Bypass Controller Reset; Alarm Options; Equipment Priority; Communication Failure Retry Time - Carrier 33CS Installation, Service And Instructions

4. Check the wiring from the PS pressure sensor to the damper
actuator printed circuit board. If improperly wired the by-
pass controller will be unable to communicate with the
PS pressure sensor. This will result in an HF08 error. To
check the wiring:
a. Remove the PS pressure sensor from location and wire
it directly to the factory supplied 6-wire harness. The
harness should be connected to the damper actuator
printed circuit board.
b. If the HF08 error disappears, then the field-wiring or
connections should be checked.
c. If the HF08 error still appears, the damper circuit board
or the PS pressure sensor may have failed.
d. To determine the defective component, replace the com-
ponents one at a time until the problem is isolated.

Bypass Controller Reset

stantly verifies operation and the information it utilizes. When
it finds a fault in a specified area, the bypass controller resets
using the bypass controller initialization display.
The bypass controller will reset when it finds fault in the
following areas:
• The ability of the microprocessor to properly operate the
programs used by the bypass controller is verified to pre-
vent improper response to zone and system conditions.
• The level of power used by the bypass damper (24 vac)
and by the bypass controller (10 vdc) is checked to pre-
vent improper operation by micro-electronic components
during low power conditions.
• The ability of the bypass controller to communicate with
the bypass damper to prevent incorrect operation of the
bypass damper.
The bypass controller also monitors the following:
• Each piece of information received by the bypass control-
ler is verified to eliminate the use of incorrect data.
• Each portion of information stored by the bypass control-
ler is verified to eliminate the use of incorrect data.
When possible, system communication and data storage
faults are corrected by the bypass controller. When correc-
tions cannot be made the information is regarded as invalid
and not utilized.

ALARM OPTIONS

The alarms options of the bypass controller are respon-
sible for detecting alarms and transmitting them to the CCN
(Carrier Comfort Network). A specified device (such as the
Building Supervisor) on the CCN records the alarm mes-
sages from all other devices and uses this data to produce
alarm messages. The bypass controller detects successful trans-
mission of the alarm and will retry if there is a communi-
cation failure. If the alarm is successfully transmitted, the
bypass controller will reset the alarm.

Equipment Priority

— The Equipment Priority func-
tion tells the error recording device the priority of the device
that is sending the alarm. The priority determines which alarms
are shown first and which alarms are deleted when the alarm
memory is full. To set the option, configure category 11,
option 1. The range is 0 to 7, where 7 is the highest priority.
The default value is 7 (bypass controller priority). It is rec-
ommended not to change this value.

Communication Failure Retry Time

munication Failure Retry Time option configures how long
the bypass controller will wait before re-sending an alarm
that was not received by a device configured as an acknowl-
edger. The option is configured in category 11, option 2. The
range of acceptable values is 1 to 240 minutes. The default
is 10 minutes.
— The bypass controller con-
— The Com-

Re-Alarm Time

— The Re-Alarm Time option config-
ures how long the bypass controller will wait before re-
sending an alarm after the alarm message has been received
by a device and the alarm persists. When the condition re-
turns to normal, the alarm will no longer be sent. The option
is configured in category 11, option 3. The range of accept-
able values is 1 to 255 minutes. The default is 30 minutes.
A value of 255 disables this feature.

Alarm Routing Control

trol option determines which devices on the CCN will re-
ceive and process the alarm information. This option cannot
be configured from the bypass controller. The default value
is 11000000. This value sends/marks alarms for the CCN. A
value of 10000000 sends alarms to the Building Supervisor.
A value of 01000000 sends alarms to the Auto-Dial gate-
way. A value of 00010000 sends alarms to the printer inter-
face. A value of 00000000 disables all alarms going out on
the CCN. The option is configured through Carrier network
access software.

Alarm System Name

tion identifies the alarm system on the CCN. This option can-
not be configured from the bypass controller. The default name
is 33CSBC. The option is configured through Carrier net-
work access software.

ALARM DESCRIPTION

This section describes the major alarm types that are avail-
able within the system.
The section describes each alarm in detail: what control-
lers it works with; the sensors required for the alarm to be
activated; and how the alarm is configured, disabled, and nor-
malized. The description provides information on how the
alarm is applied and the necessary hardware required for proper
operation.

Indoor-Air Quality Status Alarm

Table 5 for IAQ alarm specifications.
Table 5 — IAQ (Indoor-Air Quality)
FUNCTION
Controllers
Sensor Required
Sensor Wiring
Input
Output
Category/Option
Configuration
Values
Configuration
Increments
Associated
Functions
LEGEND
IAQ — Indoor Air Quality
SE — System Error
18
— The Alarm Routing Con-
— The Alarm System Name op-
— Refer to
Status Alarm
DESCRIPTION
Monitor Thermostat, Zone Controller,
Bypass Controller
IAQ (CO ) Sensor
2
Pins 6 and 7 of Relay Board or Wire to
Damper Board
Closed contact when level exceeded.
SE10
14.1 System IAQ Sensor
14.2 IAQ Pressure Set Point
14.3 IAQ Alarm Delay
14.1 — ON
14.2 — 0.0 in. wg
14.3 — 0 minutes
14.2 — 0.1 in. wg
14.3 — 1 minute
None