SENS
terminals.
REMOTE
24VAC
ACCESSORY
SENS
1
2
3
4
5
6
7
8
C M
RESET
RELAY
INPUT
COMMON
FIELD
COMMON
PUMP
START
RELAY
