Table of Contents
Advertisement
System Pressure — This variable displays the static system
pressure through an integrated pressure sensor in increments of
0.1 in. wg. When Bypass Commissioning and Pressure Sensor
Cal are Enabled, the user may force this value to the correct
reading of the System Pressure as measured with calibrated test
equipment. From the forced value, the bypass controller calcu-
lates a calibration multiplier that will always be applied to the
System Pressure sensor reading. Once the multiplier is calcu-
lated, the force is removed and the multiplier is applied to the
System Pressure sensor reading.
System Pressure: Display Units
Default Value
Display Range
Forcible
System Pressure Setpt — This variable displays the supply air
static pressure set point that is to be maintained by the bypass
controller. The bypass controller determines the damper posi-
tion by comparing the system static pressure to this set point.
When the user forces the System Pressure Setpt from this table,
the bypass controller automatically updates the System
Pressure Setpt configuration value in the Pressure Setpoint Ser-
vice Configuration Table.
System Pressure
Setpoint:
Display Units
Default Value
Display Range
Forcible
Damper Cal Alarm — This variable displays Alarm if the
damper calibration process failed because there was an error
during the closed or open position calibration of the damper.
Normal is displayed when a successful damper calibration
takes place.
Damper
Cal Alarm:
Default Value
Display Range
Forcible
Press Sensr Cal Alarm — This variable displays Alarm if the
pressure transducer zero calibration process failed because the
pressure sensor voltage did not decrease to within the zero
pressure tolerance (1.0 ± 0.1 vdc). Normal will be displayed
when a successful pressure transducer zero calibration takes
place.
Press Sensr
Cal Alarm:
Default Value
Display Range
Forcible
BYPASS CONTROLLER SYSTEM PILOT DEFAULT
MAINTENANCE TABLE — See Table 8 for Bypass Con-
troller System Pilot Default Maintenance (SP_MAINT).
DESCRIPTION
Bypass Controller
Duct Temperature
Damper Position
System Pressure
System Mode
in. wg
0.00
0.00 to 2.00
Yes
in. wg
0.50
0.10 to 1.80
Yes
Normal
Normal/Alarm
No
Normal
Normal/Alarm
No
Table 8 — System Pilot Default Maintenance
VALUE
UNITS
73.8
dF
0
%OPEN
0.00
in H2O
BPCOMMIS
Table 9 — Alarm Configuration
DESCRIPTION
VALUE
Alarm Routing Control
Re-alarm Time
Duct Temperature — This variable displays the duct tempera-
ture at the bypass damper through a 10K thermistor with a
measurement range from –40 to 245 F in 0.1º F increments.
Duct
Temperature:
Damper Position — This variable displays the damper posi-
tion percent range of rotation determined by the damper feed-
back potentiometer. The bypass controller is designed for use
on dampers with a range of rotation up to 90 degrees.
Damper
Position:
System Pressure — This variable displays the static system
pressure through an integrated pressure sensor in increments of
0.1 in. wg.
System Pressure: Display Units
System Mode — This variable displays the master zone con-
troller's system mode as the bypass controller's system mode
except when the bypass controller is in its commissioning
mode or the network communication fails. In bypass commis-
sioning mode, the system mode will display BPCOMMIS to in-
dicate the bypass controller is in its own commissioning mode.
If the network communication between the bypass controller
and the Linkage Coordinator zone controller fails, the system
mode will display LOCAL.
System Mode:
Configuration Tables —
tains the following configuration tables: Alarm Configuration
(ALMCONF), Bypass Controller Configuration (BP_SERV),
Device Configuration (BYPASS), Language Configuration
(LNGCONF), Duct Sensor Configuration (SEN_SERV), and
Set Point Configuration (SETPOINT).
ALARM CONFIGURATION TABLE — The Alarm Con-
figuration Table (ALMCONF) contains decisions used to con-
figure the alarm settings for the zone controller. This includes
realarm time and routing of alarms. See Table 9.
STATUS
UNITS
11010000
ROUTING
10
min
RETIME
15
Display Units
F (C)
Default Value
–40.0
Display Range
–40.0 to 245.0
Forcible
Yes
Display Units
% open
Default Value
0
Display Range
0 to 100
Forcible
No
in. wg
Default Value
0.00
Display Range
0.00 to 2.00
Forcible
No
Display Units
ASCII
Display Range
HEATING, COOLING,
FREE COOL,
PRESSURE, EVAC,
ZONE_BAL, OFF,
BPCOMMIS, LOCAL
Forcible
No
The bypass controller con-
FORCE
NAME
DUCT_TMP
DMP_POS
SP_SENSR
SYS_MODE
NAME
Advertisement
Table of Contents
