Nibe
Nibe PCBA Relay Card - 818168
Nibe PCBA Relay Card - 818168
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Description
Nibe PCBA Relay Card
Part Number: 818168
Component: Printed Circuit Board Assembly (Relay Control Board)
Function: Controls high-current components by switching relays based on commands from the main controller.
✅ Compatible With Nibe Models
| Model | Description |
|---|---|
| SMO 20 | Control module for Nibe heat pump systems |
| SMO 40 | Advanced control module for Nibe multi-unit/multi-zone systems |
| F1345 (various kW) | Nibe Ground source heat pump (dual compressor) |
| F1355 (various kW) | Nibe Ground source heat pump (inverter-driven, dual compressor) |
Used across single and multi-compressor heat pump systems where external and internal devices (pumps, heaters, fans) need to be controlled via relays.
⚙️ Key Functions
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Switches circulation pumps, immersion heaters, or external control signals
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Ensures safe and isolated switching of high-voltage or high-current devices
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Receives commands from system controller (SMO or internal logic in F1345/F1355)
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Provides relay-based outputs (NO/NC) to activate different loads
🛠️ Common Use Cases
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Replacement of faulty relay boards (e.g., components not responding to control commands)
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System expansions needing extra relay outputs
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Used in complex control configurations with zone valves, backup heating, or multi-stage outputs
