Well, I finally got some warm weather for a day and I installed the control circuit in the AquaLink. The ELK-960 Delay timer works well. The only feature it has, which I didn't need, is a test cycle. When you first power it up, it will activate the JVA (Heater position), time out and then go back to the normal mode which is to bypass the heater. I powered the circuit from the +/-24V on the Pump/Filter relay. I took the trigger line from the +24V on the Heater relay. For the 24V AC for the JVA I tapped into the 2, yellow wires running from the transformer in the AquaLink unit. One wire runs to the common terminal on the circuit board and the other yellow wire is connected to the black wire on the JVA. The red wire on the JVA gets connected to the Normally Open contact and the white wire from the JVA is connected to the Normally Closed on the circuit board. That's all there is to it. So for $30, an extra JVA and a little time you can bypass your heater when not in use. When you push the Heater button on the control panel it will change the JVA to circulate the water to the heater. When you are done heating and push the heater button again to stop the heater, the circuit will delay the valve returning to bypass for a preset amount of time. I use 20 minutes which is adjustable from 1 minute to 60 minutes. I hope this explains what I did and helps other people who might be interested in doing the same thing.