Changing Blower Speed; Blower Installation; Installing Control Circuit Wiring - Nordyne Air Conditioner / Heat Pump Air Handler Owner's Manual & Installation Instructions

Plug/Receptacle Position
4 Speed Blower
Control Box Blower Lead
proper color-coded blower lead located inside the control
box. The speed(s) set by the factory may be different from
that shown on the wiring diagrams. See the unit control
box for factory set blower speed(s).

Changing Blower Speed

The selected heating blower lead is attached to terminal
6 of the blower relay. The selected cooling blower lead is
attached to terminal 4 of the blower relay.
• For New Heating Speed: Remove heating blower lead
from terminal 6 of the blower relay. Choose desired
speed and install new blower lead on terminal 6 of the
blower relay.
• For New Cooling Speed: Remove cooling blower lead
from terminal 4 of the blower relay.
lead on terminal 4 of the blower relay.
• Same Speed, Heating & A/C: Use white jumper wire
supplied with unit and jumper between terminals 5 &
2 on blower relay. See Table 4 for blower performance
data.
4-Ton Blower with Coil and
Coil and Filters, @ 0.3" ESP
Pin No.
#1
#2 Med.-Low
#3 Med.-High
#4
5-Ton Blower, with Coil and
Coil Filters, @ 0.3" ESP
Pin No.
#1
#2 Med.-Low
#3 Med.-High
#4
Multi-Speed, X13, Blower, with
Coil and Filters, @ 0.3" ESP
Pin No.
#1
#2 Med.-Low
#3
#4 Med.-High
#5
Table 4. Blower Performance
Pin1
Low
Red
Table 3. Furnace Blower Speed Data
Install new blower
Speed CFM
Low 880
1,170
1,310
High 1,460
Speed CFM
Low 990
1,320
1,620
High 1,790
Speed CFM
Low 880
1,000
Med 1,170
1,260
High 1,460
Pin2 Pin3
Med-LO Med-Hi
Yellow Blue

Blower Installation

1. Turn off all electrical supply circuits to the furnace at
the main service panel.
2. Remove furnace front door and switch furnace circuit
breaker(s) to OFF.
3. Disconnect the motor plug from the control panel
receptacle.
4. Remove one screw from left side of blower and three
screws from right side of blower. Slide blower forward
to remove.
5. Install new blower. NOTE: Make sure the side fl anges
engage under side mounting tabs. Three tabs on one
side and one on the other. The long tab is in the rear.
6. Replace screws removed from blower in step 4.
7. Connect the motor plug to the control panel receptacle.
8. Switch circuit breaker(s) to ON.
9. Reinstall furnace front door and turn on electrical
supply circuits to the furnace.

Installing Control Circuit Wiring

NOTE: Installation of a fi ve-wire thermostat circuit
is recommended to for future addition of a heat/cool
thermostat. See Figure 19 (page 16) for various E3EB
thermostat connections.
1. Install the 24V control-circuit cable through plastic
bushing at either side of furnace.
• Units without a relay box: connect wires to furnace
at blower plug pigtails (see wiring diagrams). Secure
all connections with wire nuts.
• Units with relay box installed: make wiring
connections at relay box low-voltage terminal board.
See relay box installation instructions.
2. Route control circuit wiring to wall thermostat and
outdoor section, if installed. (See relay box installation
instructions if applicable.)
3. Set anticipator per Table 5 or per the marking on the
unit.
Furnace Model
010, 012
015, 017, 020, 023
Table 5. Anticipator Settings
Pin4 Pin5
High -
Black -
T-Stat Anticipator Setting
0.2
0.4
15