Model 8142 - Wiring The Control To The Hvac System - Aprilaire 8142 Instrucciones De Instalación Y Funcionamiento

MODEL 8142 – WIRING THE CONTROL TO THE HVAC SYSTEM
NOTICE
Disconnect power to HVAC system during wiring to avoid
electrical shorts.
1. Remove the control from the mounting plate as shown in FIGURE 11 .
Set control aside in a safe place until all wiring has been completed .
2. Run a 6-conductor (min . ) cable for furnace/AC applications or a
7-conductor (min . ) cable for heat pump applications between the
control and the HVAC system .
3. Wire to the HVAC system in accordance with FIGURE 12 if installed in
a furnace/AC application or FIGURE 13 if installed with a heat pump .
FIGURE 12 – WIRING VENTILATION CONTROL TO A FURNACE
R & C = 24 VAC
Y = COOLING
W = HEAT
GS = FAN INPUT
GH = FAN OUTPUT
FIGURE 13 – WIRING VENTILATION CONTROL TO A HEAT PUMP
R & C = 24 VAC
Y = COMPRESSOR
W1 = 1st STAGE AUX. HEAT
O = REV. VALVE, COOLING
GS = FAN INPUT
GH = FAN OUTPUT
THERMOSTAT
R C Y W G
WIRE NUT
(FIELD
SUPPLIED)
R C Y W G
FURNACE
HEAT PUMP THERMOSTAT
R C Y W1 O G
R C Y W O G
HEAT PUMP
FIGURE 11 – REMOVE CONTROL FROM MOUNTING PLATE
CONTROL
MOUNTING
PLATE
CONTROL
VENTILATION CONTROL
R
C
Y
W
O
GS
GH
VENTILATION CONTROL
R
WIRE NUT
(FIELD C
SUPPLIED)
Y
W
O
GS
GH
CONTROL
CONNECTOR
ODT
VENT
ODT
VENT
English 7
90-2291