Maintenance
Valve and pump inspection
Periodically inspect the valve or pump for signs of leakage or corrosion.
WARNING:
Risk for property damage, serious personal injury or death. You must replace the valve or
pump if corrosion or leakage is found.
Pairing after pump or valve replacement
If either the pump or the valve is replaced, device pairing is required. To pair the devices,
follow this procedure:
1. Power up the valve by inserting the batteries.
If the valve is already in operation, remove and reinsert the batteries. If the valve is
being replaced, remove the batteries from the old valve before pairing the new
replacement with the pump. It is recommended to use a fresh set of batteries in the
new valve being installed.
a) If a push-button / signal repeater device requires pairing, plug it directly into the
desired outlet.
2. Open the timer cover on the pump. Slide the switch from the “ON” position to the
“OFF” position.
3. Wait two (2) seconds and slide the switch from the “OFF” position to the “ON”
position.
4. Wait two (2) seconds and slide the switch to the “OFF” position.
5. Wait two (2) seconds and return the switch to the “ON” position.
When the device is successfully paired, the LED in the thermostat knob is lit. The pump is
now ready for service.
Replace the batteries
The system is designed to provide effective communication between the pump and valve
for approximately two (2) years after system start-up or battery replacement when using
two (2) 1.5 V LR06 alkaline batteries. When using rechargeable batteries, it is
recommended that they have a minimum 2500 mAh capacity.
Do not mix new and old batteries or other makes of batteries, such as alkaline with
lithium-ion. The different attributes can negatively affect the system performance or cause
the batteries to leak fluid, overheat, or explode.
When new batteries are inserted into the valve, the valve will resume communication with
the pump.
CAUTION:
Risk of property damage or personal injury. You must replace the valve if battery leakage
is found.
Maintenance
16
Laing Thermotech ACT-4 wireless Potable Hot Water Recirculation Kit Installation, Operation and Maintenance
Manual
