Takagi T-K3 Service Manual

T-K3 Service Manual
Ver. 1.05
15
CONFI DENTIAL
10-3. Fan motor
T-K3 Part # #104 Takagi Part # EKK25 C heckpo int G
Function
F ailure events
Effects on the T-K3
if fan motor fails
Error codes when
the fan motor fails.
D iagnostic
Red-Blue
Yellow-Blue
Orange-Blue
White-Blue
Color/Number of
wires
To pro vide com bustion air into the burner ch am ber and to exh au st flue gas.
1. Visual inspection: connection/breakage of wires or dust (causing electrical
shorta ge )
2. Voltage check: proper range of voltages shown below.
1. Fa n speed fail ure , causing abnormal sounds with o r witho ut combustion in the
operation.
2. Unexpected working caused by the connectors of the fan motor getting wet.
3. Drops out from the bottom of the combustion chamber
1. T-K3 does not function properly
2. Failure to ignite or abnormal ignition
3. Unstable combustion conditions
DC 110~160V (Input)
D C 13~17V (Input)
611
DC 2.0~6.5V (Input)
Verify the fan motor speed using the Diagnostics Mode of the
TM-RE10 temperature remote controller. See Section 12-1 for
details.
A
S
A
H
I
6-1/2" (165.5mm)
3-3/ 4"(95.75mm)
Freez e protect ion thermo stat
Fan da mper

Takagi T-K3 Specifications

General

Type	Tankless
Installation Type	Indoor
Maximum BTU Input	199, 000 BTU/h
Gas Connection Size	3/4"
Vent Size	3"
Hot Water Flow Rate (at 35°C rise)	6.6 GPM
Maximum Input	199, 000 BTU/h