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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
6
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
VAV-SVN01E-EN
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