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STAND ALONE INSTALLATION

In a free standing installation, the dehumidifier pulls air from the 

installed space and returns the dehumidified air back to that space.
•  Place unit in area with drain access and within 8’ of a dedicated 

outlet.

•  Unit can also be ducted to pull and return to a single living space. 

See 

Figure 8

.

OUTSIDE AIR

TO HOUSE

LIVING SPACE

SUPPLY DUCT

RETURN DUCT

FLOOR DRAIN

DEHUMIDIFIER

115 VAC   

DEDICATED 

CIRCUIT

RELOCATE

DEHUMIDISTAT

TO LIVING SPACE

CONDENSATE HOSE

(TO COMMON DRAIN OR OUTSIDE)

FIGURE 8 – Stand Alone, Ducted

90-1423

The feet can be adjusted to level the unit and/or to accommodate a p-trap. Leveling is required to ensure proper drainage from the dehumidifier.
•  Minimum unit height (feet fully retracted): 2.5”
•  Maximum unit height (feet fully extended): 5.75”

LEVELING 

WIRING

The dehumidifier can be wired to activate the HVAC blower during dehumidification. This is recommended because it offers better circulation 

and balancing of the indoor air conditions. Note: Running the HVAC blower during dehumidification does not affect moisture removal efficiency. 

If the unit is not wired to the HVAC system, air is pulled through the unit, dehumidified, and circulated solely by the dehumidifier blower. 

WIRING TO HVAC SySTEM

DEHUMIDIFIER

CIRCUIT BOARD

TERMINALS

HVAC EQUIPMENT

THERMOSTAT

G

R

C
G

W

Y

Y

W

C

R

G STAT

R HVAC

G HVAC

HVAC WIRING INSTRUCTIONS 

1.   Disconnect power to the HVAC system using disconnect switch or 

fuse/breaker. 

2.   Unplug the dehumidifier.
3.   Remove wiring access panel on the dehumidifier outlet panel. 
4.   Run a 3-wire cable from the dehumidifier to the furnace/air handler. 
5.   Unplug the G-STAT, R-HVAC, & G-HVAC terminals. Make the 

connections shown in 

Figure 9

6.   Plug terminals back into circuit board.
7.   Replace the wiring access panel when wiring is complete.

FIGURE 9 – DEH/HVAC Wiring Instructions

90-1424

4

Summary of Contents for 1730A

Page 1: ...e required to protect from moving parts and electrical components CAUTION 1 Do not use in pool applications 2 If unit has been shipped or stored on its side wait 24 hours before running 3 Do not use s...

Page 2: ...y 5 feet above the floor on an inside wall of the living space Do not locate dehumidistat in the direct path of drafts from open doors and windows Do not install where operation might be affected by l...

Page 3: ...ORATION OFF A COIL AIR IS PULLED FROM MAIN RETURN DUCT DEHUMIDISTAT WITH SET POINT KNOB CONDENSATE HOSE TO COMMON DRAIN OR OUTSIDE Figure 5 Basement Installation 90 1423 MAIN RETURN DUCT DEHUMIDIFIER...

Page 4: ...e wired to activate the HVAC blower during dehumidification This is recommended because it offers better circulation and balancing of the indoor air conditions Note Running the HVAC blower during dehu...

Page 5: ...E terminals from the circuit board remove the two wires and cut off bare leads Once cut the wires may remain in the unit 9 Run a 2 wire cable 18 22AWG from the dehumidifier to the wall mount location...

Page 6: ...ow the wiring access panel Verify the green LED is on The green LED is on when power is applied to the system 4 Rotate the dehumidistat knob fully clockwise to ON position 5 If setup is correct the de...

Page 7: ...ocedure Red LED On Blower compressor not running Open Float Switch If float switch not installed confirm jumper installed at FLOAT SWITCH terminals If float switch installed confirm switch is not open...

Page 8: ...ESEARCH PRODUCTS CORPORATION P O Box 1467 Madison WI 53701 1467 Phone 608 257 8801 Fax 608 257 4357 www aprilairepartners com 10008611 6 09 B2204896A 2009 Research Products Corporation Printed in U S...

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