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KNOB  A

COVER  B

BASE PLATE  D

DEHUMIDISTAT  C

ANCHOR  F (x2)

SCREW  E (x2)

BASE PLATE  D

CUT WIRES

4”-6” LENGTH

DEHUMIDISTAT WALL MOUNT INSTALLATION (FIGURE 10)

1.   Gently pull knob (A) from the dehumidistat cover (B). The cover is 

held in place by snap clips. Remove the cover by pulling carefully. 

Do not touch the sensing element on the dehumidistat (C).

2.   Remove 4 screws in base plate (D) and save for attaching the 

provided cover plate in place of the dehumidistat.

3.   Pull dehumidistat off unit until 4”- 6” of wire is outside of unit.
4.   Cut wires and use metal tape to secure leads to inside of unit, 

preventing contact with blower.

5.   Remove the gasket from the base plate. This will be used with the 

insulated cover plate installed in the next step. 

6.   Using the screws removed in Step 2, install the provided insulated 

cover plate with gasket over the dehumidistat opening on the unit.

7.   Remove the wiring access panel on unit outlet panel.
8.   Unplug the REMOTE 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. 

10.  Connect cable at the dehumidifier to the REMOTE terminals. Plug 

terminals into the circuit board and replace wiring access panel. 

See 

Figure 11

11.  Use the dehumidistat base as a template to mark mounting holes 

and wire access location on the wall.

12.  Drill two 3/16” holes at mounting locations and a 3/8” hole at 

desired wire access location.

13.  Pull 2-wire cable from the dehumidifier through the wire access 

opening in the wall.

14.  Strip wire ends coming from the dehumidistat and dehumidifier 

and connect with small, field supplied wire nuts.

15.  Push excess wire and wire nuts through the access hole in the 

wall. Use the supplied screws (E) and wall anchors (F) to attach 

the base plate (with dehumidistat) to the wall using the top 

centered hole and bottom centered slot.

16.  Reassemble dehumidistat cover by snapping in place on base 

plate and press on knob.

FIGURE 10 – Wall Mount

90-1466

FIGURE 11 – Dehumidistat to Unit Wiring

90-1465

5

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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