Bosch IDS Light AC-Wiring

Bosch IDS

Cooling Today, with Just One Wire

A Heat Pump System That Works Like A/C Right Out of the Box

Used to installing straight cooling systems? Out of the box, the Bosch Inverter Ducted Split (IDS) system operates as a cooling-only unit. That means you can install this heat pump just like any standard A/C system, using only two wires. When the homeowner is ready to turn on the heat, you can enable heating simply by energizing the O/B wire, adding a heat pump thermostat, and 1-2 additional low voltage conductors.

How This Setup Works:

▶ Installs like A/C: Ships in coolingonly mode for familiar installs

▶ Heat is built-in: Just one wire needed to unlock it

▶ No special thermostat required: Compatible with OEM and standard Heat Pump thermostats (e.g., Bosch BCC110) as well as 1 heat 1 cool non-communicating thermostats

▶ Perfect for hot regions with mild winters

▶ Electric heat option available : Connect W1/W2 if using Bosch heat strip kits

▶ Futureproofs your install: Add heating later without changing equipment

No Need for Complicated Controls

Connect Standard Thermostat Wiring

What If I Don’t Want to Pull Another Wire?

You don’t have to. That’s the beauty of it. Bosch IDS will run as a reliable, energy-efficient A/C unit with only two wires connected. If your customer only needs cooling for now, leave it as-is. If they want heat later — or if incentives change — all it takes is a simple wire to the O/B terminal to make it happen. No board swaps. No equipment upgrades. Just one wire.

Want to See It In Action?

Watch the Bosch IDS install video for a walkthrough of wiring, setup, and thermosatat configuration. See how simple it is to get started with a cooling-only setup and enable heating later.

Installer Tip

If heating isn’t working, check the O/B wire. Most field issues are fixed with this simple check. Additionally, you should check to make sure the thermostat is configured to energize “B” and NOT “O” in the installer set-up section.

For install questions or product info, reach out to your Bosch rep or visit our training page.