AlertLabs SENTREE ALF-000008 User manual

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SENTREE
Installation Manual
ALF-000008

SENTREE
Installation Manual

WARNING
RISK OF ELECTRIC SHOCK CAN CAUSE INJURY OR DEATH: DISCONNECT ALL REMOTE ELECTRIC
POWER SUPPLIES BEFORE SERVICING
CAUTION
Installation must be performed by qualied HVAC technicians that are certied by the local Air
Conditioner and Refrigeration Licensing Agency. Good refrigeration practices are expected to
be used.
This Sentree device is intended to be connected to condenser units powered by 240 VAC,
single phase, 60 Hz power and must connect to unused 1/4 inch quick connect terminals on
the line side of the condenser’s contactor.
This Sentree device is intended for use on systems up to 600 psi operating pressure.
This Sentree device is only intended for use on 1–5 ton residential air conditioner units.
There shall be no cutting of wires, rearrangement of existing components in the installed unit,
cutting, drilling or welding in electrical compartments or in other areas where such operations
may damage electrical or refrigerant components and wiring.
This product is not to be used with ammable refrigerants
PRODUCT: Field Installed Kit - HVAC Monitoring system, Model ALF-000008
POWER REQUIREMENTS
Rated voltage 240 VAC, single phase, 60 Hz
Maximum power consumption 12W
REPLACEABLE FUSE
Fuse specications
UL Listed or Recognized Supplemental Circuit Protection
T 5.0 A H 300 VAC
Replace with same type and fuse rating
Example: Bel Fuse Inc, 0ADKC5000-BE
PKG-000027-002
FCC compliance statement at alertlabs.com/FCC.

What’s Included
1 Sentree main housing
2 Cable harness
3Current sensor
4 Power supply / fuse assembly
5 Pressure sensors (×2)
6 Iso-propyl alcohol wipe
7 Foam tape (×3)
8Installation manual
9 Cable bushing
10 Grounding clip
11 Cable ties (×8)
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4
Installation
1
Turn off the Power
Switch the power to the air conditioner to the OFF position.
WARNING: RISK OF ELECTRIC SHOCK CAN CAUSE INJURY OR DEATH: DISCONNECT ALL
REMOTE ELECTRIC POWER SUPPLIES BEFORE SERVICING

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3
Attach power
Remove the service panel from the rear of the A/C unit. Attach the quick disconnect terminals from the Sentree power
supply to unused L1 and L2 1/4″ quick connect terminals on the inlet power / line side of the A/C unit’s contactor. Use
the included alcohol wipe to clean the surface inside the electrical compartment. Peel the adhesive pad on the power
supply and attach it to the clean surface. Clip the current sensor around ONE of either of the supply L1 or L2 mains
cables (coming from the disconnect box located on the house), making sure that the arrow on the inner surface
of the sensor points toward the contactor. Check that the latch on the sensor is closed properly.
2
Attach pressure sensors
Remove the protective caps from the refrigerant service ports. Using an adjustable wrench and protective gloves,
tightly screw the pressure sensors onto the service ports. Make sure the connectors on top of the sensors are
horizontal to prevent water from collecting inside the sensor. Replace the caps onto the servicing end of the
pressure sensors and verify that there are no refrigerant leaks.
NOTE: CLASS 2 WIRING TO BE ROUTED SUCH THAT IT WILL NOT COME INTO CONTACT WITH LINE VOLTAGE WIRING
LKLK

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4
Connection of low voltage power harness (Class 2)
Locate an electrical knock-out or cable pass-through, and pass the power cable from the harness ( ) into the
electrical compartment. Plug the output leads of the power supply and current sensor leads into the connectors on
the harness. Attach the included grounding clip onto an exposed sheet metal edge in the electrical compartment.
Connect the end of the harness green grounding wire (with the 1/4” female quick connect terminal) onto the mating
spade that is integral the grounding clip until it clicks. Secure the power cable in the knock-out using the included
cable bushing or cable tie.
5
Connect pressure sensors
Connect the red cable on the harness to the liquid line pressure sensor. Connect the blue cable on the harness to
the vapor line pressure sensor. Arrange both pressure sensor cables in a drip loop.

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6
Secure temperature sensors
Tightly secure the liquid line ( / red) and vapor line ( / blue) temperature sensors on the harness to their respective
pipelines using the included cable ties, then wrap with foam tape. Attach the ambient ( / black) temperature sensor
to a shaded location near the A/C unit, suspended in free air and out of direct sunlight.
7
Mount the harness
Attach the harness overmold to a secure location outside of the A/C unit, such as the A/C support bracket, or the
vapor line. A cable tie is provided.

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9
Finishing up
Replace the service panel on the A/C unit and switch the power back to the ON position. The indicator light on
Sentree will ash red. Monitor the light until it turns green (up to 2 minutes), indicating a good cellular signal has
been achieved.
Sign in at alertlabs.com to register and activate the Sentree unit.
8
Mount the unit
Plug the primary cable from the harness into the Sentree main housing by pressing the connector in and twisting.
Mount the Sentree main housing to a secure, vertical surface with appopriate screws (not included).

Need help?
For additional help, or in case of issue, visit alertlabs.com/support or contact
us at [email protected]