Flow
The flow rate through the T-K1 is limited to a
maximum of 5.3 GPM. The flow rate, along with
the supply temperature of the water will determine
the outlet temperature of the water. 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-K1 is rated for 216 gallons per
hour, or 3.6 GPM, at a 77
°
F rise above the inlet
temperature. Refer to the following chart of typical
household flow rates to determine what the T-K1
can do in a household application. Remember that
for bathing, cold water will be mixed for a
comfortable temperature, increasing the flow
output rate.
Washing Machine
2.0
Taken From UPC 19
Freeze Prevention
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, 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.
Household Flow Rates
Appliance / Use
Flow Rate
(GPM)
Lavatory Faucet
1.0
Bath Tub
4.0
Shower
2.0
Kitchen Sink
1.5
Dishwasher
1.5
97
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.
4
Summary of Contents for T-K1
Page 22: ...21 ...
