Whirlpool T-K2 User Manual
Operation
General
The Flash Water Heater is an instantaneous,
tankless water heater designed to efficiently
supply domestic or commercial hot water. The
principle behind the Flash water heater is
simple: Once a hot water tap is opened, the
Flash’s flow sensor detects that hot water is
needed, and automatically commands the
computer to electronically ignite the burners,
and heat water. During operation, the
computer monitors the water temperature and
flow rate, and controls the gas flow and fan
speed to maintain a constant output
temperature. After the burners are ignited the
“fire on” lamp will be lit.
tankless water heater designed to efficiently
supply domestic or commercial hot water. The
principle behind the Flash water heater is
simple: Once a hot water tap is opened, the
Flash’s flow sensor detects that hot water is
needed, and automatically commands the
computer to electronically ignite the burners,
and heat water. During operation, the
computer monitors the water temperature and
flow rate, and controls the gas flow and fan
speed to maintain a constant output
temperature. After the burners are ignited the
“fire on” lamp will be lit.
0.75 gallons per minute is required to turn the
burners on, but after the burners are ignited,
the flow rate can drop to 0.6 gallons per
minute without the burners turning off.
As long as water, gas and electricity are
connected, there will be an endless flow of hot
water. To turn on your water heater, just open
a tap. To turn the heater off, just close the tap.
burners on, but after the burners are ignited,
the flow rate can drop to 0.6 gallons per
minute without the burners turning off.
As long as water, gas and electricity are
connected, there will be an endless flow of hot
water. To turn on your water heater, just open
a tap. To turn the heater off, just close the tap.
Turning It On
To turn on the Flash water heater
1. Open a hot water tap, or turn on water
demanding appliance.
2. Unit will detect flow, burners will ignite,
“Fire On” lamp will light up.
3. If necessary, mix in cold water to get a
comfortable temperature.
Turning It Off
To turn off the Flash water heater
1. Close the hot water tap, or turn appliance
off.
2. Flow will diminish, unit will shut off.
3. “Fire On” lamp will go out.
3. “Fire On” lamp will go out.
Temperature
The output temperature of the T-K2 has been
factory set for a maximum 120
°
F (50
°
C).
This is electronically controlled by the
computer and can be adjusted with a TK-
RE01 temperature controller, or with the
dipswitches on the computer board (See pgs.
21-22 for dipswitch settings). Further
adjustment may be made by mixing in cold
water with the hot to obtain the ideal water
temperature.
The flow rate possible out of the unit is
dependent on the temperature setting chosen.
Consult the flow charts on the last page of this
unit to determine the possible outlet
temperature and flow rate combinations.
WARNING: Temperatures above 125º F (52º
C) can cause severe burns or death from
scalding. Children, the disabled and the
elderly are at a high risk of being injured. Feel
the water temperature before bathing or
showering. Do not leave children, disabled
persons, or the elderly unsupervised.
computer and can be adjusted with a TK-
RE01 temperature controller, or with the
dipswitches on the computer board (See pgs.
21-22 for dipswitch settings). Further
adjustment may be made by mixing in cold
water with the hot to obtain the ideal water
temperature.
The flow rate possible out of the unit is
dependent on the temperature setting chosen.
Consult the flow charts on the last page of this
unit to determine the possible outlet
temperature and flow rate combinations.
WARNING: Temperatures above 125º F (52º
C) can cause severe burns or death from
scalding. Children, the disabled and the
elderly are at a high risk of being injured. Feel
the water temperature before bathing or
showering. Do not leave children, disabled
persons, or the elderly unsupervised.
Flow