Haier GE NAMV1 Series Installation Instructions Manual page 16

BDC3 Blower Control
JP1 15 PIN
PLUG (BOARD
TO MOTOR)
QC1
24V ACCESSORY
SERVICE
CONTACTS –
RATED FOR 1 AMP 24V/1A
OR LESS
QC2
NORM
+
OPERATIONAL
-
SELECTOR PINS
(AFFECTS BOTH TEST
HEATING AND
ADJUST
COOLING MODES)
HEATING SPEED
SELECTOR PINS
COOLING SPEED
SELECTOR PINS
Figure 16. BDC3 Variable Speed Control Selections
NAMV1
the external static range. A particular CFM can be obtained
by positioning jumpers (COOL, HEAT, and ADJUST) on
the BDC3 control.
The jumpers are labeled 1, 2, 3, and 4. This indicates the
selected air volume (CFM). The ADJUST jumper is labeled
Test, -, +, and Norm. The - and + pin settings are used to
add or subtract a percentage of the CFM selected. The
Test jumper is used to operate the motor in the test mode.
fan delay occurs.
performance tables to determine the correct air volume for
heat and cool speed taps.
Diagnostic LEDs located on the BDC3 control to assist in
servicing the unit. Read the jumper settings section before
Adjusting the Blower Speed
Diagnostic LEDs
• RUN LED
motor to run.
• CFM LED indicates the cubic feet per minute at
approximately every 100 CFM. For example, if the unit
Page 16 of 24
JP1
4 4 4
3 3 3
2 2 2
1 1 1
HEAT COOL DELAY CFM RUN
DIAGNOSTIC
LEDS
FAN DELAY
SELECTOR PINS
to meet application CFM requirements.
Jumper Settings
Before changing jumper setting, make sure the motor
selections for NAMV1 series units. These settings are
be adjusted to provide approximately 400 CFM per ton.
Model
-18
-24
-30
-36
-42
-48
-60
NOTES -
1. Condensing Unit
2. Heat Pump
3.
4.
* Minimum setting for heat
Table 3. Recommended Blower Speed Taps
Figure 16.
After the CFM for each application has been determined,
selections.
Issue 2336
IMPORTANT
NAMV1. When
Speed Tap Selection
Cooling Heating*
Note 1 Note 2 Note 3
COOL COOL HEAT
PIN #2 PIN #2 PIN #2
COOL COOL HEAT
PIN #3 PIN #3 PIN #3
507789-02G / 31-5000673-1
Note 4
HEAT
PIN #2
HEAT
PIN #3