2. Aprilaire
  3. 8052

Aprilaire 8052 Installation Instructions And Use

  • Hello! I am an AI chatbot trained to assist you with the Aprilaire 8052 Installation Instructions And Use. I’ve already reviewed the document and can help you find the information you need or explain it in simple terms. Just ask your questions, and providing more details will help me assist you more effectively!
Model 8052 Temperature Sensor
Installation Instructions
The Aprilaire® Model 8052 temperature sensor can be used
with Aprilaire thermostats, support modules, zone controls
and the Home Comfort Control™.
INSTALLATION INSTRUCTIONS
STEP 1 – INSTALL SENSOR BASED ON THE APPLICATION
Return Air Temperature
• LocatetheAprilaireModel8052sensorinthereturnat
least 6" upstream from the fresh air intake so the fresh air
does not influence the sensor reading (see FIGURE 2).
• Drilla3/8"holeintheductandmountthesensorwiththe
supplied screw and mounting bracket (see FIGURE 1).
Leaving Air Temperature
• LocatetheAprilaireModel8052sensorinthesupplytrunk,
after the heat exchanger and cooling coils (see shaded
area in FIGURE 2).
• Shieldormountawayfromdirectradiationsourcessuchas
sunlight, UV lights, heat exchangers or cooling coils.
• Drilla3/8"holeintheductandmountthesensorwiththe
supplied screw and mounting bracket (see FIGURE 1).
Outdoor Temperature
• LocatetheAprilaireModel8052sensoronthesideofthe
building out of direct sunlight (see FIGURE 3).
• Placeabovethesnowline.
• Placeatleast3'awayfromexhaustventsandcondensing
lines.
• Donotinstallinsideoutdoorcondensingunit.
Remote Radiant Heat
• LocatetheAprilaireModel8052sensorinaradiantfloor
system.
3/8" DIAMETER HOLE
DUCT SENSOR PROBE
SUPPLIED WIRE NUTS
SUPPLIED #8
SHEET METAL SCREW
90-630
FIGURE 1
NORTH, EAST
OR WEST SIDE
OF HOME
TEMPERATURE
SENSOR LEADS
ABOVE EXPECTED
SNOW LINE
TEMPERATURE
SENSOR
SENSOR
SENSOR
BRACKET
90-998
FIGURE 3
6" MIN.
FRESH AIR INTAKE
SUPPLY DUCT
RETURN DUCT
RETURN AIR LOCATION
LEAVING AIR
LOCATION
NOTE: THE EXAMPLE SHOWN
IS FOR AN UPFLOW FURNACE.
90-2039
FIGURE 2
1
AprilairePartners.com
P.O.Box1467Madison,WI53701-1467
800-334-6011F:608-257-4357
PrintedinUSA
©2015Aprilaire–AdivisionofResearchProductsCorporation
10006011B2202110B2.15
STEP 4 – WIRE THE SENSOR TO THE APRILAIRE CONTROL
• Use18–22awgwire(2-wirethermostatcable).
• Usethetwosmallwirenutsprovided.
• Uselessthan300'ofwire.
• Donotroutewirealong120VAClines.
CAUTION
Excessive bare wire can lead to shorts.
Strip only as much insulation as is necessary.
• Thesensorisnotpolarityspecific.Eithersensorleadmaybe
connected to either terminal on the Aprilaire control to which it
is wired.
– Forsupportmodules,useT1andT2orT3andT4terminals.
– Forthermostats,useS1andS2(Outdoor)orT1andT2(Remote)
terminals.
– Forzonecontrols,useDAT,PlenumSensororODTterminals.
– ForHomeComfortControl,useRAT,LATorODTterminals.
• Usecarewhenroutingandstrippingthewire.Sharpbends(kinks)
orcutsinthewire(particularlysusceptiblewheretheinsulationhas
beenstripped)canleadtoeventualconductorfailure.
STEP 5 – RECONNECT POWER TO THE APRILAIRE CONTROL
Sensor Specifications:
Resistance@77°F(25°C):10k
Tolerance@77°F(25°C):±3%
STEP 2 – DISCONNECT POWER TO THE APRILAIRE CONTROL TO
WHICH THE SENSOR WILL BE WIRED
CAUTION
Damage to components can occur if power is not disconnected.
STEP 3 – VERIFY THE SENSOR RESISTANCE
Useanohm-meterormultimetertomeasuretheresistanceofthe
sensor.MeasureatthewiresneartheAprilairecontroltocheckany
wiresplices.Confirmtheresistancecorresponds(within5%)tothe
temperature where the sensor is installed.
Temperature (°F) Resistance (k )
30 34.6
40 26.1
50 19.9
60 15.3
70 11.9
80 9.4
90 7.4
100 5.9
Note: This measurement should be done without the sensor
connected to the Aprilaire control.
2
/