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43
Clearing Alarms
Once the alarm has been identified and the cause has been re-
moved (e.g. replaced faulty sensor) the alarm can be cleared
from the display.
To clear an alarm, perform the following:
1. Navigate to the desired alarm.
2. Press the
(Enter) button. ERASE? displays.
3. Press the
(Enter) button. ALARM ERASED displays.
4. Press the
(Menu up/Exit) button to complete the
action and return to the previous menu.
NOTE: If the alarm still exists after clearing it, it is redisplayed
within 5 seconds.
Low Ambient Control (Factory Option)
If the unit comes with Electro-Mechanical (EM) control, then
no adjustment is necessary.
If the unit comes with PremierLink or RTU Open control op-
tion, then refer to its installation control manual for details on
adjusting “Cooling Lock-Out” setting and configure for the
specific job requirements.
Staged Air Volume (SAV™) with Variable Fre-
quency Drive (Factory Option)
For details on operating 48HC 2 stage cooling units equipped
with the factory-installed Staged Air Volume option, refer to
the
Variable Frequency Drive (VFD) Installation, Setup and
Troubleshooting Supplement
.
Comfort
Link Controls (Factory Option)
For details on operating 48HC units equipped with the factory-in-
stalled
Comfort
Link controls option, refer to the
Controls, Start-
Up, Operation and Troubleshooting for 48/50HC 04-28 Single
Package Rooftop Unit with ComfortLink Controls
manual. See
Fig. 61-64 for
Comfort
Link controls and wiring diagrams.
Fig. 61 — 48HC14 Control Box Component Locations with
Comfort
Link Controls
CAUTION
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage.
Be sure to allow enough time for compressor startup and
shutdown between checkout tests so that you do not short-
cycle the compressors.
Summary of Contents for WeatherMaster 48HC14
Page 5: ...5 Fig 2 Unit Dimensional Drawing 14 Size Unit ...
Page 6: ...6 Fig 2 Unit Dimensional Drawing 14 Size Unit cont ...
Page 9: ...9 Fig 4 Roof Curb Details ...
Page 25: ...25 Fig 48 48HC 14 Controls Wiring Diagram 208 230 v 460 v 575 v ...
Page 26: ...26 Fig 49 48HC 14 Power Wiring Diagram 208 230 v 460 v ...
Page 27: ...27 Fig 50 48HC 14 Power Wiring Diagram 575 v ...
Page 29: ...29 Fig 53 Typical Humidi MiZer Adaptive Dehumidification System Humidistat Wiring ...
Page 44: ...44 Fig 62 48HC14 ComfortLink Control Wiring Diagram ...
Page 45: ...45 Fig 63 48HC14 ComfortLink Power Wiring Diagram ...
Page 46: ...46 Fig 64 48HC14 ComfortLink with Humidi MiZer Power Wiring Diagram ...