User's Manual Part 2
36 I-Wave Installation Guide
Copyright © 2006 Intermatic, Inc.
Rear View
24VAC POWER-IN FOR PC 
BOARD — The circuit board 
for the Pump/Valve Switch 
requires 24VAC power 
from the transformer.
OMRON CONNECTIONS 
— Each of the two Omron 
relays connects to the PC 
board at these points. 
SENSOR LINE PLUG IN — The pool to spa mechanism
supports up to two auxiliary 3HP circuit loads. You 
can have different source voltages for each circuit, 
depending on your equipment requirements. The sensor line 
allows the mechanism to be controlled by a single-pole 
single throw switch. (i.e., a toggle switch, relay, wall switch, etc.) 
POOL/SPA SWITCH CONNECTION — located on the face of the Pump/
Valve Switch mechanism connects to the PC board at this point, and 
allows you to switch between the pool and spa thermostat or just the 
spa only. In the spa only mode, the pool thermostat is disabled. 
EXTERNAL TIMER PLUG IN — 
into the PC board at this point 
to control relay #1. Please see 
page xx for instructions on 
using an external timer. 
OMRON RELAY #2 — This 
relay can switch either 
120V or 240V loads. 
Can be ordered separately
 (145T145A) 
CONTROL FACE PLUG IN — a 
control pad for service. The 
control pad connects to the 
PC board at this point. 
OMRON RELAY #1 — This 
relay can switch either 
120V or 240V loads. Can 
be ordered separately (145T145A) 
24VAC POWER-IN FOR PC 
BOARD — The circuit board 
for the Pump/Valve Switch 
requires 24VAC power 
from the transformer.
OMRON CONNECTIONS 
— Each of the two Omron 
relays connects to the PC 
board at these points. 
SENSOR LINE PLUG IN — The pool to spa mechanism
supports up to two auxiliary 3HP circuit loads. You 
can have different source voltages for each circuit, 
depending on your equipment requirements. The sensor line 
allows the mechanism to be controlled by a single-pole 
single throw switch. (i.e., a toggle switch, relay, wall switch, etc.) 
POOL/SPA SWITCH CONNECTION — located on the face of the Pump/
Valve Switch mechanism connects to the PC board at this point, and 
allows you to switch between the pool and spa thermostat or just the 
spa only. In the spa only mode, the pool thermostat is disabled. 
EXTERNAL TIMER PLUG IN — 
into the PC board at this point 
to control relay #1. Please see 
page xx for instructions on 
using an external timer. 
OMRON RELAY #2 — This 
relay can switch either 
120V or 240V loads. 
Can be ordered separately
 (145T145A) 
CONTROL FACE PLUG IN — a 
control pad for service. The 
control pad connects to the 
PC board at this point. 
OMRON RELAY #1 — This 
relay can switch either 
120V or 240V loads. Can 
be ordered separately (145T145A) 










