User Manual for Drija 13L Gas Water Heater

Quick guide from the manual

This gas water heater is designed for domestic hot water supply. It requires professional installation by a registered gas installer. Key safety requirements include ensuring the unit is installed in a well-ventilated room with a floor drain, and that the flue pipe is correctly installed to exhaust waste gas outdoors. Always ensure the gas type matches the rating label (LPG 2800Pa) and that the power supply is 110V/50-60Hz.

Features

• Intelligent CPU control for performance management.
• Temperature setting range: 35°C to 65°C.
• Low water pressure start (0.02MPa).
• Memory function for previous settings.
• Multiple safety protections: anti-dry combustion, flame failure protection, overheat protection, and wind pressure protection.

Installation

Installation must be performed by a registered gas installer. The unit must be mounted vertically on a wall with at least 10mm clearance. Ensure the unit is grounded. The flue pipe must be installed to discharge exhaust outdoors. The gap between the pipe and the wall should be sealed with a 1° leaning angle to prevent water ingress.

Operation

To operate the heater: 1. Ensure the gas type is correct, the gas supply system is leak-free, and the gas valve is turned on. 2. Turn on the power switch. 3. Open the water inlet or outlet valve; the heater will ignite automatically. 4. Use the adjusting knob at the bottom to control water flow and temperature. 5. After use, turn off the gas and water inlet valves. In freezing weather, drain the water from the heater.

Maintenance

Perform regular inspections. Before maintenance, close the main gas and water valves and unplug the power. Wipe the unit with a towel and kitchen cleanser (do not use benzene or thinner). Regularly remove and clean the filter at the water inlet using a toothbrush.

Troubleshooting and Error Codes

The unit features a display for error codes to assist in diagnostics:

• E0: Probe malfunction. Check connections of water flow transducer and temperature sensor.
• E1: Ignition failed. Check if the gas valve is open or if there is air in the gas pipe.
• E2: Sudden flame-out. Check flame probe connection.
• E3: Overheat protection. Water temperature exceeded 75°C.
• E4: Flue-pipe blocked or wind-pressure switch malfunction.
• E5: Solenoid-controlled valve malfunction.
• E6: Flame cannot die out immediately after closing water.
• E7: Fan motor malfunction.
• E9: Dry-combustion malfunction.
• EA: Water valve malfunction.
• EN: Time-out (normal operation limit).