This document is a user manual for Rinnai's digital gas water heater. It introduces the product's features, specifications, installation, use and maintenance information.
This Portuguese user manual covers the Komeco KO 22D/DI gas water heater of the Digital Line. It describes the heater's features — digital temperature control panel, forced exhaust fan, automatic ignition, overheat sensor that cuts the gas supply at 80 °C, pressure relief valve, water filter and flame detection — and gives the technical data table for the GLP and GN gas versions, including water flow, nominal power, gas consumption, dimensions, weight and electrical supply.
The manual then covers installation requirements such as permanent ventilation areas, the mandatory flue duct under NBR 13103, clearances and gas/water connections, followed by the procedure for converting the KO 22D/DI G1 from 220V to 127V using its internal voltage transformer. It continues with operating instructions, use of the digital panel, fault codes, symptoms and solutions, preventive maintenance precautions, how to read the product label, and the warranty and installation authentication terms. This manual is written in Portuguese.
| Gas type | GLP (LPG) or GN (natural gas) |
|---|---|
| Water flow at 20 °C rise, GLP | 22.5 L/min |
| Water flow at 20 °C rise, GN | 20.5 L/min |
| Nominal power, GLP | 30,874 kcal/h (35.9 kW) |
| Nominal power, GN | 28,638 kcal/h (33.3 kW) |
| Maximum gas consumption, GLP | 2.61 kg/h |
| Dimensions (W x H x D) | 37.0 x 56.5 x 14.0 cm |
| Weight | 16.3 kg |
| Maximum flue length | 4.5 m plus 2 curves |
| Power supply | 127/220V (60 Hz) |
| Gas inlet connection | 1/2 inch |
| Overheat safety cutoff | Gas supply cut at water temperature of 80 °C or above |
| Pressure relief valve limit | Prevents pressure from exceeding 8 kgf/cm² |
The technical table lists GLP (LPG) and GN (natural gas) versions. The heater must only receive the gas identified for it, which is shown on the label.
No. The manual states that this heater model cannot be installed inside cabinets, bathrooms or bedrooms.
Yes. The KO 22D/DI G1 has an internal voltage transformer and can be converted from 220V to 127V by following the manual's procedure.
Yes, the manual states that using a flue is mandatory for this heater, with an individual flue system for each appliance.