Installation
RT-SVX35H-EN
33
Note:
Fan assemblies not equipped with rubber or spring isolators have mounting bolts at the same locations and must not be removed.
O/A Sensor & Tubing Installation
An Outside Air Pressure Sensor is shipped with all units
designed to operate on variable air volume applications or
constant volume units with 100% modulating exhaust w/
Statitrac.
On VAV systems, a duct pressure transducer (3U60) and
the outside air sensor is used to control the discharge duct
static pressure to within a customer-specified parameter.
On CV & VAV units equipped with 100% modulating
exhaust w/Statitrac, a space pressure transducer (3U62)
and the outside air sensor is used to control the exhaust
fan and dampers to relieve static pressure, to within a
customer-specified parameter, within the controlled
space. Refer to
and the following steps to install
the sensor and the pneumatic tubing.
1. Remove the O/A pressure sensor kit located inside the
filter section. The kit contains the following items:
–
an O/A static pressure sensor
–
a sensor mounting bracket
–
2' of 3/16" O.D. pneumatic tubing
–
mounting hardware
2. Using two #10-32 x 1-3/4" screws provided, install the
sensor's mounting bracket to the factory installed
bracket (near the filter section).
3. Using the #10-32 x 1/2" screws provided, install the O/
A static pressure sensor vertically to the sensor
bracket.
4. Remove the dust cap from the tubing connector
located below the sensor in the vertical support.
5. Attach one end of the 2' x 3/16" O.D. factory provided
pneumatic tubing to the sensor's top port, and the
other end of the tubing to the connector in the vertical
support. Discard any excess tubing.
Units with
Statitrac™
6. Open the filter access door, and locate the DSP control
). There are three tube
connectors mounted on the left of the solenoid and
transducers. Connect one end of the field provided 3/
16" O.D. pneumatic tubing for the space pressurization
control to the bottom fitting. Route the opposite end of
the tubing to a suitable location inside the building.
This location should be the largest open area that will
not be affected by sudden static pressure changes.
Important:
If the building has two or more large areas,
the static pressures can be averaged by
routing equal length tubes to each location.
Figure 14. Removing fan assembly
shipping hardware — W_HE casing 9
Summary of Contents for IntelliPak WEHE Series
Page 15: ...General Information RT SVX35H EN 15 Figure 1 Unit component layout and ship with locations...
Page 17: ...Installation RT SVX35H EN 17 Figure 2 Typical control module location...
Page 44: ...Installation 44 RT SVX35H EN Figure 27 Typical field power wiring for W_HE casings 2 through 6...
Page 56: ...Installation 56 RT SVX35H EN Figure 32 Wiring notes for CV controls...
Page 60: ...Installation 60 RT SVX35H EN Figure 35 Wiring notes VAV...
Page 68: ...System Start up 68 RT SVX35H EN Figure 38 Typical fenwall ignition control system...
Page 69: ...System Start up RT SVX35H EN 69 Figure 39 Typical Fenwall ignition control system...
