Specifications

Outdoorfan controlfor Humidi-MiZersTstemunits
includesaMotonnaster(r9variable-speedcontrolofsomeorall
outdoorPans,dependingonunitmodelsize.TheMotonnaster
controlautomaticallyadjuststheoutdoorfanspeedtomaintain
approximately80to100FcondensertemperatureforcircuitA
atalloutdoormnbienttemperatures.Somemodelsizeshave
additionalon!offstagingofsomeoutdoorfans.Thisstagingis
controlledbybothoutdoortemperatureandcondensercoil
temperature.
CompressorstaNngcontrolforHumid-MiZerunitsrequires
thatcircuitAalwaysoperatewhencircuitBison.Thisapplies
tonormaloperation,servicetest,andforcontrolalarmrespons-
es.Thisoperationdifferenceisrequiredduetothetactthatthe
MotonnasteroutdoortancontrolsensescircuitAonly.
SETTINGUPTHESYSTEM The system requires instal-
lation mid confimlration of either a space relative humidity
sensor or a relative humidity switch input.
RH2.x
.... ""..............................................I?
-,, L ....................................................................
OUTDOOR AIR L ._
'_ EVAP COIL
METERING
DEVICE
_l_"_ CLOSED VALVE
[_ OPEN VALVE
3-WAY VALVE
17
INDOOR ENTERING
AIR
Fig. 6 -- Normal Cooling Mode -- Humidi-MiZer TM System
HUMIDI-MIZER COIL
I?
EVAP COIL
_l,_,,_ CLOSED VALVE
[_ OPEN VALVE
[_ 3-WAY VALVE
17
INDOOR ENTERING
AIR
Fig. 7- Subcooling Mode (Reheat1)- Humidi-MiZer System
METERING
DEVICE
46