Installation Instructions 8062 TrH Support Module

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4.
Removethe circuit board from the baseby pulling back the
latch that holds it at the bottom center.
Installation Instructions
8062 TrH Support Module
Application
The Aprilaire 8062 is designedto offer versatility in climate
control. A set of onboarddip switchesallows you to select
whetheryou want asmany as two sensorinputsper support
moduleto control, monitor or evendo a combinationof both.
This temperature/humiditydatais sentby digital
communicationsback to an Aprilaire 8870 Communicating
Thermostat,allowing you to accuratelycontrol and monitor
temperature/humidityin a given areaor multiple areas. The
Aprilaire 8870 CommunicatingThermostatcan supportup to
four SupportModules (TrH or Tf).
s.
Single Support Module Installation
Install the Aprilaire thermostataccordingto the instruction
manualsuppliedwith it. Checkto ensurethat thermostatis
operating(display showscorrecttemperature).
CAUTION: Removethe thermostat from the subbase
before wiring the support module to avoid damagefrom
live wire.
Use the subbaseas a templateto mark the mountinghole
locationson the wall. The word "TOP" will be written in
the subbase.Positionthe subbaseso that the wires canbe
pulled throughthe hole in the top left-handcomer. Drill
sizefor the wall anchorsis 3/16 inch. Mount the subbase
usingthe two #6 screwsand anchorsprovided (larger
screwswill preventthe circuit board from properly
snappinginto place).
If side accessis preferredfor wiring, clip out the sidevents
at the locationsshownbelow.
2. Choosethe wall location wherethe TrH modulewill be
mounted.Locate in an areafree from drafts. Do not mount
supportmoduleon an exterior wall. Run CAT-5 wire from
the thermostatto the supportmodule location. Avoid
routing wires near sourcesof electronicnoisesuchas
computermonitors,fan motors or fluorescentlights.
Maximum distancefrom the thermostatis 1000ft. (300m).
3.
Openthe supportmodulecaseby pulling the cover straight
forward.
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'Cut here for side access:
6. Snapthe circuit boardback into the subbaseby sliding the
top of the boardin first and then snappingdown on the
bottom. Checkto be surethat the latch holds the board
properly.
7.
Strip '/. inch of insulationfrom the four wires at the support
module. Install the wires in the terminalslabeledRSR,
RSC,RSB and RSA. One twisted pair of wires shouldbe
usedfor the RSR and RSC connectionand anotherpair of
twistedwires shouldbe usedfor the RSB and RSA
connection. Pushthe extra wire back into the wall cavity.
Sealthe hole in the wall aroundthe cableto eliminateany
draft that might affect the sensor.
8.
Connectthe wires on the thennostatsubbaseto the
terminalslabeledRSR, RSC,RSB and RSA. Make sure
that eachterminal on the supportmodule is wired to the
terminal with the samelabel at the thennostat.
9.
If necessary,changethe TrH supportmodule dip switch
settings. Note: switchesmust be setprior to poweringthe
supportmodule(supportmodule is poweredwhen
thennostatis returnedto its base). If switchesneedto be
changedafter poweringthe supportmodule,the thennostat
must be removedfrom its basefor a minimum of 15
secondsto ensureproper resetof the supportmodule.
10. Mount the thennostaton the subbaseand confinn that it is
displayingthe correcttemperatureor humidity.
B2202777
Multiple Support Module Installation
up to 4 supportmodulescanbe connectedto provide
temperatureor humidity averagingin a large areaor for several
zonesbeing controlledby the samesystem. The maximum
cumulativedistanceof all of the supportmodulesfrom the
thermostatis IOOOft.
CAUTION: Make sure that there is no power to the
support modules by removing the thermostat from the
subbase.
2.
Wire the first supportmodule usingthe singlesupport
module instructions. Daisy chainthe remainingsupport
modulesas shownbelow.
THERMO- MODULE MODULE
STAT
J
2
RSR
-.
RSR
-
RSR
-.
MODULE MODULE
3
4'
. RSC. .RSC
RSC
RSB.
RSA.
. RSB.
. RSA.
. RSB.
. RSA.
RSR
-.
. RSC
. RSB.
. RSA.
RSR
RSC
RSB
RSA
Setthe TrH SupportModule dipswitches.
3.
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2-(
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S!
8L
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OFF
c:==8:=:J
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c==-
ADORESS
ADDRESS
MONITDR (SI)
MONITOR (S2)
SPARE
TI/T2 (SI)
ADDRESS
ADDRESS
CONTROL (SI)
CONTROL (S2)
SPARE
ONBOARDSENIOR
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If dipswitch 3 is setto the "on" position, it will usethe reported
temperatureto control the thermostat. The sensorcontrol
temperaturewill be displayedon the thermostat. If multiple
supportmodulesare daisy chainedtogether,all of the sensors
setto control will be averagedandthe averagetemperaturewill
be displayedon the thermostat.
Dioswitch 4 -Humiditv Inout
Sensor2 is an onboardhumidity sensor. Determinewhether
you want the Humidity sensorinput to monitor or control
humidity. If dipswitch number4 is in the "off" position, it will
monitor the humidity level (%).
If dipswitch4 is setto the "on" position, it will control the
humidity level andthe value will be displayedon the thermostat
(with a % sign to indicatehumidity). Up to 4 supportmodules
canbe daisy chainedtogether. All humidity sensorsthat are set
to control will be averagedandthe averagehumidity will be
displayedon the thermostat. Note: If any of the remaining
temperature sensorsare also set to "control", the
temperature control averaging will override the humidity
control averaging and humidity control values will be
ignored by the thermostat. To ensure that the thermostat
recognizeshumidity control values, make sure that all
temperature sensors(for this thermostat) are set to the
"Monitor" mode.
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Dioswitches 1 & 2 Address
The following diagramshowshow to setthe top two address
dipswitches.EACH SUPPORT MODULE MUST HAVE ITS
OWN ADDRESS, 1-4.
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If the support module is set to Address 1 and the Sensor1
input is set to "monitor", then the monitored temperature
will be displayed as the remote temperature in the lower left
hand corner of the thermostat. Otherwise, the monitored
value will only be available through software that supports
this specific function.
] ADDRESS
1
ADDRESS
2
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ADDRESS
3
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ADDRESS
4
Dioswitch 3 Temoerature fnout
Eachsupportmodule hastwo sensors,Sensor1 and Sensor2.
Determinewhetheryou want the Sensor1 input to monitor or
conb'oltemperature.If dipswitch number3 is in the "oft"
position, it will monitor the temperature.
Dioswitch 6 Tltr2 or Onboard Sensor
Determinewhetheryou want the Sensor1 input to usethe
temperaturesensedby the onboardthermistoror to usethe input
from a remotesensor(i.e. flush mount sensoror duct/outdoor
sensor). If dipswitchnumber6 is in the "off" position it will use
the remotesensorinputsthat havebeenwired to the TIm
terminals. If the dipswitch is in the "on" position, it will usethe
temperatureinput from the onboardthermistor. This option
only existsfor the SensorI input and can still be configuredto
monitor or control. The thermostat will not display
temperature (Sensor 1) or humidity (Sensor2) values if
dipswitch 6 is set to TIm without wiring a sensorto the
Tltr2 terminal.
Applications
Humidity Control
In orderto set your thermostatup as a humidity controller, you
will needat leastone (up to four for averaging)
temperature/humiditysupportmodule(s)wired to the
thermostat.
Locatethe temperature/humiditysupportmodulein the areathat
you want to control humidity. Setthe T3tr4 sensor(Humidity)
Input to "Control" by moving the # 4 dipswitch to the "on"
position. Up to four T3/ T4 humidity sensorscan be setto
control and the reportedvalueswill be averagedand displayed
on the thermostat. Important: ~
of the temperature
sensorsconnectedto this thermostat can be set to control
becausea control temperature input to tbe thermostat will
override a control bumidity input. Make sure all
temperature sensorsare set to "Monitor".
OncedIe humidity control sensor(s)havebeenwired to dIe
dIermostat,dIe thermostatdisplay will changeto indicate% RH
insteadof °F/oC. The dIermostatmode selectionswill also
changeto reflect humidity control. The modeswill be
"Humidify", "Dehumidify", "Humidify or Dehumidify" and
"Off'. Humidification/Dehumidificationset points arechanged
dIe sameway dIat temperaturecontrol setpoints would be
changed.
Mode of Ol2erationSetto "Humidify"
The B terminal is continually energizedin the "Humidify"
mode. When the thermostatcalls for humidity, dIe WI/HUM
terminal will energize. If the minimum off time of2 minutes
hasnot elapsedsincethe previouscall, no terminalswill
energizeuntil it has. All energizedterminalswill remain
energizedfor the minimum on time of2 minutes.
Mode of Qi2erationSetto "Dehumidify"
The a tenninal is continually energizedin dIe "Dehumidify"
mode. Whenthe thermostatcalls for dehumidification,dIe
YI/DEHUM terminal will energize.IfdIe minimum off time of
4 minuteshasnot elapsedsincethe previouscall. no terminals
will energizeuntil it has. All energizedterminalswill remain
energizedfor the minimum on time of 4 minutes.
Heat Pump Applications
If the sensoris being usedwith a heatpump thermostatwidI
auxiliary heat,the thermostatcan be configuredto disablethe
useof auxiliary heatduring warm weatherandto lock out the
compressorwhen dIe outdoortemperatureis too cold. This
allows for the most efficient useof energy.
At warmertemperatures,a heatpump will operatemuch more
efficiently than the auxiliary heat. It can saveenergyto disable
auxiliary heatin somecases,for example,when returning from
a setbackon a mild day. The temperatureabovewhich auxiliary
heatis disabledis the auxiliary lockout temperatureor high
balancepoint. Refer to the thermostatusermanualfor a
detailedexplanation.
Air-to-air heatpumpsbecomelessefficient asthe outdoor
temperaturedrops. The temperatureat which it becomesmore
efficient to useauxiliary heat insteadof the heatpump is the
balancepoint or low balancepoint. Referto thermostatuser
manualfor a more detailedexplanation.
B2202777
Configurethe temperaturesensor(TIm) that you are using to
senseoutdoortemperatureto the "Monitor" modeby settingthe
dipswitch 3 to the "off' position andthe module addressto
number I. The high and low balancepoints are set at the
thermostat.Referto the thermostatInstallation Instructionsfor
more details.
Troubleshooting
Thermostat has no display: Check24 V AC supply. Check
for incorrectwiring betweenthe thermostatand supportmodule.
Incorrectwiring can damagethe thermostatand transformeror
blow a fuse in the equipment. Make sureall supportmodules
havea uniqueaddress.
Thermostat displays very high temperature or humidity:
Ensurethat dipswitch 6 is setproperly. If dipswitch 6 is setto
Tim and a sensorhasnot beenwired to the Tim terminal, no
temperatureor humidity readingswill be displayed. Also, if
dipswitch 6 is setto onboardand a sensorhasbeenwired to the
Tim terminal, incorrecttemperaturereadingswill be
displayed. Checkwires on remotesensors(flush mount or
outdoor/duct)to ensurethat they arenot touching. If they are,
separatethem.
Thermostat displays very low temperature: Remotesensor
(flush mount or outdoor/duct)is not connectedto support
moduleproperly. Checkwiring.
Thermostat doesn't display remote temperature/humidity:
Make surethat the supportmodule is setto address1. Reset
supportmoduleafter changingany dipswitchesby turning off
power for 15 seconds.
Thermostat displays RH instead of of or of instead of RH :
Make surethat monitor/controldip switchesare setcorrectly.
Resetsupportmoduleafter changingany dipswitchesby turning
off power for 15 seconds.
Specifications
Power Supply: 18to 30 V AC or DC (24 V Nominal)
Maximum Relative Humidity: 90% (non-condensing)
Max. Cable Length BetweenModule and TST A T: lOOOft
The maxinlum cumulativedistancebetweenmultiple support
modulesandthe thermostatis 1000ft.
Max. Cable Length BetweenModule and Remote Temp.
Sensor: 300ft
Temperature
Accuracy:
Comfort Range(60°F - 80°F): :t: 1°F
Control Range(40°F -100°F): :t:2°F
OperatingRange(-40°F - 185°F): :t:3°F
Maximum Display Range: -40°F - 185°F
Humiditv
Accuracy:
Comfort Range(10% - 45%): :f:3%
Control Range(10% - 90%): :f: 5%
Maximum DisplayedRange:0% - 900/0