T-K3 Service Manual
Ver. 1.05
14
CONFIDENTIAL
10-2. Gas manifold
T-K3 Part #
#103
Takagi Part #
EKK1F
Checkpoint
N/A
Function
Failure events
Effects on the T-K3
if the manifold fails.
Error codes when
the manifold fails.
Diagnostic
Color/Number of
wires
Blue -Red
DC 78~100V / 0.9~1.7k
Ω
1. Visual inspection: Excessive dust deposit around the nozzles or cracks on the
manifold.
2. Check voltages and resistance: proper range of values shown below.
1. The manifold distributes gas from the gas valves to the burners. The manifold
has two types of the nozzles: one type for gas-rich burners (16 nozzles) and the
other for air-rich burners (15 nozzles)
2. There are 3 zones within the manifold, to ensure efficient combustion operation.
1. Dust deposit on the manifold. 2. Gas leakage from a failed manifold.
3. Ignition failure. 4. Imperfect combustion.
1. The burners cannot receive proper gas flow from the manifold, which can cause
poor combustion in the combustion chamber. In this case, the AFR rod will detect
an improper flame condition and computer will take safety measures.
2. Gas leakage from the manifold.
111
121
9 -1/ 8" (23 2mm)
6-7/
8"
(
175m
m)
Nozzles for gas-rich burners
Nozzles for air-rich burners
