Air innovations HEPAir 24S050, Инструкция по установке, эксплуатации и обслуживанию, Страница: 44 / 51

44
Basic Troubleshooting
A. Room Temp Too Low
Possible Causes Recommended Action
Detective temperature sensor Check and replace
Defective controller Check and recalibrate or replace
Defective re-heat coil or SSR Check and replace
Too much evaporator air
Check and adjust mixture or evaporator air and
return air
Low room load
Check room load against capacity of unit. May
need to adjust factory setting of HGBV
B. Room Temp Too High
Possible Causes Recommended Action
Defective temperature sensor Check and replace
Defective controller Check and recalibrate or replace
Defective re-heat coil or SSR Check and replace
Defective evaporator fan
Check and replace defective parts. See wiring
schematic and parts list
Dirty evaporator coils or filters Clean coil, Clean or replace filter
Compressor not running
Check unit controls and wiring using schematic.
Replace components as required
Defective evaporator fan
Check and replace defective parts. See wiring
schematic and parts list
Excessive room load Check room load against design capacity
C. High Room Humidity
Possible Causes Recommended Action
Too much evaporator air Check flow volume of makeup air fan
Too warm evaporator coil May need to adjust factory setting of HGBV
Too much humidification
Check unit for proper operation against service
manufacturer’s service manual
D. Low Room Humidity
Possible Causes Recommended Action
Too little evaporator air Check flow volume of makeup air fan
Evaporator coil too cold May need to adjust factory setting of HGBV
Humidifier not functioning
Check unit for proper operation against service
m
anufacturer’s service manual