FOGATTI InstaGas Classic 90 Series 4.0 GPM 90,000 BTU Propane Tankless Water Heater User Manual

1. Introduction

This manual provides essential information for the safe and efficient operation, installation, and maintenance of your FOGATTI InstaGas Classic 90 Series 4.0 GPM 90,000 BTU Propane Tankless Water Heater. Please read all instructions thoroughly before installation and use. Retain this manual for future reference.

Image 1.1: FOGATTI InstaGas Classic 90 Series Tankless Water Heater, front view.

2. Safety Information

Your safety and the safety of others are paramount. This water heater must be installed and serviced by a qualified professional in accordance with all local codes and regulations. Failure to follow these instructions could result in property damage, personal injury, or death.

2.1 General Safety Precautions

• This appliance is designed for indoor installation only.
• Ensure adequate ventilation as specified in installation guidelines.
• Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
• Verify that the gas supply type (Liquid Propane) matches the appliance requirements.
• Regularly inspect the unit for any signs of damage or leaks.

2.2 Safety Features

The FOGATTI InstaGas Classic 90 Series includes several safety features:

• Dry Combustion Protection: Prevents operation without water flow.
• Overheat Protection: Shuts down the unit if water temperature exceeds safe limits.
• Anti-Freeze Protection: Protects the unit in cold environments (requires power supply).
• Flame Failure Protection: Automatically cuts off gas supply if the flame extinguishes.
• Leakage Protection: Detects water leaks within the system.
• IPX4 Waterproof: Provides protection against splashing water.

Image 2.1: FOGATTI Tankless Water Heater highlighting CSA certification and integrated safety features.

3. Setup and Installation

Professional installation is recommended to ensure proper function and compliance with all safety standards.

3.1 Unpacking and Inspection

Carefully remove the water heater from its packaging. Inspect the unit for any shipping damage. Do not install a damaged unit. Verify all included components are present:

• Tankless Water Heater x 1
• User's Manual x 2 (English and French Version)
• Quick Installation Poster x 1
• Assembly Kit x 1 (Wood Screw x 4, Expansion Bolt x 2, Plastic Wall Plug x 4)
• Warranty Card x 1

3.2 Location Requirements

• Install indoors only.
• Choose a location with adequate space for maintenance and proper ventilation.
• Ensure the mounting surface is capable of supporting the unit's weight (approximately 24.5 lbs).
• Avoid locations where the unit may be exposed to freezing temperatures unless proper anti-freeze measures are in place.

3.3 Connections

The unit requires the following connections:

• Water Inlet: 3/4" NPT
• Water Outlet: 3/4" NPT
• Gas Inlet: 3/4" NPT (for Liquid Propane)
• Electrical Supply: 120V AC, 60Hz
• Venting: 3-inch OD (Outer Diameter)

Image 3.1: Installation diagram showing water, gas, and electrical connections, along with unit dimensions (22.76" H x 14.57" W x 7.0" D).

A service valve kit is required for proper installation and maintenance (additional purchase). Ensure hot and cold water pipes are correctly identified and connected. Incorrect connections will prevent the unit from operating.

4. Operating Instructions

The FOGATTI InstaGas Classic 90 Series provides instant hot water on demand. The unit features a digital display and controls for temperature adjustment.

4.1 Initial Startup

1. Ensure all gas and water connections are secure and leak-free.
2. Open the main gas supply valve.
3. Open a hot water faucet in your home to allow water to flow through the unit.
4. Plug the unit into a 120V AC power outlet.
5. The unit will detect water flow and initiate the heating process.

4.2 Temperature Control

The built-in chip adjusts heating power approximately 1,000 times per second to maintain water temperature within ±2°F of your set point, ensuring a consistent and comfortable experience.

Image 4.1: Graph illustrating the precise temperature control of FOGATTI water heaters compared to general water heaters.

Use the control panel on the front of the unit to adjust the desired water temperature. Refer to the quick installation poster or the detailed user manual (included) for specific button functions.

4.3 Multi-Point Water Supply

This unit is capable of supplying hot water to 2-3 locations simultaneously, such as kitchens, bathrooms, and restrooms, depending on the flow rate and inlet water temperature.

Image 4.2: Diagram illustrating the multi-point water supply capability of the tankless water heater.

Image 4.3: Ground water temperature map for the U.S. and a chart detailing maximum flow rate (GPM) and simultaneous shower use based on inlet water temperature for the 90,000 BTU model.

5. Maintenance

Regular maintenance ensures the longevity and efficient operation of your tankless water heater. It is recommended to have the unit inspected and serviced annually by a qualified professional.

5.1 Descaling

Over time, mineral deposits (scale) can build up inside the heat exchanger, reducing efficiency. The unit features anti-scale technology, but periodic descaling may still be necessary, especially in areas with hard water. Consult a professional for descaling procedures.

5.2 General Inspection

• Check all water and gas connections for leaks.
• Inspect the exhaust vent for obstructions or damage.
• Ensure the area around the water heater is clear of combustible materials.
• Clean the exterior of the unit with a soft, damp cloth. Do not use abrasive cleaners.

5.3 Winterization

If the unit is installed in an unheated area or will be shut down for an extended period during freezing temperatures, proper winterization is crucial to prevent damage. This typically involves draining the water from the unit and pipes. Consult a professional for detailed winterization steps.

6. Troubleshooting

This section addresses common issues you might encounter. For problems not listed here, or if solutions do not resolve the issue, contact customer support.

6.1 No Hot Water or Intermittent Hot Water

• Check Gas Supply: Ensure the propane tank has fuel and the gas valve is fully open.
• Check Water Flow: Ensure sufficient water flow. Tankless heaters require a minimum flow rate to activate.
• Power Supply: Verify the unit is plugged in and receiving 120V AC power.
• Error Codes: Check the digital display for any error codes and refer to the detailed manual for their meaning.
• Inlet Water Temperature: In extremely cold conditions, the unit may struggle to reach desired temperatures if the flow rate is too high. Reduce flow or adjust temperature setting.

6.2 Water Not Hot Enough

• Temperature Setting: Increase the temperature setting on the control panel.
• Flow Rate: Reduce the hot water flow rate at the faucet. Higher flow rates require more heating capacity.
• Simultaneous Use: If multiple hot water outlets are in use, reduce demand or consider a higher GPM unit if this is a frequent issue.
• Scale Buildup: Significant scale buildup in the heat exchanger can reduce heating efficiency. Professional descaling may be required.

6.3 Unit Not Turning On After Power Outage

• Some units may require manual reset after a power interruption. Check the control panel for a power button or reset procedure.

7. Specifications

8. Warranty and Support

8.1 Warranty Information

FOGATTI offers a 2-year coverage for the entire unit and a 5-year coverage for the heat exchanger from the date of purchase. Please retain your proof of purchase for warranty claims. Refer to the included warranty card for full terms and conditions.

8.2 Customer Support

For technical assistance, troubleshooting, or warranty inquiries, please contact FOGATTI customer service:

• Phone: 877-216-1818
• Email: service@fogattiliving.com