Trane VariTrane Installation/ Owner Programming Download Page 4

4

VAV-SVX03A-EN

Literature Contents

This manual describes the operation,
calibration and set-up of VariTrane VAV
Single-Duct and Fan-powered units
with Analog Electronic Controls.

Receiving and Handling

VariTrane units are shipped completely
assembled with the exception of filters
and accessories. Upon receiving,
please inspect each unit and the
components for shipping damage.

General
Information

After receiving the units, complete
the following:

—

Locate the nameplate and model
number and check that the correct units
have been received.

—

Inspect the control units and air damper
casing for dents or punctures.

—

Verify that all options have been
included, such as filters, controls,
heating coils, water valves, etc. Also
check that unit voltages agree with the
building parameters.

—

Manually rotate the fan (if applicable) to
assure that there are no obstructions
within the housing.

—

Claims for in-transit damage must be
filed immediately with the delivery
carrier.

—

For re-heat units, check the coil fins and
make sure the coils are not damaged.

—

Locate and verify that the correct zone
sensors are with the order. These will
be marked with an orange “Accessories
Enclosed” label. Store in a secure place
until needed. Accessories lost at a
jobsite are NOT covered by Trane’s
warranty.

—

If a discrepancy occurs between what
was ordered and what is received,
contact your local Trane representative
immediately.

—

Read the appropriate section in this
manual for installation procedures prior
to actual starting of installation.

NOTICE:

Warnings and Cautions appear at appropriate sections throughout this manual.
Read these carefully.

— Indicates a potentially hazardous situation which, if not

avoided, could result in death or serious injury.

— Indicates a potentially hazardous situation which, if not

avoided, may result in minor or moderate injury.

— May also be used to alert reader to a situation that could result

in equipment or property only damage.

WARNING

WARNING

CAUTION

CAUTION

CAUTION:

CAUTION:

Summary of Contents for VariTrane

Page 1: ...on Owner Programming VariT rane Analog ElectronicControls VAV SVX03A EN November 2001 For use with Single Duct Cooling Reheat Units Parallel Series Fan Powered Units Low Height Parallel Series Fan Pow...

Page 2: ...VAV SVX03A EN 2001 American Standard Inc All rights reserved...

Page 3: ...l Minimum 10 Calibration Transducer Operation 11 NullVoltage 11 Procedure for Maximum and Minimum Calibration 11 Set Maximum Flow 11 Set Minimum Flow 12 No Dual Minimum 12 Auto Dual Minimum 12 Balanci...

Page 4: ...n transit damage must be filed immediately with the delivery carrier For re heat units check the coil fins and make sure the coils are not damaged Locate and verify that the correct zone sensors are w...

Page 5: ...ntain the desired temperature the re heat will be activated to increase the temperature of the discharge air On a parallel unit theVariTrane air damper delivers primary cooling air to the unit outlet...

Page 6: ...6 VAV SVX03A EN Figure 2 Typical Fan Powered Units Unit Information VSCF VSWF VSEF VPCF VPWF VPEF...

Page 7: ...all unit sizes 3 A minimum setting of zero is permissible except forVCEF units Analog Controls Electronic Controls Installation Check the wiring on the unit with the wiring diagram and wiring informat...

Page 8: ...changeable with DDC zone sensors The three wires required for the wall zone sensor to the terminal block are to be furnished and completed by the installer If local codes require enclosed conductors t...

Page 9: ...ature is 0 5 F below the setpoint the damper begins to modulate to its minimum position supplying less cold air and more warm plenum air When the air damper is at minimum and zone temperature is still...

Page 10: ...to the flow voltage Control Options Auto Dual Minimum The auto dual minimum enables the unit to change the minimum automati cally without an outside signal The minimum changes when the first stage re...

Page 11: ...Rotate min B R69 full counter clockwise 3 With both of the transducer ports open to ambient 0 delta P read the output voltage atTP4 Ground is eitherTP3 TB1 2 orTB1 3 The value of the null transducer...

Page 12: ...closed when minimum is desired Auto Dual Minimum Place jumper on J18 A to B The heating minimum is the minimum at which the damper is controlled to when the fan on a fan powered unit is activated or w...

Page 13: ...ck the 12 volts DC power supply of the circuit card terminalsTB1 5 to TB1 3 Acceptable range 11 6 to 12 4 volts DC 3 Install the magnehelic gage to observe delta P When connecting to the test tees be...

Page 14: ...at jack J3 5 Reheat stages or fan on fan powered units are connected at jacks J7 24 VAC J9 J10 and J11 6 Various options to cause changes to the operation of unit are input at jack J15 7 There are va...

Page 15: ...rmistor will equal the voltage drop between terminal 2 and Zone Sensor terminal 3 With the voltages being equal the room temperature is considered satisfied and all output relays are de energized If t...

Page 16: ...k leaving air temperature from air handling unit Coils do not engage on Faulty relay orTriac Check for voltage to heating coil and relay s Verify supply voltage matches coil voltage Call for heat Boar...

Page 17: ...n the room setpoint is above the actual room temperature stages of heat will be energized if enabled 3 If the zone sensor does not operate at all check the wiring from the board to the sensor Referenc...

Page 18: ...trol Refer to prior sections for step by step procedures 2 Remove all connections from J9 J10 and J11 In addition remove J19 if it is a series fan power unit 3 Set the zone sensor to the full cooling...

Page 19: ...om temperature must be between 65 F and 80 F Make sure also that placement of the zone sensor is satisfactory It should not be located in direct sunlight on cold or hot wall surfaces etc A zone sensor...

Page 20: ...VAV SVX03A EN File Number SL TD VAV 000 SBX03A EN 1101 Supersedes New Stocking Location La Crosse SinceTheTrane Company has a policy of continuous product and product data improvement it reserves the...

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