AlorAir Sentinel HD55 Installation & Operations Manual

Warranty Registration

Congratulations on purchasing a new Sentinel Dehumidifier. Your new dehumidifier comes with an extensive warranty plan. To register, simply fill out and return the warranty form provided in the dehumidifier box. Be sure to note your dehumidifier serial number as you will need it for registration.

Safety Notes

• The Sentinel Series Dehumidifier must always be connected using a grounded electrical connection. If non-grounded wiring is used, all liability reverts to the owner and the warranty is voided.
• Sentinel Dehumidifiers should only be maintained and repaired by a qualified technician.
• Sentinel Dehumidifiers are intended for operation when oriented with the unit sitting on its feet and level. Operating the unit in any other orientation could allow water to flood electrical components.
• Always unplug the dehumidifier before moving.
• If water has flooded the dehumidifier, it should be opened and allowed to dry thoroughly before reconnecting to electrical power and restarting.
• For proper operation, neither the inlet nor discharge should be positioned against a wall. The inlet requires a minimum of 12 inches clearance and the discharge requires a minimum of 36 inches clearance.
• The best option for proper diffusion of air throughout the room is to have the discharge blowing away from a wall and the inlet pulling air in parallel to a wall.
• Do not insert fingers or any object into the inlet or discharge.
• All work on the dehumidifier should be done with the unit "off" and unplugged.
• Do not use water to clean the exterior of the machine. To clean the unit, unplug from power, then use a damp cloth to wipe the exterior.
• Do not stand on the machine or use it as a device to hang clothes.

Identification

For future reference, write down the model, serial number, and date of purchase for your dehumidifier. The data label on the side of your unit has the key characteristics of your specific machine.

Model Number: Sentinel HD55

Serial Number:

Date of Purchase:

For additional questions concerning your dehumidifier, contact your installing contractor or e-mail: sales@alorair.com.

Electrical Supply

Power Supply: 115 V, 60 Hz AC, Single Phase

Outlet Requirement: 3-Prong, GFI

Circuit Protector: 15 Amp

WARNING: 240 Volts AC may cause serious injury from electric shock. To reduce risk of injury:

1. Disconnect electrical power before servicing.
2. Only plug unit into a grounded electrical circuit.
3. Do not use an extension cord.
4. Do not use a plug adapter.

Principle of Operation

The Sentinel Series Dehumidifier utilizes its integral humidistat to monitor the conditioned space. When the relative humidity goes above the selected set point, the dehumidifier will energize. Air is drawn across an evaporator coil, which is cooler than the dew point of air, causing moisture to condense out. The air is then reheated through the condenser coil and distributed back into the room.

Installation

The area to be controlled should be sealed with a vapor barrier. If the unit is installed in a crawlspace, all vents should be sealed.

WARNING: Do not install your dehumidifier in a corrosive environment. Some liquid vapor barriers dry via "solvent evaporation". Always make sure that the barrier is completely dry and the area is thoroughly ventilated before installing the dehumidifier.

Step #1: Place dehumidifier on a level surface.

Do not place directly on the vapor barrier. Use blocks or pavers to create a level surface. If the unit is handled in such a manner that the compressor did not remain in the upright position, it is necessary to place it on a level surface and wait a minimum of 2 hours before turning the unit "on".

NOTE: Sentinel HD55 Dehumidifiers cannot sit directly on the floor unless the unit is feeding directly into a sump pump next to it. Elevation is required to allow gravity flow of condensate water drain.

Step #2: Set Up Drain Line

The drain line should be routed to a suitable drain on the outside. It must flow down to a drain without any loops, dips, or valleys.

Recommended Drain Option - Transition to PVC Pipe

1. Cut a piece of 3/4" OD PVC that is approximately 6" long.
2. Insert PVC into a 3/4" elbow, then attach to a 3/4" OD length of PVC to drain. (Note: Keep the length of PVC drain pipe to a minimum).
3. Insert the open end of the tubing into the 3/4" pipe so that it does not extend into the elbow fitting. For proper flow, a minimum downward slope of 1" per 10' run is required. (Note: If a proper downward angle is not possible, then it is recommended to use a Sentinel HDi90 which includes an integrated pump. Alternatively, an external condensate pump can be used).
4. Support the PVC tubing so that it maintains a smooth downward flow to the drain.

5. Always test the drain before leaving the installation area.

Step #3: Plug unit into a 15 amp grounded circuit.

Key Functions

1. Power Key (⏻)

Use this button to turn the dehumidifier on and off. Press once to turn the machine on. You will hear 2 beeps and the power light will illuminate green. Press the power button a second time and you will hear one beep as the machine shuts down. Note that there is a one-minute fan delay on shut down.

2. Arrow Buttons (▲ / ▼)

Use the up and down arrow buttons to set the desired humidity setpoint on the display screen. The setpoint can be any number between 36-90%. Creating a setpoint means that when the indoor humidity is lower than the set point, the machine will stop automatically. Conversely, when the indoor humidity is higher than the set level, the unit will operate. NOTE: The humidity levels displayed are approximate only (+/-5%).

3. Continuous Mode

To switch into continuous mode, use the down arrow to set the humidity below 36%. The "Cont." light should illuminate green on the display board to indicate that you have successfully switched into continuous mode. The display screen will show "CO". When set to continuous, the dehumidifier will run constantly, regardless of the humidity level. To stop the machine, turn the unit off or switch back to normal humidistat operation. If you would like to switch back to normal humidistat operation, simply move the setpoint above 36%.

4. Central Control

This mode is not applicable on the Sentinel HD55.

5. Auxillary Terminals A5/A6

The A5/A6 on the terminal strip can be used as a water level warning switch for external condensate pumps. If an external pump is connected, the pump must have a self-contained power supply and a water level signal line.

Indicator Lights

1. Humidity Display Screen (88)

The display screen has two functions: When the unit is powered on, it shows the humidity of the space. While setting the desired humidity level, the screen will show the set humidity. After a brief delay, the display will revert to the current humidity level.

2. Power Indicator Light (●)

This light indicates that the unit is properly powered on and ready to operate. Always make sure the unit is "off" prior to performing any service.

3. Continuous Mode/AutoDefrost Light (●)

When this light illuminates green, it indicates that the dehumidifier is set to continuous operation mode. When the light glows red, it means the unit is in auto defrost mode and clearing the evaporator coil of any ice buildup.

4. Compressor Light (●)

When the compressor light glows red, it indicates the compressor has been initiated but is currently warming up. Once the compressor light switches to green, it indicates the compressor is in working status.

Remote Control Instructions

Sentinel Dehumidifiers can be controlled using an optional remote accessory. The Sentinel Remote Control connects to your Sentinel Series Dehumidifier via a 25' CAT 5 cable. The remote control contains an integrated sensor which gives you multiple options for remotely controlling your unit, in addition to monitoring the conditions surrounding the dehumidifier.

One application for the remote control is to install the dehumidifier in one room with the conditioned air ducted into a second room that contains the remote. For example, the dehumidifier could be installed in a laundry room and ducted into a living room. The remote would then be mounted in the living room so the remote sensor can control the humidity and provide easy controls for the user.

Another useful application for the remote control is if the dehumidifier is in an area that's difficult to access on a regular basis. For instance, if your dehumidifier is installed in your crawl space, the remote could be mounted in your living space or garage. This provides an easy way to monitor the dehumidifier.

1. On/Off (Power) Button (⏻)

Press the on/off button and the machine will start running (one beep). Press the button again to turn the machine off.

2. Up Button (▲) / Down Button (▼)

Use the Up and Down arrow buttons to adjust the humidity level.

3. Mode (M)

Use the Mode button to switch between dehumidification and a ducted application.

• The ◦ symbol on the display board indicates the sensor on the remote control is being utilized.
• The ◦ symbol on the display board indicates the sensor on the dehumidifier is being utilized.

4. Temperature (T)

Press the temperature button to display the current temperature on the screen. Press the button again to turn off the display.

5. Continuous (C)

Press this button to switch the unit into continuous mode. "Cont." will appear on the display to indicate continuous mode.

6. Drain Pump (P)

Use this button if the unit will not be in use for an extended period of time. Pressing the drain pump button will remove water from the pump reservoir, so the unit can be safely moved or stored. THIS FUNCTION IS ONLY AVAILABLE ON THE Sentinel HDi90 MODEL.

NOTE: Symbols indicated above will only appear when the dehumidifier is powered on.

Operating Instructions

1. Start the Machine

Press the power key to turn the machine on.

2. Adjust the Settings

Use the up and down arrow keys to adjust your desired setpoint (typically 50-55%).

3. Stop the Machine

Press the power key again and the machine will stop. Note the fan will continue to operate for 1 minute after the unit has turned off. NOTE: Do not disconnect the power cord to force the unit to stop. Always use the power button.

4. Water Drainage

During normal operation, the Sentinel HD55 will automatically drain by the force of gravity. If you want to move or store your machine, wait at least 10 minutes to allow the machine to completely defrost, then lean the unit gently towards the drain to ensure that it is completely drained.

Sentinel HD55 Diagram

Front View

The front view shows the handles, circuit cover, drain connection, power cord, remote connection, and control panel.

Back View

The back view shows the outlet end cap, MERV 8 Filter, and humidity sensor.

Maintenance

WARNING: Always unplug the unit before doing any maintenance.

Cleaning the machine body

Use a soft damp cloth to clean the exterior of the unit. Do not use any soap or solvents.

Cleaning the filter

1. Unplug the unit.
2. Slide out the filter.
3. Clean the filter mesh by vacuuming or washing with warm water (no soap or solvents).
4. Ensure the filter is completely dry before restarting the unit.

Coil Maintenance

• Once per year, clean the coils with an approved coil cleaner.
• Coil cleaner should be a self-rinsing, foaming cleaner such as WEB® Coil Cleaner.

Dehumidifier Storage

If the unit will be stored for an extended period of time, complete the following steps:

1. Turn off the unit and allow it to dry.
2. Wrap and secure the power cord.
3. Cover the filter mesh.
4. Store in a clean, dry space.

Ducted Applications

Ducting the dehumidifier allows the unit to be in one room while conditioning an adjacent room. The supply grille is designed for 6" flex ducting. Secure the ducting with a tie wrap. The supply ducting can be screwed into an adapter if necessary.

Ducting Installation

Maximum length for ducting = 6 feet.

Note: The supply duct adapter is standard on all units.

Removing Supply Duct Adapter

To remove the adapter, place your hand at the bottom of the adapter and use your fingers to pull out and down on the base of the adapter. This will lift the hooks out of the cover holes.

Installing Supply Duct Adapter

To install the adapter, line it up with the holes on the side of the unit and push up from the base of the adapter.

Flex Duct Installation

Rotate the flex duct counterclockwise.

Flex Duct Removal

Rotate the flex duct clockwise.

Troubleshooting

Sentinel HD55 Spare Parts

All Sentinel Models - Parts

Sentinel HD55 - Parts

Sentinel HD55 - Filters

Limited Warranty

This limited warranty starts from the date of purchase. Alorair Solutions Inc. warrants to the original purchaser that this ALORAIR product is free from manufacturing defects in material or workmanship for the limited warranty period of:

• Six (6) Months parts and labor. This includes the shipment charges for replacement parts or unit.
• One (1) year parts and labor. This does not include the shipment charge to send the defective product back to be repaired or replaced.
• Three (3) years parts and labor on Refrigeration System ONLY (Compressor, Condenser, and evaporator). Transportation cost, not included.
• Five (5) years parts on Refrigeration System ONLY (Compressor, Condenser, and evaporator). Transportation cost, not included.

This limited warranty is valid only on products purchased from the manufacturer or ALORAIR authorized dealer and operated, installed, and maintained according to the instructions included in this user guide or furnished with the product. Alorair Solutions Inc. will not provide in-home service during or after the warranty period. You may be responsible for the shipping charge to bring the product to the manufacturer for service.

To receive warranty service, the purchaser must contact ALORAIR at 888-990-7469 or support@alorair.com. A proof of purchase or order number is required to receive warranty service. During the applicable warranty period, a product will be repaired or replaced at the sole option of ALORAIR.

Limited Warranty Exclusions

This limited warranty covers manufacturing defects in materials or workmanship encountered in normal household, commercial or noncommercial use of this product and shall not cover the following:

• Damage occurs in uses for which this product was not intended for.
• Damage caused by unauthorized modification or alteration of the product.
• Cosmetic damage including scratches, dents, chips, and other damage to the product's finishes.
• Damage caused by abuse, misuse, pest infestation, accident, fire, floods, or other acts of nature.
• Damage caused by incorrect electrical line current, voltage, fluctuations, and surges.
• Damage caused by failure to perform proper maintenance of the product.

The use of this product in a SPA or a room with an OUTDOOR POOL invalidates or voids the limited warranty.