ESP-SMTe Controller
4
Connect Pump Start Relay (optional)
The ESP-SMTe can control a pump start relay, to turn the
pump on and off as needed.
A
Connect a wire from the pump start relay (PSR) to the
master valve terminal (M) on the base module. Then
connect another wire from the pump start relay to the
field common wire, as shown.
B
To avoid the possibility of damage to the pump,
connect a short jumper wire from any unused
terminal(s) to the nearest terminal in use, as shown.
c
b
NOTE: The ESP-SMTe controller DOES NOT provide
power for a pump. The relay must be wired according
to manufacturer instructions.
Only the following Rain Bird pump start relay models are
compatible with the ESP-SMTe:
Description
Note
Model No.
Universal Pump Relay 110 volt only
PSR110IC
Universal Pump Relay 220 volt only
PSR220IC
Dual Pole Pump Relay 110/120 volt
PSR110220
c
b
NOTE: Connec-
tion to pump
and external
power not
shown. Refer to
pump instal-
lation instruc-
tions.
A
PUMP START
RELAY
B
C
PSR
1
2
Connect Power
c
c
WARNING: DO NOT plug in the transformer or con-
nect external power until you have completed and
checked all wiring connections.
c
c
WARNING: Electric shock can cause severe injury or
death. Make sure power supply is turned OFF before
connecting power wires.
Indoor Model
A
Route the transformer power cord through the
conduit opening at the bottom left of the unit. Knot
the cable/cord inside the controller cabinet to prevent
it from being pulled out.
c
c
WARNING: Do not route the power cord through the
field wire opening at the bottom right of the unit.
B
Connect the two power wires on the cord to the two
24VAC terminal connections on the controller.
C
Connect the ground wire on the cord to the GND
terminal.
D
Plug the transformer into an electrical outlet.
1
2
3
4
VT = VALVE TEST
VT MV COM
2
4
V
A
C
G
N
D
S
E
N
S
VT MV COM
5
6
7
11
12
13
17
18
19
1
2
3
4
8
9
10
14
15
16
20
21
22
TO EXTERNAL
POWER SUPPLY
D
A
B