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2. MOUNT THE 8052 PLENUM TEMPERATURE SENSOR (provided)
IMPORTANT: Do not mount the sensor in direct line-of-sight of the heat exchanger,
cooling coils, or UV lights as they may cause the sensor to report false temperature
readings.
• Locate the sensor in the supply trunk, after the heat exchanger and cooling coils and
before the zone dampers (shaded areas). (See Figure 2)
• Mount the 8052 Sensor according to Installation Instructions provided with the sensor.
• Wire the 8052 Sensor to the Plenum Sensor terminals on the zoned comfort control panel
before power is applied to control panel.
• Measure the resistance across the Plenum Sensor terminals (before power is applied to
the panel) and confirm that it roughly corresponds to the ambient temperature values
listed in the table below.
• NOTE: In order for the control panel to recognize a sensor, it must be wired to the panel before power is applied.
3. PROVIDE CONTROL SYSTEM POWER
Install a transformer, separate from the transformer provided for the HVAC equipment, to provide power for the control panel, thermostats and
dampers. The size of the transformer depends on the greatest number of dampers that will be energized at any given time. If more than 6
dampers could be powered at one time, install dedicated damper transformers and a Model 8028 Damper Power Distribution Panel. Use the table
below to size the added transformer(s). Aprilaire Flexible Link Dampers require 12 VA per damper. Multiply the number of dampers by 12 and
select a transformer that meets or exceeds this value.
The table below illustrates.
4. SET UP THE CONTROL PANEL FOR THE APPLICATION
• Z1 HC/Z1 HP is set according to the type of thermostat installed in Zone 1. If a heat/cool thermostat is used in Zone 1, place the pin jumper
block on the left two pins (Z1 HC). While set as Z1 HC, emergency heat can only be controlled with the on board E-HEAT switch. If a heat pump
thermostat is used in Zone 1, place the pin jumper block on the right two pins (Z1 HP). Using a heat pump thermostat in Zone 1 allows for
emergency heat control from the Zone 1 thermostat.
• GAS/ELECTRIC refers to the auxiliary heat source. If gas (or propane or oil) heat is to be used, place the pin jumper block on the left two pins
(GAS). This will allow the auxiliary heating equipment to control the fan operation through the use of a plenum switch. If electric heat is to be
used, place the pin jumper block on the right two pins (ELECTRIC).
• PURGE/NO PURGE determines whether the zone control panel or the equipment will control the fan purge. If set to PURGE, pin jumper block on
left two pins, the G terminal and any energized damper terminals will remain energized for a one-minute purge delay following the completion
of a cool call, regular heat call or an electric auxiliary heat call. If set to NO PURGE, pin jumper block on right two pins, the G terminal will de-
energize immediately and any energized damper will remain energized for 3.5 minutes following the completion of a call. The NO PURGE
setting is designed for use with systems where the equipment has a built-in fan purge.
• HT-160/120: If using a plenum temperature sensor, this jumper controls the temperature at which the heating equipment will cut out to prevent
overheating. Set the high limit temperature that is appropriate for the equipment being used. For a high limit temperature of 160°F, place the pin
jumper block on the left two pins (HT-160). For a high limit temperature of 120°F, place the pin jumper block to the right two pins (120).
• CL-45/40: If using a plenum temperature sensor, this jumper controls the temperature at which the cooling equipment will cut out to prevent
freezing the indoor coil. For a low limit temperature of 45°F, place the pin jumper block on the left two pins (CL-45). For a low limit temperature
of 40°F, place the pin jumper block to the right two pins (40).
5.WIRE THE SYSTEM
Use standard 18 or 20 gauge thermostat wire, color coded wherever possible to simplify troubleshooting. The wiring diagram and the
THERMOSTAT SELECTION guide below are to be used to guide you through wiring the system.
Highest Number of Powered Dampers
3 or Less
4
5
6
7 or More
VA Required
36 VA or less
48 VA
60 VA
72 VA
No. of Dampers* 12
Select Transformer
40 VA
50 VA
75 VA
75 VA
75 VA + 40 VA / 3 Dampers
Ambient Temperature (°F)
30
40
50
60
70
80
90
100
Resistance (kΩ)
7.8
7.2
6.6
6.0
5.4
4.8
4.2
3.6
ZONED COMFORT CONTROL:
MOUNT PLENUM SENSOR IN
SHADED AREA
ZONE DAMPERS
UPFLOW
FURNACE
FIGURE 2
90-690