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Connect Pump Start Relay
Connect an optional Pump Start Relay to the ESP-
RZ 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.
b
l
NOTE: the ESP-RZ 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.
1
2
3
4
5
6
7
M
T
W
TH
F
S
SU
OFF
AUTO
Z
O
N
E
SEASONAL
ADJUST
DATE/TIME
MANUAL
SCHEDULE
ESP-RZ
BACK
OFF
ON
NEXT
RESET
C M
1
2
3
4
5
6
7
8
24VAC
SENS
ACCESSORY
REMOTE
COMMON
PUMP
START
RELAY
Connect the common wire from the pump start
relay to the COMMON (C) terminal.
b
l
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)
RELAY
INPUT
FIELD
COMMON
Connect Rain Sensor
Connect an optional rain sensor to the ESP-RZ
controller.
On the terminal board, remove the jumper wire
from the SENS terminals.
1
2
3
M
T
W
OFF
AUTO
Z
O
N
E
SEASONAL
DATE/TIME
ADJUST
MANUAL
SCHEDULE
ESP-RZ
BACK
OFF
RESET
C M
1
2
24VAC
SENS
ACCESSORY
REMOTE
Connect both Rain Sensor wires to the SENS
terminals.
9
4
5
6
7
TH
F
S
SU
ON
NEXT
3
4
5
6
7
8
OFF
AUTO
SEASONAL
DATE/TIME
ADJUST
MANUAL
SCHEDULE
ESP-RZ
RESET
C M
24VAC
SENS
ACCESSORY
REMOTE
1
2
3
4
5
6
7
M
T
W
TH
F
S
SU
Z
O
N
E
BACK
OFF
ON
NEXT
1
2
3
4
5
6
7
8
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