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Table of Contents
Related Manuals for DOMUSA DUAL CLIMA 16HTT
Summarization of Contents
1 Safety Warnings
1.1 General Installation Warnings
Crucial precautions for safe and compliant installation of the heat pump.
1.2 Refrigerant Handling Safety
Critical safety guidelines for handling flammable R290 refrigerant gas.
1.3 Transport and Handling Precautions
Guidelines for safe transport, storage, and handling to prevent damage and accidents.
1.4 Personal Safety Measures
Essential personal safety precautions during installation and maintenance operations.
1.5 Freeze Protection Guidelines
Recommendations for protecting the unit from freezing during cold weather.
3 List of Components and Spare Parts
3.1 Dual Clima 6HT Components
Lists and illustrates exterior covers for the Dual Clima 6HT model.
3.2 Dual Clima 9HT Components
Lists and illustrates exterior covers for the Dual Clima 9HT model.
3.3 Dual Clima 12HT Components
Lists and illustrates exterior covers for the Dual Clima 12HT model.
3.4 Dual Clima 16HT Components
Lists and illustrates exterior covers for the Dual Clima 16HT model.
3.5 Dual Clima 16HTT Components
Lists and illustrates exterior covers for the Dual Clima 16HTT model.
4 Characteristics of the Components
4.1 Electronic Expansion Valve
Details the electronic expansion valve used in different Dual Clima HT models.
4.2 Liquid Manifold
Describes the liquid manifold and its function as a safety buffer.
4.3 4-Way Valve
Explains the function of the 4-way valve in changing refrigerant direction.
4.4 Suction Accumulator
Describes the suction accumulator's role as a safety buffer at the compressor inlet.
4.5 Compressor Specifications
Details compressor models and refrigerant quantities for each Dual Clima HT unit.
4.6 Low Pressure Sensor
Explains the low-pressure sensor's function in regulation and safety.
4.7 High Pressure Sensor
Explains the high-pressure sensor's function in regulation and safety.
4.8 Fan Operation
Details the fan motor and blades, and their role in heat exchange.
4.9 Plate Heat Exchanger
Describes the plate heat exchanger's function in energy transfer.
4.10 Discharge Temperature Probe
Explains the discharge temperature probe's role in measuring compressor discharge temperature.
4.11 Evaporator Temperature Probe
Explains the evaporator temperature probe's role in measuring refrigerant temperature.
4.12 External Temperature Probe
Explains the external temperature probe's role in measuring exterior air temperature.
4.13 Suction Temperature Probe
Explains the suction temperature probe's role at the compressor inlet.
4.14 Return Temperature Probe
Explains the return temperature probe's role in measuring primary water return temperature.
4.15 Flow Temperature Probe
Explains the flow temperature probe's role in measuring primary water flow temperature.
4.16 Internal Heat Exchanger Temperature Probe
Explains the internal heat exchanger probe's role.
4.17 Expansion Vessel Details
Details the expansion vessel's specifications and pre-load pressure.
4.18 Flow Meter Specifications
Describes flow meter models and their working pressure/measurement range.
4.19 Circulating Pump Models
Lists the circulating pump models and their specifications.
5 Wiring Diagrams and Electronic Components
5.1 Nomenclature and Definitions
Defines abbreviations and terms for components and terminal strips.
5.2 Wiring Diagram History
Summarizes changes made to wiring diagrams across different versions.
5.3 Dual Clima 6HT Wiring Diagram
Provides the wiring diagram for the Dual Clima 6HT model.
5.4 Dual Clima 9HT Wiring Diagram
Provides the wiring diagram for the Dual Clima 9HT model.
5.5 Dual Clima 12HT Wiring Diagram
Provides the wiring diagram for the Dual Clima 12HT model.
5.6 Dual Clima 16HT Wiring Diagram
Provides the wiring diagram for the Dual Clima 16HT model.
5.7 Dual Clima 16HTT Wiring Diagram
Provides the wiring diagram for the Dual Clima 16HTT model.
5.8 DIP Switch Settings Table
Details the DIP switch settings (SW4, SW3, P39) for different heat pump models.
5.9 Main Electronic Components Overview
Identifies and illustrates main electronic components like IPM card and power board.
5.10 Electronic Component Characteristics
Details specifications for PCB power board and IPM cards.
6 Start Up Procedure
Overall Start-up Checks
Checklist for overall system checks before heat pump start-up.
Safety Systems Verification
Checklist for verifying the status of essential safety systems.
Hydraulic Installation Requirements
Details parameters for hydraulic installation, including tank volume and pipe insulation.
System Parameterisation Guide
Lists and explains various operational parameters for heat pump configuration.
Electrical Connection Guidelines
Covers electrical connection requirements, contracted power, and cable diameter.
7 Maintenance Procedures
Routine Maintenance Checks
Checklist for routine maintenance checks on the heat pump unit.
Hydraulic System Maintenance
Checklist for maintenance tasks related to the heat pump's hydraulic system.
8 Control Theory and Operation
8.1 Heat Pump Operating Modes
Describes the five operating modes of the Dual Clima HT heat pump.
8.2 Start and Stop Cycle Logic
Explains the basic considerations for heat pump start and stop cycles.
8.3 Defrost Function Operation
Explains the defrost function's purpose and operation to prevent frost buildup.
8.4 Anti-Freeze Functionality
Explains the anti-freeze functions for DHW and heating/cooling modes.
8.5 Fan Control and Speeds
Describes the modulating fan's operation, speed, and parameters.
8.6 Compressor Operation
Details the compressor element, operating frequencies, and modulation logic.
8.7 Electronic Expansion Valve (EEV) Operation
Explains the EEV's function, initial openings, and maximum/minimum openings.
8.8 Auxiliary Energy Sources (E1 & E2)
Explains the use of auxiliary energy sources (E1, E2) and their configuration parameters.
8.9 3-Way Electronic Valve G1
Explains the operation of the 3-way electronic valve G1.
8.10 3-Way Electronic Valve G2
Explains the operation of the 3-way electronic valve G2.
9 System Parameters (P)
Basic Operation and Setpoint Parameters (P00-P07)
Covers parameters P00-P07 for basic operation, setpoints, and hysteresis.
Advanced Heating and Legionella Parameters (P08-P14)
Covers parameters P08-P14 for OTC, anti-legionella, and advanced heating settings.
Mode and Anti-Freeze Parameters (P15-P21)
Covers parameters P15-P21 for night mode, circulation pumps, and anti-freeze settings.
Defrost and Backup Source Parameters (P22-P31)
Covers parameters P22-P31 for defrost, backup sources, and fan speed adjustments.
Compressor and Expansion Valve Parameters (P32-P46)
Covers parameters P32-P46 for compressor, expansion valve, and fan speed control.
Compressor Protection and Operating Limits (P47-P58)
Covers parameters P47-P58 for compressor protection, operating limits, and pressure settings.
Pump, Fan, and Mode Activation Parameters (P59-P64)
Covers parameters P59-P64 for pump speed, water flow, fan speed, and mode activation.
Sensor and Restart Parameters (P68-P78)
Covers parameters P68-P78 for sensor types, fan selection, restart, and reserved settings.
Auxiliary Source and Defrost Temperature Parameters (P81-P91)
Covers parameters P81-P91 for auxiliary sources and defrost temperature settings.
Overheating and Compressor Control Parameters (P92-P116)
Covers parameters P92-P116 for overheating thresholds and compressor control.
SG Ready and Setpoint Parameters (P201-P208)
Covers parameters P201-P208 for SG Ready function and setpoints.
10 Status Menu Parameters (C)
Temperature and Pressure Sensor Readings
Displays actual temperatures and pressures from various sensors.
Operating Status Indicators (C15-C33)
Displays compressor frequency, fan speed, valve positions, and operational statuses.
System Status Indicators (C34-C50)
Displays status of anti-freeze, compressor heater, valves, pumps, and setpoints.
Mode and Software Version Indicators
Displays current operating mode, software versions, and pump speed.
11 Error Management Procedure
11.1 Probe Diagnosis and Troubleshooting
Guides on diagnosing and troubleshooting errors related to temperature probes.
Sensor Failure Errors (E01-E10)
Details errors E01-E10 related to various sensor failures and their troubleshooting.
Pressure and Flow Sensor Errors (E11-E14)
Details errors E11-E14 related to pressure sensors and flow issues.
Operational Fault Errors (E15-E44)
Details errors E15-E44 related to water flow, communication, and temperature faults.
System and IPM Related Errors (E50-E20-299)
Details errors related to system, IPM, voltage, current, and phase faults.
12 Other Considerations
Troubleshooting Without Error Codes
Troubleshooting guide for issues without specific error codes, covering parameters and circuits.
HMI Remote Control Issues
Troubleshooting steps if the HMI remote control shows no symbol or communication errors.
12.3 Performance Curves
Dual Clima 6HT Performance Data
Graphs showing heating performance for Dual Clima 6HT based on external temperature.
Dual Clima 9HT Performance Data
Graphs showing heating performance for Dual Clima 9HT based on external temperature.
Dual Clima 12HT Performance Data
Graphs showing heating performance for Dual Clima 12HT based on external temperature.
Dual Clima 16HT Performance Data
Graphs showing heating performance for Dual Clima 16HT based on external temperature.
12.4 Refrigerant Quantity Check
Overheating Temperature Analysis (C11)
Guides on checking overheating temperature to assess refrigerant quantity.
Frost Formation and Refrigerant Leaks
How to check for frost formation due to potential refrigerant leaks.
External Heat Exchanger Temperature Check
How to check external heat exchanger temperature to identify refrigerant leaks.
Heat Pump Output Verification
How to check heat pump output against power curves for potential leaks.
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