This is the 30-foot communication cable that links the indoor and outdoor units on an EG4 mini split system, carrying the low-voltage signal that keeps compressor speed, fan speed, and mode settings synced between the two units.
EG4 supplies this cable as the dedicated communication link for its mini split lineup, matched in gauge and connector style to EG4 indoor/outdoor unit terminals. Field-run comm cable that's too light-gauge or the wrong length is a common callback cause on mini split installs, so keeping to the OEM length and spec here reduces signal errors during commissioning. Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
- Length: 30 feet — sized for standard indoor-to-outdoor unit separation distances on residential installs.
- Function: Carries low-voltage communication signal only — not a power or refrigerant line.
- Fits: EG4 mini split systems requiring a separate communication wire between indoor and outdoor units.
- Does NOT fit: Non-EG4 mini split brands [NEEDS VERIFICATION] — cross-brand compatibility is not confirmed in manufacturer data.
- Does NOT replace: The refrigerant lineset or the electrical power whip — this is a signal cable only.
- Dedicated communication conductor matched to EG4 indoor/outdoor terminal blocks.
- 30-foot length covers typical single-story and multi-room install runs without splicing.
- Simplifies signal wiring on multi-zone EG4 setups where consistent comm cable reduces troubleshooting time.
- Straightforward drop-in replacement for a damaged or missing OEM comm cable.
| Spec | Value | Unit |
|---|---|---|
| Length | 30 | ft |
| SKU | EG4MISPLICOMM30 | — |
| Brand | EG4 | — |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
- Fits: EG4 mini split systems requiring a 30-foot indoor-to-outdoor communication wire run.
- Does NOT fit: Other mini split brands not verified for compatibility [NEEDS VERIFICATION].
- Does NOT function as: A refrigerant lineset or a power circuit conductor.
| Consideration | Guidance |
|---|---|
| Wiring Class | Low-voltage communication/control wiring — keep separated from line-voltage power runs |
| Installation | Terminate per EG4 indoor/outdoor unit wiring diagram; verify polarity before power-up |
FAQ
What length is this communication cable?
This cable is 30 feet long, sized to run between the indoor and outdoor units of an EG4 mini split system.
Will this fit any mini split brand?
It is built for EG4 mini split systems. Compatibility with other brands is not confirmed, so use it only with EG4 indoor and outdoor units.
Does this cable carry refrigerant or power, or just signal data?
This is a communication/signal cable only. It does not carry refrigerant (that's the lineset's job) or high-voltage power (that's a separate electrical whip).
Can I cut this cable shorter if I don't need the full 30 feet?
The manufacturer specification for trimming or splicing this cable is not provided in our source data. [NEEDS VERIFICATION] Check the Resources tab or contact us before shortening it.
Warranty & Registration: Manufacturer warranty terms for this specific communication cable are not detailed in the available manufacturer data. [NEEDS VERIFICATION] Please refer to the "Resources (System Manuals and Warranty)" Tab above on this page for the current EG4 warranty documentation, or contact us before you order and we'll confirm the terms for you. We always reply back.
