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Table 11 — Troubleshooting Guide For ComfortID™ Terminal Controls

VVT® CONTROLS

General

DIRECT DRIVE HIGH TORQUE ACTUATOR —

The

direct-drive high torque actuator is used in VVT (variable
volume and variable temperature) systems for changing the
damper position. The actuator is factory-installed on the termi-
nal damper and is controlled by a zone controller or a monitor
thermostat. The thermostat calculates how much heating or
cooling is required to each zone in the VVT system. The actua-
tor receives the commands from its controlling device and
moves its damper to change the amount of heated or condi-
tioned air that is sent to its zone.

If the 35E unit is equipped with electric heat, only power to

the electric heater must be supplied. If the unit does not have an
electric heater, then a field-supplied dedicated 24 vac/Class II
power source must be installed and wired to the VVT control-
ler. Refer to Table 12 for the minimum VA requirement and to
the wire label diagram for power connections.
RELAY PACKAGE — The relay package is factory-supplied
as required depending on the control package ordered.

The relay pack output harness is connected to the output

connector on the relay pack. The pigtail is routed through the
grommet the bottom of actuator.

For hot water heat applications, connect the white wire from

the relay pack output harness to the field-supplied two-position
water valve. See the unit wiring diagram for more information.
ADDITIONAL SENSOR INSTALLATION — Additional sen-
sors are required for certain control sequences. A pressure
transducer is factory supplied, wired, piped, and installed in-
side the control box for units with pressure independent con-
trols. Follow the installation instructions provided with each
sensor.
NOTE: Pressure sensor is NOT installed inside the actuator
housing. There is no clearance available for the pressure trans-
ducer inside the actuator.
THERMOSTATS — Thermostats are sold separately and are
not provided as part of any VVT control package. Refer to the
specific control publication for thermostat operation.

Thermostat Placement —

Begin the thermostat instal-

lation by determining where the device will be located. In most
cases, this will be pre-determined by the building plans.

The thermostat should be located on an interior wall, about

5 ft from the floor. The device should be located away from di-
rect sunlight, drafts, or interior heat sources which may influ-
ence temperature readings.

The device may also be mounted in a remote location with

the use of an optional remote room sensor.

To mount the thermostat, perform the following:

1. Cut a hole in the wall for the terminal board housing. The

hole should be 1

3

/

4

in. by 1

3

/

4

inches. See Fig. 29.

NOTE: A 2-in. x 4-in. 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 wall with screws provided.

Wiring Requirements —

The wiring requirements for

the Carrier Comfort Network® system are:
CCN COMMUNICATIONS — 18 or 20 gage, 3-conductor,
shielded, stranded wire, color coded (RED, BLACK,
GREEN), plenum rated if required, long enough to run from
thermostat to thermostat in daisy-chain configuration. (Refer to
Table 12 for specific control package requirements.)

Table 12 — Minimum VA Requirements

PROBLEM

CAUSE

CORRECTIVE ACTION

Measured Airflow Does Not Agree
With Display Value.

Terminal airflow not calibrated or airflow
sensor not calibrated.
Wrong terminal inlet size.

Perform damper/transducer and zone calibration.

Check and correct terminal inlet size if necessary.

Supply Air Temperature (SAT)
Displays 0.0°. Terminal Not Equipped
With Heat or Field Installed.

No heat type configured or ducted heat not
configured.

For terminals without heat, the SAT sensor is
not used. If required, configure Heat Type = 2
and Ducted Heat = YES.

Baseboard Perimeter Heat Does
Not Work.

No heat type configured.

Configure Heat Type. If modulating baseboard,
then Ducted Heat must equal YES and sensor
HH79NZ078 must be affixed to measure leaving water
temperature.

Modulating Baseboard Hot Water
Heat Does Not Control Properly.

Improperly configured.

Readjust the following service configuration parameters:
Heat Start Value = 110 F
Maximum Duct Temperature = 180 F
P Gain = 20
I Gain = 1.3

Electric Reheat Does Not Operate.

No power to heater.
Airflow too low or high temperature limit
tripped.

Check fuses and disconnect.
Verify airflow exceeds 500 fpm. Adjust Reheat CFM Limit if
required to operate below 120 F discharge with all stages
operating.

Hot Water Reheat Does Not Operate.

No hot water available.
Water valve wired wrong or not functioning.

Repair as required.
Check wiring and correct if necessary. Retest water
valve operation.

Excessive Air Noise.

Airflow limits not set properly.
Excessive system static pressure.
Diffusers too small.

Check and readjust maximum airflow limits.
Check system static pressure. Reduce pressure if required.
Replace with proper size.

Unit Will Not Provide Modulating
Damper Control During Air Source
Heating/Warm-Up Mode.

Primary air temperature sensor not
installed and no Linkage Master is used
(PAT sensor required for control package
4140 and 4145, cooling only, stand-alone
operation).

Install PAT sensor and configure as a Linkage Master
with a system size of 1 zone.

CONTROL SEQ NO.

MIN VA REQUIREMENT

8200

30

8201

Factory Supplied (75)

8202

40

8206

35

8207

Factory Supplied (75)

8208

45

8209

30

8210

35

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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