Model 8142Nc - Wiring To Various Controls - Aprilaire 8142 Instrucciones De Instalación Y Funcionamiento

MODEL 8142NC – WIRING TO VARIOUS CONTROLS
The Model 8142NC Fresh Air Ventilator can be wired to Aprilaire Thermostat Models 8620 or 8620W, to Aprilaire IAQ Control Models 8910, 8910W or
8920W, or to the Model 8120A or 8120X Digital Ventilation Controller . If the ventilator is ducted to the return side of the HVAC system and a separate
damper is installed (see FIGURE 6 on page 4), an additional transformer may be required if the HVAC system transformer does not have enough
capacity to power a damper (10 VA required, use Aprilaire part number 4010 if needed) . Select the diagram that corresponds to the control to be
used and whether an additional transformer is needed for a separate damper . Wire the controls to the HVAC equipment and any other IAQ accessory
in accordance with the literature provided with the control .
FIGURE 7 – WIRING TO IAQ CONTROL
CONTROL MODULE OF IAQ CONTROL
– MODELS 8910, 8910W AND 8920W*
FIGURE 8 – WIRING TO THERMOSTAT
MODEL 8620/8620W THERMOSTAT*
I2 C I1 O/B Y Y2 G RC R
*Outdoor Temperature is supplied with the control and is required for optimum ventilation control.
24 VAC
VENT
W2 W L S2 S1 T1 T2
FIGURE 7A – WIRING TO IAQ CONTROL AND DAMPER
CONTROL MODULE
OF IAQ CONTROL
– MODELS 8910,
8910W AND 8920W*
FIGURE 8A – WIRING TO THERMOSTAT AND DAMPER
MODEL 8620/8620W THERMOSTAT*
I2 C I1 O/B Y Y2 G RC R W2
24 VAC
24 VAC, 10VA
TRANSFORMER
120 VAC
DAMPER
MOTOR
M
24 VAC
VENT
24 VAC
24 VAC, 10VA
TRANSFORMER
120 VAC
W L S2 S1 T1 T2
M
DAMPER
MOTOR
English 5