Aprilaire 8062 User Manual

Installation Instructions

8062 TrH Support Module

Application

The Aprilaire 8062 is designed to offer versatility in climate control. A set of onboard dip switches allows you to select whether you want as many as two sensor inputs per support module to control, monitor or even do a combination of both. This temperature/humidity data is sent by digital communications back to an Aprilaire 8870 Communicating Thermostat, allowing you to accurately control and monitor temperature/humidity in a given area or multiple areas. The Aprilaire 8870 Communicating Thermostat can support up to four Support Modules (TrH or Tf).

Single Support Module Installation

Install the Aprilaire thermostat according to the instruction manual supplied with it. Check to ensure that thermostat is operating (display shows correct temperature). CAUTION: Remove the thermostat from the subbase before wiring the support module to avoid damage from live wire.

Remove the circuit board from the base by pulling back the

latch that holds it at the bottom center.

Use the subbase as a template to mark the mounting hole

locations on the wall. The word "TOP" will be written in the subbase. Position the subbase so that the wires can be pulled through the hole in the top left-hand comer. Drill size for the wall anchors is 3/16 inch. Mount the subbase using the two #6 screws and anchors provided (larger screws will prevent the circuit board from properly snapping into place).

If side access is preferred for wiring, clip out the side vents at the locations shown below.

Choose the wall location where the TrH module will be

mounted. Locate in an area free from drafts. Do not mount support module on an exterior wall. Run CAT -5 wire from the thermostat to the support module location. Avoid routing wires near sources of electronic noise such as computer monitors, fan motors or fluorescent lights. Maximum distance from the thermostat is 1000 ft. (300m).

Open the support module case by pulling the cover straight

forward.

~ ~

'Cut here for side access:

6. Snap the circuit board back into the subbase by sliding the top of the board in first and then snapping down on the bottom. Check to be sure that the latch holds the board

properly. Strip '/. inch of insulation from the four wires at the support

module. Install the wires in the terminals labeled RSR, RSC, RSB and RSA. One twisted pair of wires should be used for the RSR and RSC connection and another pair of twisted wires should be used for the RSB and RSA connection. Push the extra wire back into the wall cavity. Seal the hole in the wall around the cable to eliminate any draft that might affect the sensor.

. Connect the wires on the thennostat subbase to the

terminals labeled RSR, RSC, RSB and RSA. Make sure that each terminal on the support module is wired to the terminal with the same label at the thennostat.

. If necessary, change the TrH support module dip switch

settings. Note: switches must be set prior to powering the support module (support module is powered when thennostat is returned to its base). If switches need to be changed after powering the support module, the thennostat must be removed from its base for a minimum of 15 seconds to ensure proper reset of the support module.

10. Mount the thennostat on the subbase and confinn that it is displaying the correct temperature or humidity.

B2202777

Multiple Support Module Installation

up to 4 support modules can be connected to provide temperature or humidity averaging in a large area or for several zones being controlled by the same system. The maximum

cumulative distance of all of the support modules from the

thermostat is IOOOft.

CAUTION: Make sure that there is no power to the support modules by removing the thermostat from the

subbase. Wire the first support module using the single support

module instructions. Daisy chain the remaining support modules as shown below.

THERMO- MODULE MODULE MODULE MODULE

STAT J 2 3 4'

RSR - RSR - RSR - RSR - RSR

RSC . . RSC . . RSC . . RSC . RSC

RSB . . RSB . . RSB . . RSB . RSB RSA . . RSA . . RSA . . RSA . RSA

Set the TrH Support Module dipswitches.

c:==-

8:=:J

2-(

...~

c==-

Dioswitches 1 & 2 - Address

The following diagram shows how to set the top two address dips witches. EACH SUPPORT MODULE MUST HAVE ITS

OWN ADDRESS, 1-4.

Dioswitch 3 - Temoerature fnout

Each support module has two sensors, Sensor 1 and Sensor 2. Determine whether you want the Sensor 1 input to monitor or conb'ol temperature. If dipswitch number 3 is in the "oft" position, it will monitor the temperature.

OFF

ADORESS ADDRESS MONITDR (SI) MONITOR (S2) SPARE TI/T2 (SI)

~ ] ADDRESS 1

~] ADDRESS 2

ADDRESS ADDRESS

CONTROL (SI) CONTROL (S2) SPARE ONBOARDSENIOR

~] ADDRESS 3

~] ADDRESS 4

If the support module is set to Address 1 and the Sensor 1 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.

If dipswitch 3 is set to the "on" position, it will use the reported temperature to control the thermostat. The sensor control temperature will be displayed on the thermostat. If multiple support modules are daisy chained together, all of the sensors set to control will be averaged and the average temperature will

be displayed on the thermostat. Dioswitch 4 -Humiditv Inout

Sensor 2 is an onboard humidity sensor. Determine whether you want the Humidity sensor input to monitor or control humidity. If dipswitch number 4 is in the "off" position, it will

monitor the humidity level (%). If dipswitch 4 is set to the "on" position, it will control the

humidity level and the value will be displayed on the thermostat (with a % sign to indicate humidity). Up to 4 support modules can be daisy chained together. All humidity sensors that are set to control will be averaged and the average humidity will be displayed on the thermostat. Note: If any of the remaining temperature sensors are 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 recognizes humidity control values, make sure that all temperature sensors (for this thermostat) are set to the

"Monitor" mode.

Dioswitch 6 - Tltr2 or Onboard Sensor

Determine whether you want the Sensor 1 input to use the temperature sensed by the onboard thermistor or to use the input from a remote sensor (i.e. flush mount sensor or duct/outdoor sensor). If dipswitch number 6 is in the "off" position it will use the remote sensor inputs that have been wired to the TIm terminals. If the dipswitch is in the "on" position, it will use the temperature input from the onboard thermistor. This option only exists for the Sensor I input and can still be configured to monitor or control. The thermostat will not display temperature (Sensor 1) or humidity (Sensor 2) values if

dipswitch 6 is set to TIm without wiring a sensor to the Tltr2 terminal.

Applications

Humidity Control

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