Dimplex LIA 1316HXCF Heat Pump: Electrical and Hydraulic Diagrams
Quick Installation Guide
Page 1: Electrical Layout
This section details the electrical connections for the Dimplex LIA 1316HXCF air-to-water heat pump system.
Key Components:
- Outdoor Unit (+A100): Labeled as 'Split-Wärmepumpe' (Split Heat Pump).
- Indoor Unit (+A200): 'Hydrobox mit Wärmepumpenmanager' (Hydrobox with Heat Pump Manager).
- Electrical Distribution System: Shows the main electrical panel and connections.
Electrical Protection and Control:
- Fuses are indicated for the Hydrobox, Heat Pump Manager, and the Heat Pump (-X1).
- A contactor for the utility block ('Schütz EVU-Sperre' / 'contactor utility block' / 'contacteur blocage EJP') is labeled -K22.
Wiring and Connections:
- Communication bus: FBUS 1 (Tx/Rx).
- Power input: 230V IN.
- Digital Input: DI1.
- Various cable types are specified, including J-Y(ST)Y, NYM-J, and Oelflex, with wire color designations like GNYE (Green/Yellow for PE), BN (Brown), BU (Blue), BK (Black), RD (Red), GY (Grey), SH (Shield).
- Connections are shown between +A100, +A200, and +A300 (electrical distribution).
Diagram shows wiring from the outdoor unit (+A100) to the Hydrobox (+A200) and the electrical distribution panel (+A300), including fuses and control relays.
Page 2: Hydraulic Diagram 1
This section presents a hydraulic diagram illustrating the water flow and connections within the heat pump system.
Key Components Shown:
- Heat pump unit (-YM18).
- Sensors: R1 (likely temperature sensor), E9 (possibly related to heating element or control), R3.
- Connections indicate flow paths, typically red for supply/hot and blue dashed for return/cold.
The diagram depicts the primary hydraulic circuit, showing connections between the outdoor unit, indoor unit, and potentially a buffer or heating system. It includes various sensors and control elements.
Page 3: Plug-in Connections
This page focuses on the plug-in connections and terminal assignments for the heat pump manager and associated components.
Terminal Block Details:
- Extensive terminal blocks are shown, with labels like X1.1, X1.2, X2, X3.1, X3.2, Y1-Y5, U1-U12, DI1-DI3, D14, D17-D110.
- Connections are color-coded and labeled with function descriptions.
Function Groupings:
- Function: 0 (grey) - general +A400: This group covers general system functions and connections.
External Connections:
- External Wall Sensor: Connected via -WR1.
- Remote Fault Indicator: Connected via -WH5.
- Smart RTC: Connections for a smart real-time clock.
- Smart-Grid: Connections for Smart-Grid 1 and Smart-Grid 2.
- Utility Block Input: Connection for the utility block ('EVU-Sperre' / 'Sperreingang').
Cabling:
- Various Oelflex cables (e.g., 2x0.5mm², 2x0.75mm², 3x0.75mm²) and J-Y(ST)Y cable are used.
Detailed view of terminal assignments for various inputs and outputs, including sensors, control signals, and communication interfaces.
Page 4: Hydraulic Diagram 1 - Domestic Hot Water
This section details the hydraulic circuit specifically for domestic hot water (DHW) preparation.
Domestic Hot Water Circuit Components:
- Reversing Valve for DHW: ('Umschaltventil Warmwasser') controls flow for DHW.
- Flange Heater Relay: (-E9) likely controls an auxiliary heating element.
- Domestic Hot Water Sensor: ('Warmwasserfühler') measures DHW temperature, connected via -WR3.
Function Grouping:
- Function: 1 (yellow) - domestic hot water +A420: Highlights connections related to DHW operation.
Wiring:
- Connections include -WK21 and -WYM18 cables.
Illustrates the path of heat transfer fluid and control signals for heating domestic hot water, including the operation of a reversing valve and potential auxiliary heating.
Page 5: Hydraulic Diagram 1 - Function 2 (Green)
This page shows hydraulic connections associated with 'Function: 2 (green)'.
Function Grouping:
- Function: 2 (green): This grouping likely represents a secondary operating mode or zone, such as space heating or a different circuit configuration.
Diagram Details:
- Similar terminal block layouts and connection points as seen on other pages, but specifically assigned to Function 2.
Depicts the hydraulic and electrical connections for a specific operational mode, identified by the color green.
Page 6: Hydraulic Diagram 1 - Function 3 (Red)
This section details the hydraulic and electrical connections for 'Function: 3 (red)', which relates to the cooling circuit.
Cooling Circuit Components:
- Dew Point Monitor: ('Taupunktwächter') connected via -N5, likely to prevent condensation.
- Change-over for Heating/Cooling: ('Umschaltung Heizen / Kühlen') controlled by -K28, switching between heating and cooling modes.
Function Grouping:
- Function: 3 (red) - cooling circuit indoor / cooling down active +A150: Specifies connections for the cooling operation.
Wiring:
- Connections include -WN5 and -WK28 cables.
Illustrates the hydraulic and electrical configurations for the cooling mode of the heat pump, including components for managing condensation and switching between heating and cooling.
