HVAC / Air Conditioners
ACiQ 18K-55K Multi-Zone Condenser Compatibility Chart
A technical compatibility guide for ACiQ 18K-55K multi-zone condensers, detailing compatible air handler models, refrigerant pipe specifications, and indoor unit combination configurations.
Table of contents
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This document serves as a compatibility and configuration reference for ACiQ 18K-55K multi-zone condensers. It provides essential data for installers to match outdoor units with compatible indoor air handlers, determine correct refrigerant pipe sizes, and verify system configuration limits.
Condenser Model Reference
The following outdoor units are covered in this guide:
- Standard Heat Models: ES-18Z-M3C, ES-27Z-M4C, ES-36Z-M5C, ES-48Z-M6C, ES-55Z-M6C
- Extreme Heat Models: ACiQ-18Z-HH-M3C, ACiQ-27Z-HH-M4C, ACiQ-36Z-HH-M5C, ACiQ-48Z-HH-M6C, ACiQ-55Z-HH-M6C
All listed models operate on 208/230V, 60Hz, 1Phase power.
Compatible Air Handlers
The system supports various indoor unit types, including:
- Ceiling Cassettes (4-Way and 1-Way Slim)
- Concealed Ducts
- Console & Floor/Ceiling Mounts
- Wall-mounted Air Handlers
Refer to the specific model number tables in the document to ensure the chosen indoor unit is compatible with your specific condenser model.
Pipe Length and Drop Height
Ensure that the refrigerant pipe length and height differences between units do not exceed the following limits:
- Max length for all rooms: 131ft/40m (2-Zone) to 262ft/80m (4-6 Zone).
- Max length for one Indoor Unit: 82ft/25m (2-Zone) to 115ft/35m (4-6 Zone).
- Max height difference between IDU and ODU: 49ft/15m (all zones).
- Max height difference between Indoor Units: 33ft/10m (all zones).
Refrigerant Pipe Requirements
Refrigerant pipe diameters vary based on the indoor unit model. Always check the specific diameter requirements for your unit. If the pipe diameter differs from the outdoor unit union, you must use an additional transfer connector. The manual provides detailed tables listing the required pipe diameters and necessary adapters for each outdoor unit model.
Indoor Unit Combinations
The document contains extensive tables detailing valid indoor unit combinations for each condenser model (e.g., ES-18Z-M3C, ACiQ-18Z-HH-M3C, etc.). These tables specify the number of units (one to six) and the capacity (k) of each unit that can be connected to the system. Ensure your planned configuration is listed in the corresponding table for your condenser model.
Manufacturer information
ACiQ
Practical help
Common problems
Refrigerant pipe diameter mismatch
If the pipe diameter differs from the outdoor unit union, you must use an additional transfer connector.
Exceeding pipe length limits
Verify that the total length for all rooms and the length for individual indoor units do not exceed the limits specified in the 'Pipe Length and Drop Height' table for your zone configuration.
Before use
- Verify the specific model number of your outdoor condenser.
- Confirm the power supply requirements (208/230V, 60Hz, 1Phase).
- Check the compatibility of your chosen indoor air handler models against the provided reference tables.
- Calculate the required refrigerant pipe lengths and ensure they are within the allowed limits for your zone configuration.
- Identify if any adapters are required for the refrigerant pipe connections based on the outdoor unit model.
Specs in practice
- Capacity (Btu/h)
- Indicates the cooling/heating capacity of the unit, used to determine compatibility.
- Liquid/Gas Pipe Diameter
- The required size of the refrigerant lines; varies by indoor unit model and capacity.
Images and diagrams
- The manual provides detailed tables for indoor unit combinations, showing valid configurations for 1 to 6 units based on the condenser model.
Model compatibility
- If at least one ducted AHU is used, specific combination rules apply; check the relevant table for your condenser model.
- Gas pipe size may be dependent on the specific air handler type.
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.