Setting The Ventilation Cfm Levels; Figure 23 Motor Speed/Cfm Configuration - Bard I30A1DA Installation Instructions Manual

SETTING THE VENTILATION CFM
LEVELS
The I-TEC CRV has four pre-set levels of ventilation
CFM available. These are 300, 375, 450 and 525
CFM of ventilation air. This ventilation package
is shipped from the factory set on the 375 CFM
ventilation level while the economizer portion is set
on the 525 CFM ventilation level. To change between
these four different levels of provided ventilation CFM,
refer to Figure 23 to look up the corresponding CFM
needed for the intake and exhaust blowers to meet the
design criteria and determine which "speed/wire color"
is needed.
Open disconnect to shut all power OFF before
doing this! Failure to do so could result in
injury or death due to electrical shock.
Move pink wire to corresponding motor
speed for required economizer operation CFM.
Factory setting is High (525 CFM).
PINK
BROWN/WHITE
Move brown/white wire to corresponding motor
speed for required ventilation CFM. Factory
setting is Medium Lo (375 CFM).
Perform the following steps:
1. Open front swinging doors of main unit (by popping
2. Throw main power disconnect to the "OFF"
3. Remove six (6) screws holding front CRV door in
4. For CRV blower speed, locate brown wire with
5. Move the brown wire with white trace to the
6. For economizer blower speed, locate pink wire that
7. Move the pink wire to the corresponding CFM level
FIGURE 23
Motor Speed/CFM Configuration
VENT OPTION INTAKE/EXHAUST SPEEDS
WIRE COLOR SPEED NOM. CFM
BLACK HI
BLUE MED-HI
ORANGE MED-LO
RED LO
TO CHANGE SPEEDS, MOVE BROWN
WIRE WITH WHITE TRACE.
7961-755-2
front door latches).
position to eliminate risk of injury or death due to
electrical shock.
place (see Figure 21).
white trace that has as black terminal on the end
where it connects to the terminal strip (see Figure
23).
corresponding CFM level needed in accordance
with Figure 23.
has a black terminal on the end where it connects
to the terminal strip (see Figure 23).
needed in accordance with Figure 23.
525
450
375
300
HI
MED. HI
MED. LO
LO
7961-7554
BLACK
BLUE
ORANGE
RED
MIS-3271
Manual 2100-597G
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