Configuration Id 2 - Lennox LGH180H Installation Instructions Manual

13 ton, 15 ton, 17.5 ton, 20 ton, 25 ton rooftop packaged units
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Air Flow Proving
Switch (S52)
Not Installed = N
Installed on M3 = C
Installed on DDC
Controller = D
Dirty Filter Switch (S27) [2]
Not Installed = N
Installed on M3 = C
Overflow Switch
(S149 / S179)
Not Installed = N
Installed on DI-2 = 2
Installed on DI-3 = 3
Motor Overload
Switch (S42)
Not Installed = N
Installed on DI-2 = 2
Installed on DI-3 = 3
* When Phase / Voltage detection monitoring is enabled on a three-phase
system and configured incorrectly will result in the system going into de­
mand hold status and then restart after three minutes.

Configuration ID 2

1 2 3 4 5 6 7 8 9
[1]
[3]
[4]
FIGURE 39
Page 59
[9] Electric Heat
(Field-Installed)
N = Not Installed
Y = Installed
[8] Load Shedding
N = Not Installed
G = Global (P297 - pin 9)
L = Installed on DI-2
U = Installed on DI-3
[7] Zone Bypass Damper
N = Not Installed
Y = Installed
[6] Ultra Violet Lamp
N = Not Installed
Y = Installed
[5] Phase / Voltage Detection *
N = Not Installed
1 = Enabled Internal (Lennox)
2 = External (A42) Phase Detection
on DI-2
3 = External (A42) Phase Detection
on DI-3
507124-04
3/2016

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