HUUM UKU Sauna Controller Installation and Wiring Diagram
This document provides essential information for the installation and wiring of the HUUM UKU sauna controller. It details component placement, required clearances, and electrical connection points.
Installation Clearances and Dimensions
To ensure proper operation and safety, maintain the following minimum clearances:
- Minimum distance from wall or obstruction: 5.9 inches / 15 cm
- Minimum distance from other equipment or walls: 19.7 inches / 50 cm
- Minimum distance from the sauna door: 19.7 inches / 50 cm
- Minimum distance from power source or junction box: 4 inches / 10 cm
Wiring specifications for connections:
- Control Panel (Component 1) to Main Controller (Component 2): 4x 28 AWG
- Junction Box (Component 4) to Main Controller (Component 2): 2x 28 AWG
Key Components and Connections
Component 1: Control Panel
This is the user interface, a digital control unit featuring a display screen and a circular button. It is identified by [indicator 1]. A [viewing symbol] icon indicates it is meant to be looked at or interacted with. It connects to the main controller unit via 4x 28 AWG wires.
Component 2: HUUM UKU Main Controller Unit
The central processing unit for the sauna control system. It houses multiple terminal blocks for various connections.
Terminal Block Group A (Top)
- Labeled 1, 2, 3, 4: These terminals are for internal system functions or specific configurations.
- Labeled O1, O2, T1, T2: These are designated for connecting to the sauna heater elements.
Terminal Block Group B (Middle)
- Labeled PE: Connection for the protective earth [ground symbol] for electrical safety.
- Labeled SN, SL1, SL2: Terminals for power supply connections.
- Labeled LN, LL: Likely used for load or heater output connections.
Terminal Block Group C (Bottom Left)
- Labeled L1, L2, N: Primary power input terminals.
- Labeled V, U: These terminals may be used for external sensors, communication signals, or auxiliary controls.
Power Input Options
The controller supports different power configurations:
- 120V / 240V: Connections can be made via the SN, SL1, SL2 terminals.
- 240V 2(N)~: Direct connection using L1, L2, N terminals.
Important Note: "N REQUIRED FOR 120V AUX LOADS ONLY" - The neutral (N) connection is mandatory only when utilizing 120V auxiliary loads.
Component 3: Vertical Element
A vertical rectangular component, identified by [indicator 3]. Its specific function is not explicitly stated but it may represent a switch, a fuse holder, or an indicator light.
Component 4: HUUM Logo Box
A distinct box featuring the HUUM logo, marked with [indicator 4]. This component connects to the main controller unit using 2x 28 AWG wires. It likely serves as a junction box or a mounting plate for wiring.
Component 5: Circular Connector
An oval-shaped connector with multiple pins (specifically 6 pins), indicated by [indicator 5]. The diagram does not specify its precise function.
Component 6: Auxiliary Power/Load Terminals
A terminal block, labeled with the number 6, shows connections for SN, SL1, and SL2. These are depicted as being wired to N, L, and L respectively, supporting both 120V and 240V power supplies for auxiliary functions.
Component 7: Light Symbol
A graphical representation of a sun or light source, identified by [indicator 7]. This symbol typically denotes a connection related to lighting, ambient conditions, or a specific operational mode involving light.
Detailed Wiring Information
The diagram provides a comprehensive overview of the electrical connections:
- Control Panel (1) to Controller (2): Wired using 4 conductors of 28 AWG gauge.
- Component (4) to Controller (2): Wired using 2 conductors of 28 AWG gauge.
- Main Power Input to Controller (2):
- For 240V 2(N)~ systems, connect to terminals L1, L2, and N.
- For 120V or 240V auxiliary loads, use terminals SN, SL1, and SL2, which correspond to Neutral (N), Line (L), and Line (L) respectively.
- Grounding: A dedicated PE terminal is present on the controller for essential safety grounding.
- Heater/Load Outputs: Terminals such as LN, LL, O1, O2, T1, and T2 are designated for connecting the sauna heater elements and other electrical loads.
- Sensor/Control Inputs: Terminals V and U are available for connecting external sensors or control signals, allowing for advanced functionality.
Important Installation Notes
- All electrical connections must be performed by qualified electricians in compliance with local electrical codes and regulations.
- Prior to installation, confirm that the power supply voltage matches the requirements of the HUUM UKU controller.
- Adherence to the specified minimum installation clearances is crucial for optimal performance, heat dissipation, and safe operation of the unit.
