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SDV5000 c/w direct digital controls
SERVICE & INSTALLATION MANUAL
Installing the SDV 5000 Terminal Unit
The basic SDV 5000 is light enough that it can be supported by the
ductwork in which it is installed. Where accessory modules, such
as coils, attenuators or multiple outlets are included, the assembly
should be supported directly. Use the support method prescribed
for the rectangular duct in the job specifications.
Important: For optimum performance there should be a
minimum of three duct diameters of straight inlet duct, same
size as the inlet, between the inlet and any transition, take
off or fitting.
The assembly should be mounted right side up. It should be level
within ±10 degrees of horizontal, both parallel to the air flow and
at right angles to the air flow. The side of the assembly is labelled
with an arrow indicating UP. Do not mount the control side of the
assembly tight to a wall, pipe or other obstruction. Allow sufficient
room for access to the controls.
To prevent excess air leakage, all joints should be sealed with an
approved duct sealer. This would apply to all accessory module
connections as well as the basic assembly.
Damper rotation is always clockwise to the open position. An
identification mark on the end of the shaft indicates the damper
position. Capped "T"s are provided in the sensing lines from the
amplifying sensor. These allow field connection of a differential
pressure gauge for accurate air flow measurement.
The factory supplied sensing lines are color coded. Red indicates
the total pressure or ”HI“ line which should be located on the
upstream side. Green indicates the static pressure or ”LO“ line
which should be located on the downstream side.
An optional protective enclosure may be provided to house the
terminal unit control components. The enclosure cover is removable
with two sheet metal screws.
The velocity sensor is normally supplied as standard with the
terminal unit. However, in some cases a flow sensing device
supplied by the controls contractor may be factory or field mounted.
Refer to the submittal drawing for illustration.
The air volume ranges listed are recommended for optimum
performance. A minimum value of zero is also acceptable if no
heating coils are attached.
Selection of air flow limits below the listed values is not
recommended. Stability and accuracy may not be acceptable at
lower than recommended air flow limits. The actual performance
will vary depending on the terminal unit controls supplied.
Notes:
Factory calibrated controls must be selected within the above flow
range limits. A minimum value of zero is also available. When an
auxiliary flow setting is specified, the value must be greater than the
minimum setting and within the range limits.
On controls mounted by Price but supplied by others, the air volume
ranges are guidelines only.
Selection of air flow limits below the listed values is not recommended.
Stability and accuracy may not be acceptable at lower than recom-
mended air flow limits. The actual performance will vary depending
on the terminal unit controls supplied.
SDV 5000
General Description
The SDV 5000 assembly is designed to accept direct digital controls
(DDC) for VAV pressure independent operation.
The terminal unit controls are supplied by the controls contractor
and either factory or field mounted and wired. For information
concerning controls, components, sequence of operation, etc.,
please refer to the documentation provided by the controls
contractor.
Receiving Inspection
After unpacking the assembly, check it for shipping damage. If any
shipping damage is found, report it immediately to the delivering
carrier. During unpacking and installation do not handle by the
inlet velocity sensor, damper shaft, or tubing. Damage may result.
Wiring
If controls have been factory mounted, a wiring diagram will be
included with the unit indicating the factory mounted components.
For field wiring of room sensors and other accessories, refer to
the controls contractor's documentation. If the controls have been
field mounted, refer to the controls contractor's documentation
for all wiring information.
CFM L/S
Unit Size Min. - Max Min. - Max
4 50 - 225 24 - 106
5 63 - 350 30 - 65
6 66 - 450 31 - 212
7 99 - 650 47 - 307
8 132 - 800 62 - 378
9 167 - 1050 79 - 496
10 221 - 1350 104 - 637
12 304 - 2100 143 - 991
14 439 - 3000 207 - 1416
16 568 - 4000 268 - 1888
24 x 16 1187 - 8000 500 - 3776
Air Volume Ranges
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