Trane VAV-SVN01E-EN User Manual

Installation/
Operator
Maintenance

VariTrane™ Single-Duct
and Fan-Powered Units

All VariTrane VAV Models with pneumatic, electronic, DDC controls and diffusers.

June 2006

VAV-SVN01E-EN

© 2006 American Standard All rights reserved VAV-SVN01E-EN

Contents

Service Model Number Description .................. 4 – 14

General Information ............................................... 15

Literature Contents
Receiving and Handling

Warnings and Cautions Explanations

Unit Information ............................................. 16 – 17

Single-Duct Units
Dual-Duct Units
Fan-Powered and Low-Height Units

Unit Installation .............................................. 18 – 31

Hanging Bracket Locations
Unit Weights

Water Coil Connections
Unit Accessibility
Clearances
Actuator Mounting

Unit Setup ...................................................... 32 – 46

Flow Sensor ∆P vs. Airflow Delivery
Maximum Fan Motor Amperage
(SCR) Motor Speed Control Adjustment Procedure
Electrically Commutated Motor (ECM)
ECM CFM Tables

Wiring Diagrams ............................................. 47 – 54

Maintenance .......................................................... 55

Motors
Fan Wheel
Filter
Water Coil
Fan Motor Replacement

Installation of Diffusers .......................................... 56

T-Bar Ceiling
Concealed Spline Ceiling
Drywall/Plaster Ceiling

VAV-SVN01E-EN 3

Service Model

WARNING

Number Description

WARNING

Fiberglass Wool!

WARNING: ALL INSULATED UNITS
(except closed-cell foam insulation)
CONTAIN FIBERGLASS WOOL! Read
this literature prior to installation for
proper instruction. Disturbing the
insulation in this product during
installation, maintenance or repair will
expose you to airborne particles of
glass wool fibers and ceramic fibers
known to the state of California to
cause cancer through inhalation. Glass
wool fibers may also cause respiratory,
skin or eye irritation.

Single-Duct Units

Digit 1, 2—Unit Type

VC VariTrane single-duct

Digit 3—Reheat

C Cooling Only
E Electric Heat
W Hot Water Heat

Digit 4—Development Sequence

F Sixth

Digit 5, 6—Primary Air Valve

04 4" inlet (225 cfm)
05 5" inlet (350 cfm)
06 6" inlet (500 cfm)
08 8" inlet (900 cfm)
10 10" inlet (1400 cfm)
12 12" inlet (2000 cfm)
14 14" inlet (3000 cfm)
16 16" inlet (4000 cfm)
24 24" x 16" inlet (8000 cfm)

Digit 7, 8—Not Used

00 N/A

Digit 9—Not Used

0 N/A

Digit 10, 11—Design Sequence

H0 Fourth (factory assigned)

Digit 12, 13, 14, 15—Controls

ENON No controls, field-installed

DDC/electric

PNON No controls, field-installed

pneumatic
DD00 Trane elec actuator only
DD01 DDC – Cooling only
DD02 DDC – N.C. on/off water valve

control
DD03 DDC – Prop hot water valve

control
DD04 DDC – On/off electric heat
DD05 DDC – Pulse-width modulation

electric heat
DD07 DDC – N.O. on/off water valve

control
DD11 LonTalk DDC Controller—

Cooling only
DD12 LonTalk DDC Controller w/ N.C.

on/off hot water control
DD13 LonTalk DDC Controller w/

proportional hot water control
DD14 LonTalk DDC Controller–on/off

electric heat control
DD15 LonTalk DDC Controller w/

pulse-width modulation electric

heat control
DD17 LonTalk DDC Controller w/ N.O.

on/off hot water control

FM00 FM – Customer-supplied

actuator & controller

FM01 FM – Trane actuator w/ cusomer-

supplied control
VMA1 FM – Johnson controls VMA-1410
VMA2 FM – Johnson controls VMA-1420
PWR1 FM – Seimens 540-100 w/

GDE131.1P actuator
PWR4 FM – Seimens 540-100 w/ Trane

actuator
PWR5 FM – Seimens 540-100 w/

GDE131.1U actuator
AT01 FM – Automated Logic U341V+
AT02 FM – Automated Logic U141V+
EI05 Analog – With optional on/off

reheat
EI28 Analog – With optional on/off

reheat with dual-minimum cfm
EI29 Analog – With optional on/off

reheat with constant-volume cfm
PC00 PN – N.C. Trane pneumatic

actuator
PC04 PN – N.C. with optional on/off HW,

DA Stat
PC05 PN – N.C. with optional on/off

electric, RA Stat
PN00 PN – N.O. Trane pneumatic

actuator, RA Stat
PN04 PN – N.O. PVR, DA Stat
PN05 PN – N.O. PVR, RA Stat
PN11 PN – N.O. dual-minimum cfm,

DA Stat
PN32 PN – Water Valve, N.O. constant

volume, DA Stat
PN34 PN – Electric heat, N.O. constant

volume, DA Stat

Notes

:

N.C. = Normally-closed
N.O. = Normally-opened
DA Stat = Direct-acting pneumatic t-stat

(by others)

RA Stat = Reverse-acting pneumatic

PN = Pneumatic
FM = Factory installation of customer-

PVR = Pneumatic Volume Regulator

Digit 16—Insulation

A 1/2" Matte-faced
B 1" Matte-faced
C 1/2" Foil-faced
D 1" Foil-faced
F 1" Double-wall
G 3/8" Closed-cell

t-stat (by others)

supplied controller

4

VAV-SVN01E-EN

Single-Duct Units (con't.)

Digit 17—Not Used

0 N/A

Digit 18—Not Used

0 N/A

Digit 19—Outlet Plenum (Connection is
Slip & Drive)

0 None
A 1 Outlet RH
B 1 Outlet END
C 1 Outlet LH
D 2 Outlets, 1 RH, 1 END
E 2 Outlets, 1 LH, 1 END
F 2 Outlets, 1 RH, 1 LH
H 3 Outlets, 1 LH, 1 RH, 1 END
J 4 Outlets, 1 LH, 1 RH, 2 END

Note

:

See unit drawings for outlet sizes/

damper information.

Digit 20—Not Used

0 N/A

Digit 21—Water Coil

0 None
11-Row
2 2-Row

Digit 22—Electrical Connections (VCCF,
VCWF can be flipped in the field to
achieve opposite-hand connection)

L Left (Airflow hitting you in the

face)

R Right (Airflow hitting you in the

face)

0 Opposite side connection – coil

and control

Service Model
Number Description

Digit 23—Transformer

0 None
1 120/24 volt (50 VA)
2 208/24 volt (50 VA)
3 240/24 volt (50 VA)
4 277/24 volt (50 VA)
5 480/24 volt (50 VA)
6 347/24 Volt (50 VA)
7 575/24 Volt (50 VA)
8 380/24 Volt (50 VA)

Note: For VCEF units with transformers
the VA depends on the staging, control,
and contactor type (ranges are 40 VA
to 75 VA)

Digit 24—Disconnect Switch

0 None
W With

Note: VCCF, VCWF – Toggle Disconnect

VCEF – Door Interlocking Power
Disconnect

Digit 25—Power Fuse

0 None
W With

Digit 26—Electric Heat Voltage

0 None
A 208/60/1
B 208/60/3
C 240/60/1
D 277/60/1
E 480/60/1
F 480/60/3
G 347/60/1
H 575/60/3
J 380/50/3
K 120/60/1

Notes

Digit 27, 28, 29—Electric Heat kW

000 None
050 0.5 kW
010 1.0 kW
015 1.5 kW

460 46.0 kW

:

0.5 to 8.0 kW – ½ kW increments

8.0 to 18.0 kW – 1 kW increments

18.0 to 46.0 kW – 2 kW increments

Digit 30—Electric Heat Stages

0 None
1 1 Stage
2 2 Stages Equal
3 3 Stages Equal

Digit 31—Contactors

0 None
1 24-volt magnetic
2 24-volt mercury
3 PE with magnetic
4 PE with mercury

Digit 32—Not Used

0 N/A

VAV-SVN01E-EN 5

Dual-Duct Units

Digit 1, 2, 3—Unit Type

VDD VariTrane dual-duct

Digit 4—Development Sequence

F Sixth

Digit 5, 6—Primary Air Valve

05 5" inlet (350 cfm)
06 6" inlet (500 cfm)
08 6" inlet (900 cfm)
10 10" inlet (1400 cfm)
12 12" inlet (2000 cfm)
14 14" inlet (3000 cfm)
16 16" inlet (4000 cfm)

Digit 7, 8—Secondary Air Valve

05 5" inlet (350 cfm)
06 6" inlet (500 cfm)
08 8" inlet (900 cfm)
10 10" inlet (1400 cfm)
12 12" inlet (2000 cfm)
14 14" inlet (3000 cfm)
16 16" inlet (4000 cfm)

Digit 9—Not Used

0 N/A

Digit 10, 11—Design Sequence

C0 Third (factory assigned)

Digit 12, 13, 14, 15—Controls

ENON No Controls, Field-installed

DDC/Electric

PNON No Controls, Field-installed

Pneumatic
DD00 Trane elec actuator only
DD01 DDC – Cooling only
DD08 DDC – Constant-volume

discharge
DD11 LonTalk DDC Controller—

Cooling only
DD18 LonTalk DDC Controller—

Constant Volume Discharge

Service Model
Number Description

FM00 FM – Customer-supplied

actuator & controller

FM01 FM – Trane actuator w/

customer-supplied controller

PC03 PN – N.C. heating/ N.O. cooling

w/ PVRs, DA stat

PN08 PN – N.O. heating/ N.O. cool

act. only, RA stat

PN09 PN – N.O. htg/clg vlvs w/ PVRs,

DA stat

PN10 PN – N.O. htg/clg w/ PVRs (cv

disch), DA stat.

Notes:
N.C. = Normally-closed
N.O. = Normally-opened
DA Stat = Direct-acting pneumatic t-stat

(by others)

RA Stat = Reverse-acting pneumatic t-stat

(by others)

PN = Pneumatic
FM = Factory installation of customer-

supplied controller

PVR = Pneumatic Volume Regulator

Digit 16—Insulation

A 1/2" Matte-faced
B 1" Matte-faced
C 1/2" Foil-faced
D 1" Foil-faced
F 1" Double-wall
G 3/8" Closed-cell

Digit 17—Not Used

0 N/A

Digit 18—Not Used

0 N/A

Digit 19—Outlet Plenum (Connection is
slip & drive)

0 none
A 1 outlet–RH
B 1 outlet–END
C 1 outlet–LH
D 2 outlets–1 RH, 1 END
E 2 outlets–1 LH, 1 END
F 2 outlets–1 RH, 1 LH
G 2 outlets - END
H 3 outlets–1 LH, 1 RH, 1 END
J 4 outlets–1 LH, 1 RH, 2 END

Note: See unit drawings for outlet sizes/
damper information.

Digit 20—Not Used

0 N/A

Digit 21—Not Used

0 N/A

Digit 22—Not Used

0 N/A

Digit 23—Transformer

0 None
1 120/24 volt (50 VA)
2 208/24 volt (50 VA)
3 240/24 volt (50 VA)
4 277/24 volt (50VA)
5 480/24 volt (50 VA)
6 347/24 volt (50 VA)
7 575/24 volt (50 VA)

Digit 24—Disconnect Switch

0 None
W With Toggle

Digit 25—Power Fuse

0 None
W With

6

VAV-SVN01E-EN

Fan-Powered Parallel Units

Digit 1, 2—Unit Type

VP VariTrane fan-powered parallel

Digit 3—Reheat

C Cooling Only
E Electric Heat
W Hot Water Heat

Digit 4—Development Sequence

F Sixth

Digit 5, 6—Primary Air Valve

05 5" inlet (350 max cfm)
06 6" inlet (500 max cfm)
08 8" inlet (900 max cfm)
10 10" inlet (1400 max cfm)
12 12" inlet (2000 max cfm)
14 14" inlet (3000 max cfm)
16 16" inlet (4000 max cfm)

Digit 7, 8—Secondary Air Valve

00 N/A

Digit 9—Fan

P 02SQ fan (500 nominal cfm)
Q 03SQ fan (1100 nominal cfm)
R 04SQ fan (1350 nominal cfm)
S 05SQ fan (1550 nominal cfm)
T 06SQ fan (1850 nominal cfm)
U 07SQ fan (2000 nominal cfm)

Digit 10, 11—Design Sequence

J0 Design Sequence (Factory
assigned)

Digit 12, 13, 14, 15—Controls

ENON No controls, field-installed DDC
or analog
ENCL ENON with controls enclosure
PNON No controls, field-installed
pneumatic
DD00 Trane elec actuator only
DD01 DDC – cooling only
DD02 DDC – N.C. on/off water control
DD03 DDC – prop hot water control
DD04 DDC – on/off electric heat
control
DD05 DDC – pulse-width modulation
electric heat control
DD07 DDC – N.O. on/off hot water
control
DD11 LonTalk DDC Controller—
Cooling only
DD12 LonTalk DDC Controller w/ N.C.
on/off hot water control
DD13 LonTalk DDC Controller w/
proportional hot water control
DD14 LonTalk DDC Control–on/off
electric heat control

Service Model
Number Description

DD15 LonTalk DDC Controller w/
pulse-width modulation electric heat
control
DD17 LonTalk DDC Controller w/ N.O.
on/off hot water control
FM00 FM customer actuator & control
FM01 FM Trane actuator w/ customer­supplied controller
VMA2 FM Johnson Controls

VMA-1420
PWR1 FM Seimens 540-100 w/
GDE131.1P actuator
PWR4 FM Seimens 540-100 w/ Trane
actuator
PWR5 FM Seimens 540-100 w/
GDE131.1U actuator
AT01 FM Automated Logic U341V+
AT02 FM Automated Logic U141V+
EI05 Analog – fan-powered parallel
with optional on/off reheat
PN00 PN – N.O. Trane pneumatic
actuator, R.A. stat
PN05 PN – N.O. PVR, R.A. stat

Notes:
N.C. = Normally-closed
N.O = Normally-opened
DA Stat = Direct-acting pneumatic t-stat

(by others)

RA Stat = Reverse-acting pneumatic

t-stat (by others)

PN = Pneumatic
FM = Factory installation of customer-

supplied controller

PVR = Pneumatic Volume Regulator

Digit 16—Insulation

A 1/2" Matte-faced
B 1" Matte-faced
C 1/2" Foil-faced
D 1" Foil-faced
F 1" Double-wall
G 3/8" Closed-cell

Digit 17—Motor Type

D PSC Motor
E High-efficiency motor (ECM)

Digit 18—Motor Voltage

1 115/60/1
2 277/60/1
3 347/60/1
4 208/60/1
5 230/50/1

Digit 19—Outlet Connection

1 Flanged
2 Slip & Drive

Electrical Connections Note: Airflow
hitting you in the face.

Note: VPCF, VPWF – Toggle Disconnect

Electric Heat Voltage Notes:

0.5 to 8.0 kW–½ kW increments

8.0 to 18.0 kW –1 kW increments

18.0 to 46.0 kW–2 kW increments

Digit 20—Attenuator

0 None
W With

Digit 21—Water Coil

0 None
1 1-Row–Plenum inlet installed RH
2 2-Row–Plenum inlet installed RH
3 1-Row–Discharge installed, LH
4 1-Row–Discharge installed, RH
5 2-Row–Discharge installed, LH
6 2-Row–Discharge installed, RH

Digit 22—Electrical Connections

L Left
R Right

Digit 23—Transformer

0 N/A (provided as standard)

Digit 24—Disconnect Switch

0 None
W With

VPEF – Door Interlocking Power
Disconnect

Digit 25—Power Fuse

0 None
W With

Digit 26—Electric Heat Voltage

0 None
A 208/60/1
B 208/60/3
C 240/60/1
D 277/60/1
E 480/60/1
F 480/60/3
G 347/60/1
H 575/60/3
J 380/50/3
K 120/60/1

Digit 27, 28, 29—Electric Heat Voltage

000 None
050 0.5 kW
010 1.0 kW
015 1.5 kW

260 26.0 kW

VAV-SVN01E-EN 7

Fan-Powered Parallel Units (con't)

Digit 30—Electric Heat Stages

0 None
1 1 Stage
2 2 Stages Equal
3 3 Stages Equal

Digit 31—Contactors

0 None
1 24-volt magnetic
2 24-volt mercury
3 PE with magnetic
4 PE with mercury

Digit 32—Airflow Switch

0 None
W With

Service Model
Number Description

8

VAV-SVN01E-EN

Fan-Powered Series Units

Digit 1, 2—Unit Type

VS VariTrane fan-powered series

Digit 3—Reheat

C Cooling Only
E Electric Heat
W Hot Water Heat

Digit 4—Development Sequence

F Sixth

Digit 5, 6—Primary Air Valve

04 4" inlet (225 max cfm)
05 5" inlet (350 max cfm)
06 6" inlet (500 max cfm)
08 8" inlet (900 max cfm)
10 10" inlet (1400 max cfm)
12 12" inlet (2000 max cfm)
14 14" inlet (3000 max cfm)
16 16" inlet (4000 max cfm)

Digit 7, 8—Secondary Air Valve

00 N/A

Digit 9—Fan

P 02SQ fan (700 nominal cfm)
Q 03SQ fan (1200 nominal cfm)
R 04SQ fan (1550 nominal cfm)
S 05SQ fan (1900 nominal cfm)
T 06SQ fan (2600 nominal cfm)
U 07SQ fan (3000 nominal cfm)

Fan Note: See fan curves for specific
airflows

Digit 10, 11—Design Sequence

J0 Design Sequence

(Factory assigned)

Digit 12, 13, 14, 15—Controls

ENON No controls, field-installed DDC

or analog
ENCL ENON with control enclosure
PNON No controls, field-installed

pneumatic
DD00 Trane elec actuator only
DD01 DDC – cooling only
DD02 DDC – N.C. on/off water control
DD03 DDC – prop hot water control
DD04 DDC – on/off electric heat

control
DD05 DDC – pulse-width modulation

electric heat control
DD07 DDC N.O. on/off hot water

control
DD11 LonTalk DDC Controller—

Cooling only
DD12 LonTalk DDC Controller w/ N.C.

on/off hot water control

Service Model
Number Description

DD13 LonTalk DDC Controller w/

proportional hot water control

DD14 LonTalk DDC Controller–on/off

electric heat control

DD15 LonTalk DDC Controller w/

pulse-width modulation electric
heat control

DD17 LonTalk DDC Controller w/ N.O.

on/off hot water control
FM00 FM customer actuator & control
FM01 FM Trane actuator w/ customer-

supplied controller
VMA2 FM Johnson controls VMA-1420
PWR1 FM Seimens 540-100 w/

GDE131.1P actuator
PWR4 FM Seimens 540-100 w/ Trane

actuator
PWR5 FM Seimens 540-100 w/

GDE131.1U actuator
AT01 FM Automated Logic U341V+
AT02 FM Automated Logic U141V+
EI71 Analog fan-powered series

with optional on/off reheat
PN00 PN – N.O. Trane pneumatic

actuator, R.A. stat
PN51 PN – N.O. PVR, duct pressure

switch, R.A. stat
PN52 PN – N.O. PVR, dual pressure

main, R.A. stat

Notes:
N.C. = Normally-closed
N.O. = Normally-opened
DA Stat = Direct-acting pneumatic t-stat

(by others)

RA Stat = Reverse-acting pneumatic t-stat

(by others)

PN = Pneumatic
FM = Factory installation of customer-

supplied controller

PVR = Pneumatic Volume Regulator

Digit 16—Insulation

A 1/2" Matte-faced
B 1" Matte-faced
C 1/2" Foil-faced
D 1" Foil-faced
F 1" Double-wall
G 3/8" Closed-cell

Digit 17—Motor Type

D PSC Motor
E High-efficiency motor (ECM)

Water Coil and Electrical Connections
Note: Airflow hitting you in the face.

Note: VSCF, VSWF – Toggle Disconnect

Digit 18—Motor Voltage

1 115/60/1
2 277/60/1
3 347/60/1
4 208/60/1
5 230/50/1

Digit 19—Outlet Connection

1 Flanged
2 Slip & Drive

Digit 20—Attenuator

0 None
W With

Digit 21—Water Coil

0 None
3 1-Row–Discharge installed, LH
4 1-Row–Discharge installed, RH
5 2-Row–Discharge installed, LH
6 2-Row–Discharge installed, RH

Digit 22—Electrical Connections

L Left
R Right

Digit 23—Transformer

0 N/A (provided as standard)

Digit 24—Disconnect Switch

0 None
W With

VSEF – Door Interlocking Power
Disconnect

Digit 25—Power Fuse

0 None
W With

Digit 26—Electric Heat Voltage

0 None
A 208/60/1
B 208/60/3
C 240/60/1
D 277/60/1
E 480/60/1
F 480/60/3
G 347/60/1
H 575/60/3
J 380/50/3
K 120/60/1

VAV-SVN01E-EN 9

Fan-Powered Series Units (con't)

Digit 27, 28, 29—Electric Heat Kilowatts

000 None
050 0.5 kW
010 1.0 kW
015 1.5 kW

240 24.0 kW

Digit 30—Electric Heat Stages

0 None
1 1 Stage
2 2 Stages Equal
3 3 Stages Equal

Digit 31—Contactors

0 None
1 24-volt magnetic
2 24-volt mercury
3 PE with magnetic
4 PE with mercury

Digit 32—Airflow Switch

0 None
W With

Service Model
Number Description

10

VAV-SVN01E-EN

Service Model
Number Description

Fan-Powered Low-Height Parallel Units

Digit 1, 2—Unit Type

LP VariTrane fan-powered low-

height parallel

Digit 3—Reheat

C Cooling Only
E Electric Heat
W Hot Water Heat

Digit 4—Development Sequence

F Sixth

Digit 5, 6—Primary Air Valve

05 5" inlet (350 maximum cfm)
06 6" inlet (500 maximum cfm)
08 8" inlet (900 maximum cfm)
RT 8" x 14" inlet (1800 maximum cfm)

Digit 7, 8—Secondary Air Valve

00 N/A

Digit 9—Fan

V 08SQ 500 nominal cfm
W 09SQ 900 nominal cfm
X 10SQ 1800 nominal cfm

Digit 10, 11—Design Sequence

K0 Sixth (factory assigned)

Digit 12, 13, 14, 15—Controls

ENON No controls, field-installed DDC/

electric

PNON No controls, field-installed

pneumatic
DD00 Trane elec actuator only
DD01 DDC – cooling only
DD02 DDC – N.C. on/off water valve

control
DD03 DDC – prop hot water valve

control
DD04 DDC – on/off electric heat control
DD05 DDC – pulse-width modulation

control
DD07 DDC – N.O. on/off water valve

control
DD11 LonTalk DDC Controller—Cooling

only
DD12 LonTalk DDC Controller w/ N.C.

on/off hot water control
DD13 LonTalk DDC Controller w/

proportional hot water control

DD14 LonTalk DDC Controller–on/off

DD15 LonTalk DDC Controller w/
pulse- width modulation
electric heat control
DD17 LonTalk DDC Controller w/ N.O.

FM00 FM customer actuator & control
FM01 FM Trane actuator w/ customer-

VMA2 FM Johnson Controls VMA­1420
PWR1 FM Seimens 540-100 w/

PWR4 FM Seimens 540-100 w/ Trane

PWR5 FM Seimens 540-100 w/

AT01 FM Automated Logic U341V+
AT02 FM Automated Logic U141V+
EI05 Analog – fan-powered parallel

PN00 PN – N.O. Trane pneumatic

PN05 PN – N.O. PVR, R.A. stat

Notes:
N.C. = Normally-closed
N.O. = Normally-opened
DA Stat = Direct-acting pneumatic t-stat

RA Stat = Reverse-acting pneumatic t-stat

PN = Pneumatic
FM = Factory installation of customer-

PVR = Pneumatic Volume Regulator

Digit 16—Insulation

A 1/2" Matte-faced
B 1" Matte-faced
C 1/2" Foil-faced
D 1" Foil-faced
F 1" Double-wall
G 3/8" Closed-cell

Digit 17—Motor Type

D PSC Motor
E High-efficiency motor (ECM)

electric heat control

on/off hot water control

supplied controller

GDE131.1P actuator

actuator

GDE131.1U actuator

with optional on/off reheat

actuator, R.A. stat

(by others)

(by others)

supplied controller

Digit 18—Motor Voltage

1 115/60/1
2 277/60/1
3 347/60/1
5 230/50/1

Digit 19—Outlet Connection

1 Flanged
2 Slip & Drive

Digit 20—Not Used

0 N/A

Digit 21—Water Coil

0 None
1 1-Row–Plenum inlet installed
2 2-Row–Plenum inlet installed
3 1-Row–Discharge installed, LH
4 1-Row–Discharge installed, RH
5 2-Row–Discharge installed, LH
6 2-Row–Discharge installed, RH

Digit 22—Electrical Connections

L Left (airflow hitting you in the face)

Digit 23—Transformer

0 N/A (provided as standard)

Digit 24—Disconnect Switch

0 None
W With

Note: LPCF, LPWF – Toggle Disconnect

LPEF – Door Interlocking Power
Disconnect

Digit 25—Power Fuse

0 None
W With

Digit 26—Electric Heat Voltage

0 None
A 208/60/1
B 208/60/3
C 240/60/1
D 277/60/1
E 480/60/1
F 480/60/3
G 347/60/1
H 575/60/3
J 380/50/3

VAV-SVN01E-EN 11

Service Model
Number Description

Fan-Powered Low-Height Parallel Units (con't)

Digit 27, 28, 29—Electric Heat Voltage

000 None
005 0.5 kW
010 1.0 kW
015 1.5 kW
020 2.0 kW
025 2.5 kW
030 3.0 kW
035 3.5 kW
040 4.0 kW
045 4.5 kW
050 5.0 kW
055 5.5 kW
060 6.0 kW
065 6.5 kW
070 7.0 kW
075 7.5 kW
080 8.0 kW
090 9.0 kW
100 10.0 kW
110 11.0 kW
120 12.0 kW
130 13.0 kW
140 14.0 kW

Digit 30—Electric Heat Stages

0 None
1 1 Stage
2 2 Stages Equal

Digit 31—Contactors

0 None
1 24-volt magnetic
2 24-volt mercury
3 PE with magnetic
4 PE with mercury

Digit 32—Airflow Switch

0 None
W With

12

VAV-SVN01E-EN

Service Model
Number Description

Fan-Powered Low-Height Series Units

Digit 1, 2—Unit Type

LS VariTrane low-height series fan­powered

Digit 3—Reheat

C Cooling Only
E Electric Heat
W Hot Water Heat

Digit 4—Development Sequence

F Sixth

Digit 5, 6—Primary Air Valve

05 5" inlet (350 cfm)
06 6" inlet (500 cfm)
08 8" inlet (900 cfm)
RT (8" x 14" inlet (1800 cfm)

Digit 7, 8—Secondary Air Valve

00 N/A

Digit 9—Fan

V 08SQ 500 nominal cfm
W 09SQ 900 nominal cfm
X 10SQ 1800 nominal cfm

Digit 10, 11—Design Sequence

K0 Sixth (factory assigned)

Digit 12, 13, 14, 15—Controls

ENON No controls, field-installed DDC/

electric
PNON No controls, field-installed

pneumatic
DD00 Trane elec actuator only
DD01 DDC – cooling only
DD02 DDC – N.C. on/off water valve

control
DD03 DDC – prop hot water valve

control
DD04 DDC – on/off electric heat

control
DD05 DDC – pulse-width modulation

control
DD07 DDC – N.O. on/off water valve

control
DD11 LonTalk DDC Controller—

Cooling only
DD12 LonTalk DDC Controller w/ N.C.

on/off hot water control
DD13 LonTalk DDC Controller w/

proportional hot water control

DD14 LonTalk DDC Controller–on/off

DD15 LonTalk DDC Controller w/

DD17 LonTalk DDC Controller w/ N.O.

FM00 FM customer actuator & control
FM01 FM Trane actuator w/ customer-

VMA2 FM Johnson controls VMA-1420
PWR1 FM Seimens 540-100 w/

PWR4 FM Seimens 540-100 Trane

PWR5 FM Seimens 540-100 w/

AT01 FM Automated Logic U341V+
AT02 FM Automated Logic U141V+
EI71 Analog – Series fan-powered

PN00 PN – N.O. Trane pneumatic

PN51 PN – N.O. PVR, duct pressure

PN52 PN – N.O. PVR, dual pressure

Notes:
N.C. = Normally-closed
N.O. = Normally-opened
DA Stat = Direct-acting pneumatic t-stat

RA Stat = Reverse-acting pneumatic

PN = Pneumatic
FM = Factory installation of customer-

PVR = Pneumatic Volume Regulator

Digit 16—Insulation

A 1/2" Matte-faced
B 1" Matte-faced
C 1/2" Foil-faced
D 1" Foil-faced
F 1" Double-wall
G 3/8" Closed-cell

electric heat control

pulse-width modulation electric
heat control

on/off hot water control

supplied controller

GDE131.1P actuator

actuator

GDE131.1U actuator

on/off reheat

actuator, R.A. stat

switch, R.A. stat

main, R.A. stat

(by others)

t-stat (by others)

supplied controller

Digit 17—Motor Type

D PSC Motor
E High-efficiency motor (ECM)

Digit 18—Motor Voltage

1 115/60/1
2 277/60/1
3 347/60/1
5 230/50/1

Digit 19—Outlet Connection

1 Flanged
2 Slip & Drive

Digit 20—Not Used

0 N/A

Digit 21—Water Coil

0 None
3 1-Row–Discharge installed, LH
4 1-Row–Discharge installed, RH
5 2-Row–DIscharge installed, LH
6 2-Row–Discharge installed, RH

Digit 22—Electrical Connections

L Left (airflow hitting you in the face)
R Right (airflow hitting you in the face)

Digit 23—Transformer

0 N/A (provided as standard)

Digit 24—Disconnect Switch

0 None
W With

Note: LSCF, LSWF – Toggle Disconnect

LSEF – Door Interlocking Power
Disconnect

Digit 25—Power Fuse

0 None
W With

Digit 26—Electric Heat Voltage

0 None
A 208/60/1
B 208/60/3
C 240/60/1
D 277/60/1
E 480/60/1
F 480/60/3
G 347/60/1
H 575/60/3
J 380/50/3

VAV-SVN01E-EN 13

Service Model
Number Description

Fan-Powered Low-Height Series Units (con't)

Digit 27, 28, 29—Electric Heat Voltage

000 None
005 0.5 kW
010 1.0 kW
015 1.5 kW
020 2.0 kW
025 2.5 kW
030 3.0 kW
035 3.5 kW
040 4.0 kW
045 4.5 kW
050 5.0 kW
055 5.5 kW
060 6.0 kW
065 6.5 kW
070 7.0 kW
075 7.5 kW
080 8.0 kW
090 9.0 kW
100 10.0 kW
110 11.0 kW
120 12.0 kW
130 13.0 kW
140 14.0 kW
150 15.0 kW
160 16.0 kW
170 17.0 kW
180 18.0 kW

Digit 30—Electric Heat Stages

0 None
1 1 Stage
2 2 Stages Equal

Digit 31—Contactors

0 None
1 24-Volt magnetic
2 24-Volt mercury
3 PE with magnetic
4 PE with mercury

Digit 32—Air Flow Switch

0 None
W With

14

VAV-SVN01E-EN

General

WARNING

CAUTION

CAUTION

Information

Literature Contents

This manual describes the installation
of VariTrane VAV units with recom­mended wiring, piping, and mounting
of Single-Duct, Dual-Duct, Fan-Pow­ered, Low-Height terminal units and
diffusers.

Receiving and Handling

VariTrane Units are shipped completely
assembled with the exceptions of
optional attenuators for fan-powered
units and accessories.

Upon receiving the equipment,
complete the following:

y Locate the nameplate and refer to the

model and sales order number and
check that the correct units have been
delivered.

y Inspect the control enclosures and air

valve casing for dents or punctures.

y Verify that all options have been

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

y Manually rotate the fan (if applicable) to

assure that there are no obstructions
within the housing.

y Claims for in-transit damage must be

filed immediately with the delivery
carrier.

y For hot water re-heat units, check the

coil fins and make sure that coils are
not damaged.

y 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
location until needed. Accessories lost
at the jobsite are NOT covered by
Trane’s warranty.

y If a discrepancy occurs between what

was ordered and what is received,
contact you local Trane representative
immediately.

y Read the appropriate section in this

manual for installation procedures prior
to actual starting of equipment.

Upon receiving the equipment, please
inspect each unit and components for
external or internal damage. Refer to
the bill of lading to insure all equipment
and accessories have been received.
Contact your local Trane sales
representative and notify the trucking
company immediately of any short ship
or damaged equipment.

NOTICE:

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

WARNING

– Indicates a potentially hazardous situation which, if

not avoided, could result in death or serious injury.

CAUTION

– Indicates a potentially hazardous situation which, if

not avoided, may result in minor or moderate injury. It may also be used
to alert against unsafe practices.

CAUTION

– Indicates a situation that may result in equipment or

property-damage-only accidents.

VAV-SVN01E-EN 15

Unit
Information

Single-Duct Units

The basic unit consists of a sheet metal
casing with an air valve, which is used
to modulate the air being delivered into
the occupied zone. The unit is designed
to modulate either cooling or heating
air between the temperatures of 40°F
and 140°F. Air enters the air valve
through the round or rectangular inlet
and exits into the sheet metal casing to
be distributed to the zone either
through integral round outlets in the
casing or through rectangular duct
attached to the discharge of the unit.

The basic unit can also be ordered with
factory-mounted electric or hot water
heating coils attached to the discharge.
(See Figure 1.)

These re-heat units are used primarily
to reheat air-to-zone temperature when
the load in the occupied space is low.

Primary air is modulated through the
VariTrane air valve by rotating the
damper blade. All air valves have a
round/rectangular inlet for easy fit-up
with incoming ductwork.

Figure 1 – Typical Single-Duct Units

VCCF

VCWF

VCEF

Dual-Duct Units

Dual-duct units provide two air valves:
one as heating primary air and the
other as cooling primary air. Both
discharge into the common outlet,
which leads to the zone being con­trolled. (See Figure 2.)

The units are provided with a slip and
drive rectangular duct connection or
can be ordered with integral outlet
plenum.

Sequencing of the hot and cold air
valve is dependent upon job
requirements. One typical control is the
valves working in conjunction with each
other to respond to zone temperature.

When the cooling valve becomes fully
closed or reaches a specified minimum,
then the heating valve will begin to
modulate or vice versa. The typical
result is that air flowing to the zone
varies from the maximum down to a
minimum and back up to a maximum
as the load varies and as the controls
would cause one air valve to close and
the other to open.

Another typical application is when the
unit provides a constant volume to the
zone. When the zone sensor is tied
directly to the heating valve, it will
modulate the heating valve according
to the zone temperature.

When the heating valve is fully closed
or there is a call for cooling in the zone,
the cooling valve will be at constant
supply. As the space becomes too cool,
the heating valve will modulate open,
decreasing the cooling valve flow. The
typical result is that the air flowing into
the zone stays at a constant flow
whether the unit is heating or cooling.

Figure 2 – Typical Dual-Duct Unit

VDDF

16

VAV-SVN01E-EN

Unit
Information

Fan-Powered and Fan-Powered
Low-Height Units

VariTrane fan-powered and low-height
fan-powered units can be either parallel
or series, with or without re-heat. (See
Figure 3.)

The fan on a series unit runs
continuously whenever the main air
handler unit is in operation. There are
various options for starting the fan. The
fan can be started three ways: 1)
remotely, 2) by a duct pressure switch,
or 3) by a combination of both. The
particular fan control method may vary
from unit to unit, depending upon job
needs.

Typically, the heater is off while the air
valve modulates primary air and
responds to zone temperature. If zone
temperature decreases to the point
where a decrease in primary air will not
maintain the desired temperature, the
re-heat will be activated to increase the
temperature of the discharge air.

On a parallel unit, the VariTrane air valve
delivers primary cooling air to the unit
outlet. When the space temperature
decreases beyond air valve control, the
fan is turned on as the first stage of
heat. The fan delivers plenum air from
above the occupied space to the unit
outlet, which is mixed with primary air
and delivered to the occupied space.

VariTrane fan-powered unit fan sizes
02SQ–05SQ and 08SQ–10SQ were
performance tested at .12 in. w.g. and
sizes 06SQ and 07SQ were tested at .15
in. w.g. Units are not designed to
operate unducted and below these
tested static pressures.

Note: Fan-powered units are available
with rectangular discharge connection
only. The optional heater is mounted on
the discharge of the unit. Hot water coils
are connected to either the plenum inlet
or on the discharge on parallel units, and
to the discharge of series units.

Figure 3 – Typical Fan-Powered Units

VSCF

VPCF

Note: Either the fan, the air valve, or both
can deliver airflow into the occupied
space. In order to prevent primary airflow
from exiting through the fan when the
fan is not running on a parallel unit, a
back draft damper is provided. When the
fan is not running, the efficiency of this
system is the same as a standard single­duct VAV unit.

Typically, the control systems applied to
parallel units cause the air valve to
close to zero or a minimum flow before
the fan is activated. After the fan is
activated, the optional heat will be
activated upon further reduction in
zone temperature. Therefore, minimal
primary air is mixed with the heated air.

VAV-SVN01E-EN 17

VSEF

VSWF

VPEF

VPWF

Unit
Installation

Due to their weight, the VAV terminal
units should be suspended from the
uppermost ceiling, independent of the
false ceiling grid. Suspension devices
are to be supplied by the installer. Units
must be installed level and upright.
Failure to level the unit properly may
prevent proper operation of the
controls and/or terminal unit. Units are
not designed to be installed vertically.
Consequently, this will also void the UL
ratings and any warranty on the unit.

Single-Duct

Depending upon the size and weight of
the single-duct unit, it may be capable
of being supported by the ductwork
that is connected to it. No hanger
brackets are provided on these units
since the unit should be supported by
means of a hanger strap. The hanger
strap should be secured directly to the
unit casing as shown in Figure 4.

For cooling only single-duct units or
single-duct units with hot water coil, the
unt may be rotated 180° for opposite
side connections.

For units with electric heat, the unit
must be ordered from the factory
designating either right- or left-hand
connections.

Dual-Duct

Dual-duct units should be supported by
either hanger straps or by using a
threaded rod in conjunction with the
hanger brackets that are provided on
the unit. See Figure 5.

Figure 5

Dual-Duct Hanger Bracket Locations

AIR

VALV E

COOLING

AIR

VALV E

HEATING

CA

B

Figure 4

Single-Duct Hanging
Recommendations

18

Inlet Size

5" thru 10"

12" thru 16"

TOP VIEW

BCA

25.25" (641 mm)23.154" (588 mm)

25.154" (639 mm) 1.376" (35 mm)

37.25" (946 mm)

1.376" (35 mm)

VAV-SVN01E-EN