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INSTALLATION OF PCB OPTION
2) Press the K4 switch (applicable models: RHF*****) or K2 switch
(applicable models: AN*********) in the MAIN PCB 5 times in
succession to check CO
Applicable Models: RHF*****
b
c e d
G2
g
a f G1
SEG1
SEG2
No. of
Press
1
Exhaust Fan RPM
2
Supply Fan RPM
3
Indoor Temperature
4
Outdoor Temperature
5
6
Number of Units
level is displayed properly.
2
G2 b c e d
g
a f G1
SEG3
SEG4
Item
Example
1,350RPM
950RPM
25ºC
30ºC
CO
Level
1,220ppm
2
12
(Continued)
Applicable Models: AN*********
G2
g
SEG1
Display Part
SEG1
SEG2
1
2
Off
3
Off
4
Off
5
3
6
Off
b
c e d
G2 b c e d
a f G1
g
a f G1
SEG2
SEG3
SEG4
SEG3
SEG4
1
3
5
9
5
2
5
3
0
1
2
2
Off
3
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