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Hard Wire Modification

IMPORTANT NOTE:

 Hard wiring instructions are for Model 

HCWHD3-070 only. 

 WARNING

ELECTRICAL SHOCK HAZARD:

 115-volts 

may cause serious injury or death from 

electrical shock. Disconnect and tag electrical 

service before starting installation or field-

service. Leave electrical service disconnected 

until installation or field-service is complete.

ELECTRICAL  SHOCK  HAZARD:

 An 

interrupted or broken ground may cause 

property damage, serious injury or death 

should an electrical fault occur. The cabinet 

must be grounded in accordance with NEC 

ANSI/NFPA 70-2011 or local codes. In 

Canada, refer to Canadian Electrical Code 

CSA C22.1.

FIRE HAZARD:

 Use of improper wire may cause 

serious injury, property damage or death due to fire. 

Do not use aluminum wire for electrical service to the 

dehumidifier. Use only copper wire.

The HCWHD3-070 dehumidifier can be modified for 

applications where hard power to 115VAC is required. An 

electrical disconnect switch can be installed as needed to 

comply with appropriate codes or ordinances. The ON/OFF 

switch on the dehumidifier interrupts the 115VAC service 

to the internal components of the dehumidifier, but does 

not disconnect the power 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 or ordinances that may apply.

Canada Installations:

 Make all electrical connections 

in accordance with the current edition of the Canadian 

Electrical Code CSA C22.1 and any local codes or 

ordinances that may apply.

ELECTRICAL SPECIFICATIONS FOR HARD WIRING

Voltage

110-120 VAC, 60 Hz, 1 phase

Minimum Circuit Capacity 

9A

Maximum Fuse or Circuit 

Breaker Amps

16A

Minimum Wire Size AWG

14

CONTROL LOCATION

The on-board control can be located on the top of the 

dehumidifier or can be relocated to the front of the 

dehumidifier if the control can not be seen/accessed in 

the top orientation. 

To move the control:

1.  Remove the front control panel cover.
2. Remove the filter access door and filter.
3.  Detach the on-board control by removing the four 

(4) screws around the control. 

NOTE:

 Use one hand 

to support the bottom of the on-board control when 

removing.

4.  Keep the control in the unit and relocate to the front 

access hole.

5.  Secure the control with the same four screws used to 

attach the control to the top of the unit.

6.  Secure the control panel cover to the top of the unit.

Figure 4. Control Location

CONTROL

PANEL

COVER

CONTROL

CONTROL

CONTROL

PANEL COVER

FILTER ACCESS DOOR

90-1884

4

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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