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VENTILATION

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If not using the dehumidifier 

to bring in outdoor air, 

press MODE to go to 

ZONE screen selections.

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If using the dehumidifier 

for ventilation, Enable and 

press MODE to select 

TIMED or AUTO.

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If ventilating based on time 

only (no outdoor temperature 

restrictions), press MODE 

at the VENT TIMED screen 

to go to ventilation time 

selection screen.

If ventilating with outdoor temperature restrictions, use the 

UP arrow to go from VENT TIMED to VENT AUTO –B and 

then the UP/DOWN arrows to select the desired ventilation 

mode, B, C, or D. Press MODE to go to the ventilation time 

selection screen.

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Vent-Auto-B:

 Ventilation 

prevented when outdoor 

temperature is below 0°F 

and above 100°F. Between 

0°F – 20°F ventilation 

is only allowed during a 

HVAC heat call.

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Vent-Auto-C:

 Ventilation 

prevented when outdoor 

temperature is below 0°F 

and above 100°F.

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Vent-Auto-D:

 Ventilation 

prevented when outdoor 

temperature is below 0°F 

and above 90°F. Between 

0°F – 40°F ventilation 

is only allowed during a 

HVAC heat call.

Vent-Auto-B, -C, -D

 modes apply outdoor temperature 

limits and require an outdoor temperature sensor to be 

installed.

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Press the UP or DOWN 

arrows to adjust the 

ventilation time per hour 

from 0 to 60 minutes. 

After selecting time, press 

MODE to go to the ZONE 

screen selections.

System Set-up and Checkout

If dehumidifier installation does not include ventilation or 

zoning and will not be wired to an external control, remote 

control or the HVAC system, proceed to 

INSTALLER TEST 

MODE 

section on page 14.

1.

  Check all wiring.

2.

  Make sure the wire access cover has been snapped 

back onto the on-board control.

3.

  Plug unit in and turn power switch to ON.

4.

  The on-board control screen should display OFF.

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NOTE:

 If the display backlight is not on, the first button 

press (any button) will only turn on the backlight. Press 

the button a second time to achieve function.

5.

  Hold the MODE button on the on-board control for 3 

seconds to enter the Installer Set-up Menu.

6.

  Navigate through the following screens to set up the 

dehumidifier for the installed application.

   Use the UP or DOWN arrows to select items and use 

MODE to switch to the next set-up option. To exit installer 

set-up, all options must be scrolled through using the 

MODE button. 

7.

  After the installer set up options have been completed, 

DONE will blink for 3 seconds and the control will return 

to the OFF screen.

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REMOTE CONTROL –  

CRAWL SPACE/SEALED ATTIC

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If not installing in a crawl 

space or sealed attic with 

Y6456 remote control, 

press MODE to go to VENT 

screen selections

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If installing in a crawl space 

or sealed attic with remote 

control, Enable and press 

MODE. The installer set-up 

is complete, proceed to 

INSTALLER TEST MODE

 

section on page 14.

12

Summary of Contents for HCWHD3-070

Page 1: ...er Table of Contents Safety Instructions 1 Specifications 2 Packaging Content 2 Set Up Dehumidifier for Installation 3 Duct Collars 3 Control Location 4 Hard Wire Modification 4 Electrical Specificati...

Page 2: ...dew point minimum Ventilation 40 F 140 F 0 RH 99 RH non condensing Filter MERV 8 washable Airflow External Static Pressure w c Airflow CFM External Static Pressure w c Airflow CFM External Static Pre...

Page 3: ...not being used See Figure 2 Make sure there are no bends in the duct coming off the outlet for a minimum of 4 This will ensure that the duct will not interfere with the backflow damper function Figur...

Page 4: ...ower supply at the 115VAC terminals on the dehumidifier United States Installations Make all electrical connections in accordance with the current edition of the NEC ANSI NFPA 70 and any local codes o...

Page 5: ...lectrical service at the main fuse or circuit breaker box SIDE PANEL ELECTRICAL SERVICE BOX POWER CORD STRAIN RELIEF 90 1900 Figure 5 Electrical Service Box Location Location Considerations Allow suff...

Page 6: ...te pump is needed install it in the condensate pan as well Install a condensate overflow safety switch i e float switch in the condensate pan remove the factory installed jumper wire between the Float...

Page 7: ...illes with 10 Duct Collars Ducting Notes Use insulated duct when the dehumidifier is located in an unconditioned space such as an attic or a garage Use a minimum of 12 of flex duct at the dehumidifier...

Page 8: ...dehumidification needs of the Primary Zone have been satisfied NOTE Dehumidifier controls will not work with iHarmony Zoning Systems IMPORTANT Normally Closed dampers must be installed in the ducts se...

Page 9: ...he compressor has a 3 minute minimum on and off time NOTE Both the ComfortSense 7000 7500 Thermostat and the iComfort Thermostats use reverse logic for dehumidification There is 24VAC between the DH a...

Page 10: ...used If an external control is used in a zoned application it must be located in the Primary Zone refer to TWO ZONE PRIMARY AND SECONDARY zoned installation on page 15 for details NOTE When using an e...

Page 11: ...wired to the HVAC system to prevent short circuiting dehumidified air directly back to the dehumidifier inlet In return to supply ducting configuration running the HVAC fan with the dehumidifier ensu...

Page 12: ...o to the ZONE screen selections System Set up and Checkout If dehumidifier installation does not include ventilation or zoning and will not be wired to an external control remote control or the HVAC s...

Page 13: ...select DISABLED and press MODE to go to the EXTERNAL control screen selections 90 1854 If installing the dehumidifier in a two zone application use the UP or DOWN arrows to select ENABLED and press MO...

Page 14: ...TEST will show on the display If wired to the HVAC system the HVAC blower will turn on and if there is are damper s wired to the DEH DAMPER terminals of the control the damper s will energize 90 1854...

Page 15: ...alling for dehumidification The dehumidifier and HVAC blower if on will turn off when the RH measured by the Y6456 drops 3 RH below the setting CRAWL SPACE OR SEALED ATTIC REMOTE CONTROL USING Y6456 1...

Page 16: ...lation is only allowed during a HVAC heat call Vent Auto C Ventilation prevented when outdoor temperature is below 0 F and above 100 F Vent Auto D Ventilation prevented when outdoor temperature is bel...

Page 17: ...resh Air Delivery Rate 1 Measure the negative static pressure of the return system at the location where the fresh air intake duct enters the return duct or dehumidifier inlet 2 See Table 2 for estima...

Page 18: ...NSTALLER SETTINGS 90 1854 With the dehumidifier power switch on press the ON OFF button to turn the dehumidifier off 90 1854 Press and hold the MODE button for 3 seconds to access the installer settin...

Page 19: ...the dehumidifier compressor will turn on to remove moisture Ventilation with an External Control When an external control is installed the dehumidifier will open the ventilation damper only when ther...

Page 20: ...SAMPLING and ON the humidity measured by the internal sensor while also displaying RH and ON and the frost sensor temperature while also displaying ON Scroll through these values and by using the UP D...

Page 21: ...LER TEST mode Incorrect damper wiring or bad connection Verify wiring between dampers and 24 VAC transformer If wired for Two Zone operation verify that 24 VAC transformer is 40 VA minimum Check all w...

Page 22: ...SENSOR LOW TEMP SENSOR HI TEMP JUMPER ORG BLUE 24 VAC CMP_N CMP_L FAN_N FAN_L NTRL_F NTRL_C LINE_F LINE_C C S R ORG RED BRN BRN BLK BLK BRN BLU GRN YEL GRN BLK BLK WHT WHT BLK WHT N L WHT BLU RED YEL...

Page 23: ...Deh Y6467 Fan 95pt Deh Y6468 No Part Description Part No 12 Wire Harness Power Deh Y6469 13 Sensor Low Temperature Deh Y6470 14 Sensor High Temperature Deh Y6471 15 Leveling Foot Deh Y6472 16 Capacito...

Page 24: ...1 6 Door Filter Access Deh Y7121 7 Outlet Duct Panel Deh Y6463 8 Backflow Damper 10 Deh Y6464 9 Inlet Duct Panel Deh Y6465 10 Cover Outlet Deh Y6466 No Part Description Part No 11 Fan 130pt Deh with 1...

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