Ecm Cfm Settings - Trane Axiom WSHP Series Installation, Operation And Maintenance Manual

Installation

ECM CFM Settings

To adjust the CFM, disconnect the power to the unit. Set
the DIP switch located in the control box to the desired
profile setting. Connect the power to the unit.
Figure 18. Units with Deluxe 24V controls and ECM
motors – DIP switch settings
Note: Units with the optional ECM with deluxe 24V controls
are shipped from the factory on Profile B.
• Profile A = 110% of rated airflow
• Profile B = 100% of rated airflow
• Profile C = 90% of rated airflow
• Profile D = 80% of rated airflow
Table 15. PSC blower motor external static pressure without return air door (RAD) with filter
Model
CFM
Speed Ducted
Tap
Unit (a)
Max
High
Yes 408
Low Yes -
GET009
High
No -
Low No -
High
Yes 453
Low Yes -
GET012
High
No -
Low No -
30
External Static Pressure (in. of wg)
0.00 0.05
Min CFM KW CFM KW CFM KW CFM KW CFM KW CFM KW CFM KW CFM KW CFM KW
- 421 0.108 388 0.107 354 0.106 320 0.104 283 0.103 244 0.102
- 355 0.073 332 0.072 307 0.070 278 0.068 245 0.067
- 357 0.073 333 0.071 309 0.070 282 0.069 253 0.067
272 307 0.061 297 0.06
- 453 0.140 433 0.137 412 0.134 390 0.130 367 0.127 342 0.124 316 0.121 288 0.118
- 401 0.112 383 0.109 362 0.106 340 0.103 318 0.100 295 0.097
- 418 0.125 400 0.122 379 0.120 356 0.117 332 0.113 309 0.110 286 0.107
304 345 0.097 331 0.095 313 0.092 292 0.090
Installation at higher altitudes may require an adjustment to
the fan speed setting to achieve proper airflow. Use profile
C or D to get lower airflow. If a lower CFM is needed, then
set DIP switch 4 to ON.
Figure 19. Units with Symbio™ 400-B controls and
ECM motors – DIP switch settings
Installations at altitudes above 2000 feet may require an
adjustment to the fan speed setting to achieve the proper
airflow. To adjust the airflow to get the desired CFM, set the
DIP switches located in the control box to the proper profile
setting. Tracer® TU can be used to make further
adjustments to the fan speed.
Use the following table to select the correct profile to use.
Table 14. Profiles for altitude range
Profile
0.10 0.15 0.20
280 0.059 258 0.058 -
-
Altitude (Feet)
A
B 2000–4000
C 4000–6000
D Above 6000
0.25 0.30
- -
- - - -
- - - -
- - - - -
- -
- - - - -
WSHP-SVX020A-EN
0–2000
0.35 0.40
- - - -
- - - -
- - - -
- - - -
- -
- - - -
- - - -
- - - -