Honeywell VNT5150H1000 Ventilation Hood User Manual


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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.
ERV/HRVVentilationSystems69-2480EF—01
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
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