10
FIGURE 8
24V
MOTOR
BACK OF TIMER
POSITION
SWITCH 1
24VAC
TRANSFORMER
GND
OUT
+5
TURBINE
SENSOR
NC
NO
RELAY BOX
TO 120V
OUTLET
CONNECT
TO AIR PUMP
TO 120V
OUTLET
NC
NO
POSITION
SWITCH 2
SOLENOID
24VAC
OUT
11
. CONNECT ALL LEADWIRES
a.
Locate the power cable, which is shipped with one end plugged into the timer (PWA) under the top cover.
Refer to Figure 8. Attach the other end of the power cable to the transformer.
NOTE:
Check to be sure the connectors are secure on the back of the timer.
b.
Plug the leads from the relay box into the corresponding connectors of the wire harness, located near the
solenoid under the top cover. Route the wiring through the clip in the bottom cover, as shown in Figure 2.
12
. CONNECT AIR PUMP
a.
Fasten the air pump in place on the floor or a shelf nearby the filter.
b.
Install the air filter (if required) and tubing connector fitting.
c.
Connect the tubing from the check valve on the adaptor to the connector fitting on the air pump.
d.
Plug the pump into the relay box connector.
13
. CONNECT TO ELECTRICAL POWER
Plug the transformer into a continuously “live”, grounded, 120V, 60 Hz house electrical outlet, approved by
local codes.
14
.
To complete the installation, do the programming steps on pages 11 and 12.
NOTE:
See water heater start---up on page 12.
