Trane CSAA User Manual

Start-Up
136 CLCH-SVX07K-EN
Fan Inlet Airflow Measuring System
A fan inlet airflow measuring system (piezometer) is
available on many centrifugal and plenum fans. Trane’s
system determines airflow using a static pressure
differential.
Note: This type of system is different than a total pressure
or thermal dispersion system. As such, the
calculations will be different.
Each system comes with a differential pressure
transmitter. The minimum diameter is connected to the LO
port of the transmitter and the reference pressure point is
connected to (or actually is) the HI port of the transmitter.
Table 50. Side inlet low-flow Traq dampers - diagonal economizer section
Unit size Part number
Traq damper
size (in) Damper type Qty
Peak velocity
(fpm)
Total area
(ft
2
)
CFM@10VDC
peak velocity
L/s@ 10VDC
peak velocity
4 495100860001 13 Min. Outside Air 1 2475 0.92 2279 1076
6 495100860001 13 Min. Outside Air 1 2475 0.92 2279 1076
8 495100860001 13 Min. Outside Air 1 2475 0.92 2279 1076
10 495100870001 16 Min. Outside Air 1 2475 1.40 3455 1630
12 495100870001 16 Min. Outside Air 1 2475 1.40 3455 1630
14 495100870001 16 Min. Outside Air 1 2475 1.40 3455 1630
17 495100860001 13 Min. Outside Air 1 2475 0.92 2279 1076
21 495100890001 20 Min. Outside Air 1 2600 2.18 5671 2676
25 495100870001 16 Min. Outside Air 1 2475 1.40 3455 1630
30 495100890001 20 Min. Outside Air 1 2600 2.18 5671 2676
35, 40 495100900001 28 Min. Outside Air 1 2600 4.27 11,112 5244
50 495100880001 24 Min. Outside Air 1 2600 3.14 8164 3853
57 495100880001 24 Min. Outside Air 1 2600 3.14 8164 3853
66 495100900001 28 Min. Outside Air 1 2600 4.27 11,112 5244
80 495100900001 28 Min. Outside Air 1 2600 4.27 11,112 5244
100, 120 495100900001 28 Min. Outside Air 1 2600 4.27 11,112 5244
Trane utilizes AMCA certification for airflow measuring stations. Trane certifies that the Traq damper herein is licensed to bear the
AMCA seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 611 and comply
with the requirements of the AMCA Certified Ratings Program.
The certification program provides the engineer and owner assurance that manufacturer-published performance ratings for
airflow measurement stations are accurate and repeatable. Trane Traq dampers are certified with the integral ventilation control
module which converts differential pressure to an electronic signal for control.
Refer to Performance Climate Changer Air Handler catalog CLCH-PRC015-EN for Traq damper testing and rating information.
Figure 168. Fan inlet airflow measuring system

Trane CSAA Specifications

General

Brand	Trane
Model	CSAA
Category	Air Handlers
Language	English