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19

Connect the CCN Communication Bus —

The

zone controllers connect to the bus in a daisy chain arrange-
ment. The zone controller may be installed on a primary CCN
bus or on a secondary bus from the primary CCN bus. Con-
necting 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.

The CCN communication bus also connects to the zone

controller space temperature sensor. Refer to the Install Sensors
and Make Field-Wiring Connections 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 8 for recom-
mended cable.

Table 8 — Recommended Cables

NOTE: Conductors and drain wire must be at least 20 AWG
(American Wire Gage), stranded, and tinned copper. Individual con-
ductors 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.

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 recom-
mended to simplify installation and checkout. See
Table 9 for the recommended color code.

Table 9 — Color Code Recommendations

3. Refer to Fig. 27. Connect the other end of the commu-

nication bus cable to the terminal block labeled CCN
in the zone controller of the first air terminal. Follow-
ing the color code in Table 9, connect the Red (+) wire
to Terminal 1. Connect the White (ground) wire to Ter-
minal 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 9.

NOTE: The communication bus drain wires (shield) must
be tied together at each zone controller. If the communica-
tion bus is entirely within one building, the resulting contin-
uous shield must be connected to ground at only one single
point. If the communication bus cable exits from one build-
ing 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).

Water Valve Installation

Water valves are field supplied. Carrier offers two different

hot water valve applications: on/off and floating point modulat-
ing proportional control. See Table 10 for specifications for
compatible water valves. To connect the field-supplied water
valves to the wiring harness terminal board located in the ter-
minal control unit, refer to the wiring labels for the control
package.

Table 10 — Valve Specifications

ComfortID™ Start-Up

GENERAL — Air volume delivery to the conditioned space
is controlled by the modulating of the primary air damper and
the sequencing of the air source supply fan. The controller po-
sitions the damper by way of an actuator and turns the fan on
and off through linkage for the CCN compatible air source
equipment control.
PRIMARY SYSTEM CHECK

1. Check that all controls, control box, and ductwork have

been properly installed and set according to installation
instructions and job requirements.

2. Check that final filters have been installed in the air-

handling apparatus. Dust and debris can adversely affect
system operation.

3. Check fan and system controls for proper operation.
4. Check electrical system and connections of any optional

electric reheat coil. If hot water reheat is used, check pip-
ing and valves per job drawings.

5. Check that all air duct connections are tight.
6. See that all balancing dampers at box outlets are in full-

open position.

ComfortID CONTROL SYSTEM CHECK

1. Check interconnections between thermostats and unit

controls.

2. Force all dampers to control to the maximum cooling cfm

using the Building Supervisor, ComfortWORKS

®

, Net-

work Service Tool or ComfortID Test and Balance Tool
software.

3. Set supply-duct balancing dampers, if used, in maximum

cool position.

MANUFACTURER

CABLE PART NO.

Alpha

2413 or 5463

American

A22503

Belden

8772

Columbia

02525

SIGNAL TYPE

CCN BUS WIRE

COLOR

PLUG PIN

NUMBER

+

Red

1

Ground

White

2

Black

3

Disconnect power before wiring the terminal control unit
or electrical shock and personal injury could result.

Follow the valve manufacturers recommended installation
instructions.

TYPE

ON/OFF

VALVE

3 POINTS

FLOATING

VALVE

Voltage
Frequency
Power Requirement

24 vac
50/60 Hz
Not to exceed 15 va

24 vac (15%)
50/60 Hz
Not to exceed 15 va
max inrush

Содержание 35E

Страница 1: ... ADJUSTMENT SLIDEBAR WIRING THE CCN NETWORK COMMUNICATION SERVICE JACK PRIMARY AIR TEMPERATURE SENSOR INSTALLATION INDOOR AIR QUALITY SENSOR INSTALLATION INDOOR AIR QUALITY SENSOR WIRING HUMIDITY SENSOR Wall Mounted INSTALLATION Connect the CCN Communication Bus 19 COMMUNICATION BUS WIRE SPECIFICATIONS CONNECTION TO THE COMMUNICATION BUS Water Valve Installation 19 ComfortID Start Up 19 GENERAL PR...

Страница 2: ...ls or controls File damage claim immediately with transportation agency and notify Carrier UNIT IDENTIFICATION Each unit is supplied with a shipping label and an identification label Fig 2 INSTALLATION PRECAUTION Check that construction debris does not enter unit or ductwork Do not operate the central station air handling fan without final or construction filters in place Accumulated dust and cons...

Страница 3: ...urn tracking 4149 Proportional floating hot water with supply return tracking 4150 Return air damper CCN Thermostats Ordered Separately Thermostat 33ZCT56SPT RT room temperature sensor with set point adjust and override Thermostat 33ZCT55SPT RT room temperature sensor with override only Thermostat 33ZCT58SPT Communicating room tempera ture sensor with LCD liquid crystal diode set point adjust fan ...

Страница 4: ...ion area Remove unit from ship ping package Do not handle by controls or damper extension rod 2 The unit has factory installed brackets on unit as shown in Fig 3 3 Suspend units from building structure with straps rods or hanger wires Secure the unit and level it in each direc tion Note that reheat coil is in heavy end of unit Step 2 Make Duct Connections 1 Install supply ductwork on unit inlet co...

Страница 5: ...04 0 35 675 13 0 21 0 09 0 27 0 44 0 60 0 76 0 09 925 13 0 39 0 17 0 51 0 82 1 13 1 43 0 17 240 240 or 0 240 4 9 0 02 0 01 0 02 0 03 0 04 0 05 0 01 9 550 11 3 0 08 0 07 0 12 0 17 0 22 0 27 0 07 0 44 875 16 0 21 0 17 0 31 0 44 0 57 0 69 0 17 1200 16 0 40 0 32 0 59 0 83 1 07 1 31 0 32 300 290 or 0 300 6 2 0 02 0 01 0 02 0 04 0 05 0 07 0 01 10 675 13 9 0 08 0 04 0 12 0 20 0 27 0 35 0 04 0 55 1075 21 ...

Страница 6: ...is typical of 480V 3 phase 4 wire heater and control Refer to actual unit wiring diagram AFS Airflow Switch DDC Direct Digital Controls Fig 5 Typical Power Connections for 35E Units with 3 Stage Electric Heat ANALOG OR DDC CONTROLLER 24VAC BLU YEL CLASS II TRANSFORMER OPTIONAL 120VAC 208VAC 240VAC 277VAC L1 GROUND 24 VAC POWER LEGEND NOTE Drawing is typical refer to actual unit wiring diagram for ...

Страница 7: ...s will provide a permanent record of the balanc ing information installation location information box size cooling minimum airflow cfm limit cooling maximum airflow cfm limit reheat cfm limit if applicable heating minimum airflow cfm limit if applicable heating maximum airflow cfm limit if applicable calibration gain after balancing set points PNEUMATIC CONTROLS Preparation for Balancing Control S...

Страница 8: ...______ ENGINEER ______________________________________________ BUILDING LOCATION FLOOR ______________________________ BUS NUMBER ___________________________________________ Fig 7 Air Terminal Performance Sheet CONTROL SET POINTS Tag Number Zone Address Box Size in cfm Cooling cfm Reheat cfm Heating cfm Heat kW Occupied Unoccupied Calibration Gain min max min max Type Btu min max min max mult ...

Страница 9: ...DAMPER Control Sequence 1103 Refer to Fig 9 1 Maximum volume setting a Disconnect the thermostat line from the velocity controller b Adjust the maximum volume control knob marked HI and located in the center of the con troller to achieve the required minimum flow To determine the required pressure differential refer to Tables 2 and 5 and the Linear Averaging Probe Chart provided on the side of the...

Страница 10: ... initial adjustments are made cycle the thermostat pressure a few times to settle the internal reset mechanisms and verify set tings Fine tune the settings if necessary The thermostat pres sure may be left at a high pressure and the G port cap may be removed and replaced to cycle the reset mechanism RESET START setting is factory set at 8 0 psig This is the lowest thermostat pressure that the LO S...

Страница 11: ... heating set point slider all the way to the right for maximum heating 5 Read the DC voltage across the meter taps on the heating left side Adjust the maximum set point MAX INCR potentiometer clockwise to increase or counterclockwise to decrease to the DC voltage equal to the desired air flow cfm as shown on the calibration curve Fig 14 NOTE The maximum set point must be adjusted last Adjust ment ...

Страница 12: ...adjusted first Adjust ment of the MIN INCR potentiometer directly affects the max imum set point and auxiliary set point 2 Adjustment of auxiliary set point if required Read the DC voltage across the meter taps on the heating left side Adjust the MAX AUX INCR potentiometer clockwise to increase or counterclockwise to decrease to the DC voltage equal to the desired airflow cfm 3 Return the cooling ...

Страница 13: ... and 2 of connector J1 Refer to unit wire label diagram for minimum size VA and grounding requirements for each unit SUPPLY AIR TEMPERATURE SAT SENSOR INSTAL LATION On terminals with heat the SAT sensor is provid ed The sensor is factory wired to the controller and shipped in the control box The SAT must be field installed in the duct downstream from the air terminal The SAT sensor part num ber is...

Страница 14: ... connection will be made If connection is desired the CCN communication cable should be available at time of sensor installation for convenient wiring connections The cable selected must meet the requirements for the entire network See Connect the CCN Communication Bus section for CCN communication cable specifications RESISTANCE Ohms TEMP F RESISTANCE Ohms TEMP F RESISTANCE Ohms TEMP F RESISTANCE...

Страница 15: ...inches Fig 18 Space Temperature Sensor and Wall Mounted Humidity Sensor Mounting 2 3 4 5 6 1 SW1 SEN BLK GND RED SPT RED WHT GND BLK CCN COM SENSOR WIRING Fig 19 Space Temperature Sensor Wiring 33ZCT55SPT 2 3 4 5 6 1 SW1 SEN SET Cool Warm WHT T56 BLK GND RED SPT RED WHT GND BLK CCN COM SENSOR WIRING JUMPER TERMINALS AS SHOWN Fig 20 Space Temperature Sensor Wiring 33ZCT56SPT ...

Страница 16: ...he 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 ter minal block of the sensor b Connect another wire from the cable BLACK to the ground terminal on the controller Connect the other end of the wire to the remaining open termi nal on the SEN t...

Страница 17: ... 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 To mount the sensor refer to the installation instructions shipped with the accessory kit INDOOR AIR QUALITY SENSOR WIRING To wire the sensor after it is mounted in the conditioned air space see Fig 23 25 and the instructions shipped with the sensor Use two ...

Страница 18: ...he center of the sensor 2 Connect the RED wire to the sensor screw terminal marked 3 Install one lead from the resistor supplied with the sen sor 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 field supplied clo...

Страница 19: ...nal zone controllers in a daisy chain fashion following the color coded wiring scheme in Table 9 NOTE The communication bus drain wires shield must be tied together at each zone controller If the communica tion bus is entirely within one building the resulting contin uous shield must be connected to ground at only one single point If the communication bus cable exits from one build ing and enters ...

Страница 20: ...s a portable device to change system set up and set points from a zone sensor or ter minal control module During start up the Building Supervisor or the Network Service Tool can also be used to verify commu nication with each controller For specific operating instructions refer to the appropriate user manual See Table 11 for troubleshooting information ComfortID TEST AND BALANCE TOOL SOFT WARE The...

Страница 21: ...n electric box mounted horizontally may be used instead of cutting the hole 2 Remove the cover from the thermostat controller Care fully remove the circuit board from the backplate of the thermostat controller Line up the backplate with the hole in the wall Push the protruding part of the backplate into the hole Pull the thermostat controller wires out through the backplate 3 Attach backplate to w...

Страница 22: ... board Slide the cir cuit board under the back plate securing bars DO NOT CREASE RIBBON CABLE 7 Align thermostat board with alignment pin Gently pull down on the thermostat latch and press firmly until the circuit board snaps into place 8 If optional locking thermostat cover is purchased insert locking clip on the inside of the thermostat cover Push firmly into place 9 Insert tabs on thermostat co...

Страница 23: ...k system Variable Volume and Temperature VVT Product Data literature and the configura tion instructions provided with the thermostat Refer to the specific control sequence 35E 82XX for de tailed operational information This information should be used to test and commission the control Control Start Up GENERAL Air volume delivery to the conditioned space is controlled by the modulating of the prim...

Страница 24: ... discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 533 530 Printed in U S A Form 35E 2SI Pg 24 3 06 Replaces 35E 1SI Copyright 2006 Carrier Corporation Book 3 Tab 6a ...

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