Instruction Manual

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DH70 - Crawl Space, Attic or Basement

Whole House Dehumidiﬁer

Installation & Owners Manual

Speciﬁcations

• Model:DH70

• Capacity:70pints/day,(3.25lbs./hr)@80°/60%RH

• Electrical:110-120VAC,6.7FLAAmps,60Hz,grounded

• OperatingReturnAirTemp.Range:50°Fmin.,90°Fmax.

• AirFlow:

• 280CFMwithoutexternalducting

• 235CFM@.30IWGexternalstatic

• 195CFM@.50IWGexternalstatic

• RefrigerantCharge:17.5oz.R-410A

• Ductconnections:Returnductange:8”Round,Outlet8”Round,

• FilterSize:HighEfciency(MERV11):Pleated11-3/4”X11-3/4”X2”

• Size(Clearance):14”Heightx26”Widthx14”Depth,12”minimumfrontorrearclearanceforlterservice.

• Weight:65pounds(ShippingWeight80pounds)

Read and Save These Instructions

FORMNO.DH70REVA

Humidistat

27.25

23.25

13.00

12.75

13.75

13.00

Return

Supply

8" 8"

Filter Access

3/4" NPT Drain

3/4" NPT Drain Option

Factory Installed Plug

Grounded 120 V Power Cord - 90"

Service Access

Ajustable Legs 1/4"- 1"

Low Voltage TerminalHumidistat

LEFT SIDE VIEW

TOP VIEW

FRONT VIEW

RIGHT SIDE VIEW

BACK VIEW

DH 70

Read the installation operation and maintenance instructions carefully before installing and using this unit.

Proper adherence to these instructions is essential to obtain maximum beneﬁt from the DH70 system.

Installation contrary to these guidelines or lack required maintenance will void warranty.

Unit Location

TheDH70canbeinstalledinavarietyoflocationstomeetthe

owner’sneedsaslistedbelow.Inallcaseskeepthefollowing

cautionsinmind:

• Theunitisdesignedtobeinstalledindoorsinaspacethatis

protectedfromrain,oodingand/orotherformsofexcesswater.

Unitisnotdesignedtobeexposedtochlorinatedpoolconditions

orspaceswhereunitwillbeexposedtocorrosivechemicalsor

conditions.

Installtheunitwithspacetoaccessthefrontpanelfor

maintenanceandservice.Alsoalloweasyaccesstothelter

coverpanel.DO NOT INSTALL THE UNIT WITH THE FRONT

PANEL OR FILTER COVER PANEL INACCESSIBLE.

• Avoiddischargingtheairdirectlyatpeople,overthewaterinpool

areas,orotherareasorobjectswheredehydrationorevaporation

ofmoistureisnotdesired.

• Ifusednearwetareas,becertainthereisNOchancetheunitcouldfallintothewaterorbesplashedandthatitis

wiredintoaGROUNDFAULTINTERRUPTERprotectedcircuit(seelocalcodesforotherrequirements).

• AsecondarydrainpanMUSTbeplacedundertheunitifinstalledabovealivingareaoraboveanareawherewater

leakagecouldcausedamage(seelocalcodesforotherrequirements).

• DO NOTlocatetheDH70directlyonstructuralmemberswherenoiseorvibrationmaybeobjectionable.TheDH70

isequippedwithadjustablesupportfeettoraiseandleveltheunitfromthemountingsurface,theseadjustablefeet

shouldbeutilizedtoprovideimproveddrainagefromthedrainpanandshouldbeadjustedtotiltslightlytowardthe

drainutilized.

By GeneralAire

Summary of content (8 pages)

PAGE 1
Read and Save These Instructions Specifications • • • • • • • • • • By GeneralAire® DH70 - Crawl Space, Attic or Basement Whole House Dehumidifier Installation & Owners Manual Model: DH70 Capacity: 70 pints/day, (3.25lbs./hr) @ 80°/60%RH Electrical: 110-120 VAC, 6.7 FLA Amps, 60 Hz, grounded Operating Return Air Temp. Range: 50°F min., 90°F max. Air Flow: • 280 CFM without external ducting • 235 CFM @ .30 IWG external static • 195 CFM @ .50 IWG external static Refrigerant Charge: 17.5 oz.
PAGE 2
• In a whole house system, the DH70 should be located near the existing air handling system to minimize the required ductwork for connecting of the DH70 system. When the remote control option is used, the control (humidistat) unit must be located in the space that is to be conditioned. The control (humidistat) may be low voltage (24 volt) and should be connected to the DH70 with code approved, low voltage thermostat cable.
PAGE 3
B. Ducting for Dehumidification For the ideal installation, draw air from the central part of the home and return it to the isolated areas of the home like the bedrooms, den, utility room, or family room. The ductwork of the existing HVAC system can be used to supply air to the home. If the existing supply duct adequately serves all areas of the home, discharge the supply air of the DH70 into the return of the existing HVAC system where it can distributed throughout the space.
PAGE 4
F. Installation in a Structure with No Existing Forced Air HVAC System (Whole House Dehumidification) When installing the DH70 in a structure that does not have a forced air HVAC system, a single return for the DH70 should be installed in central open area of the structure. DO NOT locate the return in a bathroom or a kitchen. The supply of the DH70 should be located in the remote areas of the structure (such as bedrooms, den, etc.).
PAGE 5
Field Connections, Low Voltage When a remote Humidistat is utilized, set the unit mounted humidistat to the “OFF” position.
PAGE 6
Typical System Operation Sequence Upon the relative humidity exceeding the humidistat set point, normally by approximately 3%, the humidistat will energize the dehumidification and air circulation components of the DH70 (note the time delay on some electronic humidistats). If the DH70 system is connected and interlocked with an existing Heating/Air conditioning system, this systems circulation fan will also be energized.
PAGE 7
Limited Warranty Applies in U.S.A. and Canada Only FAILURE TO MAINTAIN YOUR EQUIPMENT WILL VOID THIS WARRANTY COVERED EQUIPMENT The following General Filters, Inc. equipment is covered by the Limited Warranty: Whole House Dehumidifier Units: DH70 (“Covered Equipment”) TWO (2) YEARS COVERAGE - RESIDENTIAL APPLICATIONS DH70 Parts warranted by General Filters, Inc.
PAGE 8
LIMITATIONS OF REMEDIES OWNER’S SOLE AND EXCLUSIVE REMEDY UNDER THE ABOVE LIMITED WARRANTY AND COMPANY’S ENTIRE LIABILITY THEREUNDER, SHALL BE, AT THE SOLE OPTION OF COMPANY, REPLACEMENT OR REPAIR OF SUCH COVERED OR EXTENDED COVERAGE EQUIPMENT AND ITS COMPONENTS (“COMPONENTS”) BY COMPANY OR COMPANY’S AGENTS ONLY. REFRIGERANT, PIPING, SUPPLIES, TRANSPORTATION COSTS, LABOR COSTS INCURRED IN REPAIR OR REPLACEMENT OF SUCH COMPONENTS ARE NOT INCLUDED.