This document is an installation and operation manual for TICA PRO LLC's INVERTER MULTI SYSTEM UNIT, specifically the TIMS-S/ST/SA/SRYA series. It provides comprehensive instructions and guidelines for the safe and efficient installation, operation, and maintenance of these VRF (Variable Refrigerant Flow) air conditioning units.
Function Description
The TICA INVERTER MULTI SYSTEM UNIT is a VRF air conditioning system designed for cooling applications. It allows for the connection of multiple indoor units (IDUs) to a single outdoor unit (ODU), providing flexible and efficient climate control for various spaces. The inverter technology enables variable compressor speed, optimizing energy consumption and maintaining precise temperature control. The system is designed to operate with R410A refrigerant, a common choice for modern, environmentally conscious HVAC systems.
Important Technical Specifications
The manual details several critical technical specifications for the ODUs, including:
- Capacity: The ODUs are available in a wide range of capacities, from 8HP to 34HP, with corresponding models such as TIMS080-S/SA/ST (8HP), TIMS100-S/SA/ST (10HP), TIMS120-S/SA/ST (12HP), TIMS140-S/SA/ST (14HP), TIMS160-S/SA/ST (16HP), TIMS180-S/SA/ST (18HP), TIMS200-S/SA/ST (20HP), TIMS220-S/SA/ST (22HP), TIMS240-S/SA (24HP), TIMS260-S/SA (26HP), TIMS280-S/SA (28HP), TIMS300-S/SA (30HP), TIMS320-S/SA (32HP), and TIMS340-SA (34HP). There are also CSRYA models like TIMS252CSRYA, TIMS285CSRYA, TIMS335CSRYA, TIMS400CSRYA, and TIMS450CSRYA.
- Maximum Quantity of Connectable Indoor Units: The number of connectable IDUs varies with ODU capacity, ranging from 14 for an 8HP unit to 42 for a 34HP unit.
- Dimensions: Detailed diagrams and tables provide the dimensions (length, width, height) for various ODU models, crucial for installation planning and space allocation. For example, TIMS080-S/SA/ST models have dimensions of 930mm (width) x 860mm (depth) x 1710mm (height). Larger units like TIMS260-S/SA have a width of 1902mm.
- Refrigerant Piping Length Limits:
- Level difference between IDU and ODU: < 50m (ODU upper position), < 40m (ODU lower position).
- Level difference among IDUs: < 20m.
- Distance from farthest IDU to first branch pipe: < 40m.
- Distance between ODU and indoor first branch pipe: < 90m (main gas pipe size should be increased by one level if over 40m).
- Distance from farthest IDU to first branch pipe (T): < 40m.
- Distance from IDU to nearest branch pipe: < 40m.
- Total length of piping (equivalent length): < 1000m.
- Total refrigerant quantity: ≤ 52.0 kg for units ≤ 32 HP, and ≤ 60.0 kg for 34 HP units. Exceeding these limits may affect safe and reliable operation.
- Refrigerant Pipe Diameter: Specific guidelines are provided for selecting the diameter of main pipes and branch pipes based on ODU capacity and piping length. For instance, for an 8HP ODU with a main pipe length (LM + L1) < 40m, the liquid pipe is 9.52mm and the gas pipe is 22.23mm. Branch pipe diameters are also specified based on IDU capacity and branch pipe length.
- Electrical Specifications: The manual provides detailed wiring specifications, including power supply voltage range (3N/380V/50Hz, 418/342V), wiring current (30A to 80A depending on ODU model), general power cord cross-sectional area (6mm² to 35mm²), maximum length of power cord (≤ 20m to 50m), GND wire size, and communication line specifications (0.75-1.25 mm² polyethylene shielded twisted pair).
- Operating Ambient Temperature Range:
- Cooling: -5°C to +56°C (DB)
- Heating: -27°C to 26°C (WB)
Usage Features
- Inverter Technology: The system utilizes inverter technology for variable compressor speed, leading to improved energy efficiency and precise temperature control.
- Multi-System Capability: Supports multiple indoor units connected to a single outdoor unit, offering flexibility in system design for various building layouts.
- R410A Refrigerant: Designed to operate with R410A refrigerant, which is known for its environmental benefits compared to older refrigerants.
- Control Panel: The ODU features a control panel with a digital display and keys (KEY1, KEY2, KEY3, KEY4, KEY5) for code settings, parameter adjustments (e.g., address setting, baud rate, model setting, fan mode, compressor drive, fan drive), and displaying fault codes.
- DIP Switches: DIP switches (S1, S2, S3) are used for configuring ODU capacity, system configuration (master/slave unit), and other settings. Both old and new versions of the main board are described, with different DIP switch configurations.
- Trial Operation: A structured trial operation process is outlined to ensure proper functioning after installation, including checking for cold/hot air from IDUs and verifying wiring/piping.
Maintenance Features
- Safety Precautions: Emphasizes the importance of professional installation, dedicated power circuits, proper voltage, and avoiding contact with heat exchanger fins. It also highlights the need for water-proof electrical parts and securing the control box cover.
- Air Tightness Test: Detailed steps for conducting an air tightness test using nitrogen (not flammable gases) to detect leaks in the refrigerant piping. This is a critical step to ensure system integrity.
- Vacuuming: Instructions for vacuumizing the refrigerating system to remove air and moisture, specifying the use of a vacuum pump dedicated to R410A series and ensuring a vacuum degree below 755 mmHg.
- Refrigerant Supplementation: Guidelines for calculating and supplementing refrigerant based on the actual length of the refrigerant piping at the installation site. It specifies the use of a charge tank and electronic scale for accurate measurement.
- Fault Code Display: The digital display on the ODU control panel shows fault codes (e.g., E000 for high pressure switch disconnection, E001 for FAN1 drive fault, E020 for abnormal capacity distribution) to assist in troubleshooting and maintenance.
- Environmental Protection: The manual includes a "Description of Hazardous Substances" section, detailing the presence of substances like Plumbum (Pb), Mercury (Hg), Cadmium (Cd), Hexavalent chromium (Cr(VI)), Polybrominated Biphenyl (PBB), and Polybrominated Diphenyl Ethers (PBDE) in various components. It also outlines the environmental protection service life (15 years) and recycling guidelines for the product.
- Installation Space Requirements: Provides specific dimensions for installation space around the ODU to ensure proper heat dissipation, ventilation, and access for maintenance. This includes minimum clearances from front, rear, left, and right sides, as well as considerations for wall height and snow protection facilities.
- Handling Instructions: Offers guidance on safe handling of the ODU during installation, including using forklifts or cranes, proper rope tying, and protecting the unit from damage.
- Placement Guidelines: Specifies requirements for ODU placement, such as a firm, level base, shock-absorbing pads, minimum height above ground (200mm), and drainage for condensate water.
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