AERCO Innovation INN 600N
The AERCO Innovation INN 600N is a gas-fired condensing commercial tankless water heater rated 625 MBH input with 93% certified efficiency (DOE 10 CFR Part 431) and up to 12:1 turndown in AERCO's published TDS.
Key figures
- Max input
- 625 MBH
- Max CSA output
- —
- AFUE
- —
- Min input
- —
Input is gas energy consumed; output is heat delivered. Never size from input alone.
AERCO Innovation INN 600N in practice
AERCO's Innovation TDS prints the INN 600N at 625 MBH input with a certified efficiency of 93% (DOE 10 CFR Part 431) and turndown up to 12:1. The unit uses AERCO's AERguard stainless-steel helical firetube heat exchanger and the Edge controller with on-board multi-unit sequencing logic for up to 16 units.
The specifications table lists 2" NPT male water inlet/outlet, a 1.5" NPT male natural-gas connection, a 6" flue and air intake (4" optional on the 600N/800N), a maximum continuous water flow of 50 GPM, 4.5 GPH maximum condensate flow, a 160 PSIG @ 210°F pressure rating, 120 VAC single-phase 60 Hz power at 20 A (11 FLA), 25.3 gallons water volume and installed weights of 980 lb dry / 1202 lb wet (1080 lb shipping).
AERCO markets the Innovation as a commercial tankless water heater line (the I&O manual titles it 'Innovation Water Heaters — Natural Gas and Propane Gas Fired Modulating & Condensing Boilers'). Boilers.ca documents it as a DHW-only appliance alongside its boiler coverage, per the official TDS wording. No official Canadian-sales statement was found, so canadianStatus stays unknown.
Best suited to
- Commercial domestic-hot-water systems in the 625 MBH input class
- Plants that sequence up to 16 Innovation units with the Edge controller
- Retrofit projects that need a small-footprint condensing water heater
Applicability and support
- Model number
- INN 600N
- Canadian availability
- unknown
- Production status
- current
- ROMA supplies
- Confirmed at consultation
- ROMA services
- Confirmed at consultation
- Warranty
- Not verified
Where ROMA provides on-site service
On-site service is currently offered in Greater Vancouver, BC, including Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Port Coquitlam, Port Moody, Delta, Langley, Maple Ridge, Abbotsford, Chilliwack, White Rock, Pitt Meadows, Tsawwassen, Anmore, Lions Bay, Belcarra, Bowen Island, Mission. Everything else on this site is reference information you can use anywhere in Canada.
Specifications
Published specifications
Values as published by AERCO (Watts). Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Input | 625 MBH | Input per the Innovation TDS specifications table. |
| Efficiency | ||
| Certified efficiency (DOE 10 CFR Part 431) | 93 % | Certified Efficiency (DOE 10 CFR Part 431) per the Innovation TDS specifications table. |
| Domestic hot water | ||
| Maximum continuous water flow | 50 GPM | Per the Innovation TDS specifications table. |
| Venting and air | ||
| Flue and air intake | 6" diameter (4" diameter optional) | Per the Innovation TDS specifications table; flue material PVC, CPVC, PP or AL29-4C per local code. |
| Physical and connections | ||
| Water inlet and outlet | 2" NPT male | Per the Innovation TDS specifications table. |
| Gas connection (natural gas) | 1.5" NPT male | Per the Innovation TDS specifications table. |
| Water volume | 25.3 gal | Per the Innovation TDS specifications table. |
| Weight, installed (dry / wet) | 980 / 1202 lb | Weight, Installed (dry, wet) per the Innovation TDS specifications table. |
| Shipping weight | 1,080 lb | Per the Innovation TDS specifications table. |
| Electrical | ||
| Electrical requirements | 120 VAC, single phase, 60 Hz, 20 A (11 FLA) | Per the Innovation TDS specifications table. |
| Operating limits and other | ||
| Turndown ratio (up to) | 12:1 | Turndown Ratio (up to) per the Innovation TDS specifications table. |
| Maximum condensate flow | 4.5 GPH | Per the Innovation TDS specifications table. |
| Pressure rating | 160 PSIG @ 210°F | Per the Innovation TDS specifications table. |
| NOx emissions certifications | SCAQMD, TCEQ | Per the Innovation TDS specifications table. |
| Standard listings and approvals | UL, cUL, ASME (HLW) | Per the Innovation TDS specifications table. |
Manuals
Alerts documented for this model
- AIRFLOW FAULT DURING PURGE
- AIRFLOW FAULT DURING IGN
- AIRFLOW FAULT DURING RUN
- DELAYED INTERLOCK OPEN
- DIRECT DRIVE SIGNAL FAULT
- FFWD TEMP SENSOR FAULT
- FLAME LOSS DURING IGN
- FLAME LOSS DURING RUN
- HEAT DEMAND FAILURE
- HIGH EXHAUST TEMPERATURE
- GAS PRESSURE FAULT
- HIGH WATER TEMPERATURE
- HIGH WATER TEMP SWITCH OPEN
- IGN BOARD COMM FAULT
- IGN SWITCH CLOSED DURING PURGE
- IGN SWITCH OPEN DURING IGNITION
- INTERLOCK OPEN
- LINE VOLTAGE OUT OF PHASE
- LOW WATER LEVEL
- NETWORK COMM FAULT
- OUTDOOR TEMP SENSOR FAULT
- OUTLET TEMP SENSOR FAULT
- PRG SWITCH CLOSED DURING IGNITION
- PRG SWITCH OPEN DURING PURGE
- RECIRC PUMP FAILURE
- REMOTE SETPT SIGNAL FAULT
- RESIDUAL FLAME
- SSOV SWITCH OPEN
- SSOV FAULT DURING PURGE
- SSOV FAULT DURING IGN
- SSOV FAULT DURING RUN
- SSOV RELAY FAILURE
- STEPPER MOTOR FAILURE
- WARNING EXHAUST TEMP HIGH (Flashing)
Frequently asked questions
What are the Innovation INN 600N ratings?
AERCO's TDS prints 625 MBH input, 93% certified efficiency (DOE 10 CFR Part 431) and turndown up to 12:1.
Is the Innovation a boiler?
AERCO markets the Innovation as a commercial tankless water heater; its I&O manual describes it as a modulating and condensing boiler. Boilers.ca records it as a DHW-only appliance and notes the official product-tree placement.
How many Innovation units can be sequenced?
The Edge controller includes on-board Water Heater Management sequencing logic for up to 16 units, per AERCO's TDS.
Questions about the AERCO Innovation INN 600N?
Describe what the boiler is doing and get a straight answer about the next step.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
- AERCO Innovation (600N–1350N) Technical Data Sheet (PDF) · accessed September 9, 2026
- AERCO Innovation Installation, Operation & Maintenance Manual, OMM-0078 (GF-128) (PDF) · OMM-0078 · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.