Aprilaire 1872 Installation And Operating Manual Download Page 2

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SPECIFICATIONS

MODEL 1872

Weight

113 lbs�

Capacity

AHAM DH-1-2008 80°F, 60% RH Conditions

130 pints per day @ 310 CFM

Power

115 VAC, Single Phase, 60Hz

8�3A operating current

Dehumidifier Inlet Air Conditions

Dehumidification: 50°F – 104°F, 40°F 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)

0�0

310

0�2

270

0�4

225

0�6

175

0.7"w.c. is maximum design external static pressure.

REMOVE SHIPPING BRACKET

IMPORTANT:

Cut the strap securing the compressor shipping

support bracket and remove the strap, shipping bracket screws,
and bracket� See

FIGURE 1

�

CLIP OFF

PLASTIC

STRAP

REMOVE SCREWS (2)

DISCARD SHIPPING BRACKET

REINSTALL SCREWS (2)

90-2013

FIGURE 1

– REMOVE SHIPPING BRACKET

Summary of Contents for 1872

Page 1: ...tenance 3 Do not use in pool applications Pool chemicals can damage the dehumidifier 4 Do not use solvents or cleaners on or near the circuit board Chemicals can damage circuit board components 5 Wait 24 hours before running the unit if it was not shipped or stored in the upright position 6 Do not use dehumidification to prevent window condensation in the winter To address window condensation use ...

Page 2: ...F 0 RH 99 RH non condensing Filter MERV 8 washable Airflow EXTERNAL STATIC PRESSURE w c AIRFLOW CFM 0 0 310 0 2 270 0 4 225 0 6 175 0 7 w c is maximum design external static pressure REMOVE SHIPPING BRACKET IMPORTANT Cut the strap securing the compressor shipping support bracket and remove the strap shipping bracket screws and bracket See FIGURE 1 CLIP OFF PLASTIC STRAP REMOVE SCREWS 2 DISCARD SHI...

Page 3: ...the slip fit connection A level surface is required to ensure proper drainage from the dehumidifier Always install the dehumidifier in a condensate pan when locating in or above a finished space Adhere to local codes regarding draining of the condensate pan CONDENSATE PUMP AND FLOAT SWITCH If a condensate pump is needed install it in the condensate pan if installed Install a condensate overflow sa...

Page 4: ... for an extended period when first installed Your dehumidifier is equipped with two features that protect against unwanted energy consumption Defrost is a normal operating mode that helps to prevent significant ice formation on the refrigeration system coil The dehumidifier display will show DEFROSTING when operating in this mode This mode can occur when there is not enough air moving through the ...

Page 5: ...warm water and a mild detergent solution 5 Shake off the excess water from the filter 6 Replace the filter making sure the filter is secured in both the top and bottom filter rails 7 Replace the filter access door 8 Turn the ON OFF switch ON 9 Press the and buttons simultaneously for 3 seconds to clear the service message CHECK THE DRAIN The drain should be checked annually to ensure there are no ...

Page 6: ... 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 bo...

Page 7: ...ted to the supply side of the HVAC system Use a minimum of 12 of flex duct at the dehumidifier inlet and outlet to prevent vibration noise transmission When ducting return to return preferred the dehumidifier must be wired to turn on the HVAC fan when operating When ducting return to supply allow adequate space before the first branch duct to ensure the warm dehumidified air is thoroughly mixed wi...

Page 8: ...is not ducted to the HVAC system REQUIRED COMPONENTS 10 Ductwork Grilles with 10 Duct Collars DEHUMIDIFIER DEHUMIDIFIED AIR IS SUPPLIED TO DUCTED SPACE AIR IS PULLED FROM DUCTED SPACE 10 MIN GRILLE WITH 10 DUCT COLLAR 2 PLACES DEHUMIDIFIED SPACE 90 2026 FIGURE 11 STAND ALONE DUCTED 8 ...

Page 9: ...ower board Terminal should be fully seated on the power board pins 2 Remove the side access panel and verify that the sensor is secured to the suction line 3 If the sensor is connected and secured to the refrigeration line proceed to the next step 4 Reset the fault by cycling power to the dehumidifier 5 Turn the humidity setting down below room home humidity level to make a dehumidification call 6...

Page 10: ...nstalled on the outlet side of the dehumidifier Check if backflow damper is blocked or stuck and remove obstruction Dehumidifier blower is running but compressor is not Float switch open If float switch installed check connections at control board and empty condensate pan If no float switch installed check that the jumper is installed at the float switch terminals on the control board Coil frostin...

Page 11: ...Deh 5449 8 Backflow Damper 10 Deh 5450 9 Inlet Duct Panel AA Deh 5451 10 Cover Outlet AA Deh 5452 No Part Description Part No 11 Fan 130pt Deh with 10MFD Capacitor 5572 12 Wire Harness Power Deh 5454 13 Sensor Low Temperature Deh 5455 14 Sensor High Temperature Deh 5456 15 Capacitor 50MFD 370VAC 5594 16 Capacitor 10MFD 250VAC 5573 17 RH Sensor Deh 5460 18 Drain Tube Fitting 5665 19 Compressor Over...

Page 12: ...ULTING FROM ANY BREACH OF THE AFORESAID IMPLIED WARRANTIES OR THE ABOVE LIMITED WARRANTY IS EXPRESSLY EXCLUDED THIS LIMITED WARRANTY IS VOID IF DEFECT S RESULT FROM FAILURE TO HAVE THIS UNIT INSTALLED BY A QUALIFIED HEATING AND AIR CONDITIONING CONTRACTOR IF THE LIMITED WARRANTY IS VOID DUE TO FAILURE TO USE A QUALIFIED CONTRACTOR ALL DISCLAIMERS OF IMPLIED WARRANTIES SHALL BE EFFECTIVE UPON INSTA...

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