Instructions / Assembly

14
English
© 2015 Schneider Electric. All rights reserved.
Wiser Air Installation Guide V13
www.wiserhome.com
Wiser Air Installation Guide V13
www.wiserhome.com
15
English
Installation
HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH
Disconnect all power before working on equipment.
Failure to follow these instructions will result in death or
serious injury.
TIP: Take a photograph of the initial wiring of the HVAC system to use as
a reference and to help prevent wiring mishaps during the installation
process.
1. Disconnect the wires from the Y and W terminals on the thermostat.
2. Connect the diode pair to the Y and W terminals (Fig. 8). Ensure that the diode
pair’s Y terminal is connected to the thermostat’s Y terminal and the diode pair’s
W terminal is connected to the thermostat’s W terminal.
3. Connect both wires that were disconnected from the thermostat base in Step 1
to their corresponding points on the diode pair.
4. Connect the other wire that was disconnected from the thermostat base to the C
terminal on the thermostat.
RC
G
W2
Y2
O/B
S1
C
RH
U
S2
W
Y
Figure 8. Diode pair
connection.
This wire con-
nects to the W
on the Wire
Extender
terminal.
DANGER
1. Isolate power from the HVAC
system.
2. Familiarize yourself with the HVAC
control board located inside the air
handler system.
3. Relocate the wire from the R
terminal on the HVAC control board
to the RC or RH terminal on the
STAT side of the PCB assembly.
Ensure that the jumper between the
RC and RH terminals is installed.
4. Relocate the wire from the G
terminal on the HVAC control board
to the G terminal on the STAT side
of the PCB assembly.
5. Connect the wire at the C terminal
of the thermostat to the C terminal
on the STAT side of the PCB as-
sembly.
6. Connect the wire from the common
point of the diode pair to either the
W or Y terminal on the STAT side
of the PCB assembly. Ensure that
the jumper between the W and Y
terminals is installed.
7. Connect the wires between ter-
minals RC, Y, W, C, and G on the
HVAC control board and the EQUIP
side of the PCB assembly.
8. Connect RC, Y, W, C, and G on the
HVAC control board to RC, Y, W,
C, and G on the EQUIP side of the
wire extender respectively.
9. Mount the PCB assembly near the
HVAC control board.
RC
RC R Y W C G
STAT EQUIP
C RCY
RH Y W C G
HVAC EQUIPMENT
RC
G
W2
Y2
O/B
S1
C
RH
W
Y
U
S2
WISER AIR BACK PLATE
WIRE TO HVAC SIDE
WIRE TO WISER AIR SIDE
RH W C G
W
Y
Installing the wire extender kit in a 4-wire system
Figure 9. PCB Installation
in a 4-wire system.