16
XIV. ADDITIONAL FIGURES AND TABLES
Figure 4 – Horizontal Unit Hanging Bracket
INDICATOR LIGHTS
CONDITION PWR
ASC
LP HP FP OFD
COMMENTS
AC power applied Blown fuse or power removed.
" X X ASC indicator on for 4' 35" on power initialization.
" X Power applied - unit running or waiting for a call to run.
Run cycle complete X X ASC indicator ON for 30 to 60 seconds after compressor shutdown.
LP (F/A heating - before call)
X X Indicates LP switch position (ON = open).
LP (F/A heating - after call) X X X Lockout, indicators latched and resettable by removing power.
LP (F/A cooling - before call)
X X Indicates LP switch position (ON = open).
LP (F/A cooling - after call) X X X LP delayed 90 seconds on initial call, then ASC and LP
indicator ON while switch is open.
" X X flash
LP indicator will flash if switch closed during ASC period.
Indicator reset after ASC period.
HP (F/A heating - before call)
X X Indicates HP switch position (ON = open).
HP (F/A heating - after call) X X X Lockout, indicators latched and resettable by removing power.
HP (F/A cooling - before call)
X X Indicates HP switch position (ON = open).
HP (F/A cooling - after call) X X X Lockout, indicators latched and resettable by removing power.
FP (F/A heating - before call)
X X Indicates FP switch position (ON = open).
FP (F/A heating - after call) X X X Lockout, indicators latched and resettable by removing power.
FP (F/A cooling) X FP switch disabled in cooling mode.
Condensate Overflow Detector
X X Indicator ON while water present on sensor (optional).
(F/A heating)
Condensate Overflow Detector
X X Indicator ON while water present on sensor (optional).
(F/A cooling - before call)
Condensate Overflow Detector
X X X Indicator ON while water present on sensor, ASC period with
(F/A cooling - after call) call for F/A cooling only (optional).
Table 6 – Controller #20-1038 LED Indicator Chart
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