Honeywell 69-2480EF05 Ventilation Hood User Manual


  Open as PDF
of 68
 
TheERVandHRVunitsareequippedwithanautomaticdefrostfeaturetoeliminateanyicebuildupon
the core.
• Automatic defrost is initiated once every hour when the fresh air supply temperature drops to 23°F
(-5°C) or colder.
• Thedefrostcycleoperatesbyturningoffthesupplyfanwhilecontinuingtooperatetheexhaustfan.
• Theexhaustfanspeedisadjustedproportionallybasedontheoutdoortemperature,initiallyoperating
at low speed.
• As the outdoor temperature continues to drop, the exhaust fan speed will increase, and will operate at
maximum speed when the outdoor temperature is -4°F (-20°C) or less.
• Defrostcyclerunsfor4minuteswiththesupplyfanoff,followedby40minutesofcontinuousnormal
operation.
• Defrost cycles will continue to repeat as long as the temperature is 23°F (-5°C) or less.
TrueFRESH™ ERV/HRV Ventilation Systems 69-2480EF—05
18
M28986
Thewiringterminalblockislocatedbehindthecontrolmoduledooronthesideoftheunit.
Toaccesstheterminalblock,openthecontrolpaneldoorbyswingingitopenandtotherightasshown
above.
CAUTION: Voltage hazard.
Can cause equipment damage.
Disconnect power from the unit before beginning installation.
Terminal Description
Automated Defrost
Wiring
 previous next