Wiring Diagrams - Aprilaire S86N MU Manual

RH 24VAC supply heating*
RC 24VAC supply cooling*
First stage heat (conventional) /
W
First stage auxiliary (heat pump)
First stage cooling (conventional) /
Y
First stage compressor (heat pump)
G Fan
C
Common
O/B Reversing valve
System fault indicator (optional)
L
(heat pump only)
Second stage heat (conventional) /
W2
Second stage auxiliary (heat pump)
Second stage cooling (conventional)
Y2 / Second stage compressor (heat
pump)
T1 & T2 Outdoor/remote temperature sensor
Indoor Air Quality control output
I1 & I2
(S86N MUPR only)
* Jumper between RC & RH is used in single transformer
systems (see wiring diagrams).
10
FIGURE 4 – WIRING TERMINALS
90-2564

WIRING DIAGRAMS

RH
FIGURE 5 – SINGLE & MULTI
STAGE HEAT/COOL, ONE
RC
TRANSFORMER
W
NOTE: Dashed lines
Y
represent wiring for multi
G
stage systems only
C
O/B
L
W2
Y2
T2
T1
I2
I1
JUMPER
ODT/REMOTE
TEMP SENSOR
90-2565
R
W
Y
G
C
FURNACE
W2
Y2
Y2
AIR
C
CONDITIONER
Y
11