Changing Blower Speed; Installing Control Circuit Wiring; System Checkout; Checking Installation - Nordyne E2 Series Owner's Manual & Installation Instructions

IMPORTANT:
!
If a relay box is installed, blower speeds
for heating and cooling are set inside
the relay box (see instructions
included with relay box). The blower
speed inside the furnace control box
must be set to low or medium-low.
Never change to a heating speed lower
than that shown in Table 5.

Changing Blower Speed

E2EH: The selected heating blower lead is
attached to the wire lead attached to terminal 2
of the blower selector switch.
a. Remove blower lead from the wire lead off
of terminal 2.
b. Choose desired speed.
c. Attach new blower lead to wire lead off
terminal 2 of blower selector switch.
E2EB: The selected heating blower lead is
attached to terminal 6 on blower relay. The
selected cooling blower lead is attached to
terminal 4 on blower relay.
a. Remove heating blower lead from terminal
6 on blower relay.
b. Choose desired speed and install new
blower lead onto terminal 6 of blower relay
for new heating speed.
c. Remove cooling blower lead from terminal
4 on blower relay.
d. Install new blower lead onto terminal 4 of
blower relay for new cooling speed.
See Table 7 for blower performance data.
Plug/Receptacle Position
2 Speed Blower
4 Speed Blower
Control Box Blower Lead
Minimum approved speed for
010 and 012 models.
18

Installing Control Circuit Wiring

NOTE: Installation of a five-wire thermostat
circuit is recommended to provide for future
addition of a heat/cool thermostat.
1.
a.
b.
2.
3.
4.

SYSTEM CHECKOUT

Checking Installation

1.
2.
3.
4.
5.
6.
7.
Pin1
Low
Low
Red
Table 5. Furnace Blower Speed Data
Install the 24V control-circuit cable through
plastic bushing at either side of furnace.
For models without a relay box, connect
wires to furnace at blower plug pigtails (see
wiring diagrams). Secure all connections
with wire nuts.
For units with a relay box installed, make
wiring connections at relay box low-voltage
terminal board. (See relay box installation
instructions.)
Route control circuit wiring to wall
thermostat and outdoor section, if installed.
(See relay box installation instructions if
applicable.)
Set anticipator per Table 8 or per the
marking on the unit.
See the back cover of this manual for E2EB
thermostat connections.
Refer to appropriate wiring diagram and
recheck all wiring connections. Ensure that
all connections are tight.
Check blower motor and relay box
connectors for proper connection.
Reinstall control box cover(s).
Switch circuit breaker(s) to "ON" position.
Set furnace blower selector switch (see
Figure 14) to "AUTO" (EH Units only).
Replace outer furnace door.
Check all duct connections and tape for air
leakage.
Pin2 Pin3
High -
Med-Lo Med-Hi
Yellow Blue
Minimum approved speed for
015, 017, 020 and 023 models.
Pin4
-
High
Black