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K7127 Ref.Detect. O/M
6/3/01
System Maintainance
o
For the RD1 the offset voltage can be adjusted by accessing the remote sensor
assembly. Unclip the white cover from the remote sensor assembly, and inside the
sensor housing there is a small potentiometer. By adjusting this potentiometer the
offset voltage can be reset to 0.25V.
TOP
TOP
+
–
Buzz
MAKE
COM
o
For the RD2 the offset voltage can be adjusted by removing the cover from the
unit. A potentiometer is located on the main PCB at the far left, directly above the
sensor. By adjusting this potentiometer the offset voltage can be reset to 0.25V.
+ sig – mute + buzzer
Sensor signal offset pot
offset on clean air = 0.25V
Only in Condensing Unit Detector
G
Sensor life is between 5 and 7 years. If a sensor should fail, then a new sensor
which is a direct replacement, can be obtained from the Toshiba Service Parts
sales desk.
8:36 am
Page 9
GB
Indoor Unit Detector Only
Sensor signal offset pot offset on clean air = 0.25V
(unclip white cover to gain access)
Sig
AI
ALARM
N
L
Gas Sensor
control board
9
9