Instruction Manual

5
Field Connections, Low Voltage
When a remote Humidistat is utilized, set the unit mounted humidistat to the “OFF” position.
Typical Equipment Layout Specification & Duct Connection
Blower InterLock Connections (Low Voltage)
Fan Coil / Air Handler
Control Thermostat (Typ)
G
W
Y
Existing Field Supplied
Control Wiring (Typ)
Field Supplied Control Wiring
Disconnect Existing Control Wiring
From Fan (G) Control Terminal
Reconnect to Blue Wire From DVA
Connect Brown Wire From DVA
To Fan (G) Terminal
Org
Brn
Blu
GT
GF
RF
R
C
D G Gt
Gf
Rf
*
Remove Jumper for Independent Fan Control
R
Close on RH Rise
Optional Humidistat
*
R
G
W
Y
Air Handler
DH 70
Return Air
Supply Air
Out Side Air (OSA) Hood
Manual OSA Damper
24 Volt Motorized Damper
( Power Open- Spring Closed)
With Bug Screen
(Volume Adjustment)
Optional Outside Air Ventilation
Operation
TheDH70isdesignedtodeliverdehumidied,lteredairtothelivingspace,andisequippedwithanonboard
humidistatandfancontrolandcanbeequippedwithvariousaccessoriestoenhanceitsoperation,includingaremote
humidistat,andyoursystemmayincorporateanyorallofthedescribedoperationalcomponents
Itisrecommendedthattheindoorenvironmentmaintainamaximumrelativehumiditylevelof50%to60%.Other
factorsmaydictatearelativehumidityleveldifferentthantherecommended,suchasmusicalinstruments,antiques,
books/papers,orspecialsituations.Winterminimumhumiditylevelsof30-35%maynotbeattainablewithout
supplementalhumidication(Humidier),andmaynotbedesiredduringtimesoflowoutdoortemperatures.
System Variations:
Humidity Control - Standard
Thesystemmaybeinstalledasfreestandingorincorporateductingtoanareaorexistingheating/coolingsystem.
ControlisprovidedbyHumidistatwithadialstemtypeadjustmentbuiltintotheunit.Setthedesiredhumidityset
pointbyturningthedialstemattothecorrespondingsetpointindicatedonthefaceoftheunit.Thishumidity
controlunitwilloperatethecompressorandcirculationfanwhenthedehumidicationsystemisactivated,working
onlywhenthereisacall,ordemandfordehumidication.
Remote Humidity Control (Wall Mounted)
When a remote Humidistat is utilized, set the unit mounted humidistat to the “OFF” position.
Thiscontrolprovidesthesamecontrolfunctionsasabovebutwithgreaterprecisionandcanbelocatedinthespace
foreasieraccess,andmayincludeadditionalfeatures.Availableasanaccessoryitemthesecontrolsmayhave
differentfeatures;refertoinstructionsincludedwiththecontrol.