Installation and Operating Instructions
UK
CHAPTER 5
FAULT DIAGNOSTICS
CHAPTER 6
WIRING DIAGRAMM-
OVERVIEW
for GB.. T120
Centrifugal fans – GigaBox GBW../GBD.. T120
5.0
Indications – Disturbance origins
Triggering of motor overheat protection (TK) can indicate
- wrong direction of rotation ( I ~ 2x I
- built up of dirt, hard running impeller and/or ball bearing failure
- too high air flow temperature
Abnormal noises can mean
- wrong direction of rotation
- worn out ball bearings
- bad vibration isolation to other buildings and ducting systems
Vibration can originate from
- unbalanced or dirty impellers
- insufficient vibration isolation from buildings and ducting systems
Extreme reductions in performance can occur
- with wrong direction of rotation
- if resistance to air stream through ducting and accessories (grilles, shutters, filters etc.) is higher than designed
SS-935
GBW.. T120
alternating
current,
1~ 230 V
TK in Reihe nur
mit Motor < 6A
L
85069 001 SS-935 24.03.09
SS-520
GBD 560/4/4 T120
rotary current,
3~ 400 V
32483 SS-520
)
n
U1-braun (BN)
U2-blau (BU)
Z1-schwarz (BK)
Z2-orange (OG)
TK-weiß (WH)
PE-gelb/grün (YE/GN)
N PE
6
TK TK
L
N PE