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Model 1830 | Model 1850 & 1850W | |||
Weight | 67 lbs. | 70 lbs. | ||
Capacity AHAM DH-1-2008 80°F, 60% RH Conditions | 70 pints per day @ 160 CFM | 95 pints per day @ 265 CFM | ||
Power 115 VAC, Single Phase, 60Hz | 6.3A operating current | 8A 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) | External Static Pressure ("w.c.) | Airflow (CFM) |
0.0 | 160 | 0.0 | 265 | |
0.2 | 120 | 0.2 | 230 | |
0.4* | 70 | 0.4 | 200 | |
0.6* | 165 |
*Maximum design external static pressure.
Cut the strap securing the compressor shipping support bracket and remove the strap and shipping bracket. See Figure 1.
Figure 1 – Remove Shipping Bracket
STANDARD BASEMENT AND ATTIC INSTALLATIONS (FULLY DUCTED)
Figure 2 – Fully Ducted Installations
CLOSET INSTALLATIONS
Use the screws provided in the parts bag to attach the duct collars if desired or required based on recommendations below:
Figure 3 – Closet Installations
CRAWL SPACE, SEALED ATTICS OR BASEMENT INSTALLATIONS
If dehumidifying the space in which the dehumidifier is installed, the duct collars do not need to be installed. Leave the outlet cover on top of the unit. See Figure 4.
Figure 4 – Non-ducted Installations
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.
Figure 5 – Control Location
To move the control:
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.
Use of an undersized circuit breaker may cause property damage and/or the need for mold remediation service. See Specifications for wire and circuit breaker sizing.
The Model 1830 dehumidifier can be modified for applications where hard wire power to 115VAC is required; the Model 1850W must be hard wired. 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.
Model 1830 | Model 1850W | |
Voltage | 110-120 VAC, 60 Hz, 1 phase | 110-120 VAC, 60 Hz, 1 phase |
Minimum Circuit Capacity | 9A | 12A |
Maximum Fuse or Circuit Breaker Amps | 16A | 20A |
Minimum Wire Size AWG | 14 | 14 |
Figure 6 – Electrical Service Box Location
Figure 7 – Hard Wire to 115 VAC Service
FIGURE 8 – Filter Access Clearance
The drain outlet on the dehumidifier can be hard piped using 3/4" nominal drain tubing or the provided fittings and 1/2" clear PVC tubing can be used to drain the dehumidifier. Always maintain a constant downward slope from the dehumidifier to the drain and do not allow soft tubing to curl up which may result in air lock.
The feet can be adjusted to level the unit, and if required, to accommodate drain fittings and a secondary condensate pan. Leveling is required to ensure proper drainage from the dehumidifier. See Figure 9.
FIGURE 9 – Level the Unit
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. If a condensate 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 Switch terminals on the control and wire the float switch to the dehumidifier as shown in Figure 10. Overflow safety switches on condensate pumps can be wired to the Float Switch terminals in a similar fashion.
FIGURE 10 – Float Switch Wiring
The Preferred Installation is to duct the dehumidifier to pull air from and return dehumidified air to the HVAC return duct. This installation will ensure warm, dehumidified air is thoroughly mixed with the HVAC system air before being discharged into the living space. Alternatively, the dehumidifier can be ducted to discharge to the supply duct, but the external static pressure of the HVAC system must not exceed 0.4"w.c. for the 1830 and 0.6"w.c. for the 1850/1850W.
Required Component
10" Ductwork
FIGURE 11 – Preferred Basement Installation
FIGURE 12 – Alternate Basement Installation
FIGURE 13 – Preferred Attic Installation
FIGURE 14 – Alternate Attic Installation
Ducting Notes:
The dehumidifier in these applications is typically installed under or next to the HVAC equipment. In both types of installation, the dehumidifier inlet is not ducted and pulls from the living space through a grille or louvers in the HVAC closet door. The Preferred Installation is to locate the dehumidifier under the HVAC equipment and supply dehumidified air through the alternate outlet on the top of the unit directly to the HVAC return. NOTE: The dehumidifier must be wired to activate the HVAC fan during dehumidifier operation in this installation. In the Alternate Installation the dehumidifier is located next to the HVAC equipment and ducted to the HVAC supply duct using the outlet on the top of the unit. The supply side external static pressure of the HVAC system must not exceed 0.4"w.c. for the 1830 and 0.6"w.c. for the 1850/1850W.
When installing the dehumidifier as part of a combustion type furnace (gas, oil, propane, etc.) HVAC system located in a closet, duct or locate the dehumidifier inlet and outlet and seal as needed to separate the circulation air from the combustion and ventilation air. Follow all local and national building and safety codes when installing or modifying any HVAC system.
Optional Component
10" Ductwork
FIGURE 15 – Preferred Closet Installation
FIGURE 16 – Alternate Closet Installation
In this installation the dehumidifier is not ducted to the HVAC system and is used to dehumidify a specific area. This installation is typically in basements or crawl spaces.
Optional Components
10" Ductwork
Grilles with 10" Duct Collars
FIGURE 17 – Stand Alone Ducted
In this installation the dehumidifier controls the humidity in two separate zones, a Primary and Secondary Zone. The dehumidifier will dehumidify the Primary Zone as the first priority, and will switch to the Secondary Zone after the dehumidification needs of the Primary Zone have been satisfied.
Normally Closed dampers must be installed in the ducts serving the Primary Zone and Normally Open dampers installed in the ducts serving the Secondary Zone.
Required Components
10" Ductwork and Fittings
Grilles with 10" Duct Collars
Drain Line
2 – Aprilaire Model 6510, 10" Normally Closed Damper
2 – Aprilaire Model 6610, 10" Normally Open Damper
24 VAC Transformer (40VA min.) for Dampers
NOTE: 5442 Basement Kit includes 2 – 6510 Dampers, 2 - 6610 Dampers and a 24VAC (40VA) transformer
FIGURE 18 – Whole-Home Primary Zone Installation
FIGURE 19 – Whole-Home Secondary Zone Installation
NOTE: Use 18-22 AWG wire for control wiring.
Used as an external control, the Model 76 is mounted in the space that is to be dehumidified. When the dehumidifier is powered, the display on the dehumidifier control will show "EXTERNAL" to indicate that an external control is being used. External controls are recommended when the dehumidifier is installed in an attic and is ducted to the HVAC system.
The Model 76 uses a normally open (NO), dry contact (i.e. not a triac or other semiconductor) relay to complete the circuit between the DH terminals of the dehumidifier control. If using other controls such as a thermostat with dehumidification outputs, ensure the output is a dry contact type and set the NO/NC switch on the dehumidifier control (see Figure 20) to correspond with the control being used. The Aprilaire Model 8620 Thermostat or Model 8910 Home Comfort Control are recommended alternate controls and both use normally open contacts.
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 for details).
FIGURE 20 – Model 76 External Control Wiring
Used as crawl space or sealed attic control (or remote control), the Model 76 is mounted in the living space while the dehumidifier is located in the area to be dehumidified. When the dehumidifier is powered, the display on the dehumidifier control will show "REMOTE" to indicate that a remote control is being used. The RH shown on the Model 76 is the RH measured at the dehumidifier.
Remote control is typically used for crawl space or sealed attic applications, but is also recommended when the dehumidifier and the space being dehumidified are inconvenient or difficult for the homeowner to access. Examples of this type of application include basements that may be inconvenient to access or storage areas.
FIGURE 21 – Model 76 Crawl Space/Sealed Attic (Remote) Wiring
NOTE: Use 18-22 AWG wire for wiring to HVAC system and zone dampers.
Pull off the wiring access cover near the dehumidifier control to access the wiring terminals. Snap the wiring access cover back into place after completing all wiring.
When the dehumidifier is ducted to the HVAC system, it is recommended that it also be wired to the HVAC system as shown in Figure 22. If ducted to the HVAC system in return to return configuration, the dehumidifier must be 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 ensures the warm dry air is mixed with room air before being discharged to the home.
FIGURE 22 – Wiring to HVAC System
OPTIONAL W & Y WIRING
Wire the W and/or Y terminal to the HVAC system when using the ventilation feature of the dehumidifier (see VENTILATION).
Wire the dehumidifier Y terminal to the HVAC system if it is desired to disable the dehumidifier compressor from operating when the air conditioning is running. See DEH w/AC in SYSTEM SET-UP for additional set up steps required to access this feature.
FIGURE 23 – Two Zone Wiring On-Board Control
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.
If not installing in a crawl space or sealed attic with Model 76 remote control, press MODE to go to VENT screen selections
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.
If not using the dehumidifier to bring in outdoor air, press MODE to go to ZONE screen selections.
If using the dehumidifier for ventilation, Enable and press MODE to select TIMED or AUTO.
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.
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.
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 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.
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.
If installing the dehumidifier in a single zone application, select DISABLED and press MODE to go to the EXTERNAL control screen selections.
If installing the dehumidifier in a two-zone application, use the UP or DOWN arrows to select ENABLED and press MODE to go to the EXTERNAL control screen selections.
If using the dehumidifier on-board control select DISABLED and press MODE to go to the dehumidificaiton with air conditioning (DEH W/AC) screen selections.
If using a Model 76, Model 8910, or Model 8620 as an external control or other thirdparty external control, such as a thermostat with dehumidifier outputs, use the UP or DOWN arrows to select ENABLED and press MODE to go to the dehumidification with air conditioning (DEH W/AC) screen selections.
To allow dehumidification during active air conditioning, select ENABLED and press MODE.
To disable dehumidification when the air conditioning is on, select DISABLED and Press MODE.
An offset can be applied to the on-board humidity humidity reading to avoid discrepancies with other humidity measuring devices in the home. Use the UP/ DOWN arrows to select an offset from -5% to 5%. Press MODE to exit the installer set-up screens.
If everything is properly wired, the dehumidifier and all of the wired components will turn on and off during Installer Test Mode to demonstrate that all are properly operating. Installer Test Mode lasts for four (4) minutes. If the ON/OFF button is pressed during test mode, the dehumidifier will exit Installer Test Mode and return to the OFF screen.
If the dehumidifier is not already OFF, press the ON/OFF button to turn it off.
Press and hold the ON/OFF button and MODE buttons for 3 seconds. The measured humidity, AIR SAMPLING and 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.
After three (3) minutes the dehumidifier compressor will turn on and DEHUMIDIFYING will replace AIR SAMPLING on the control screen.
After one minute of compressor operation, all outputs will turn off and DONE will blink for 3 seconds and then return to the OFF screen.
If the dehumidifier has been set up for ventilation, VENTILATING will appear on the display throughout Installer Test Mode, and the ventilation damper will be energized.
If the dehumidifier has been set up for zoning, PRIMARY ZONE will show on the display for the first minute of dehumidifier blower operation. After one minute, SECONDARY ZONE will show on the display and the zone dampers will de-energize.
The dehumidifier can activate a normally closed damper to bring in outdoor air through a fresh air intake duct. This feature can not be used when a Model 76 has been installed in a Remote Control application, and is not recommended for two-zone installations.
Required Components
Aprilaire Model 6506, Normally Closed Damper
6" Insulated Duct for Fresh Air Intake Duct
24 VAC Transformer (10VA min.) for Ventilation Damper
Intake Hood
18-22 AWG Wire
Optional Components
8052 Outdoor Temperature Sensor
FIGURE 24 – Single Zone, On-Board Control Ventilation Installation
FIGURE 25 – Single Zone, External Control Ventilation Installation
FIGURE 26 – Ventilation Wiring
The dehumidifier can ventilate in four modes.
Vent-Timed: Ventilation occurs based only on time setting; no temperature restrictions.
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.
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 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.
The Outdoor Temperature Sensor should be installed outside in a shaded location, or in the outdoor air intake duct.
FIGURE 27 – ODT Mounted Outside
FIGURE 28 – ODT Mounted in Intake Duct
CALCULATING AIRFLOW REQUIREMENT
TABLE 1 – CFM Required | |||||
House Sq. Ft. | Number of Bedrooms | ||||
2 | 3 | 4 | 5 | 6 | |
1000 | 35 | 40 | 50 | ||
1500 | 40 | 45 | 55 | 60 | 70 |
2000 | 45 | 50 | 60 | 65 | 75 |
2500 | 50 | 55 | 65 | 70 | 80 |
3000 | 55 | 60 | 70 | 75 | 85 |
3500 | 75 | 80 | 90 |
DETERMINE FRESH AIR DELIVERY RATE
TABLE 2 – CFM Delivered | ||||||||||||
Duct Length | Negative Static Pressure ("w.c.) as Measured for Return Duct or Plenum | |||||||||||
0.05 | 0.1 | 0.15 | 0.2 | 0.25 | 0.3 | |||||||
Flex | Pipe | Flex | Pipe | Flex | Pipe | Flex | Pipe | Flex | Pipe | Flex | Pipe | |
10 ft. | 60 | 65 | 85 | 90 | 105 | 110 | 120 | 125 | 135 | 140 | 150 | 160 |
20 ft. | 55 | 60 | 80 | 85 | 100 | 105 | 115 | 120 | 130 | 135 | 140 | 150 |
30 ft. | 50 | 55 | 75 | 80 | 95 | 100 | 110 | 115 | 125 | 130 | 130 | 140 |
NOTE: For the table above, 6" flex duct is laid loose with two, wide 90° bends and a fully opened damper. Rigid pipe values are based on 6" duct, two 90° elbows, and a fully open damper. In both cases, the air intake is through a metal vent hood with inlet screen. Airflow may need to be adjusted up or down for variations in duct work.
TABLE 3 – Cycle Time Setting (minutes) for Airflow Delivered vs. Airflow Required for 1 hour Cycle | |||||||||
CFM Delivered | CFM Required | ||||||||
20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | |
60 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
80 | 15 | 25 | 30 | 40 | 45 | 55 | 60 | 70 | 75 |
100 | 15 | 20 | 25 | 30 | 35 | 40 | 50 | 55 | 60 |
120 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 |
140 | 10 | 15 | 15 | 20 | 25 | 30 | 35 | 40 | 45 |
160 | 10 | 10 | 15 | 20 | 25 | 25 | 30 | 35 | 40 |
With the dehumidifier power switch on, press the ON/OFF button to turn the dehumidifier off.
Press and hold the MODE button for 3 seconds to access the installer settings menu. Press and release the MODE button repeatedly until the VENT DISABLED screen appears.
Press the UP or DOWN button to ENABLE ventilation, then press the MODE button to set Timed or Auto ventilation.
Press the UP or DOWN to toggle between VENT TIMED, VENT AUTO-B, VENT AUTO-C and VENT AUTO-D. Press the MODE button to select the desired ventilation method and adjust the ventilation time.
Press the UP or DOWN button to set the desired amount of ventilation time per hour from 0 to 60 minutes.
To complete, press the MODE button repeatedly until DONE appears on the display.
When wired as shown in Figure 26, the ventilation damper will open whenever there is an HVAC heating (W), cooling (Y) or fan (Gs) call, allowing fresh air to be brought in when the HVAC blower is running (see VENTILATION WITH AN EXTERNAL CONTROL section below for exceptions). The ventilation damper will also open if the dehumidifier is operating. "VENTILATING" will show on the dehumidifier control when the dehumidifier is actively ventilating. When the HVAC call ends, the dehumidifier stops, or after the set amount of ventilation time has been met, the ventilation damper will be closed.
If the set amount of ventilation time has not been met before the end of the one-hour cycle, the dehumidifier will turn on the ventilation damper along with the HVAC blower to ensure the desired ventilation time is satisfied.
If the dehumidifier has been set up to operate ventilation with outdoor temperature restrictions then ventilation will be limited as described.
DEHUMIDIFYING THE FRESH AIR
When the dehumidifier is set up for single zone and there is no external control installed, the dehumidifier will turn on its blower and measure the RH of the air entering the dehumidifier during ventilation when ducted as shown in Figure 24. If the relative humidity of the air entering the dehumidifier is higher than the setting, the dehumidifier compressor will turn to remove moisture.
VENTILATION WITH AN EXTERNAL CONTROL
When an external control is installed the dehumidifier will open the ventilation damper only when there is a cooling call (Y) or when the dehumidifier is operating, unless the ventilation need has not been met. If the set amount of ventilation time has not been met before the end of the one-hour cycle, the dehumidifier will turn on the ventilation damper along with the HVAC blower to ensure the desired ventilation time is satisfied.
ADJUSTING VENTILATION TIME AFTER INITIAL SET UP
Technical Support is available Monday through Friday, 7:00 a.m. to 5:00 p.m. CST, at (800) 334-6011. Use the guides on the following pages to identify and correct system faults. Contact Technical Support before replacing the unit or any components and for additional troubleshooting.
When an error occurs, the Diagnostic Code along with SERVICE REQUIRED will be displayed on the control screen.
TABLE 4 – Diagnostic Codes | |||||||||||||||||
Diagnostic Code | Failure Mode | Action | Reset | ||||||||||||||
E1 | Internal Humidity or Temperature Sensor Open or Shorted |
| Cycle Power | ||||||||||||||
E2 | High Refrigeration Pressure |
| Cycle Power | ||||||||||||||
E3 | Model 76 Remote Control Communication Loss |
| Self-Correcting | ||||||||||||||
E4 | Insufficient Capacity |
| Cycle Power | ||||||||||||||
E5 | High Temperature Thermistor Failure |
| Cycle Power | ||||||||||||||
E6 | Low Temperature Thermistor Failure |
| Cycle Power | ||||||||||||||
E7 | Float Switch Open |
| Self-Correcting | ||||||||||||||
E8 | Inlet Air Temperature Out of 50°F – 104°F or dew point below 40°F |
| Self-Correcting | ||||||||||||||
E9 | Outdoor Temperature Sensor Open or Shorted |
| Self-Correcting |
TABLE 5 – Troubleshooting Guide | |||||||||||||||
Symptom | Possible Reason | Troubleshooting Procedure | |||||||||||||
Dehumidifier does not turn on/run. | No power to unit. |
| |||||||||||||
Dehumidifier blower is running but with little or no airflow. | Pressure drop across dehumidifier is higher than 0.4"w.c. for Model 1830 or 0.6"w.c. for Model 1850/1850W. |
| |||||||||||||
Dehumidifier blower is running but compressor is not. | Float switch open. |
| |||||||||||||
Coil frosting. |
| ||||||||||||||
Inlet air temperature is outside of the 50°F – 104°F range or the dew point is below 40°F and there is a demand for dehumidification. |
| ||||||||||||||
When zoned, the dehumidifier damper does not open in INSTALLER TEST mode. | Incorrect damper wiring or bad connection. |
| |||||||||||||
The ventilation damper does not open when the HVAC fan is active. | Cycle time has been met. |
| |||||||||||||
ODT error or outdoor air outside of ODT range. |
| ||||||||||||||
Dehumidifier is not draining properly. | Drain line blocked or unit not level. |
| |||||||||||||
The HVAC fan turns on unexpectedly. | Dehumidifier is sampling or ventilation in progress. |
| |||||||||||||
Dehumidifier is producing hot air. | Normal function. |
|
No. | Part Description | Part No. |
1 | Filter, 10" x 12" x 1" EZK | 5443 |
2 | Internal Control Board, Deh | 5444 |
3 | User Interface Assembly, Deh | 5445 |
4 | Wiring Access Door, AA Deh | 5446 |
5 | Hole Cover, UI Ctrl, Deh | 5447 |
6 | Door, Filter Access, AA Deh | 5448 |
7 | Outlet Duct Panel, Deh | 5449 |
8 | Backflow Damper, 10", Deh | 5450 |
9 | Inlet Duct Panel, AA Deh | 5451 |
10 | Cover, Outlet, AA Deh | 5452 |
11 | Fan, 70pt Deh | 5453 |
Fan, 95pt Deh | 5467 | |
12 | Wire Harness, Power, Deh | 5454 |
13 | Sensor, Low Temperature, Deh | 5455 |
14 | Sensor, High Temperature, Deh | 5456 |
15 | Leveling Foot, Deh | 5457 |
16 | Capacitor, 45MFD, 370VAC, 70pt/95pt Deh | 5458 |
17 | Capacitor, 8MFD, 450VAC, 70pt Deh | 5459 |
Capacitor, 12MFD, 450VAC, 95pt Deh | 5468 | |
18 | RH Sensor, Deh | 5460 |
19 | Drain Tube + Fittings | 5461 |
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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