Manual 2100-670I
Page
18 of 47
5. Press ENTER key to scroll to
Blower OV Speed
(see
Figure 29).
6. Press UP or DOWN keys to adjust the speed to the
desired output (see Table 3A or 3B).
7. Press ENTER key to scroll to
Override
.
8. Press UP or DOWN key to change
Disabled
to
Enabled
.
9. Press ENTER key to save.
FIGURE 28
Adjusting Freeze Setpoint and Alarm Delay
FIGURE 29
Putting Blower Output into Override Mode
TABLE 3A
HR36AP* Blower Speeds
Mode
Speed
Percentage
Controller
Output Volts
CFM
Freezestat Active
94.0
9.4 v
1500
High Sensible
Full Load Cooling
94.0
9.4 v
1500
High Sensible
Part Load Cooling
54.0
5.4 v
1100
Standard Full
Load Cooling
63.0
6.3 v
1200
Standard Part
Load Cooling
43.0
4.3 v
950
Economizer Standard
Economizer High S/T
90.0
63.0
9.0 v
6.3 v
1450
1200
Heating
63.0
6.3 v
1200
Dehumidification
Mode
19.0
1.9 v
470
EEV Operation
EEV Superheat Control
The electronic expansion valve (EEV) will open or close
to maintain 10° of superheat while the compressor is
running. When the compressor is not running, the valve
will close.
Low superheat protection will be active once the
superheat value is at or below 5°F. At this point,
the control will aggressively close the valve so that
superheat is maintained.
Additional EEV Alarms
Low Superheat Alarm
This alarm will become active when the calculated
superheat goes below 5°F. This alarm will clear itself
when the condition is no longer present.
This alarm cannot be adjusted.
Indoor Airflow
Indoor Airflow Components
Blower
The unit is equipped with a blower that is driven by
an electronically commutated motor (ECM). This
blower is controlled by a 0-10v signal provided from
the controller. This 0-10v signal is converted to a
PWM signal with an adapter. The blowers on both the
HR36AP* and HR58AP* models use a 10" diameter
wheel. The HR36AP* operates between 250-850 rpm
while the HR58AP* operates between 250-1400 rpm.
The blower output can be put into an override mode for
verification or troubleshooting.
To put the blower into override:
1. Press MENU key to go to the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter
TECHNICIAN password 1313.
3. Press UP or DOWN keys to scroll to
I/O Config
;
press ENTER key.
4. Press UP or DOWN keys to scroll to
Blower Fan
(C13)
; press ENTER key.
