Concealed ducted indoor unit

Hitachi Concealed ducted indoor unit NT Series concealed ducted split indoor unit

Schedule Service Check Availability

Hitachi Ducted Indoor Units Concealed ducted indoor unit Repair, maintenance, and replacement planning

Technical Specifications

Product Specs

Brand: Hitachi
Representative series: NT Series concealed ducted split
Equipment type: concealed ducted indoor unit
System format: split inverter system
Application: residential ducted mini-split indoor unit
Capacity range: 2.2 kW to 16 kW heating and cooling listed by source
Design note: shorter-height concealed unit for ceiling spaces
Maintenance feature: FrostWash automatic heat-exchanger cleaning listed by source
Installation flexibility: refrigerant and drainage outlets available on both sides
Line length guidance: source lists up to 30 m piping length and 20 m height difference
Model or series: NT Series concealed ducted split indoor unit
Product group: Ducted Indoor Units
System role: Ductless or mini-split system equipment
Compatibility check: Match with compatible outdoor equipment, controls, airflow, voltage, and capacity before service or replacement.
Verified source: archiexpo.com

Useful troubleshooting details

Confirm the exact Ducted Indoor Units model number, serial number, capacity, voltage, refrigerant or fuel type, controls, and matched equipment.
Share current symptoms, alerts or error codes, recent maintenance, access notes, and whether the issue is urgent or planned.
For replacement planning, note comfort goals, existing equipment age, and any heat-pump, electrification, or rebate-related questions.

Service planning

How GreenFlow handles NT Series concealed ducted split indoor unit requests

Identify the equipment

Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.

Describe the service issue

Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.

Review access and history

Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.

Plan the next step

GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.

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Our Happy Customers

Anna F.

They showed up within an hour of me making the call on a Sunday. They fixed our system and taught us how to replace the fuse in the future. We would definitely call again.

Jack B.

Andrey always does a great job.

Michael C.

always available, easy to get a hold of, as a property manager I get lots no heat emergency, usually get to it same day or next day

Ray

Just had a service call because my tankless water heater stopped working with E110 code. Andrey located the root cause real quick and fixed the issue within half an hour, also gave reasonable recommendations for further maintenance.

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