Single Duct Air Terminal Zone Controller
VAV Fan Terminal Zone Controller
Secondary Terminal Zone Controller
Installation, Start-Up and
Configuration Instructions
Part Numbers 33ZCFANTRM, 33ZCVAVTRM, 33ZCSECTRM
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Zone Controller Hardware . . . . . . . . . . . . . . . . . . . . . . . . 2
Field-Supplied Hardware . . . . . . . . . . . . . . . . . . . . . . . . . 2
• SPACE TEMPERATURE SENSOR
• PRIMARY AIR TEMPERATURE SENSOR
• SUPPLY AIR TEMPERATURE (SAT) SENSOR
• RELATIVE HUMIDITY SENSOR
• INDOOR AIR QUALITY (CO2) SENSOR
Mount Zone Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
• LOCATION
• MOUNTING
Connect the Power Transformer . . . . . . . . . . . . . . . . . . 7
Connect Airflow Pickups . . . . . . . . . . . . . . . . . . . . . . . . . 7
Install Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
• SPACE TEMPERATURE SENSOR INSTALLATION
• PRIMARY AIR TEMPERATURE SENSOR
INSTALLATION
• SUPPLY AIR TEMPERATURE (SAT) SENSOR
INSTALLATION
• INDOOR AIR QUALITY SENSOR INSTALLATION
• HUMIDITY SENSOR (WALL-MOUNTED)
INSTALLATION
Remote Occupancy Contact. . . . . . . . . . . . . . . . . . . . . 26
Connect the Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Modulating Baseboard Hydronic Heating . . . . . . . . 26
Connect the CCN Communication Bus . . . . . . . . . . 26
• COMMUNICATION BUS WIRE SPECIFICATIONS
• CONNECTION TO THE COMMUNICATION BUS
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-31
Perform System Check-Out . . . . . . . . . . . . . . . . . . . . . 29
Network Addressing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Initial Operation and Test. . . . . . . . . . . . . . . . . . . . . . . . 30
Airflow Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Fan and Heat Configuration and Test. . . . . . . . . . . . 30
CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-50
Points Display Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Modify Controller Configuration. . . . . . . . . . . . . . . . . 32
• ALARM LIMIT CONFIGURATION SCREEN
• CONTROLLER IDENTIFICATION SCREEN
• HOLIDAY CONFIGURATION SCREENS
• LINKAGE COORDINATOR CONFIGURATION
SCREEN
• OCCUPANCY CONFIGURATION SCREEN
• SET POINT SCREEN
Service Configuration Selection Screen. . . . . . . . . 37
• AIRFLOW SERVICE CONFIGURATION SCREEN
• TERMINAL SERVICE CONFIGURATION SCREEN
• OPTIONS SERVICE CONFIGURATION SCREEN
• SECONDARY DAMPER SERVICE
CONFIGURATION SCREEN
Maintenance Table Menu Screen . . . . . . . . . . . . . . . . 43
• LINKAGE MAINTENANCE TABLE
• OCCUPANCY MAINTENANCE TABLE
• ZONE AIR BALANCE/COMMISSIONING TABLE
• ZONE MAINTENANCE TABLE
SAFETY CONSIDERATIONS
SAFETY NOTE
Air-handling equipment will provide safe and reliable
service when operated within design specifications. The
equipment should be operated and serviced only by
authorized personnel who have a thorough knowledge
of system operation, safety devices and emergency
procedures.
Good judgement should be used in applying any manufacturer’s instructions to avoid injury to personnel or damage to equipment and property.
Disconnect all power to the unit before performing maintenance or service. Unit may automatically start if power is
not disconnected. Electrical shock and personal injury
could result.
If it is necessary to remove and dispose of mercury contactors in electric heat section, follow all local, state, and federal laws regarding disposal of equipment containing
hazardous materials.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111
Catalog No. 533-355
Printed in U.S.A.
Form 33ZC-1SI
Pg 1
303
11-99
Replaces: New
Book 1
4
Tab 11a 13a
GENERAL
the SPT sensor. The Network Service Tool can be used to adjust set points, set operating parameters, and fully configure the
zone controller or any device on the system.
The zone controller is a single duct, fan powered, Variable
Air Volume (VAV) terminal control with a factory-integrated
controller and actuator. The zone controller maintains precise
temperature control in the space by operating the terminal fan
and regulating the flow of conditioned air into the space. Buildings with diverse loading conditions can be supported by controlling reheat or supplemental heat.
The VAV Fan Terminal Zone Controller (33ZCFANTRM)
provides dedicated control functions for series fan or parallel
fan powered terminals, single duct terminals with 3 stages of
heat, or as a primary controller for dual duct or zone pressure
control applications.
The Single Duct Air Terminal Zone Controller
(33ZCVAVTRM) provides dedicated control functions for single duct terminals with modulating heat or up to 2 stages of
heat.
When the VAV Fan Terminal Zone Controller is used in
conjunction with a secondary terminal and the 33ZCSECTRM
secondary terminal zone controller, either dual duct or zone
pressurization applications can be supported.
Carrier’s Linkage system is an integrated combination of
Carrier Comfort Network (CCN) controllers for use with Single Duct air terminals and VAV Fan Powered terminals. The
Single Duct air terminal and VAV Fan terminal zone controllers are part of the Carrier ComfortID system.
Devices manufactured by Carrier which have Product Integrated Controls on the same communication bus as the zone
controller, air handlers (such as the 39L,T), or large rooftop
units do not require an external controller to function as part of
a Carrier linkage system. These air handlers or large rooftop
units feature factory-installed Product Integrated Control (PIC)
controllers that are directly compatible with the system. Consult your local Carrier representative for the complete list of
compatible air handlers. The Comfort System AirManager
(CSAM) or the CC6400 supports linkage for non-Carrier devices or air handlers. Figure 1 shows an example of a Carrier
linkage system.
Zone Controller Hardware — The zone controller
consists of the following hardware:
• terminal control module
• torque-limiting damper actuator
• airflow transducer (velocity sensor)
• plastic enclosure
• one no. 8 x 1/2-in. sheet metal screw (to prevent zone
controller rotation)
NOTE: A filter is not provided for the airflow transducer.
For installations on systems with a high degree of impurities, an air filter can be purchased and installed on the transducer high pressure pickup.
Figure 2 shows the zone controller physical details.
Figures 3-5 show the 3 different types of zone controllers.
Field-Supplied Hardware — Each zone controller requires the following field-supplied components to complete its
installation:
• air terminal unit
• space temperature sensor
• transformer — 24 vac, 40 va
• two no. 10 x 1/2-in. sheet metal screws (to secure SAT
sensor to duct, if required)
• two no. 6-32 x 5/8-in. screws (to mount SPT sensor base
to electrical box)
• contactors (if required for fan or electric heat)
• supply air temperature sensor (required for terminal with
ducted heat)
• indoor air quality sensor (if required)
• relative humidity sensor (if required)
• one SPST (for each stage of electric heat, not required
for Carrier fan terminals)
• valve and actuator for hot water heat (if required)
• delta pressure airflow pickup
NOTE: When selecting an airflow pickup, it is the
designer's responsibility to select a sensor that provides the
desired output at the design airflow.
• wire
• polyethylene tubing (for pressure pickup)
• bushings (required when mounting SAT sensor in a duct
6-in. or less in diameter)
• primary air temperature sensor (if required)
SPACE TEMPERATURE SENSOR — Each zone controller requires a field-supplied Carrier space temperature sensor.
There are two sensors available for this application:
• 33ZCT55SPT, Space Temperature Sensor with Override
Button
• 33ZCT56SPT, Space Temperature Sensor with Override
Button and Set Point Adjustment
PRIMARY AIR TEMPERATURE SENSOR — A fieldsupplied, primary air temperature (PAT) sensor (part number
33ZCSENPAT) is used on a zone controller which is functioning as a Linkage Coordinator for a non CCN/Linkage compatible air source.
SUPPLY AIR TEMPERATURE (SAT) SENSOR — On
stand-alone applications or applications with ducted heat, the
zone controller must be connected to a field-supplied supply air
temperature (SAT) sensor (part number 33ZCSENSAT) to
monitor the temperature of the air delivered by the air terminal.
The zone controller will maintain the air temperature below the
maximum air temperature in ducted heating applications.
INSTALLATION
General — The zone controller is a microprocessor-based
direct digital control (DDC) controller for variable air volume
(VAV) air terminals. It can be retrofitted on units manufactured
by Carrier or other manufacturers to provide pressureindependent VAV control.
Each zone controller has the ability to function as a linkage
coordinator for systems with up to 128 zones. As a linkage coordinator, a zone controller will retrieve and provide system information to the air handling equipment and other zone controllers. A zone controller can function as a stand alone device
by installing a primary supply air sensor.
The zone controller monitors differential pressure from an
airflow pickup (or a pair of pickups) mounted on the terminal
box. It compares the resulting signal to an airflow set point in
order to provide pressure-independent control of the air passing
through the terminal.
The zone controller is connected to a wall-mounted, fieldsupplied, space temperature sensor (SPT) in order to monitor
zone temperature changes and satisfy zone demand.
On stand-alone applications or applications with heat, the
zone controller must be connected to a field-supplied supply air
temperature (SAT) sensor to monitor the temperature of the air
delivered by the air terminal.
Carrier’s Network Service Tool can be connected to the system at the SPT sensor if CCN communication wiring is run to
2
CCN
SYSTEM
MONITORING
SOFTWARE
CCN PRIMARY BUS (BUS 0)
FULLY
COMPATIBLE
AIR HANDLER
CC6400 OR CSAM
EQUIPPED
NON-CCN
AIR HANDLER
BRIDGE
(RECOMMENDED)
SECONDARY BUS
COMFORTID
EQUIPPED
AIR TERMINAL
(1 OF UP TO 128)
ADDRESSED
SEQUENTIALLY
DATA
COLLECTION
OPTION
LEGEND
CCN — Carrier Comfort Network
CSAM — Comfort System AirManager
Fig. 1 — Typical Carrier Linkage System
3
RH/IAQ
US
GND
FAN AC
FAN SECFLOW
J7
24VAC
N/A
HEAT3
DMPPOS
GND
3
TEST
®
LISTED
94D5
TENP IND &
REG. EQUIP.
1
1
2
1
REMOTE
+
- G
CW
COM
COW
Class 2 Supply
24VAC/DC
50/60 Hz
3VA 2W
yel
blk
red
G -
J1
24VAC
1
+
NOTE: Actuator clamp accepts dampers
shafts with the following characteristics:
Round — 1/4-in. to 5/8-in.
(6 to 16 mm)
Square — 1/4-in. to 7/16-in.
(6 to 11 mm)
Damper shaft must be a minimum of 1.5-in.
(38 mm) long.
Fig. 2 — Zone Controller Physical Details (33ZCFANTRM Shown)
3. Press the release button on the actuator and rotate the
clamp in the same direction that was required to close
the damper in Step 2.
4. Press the release button on the actuator and rotate the
actuator back one position graduation. Release the button and lock the actuator in this position.
5. Mount the zone controller to the terminal by sliding
the damper shaft through the actuator clamp assembly.
Secure the zone controller to the duct by installing
the screw provided through the grommet in the antirotation tab. Be sure the floating grommet is in the
center of the slot. Failure to center the grommet may
cause the actuator to stick or bind.
6. Tighten the actuator clamp assembly to the damper
shaft. Secure by tightening the two 10-mm nuts.
7. If the damper has less than 90 degrees of travel
between the fully open and fully closed positions, then
a mechanical stop must be set on the actuator. The
mechanical stop prevents the damper from opening
past the maximum damper position. To set the
mechanical stop, perform the following procedure:
a. Press the actuator release button and rotate the
damper to the fully open position.
b. Using a Phillips screwdriver, loosen the appropriate stop clamp screw.
c. Move the stop clamp screw so that it contacts the
edge of the cam on the actuator. Secure the stop
clamp screw in this position by tightening the
screw.
8. Verify that the damper opens and closes. Press the
actuator release button and rotate the damper. Verify
that the damper does not rotate past the fully open
position. Release the button and lock the damper in the
fully open position.
R E L A T I V E H U M I D I T Y S E N S O R — The
33AMSENRHS000 relative humidity sensor is required for
zone humidity control (dehumidification).
NOTE: The relative humidity sensor and CO2 sensor cannot
be used on the same zone controller.
INDOOR AIR QUALITY (CO2) SENSOR — An indoor air
quality sensor is required for optional demand control ventilation. The CGCDXSEN002A00 CO2 Sensor is an indoor,
wall mounted sensor with an LED display. The
CGCDXSEN003A00 CO2 Sensor is an indoor, wall mounted
sensor without display.
NOTE: The relative humidity sensor and CO2 sensor cannot
be used on the same zone controller.
Mount Zone Controller
LOCATION — The zone controller must be mounted on the
air terminal’s damper actuator shaft. For service access, there
should be at least 12 in. of clearance between the front of the
zone controller and adjacent surfaces. Refer to Fig. 6.
MOUNTING — Perform the following steps to mount the
zone controller:
1. Visually inspect the damper and determine the direction in which the damper shaft moves to open the
damper — clockwise (CW) or counterclockwise
(CCW). Refer to Fig. 7.
If the damper rotates CCW to open, it does not require
any configuration changes.
If the damper rotates CW to open, then the damper
actuator logic must be reversed. This is done in the
software when performing system start-up and damper
calibration test. Do not attempt to change damper rotation by changing wiring. This will upset the damper
position feedback potentiometer readings.
2. Rotate the damper shaft to the fully closed position.
Note direction of rotation.
801
ANTIROTATION
TAB
wht
HIGH
PRESSURE
TUBING
ROUTING
→
3
6
1 2 3
ora
blu
1
CCW
COM
CW
HEAT1
24VAC
HEAT2
COM
ACTUATOR
RELEASE
BUTTON
+
J6
HIGH
5K
WIP
GROMMET
GND
PAT
3
NEMA 2
T56
J3
3art Number: 33ZCFANTRM
S/N:
Bus#:
Element#:
Unit#:
SAT
3
LR 92800
J2A CCN
1
35 in-lb (4 Nm)
80...110s
3
®
GND
ZONE Controller
J8
SEC DMP
HF23BJ042
Made in Switzerland
by Belimo Automation
GND
SRVC
1
0
+10V
SPT
- G
1 2
J6
MECHANICAL
STOP
+24V
J2B LEN
1
C
16
15
LOW PRESSURE
TUBING ROUTING
J4
ACTUATOR
CLAMP
ASSEMBLY
LOW
DAMPER
SHAFT
4
16
SPT
GND
1 2
J6
FAN AC
FAN SECFLOW
J7
24VAC
N/A
HEAT3
SAT
+10V
T56
DMPPOS
GND
GND
PAT
TEST
®
1
2
1
1
Unit#:
Class 2 Supply
24VAC/DC
50/60 Hz
3VA 2W
→
J4
SECFLOW
+10V
DMPPOS
1
0
GND
TEST
®
ZONE Controller
SPT
GND
SAT
T56
GND
PAT
REMOTE
2
1
1
®
GND
+24V
1
HF23BJ042
J3
Class 2 Supply
24VAC/DC
50/60 Hz
3VA 2W
blu
ora
blk
red
→
J1
1
6
24VAC
1 2 3
WIP
yel
1
3
COM
CCW
COM
CW
HEAT1
24VAC
HEAT2
J6
HIGH
5K
- G
Bus#:
Element#:
Unit#:
+
3
NEMA 2
+
- G
Part Number: 33ZCVAVTRM
S/N:
3
LR 92800
J2A CCN
35 in-lb (4 Nm)
80...110s
LISTED
94D5
TENP IND &
REG. EQUIP.
G -
J1
RH/IAQ
US
C
16
LOW
Fig. 3 — VAV Fan Terminal Zone Controller
GND
Made in Switzerland
by Belimo Automation
24VAC
1
wht
J2B LEN
red
SRVC
blk
+
+
G -
ora
15
blu
6
1 2 3
WIP
yel
1
3
COM
CCW
COM
CW
HEAT1
24VAC
HEAT2
J6
HIGH
5K
+
SRVC
J3
LISTED
94D5
TENP IND &
REG. EQUIP.
+
3
S/N:
Bus#:
Element#:
NEMA 2
CW
COM
COW
J2B LEN
3
Part Number: 33ZCFANTRM
- G
LR 92800
J2A CCN
1
35 in-lb (4 Nm)
80...110s
J8
SEC DMP
ZONE Controller
®
Made in Switzerland
by Belimo Automation
REMOTE
GND
3
HF23BJ042
- G
1
GND
3
1
0
+24V
RH/IAQ
US
C
J4
LOW
15
—
wht
Fig. 4 — Single Duct Air Terminal Zone Controller
5
801
6
US
J1
LOW
®
C
D
OUT
FLOW
TPUT
+10V
OV
CW
1
0
GND
COM
1
®
CCW
ZONE Controller
HF23BJ042
MMON
CW
Made in Switzerland
by Belimo Automation
35 in-lb (4 Nm)
80...110s
LR 92800
Part Number: 33ZCSECTRM
S/N:
NEMA 2
UL
Unit#:
24VAC/DC
50/60Hz
3VA
2W
5K
J2
COM
WIP
yel
blu
ora
1
2
3
blk
red
wht
1
CCW
COM
CW
N/A
N/A
N/A
Class 2 Supply
HIGH
LISTED
94D5
TEMP. IND. &
REG. EQUIP.
6
Fig. 5 — Secondary Terminal Zone Controller
ALLOW 12” CLEARANCE FOR SERVICE
ACCESS TO CONTROL BOX
3” REF.
ZONE
CONTROLLER
END VIEW INLET
Fig. 6 — Service Clearance for Zone Controller Mounting
6
J1
NOTE: Do not run sensor or communication wiring in the
same conduit with line-voltage wiring.
NOTE: An accessory conduit box (part no. 33ZCCONBOX) is
available for conduit wiring connections to the zone controller.
Perform the following steps to connect the power
transformer:
1. Install the field-supplied transformer in an electrical
enclosure that conforms to NEC and local codes.
2. Connect 24 vac from the transformer as shown in the
applicable wiring diagram (Fig. 8A-J).
AIR
FLOW
CW TO OPEN, CCW TO CLOSE
Connect Airflow Pickups — The zone controller determines velocity pressure by obtaining the difference between
high and low duct pressure from two airflow pickups. The
pickups are connected to barb fittings on the zone controller
with 1/4-in. polyethylene tubing. All piping for this purpose
must conform to local codes.
Figure 9 indicates the positions of the two barb fittings.
Perform the following steps to install and connect the airflow pickups:
1. Select a location on the air handler’s supply air duct
where the airflow pickups will be installed. The location should be one where there are at least three duct
diameters of straight duct upstream of the pickups. If
this requirement is not met, stable airflow measurements may not be possible.
2. Mount the field-supplied airflow pickup(s) in the duct,
following the manufacturer's directions. Two individual pickups may be used, one for high pressure airflow
and one for low pressure airflow. A dual pickup, which
combines the two functions, may also be used. When
using individual pickups, make sure that the one for
high pressure airflow faces upstream, in the direction
the air is coming from, and the one for low pressure
airflow faces downstream, in the direction the air is
going to.
3. Use field-supplied 1/4-in. tubing (rated for the application) to connect the high pressure airflow pickup to
barb fitting P1 on the pressure transducer. At the zone
controller, the P1 fitting is on the side with the filter
installed. Be careful to avoid sharp bends in the tubing,
because malfunctions may occur if the tubing is bent
too sharply. Use at least 2 ft of tubing for reading
stability.
4. Use field-supplied 1/4-in. tubing (rated for the application) to connect the low pressure airflow pickup to
barb fitting P2 on the pressure transducer. Be careful to
avoid sharp bends in the tubing, because malfunctions
may occur if the tubing is bent too sharply. Use at least
2 feet of tubing for stability.
AIR
FLOW
CCW TO OPEN, CW TO CLOSE
Fig. 7 — Damper Configuration
Connect the Power Transformer — An individual,
field-supplied, 24 vac power transformer is recommended for
each zone controller. If multiple zone controllers are powered
from one power transformer (100 va maximum for UL [Underwriters’ Laboratories] Class 2 conformance), maintain polarity
on the power input terminals. All transformer secondaries are
required to be grounded. Use only stranded copper conductors
for all wiring to the zone controller. Wiring connections must
be made in accordance with NEC (National Electrical Code)
and local codes. Ground the transformer at the transformer location. Provide an 18-gage, green, chassis ground wire at the
terminal.
The power supply is 24 vac ± 10% at 40 va (50/60 Hz).
For 33ZCVAVTRM zone controllers, the power requirement sizing allows for accessory water valves and for electric
heat contactor(s). Water valves are limited to 15 va on both
two-position and modulating hot water. The electric heat contactor(s) are limited to 10 va (holding) each.
For 33ZCFANTRM zone controllers, the power requirement sizing allows for accessory water valves and for the fan
contactor. Water valves are limited to 8 va on both two-position
and modulating hot water. The fan contactor is limited to
11 va (holding).
NOTE: If a water valve or electric heat contactor exceeds
these limits, or external contactors are required for electric
heat, then it is recommended a 60 va transformer be used.
The maximum rating for any output is 20 va.
7
303
8
CCN
SAT
SPT
TRAN
Yel
—
—
—
—
Ora
Blk
com
Red
24VAC/DC
50/60Hz
3VA 2W
→
Wht
W
Hi
B
R
HEAT1 24VAC HEAT2
R
W
B
(GND)
(-)
REMOTE
PAT
GND
T56
SAT
(+)
GND
N/A
GND
Or
DMPPOS
Bl
+10V
Y
GND
SPT
+24V
Fig. 8A — Zone Controller Wiring — Single Duct Air Terminal, Cooling Only
35 in-lb(4Nm)
80...110s
1
LEGEND
Carrier Comfort Network
Supply-Air Temperature Sensor
Space Temperature Sensor
Transformer
Field Wiring
Factory Wiring
Blu
Made in Switzerland
By Belimo Automation
HF23BJ042
0
Low
SECFLOW
GND
RH/IAQ
TERMINAL
GROUND
TRANSFORMER
GROUND
TRAN
24 VAC
Line Voltage
CCN comunications
CCN comunications
Not used
SAT
SPT
9
303
—
—
—
—
—
LEGEND
Carrier Comfort Network
Hot Water Valve
Supply-Air Temperature Sensor
Space Temperature Sensor
Transformer
Field Wiring
Factory Wiring
Yel
Blu
Made in Switzerland
By Belimo Automation
→
Ora
HF23BJ042
0
Red
Wht
HWV
W
Hi
Low
B
R
HEAT1 24VAC HEAT2
R
W
B
(GND)
(-)
REMOTE
PAT
GND
T56
SAT
GND
SPT
+24V
(+)
GND
N/A
GND
Or
DMPPOS
Bl
+10V
Y
SECFLOW
GND
RH/IAQ
SAT
SPT
Line Voltage
TRANSFORMER
GROUND
TRAN
24 VAC
CCN comunications
CCN comunications
Not used
TERMINAL
GROUND
Fig. 8B — Zone Controller Wiring — Single Duct Air Terminal, Two-Position Hot Water Heat
Blk
com
24VAC/DC
50/60Hz
3VA 2W
35 in-lb(4Nm)
80...110s
1
*Normally open or normally closed valve may
be used.
CCN
HWV
SAT
SPT
TRAN
303
10
—
—
—
—
—
LEGEND
Carrier Comfort Network
Hot Water Valve
Supply-Air Temperature Sensor
Space Temperature Sensor
Transformer
Field Wiring
Factory Wiring
Yel
Blu
Ora
Made in Switzerland
By Belimo Automation
HF23BJ042
0
→
Red
Wht
HWV
COM
CL
W
Hi
Low
B
R
HEAT1 24VAC HEAT2
R
W
B
(GND)
(-)
REMOTE
PAT
GND
T56
SAT
GND
SPT
+24V
(+)
GND
N/A
GND
Or
DMPPOS
Bl
+10V
Y
SECFLOW
GND
RH/IAQ
SAT
SPT
Line Voltage
TRANSFORMER
GROUND
TRAN
24 VAC
CCN comunications
CCN comunications
Not used
TERMINAL
GROUND
Fig. 8C — Zone Controller Wiring — Single Duct Air Terminal, Modulating Hot Water Heat
Blk
com
24VAC/DC
50/60Hz
3VA 2W
35 in-lb(4Nm)
80...110s
1
*Required for some spring return modulating
valves.
CCN
HWV
SAT
SPT
TRAN
OP
11
801
CCN
H
HWV
SAT
SPT
TRAN
—
—
—
—
—
—
Yel
Blu
Ora
Blk
com
Red
24VAC/DC
50/60Hz
3VA 2W
35 in-lb(4Nm)
80...110s
1
Wht
H2
W
Hi
Low
H1
B
R
HEAT1 24VAC HEAT2
R
W
B
(GND)
(–)
REMOTE
PAT
GND
T56
SAT
GND
SPT
+24V
(+)
GND
N/A
GND
Or
DMPPOS
Bl
+10V
Y
SECFLOW
GND
RH/IAQ
→ Fig. 8D — Zone Controller Wiring — Single Duct Air Terminal, Staged Electric Heat (2 Stages)
Made in
Switzerland
By Belimo
Automation
HF23BJ042
0
LEGEND
Carrier Comfort Network
Heater Relay
Hot Water Valve
Supply-Air Temperature Sensor
Space Temperature Sensor
Transformer
Field Wiring
Factory Wiring
TRAN
Line
Voltage
TERMINAL
GROUND
TRANSFORMER
GROUND
24 VAC
CCN
comunications
CCN
comunications
Not Used
SAT
SPT
303
12
Yel
Blu
Made in Switzerland
By Belimo Automation
→
Ora
HF23BJ042
0
H3
Red
Wht
W
Hi
Low
H1
B
R
HEAT1 24VAC HEAT2
LEGEND
Carrier Comfort Network
Heater Relay
Supply-Air Temperature Sensor
Space Temperature Sensor
Transformer
Field Wiring
Factory Wiring
Second
Damper
CCW
COM
CW
Heat3
Not Used
24 VAC
FAN
FAN AC
B
W
R
GND
N/A
GND
Or
DMPPOS
Bl
+10V
Y
SECFLOW
GND
RH/IAQ
B
W
R
REMOTE
PAT
GND
T56
SAT
GND
SPT
+24V
TERMINAL
GROUND
TRANSFORMER
GROUND
TRAN
24 VAC
Line Voltage
CCN comunications
CCN comunications
Not used
SAT
SPT
NOTE: The VAV fan terminal zone controller is used on single duct air
terminals with 3 stages of electric heat.
—
—
—
—
—
Fig. 8E — Zone Controller Wiring — Single Duct Air Terminals, Staged Electric Heat (3-Stage)
Blk
com
24VAC/DC
50/60Hz
3VA 2W
35 in-lb(4Nm)
80...110s
1
H2
CCN
H
SAT
SPT
TRAN
13
801
Yel
Blu
Made in Switzerland
By Belimo Automation
Ora
HF23BJ042
0
HEAT1 24VAC HEAT2
(–)
(GND)
(+)
GND
B
W
R
REMOTE
PAT
GND
T56
Fig. 8F — Zone Controller Wiring — Fan Powered Terminals, Cooling Only
R
CCW
COM
CW
Heat3
Not
Used
N/A
GND
Or
DMPPOS
Bl
SAT
GND
SPT
+24V
→
Wht
B
Second
Damper
FAN
24 VAC
FAN
AC
+10V
Y
SECFLOW
GND
RH/IAQ
Fan Motor
M
Red
W
Hi
Low
Fan
Contactor
Blk
com
24VAC/DC
50/60Hz
3VA 2W
35 in-lb(4Nm)
80...110s
1
LEGEND
CCN — Carrier Comfort Network
SPT
— Space Temperature Sensor
TRAN — Transformer
Field Wiring
Factory Wiring
TRAN
Line
Voltage
TERMINAL
GROUND
TRANSFORMER
GROUND
24 VAC
CCN
comunications
CCN
comunications
Not Used
SPT
Line
Voltage
801
14
—
—
—
—
—
0
Yel
Blu
Made in Switzerland
By Belimo Automation
R
HEAT1 24VAC HEAT2
CCW
COM
(-)
(GND)
(+)
GND
N/A
DMPPOS
Bl
GND
Or
B
W
R
REMOTE
PAT
GND
T56
SAT
TRAN
Line
Voltage
CCN
comunications
TRANSFORMER
GROUND
TERMINAL
GROUND
Line
Voltage
SPT
CCN
comunications
Not Used
24 VAC
Fig. 8G — Zone Controller Wiring — Fan Powered Terminals, Two-Position Hot Water Heat
Wht
B
Second
Damper
CW
Heat3
Not Used
24 VAC
FAN
FAN AC
SAT
GND
SPT
+24V
→
Red
W
Hi
Low
+10V
Y
SECFLOW
GND
RH/IAQ
Fan Motor
M
Blk
HWV
Fan Contactor
Ora
com
24VAC/DC
50/60Hz
3VA 2W
35 in-lb(4Nm)
80...110s
1
LEGEND
Carrier Comfort Network
Hot Water Valve
Supply-Air Temperature Sensor
Space Temperature Sensor
Transformer
Field Wiring
Factory Wiring
HF23BJ042
CCN
HWV
SAT
SPT
TRAN
—
—
—
—
—
—
LEGEND
Carrier Comfort Network
Hot Water Valve
Primary Air Temperature Sensor
Supply-Air Temperature Sensor
Space Temperature Sensor
Transformer
Field Wiring
Factory Wiring
COM
CL
HWV
OP
15
Yel
Blu
Made in Switzerland
By Belimo Automation
HF23BJ042
0
HEAT1 24VAC HEAT2
B
W
R
REMOTE
PAT
GND
T56
PAT*
SAT
TRAN
Line
Voltage
CCN
comunications
TRANSFORMER
GROUND
TERMINAL
GROUND
Line
Voltage
SPT
CCN
comunications
Not Used
24 VAC
Fig. 8H — Zone Controller Wiring — Fan Powered Terminals, Modulating Hot Water Heat
Wht
R
(-)
(GND)
(+)
GND
N/A
GND
Or
Bl
DMPPOS
SAT
GND
SPT
+24V
→
Red
B
CCW
COM
CW
Heat3
Not
Used
24 VAC
FAN
FAN AC
+10V
Y
SECFLOW
GND
RH/IAQ
Fan Motor
M
Blk
W
Hi
Second
Damper
Fan Contactor
Ora
com
24VAC/DC
50/60Hz
2W
3VA
35 in-lb(4Nm)
80...110s
1
Low
*Required only on Linkage master if on a non-compatible air source.
CCN
HWV
PAT
SAT
SPT
TRAN
24V*
801
801
16
Blu
Ora
Blk
com
Red
24VAC/DC
50/60Hz
3VA 2W
35 in-lb(4Nm)
80...110s
1
Wht
H2
→
W
Hi
Low
H1
B
R
HEAT1 24VAC HEAT2
Second
Damper
CCW
COM
CW
Heat3
Not Used
24 VAC
FAN
FAN AC
(-)
(GND)
(+)
GND
N/A
GND
Or
DMPPOS
Bl
+10V
Y
SECFLOW
GND
RH/IAQ
B
W
R
REMOTE
PAT
GND
T56
SAT
GND
SPT
+24V
CCN
H
PAT
SAT
SPT
TRAN
Line
Voltage
LEGEND
— Carrier Comfort Network
— Heater Relay
— Primary Air Temperature Sensor
— Supply-Air Temperature Sensor
— Space Temperature Sensor
— Transformer
Field Wiring
Factory Wiring
TRAN
Line
Voltage
CCN
comunications
TRANSFORMER
GROUND
TERMINAL
GROUND
PAT*
SAT
SPT
CCN
comunications
Not Used
24 VAC
Fan Motor
M
Fig. 8I — Zone Controller Wiring — Fan Powered Terminals, Staged Electric Heat
*Required only on Linkage master if on a non-compatible air source.
Yel
Made in Switzerland
By Belimo Automation
HF23BJ042
0
H3
Fan Contactor
17
303
Blu
Ora
Blk
com
→
Red
24VAC/DC
50/60Hz
3VA 2W
35 in-lb(4Nm)
80...110s
1
LEGEND
CCN — Carrier Comfort Network
SPT
— Space Temperature Sensor
TRAN — Transformer
Field Wiring
Factory Wiring
Yel
Made in Switzerland
By Belimo Automation
HF23BJ042
0
B
R
HEAT1 24VAC HEAT2
CCW
COM
CW
Second
Damper
Heat3
Not Used
24 VAC
FAN
FAN AC
Fig. 8J — Zone Controller Wiring — Dual Duct Applications
Wht
W
Hi
Low
PRIMARY DAMPER — 33ZCFANTRM
PAT
GND
T56
SAT
GND
SPT
+24V
SPT
TRAN
LINE
VOLTAGE
TERMINAL
GROUND
TRANSFORMER
GROUND
24 VAC
CCN
comunications
CCN
comunications
Not Used
SHIELDED (CCN-TYPE) CABLE
B
W
R
REMOTE
SHIELD
(-)
(GND)
(+)
GND
N/A
+10V
Y
DMPPOS
Bl
GND
Or
SECFLOW
GND
RH/IAQ
18
Yel
Blu
Made in Switzerland
By Belimo Automation
HF23BJ042
0
Blk
Red
Wht
W
Hi
B
R
Y
Bl
Or
CCW
GND
CW
+10V
SECFLOW
GND
LEGEND
CCN — Carrier Comfort Network
SPT
— Space Temperature Sensor
TRAN — Transformer
Field Wiring
Factory Wiring
Fig. 8J — Zone Controller Wiring — Dual Duct Applications (cont)
Ora
com
24VAC/DC
50/60Hz
3VA
2W
35 in-lb(4Nm)
80...110s
1
Low
SECONDARY DAMPER — 33ZCSECTRM
→ Install Sensors
SPACE TEMPERATURE SENSOR INSTALLATION —
A space temperature sensor must be installed for each zone
controller. There are three types of SPT sensors available from
Carrier: the 33ZCT55SPT space temperature sensor with timed
override button, the 33ZCT56SPT space temperature sensor
with timed override button and set point adjustment and the
33ZCT58SPT with liquid crystal display. See Fig. 10.
The space temperature sensor is used to measure the building interior temperature and should be located on an interior
building wall. The sensor wall plate accommodates the NEMA
standard 2 x 4 junction box. The sensor can be mounted directly on the wall surface if accpectable by local codes.
Do not mount the sensor in drafty locations such as near air
conditioining or heating ducts, over heat sources such as baseboard heaters, radiators, or directly above wall mounted lighting dimmers. Do not mount the sensor near a window which
may be opened, near a wall corner, or a door. Sensors mounted
in these areas will have inaccurate and erratic sensor readings.
The sensor should be mounted approximately 5 ft from the
floor, in an area representing the average temperature in the
space. Allow at least 4 ft between the sensor and any corner
and mount the sensor at least 2 ft from an open doorway.
Install the sensor as follows (see Fig. 11):
1. Locate the two Allen type screws at the bottom of the
sensor.
2. Turn the two screws clockwise to release the cover
from the sensor wall mounting plate.
3. Lift the cover from the bottom and then release it from
the top fasteners.
4. Feed the wires from the electrical box through the
opening in the center of the sensor mounting plate.
5. Using two no. 6-32 x 1 mounting screws (provided
with the sensor), secure the sensor to the electrical box.
6. Use 20 gage wire to connect the sensor to the controller. The wire is suitable for distances of up to 500 ft.
Use a three-conductor shielded cable for the sensor
and set point adjustment connections. The standard
CCN communication cable may be used. If the set
point adjustment (slidebar) is not required, then an
unshielded, 18 or 20 gage, two-conductor, twisted pair
cable may be used.
The CCN network service jack requires a separate,
shielded CCN communication cable. Always use separate cables for CCN communication and sensor wiring. (Refer to Fig. 12 for wire terminations.)
7. Replace the cover by inserting the cover at the top of
the mounting plate first, then swing the cover down
over the lower portion. Rotate the two Allen head
screws counterclockwise until the cover is secured to
the mounting plate and locked in position.
8. For more sensor information, see Table 1 for thermistor resistance vs temperature values.
NOTE: Clean sensor with damp cloth only. Do not use
solvents.
Wiring the Space Temperature Sensor (33ZCT55SPT and
33ZCT56SPT) — To wire the sensor, perform the following
(see Fig. 12 and 13):
1. Identify which cable is for the sensor wiring.
2. Strip back the jacket from the cables for at least
3-inches. Strip 1/4-in. of insulation from each conductor. Cut the shield and drain wire from the sensor end
of the cable.
3. Connect the sensor cable as follows:
a. Connect one wire from the cable (RED) to the
SPT terminal on the controller. Connect the other
end of the wire to the left terminal on the SEN terminal block of the sensor.
b. Connect another wire from the cable (BLACK) to
the GND terminal on the controller. Connect the
other end of the wire to the remaining open terminal on the SEN terminal block.
c. On 33ZCT56SPT thermostats, connect the remaining wire (WHITE/CLR) to the T56 terminal
on the controller. Connect the other end of the
wire to the right most terminal on the SET terminal block.
d. In the control box, install a No. 6 ring type crimp
lug on the shield drain wire. Install this lug under
the mounting screw in the upper right corner of
the controller (just above terminal T1).
e. On 33ZCT56SPT thermostats install a jumper
between the two center terminals (right SEN and
left SET).
→ Wiring the Space Temperature Sensor (33ZCT58SPT) — The
T58 space temperature sensor is wired differently than other
conventional sensors. The T58 sends all its sensor information
through the CCN bus to the zone controller that is is associated
with. The SPT sensor wiring connections are not used. The T58
sensor does not need to be directly wired to the zone controller.
The T58 sensor may be powered by a separate 24-VAC power supply or may be connected to the J1 24 VAC power terminals on the zone controller. Be sure that the polarity of the power
supply connections are consistent. For multiple devices wired to
the same power supply, all positive (+) and negative (–) terminals should be wired in the same polarity.
Wire the T58 sensor to the CCN. Connect the CCN + terminal to the RED signal wire (CCN+). Connect the CCN – terminal to the BLACK signal wire (CCN–). Connect the GND
terminal to the WHITE/CLEAR signal wire (Ground). Refer to
the T58 sensor Installation Instructions for more information
on installing and wiring the sensor.
IMPORTANT: The T58 sensor must be configured with
the bus address and device type of the zone controller
before it will broadcast temperature to the zone controller. Refer to the T58 sensor Installation Instructions for
more information on configuring the sensor.
Wiring the CCN Network Communication Service Jack —
See Fig. 12, 13, and 14. To wire the service jack, perform the
following:
1. Strip back the jacket from the CCN communication
cable(s) for at least 3 inches. Strip 1/4-in. of insulation
from each conductor. Remove the shield and separate
the drain wire from the cable. Twist together all the
shield drain wires and fasten them together using an
closed end crimp lug or a wire nut. Tape off any
exposed bare wire to prevent shorting.
2. Connect the CCN + signal wire(s) (RED) to
Terminal 5.
3. Connect the CCN – signal wire(s) (BLACK) to
Terminal 2.
4. Connect the CCN GND signal wire(s) (WHITE/CLR)
to Terminal 4.
19
801
LOW PRESSURE
TUBING
0
H
1
HF23BJ042
L
Made in Switzerland
by Belimo Automation
35 in-lb (4 Nm)
80...110s
LR 92800
NEMA 2
LISTED
94D5
TEMP. IND. &
REG. EQUIP.
UL
Class 2 Supply
24VAC/DC
50/60Hz
3VA
2W
5K
COM
WIP
yel
blu
ora
1
2
3
blk
red
wht
HIGH PRESSURE
TUBING
NOTE: Minimum length of tubing is 2 ft.
Fig. 9 — Airflow Pickup Installation
Cool
Warm
NOTE: Dimensions are in inches.
Fig. 10 — Space Temperature Sensor
(P/N 33ZCT56SPT Shown)
Fig. 11 — Space Temperature Sensor and Wall
Mounted Humidity Sensor Mounting
20
1
2
3
4
5
6
RED(+)
WHT(GND)
BLK(-)
1
2
3
4
CCN COM
SEN
SEN
SW1
SW1
BLK (GND)
RED (SPT)
5
6
RED(+)
WHT(GND)
BLK(-)
SET
WHT
(T56)
BLK (GND)
RED (SPT)
SENSOR WIRING
CCN COM
SENSOR WIRING
JUMPER
TERMINALS
AS SHOWN
Cool
Fig. 12 — Space Temperature Sensor Wiring
(33ZCT55SPT)
Warm
Fig. 13 — Space Temperature Sensor Wiring
(33ZCT56SPT)
Table 1 — Thermistor Resistance vs Temperature Values for Space Temperature Sensor, Return-Air
Temperature Sensor, and Supply-Air Temperature Sensor
TEMP
(C)
–40
–35
–30
–25
–20
–15
–10
–5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
TEMP
(F)
–40
–31
–22
–13
–4
5
14
23
32
41
50
59
68
77
86
95
104
113
122
131
140
149
158
21
RESISTANCE
(Ohms)
335,651
242,195
176,683
130,243
96,974
72,895
55,298
42,315
32,651
25,395
19,903
15,714
12,494
10,000
8,056
6,530
5,325
4,367
3,601
2,985
2,487
2,082
1,752
Wiring when distance between zone controller and space temperature sensor is 100 feet or less
100 FT. MAXIMUM
CCN COMM BUS
3 COND COMM CABLE (TYP)
2 COND TWISTED
CABLE OR 3 COND
CABLE (TEMP
SENSOR WIRING) (TYP)
AIR TERMINAL
UNIT (TYP)
ZONE
CONTROLLER
(TYP)
Cool
Warm
Cool
Warm
Cool
Warm
SPACE
TEMPERATURE
SENSOR
Wiring when distance between zone controller and space temperature sensor is greater than 100 feet
DISTANCE GREATER
THAN 100 FT.
CCN COMM BUS
2 COND TWISTED
CABLE OR 3 COND
CABLE (TEMP
SENSOR WIRING) (TYP)
AIR TERMINAL
UNIT (TYP)
ZONE
CONTROLLER
(TYP)
Cool
Warm
SPACE
TEMPERATURE
SENSOR
Fig. 14 — Communication Bus Wiring to Zone Controller
Before wiring the CCN connection, refer to the Connect to
the CCN Communication Bus section on page 26, for communication bus wiring and cable selection. The cable selected
must be identical to the CCN communication bus wire used for
the entire network.
The other end of the communication bus cable must be connected to the remainder of the CCN communication bus. If the
cable is installed as a T-tap into the bus, the cable length cannot
exceed 100 ft. Wire the CCN service jack of the sensor in a
daisy chain arrangement with other equipment. Refer to the
Connect to the CCN Communication Bus section, page 26, for
more details.
22
PRIMARY AIR TEMPERATURE SENSOR INSTALLATION — A primary air temperature (PAT) sensor is used on a
zone controller which is functioning as a Linkage Coordinator
for a non CCN/Linkage compatible air source. The part number is 33ZCSENPAT. See Fig. 15.
When used on a zone controller, try to select a zone controller which will allow installation of the PAT sensor in the main
trunk, as close to the air source as possible. See Fig. 16.
SUPPLY AIR TEMPERATURE (SAT) SENSOR INSTALLATION — On terminals with heat, the SAT sensor is required. The SAT must be installed in the duct downstream
from the air terminal. The SAT sensor is also sometimes called
a duct temperature (DT) sensor. The part number is
33ZCSENSAT.
The SAT sensor probe is 6 inches in length. The tip of the
probe must not touch the inside of the duct. Use field-supplied
bushings as spacers when mounting the probe in a duct that is
6 in. or less in diameter.
If the unit is a cooling only unit, the SAT is not required.
Fig. 15 — Primary Air Temperature Sensor
(Part Number 33ZCSENPAT)
Fig. 16 — Primary Air Temperature Sensor
Installation (Unit Discharge Location)
If the unit is equipped with electric reheat, ensure that the
sensor is installed at least 2 ft downstream of the electric heater.
See Fig. 17 for the sensor location in this application.
If the unit has an octopus connected directly at the discharge, install the sensor in the octopus. If the unit has an electric heater, the two foot minimum distance between the sensor
and the heater must be maintained. See Fig. 17 for the sensor
location in this application.
Disconnect electrical power before wiring the zone controller. Electrical shock, personal injury, or damage to the zone
controller can result.
Do not run sensor or relay wires in the same conduit or raceway with Class 1 AC or DC service wiring. Do not abrade, cut,
or nick the outer jacket of the cable. Do not pull or draw cable
with a force that may harm the physical or electrical properties.
Avoid splices in any control wiring.
Perform the following steps to connect the SAT sensor to
the zone controller:
1. Locate the opening in the control box. Pass the sensor
probe through the hole.
2. Drill or punch a 1/4-in. hole in the duct downstream of
the unit, at a location that conforms to the requirements shown in Fig. 17.
3. Use two field-supplied, self-drilling screws to secure
the sensor probe to the duct. Use field-supplied bushings as spacers when installing the sensor probe in a
duct 6 in. or less in diameter.
Perform the following steps if state or local code requires
the use of conduit, or if your installation requires a cable length
of more than 8 ft:
1. Remove the center knockout from a field-supplied 4 x
2-in. junction box and secure the junction box to the
duct at the location selected for the sensor probe.
2. Drill a 1/2-in. hole in the duct through the opening in
the junction box.
3. Connect a 1/2-in. nominal field-supplied conduit
between the zone controller enclosure and the junction
box.
4. Pass the sensor probe wires through the conduit and
insert the probe in the duct. Use field-supplied bushings as spacers when installing the sensor probe in a
duct 6 in. or less in diameter.
5. Secure the probe to the duct with two field-supplied
self-drilling screws.
6. If you are extending cable length beyond 8 ft, use plenum rated, 20 AWG, twisted pair wire.
7. Connect the sensor leads to the zone controller’s wiring harness terminal board at the terminals labeled
SAT and GND.
8. Neatly bundle and secure excess wire.
→ INDOOR AIR QUALITY SENSOR INSTALLATION —
The indoor air quality (IAQ) sensor accessory monitors carbon
dioxide levels. This information is used to modify the position
of the outdoor air dampers to admit more outdoor air as
required to provide the desired ventilation rate. Two types of
sensors are supplied. The wall sensor can be used to monitor
the conditioned air space; the duct sensor monitors the return
air duct. Both wall and duct sensors use infrared technology to
measure the levels of CO2 present in the air. The wall sensor is
available with or without an LCD readout to display the CO2
level in ppm. See Fig. 18.
The sensor part number is 33ZCSENCO2. To mount the
sensor, refer to the installation instructions shipped with the accessory kit.
23
800
UNIT WITH ELECTRIC REHEAT
2 FT. MIN.
AIR
TERMINAL
UNIT
PRIMARY
AIR INLET
ZC
SAT
HEAT
UNIT WITH OCTOPUS
2 FT. MIN.
AIR
TERMINAL
UNIT
PRIMARY
AIR INLET
ZC
OCTOPUS
HEAT
SAT
ZC — Zone Controller
→ Fig. 17 — Supply Air Temperature Probe (Part No. 33ZCSENSAT) Locations
The CO2 sensors (33ZCSENCO2) factory set for a range of
0 to 2000 ppm and a linear voltage output of 0 to 10 vdc.
Figure 19 shows ventilation rates for various CO2 set points
when outside air with a typical CO2 level of 350 ppm is used.
Refer to the instructions supplied with the CO2 sensor for electrical requirements and terminal locations. The zone controller
requires 24 vac 25 va transformer to provide power to the
sensor.
5.625
(14.3)
To convert the CO2 sensor into a duct-mounted CO2 sensor,
the duct-mounted aspirator (33ZCASPCO2) will need to be
purchased.
To accurately monitor the quality of the air in the conditioned air space, locate the sensor near the return air grille so it
senses the concentration of CO2 leaving the space. The sensor
should be mounted in a location to avoid direct breath contact.
Do not mount the space sensor in drafty areas such as near
supply ducts, open windows, fans, or over heat sources. Allow
at least 3 ft between the sensor and any corner. Avoid mounting
the sensor where it is influenced by the supply air; the sensor
gives inaccurate readings if the supply air is blown directly
onto the sensor or if the supply air does not have a chance to
mix with the room air before it is drawn into the return air
stream.
To accurately monitor the quality of the air in the return air
duct, locate the sensor at least 6 in. upstream or 15 in. downstream of a 90 degree turn in the duct. The downstream location is preferred. Mount the sensor in the center of the duct.
5
(12.7)
3.25
(8.3)
1.125
(2.9)
IMPORTANT: If the sensor is mounted in the return air
duct, readjust the mixed-air dampers to allow a small
amount of air to flow past the return air damper whenever the mixing box is fully open to the outside air. If the
damper is not properly adjusted to provide this minimum airflow, the sensor may not detect the indoor-air
quality during the economizer cycle.
0.25
(0.8)
Fig. 18 — Indoor Air Quality (CO2) Sensor
(33ZCSENCO2)
303
24
The sensor must be mounted vertically on the wall. The
Carrier logo should be oriented correctly when the sensor is
properly mounted.
DO NOT mount the sensor in drafty areas such as near heating or air-conditioning ducts, open windows, fans, or over heat
sources such as baseboard heaters, radiators, or wall-mounted
light dimmers. Sensors mounted in those areas will produce inaccurate readings.
Avoid corner locations. Allow at least 4 ft between the sensor and any corner. Airflow near corners tends to be reduced,
resulting in erratic sensor readings.
Sensor should be vertically mounted approximately 5 ft up
from the floor, beside the space temperature sensor.
For distances up to 500 feet, use a 3-conductor, 18 or 20
AWG cable. A CCN communication cable can be used,
although the shield is not required. The shield must be removed
from the sensor end of the cable if this cable is used. See
Fig. 22 for wiring details.
The power for the sensor is provided by the control board.
The board provides 24 vdc for the sensor. No additional power
source is required.
To wire the sensor, perform the following:
1. At the sensor, remove 4-in. of jacket from the cable.
Strip 1/4-in. of insulation from each conductor. Route
the cable through the wire clearance opening in the
center of the sensor. See Fig. 22.
2. Connect the RED wire to the sensor screw terminal
marked (+).
3. Install one lead from the resistor (supplied with the
sensor) and the WHITE wire, into the sensor screw terminal marked (–). After tightening the screw terminal,
test the connection by pulling gently on the resistor
lead.
4. Connect the remaining lead from the resistor to the
BLACK wire and secure using a closed end type crimp
connector or wire nut.
5. Using electrical tape, insulate any exposed resistor
lead to prevent shorting.
6. At the control box, remove the jacket from the cable
and route the RED conductor over to the left side of
the control board. Route the remaining conductors to
the right side of the control board.
Fig. 19 — Ventilation Rated Based on
CO2 Set Point
Indoor Air Quality Sensor Wiring — To wire the sensors
after they are mounted in the conditioned air space and return
air duct, see Fig. 20 and the instructions shipped with the sensors. For each sensor, use two 2-conductor 18 AWG twistedpair cables (unshielded) to connect the separate isolated 24 vac
power source to the sensor and to connect the sensor to the control board terminals. To connect the sensor to the control board,
identify the positive (+) PIN-8 and ground (GND) PIN-7 terminals on the sensor and connect the positive terminal to terminal
RH/IAQ and connect the ground terminal to terminal GND.
HUMIDITY SENSOR (WALL-MOUNTED) INSTALLATION — The accessory space humidity sensor is installed on
an interior wall to measure the relative humidity of the air within the occupied space. See Fig. 21.
The use of a standard 2- x 4-in. electrical box to accommodate the wiring is recommended for installation. The sensor can
be mounted directly on the wall, if acceptable by local codes.
If the sensor is installed directly on a wall surface, install the
humidity sensor using 2 screws and 2 hollow wall anchors
(field-supplied); do not overtighten screws. See Fig. 11.
Do NOT clean or touch the sensing element with chemical
solvents; they can permanently damage the sensor.
RH/IAQ
GND
0
21
1
87
HF23BJ042
Made in Switzerland
by Belimo Automation
35 in-lb (4 Nm)
80...110s
LR 92800
24 VAC
NEMA 2
LISTED
94D5
TEMP. IND. &
REG. EQUIP.
UL
SEPARATE
ISOLATED
POWER
SUPPLY
REQUIRED
(24 VAC, 25 VA
MINIMUM)
Class 2 Supply
24VAC/DC
50/60Hz
3VA
2W
5K
COM
WIP
yel
blu
ora
1
2
3
blk
red
wht
LINE
VOLTAGE
*Do not connect to the same transformer that supplies power to the zone controller.
→ Fig. 20 — Indoor Air Quality Sensor Wiring
25
303
Refer to the service configuration table and set the Heating
Loop parameters as follows:
Proportional Gain = 20.0
Integral Gain = 0.5
Derivative Gain = 0.0
Start Value = 102.0
Also, set the Ducted Heat decision to YES and set the Maximum Duct Temperature decision equal to the design (maximum) boiler water temperature minus 20 degrees, but not
greater than 200 degrees F.
Connect the CCN Communication Bus — The
zone controllers connect to the bus in a daisy chain arrangement. The zone controller may be installed on a primary CCN
bus or on a secondary bus from the primary CCN bus. Connecting to a secondary bus is recommended.
At 9,600 baud, the number of controllers is limited to 128
zones maximum, with a limit of 8 systems (Linkage Coordinator configured for at least 2 zones). Bus length may not exceed
4000-ft, with no more than 60 devices on any 1000-ft section.
Optically isolated RS-485 repeaters are required every 1000 ft.
At 19,200 and 38,400 baud, the number of controllers
is limited to 128 maximum, with no limit on the number of
Linkage Coordinators. Bus length may not exceed 1000 ft.
The first zone controller in a network connects directly to
the bridge and the others are wired sequentially in a daisy chain
fashion. Refer to Fig. 25 for an illustration of CCN Communication Bus wiring.
The CCN Communication Bus also connects to the zone
controller space temperature sensor. Refer to the Install the
Sensors section for sensor wiring instructions.
COMMUNICATION BUS WIRE SPECIFICATIONS —
The Carrier Comfort Network (CCN) Communication Bus
wiring is field-supplied and field-installed. It consists of
shielded three-conductor cable with drain (ground) wire. The
cable selected must be identical to the CCN Communication
Bus wire used for the entire network. See Table 2 for recommended cable.
Fig. 21 — Wall Mounted Relative Humidity Sensor
(P/N 33AMSENRHS000)
7. Strip 1/4-in. of insulation from each conductor
and equip each with a 1/4-in. female quick connect
terminal.
8. Connect the RED wire to terminal +24v on the control
board.
9. Connect the BLACK wire to terminal GND on the
control board.
10. Connect the WHITE/CLEAR wire to terminal
RH/IAQ on the control board.
11. Connect shield to ground (if shielded wire is used).
→ Remote Occupancy Contact — The remote occupancy input (J4 pin 2) has the capability to be connected to a
normally open or normally closed occupancy dry contact. Wire
the dry contact as show in Fig. 23 between J4 Pin 2 and
24 VAC J1 Pin 1. The 24 VAC necessary to supply the
ComfortID™ Controller remote occupancy contact input shall
be supplied using the existing ComfortID Controller.
Table 2 — Recommended Cables
MANUFACTURER
CABLE PART NO.
2413 or 5463
Alpha
A22503
American
8772
Belden
02525
Columbia
NOTE: Conductors and drain wire must be at least 20 AWG
(American Wire Gage), stranded, and tinned copper. Individual conductors must be insulated with PVC, PVC/nylon, vinyl, teflon, or
polyethylene. An aluminum/polyester 100% foil shield and an outer
jacket of PVC, PVC/nylon, chrome vinyl, or Teflon with a minimum
operating temperature range of –20° C to 60° C is required.
Connect the Outputs — Wire the zone controller’s
outputs (fan, staged heat, valves) as shown in the applicable
wiring diagrams in Fig. 8A-J.
Modulating Baseboard Hydronic Heating — Install the water valve on the leaving water end of the baseboad
heater. See Fig. 24. Observe the fluid flow direction when
mounting the valve. Be sure to properly heat sink the valve and
direct the flame away from the actuator and valve body when
sweating the valve connections. Install the leaving water temperature sensor (33ZCSENCHG) on the hydronic heating coil
as shown. The sensor accommodates nominal copper pipe
from 1/2 to 1-in. (OD sizes from 5/8 to 1.125 in.). It should be
secured to the pipe with the clamp supplied. If piping is larger
than 1-in. nominal size, a field-supplied clamp must be used.
Use fiberglass pipe insulation to insulate the sensor assembly.
Refer to Fig. 8C and 8H to wire the modulating water valve
and the sensor to the zone controller. Connect the leaving water
temperature sensor to the controller using the wiring connections shown for the SAT sensor. (NOTE: The leaving water
temperature sensor replaces the SAT sensor in this application.)
Use 18 or 20 AWG wire for all connections. The water valve
actuator housing may be used as a junction box if the leaving
water temperature sensor cable is not long enough and the sensor cable must be extended to reach the controller.
For modulating hydronic heating applications, the default
configuration must be changed to properly control the valve.
801
CONNECTION TO THE COMMUNICATION BUS
1. Strip the ends of the red, white, and black conductors
of the communication bus cable.
2. Connect one end of the communication bus cable to
the bridge communication port labeled COMM2 (if
connecting on a secondary bus).
When connecting the communication bus cable, a
color code system for the entire network is recommended to simplify installation and checkout. See
Table 3 for the recommended color code.
Table 3 — Color Code Recommendations
SIGNAL TYPE
+
Ground
–
26
CCN BUS WIRE
COLOR
Red
White
Black
PLUG PIN
NUMBER
1
2
3
NOTE: The communication bus drain wires (shield) must
be tied together at each zone controller. If the communication bus is entirely within one building, the resulting continuous shield must be connected to ground at only one single
point. If the communication bus cable exits from one building and enters another building, connect the shields to
ground at a lightning suppressor in each building where the
cable enters or exits (one point only).
3. Connect the other end of the communication bus cable
to the terminal block labeled CCN in the zone controller of the first air terminal. Following the color code
in Table 3, connect the Red (+) wire to Terminal 1.
Connect the White (ground) wire to Terminal 2. Connect the Black (–) wire to Terminal 3.
4. Connect additional zone controllers in a daisy chain
fashion, following the color coded wiring scheme in
Table 3. Refer to Fig. 25.
3 CONDUCTOR
20 AWG CABLE
RED
+
-
WHITE
BLACK
499
RESISTOR
(SUPPLIED
W/SENSOR)
SHIELD
(IF USED)
HUMIDITY SENSOR
RH/IAQ
GND
+24V
0
1
HF23BJ042
Made in Switzerland
by Belimo Automation
35 in-lb (4 Nm)
80...110s
LR 92800
NEMA 2
LISTED
94D5
TEMP. IND. &
REG. EQUIP.
UL
Class 2 Supply
24VAC/DC
50/60Hz
3VA
2W
5K
COM
WIP
yel
blu
ora
1
2
3
blk
red
wht
Fig. 22 — Humidity Sensor Wiring
27
303
28
CCN
SAT
SPT
TRAN
Yel
—
—
—
—
Ora
Blk
com
Red
24VAC/DC
50/60Hz
3VA 2W
35 in-lb(4Nm)
80...110s
1
LEGEND
Carrier Comfort Network
Supply-Air Temperature Sensor
Space Temperature Sensor
Transformer
Field Wiring
Factory Wiring
Blu
Made in Switzerland
By Belimo Automation
HF23BJ042
0
Wht
→
W
Hi
Low
R
HEAT1 24VAC HEAT2
Fig. 23 — Remote Occupancy Wiring
B
R
W
B
(GND)
(-)
PAT
GND
T56
SAT
GND
SPT
+24V
(+)
GND
N/A
GND
Or
DMPPOS
Bl
+10V
Y
SECFLOW
GND
RH/IAQ
TERMINAL
GROUND
TRANSFORMER
GROUND
TRAN
24 VAC
Line Voltage
CCN comunications
CCN comunications
Not used
FIELD-SUPPLIED
DRY CONTACT SWITCH
33ZCSENCHG
(SENSOR)
FLOW
1/2” TUBE
3/4” TUBE
1” TUBE
→ Fig. 24 — Typical Water Valve and Sensor Installation
1000 FT. MAXIMUM
DRAIN WIRE (TYP)
BLK (TYP)
GND
WHT (TYP)
RED (TYP)
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3 4
CCN
CCN
CCN
CCN
COMM 2
ZC
(TYP)
AIR TERMINAL
UNIT (TYP)
BRIDGE
(RECOMMENDED)
CCN
ZC
LEGEND
— Carrier Comfort Network
— Zone Controller
Fig. 25 — Communication Bus Wiring
3. Check that all air duct connections are tight.
4. At the air terminals, check fan and system controls for
proper operation. Verify that actuator screws are properly tightened.
5. At the air terminals, check electrical system and connections of any optional electric reheat coil. If hot
water reheat is used, check piping and valves against
job drawings.
6. At the air terminals, make sure that all balancing
dampers at box outlets are in the fully open position.
7. If using an air handler with field-installed controls,
make sure controls and sensors have been installed and
wired per manufacturer installation instructions.
8. At air handlers, verify that the motor starter and, if
applicable, the Hand/Off/Auto (HOA) switch are
installed and wired.
NOTE: The HOA switch must be in the Off position.
START-UP
Use the Carrier network communication software to start up
and configure the zone controller.
All set-up and set point configurations are factory-set and
field-adjustable.
Changes can be made using the ComfortWORKS® software, ComfortVIEW™ software, or Network Service Tool.
The Network Service Tool is a portable interface device that allows the user to change system set-up and set points from a
zone sensor or terminal control module. During start-up, the
Carrier software can also be used to verify communication
with each zone controller.
For specific operating instructions, refer to the literature
provided with the software.
Perform System Check-Out
1. Check correctness and tightness of all power and communication connections.
2. Check that all air terminals, ductwork, and zone controllers are properly installed and set according to
installation instructions and job requirements.
29
800
9. Check to be sure the area around the air handler(s) is
clear of construction dirt and debris.
10. Check that final filters are installed in the air handler(s). Dust and debris can adversely affect system
operation.
11. Verify that the zone controller and the air handler controls are properly connected to the CCN bus.
elliptical damper inlet is supplied, then enter the inlet
size in square inches in the Inlet Area decision.
5. If the terminal damper closes in the CW direction, then
no adjustment is required. Otherwise, locate the
damper direction configuration decision (CW Rotation) and toggle the value to OPEN by using the space
bar. This configuration decision is also located on the
Terminal Service Configuration screen.
6. After entering the area and rotation direction, verify
operation of the damper. From the service tool Diagnostic, Maintenance Screen, select the Zone Air
Balance/Commissioning Table and force the Commissioning Mode point to Enable. Then select the
Damper/Transducer Cal point and force this point to
Enable. The controller automatically tests the actuator
by fully closing the damper.
It checks the fully closed position to determine if the
control was properly mounted. It then opens the
damper. The control scales the actual actuator travel
range used to a 0 to 100% open value. Finally the control will close the damper, test, and zero the pressure
transducer. When completed, the control automatically
removes the force from the Damper/Transducer Cal
point. If a failure occurs at any point during the testing,
the Auto-Calibration point at the bottom of the screen
will indicate ALARM and the test will be aborted.
7. The actuator stroke has now been calibrated for the
proper rotation.
Before starting the air source fan, make sure that dampers
at the system’s air terminals are not fully closed. Starting
the fan with dampers closed will result in damage to the
system ductwork.
12. Remember to utilize good duct design and to provide
sufficient straight duct at the inlet of the box. A minimum of three times the inlet size is recommended.
Network Addressing — Use the following method
when all the zone controllers are installed and powered, and the
SPT sensors are wired and functioning properly. This method
can be used if no addresses have been set previously. The address of an individual zone controller may be set by using the
address search function on the Service Tool software when it is
directly connected to the service port of the zone controller and
the CCN bus is disconnected. This is the standard method of
setting the address.
Addresses may also be set using the Service Tool Address
Search Function if the zone controller is isolated from the CCN
bus.
Each zone controller will default to an address of 0, 140
when its application software is initially loaded. Since multiple
controllers will be on the same bus, a unique address must be
assigned to each controller before the system can operate properly. The assignment of controller addresses will be performed
through software by using the Address Search function of the
Network Service Tool, as follows:
1. The software recognizes that the Zone Controller's address, stored in the zone controller memory, has not been
written yet (this will be true when the unit is first powered
up on the job, or after a jumper-initiated reset).
2. Press the override button on the SPT (terminals J4-14 and
J4-12 are shorted) for 1 to 10 seconds.
3. The zone controller address changes from 0, 140 to 239,
239 for a period of 15 minutes.
→ 4. Use Network Service Tool to change the address from
239, 239 to a valid system address within 15 minutes.
NOTE: If the address is not changed from 239, 239 to
a valid system address within 15 minutes, the controller will revert to address 0, 140 and use of the override
button will cause the address function to repeat. The
operator MUST actively set the address even if the
final desired address is 0, 140.
Airflow Check — After the damper transducer calibration
has been performed, the terminal is ready for an airflow check.
To perform airflow check, make sure Terminal Type, Primary
Inlet Size, and Probe Multiplier settings on the Terminal Service Configuration screen are configured. If all of the terminals
were installed with the dampers open, it is acceptable to start
the fan at this time. If it becomes difficult for the air source to
provide the necessary static pressure for airflow testing, it may
be necessary to calibrate the damper transducer for a majority
of terminals and check temperatures and set points to be sure
most will be controlling to less than maximum CFM when the
air source is started.
When the system fan is running and the static pressure is
fairly stable access the Zone Air Balance/Commissioning table
and force the Commissioning Mode Point to Enable. The system is now ready to enable maximum CFM and check if the
airflow controls correctly with the maximum CFM set point.
Read the Zone Air Balance/Commissioning table section on
page 47 which describes the Zone Air Balance/Commissioning
table and what adjustments can be made from this screen. If the
maximum airflow function is working properly, the user can
stop here and leave the rest of the airflow calibration for the air
balance contractor.
If working with the air balance contractor, proceed with the
minimum airflow calibration at this time. If this terminal is fan
powered or the terminal was installed with heat, and the heat
configuration was already performed, continue with the fan
and heat test while the Zone Air Balance/Commissioning table
is still being displayed.
Initial Operation and Test — Perform the following
procedure:
1. Apply 24 vac power to the control.
2. Connect the service tool to the phone jack service port
of the controller.
3. Using the service tool, upload the controller from
address assigned in Network Addressing section
above.
4. From the Terminal Service Configuration screen,
properly configure the damper type and inlet size. If a
round inlet is used, then enter the size directly in the
Inlet Diameter decision. If a square, rectangular, or
501
Fan and Heat Configuration and Test — Perform the following procedure to configure and test the fan and
heat:
1. Display the Terminal Service Configuration screen to
make sure the proper Terminal Type and Heat Type are
configured. See the Configuration section to answer
questions about the individual configurations.
2. From the Diagnostics Maintenance Screen select the
Zone Air Balance/Commissioning table.
3. Force the Commissioning Mode to Enable.
30
4. If the terminal is a parallel or series powered fan box,
force the Fan Override to Enable. If the damper is open
it may have to be repositioned to the proper position
depending on the box type. Damper percent change
will be displayed. After the damper is positioned correctly, the fan relay should energize and the fan should
run for a few seconds.
5. Make sure the fan runs and the Fan Override decision
returns to disabled to ensure the fan is wired correctly
for proper operation.
6. Force the Heating Override to Enable. If the unit is a
single duct unit, this must be done with the primary
terminal at reheat set point. The damper will modulate
to maintain the terminal reheat CFM. The heat outputs
will be commanded to provide maximum heat. If the
unit is a fan powered terminal, the fan must be on.
NOTE: The CFM settings can be found under service configuration in the table AIRFLOW.
CONFIGURATION
The following sections describe the computer configuration
screens which are used to configure the zone controller. The
screens shown may be displayed differently when using different Carrier software.
Points Display Screen — The Points Display screen
allows the user to view the status of the air terminal controller
points. See Table 4.
TERMINAL MODE — The terminal mode is determined by
the equipment mode as reported by linkage and space requirements determined by space temperature and set points. The
ZEROCAL and COMMISS modes are the result of the activating the commissioning maintenance table to perform terminal
testing and commissioning.
Terminal Mode: Display Units
ASCII
Default Value
COOL
Display Range
HEAT, COOL, VENT,
FAN AND VENT, DEHUMID, WARMUP, REHEAT, PRESSURE, EVAC, OFF,
ZEROCAL, COMMISS
Network Access Read only
TERMINAL TYPE — Terminal type is the confirmation of
the terminal type configuration in the SERVCONF Service
Config table.
Terminal Type: Display Units
ASCII
Default value
SINGLDUCT
Display Range
SINGLDUCT, PAR
FAN, SER FAN, DUALDUCT
Network Access Read only
→ CONTROLLING SETPOINT — Controlling Setpoint will
display either the heating master reference or the cooling master reference depending upon what mode the terminal is in. The
display will default to the heating master reference and display
the last controlling master reference when in neither heating
nor cooling.
Controlling
Setpoint
Display Units
F (C)
Default Value:
–40
Display Range: –40 to 245
Network Access: Read only
SPACE TEMPERATURE — Space temperature from 10 kΩ
thermistor (Type III) located in the space.
Space
Temperature:
Display Units
F (C)
Default Value
-40.0
Display Range
-40.0 to 245.0
Network Access Read/Write
PRIMARY AIRFLOW — Volume of primary air calculated
for pressure reading from the velocity pressure pickup probe
located in the input collar of the air terminal.
Primary Airflow: Display Units
cfm
Default Value
0
Display Range
0 to 9999
Network Access Read/Write
PRIMARY DAMPER POSITION — Damper position percent range of rotation determined by the transducer calibration
procedure. The zone controller is designed be used on dampers
with any range of rotation.
Primary Damper
Position:
Display Units
% open
Default Value
0
Display Range
0 to 100
Network Access Read only
→ Table 4 — Points Display Screen
DESCRIPTION
Terminal Mode
Terminal Type
Controlling Setpoint
Space Temperature
Primary Airflow
Primary Damper Position
Supply Air Temperature
Local Heating Capacity
Terminal Fan
Relative Humidity
Air Quality (ppm)
Secondary Airflow
Primary Air Temperature
Heat
DEFAULT
COOL
SINGLDUCT
-40.0 F
-40.0 F
0 cfm
100 %
0.0 F
0%
Off
0 % RH
0 ppm
0 cfm
0.0 F
Dsable
31
POINT NAME
MODE
TYPE
CNTSP
SPT
PRIFLO
DMPPOS
SAT
HCAP
FAN
RH
AQ
SECFLO
PATEMP
HEAT
801
Air Quality (ppm):Display units
None shown (parts per
million implied)
Default Value
0
Display range
0 to 5000
Network Access Read/Write
SECONDARY AIRFLOW — Airflow reading from the secondary pressure transducer, supplied with the secondary actuator, intended for dual duct and pressure control applications.
Secondary
Airflow:
Display Units
cfm
Default Value
0
Display Range
0 to 9999
Network Access Read/Write
PRIMARY AIR TEMPERATURE — Primary air temperature from sensor (10 kΩ, Type III), located in main trunk of
ductwork for supply air provided by the air-handling equipment. Used for linkage coordination.
Primary Air
Temperature:
Display Units
F (C)
Default Value
0.0
Display Range
-40.0 to 245.0
Network Access Read/Write
HEAT ENABLE/DISABLE — Provides enable/disable
function for local heat at the terminal. When enabled the Local
heat capacity function will run to operate the terminal heat.
Heat Display:
Display Units
Discrete ASCII
Default Value
Dsable
Display Range
Dsabe/Enable
Network Access Read/Write
SUPPLY AIR TEMPERATURE — Temperature of the air
leaving the zone controller downstream of any ducted heat
source. Measured by a 10 kΩ thermistor (Type III). This temperature is used to control the maximum discharge air to the
space when local heat is active. The sensor is not required or
recommended for cooling only terminals. If supply air temperature display is required by specification, on a cooling only
box, a heat type other than zero must be configured. This
will have no adverse affect on the operation of a cooling only
terminal.
Supply
Air Temperature: Display Units
F (C)
Default Value
0.0
Display Range
-40.0 to 245.0
Network Access Read/Write
LOCAL HEATING CAPACITY — When local heat at the
terminal is enabled the percent of heat being delivered is determined by the following formula for modulating (floating point)
type heat:
% Capacity = [(SAT - SPT)/(Maximum Duct Temp – SPT )]
The percent of heat delivered is determined by the following for two-position hot water or staged electric heat:
% Output Capacity = (# of active stages/Total stages) * 100
Local Heating
Capacity:
Display Units
% output capacity
Default Value
0
Display range
0 to 100
Network Access Read only
TERMINAL FAN — The commanded output for the terminal
fan on a fan powered terminal.
Terminal Fan:
Display Units
Discrete ASCII
Default Value
Off
Display Range
Off/On
Network Access Read/Write
RELATIVE HUMIDITY — Space Relative Humidity reading from the optional relative humidity sensor. Used by Humidity control function if configured.
Relative
Humidity:
Display Units
% RH
Default Value
0
Display Range
0 to 100
Network Access Read/Write
AIR QUALITY — Indoor air quality reading from a CO2 sensor installed in the space. Used by Air Quality control function
if configured.
Modify Controller Configuration — In Service
Tool software, select the desired zone controller and access the
Modify Controller Configuration Menu screen. This configuration screen is also displayed under CONFIGURE when using
ComfortWORKS® and ComfortVIEW™ software.
The Modify Controller Configuration Menu screen is used
to access the Alarm Limit Configuration screen, Controller
Identification screen, Holiday Configuration screen, Linkage
Coordinator Configuration screen, Occupancy Configuration
screen, and Set Point screen.
ALARM LIMIT CONFIGURATION SCREEN — The
Alarm Limit Configuration screen is used to configure the
alarm settings for the zone controller. See Table 5.
→ Table 5 — Alarm Limit Configuration Screen
DESCRIPTION
Alarm Routing Control
Re-Alarm Time
SPT Occupied Hysteresis
Unoccupied SPT
Low Limit
High Limit
Occupied RH
Low Limit
High Limit
Unoccupied RH
Low Limit
High Limit
Air Quality
Low Limit
High limit
High Velocity Pressure
801
DEFAULT
00000000
0
5.0 F
POINT NAME
ROUTING
RETIME
SPTHYS
40 F
99 F
LOWLIM
HIGHLIM
10 %
99 %
LOWLIM
HIGHLIM
0%
100 %
LOWLIM
HIGHLIM
250 ppm
1200 ppm
1.2 in. wg
LOWLIM
HIGHLIM
HIGHVP
32
Alarm Routing Control — This decision indicates which
CCN system software or devices will receive and process
alarms sent by the zone controller. This decision consists of
eight digits each can be set to zero or one. A setting of 1 indicates alarms should be sent to this device. A setting of zero disables alarm processing for that device. Currently the corresponding digits are configured for the following devices: first
digit - user interface software; second digit - autodial gateway
or Telink; fourth digit - alarm printer interface module; digits 3,
and 5 through 8 - unused.
Alarm Routing
Control:
Range
00000000 to 11111111
Default Value
00000000
Re-Alarm Time — This decision is used to configure the number of minutes the zone controller will wait before an alarm
condition which has not been corrected will be re-transmitted
on the communications network. Re-alarming of an alarm condition will continue until the condition no longer exists.
Alarm Re-Alarm
Time:
Units
Minutes
Range
0 to 1440
Default Value
0 (Disabled)
Space Temperature Occupied Hysteresis — This configuration defines the range above the occupied high set point and below the occupied low set point that the space temperature must
exceed for an alarm condition to exist during occupied hours.
Space Temperature
Occupied
Hysteresis:
Units
delta F (delta C)
Range
0.0 to 99.9
Default Value
5.0
Unoccupied Space Temperature Low Limit — This configuration defines the lowest temperature that the unoccupied space
can be before an alarm is generated.
Unoccupied Space
Temperature
Low Limit:
Units
F (C)
Range
0 to 255 F
Default Value
40
Unoccupied Space Temperature High Limit — This configuration defines the highest temperature that the unoccupied
space can be before an alarm is generated.
Unoccupied Space
Temperature
High Limit:
Units
F (C)
Range
0 to 255 F
Default Value
99
Occupied Humidity Low Limit — This configuration defines
the lowest humidity that the occupied space can be before an
alarm is generated.
Occupied Humidity
Low Limit:
Units
% humidity
Range
0 to 100%
Default Value
10
Occupied Humidity High Limit — This configuration defines the highest humidity that the occupied space can be before an alarm is generated.
Occupied Humidity
High Limit:
Units
% humidity
Range
0 to 100%
Default Value
99
→ Unoccupied Humidity Low Limit — This configuration defines the lowest humidity that the unoccupied space can be
before an alarm is generated.
Unoccupied
Humidity Low
Limit:
Units
% humidity
Range
0 to 100%
Default Value
0
→ Unoccupied Humidity High Limit — This configuration defines the highest humidity that the unoccupied space can be
before an alarm is genenerated.
Unoccupied
Humidity High
Limit:
Units
% humidity
Range
0 to 100%
Default Value
100
Indoor Air Quality Low Limit — This configuration defines
the lowest CO2 level that the occupied space can have before
an alarm is generated.
Indoor Air Quality
Low Limit:
Units
PPM (implied)
Range
0 to 5000
Default Value
250
Indoor Air Quality High Limit — This configuration defines
the highest CO2 level that the occupied space can have before
an alarm is generated.
Indoor Air Quality
High Limit:
Units
PPM
Range
0 to 5000 PPM
Default Value
1200
High Velocity Pressure — This configuration defines the
maximum velocity pressure the zone controller should see at
the pickup mounted in the inlet of the terminal. This is also
used by the zone controller to calculate the maximum CFM the
terminal will be able to control to using the terminal inlet size
configured in the service configuration table.
High Velocity
Pressure:
Units
in. wg
Range
0.0 to 2.0 in. wg
Default Value
1.2
CONTROLLER IDENTIFICATION SCREEN — The controller identification screen displays the device information for
the zone controller.
HOLIDAY CONFIGURATION SCREENS — The zone
controller has configuration screens for up to 12 different holiday schedules. Highlight the holiday name on the screen and
press enter to configure the holiday schedule. A separate screen
is used to ENTER the Holiday schedule.
Start Month — The start month is the month in which the holiday starts. Months are represented by numbers with 1 representing January, 2 February, up to 12.
Start Month:
Range
1 to 12
Default Value
1
Start Day — The start day is the day on which the holiday will
start.
Start Day:
Range
1 to 31
Default Value
1
Duration — Length of time, in days, that the holiday will last.
Duration:
Range
0 to 365
Default Value
0
33
801
Air Source Bus and Element Number — The Air Source Bus
and Element Number configurations define the address of the
air source providing conditioned air to the zones controlled by
the linkage coordinator. If the address is left at zero, the Linkage coordinator will look for a primary air sensor to determine
the equipment mode. If no primary air sensor is installed, or the
sensor fails, the Linkage Coordinator will default the air source
mode to Cooling.
Air Source
Bus Number:
Range
0 to 240
Default Value
0
LINKAGE
COORDINATOR
CONFIGURATION
SCREEN — The Linkage Coordinator Configuration screen
allows the user to set the linkage coordinator configuration settings. See Table 6.
Linkage Master Zone — This decision defines if the zone
controller will function as a Linkage Coordinator (Linkage
Master) for itself and other zones.
If the zone controller is to use a supply air sensor for standalone operation, this configuration must be configured to No
and the number of Zones to 1.
If the zone controller will use its primary air sensor to determine the air handler mode for a number of zone controllers,
configure this configuration to Yes, input the number of zones,
and leave the air source decisions at the default values of zero.
If this zone controller will communicate linkage information with an air source, configure this configuration to Yes. The
number of zones must be configured and the address of the air
source entered.
Linkage
Master Zone:
Range
Yes/No
Default Value
No
Number of Zones — This decision defines the number of zone
controllers (including itself) for the Linkage Coordinator to
scan and include as part of the average temperature, set points,
and occupancy information to the air source. The address of the
zone controller functioning as a Linkage Coordinator must be
larger than the number of zones configured. The zone controller will scan addresses less than its own, including information
for as many zones as are configured. Other zone controller configured as linkage coordinators will also be included, so it is
possible to have zones scanned by more than one linkage coordinator. Therefore care must be taken in addressing to prevent
overlapping systems, unless overlapping systems is necessary.
In large buildings the use of bridges and multiple busses is recommended to improve communication and provide system
differentiation.
Number of
Zones:
Range
1 to 128
Default Value
1
Air Source
Element Number:
0 to 240
Default Value
0
Static Pressure Reset — Air systems designed with diversity
(airflow required with all zones at maximum cfm exceeds design capacity of air handler) are capable of providing enough
CFM to all zones on days when conditions meet the demand at
design static. At other times, the air system does not require the
design static to meet the load requirements.
Static pressure reset allows the static pressure set point on
the air source to be reset whenever the system load is reduced
from the design maximum. The zone controller will then monitor damper positions. When the system dampers are modulating at lower damper positions due to the higher static, the static
pressure will then be reset to a lower value allowing the dampers to open more. This allows the system to automatically make
adjustments to the static pressure and optimize performance of
the fan which will reduce energy consumption.
The linkage coordinator monitors the position of all dampers in its system. When any zone’s maximum damper position
reaches the Reset Maximum Damper Position, the linkage coordinator will reduce the value of the reset variable.
The Maximum Damper Position and Static Pressure Reset
values can be viewed on the Linkage maintenance screen.
NOTE: The static pressure set point configured in the air
source should be the desired maximum (zero reset) static
pressure.
→ Table 6 — Linkage Coordinator Configuration Screen
DESCRIPTION
Zone Linkage
Linkage Master Zone
Number of Zones
Air Source Bus Number
Air Source Element Number
Static Pressure Reset
Reset Minimum Damper Position
Reset Maximum Damper Position
Maximum Reset
SP Reset Variable Name
CCN Linkage Data
CCN Variable Name
CCN Function Configuration
Data Transfer Rate
CCN Output Point
Destination Bus Number
Destination Element Number
Temperature Sensor Grouping
Temperature Sensor Mode
Temperature Sensor Configuration
Broadcast Device ID
801
DEFAULT
POINT NAME
No
1
0
0
MZENA
NSYSTZ
ASBUSN
ASELEMN
50 %
80 %
0.0 in. wg
(blank)
MINDP
MAXDP
SPMAX
SPRVAR
(blank)
3
10 minutes
(blank)
0
0
CCNVAR
CCNFUNC
DATARATE
CCNOUTP
DESTBUSN
DESTELEN
1
1
1
BRD_RECV
SENSCFG
BRDDEVID
34
Reset Minimum
Damper Position: Units
%
Range
0 to 99
Default Value
50
Reset Maximum
Damper Position: Units
%
Range
0 to 99
Default Value
80
Maximum Reset: Units
in. wg
Range
0.0 to 5.0
Default Value
0.0
Static Pressure Reset
Variable Name: Units
ASCII (8 characters)
Range
A-Z,0-9
Default Value
*
*To use Static Pressure Reset with a Comfort System
AirManager, configure the variable name to SPRESET.
Currently, to make use of the static reset information, a custom program must be written in a Comfort Controller to read
the reset value and change the set point of the static pressure
control in the air source. Use this configuration to create a variable name (Static Pressure Reset Value). See the application
manual for information about creating this custom program.
The Comfort System AirManager™ control has an internal
SPRESET variable which functions to accept the static pressure reset value from the linkage coordinator (refer to the Air
Manager manual for configuration setup).
→ CCN Linkage Data — A zone controller configured as a
Linkage master has the ability to poll its slaves and collect the
high, low or average value of any variable within its slaves.
Once the high, low or average is determined, the master can
then transfer that value to a configured bus number, element
number and point name. Typically this feature is used to determine a system’s highest indoor air quality reading.
In order to utilize this feature the CCN Variable Name being
collected from the slaves must be supplied. The data transfer
rate must be specified and whether the high, low, or average
value is being determined. After the value has been determined, a valid point name and CCN address to transfer the
value to must be entered.
CCN Variable
Name:
Units
ASCII (8 Characters)
Range
A-Z, 0-9
Default Value
(blank)
CCN Function
Config:
Units
none
Range
0 = none, 1 = average,
2 = low, 3 = high
Default Value
3
Data Transfer
Rate:
Units
minutes
Range
1-15
Default Value
10
CCN Output
Point:
Units
ASCII (8 Characters)
Range
A-Z, 0-9
Default Value
(blank)
Destination Bus
Number:
Units
none
Range
0-239
Default Value
0
Destination
Element Number: Units
none
Range
0-239 (0 = disabled)
Default Value
0
→ Temp Sensor Grouping — Each ComfortID™ controller has
the capability to broadcast the associated space temperature
sensor’s data or listen to another controller’s sensor data over
the network. All controllers sharing the same sensor must be
installed on the same CCN bus.
There are three configuration decisions that must be configured in order to share sensors. The Temp Sensor Mode is used
to specify if a controller will use its own local sensor, broadcast
its local sensor, or listed to another controller’s sensor broadcast. The Temp Sensor Config is used to specify if the controller is sharging the space temperature information only or the
space temperature and temperature offset slidebar information.
The Broadcast Device ID decision is used to specify which
controller number a zone will listen for when configured to
receive another controller’s broadcast.
Temp Sensor
Mode:
Units
none
Range
1 = Local Sensor,
2 = Broadcast, 3 = Listen
Default Value
1
Temp Sensor
Config:
Units
none
Range
1 = SPT, 2 = SPT and
offset
Default Value
1
Broadcast
Device ID:
Units
None
Range
1-239
Default Value
1
OCCUPANCY CONFIGURATION SCREEN — The Occupancy Configuration screen is used to set the occupied
schedule. See Table 7.
Manual Override Hours — The Manual Override Hours decision is used to command a timed override by entering the number of hours the override will be in effect.
If the occupancy schedule is occupied when this number is
downloaded, the current occupancy period will be extended by
the number of hours downloaded.
If the current occupancy period is unoccupied when the occupancy override is initiated, the mode will change to occupied
for the duration of the number of hours downloaded.
If the occupancy override will end after the start of the next
occupancy period, the mode will transition from occupancy
override to occupied without becoming unoccupied, and the
occupancy override timer will be reset.
An active occupancy override or a pending occupancy override may be canceled by downloading a zero to this configuration. Once a number other than zero has been downloaded to
this configuration any subsequent downloads of any value other than zero will be ignored by the zone controller.
Manual Override
Hours:
Units
hours
Range
0 to 4
Default Value
0
Occupancy Scheduling — For flexibility of scheduling, the
occupancy programming is broken into eight separate periods.
For each period the scheduling, the active days of the week,
occupied start time, and occupied stop time needs to be
configured.
Day of Week — This configuration consists of eight fields
corresponding to the seven days of the week and a holiday
field in the following order: Monday, Tuesday, Wednesday,
Thursday, Friday, Saturday, Sunday, Holiday. A separate configuration screen is used.
35
801
Table 7 — Occupancy Schedule Information Screen
DESCRIPTION
Manual Override Hours
Period 1: Day of Week
Period 1: Occupied From
Period 1: Occupied To
Period 2: Day of Week
Period 2: Occupied From
Period 2: Occupied To
Period 3: Day of Week
Period 3: Occupied From
Period 3: Occupied To
Period 4: Day of Week
Period 4: Occupied From
Period 4: Occupied To
Period 5: Day of Week
Period 5: Occupied From
Period 5: Occupied To
Period 6: Day of Week
Period 6: Occupied From
Period 6: Occupied To
Period 7: Day of Week
Period 7: Occupied From
Period 7: Occupied To
Period 8: Day of Week
Period 8: Occupied From
Period 8: Occupied To
If a 1 is configured in the corresponding place for a certain
day of the week, the related “Occupied from” and “Occupied
to” times for that period will take effect on that day of the
week. If a 1 is placed in the holiday field the related times will
take effect on a day configured as a holiday. A zero means the
schedule period will not apply to that day.
Period (1-8):
Day of Week:
Range
0 or 1
Default Values
11111111 for period 1,
00000000 for periods 2-8.
Occupied From — This field is used to configure the hour and
minute, in military time, when the mode for the zone controller
becomes occupied.
Period (1-8):
Occupied from: Units
Hours: Minutes
Range
00:00 to 24:00
Default Value
00:00
Occupied To — This field is used to configure the hour and
minute, in military time, when the occupied mode for the zone
controller becomes unoccupied.
Period (1-8):
Occupied from: Units
Hours: Minutes
Range
00:00 to 24:00
Default Value
24:00
SET POINT SCREEN — The Set Point screen is used to
modify the zone controller set points. See Table 8.
Occupied Heat — The Occupied Heat set point is used to configure the heating set point for the zone controller during Occupied mode.
Occupied Heat: Units
F (C)
Range
40.0 to 90.0
Default Value
70.0
1001
DEFAULT
0
11111111
00:00
24:00
00000000
00:00
24:00
00000000
00:00
24:00
00000000
00:00
24:00
00000000
00:00
24:00
00000000
00:00
24:00
00000000
00:00
24:00
00000000
00:00
24:00
POINT NAME
OVRD
DOW1
OCC1
UNOCC1
DOW2
OCC2
UNOCC2
DOW3
OCC3
UNOCC3
DOW4
OCC4
UNOCC4
DOW5
OCC5
UNOCC5
DOW6
OCC6
UNOCC6
DOW7
OCC7
UNOCC7
DOW8
OCC8
UNOCC8
Occupied Cool — The Occupied Cool set point is used to configure the cooling set point for the zone controller during Occupied mode.
Occupied Cool: Units
F (C)
Range
45.0 to 99.9
Default Value
74.0
Unoccupied Heat — The Unoccupied Heat set point is used to
configure the heating set point for the zone controller during
Unoccupied mode.
Unoccupied Heat: Units
F (C)
Range
40.0 to 90.0
Default Value
55.0
Unoccupied Cool — The Unoccupied Cool set point is used to
configure the cooling set point for the zone controller during
Unoccupied mode.
Unoccupied Cool: Units
F (C)
Range
45.0 to 99.9
Default Value
90.0
→ Occupied High Humidity — The Occupied High Humidity
set point is used to configure the humidity set point for the zone
controller if optional zone humidity control (dehumidification)
is used.
Occupied High Humidity: Units
% Humidity
Range
0.0 to 100.0
Default Value 60.0
→ Unoccupied High Humidity — The unoccupied high humidity set point is used to configure the unoccupied humidity set
point for the zone controller if optional zone humidity control
(dehumidification) is used.
Unoccupied
High Humidity: Units
% humidity
Range
0 to 100
Default Value
100
36
Cool Minimum (PI) — This configuration is the minimum
airflow the terminal will control to when the equipment is in
Cooling mode (or Fan Only mode) or free cooling. The space
requirements for cooling must be at a minimum, or the terminal
is a fan powered terminal and the space requirements are for
heat.
Cool Minimum: Units
CFM
Range
0 to 9999 (Limited by
the High Velocity pressure limit alarm)
Default Value
0
Cool Maximum (PI) — This configuration is the maximum
airflow the terminal will control to when the equipment is in
Cooling mode (or Fan Only mode) or free cooling and the
space requirements for cooling are at a maximum.
Cool Maximum: Units
CFM
Range
0 to 9999 (Limited by
the High Velocity pressure limit alarm)
Default Value
4000
Terminal Reheat (PI) — This configuration is for single duct
units with ducted reheat. The desired airflow is configured at
which the reheat will provide optimum performance. This value is compared to the Minimum Cool value and the greater of
the two values is used to determine the airflow set point.
Terminal Reheat: Units
CFM
Range
0 to 9999 (Limited by
the High Velocity pressure limit alarm)
Default Value
0
Air Quality — The Air Quality set point is used to configure
the IAQ set point for the zone controller if optional controlled
ventilation support is used.
Air Quality
Units
none shown (ppm
(ppm):
implied)
Range
0 to 5000
Default Value
850
Delta Airflow — The Delta Airflow set point is used to configure the Delta Airflow set point for the zone controller if the
zone pressure control option is used. If a negative pressure is
desired, configure the value as a positive delta.
Delta Airflow:
Units
cfm
Range
-9999 to 9999
Default Value
0
Service Configuration Selection Screen — The
Service Configuration Selection screen is a menu of Service
screens which can be accessed by the user. The following
screens are available: Airflow Service Configuration, Terminal
Service Configuration, Option Service Configuration, and Secondary Damper Service Configuration.
AIRFLOW SERVICE CONFIGURATION SCREEN —
The Airflow Service Configuration Table is used to configure
the pressure independent and backup pressure dependent set
points. See Table 9.
Pressure Independent — Pressure Independent (PI) set points
should be configured for pressure independent operation
applications.
→ Table 8 — Set Point Screen
DESCRIPTION
Set Points
Occupied Heat
Occupied Cool
Unoccupied Heat
Unoccupied Cool
Occupied HIgh Humidity
Unoccupied High Humidity
Air Quality (ppm)
Delta Airflow
DEFAULT
POINT NAME
70.0 F
74.0 F
55.0 F
90.0 F
60.0 %
100 %
850 ppm
0 cfm
OHSP
OCSP
UHSP
UCSP
ORHH
URHH
AQSP
DCFM
Table 9 — Airflow Service Configuration Screen
DESCRIPTION
Pressure Independent
Cool Minimum
Cool Maximum
Terminal Reheat
Heat Minimum
Heat Maximum
Parallel Fan On
Dual Duct CV Airflow
Pressure Dependent
Cool Minimum Position
Cool Maximum Position
Reheat Minimum Position
Heat Minimum Positon
Heat Maximum Position
Deadband Percent
DEFAULT
POINT NAME
0 cfm
4000 cfm
0 cfm
0 cfm
4000 cfm
0 cfm
4000 cfm
COOLMIN
COOLMAX
REHEAT
HEATMIN
HEATMAX
FNONCFM
DDCVFLOW
0%
100 %
0%
0%
100 %
12.5 %
CMINPOS
CMAXPOS
REMINPOS
HMINPOS
HMAXPOS
DB_PCT
37
1001
Reheat Minimum Position (PD) — This configuration is for
single duct units with ducted reheat. Configure the desired
damper position at which the reheat will provide optimum performance. This value is compared to the Minimum Cool value
and the greater of the two values is used to determine the
damper position.
Reheat Minimum
Position:
Units
%
Range
0 to 100
Default Value
0
Heat Minimum Position (PD) — This configuration is the
Minimum damper position the terminal will control to when
the equipment mode is Warm-Up or Heat. If the terminal is not
configured for VAV central heating this is the only position the
terminal will control to for these equipment modes.
Heat Minimum
Position:
Units
%
Range
0 to 100
Default Value
0
Heat Maximum Position (PD) — This configuration is used
to configure the maximum damper position at which the zone
controller will operate if VAV central heat is configured to yes.
If the equipment mode is Heat or Warm-Up and the demand in
the space is for heat the zone controller will calculate the proper damper position needed to achieve space temperature set
point, operating between the Heat Min and Heat Max.
Heat Maximum
Position:
Units
%
Range
0 to 100
Default Value
100
Deadband Percent — This configuration is used to configure
the Deadband Percent that the airflow will operate with.
Deadband
Percent:
Units
%
Range
0.0 to 100.0
Default Value
12.5
TERMINAL SERVICE CONFIGURATION SCREEN —
The Terminal Service Configuration screen lists the main configuration settings for the air terminal controller. See Table 10.
Terminal Type — This configuration is used to indicate the
terminal type that the zone controller is installed on. A 1 is for
Single Duct terminals, a 2 is for Parallel Fan terminals, a 3 is
for Series Fan terminals, and a 4 is for Dual Duct applications.
Terminal Type: Range
1 to 4
Default Value
1
Primary Inlet Size — The Primary Inlet Size configuration is
used to input the inlet diameter of the terminal if used with a
round inlet. The Inlet Area configuration is used for oval or
rectangular inlets. The zone controller will use the larger value
for CFM calculations if both values are configured.
NOTE: Carrier sizes 12, 14, and 16 are oval.
Primary Inlet Size
(Inlet Diameter): Units
Inches
Range
3.0 to 24.0
Default Value
6.0
Inlet Area — The Inlet Area configuration is used if the terminal has an oval or rectangular inlet. The Primary Inlet Size
configuration is used for round inlets. The zone controller will
use the larger value for CFM calculations if both values are
configured.
Inlet Area:
Units
Square Inches
Range
0.0 to 500.0
Default Value
0.0
Heat Minimum (PI) — This configuration is the minimum
airflow the terminal will control to when the equipment mode
is Warm-Up or Heat. If the terminal is not configured for VAV
central heating this is the only airflow the terminal will control
to for these equipment modes.
Heat Minimum: Units
CFM
Range
0 to 9999 (Limited by
the High Velocity pressure limit alarm)
Default Value
0
Heat Maximum (PI) — This configuration is used to configure the maximum airflow at which the zone controller will operate if VAV central heat is configured to yes. If the equipment
mode is heat or warm-up, and the demand in the space is for
heat, the zone controller will calculate the proper airflow needed to achieve space temperature set point (operating between
the Heat Min and Heat Max).
Heat Maximum: Units
CFM
Range
0 to 9999 (Limited by
the High Velocity pressure limit alarm)
Default Value
4000
Parallel Fan On (PI) — This configuration is used to define
the primary airflow setting below which a parallel fan terminal
should energize its fan. The setting should be used to allow a
low volume of primary airflow to be better diffused into the
space.
Parallel Fan On: Units
CFM
Range
0 to 9999 (Limited by
the High Velocity pressure limit alarm)
Default Value
0
Dual Duct CV Airflow (PI) — This configuration defines the
Dual Duct, constant volume, total airflow set point.
Dual Duct
Airflow:
Units
CFM
Range
0 to 9999 (Limited by
the High Velocity pressure limit alarm)
Default Value
4000
Pressure Dependent — Pressure Dependent (PD) set points
should be configured for backup pressure dependent operation,
if an operating problem with the pressure transducer occurs.
IMPORTANT: Pressure dependent settings are
included for use only in the event of a pressure transducer failure. The inclusion of these configuration settings does not indicate that Carrier is endorsing this
product for pressure dependent operation. In the case
of a pressure sensor failure, the zone controller will
broadcast a pressure sensor failure message on the
CCN bus. These configurations may be used by a service technician to put the terminal in pressure dependent mode until the zone controller can be replaced.
Cool Minimum Position (PD) — This configuration is the
minimum damper position the terminal will control to when
the equipment mode is Cooling (or Fan Only), or free cooling
and the space requirements for cooling are at a minimum.
Cool Minimum
Position:
Units
%
Range
0 to 100
Default Value
0
Cool Maximum Position (PD) — This configuration is the
maximum damper position the terminal will control to when
the equipment mode is cooling (or fan only), or free cooling
and the space requirements for cooling are at a maximum.
Cool Maximum
Position:
Units
%
Range
0 to 100
Default Value
100
38
Table 10 — Terminal Service Configuration Screen
DESCRIPTION
COOLING
Terminal Type
Primary Inlet Size
Inlet Diameter
Inlet Area
Probe Multiplier
Calibration Gain
Offset
Damper
Proportional Gain
Integral Gain
Derivative Gain
Starting Value
CW Rotation
Pressure Independent
HEATING
Heat Type
VAV Central Heating
Heating
Proportional Gain
Integral Gain
Derivative Gain
Starting Value
Ducted Heat
Maximum Temperature
Number of Electric Heat Stages
Heat On Delay
Fan Off Delay
2-Position Heat Logic
SPT Trim
SAT Trim
Remote Contact Configuration
DEFAULT
POINT NAME
1
TERMTYPE
6.0 in.
0.0 in.
2.443
1.000
0 cfm
RNDSZ
SQA
PMF
CAL_GAIN
OFFSET
30.0
5.0
0.0
20 %
Close
Yes
KP
KI
KD
STARTVAL
DMPDIR
PRESIND
0
Yes
HEATTYPE
CENHEAT
8.0
3.0
0.0
80 F
Yes
110 F
1
2
2
Normal
0.0 F
0.0 F
Close
KP
KI
KD
STARTVAL
DUCTHEAT
MAXTEMP
STAGES
HONDEL
FNOFFD
HEATYPE
SPTTRIM
SATTRIM
RMTCFG
→ Probe Multiplier — This configuration is used to input a factor
for the velocity pressure probe installed in the terminal inlet.
Most inlet probes will have some aerodynamic characteristics
that will affect the differential pressure output from the probe.
The formula used by the ComfortID™ controller for calculating the airflow (cfm) is based on measuring velocity with a
Pitot tube probe. A PMF (Pitot measurement factor) is required
in the calculation for different probes. Because various probe
characteristics are different, the PMF is used to determine the
correct airflow based on the type of probe installed. The PMF
will compensate for the difference between Pitot-type probes
and the actual probe installed.
The default PMF value of 2.273 is the correct value to use
when the zone controller is used with a Carrier probe in a
Carrier air terminal. For terminals and probes supplied by other
manufacturers, the PMF must be calculated and entered into
the zone controller configuration in order to correctly measure
airflow.
To determine the correct PMF value, there are several methods depending on the data supplied by the terminal manufacturer. The manufacturer may supply a “K factor” or may supply a chart of velocity pressure vs. airflow for the terminal. The
K factor is the actual airflow velocity at a velocity pressure
reading of 1 in. wg for the probe. This value is in ft/min and
can be used to calculate the PMF. When the K factor is entered
into the following equation, it is compared to the value of 4005,
which is the K factor for a Pitot tube probe:
PMF = (4005/K FACTOR)2
If a chart is supplied by the manufacturer instead of the K
factor, then the K factor can be calculated from the chart using
the following formula:
K FACTOR = (cfm at 1-in. wg)/(duct area ft2)
As an example, an air terminal with an 8-in. round inlet is
used. The terminal manufacturer has provided an airflow chart
that gives an airflow value of 820 cfm at a velocity pressure
reading of 1 in. wg. To determine the PMF for the terminal:
1. Determine duct area.
radius of duct = diameter of duct/2
radius = 8-in./2-in.
radius = 4-in.
Area of circular duct = Πr2
Area = 3.14159 x 42
Area = 3.14159 x 16
Area = 50.26-in.2
Area must be in ft2
50.26-in.2/(144-ft2) = 0.34906 ft2
2. Determine K factor.
K factor = (820 cfm/0.34906 ft2)
K factor = 2349 fpm
3. Determine PMF.
PMF = (4005 fpm/2349 fpm)2
PMF = 2.907
Another way to determine the probe constant for a probe
without documentation is to measure the velocity pressure with
a Magnahelic gage. Open the damper and adjust the static pressure or open the damper until you have one inch of velocity
pressure on the Magnahelic gage. Measure the total CFM of air
being delivered. The CFM just measured divided by the inlet
area in square feet should equal the K factor for the formula.
Now use the K factor that was empirically derived to determine
the probe multiplier.
Probe Multiplier: Range
0.250 to 9.999
Default Value
2.443
Calibration Gain — Air terminal testing by industry standards
is done with straight duct, upstream of the terminal. Since some
applications do not get installed in this manner, the actual airflow from the terminal at balancing may not equal the reading
from the zone controller.
39
303
The calibration gain is used for the fine tuning adjustments
which might need to be made to the airflow calculation. This
number is calculated automatically by the zone controller after
input to the air balance maintenance screen, or it can be input
manually at this screen. For ease of use it is recommended to
use the Air Balance Maintenance screen to determine this number. The Air Balancing Maintenance screen will cause the value to be updated during the balancing procedure.
If the Calibration Gain must be configured manually, it is
determined as a percentage up or down that the CFM indicated
will be offset. A number of .95 will cause the maximum airflow calculated to be reduced to 95% of the value. A Calibration Gain of 1.00 will cause no change. A number of 1.05
would cause readings to become 5% higher.
The Calibration Gain is adjusted on the Air Balance Maintenance screen when performing the Maximum Airflow calibration and will have the greatest effect on the airflow at maximum CFM. Any error in reading at minimum airflow is adjusted by calculating the Offset configuration value. After
performing the air balance using the Air Balance Maintenance
screen it is a good idea to upload and save the Calibration Gain
and Offset values.
Calibration Gain: Range
0.000 to 9.999
Default Value
1.000
Offset — The Offset configuration is included for precision
applications where the minimum airflow is critical and not zero. This configuration indicates the amount of CFM the transducer is off by, at minimum airflow, during the minimum airflow test on the air balance screen. This configuration should
not be used to zero the airflow transducer since an auto zero
test is included on the air balance screen and is also automatically performed each time the equipment fan is disabled (or
every 72 hours for systems which run the fan continuously).
After performing the air balance testing using the Air Balance
Maintenance screen it is a good idea to upload and save the
Calibration gain and Offset values. The cfm will be offset by
the value entered in the Minimum Cfm variable and will zero
at the value entered in the Maximum Cfm variable. There will
be a linear relationship between the two set points.
Offset:
Units
cfm
Range
-250 to 250
Default Value
0
Damper Loop Parameters — The loop gains and start value
define how the terminal will respond to deviations in measured
CFM in order to control to the airflow set point.
The Proportional Gain is calculated each time the airflow is
compared to the active airflow set point. As the error from set
point goes to zero, the proportional term will also go to zero.
The Integral Gain is a running summation of all integral
terms since the loop started. This has the effect of trimming off
any offset from the set point which might occur, if only the proportional term existed. Normally a proportional loop with no
integral term would require frequent adjustments of the starting
value to eliminate the offset as static pressure and other conditions change.
The Derivative Gain is not needed. The Derivative Gain
would tend to nullify large changes in the Proportional Gain for
dampened response. These large changes in the Proportional
Gain do not tend to happen for this type of control.
Damper Loop Parameters
Proportional Gain:Range
00.0 to 99.9
Default Value
30.0
Integral Gain:
Range
Default Value
Derivative Gain: Range
Default Value
801
Start Value:
Units
%
Range
0 to 100
Default Value
20
Clockwise Rotation — This configuration is used to define
what effect a clockwise rotation of the actuator will have on the
damper. If the actuator rotates clockwise to closed position, the
configuration should be set to Close. If the actuator rotates
clockwise to open, the configuration should be set to open.
This configuration is used to change the rotation of the actuator
so that the damper transducer calibration will work properly.
The actuator does not have to be re-installed nor any switches
changed to reverse the action.
Clockwise
Rotation:
Range
Close/Open
Default Value
Close
Pressure Independent — This configuration defines if the terminal will function in the pressure independent or pressure dependent mode.
NOTE: Pressure dependent mode should only be used in an
emergency, if the pressure sensor is not functioning.
Pressure
Independent:
Range
No/Yes
Default Value
Yes
→ Heat Type — This configuration is used to define the type of
heat installed on the terminal. A 0 is equal to None. A 1 is
equal to Modulating/VAV. A 2 is equal to Two Position. A 3 is
equal to staged Electric. A 4 is equal to Modulating/CV.
Heat Type:
Range
0 to 4
Default Value
0
VAV Central Heating — The VAV Central Heating configuration is used if the air source has the ability to provide heat and
the terminal is required to modulate, using the heat minimum
and heat maximum airflows, when the air source is in the heat
mode. If this variable is set to No, the terminal will use its
available local heat to heat the zone at all times.
VAV Central
Heating:
Range
No/Yes
Default Value
Yes
Heating Loop Parameters — The heating loop gains and start
value define how the terminal will respond to deviations in
measured space temperature in order to control to the heat set
point.
The Proportional Gain is calculated each time the space
temperature is compared to the heat set point. As the error
from set point goes to zero, the Proportional Gain will also go
to zero.
The Integral Gain is a running summation of all integral
terms since the loop started. This has the affect of trimming off
any offset from set point which might occur if only the Proportional Gain existed. Normally a proportional loop with no Integral Gain would require frequent adjustments of the starting
value to eliminate the offset as loading conditions on the room
change.
The Derivative Gain is not needed. This term tends to nullify large changes in the Proportional Gain for dampened
response.
Heating Loop Parameters
Proportional Gain: Range
00.0 to 99.9
Default Value
8.0
Integral Gain:
00.0 to 99.0
5.0
Range
Default Value
Derivative Gain: Range
Default Value
00.0
0.0
40
00.0 to 99.0
3.0
00.0
0.0
Space Temperature Trim — This configuration is used to trim
a space sensor which might need calibration. For example, if
the temperature displayed is two degrees above the value measured with calibrated test equipment, input a value of –2.0.
Space Temperature
Trim:
Units
delta F (delta C)
Range
–9.9 to 9.9
Default Value
0.0
Supply Air Temperature Trim — This configuration is used
to trim a supply air sensor which might need calibration. For
example, if the temperature displayed is two degrees above the
value measured with calibrated test equipment, input a value of
–2.0.
Supply Air Temperature
Trim:
Units
delta F (delta C)
Range
–9.9 to 9.9
Default Value
0.0
→ Remote Contact Config — The remote timeclock contact input can be configured as a normally open or normally closed
contact. When the timeclock input is ‘On’ the zone will follow
it’s local occupancy schedule. When the timeclock input is
‘Off’ the zone will be forced into unoccupied state.
Remote Contact
Config:
Range
Close/Open
Default Value
Close
OPTIONS SERVICE CONFIGURATION SCREEN —
The Options Service Configuration screen is used to configure
the service options of the air terminal controller. See Table 11.
Occupancy Schedule Number — The Occupancy Schedule
Number defines what Occupancy schedule the zone controller
will use. Occupancy Schedule 64 is a local schedule. Occupancy Schedules 65 to 99 are global schedules.
Occupancy Schedule
Number:
Range
64 to 99
Default Value
64
Global Schedule Master — The Global Schedule Master configuration allows the Occupancy Schedule to be used as a Global Schedule Master (Occupancy Schedules 65-99).
Global Schedule
Master:
Range
No/Yes
Default Value
No
Start Value:
Units
F (C)
Range
40 to 125
Default Value
80
Ducted Heat — The Ducted Heat configuration is used to configure the terminal for ducted heat. If a local heat source is in
the duct and requires airflow to provide heat, set the Ducted
Heat configuration for yes.
Ducted Heat
Range
No/Yes
Default Value
Yes
Maximum Duct Temperature — This configuration is used to
configure the maximum supply-air temperature desirable for
heating the space. This will cause the heat to be modulated or
cycled using this value as the maximum temperature of the air
to be supplied.
Maximum Duct
Temperature:
Units
F (C)
Range
40 to 200
Default Value
110
Number of Electric Stages — This configuration is used to
define the number of stages of electric heat controlled by the
zone controller.
Number of
Electric Stages: Range
1 to 3
Default Value
1
Heat On Delay — The Heat On Delay configuration is used to
define a delay from the time a parallel terminal fan is started
until the heat is activated.
Heat On Delay: Units
minutes
Range
1 to 60
Default Value
2
Fan Off Delay — The Fan Off Delay configuration is used to
define a delay time. The delay time is from when the heat is deactivated (in a parallel terminal) until the parallel fan is deactivated. This allows the fan to circulate air and remove the residual heat from the heat source.
Fan Off Delay: Units
minutes
Range
1 to 15
Default Value
2
Two-Position Heat Logic — This configuration is used for
controlling a normally closed or normally open valve for hot
water. Use normal logic if the valve is normally closed. Use inverted logic if the valve is normally open.
Two Position
Heat Logic:
Range
Normal/Invert
Default Value
Normal
Table 11 — Options Service Configuration Screen
DESCRIPTION
Occupancy Schedule Number
Global Schedule Master
Override
Broadcast Acknowledge
Set Point Group Number
Global Set Point Master
Maximum Offset Adjust
Control Options
Humidity
Proportional Gain
Integral Gain
Maximum Output Value
Air Quality
Proportional Gain
Integral Gain
Maximum Output Value
AQ Low Voltage
AQ High Voltage
AQ Low Reference
AQ High Reference
DEFAULT
64
No
00:00
No
0
No
2F
0
POINT NAME
SCH
GSM
OVR
BCACK
SETT
GSTM
LIMT
CTLOPT
1.5
0.30
100.0 cfm
KP
KI
MAXOUT
0.10
0.03
100.0 cfm
0.0
10.0
0 ppm
2000 ppm
KP
KI
MAXOUT
AQINLO
AQINHI
AQLO
AQHI
41
801
Override — The Override parameter is used to configure the
number of hours and minutes the override will be in effect. The
user initiates override by pressing the override button on the
space temperature sensor. This will cause the schedule to enter
into the Occupied mode. If global scheduling is used, all zones
using the global schedule will enter Occupied mode. Pushing
the override button during Occupied mode will have no effect.
If the occupancy override is due to end after the start of the
next occupancy period, the mode will transition from occupancy override to occupied without becoming unoccupied, and the
occupancy override timer will be reset.
NOTE: If using the tenant billing function, the override
hours set point must be configured between 1 and 3 hours.
Override:
Units
Hours: Minutes
Range
00:00 to 24:00
Default Value
00:00
Broadcast Acknowledger — This configuration defines if the
zone controller will be used to acknowledge broadcast messages on the CCN bus. One broadcast acknowledger is required
per bus, including secondary busses created by the use of a
bridge.
Broadcast
Acknowledger: Range
No/Yes
Default Value
No
Set Point Group Number — The Set Point Group Number is
used to define the current zone controller as a part of a group of
zone controllers which share the same set points. All zone controllers with the same Set Point Group Number will have the
same set points. The set points are broadcast to the group by the
zone controller defined by the Global Set Point Master configuration. A value of 0 is a local schedule. Values 1 to 16 are used
for global scheduling.
Set Point
Group Number: Range
0 to 16
Default Value
0
Global Set Point Master — This configuration defines if the
current zone controller will broadcast its set point values to the
other zone controllers which are made part of the same group
by configuring the Set Point Group Number.
Global Set Point
Master:
Range
No/Yes
Default Value
No
Maximum Offset Adjustment — This configuration determines the maximum amount that the set point will be biased
(up or down), by adjusting the slide bar on the space temperature sensor (if installed).
Maximum Offset
Adjustment:
Units
delta F (delta C)
Range
0 to 15
Default Value
2
Control Options — The Control Options configuration determines whether the zone controller will use a humidity sensor or
an indoor air quality sensor. A configuration of 0 means no
sensors are used. A configuration of 1 means a Humidity Sensor is used. A configuration of 2 means an IAQ Sensor is used.
Control Options: Range
0 to 2
Default Value
0
Humidity Control — These configuration values define the
calculation parameters for determining the airflow needed to
correct a high humidity problem in the space. The Maximum
Output Value is measured in percentage of nominal terminal
cfm.
Proportional
Gain:
Range
0.0 to 9.9
Default Value
1.5
800
Integral Gain:
Range
Default Value
0.00 to 9.99
0.30
Maximum Output
Value:
Range
0.0 to 100.0% (max cool
cfm)
Default Value
100.0
Indoor Air Quality Control — These configuration values define the calculation parameters for determining the airflow
needed to correct a high incidence of air pollution contaminants in the space, such as CO2. The Maximum Output Value is
measured in percentage of nominal terminal cfm.
Proportional Gain:Range
0.00 to 9.99
Default Value
0.10
Integral Gain:
Range
Default Value
0.00 to 9.99
0.03
Maximum Output
Value:
Range
0.0 to 100.0% (max cool
cfm)
Default Value
100.0
→ IAQ Sensor Low Voltage — This configuration defines the
lowest voltage which should be read from the air quality
sensor.
IAQ Sensor
Low Voltage:
Range
00.0 to 10.0
Default Value
0.0
IAQ Sensor High Voltage — This configuration defines the
highest voltage which should be read from the air quality sensor.
IAQ Sensor
High Voltage:
Range
00.0 to 10.0
Default Value
10.0
IAQ Low Reference — This configuration defines the value
in parts per million which correlate to the low voltage reading
from the air quality sensor.
IAQ Low
Reference:
Units
ppm (parts per million)
Range
0 to 5000
Default Value
0
IAQ High Reference — This configuration defines the value
in parts per million which correlate to the high voltage reading
from the air quality sensor.
IAQ High
Reference:
Units
ppm (parts per million)
Range
0 to 5000
Default Value
2000
SECONDARY DAMPER SERVICE CONFIGURATION
SCREEN — The Secondary Damper Service Configuration
screen is used to configure the secondary damper settings. See
Table 12.
Zone Pressure Control — The Zone Pressure Control configuration determines whether the primary and secondary controllers will be configured for zone pressure control.
Zone Pressure
Control:
Range
Dsable/Enable
Default Value
Dsable
Dual Duct Type — The Dual Duct Type setting configures the
secondary controller for the correct dual duct type. A value of 0
configures the type to None. A value of 1 configures the type to
Second Inlet (Hot Deck). A value of 2 configures the duct to
Total Probe (terminal outlet).
Dual Duct Type: Range
0 to 2
Default Value
0
42
Table 12 — Secondary Damper Service Configuration Screen
DESCRIPTION
Zone Pressure Control
Dual Duct Type
Secondary Duct Size
Inlet Diameter
Inlet Area
Probe Multiplier
Calibration Gain
Offset
CW Rotation
Secondary Duct Size — The Secondary Duct Size setting is
used to input the inlet diameter of the terminal, if used with a
round inlet. The Inlet Area configuration is used for oval or
rectangular inlets. The zone controller will use the larger value
for CFM calculations if both values are configured.
Secondary Duct Size
(Inlet Diameter): Units
Inches
Range
3.0 to 24.0
Default Value
6.0
Inlet Area — The Inlet Area configuration is used if the terminal has an oval or rectangular inlet. The Primary Inlet Size
configuration is used for round inlets. The zone controller will
use the larger value for CFM calculations if both values are
configured.
Inlet Area:
Units
Square Inches
Range
0.0 to 500.0
Default Value
0.0
Probe Multiplier — This configuration is used to input a factor for the velocity pressure probe characteristics installed in
the inlet. All averaging probes will have some aerodynamic
characteristics which will amplify the pressure difference read
at the inlet of the terminal. The default of 2.443 is the correct
value to use if the probe is a Carrier probe in a 35 or 45 Series
terminal.
The formula for calculating velocity using an Ideal probe is:
Velocity = 4005* SQRT (Velocity Pressure)
Most manufactures will provide a probe constant for the
probe supplied. For example, Velocity = 2213*SQRT(Velocity
Pressure). To calculate the number to input in this decision
(Probe Multiplier) use the formula. (4005/2213)2 = 3.3. So you
would use 3.3 in place of 2.443 for a probe with a probe constant of 2213.
An easy way to determine the probe constant for a probe
without documentation is to measure the velocity pressure with
a Magnahelic gage. Open the damper and adjust the static pressure until you have one inch of velocity pressure on the Magnahelic gage. Measure the total CFM of air being produced. The
CFM just measured divided by the inlet area in feet should
equal the probe constant for the formula. Velocity = (CFM just
measured/inlet area) * SQRT (1.0). Now use the constant that
was empirically derived to determine the probe multiplier
(4005/(CFM at 1.0 Inch/Inlet area))2 = Probe Multiplier.
Probe Multiplier: Range
0.250 to 9.999
Default Value
2.443
Calibration Gain — Air terminal testing by industry standards
is done with straight duct, upstream of the terminal. Since most
applications do not get installed in this manner, the actual airflow from the terminal at balancing may not equal the reading
from the zone controller.
The calibration gain is used for the fine tuning adjustments
which might need to be made to the airflow calculation.
If the Calibration Gain must be configured manually. It is
determined as a percentage up or down that the CFM indicated
DEFAULT
Dsable
0
POINT NAME
ZPCNTL
DDTYPE
6.0 in.
0.0 sq. in.
2.443
1.000
0 cfm
Close
SRNDSZ
SSQA
SPMF
CAL_GAIN
SOFFSET
DMPDIR
will be offset. A number of .95 will cause the maximum airflow calculated to be reduced to 95% of the value. A Calibration Gain of 1.00 will cause no change. A number of 1.05
would cause readings to become 5% higher.
Any error in reading at minimum airflow is adjusted by calculating the Offset configuration value.
Calibration Gain: Range
0.000 to 9.999
Default Value
1.000
Offset — The Offset configuration is included for precision
applications where the minimum airflow is critical and not
zero. The cfm will be offset by the value entered in the Minimum Cfm variable and will zero at the value entered in the
Maximum Cfm variable. There will be a linear relationship between the two set points.
Offset:
Units
cfm
Range
–250 to 250
Default Value
0
Clockwise Rotation — This configuration is used to define
what effect a clockwise rotation of the actuator will have on the
damper. If the actuator rotates clockwise to closed position, the
configuration should be set to Close. If the actuator rotates
clockwise to open, the configuration should be set to open.
This configuration is used to change the rotation of the actuator
so that the damper transducer calibration will work properly.
The actuator does not have to be reinstalled nor any switches
changed to reverse the action.
Clockwise
Rotation:
Range
Close/Open
Default Value
Close
Maintenance Table Menu Screen — The Maintenance Table Menu screen allows the user to select one of 4
available maintenance tables: the Linkage Maintenance Table,
the Occupancy Maintenance Table, the Zone Air Balance
Table, and the Zone Maintenance Table.
LINKAGE MAINTENANCE TABLE — The Linkage
Maintenance table is used to view the zone linkage variables.
See Table 13.
→ Air Source Bus Number — This variable will display the bus
number of the air source that the zone controller will be communicating Linkage to, if this zone is the Linkage Master.
Air Source
Bus Number:
Range
0 to 239
Default Value
0
Network Access None
→ Air Source Element Number — This variable will display the
Element Address of the Air Source that the zone controller
will be communicating Linkage to, if this zone is the Linkage
Master.
Air Source
Element Number: Display Range
1 to 239
Default Value
0
Network Access None
43
501
Average Unoccupied Cool Set Point — This variable displays the weighted average of the unoccupied cool set point,
calculated by the linkage coordinator, from the information received from polling its associated zones. The set points are
weighted by the maximum airflow capacities of the zone controllers scanned by the linkage coordinator.
Average Occupied
Cool Set Point: Display Units
F (C)
Display Range
0.0 to 99.9
Default Value
0.0
Network Access None
Average Zone Temperature — This variable displays the
weighted average of the space temperatures, collected by the
linkage coordinator, from polling its associated zones. The
temperatures are weighted by the maximum airflow capacities
of the zone controllers scanned by the linkage coordinator.
Average Zone
Temperature:
Display Units
F (C)
Display Range
0.0 to 99.9
Default Value
0.0
Network Access Read Only
Average Occupied Zone Temperature — This variable displays the weighted average of the space temperatures of occupied zones, collected by the linkage coordinator, from polling
its associated zones. The temperatures are weighted by the
maximum airflow capacities of the zone controllers scanned by
the linkage coordinator.
Average Occupied
Zone Temperature:Display Units
F (C)
Display Range
0.0 to 99.9
Default Value
0.0
Network Access Read Only
→ Composite CCN Value — This variable displays the high, low
or average of the CCN variable collected from each zone as
configured in the Linkage Coordinator Configuration Screen.
The value is sent to the CCN address and variable specified
within that configuration table.
Composite
CCN Value:
Display Range
0-65535
Default Value
0
Network Access Read Only
Occupancy Status — This variable displays a “1” when at
least one of the associated zone controllers (that are being
scanned) is in the occupied mode.
Occupancy Status:Display Range
0 or 1 (1 = occupied)
Default Value
0
Network Access Read only
Next Occupied Day — This variable displays the day when
the next associated zone is scheduled to change from unoccupied to occupied mode. This point is read in conjunction with
the next occupied time to allow the user to know the next time
and day when a zone will become occupied.
Next Occupied
Day:
Display Range
MON, TUE, WED,
THU, FRI, SAT, SUN
Default Value
No display (Blank)
Network Access None
Next Occupied Time — This variable displays the time of day
when the next associated zone is scheduled to change from unoccupied to occupied mode. This point is read in conjunction
with the next occupied day to allow the user to know the next
time and day when a zone will become occupied.
Next Occupied
Time:
Display Range
00:00 to 24:00
Default Value
0:00
Network Access None
Master Zone Element Number — This variable will display
the element address of the zone which is the Linkage Master.
Master Zone
Element Number: Display Range
1 to 239
Default Value
0
Network Access Read only
Operating Mode — This variable will display the current operating mode of the air source, if Linkage is available, or the
mode determined by the Linkage Master using the primary air
sensor, if available. If the primary air sensor has failed or was
not installed, the Linkage master will assume the default mode
of cooling.
Operating Mode: Display Range
COOLING, HEATING,
WARM-UP, FREECOOL, PRESSURE,
EVAC, OFF
Default Value
OFF
Network Access Read only
Air Source Supply Temperature — This variable displays the
supply temperature reading of the air source.
Air Source Supply
Temperature:
Units
F (C)
Display Range
-40 to 245
Default Value
0
Network Access None
Start Bias Time — This variable displays the Start Bias Time,
in minutes, calculated by the air source. The Start Bias Time is
calculated to bring the temperature up or down to the set point
under the optimum start routine. This value will be sent to all
associated zones for optimum start of zone controllers. This
function is supported by all Carrier equipment which perform
linkage.
Start Bias Time: Display Units
minutes
Display range
0 to 185
Default Value
0
Network Access None
Average Occupied Heat Set Point — This variable displays
the weighted average of the occupied heat set point, calculated
by the linkage coordinator, from the information received from
polling its associated zones. The set points are weighted by the
maximum airflow capacities of the zone controllers scanned by
the linkage coordinator.
Average Occupied
Heat Set Point: Display Units
F (C)
Display Range
0.0 to 99.9
Default Value
0.0
Network Access None
Average Occupied Cool Set Point — This variable displays
the weighted average of the occupied cool set point, calculated
by the linkage coordinator, from the information received from
polling its associated zones. The set points are weighted by the
maximum airflow capacities of the zone controllers scanned by
the linkage coordinator.
Average Occupied
Cool Set Point: Display Units
F (C)
Display Range
0.0 to 99.9
Default Value
0.0
Network Access None
Average Unoccupied Heat Set Point —This variable displays
the weighted average of the unoccupied heat set point, calculated by the linkage coordinator, from the information received
from polling its associated zones. The set points are weighted
by the maximum airflow capacities of the zone controllers
scanned by the linkage coordinator.
Average Unoccupied
Heat Set Point: Display Units
F (C)
Display Range
0.0 to 99.9
Default Value
0.0
Network Access None
801
44
→ Table 13 — Linkage Maintenance Screen
DESCRIPTION
Air Source Bus Number
Air Source Element Number
Master Zone Element Number
Operating Mode
Air Source Supply Temperature
Start Bias Time
Average Occupied Heat Set Point
Average Occupied Cool Set Point
Average Unoccupied Heat Set Point
Average Unoccupied Cool Set Point
Average Zone Temperature
Average Occupied Zone Temperature
Composite CCN Value
Occupancy Status
Next Occupied Day
Next Occupied Time
Next Unoccupied Day
Next Unoccupied Time
Previous Unoccupied Day
Previous Unoccupied Time
Maximum Damper Position
Static Pressure Reset
Pressure Decrease Value
Pressure Increase Value
DEFAULT
0
0
0
OFF
0F
0 minutes
0.0 F
0.0 F
0.0 F
0.0 F
0.0 F
0.0 F
0
0
(blank)
00:00
(blank)
00:00
(blank)
00:00
0.0 %
0.0 in. wg
0.000 in. wg
0.000 in. wg
Next Unoccupied Day — This variable displays the day when
the next associated zone is scheduled to change from occupied
to unoccupied mode. This point is read in conjunction with the
next unoccupied time to allow the user to know the next time
and day when a zone will become unoccupied.
Next Unoccupied
Day:
Display Range
MON, TUE, WED,
THU, FRI, SAT, SUN
Default Value
No display (Blank)
Network Access None
Next Unoccupied Time — This variable displays the time of
day when the next associated zone is scheduled to change from
occupied to unoccupied mode. This point is read in conjunction
with the next unoccupied day to allow the user to know the
next time and day when a zone will become unoccupied.
Next Unoccupied
Time:
Display Range
00:00 to 24:00
Default Value
0:00
Network Access None
Previous Unoccupied Day — This variable displays the day
when the last associated zone changed from occupied to unoccupied mode. This point is read in conjunction with the previous unoccupied time to allow the user to know the last time and
day when a zone became unoccupied.
Previous Unoccupied
Day:
Display Range
MON, TUE, WED,
THU, FRI, SAT, SUN
Default Value
No display (Blank)
Network Access None
Previous Unoccupied Time — This variable displays the time
of day when the last associated zone changed from occupied to
unoccupied mode. This point is read in conjunction with the
previous unoccupied day to allow the user to know the last time
and day when a zone became unoccupied.
Previous Unoccupied
Time:
Display Range
00:00 to 24:00
Default Value
0:00
Network Access None
POINT NAME
ASBUSNUM
ASDEVADR
MZDEVADR
ASOPMODE
ASTEMP
STRTBIAS
AOHS
AOCS
AUHS
AUCS
AZT
AOZT
CCCNVAL
OCCSTAT
NXTOCCD
NXTOCCT
NXTUNOD
NXTUNOT
PREVUNOD
PRVUNOT
MAXDMPOS
PRESVAL
PRESDECR
PRESINCR
Maximum Damper Position — This variable displays the
damper position of the zone controller in the system with the
damper in the most open position. This is used by the linkage
coordinator to calculate the static pressure reset.
Maximum Damper
Position:
Display Units
% (open)
Display Range
0.0 to 100.0
Default Value
0.0
Network Access Read/Write
Static Pressure Reset — This variable displays the current
static pressure reset calculated, using the maximum damper position and the configuration information from the linkage configuration table.
Static Pressure
Reset:
Display Units
in. wg
Display Range
0.0 to 5.0
Default Value
0.0
Network Access Read/Write
Pressure Decrease Value — If the maximum damper position
in the system goes below the minimum configuration setting,
the linkage coordinator will calculate an amount that the static
pressure should be decreased. This is used to open the system
dampers more so that they will modulate between their minimum and maximum settings.
This number is rounded to the nearest tenth of an inch and
will be added to the static pressure reset value unless the static
pressure reset value has reached maximum reset.
Pressure Decrease
Value:
Display Units
in. wg
Display Range
0.000 to 5.000
Default Value
0.000
Network Access Read/Write
Pressure Increase Value — If the maximum damper position
in the system goes above the maximum configuration setting,
the linkage coordinator will calculate an amount that the static
pressure should be increased. This is used to close the system
dampers more so that they will modulate between their minimum and maximum settings.
45
801
This number is rounded to the nearest tenth of an inch and
will be subtracted to the static pressure reset value unless the
static pressure reset value has reached zero.
Pressure Increase
Value:
Display Units
in. wg
Display Range
0.000 to 5.000
Default Value
0.000
Network Access Read/Write
OCCUPANCY MAINTENANCE TABLE — The Occupancy Maintenance table is used to view the occupancy set
points. See Table 14.
Mode — This variable displays the current occupied mode for
the zone controller. If the zone controller is following its own
local schedule, this is the result of the local schedule status. If
the zone controller is configured to follow a global schedule,
this point displays the mode last received from a global schedule broadcast.
Mode:
Display Range
0 or 1 (1 = occupied)
Default Value
0
Network Access None
Current Occupied Period — If the zone controller is configured to determine occupancy locally, this variable will display
the current period determining occupancy.
Current Occupied
Period:
Display Range
1 to 8
Default Value
0
Network Access None
Override in Progress — If an occupancy override is in
progress, this variable will display a yes.
Override In
Progress:
Display Range
Yes/No
Default Value
No
Network Access None
Override Duration — This variable displays the number of
minutes remaining for an occupancy override which is in
effect. If the number of override hours was downloaded, the
value will be converted to minutes.
Override
Duration:
Display Units
minutes
Display Range
0 to 1440
Default Value
0
Network Access None
Occupied Start Time — This variable displays the time that
the current occupied mode began. If the current mode is unoccupied or the zone controller is following a global schedule, the
value displayed by this point will be 0:00.
Occupied Start
Time:
Display Range
00:00 to 23:59
Default Value
0:00
Network Access None
Unoccupied Start Time — This variable displays the time that
the current occupied mode will end (the beginning of the next
unoccupied mode). If the current mode is unoccupied or the
zone controller is following a global schedule, the value displayed by this point will be 0:00.
Unoccupied Start
Time:
Display Range
00:00 to 24:00
Default Value
0:00
Network Access None
Next Occupied Day — This variable displays the day when
the next occupied period is scheduled to begin. This point is
read in conjunction with the next occupied time to allow the
user to know the next time and day when the next occupied period will occur. If the zone controller is following a global
schedule this point will remain at default.
NOTE: If the current mode is occupied, this point makes reference to the next occupied period and, in most cases, may not
be the same as the current occupied start time.
Next Occupied
Day:
Display Range
MON, TUE, WED,
THU, FRI, SAT, SUN
Default Value
No display (Blank)
Network Access None
→ Next Occupied Time — This variable displays the time of day
when the next occupied period will occur. This point is read in
conjunction with the next occupied day to allow the user to
know the next time and day when the zone will become occupied. If the zone controller is following a global schedule this
point will remain at default.
NOTE: If the current mode is occupied, this point makes
reference to the next occupied period and, in most cases,
may not be the same as the current occupied start time.
Next Occupied
Time:
Display Range
00:00 to 24:00
Default Value
0:00
Network Access None
→ Next Unoccupied Day — This variable displays the day when
the next unoccupied period is scheduled to begin. This point is
read in conjunction with the next unoccupied time to allow the
user to know the next time and day when the zone will become
unoccupied. If the zone controller is following a global schedule this point will remain at default.
NOTE: If the current mode is unoccupied, this point makes
reference to the next unoccupied period and, in most cases,
may not be the same as the current unoccupied start time.
Next Unoccupied
Day:
Display Range
MON, TUE, WED,
THU, FRI, SAT, SUN
Default Value
No display (Blank)
Network Access None
Table 14 — Occupancy Maintenance Screen
DESCRIPTION
Mode
Current Occupied Period
Override in Progress
Override Duration
Occupied Start Time
Unoccupied Start Time
Next Occupied Day
Next Occupied Time
Next Unoccupied Day
Next Unoccupied Time
Last Unoccupied Day
Last Unoccupied Time
501
DEFAULT
0
0
No
0
00:00
00:00
(blank)
00:00
(blank)
00:00
(blank)
00:00
46
POINT NAME
MODE
PERIOD
OVERLAST
OVERDURA
OCCSTART
UNSTART
NXTOCCD
NXTOCCT
NXTUNOD
NXTUNOT
PRVUNOD
PRVUNOT
→ Next Unoccupied Time — This variable displays the time of
day when the next unoccupied period is scheduled to begin.
This point is read in conjunction with the next unoccupied day
to allow the user to know the next time and day when the zone
will become unoccupied. If the zone controller is following a
global schedule this point will remain at default.
NOTE: If the current mode is unoccupied, this point makes
reference to the next unoccupied period and, in most cases,
may not be the same as the current unoccupied start time.
Next Unoccupied
Time:
Display Range
00:00 to 24:00
Default Value
0:00
Network Access None
→ Last Unoccupied Day — This variable displays the last day
when the zone changed from occupied to unoccupied mode.
This point is read in conjunction with the last unoccupied time
to allow the user to know the last time and day when the zone
became unoccupied. If the zone controller is following a global
schedule this point will remain at default.
Last Unoccupied
Day:
Display Range
MON, TUE, WED,
THU, FRI, SAT, SUN
Default Value
No display (Blank)
Network Access None
→ Last Unoccupied Time — This variable displays the last time
of day when the zone changed from occupied to unoccupied
mode. This point is read in conjunction with the last unoccupied day to allow the user to know the last time and day when a
zone became unoccupied. If the zone controller is following a
global schedule this point will remain at default.
Last Unoccupied
Time:
Display Range
00:00 to 24:00
Default Value
0:00
Network Access None
ZONE AIR BALANCE/COMMISSIONING TABLE —
The Zone Air Balance/Commissioning Table is used to display
the air balance variables. See Table 15.
Commissioning Mode — This variable is used to put the zone
controller into the commissioning mode. Force this point to enable. The zone controller will be ready to accept a command to
perform the tests and functions on this screen.
NOTE: Commissioning mode will automatically be disabled after one hour.
Commissioning
Mode:
Display Range
Dsable/Enable
Default Value
Dsable
Network Access Read /Write
Damper Actuator/Transducer Calibration — The Damper
Actuator Transducer calibration is the first calibration which
should be performed on a newly installed actuator. The zone
controller will command the actuator to close and read the
feedback potentiometer to determine the zero position of the
damper. It will then command the damper to fully open. The
zone controller will read the potentiometer to determine the
maximum open position. Damper positions from closed to
maximum open will be scaled to read 0 to 100% for the damper position.
The zone controller will then close the damper and open it
once more to zero calibrate the airflow sensor. The entire
calibration procedure can take up to 3 minutes. If the damper
fails the test or the airflow calibration is unable to be completed, the Auto-Calibration point will indicate an Alarm.
Damper Actuator
Transducer
Calibration:
Display Range Dsable/Enable
Default Value
Dsable
Network Access Read /Write
Maximum Cooling Airflow Calibration — By enabling the
Maximum Cooling Airflow Calibration, the Maximum Cooling Airflow from the set point schedule will be made the Airflow CFM Set Point. The zone controller will modulate the
damper to control to this set point. The actual airflow, damper
position, and velocity pressure readings will be displayed.
If the set point is not correct, it may be changed from this
screen by forcing the airflow set point to the desired value. The
value will be written to the set point schedule in the Maximum
Cool CFM set point, and the zone controller will begin to control to the new value.
The airflow can be measured using test and balance equipment and compared to the actual reading on the screen. If the
value measured requires adjustment to the value on the screen,
force the value on the screen to the value measured. The zone
controller will take the value and calculate a new calibration
gain which will be shown at the bottom of the screen. The new
value will be automatically loaded into the Service Configuration table.
Maximum Cooling
Airflow
Calibration:
Display Range Dsable/Enable
Default Value
Dsable
Network Access Read /Write
Minimum Cooling Airflow Calibration — Enabling the Minimum Cooling Airflow Calibration will cause the airflow CFM
set point to change to the Minimum Cooling set point. The actual airflow, damper position, and velocity pressure readings
will be displayed.
If the set point is not correct, it may be changed from this
screen by forcing the Airflow set point to the desired value.
The value will be written to the set point schedule in the Minimum Cool CFM set point, and the zone controller will begin to
control to the new value.
The airflow can be measured using test and balance equipment and compared to the actual reading on the screen. If the
value measured requires adjustment to the value on the screen,
force the value on the screen to the value measured. The zone
controller will take the value and calculate a new offset.
The Offset configuration is included for precision applications where the minimum airflow is critical and not zero. The
Offset configuration should not be used to zero the airflow
transducer since an auto zero test is included in the normal
function of the zone controller and is automatically performed
each time the equipment fan is disabled (or every 72 hours for
systems which run the fan continuously). After performing air
balance testing using the Air Balance Maintenance screen, it is
a good idea to upload and save the Airflow set points, Calibration Gain, and Offset values.
Minimum Cooling
Airflow
Calibration:
Display Range Dsable/Enable
Default Value
Dsable
Network Access Read /Write
Fan Override — This variable can be used to test the fan on series and parallel fan powered terminals. Enabling this point will
cause the terminal fan to run until this point is disabled or the
commissioning mode is ended.
Fan Override:
Display Range
Dsable/Enable
Default Value
Dsable
Network Access Read /Write
47
501
→ Table 15 — Zone Air Balance/Commissioning Table
DESCRIPTION
Commissioning Mode
Damper/Transducer Calibration
Maximum Cooling
Minimum Cooling
Heating Override
Fan Override
CFM Set Point
Actual Airflow
Primary Damper Position
Measured Velocity Pressure
Supply Air Temperature
Auto-Calibration
Calibration Gain
DEFAULT
Dsable
Dsable
Dsable
Dsable
Dsable
Dsable
0 cfm
0 cfm
100 %
0.000 in. wg
0.0 F
Normal
1.000
Display Range
0.000 to 2.000 (Limited
by velocity pressure transducer high alarm
limit)
Default Value
0.000
Network Access Read Only
Supply-Air Temperature — This variable displays the supplyair temperature for ease of verifying the heat operation during
the heat test.
Supply-Air
Temperature:
Display Units
F (C)
Display Range
-40.0 to 245.0
Default Value
0.0
Network Access Read /Write
Auto-Calibration — This variable will display “Normal” if the
actuator and airflow transducer calibrations are successful. If
damper or transducer calibration was not successful, this point
will display “Alarm” and the zone controller will broadcast the
appropriate alarm (if configured to transmit alarms).
Auto-Calibration: Display Range
Normal/Alarm
Default Value
Normal
Network Access Read Only
Calibration Gain — Air terminal testing by industry standards
is done with straight duct, upstream of the terminal. Since most
applications are not installed in this manner, the actual airflow
from the terminal, at balancing, may not equal the reading from
the zone controller.
The Calibration Gain is used for making fine tuning adjustments to the airflow calculation. This number is calculated automatically by the zone controller after input to the air balance
maintenance screen. The Calibration Gain can also be entered
manually in the service configuration CONFIG screen.
A number of .95 entered into the Calibration Gain variable
will cause the maximum airflow to be reduced to 95% of the
calculated value. A number of 1.05 would cause readings to
become 5% higher. The Calibration Gain is adjusted on the Air
Balance maintenance screen when performing the Maximum
Airflow Calibration and will have the greatest affect on the airflow at maximum CFM.
After performing the air balance procedure using the air balance maintenance screen, it is recommended to upload and
save the Airflow Configuration, Calibration Gain, and Offset
settings.
Calibration Gain: Display Range
0.000 to 9.999
Default Value
1.000
Network Access Read Only
Heating Override — This variable can be used to test the heat
outputs. Enabling this variable will cause the heat to be modulated or staged to full heat until this point is disabled or the
force released. Ducted reheat operation will be controlled so as
not to exceed the configured maximum duct temperature. The
supply-air temperature is included on this screen to verify that
the heat is operating.
Heating Override: Display Range
Dsable/Enable
Default Value
Dsable
Network Access Read /Write
Airflow CFM Set Point — This variable displays the current
airflow set point that the zone controller is controlling to. During the calibration tests this value can be forced, which will
change the set point configuration for the value being tested.
Airflow CFM
Set Point:
Display Units
CFM
Display Range
0 to 9999 (Limited by
velocity pressure transducer high alarm
limit)
Default Value
0
Network Access Read /Write
Actual Airflow Display — This variable shows the actual airflow being measured, based on the inlet size configured. During the Maximum and Minimum Cooling Airflow calibration
tests this value can be forced, which will correct the multiplier
or offset used to calculate the airflow.
Actual Airflow: Display Units
CFM
Display Range
0 to 9999 (Limited by
velocity pressure transducer high alarm
limit)
Default Value
0
Network Access Read /Write
Primary Damper Position — This variable displays the current damper position. During CFM Balancing, this variable is
used to display the position of the damper. This value can
be used to see if the damper is fully open and the system air is
sufficient.
Primary Damper
Position:
Display Units
% (open)
Display Range
0 to 100
Default Value
100
Network Access Read Only
Measured Velocity Pressure — This variable displays the
measured velocity pressure, which is used to check accuracy
during test and balancing of the terminal. If the pressure
appears to be much different than that measured with a Magnahelic gage, the transducer can be forced to recalibrate its zero
by enabling the Damper/Transducer Calibration.
Measured Velocity
Pressure:
Display Units
in. wg
501
POINT NAME
CMODE
CALIBRAT
MAXCOOL
MINCOOL
HEATOVER
FANOVER
COMCFM
AIRFLOW
DMPPOS
MVP
SAT
CAL
CAL_GAIN
48
unoccupied mode. This variable will display any space temperature sensor slidebar offset that is being applied.
Cool Master
Reference:
Display Units
F (C)
Display Range
45.0 to 99.9
Default Value
90.0
Network Access Read/Write
Primary Damper Airflow Reference — This variable displays the current controlling airflow set point.
Primary Damper
Airflow
Display Units
CFM
Reference:
Display Range
0 to 9999 (Limited by
velocity pressure transducer high alarm
limit)
Default Value
0
Network Access Read /Write
Primary Damper Position — This variable displays the current damper position.
Primary Damper
Position:
Display Units
% (open)
Display Range
0 to 100
Default Value
100
Network Access Read/Write
Secondary Damper Airflow Reference — This variable displays the current controlling airflow set point for the secondary
damper.
Secondary Damper
Airflow
Display Units
CFM
Reference:
Display Range
0 to 9999 (Limited by
velocity pressure transducer high alarm
limit)
Default Value
0
Network Access Read /Write
Heat Enable — This variable displays the demand for heat in
the space. The space temperature must be below the appropriate heat set point.
Heat Enable:
Display Range
Dsable/Enable
Default Value
Dsable
Network Access Read Only
ZONE MAINTENANCE TABLE — The Zone Maintenance
table is used to display zone set points and variables. See
Table 16.
Occupied — This variable indicates if the zone controller is
operating in the occupied mode.
Occupied:
Display Range
No/Yes
Default Value
No
Network Access Read Only
→ Linkage Slave — This variable displays if air source linkage is
in effect.
Linkage Slave: Display Range
No/Yes
Default Value
No
Network Access Read Only
Linkage Master — This variable displays if this zone controller is functioning as a linkage master.
Linkage Master: Display Range
No/Yes
Default Value
No
Network Access Read Only
Timed Override in Effect — This variable indicates if a timed
override is in effect.
Timed Override
in Effect:
Display Range
No/Yes
Default Value
No
Network Access Read Only
Set Point Offset (T-56) — This variable displays the degrees
of offset when using a 33ZCT56SPT space temperature sensor
with set point adjustment. The slidebar on the sensor will adjust
the desired temperature in that zone, up or down, when it is
moved. The Set Point Offset (T-56) variable can disable set
point offset (set to 0).
Set Point
Offset (T-56):
Display Units
delta F (delta C)
Display Range
0.0 to 15.0
Default Value
0.0
Network Access Read Only
Cool Master Reference — This variable displays the cooling
master reference from the set point schedule. This should be
the occupied cool set point when the zone is in occupied
mode or the unoccupied cool set point when the zone is in
→ Table 16 — Zone Maintenance Table
DESCRIPTION
Occupied
Linkage Slave
Linkage Master
Timed Override in Effect
Set Point Offset (T-56)
Cool Master Reference
PI Primary Damper Reference
PD Primary Damper Reference
Secondary Damper Reference
Heat Enable
Heat Master Reference
Heat Submaster Reference
Temperature Control Airflow
Relative Humidity Airflow
Air Quality Airflow
Cooling in Effect
Heating in Effect
RH in Effect
AQ in Effect
Unoccupied Dehumidification
Cooling Energy
Heating Energy
DEFAULT
No
No
No
No
0.0 F
90.0 F
0 cfm
100 %
0 cfm
Dsable
55.0 F
0F
100 %
0%
0%
Yes
No
No
No
No
0 Btu
0 Btu
49
POINT NAME
ZONEOCC
DAVCTL
LINKMAST
TIMOV
T56OFF
CCMR
PISMR
PDSMR
SDSMR
HEATENA
HCMR
HSMR
TCA
RHA
AQA
COOLFLAG
HEATFLAG
RHFLAG
AQFLAG
UNOCCDH
COOLBTUS
HEATBTUS
801
Heat Master Reference — This point displays the occupied
heat set point if occupied, or the unoccupied heat set point if
unoccupied. This variable will display any space temperature
sensor slidebar offset that is being applied.
Heat Master
Reference:
Display Units
F (C)
Display Range
40.0 to 90.0
Default Value
55.0
Network Access Read/Write
Heat Submaster Reference — If heat is enabled, this variable
displays the desired supply air temperature calculated to heat
the space. This is a result of the heating PID loop calculation.
Heat Submaster
Reference:
Display Units
F (C)
Display Range
0 to 240
Default Value
0
Network Access Read/Write
Temperature Control Airflow — This variable displays the
airflow set point determined from the temperature loop calculation. The zone controller compares the Temperature, Relative
Humidity, and Air Quality loop. The greatest of the three will
become the primary damper airflow reference.
Temperature
Control Airflow: Display Units
%
Display Range
0 to 100
Default Value
100
Network Access Read Only
Relative Humidity Control Airflow — This variable displays the airflow set point determined from the relative
humidity loop calculation. The zone controller compares the
Temperature, Relative Humidity, and Air Quality loop. The
greatest of the three will become the primary damper airflow
reference.
Relative Humidity
Control Airflow: Display Units
%
Display Range
0 to 100
Default Value
0
Network Access Read Only
Air Quality Control Airflow — This variable displays the airflow set point determined from the air quality loop calculation.
The zone controller compares the Temperature, Relative
Humidity, and Air Quality loop. The greatest of the three will
become the primary damper airflow reference.
Air Quality
Control Airflow: Display Units
%
Display Range
0 to 100
Default Value
0
Network Access Read Only
801
Cooling in Effect — This variable displays if the air source is
in the Cooling mode and if the terminal is using the cooling airflow set points.
Cooling In Effect: Display Range
No/Yes
Default Value
Yes
Network Access Read Only
Heating in Effect — This variable displays if the air source is
in the Heat mode and if the terminal is using the heating airflow set points.
Heating In Effect: Display Range
No/Yes
Default Value
No
Network Access Read Only
Relative Humidity Control in Effect — This variable indicates if the relative humidity control is active.
Relative Humidity
Control In Effect: Display Range
No/Yes
Default Value
No
Network Access Read Only
Air Quality Control in Effect — This variable indicates if the
air quality control is active.
Air Quality
Control In Effect: Display Range
No/Yes
Default Value
No
Network Access Read Only
→ Unoccupied Dehumidification — This variable indicates if
unoccupied dehumidification control is in effect.
Unoccupied
Dehumidification: Display Range
Yes/No
Default Value
No
Network Access Read Only
Cooling Energy — This variable displays the amount of primary air source cooling BTUs being provided to the space by
the terminal. A CCN compatible air source or PAT sensor on a
linkage master is required.
Cooling Energy: Display Units
Btu
Display Range
0 to 999999
Default Value
0
Network Access Read Only
Heating Energy — This point displays the amount of primary
air source heating BTUs being provided to the space by the terminal. This value will not include zone level heating. A CCN
compatible air source or PAT sensor on a linkage master is
required.
Heating Energy: Display Units
Btu
Display Range
0 to 999999
Default Value
0
Network Access Read Only
50
Copyright 1999 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111
Catalog No. 533-355
Printed in U.S.A.
Form 33ZC-1SI
Pg 52
303
11-99
Replaces: New
Book 1
4
Tab 11a 13a