Takagi T-K3 - T-K3 ON;OFF Conditions: Overview

T-K3 Service Manual
Ver. 1.05
49
CONFI DENTIAL
12-6. T-K3 ON/OFF conditions: Overview
The T-K3 has tw o modes of ON/OFF conditions.
Select either mode by changing Dipsw itch 3 on the
upper bank of dipsw itches as shown in the picture
to the right.
Intermittent mode
This mode is the nor mal, default mode.
Continuous mode
This mode is f or heating systems that deal w ith
smaller temperature differentials.
ON/OFF Conditions
Intermittent mode
(Default setting)
<Dipswitch set to OFF>
Continuous mode
<Dipswitch set to ON>
Conditions neede d to
turn the T-K3 ON.
The BTU requirement is more
than 14,880 BTU/h
A ND
The w ater flow rate is more
than 0.52 GPM
The BTU requirement is more
than 11,900 BTU/h
A ND
The w ater flow rate is more
than 0.52 GPM
Conditions neede d to
turn the T-K3 OFF
The BTU requirement is less
than 11,900 BTU/h
OR
Inlet temperature is higher
than the set temperature
OR
Outlet temperature is over
194°F
OR
The w ater flow rate is less
than 0.4 GPM
The BTU requirement is less
than 7,440 BTU/h
OR
Inlet temperature is higher
than the set temperature
OR
Outlet temperature is over
194°F
OR
The w ater flow rate is less
than 0.4 GPM