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Jandy

Jandy SpaLink RS 8-Function Spa Side Remote

The eight-button remote carries its own circuit board and speaks RS-485, which makes it the spa-side remote that fits this system: it lands on a PORT exactly like a pump or a heater rather than needing switch inputs.

The connection

SpaLink RS joins the same four-pin bus as the rest of the Jandy range. On a Jandy power centre it is piggybacked onto the existing four-pin terminal bar alongside whatever else is already there. On the iSmart Module it takes a PORT of its own.

PinColourPurpose
1RedSupply positive
2BlackData
3YellowData
4GreenSupply common
The same four-pin arrangement as every other Jandy device. Unlike a pump, this one has no mains supply of its own.
The Jandy four-pin connector with black and yellow going to a PORT, red to an external supply, and green bonded once between the supply negative and the PORT's G.
The same arrangement the chlorinator needs: data to the PORT, power from outside, one bonded common.

Installing it

  • Mount above water level, in the spa tile line or the decking.
  • Run conduit from the remote location back to the equipment pad before construction is finished — this cannot be retrofitted without breaking concrete.
  • Use sweep elbows for turns so the cable can be pulled and, later, replaced.
  • Keep the run out of conduit shared with any mains wiring.

When it does not respond

SymptomWhere to look first
Completely deadNo supply on the outer pair. The remote has no other source of power.
Powered but no communicationSwap black and yellow.
Works intermittently in wet weatherWater ingress at the remote or in the conduit, not the bus.
Buttons do the wrong thingsFirmware mapping rather than wiring — check the app's assignment.

Sources