Freeze Prevention

The flow rate through the T-K2 is limited to a maximum of 6.9 GPM. The temperature setting, along with the supply temperature of the water will determine the flow rate the unit puts out. Consult the flow charts on the last page of this manual to determine the possible outlet temperature and flow rate combinations. Based on the United States Department of Energy method of testing water heater output, the T-K2 is rated for 240 gallons per hour, or

4.0GPM, at a 77° F rise above the inlet temperature. Refer to the following chart of typical household flow rates to determine what the T-K2 can do in a household application. Remember that for bathing, cold water will be mixed for a comfortable temperature, increasing the flow output rate.

Household Flow Rates

	Appliance / Use	Flow Rate
	Appliance / Use	(GPM)
		(GPM)
	Lavatory Faucet	1.0
	Bath Tub	4.0
	Shower	2.0
	Kitchen Sink	1.5
	Dishwasher	1.5
	Washing Machine	2.0

Taken from UPC 1997

This unit comes equipped with heaters that discourage the unit from freezing. For this freeze prevention system to operate there has to be electrical power to the unit.

The freeze prevention devices will not work if the electrical power source is disconnected. The unit has been rated for temperatures down to 5º F (-15º C) in a wind free environment. The wind chill factor will cause the unit to freeze at temperatures above 5º F (-15º C), even if the unit is installed indoors. For indoor installation in areas where the temperature will be well below freezing for extended periods of time, use the thermostat extension cable to extend the internal thermostat to the outdoors, and install a TK- TV03 backflow prevention kit so that cold air will not backflow into the flue and cause the unit to freeze. Do not install the water heater in an area with extremely cold weather. This will void your warranty and Takagi Industrial Co.

USA Inc. will not be responsible for any damage that occurs.

WARNING: The pipe heaters are located on the Flash Water Heater only. Any hot or cold water pipes located outside of the unit will not be protected. Properly protect and insulate these pipes from freezing.

If the heater will not be in use for a long period of time or if the temperatures will drop below 5º F (-15º C) with the wind chill factor, turn off heater and drain the unit of water. This applies to indoor and outdoor installations. This will keep the unit from freezing and being damaged.

Follow these instructions carefully:

1.Turn off the power supply to the Flash Water Heater.

2.Close manual gas control valve.

3.Close manual water shut off valve.

4.Open all hot water taps in the house. (Bathroom, kitchen, laundry room, etc.). When the water flow has ceased, close all hot water taps.

5.Have a bucket or pan ready to catch the water from the unit’s drain plugs. Remove the drain plugs to drain the water out of the unit.

6.Let drain for 5 minutes.

7.Securely screw the drain plugs back into place.

Follow these steps when it is again safe to use the water heater:

1.Make sure all hot water taps are closed and the drain plugs are securely attached.

2.Purge the water line of debris.

3.Open manual water control valve located on the water supply line.

4.Open all the hot water taps to verify water flows to the taps. Close hot water taps.

5.Open manual gas control valve located on the gas supply line.

6.Turn on the power supply to the Flash Water Heater.

T-K2 specifications

The Whirlpool T-K2 is a state-of-the-art tankless water heater that exemplifies advanced engineering and innovation. Designed for both residential and commercial applications, this model sets a benchmark in energy efficiency, performance, and convenience.

One of the main features of the T-K2 is its compact size. Unlike traditional water heaters that occupy significant space with bulky tanks, the T-K2 can be mounted on walls, making it an ideal choice for properties where space is at a premium. This feature alone appeals to homeowners and businesses alike who are looking to maximize their usable area without compromising on hot water supply.

In terms of performance, the T-K2 boasts impressive heating capabilities. It can provide up to 6.6 gallons of hot water per minute, ensuring that users have a continuous and reliable supply of hot water on demand. This makes it perfect for households with multiple bathrooms or businesses that have high hot water consumption requirements, such as restaurants and salons.

The T-K2 employs advanced technology for enhanced energy efficiency. Utilizing a modulating gas valve, it intelligently adjusts the amount of fuel being burnt based on the demand for hot water, resulting in optimal energy use and reduced operating costs. With an impressive energy factor rating, this model helps consumers save on their utility bills while also contributing to environmental sustainability.

Safety features are also paramount in the design of the Whirlpool T-K2. It comes equipped with an overheating protection system that automatically shuts down the unit if it begins to operate outside of the safe temperature range. Additionally, the unit has a freeze protection feature, ensuring that it can withstand cold temperatures without compromising performance.

Another key characteristic of the T-K2 is its ease of maintenance. The unit includes a straightforward digital display that provides useful diagnostic information, helping both homeowners and technicians quickly assess any issues. Its design allows for easy access to interior components, simplifying routine servicing and upkeep.

In summary, the Whirlpool T-K2 is a thoughtful combination of innovation, efficiency, and safety. With its compact design, reliable performance, advanced energy-saving technology, and numerous safety features, it stands out as a superior choice for anyone in need of an effective, high-quality tankless water heater. Whether for residential or commercial use, the T-K2 by Whirlpool is truly a leader in the industry.