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TVS user manual
Phason
Appendix C – Troubleshooting guide
PROBLEM
CAUSE
SOLUTION
No Power/Display
Circuit breaker at service panel off
or tripped
Wiring incorrect
Display board inter-connect cable
unplugged from power supply
board
115/230 VAC switch in the wrong
osition
p
Reset circuit breaker
Correct wiring
Plug in display board cable
Set switch to the correct setting
Stage 1/Stage 2 fan(s)
not running
Wiring incorrect
12 A, 250 VAC ABC-type ceramic
fuse
open
Display board inter-connect cable
is not plugged into the power
supply board properly
Minimum ventilation settings too
low (Parameters 2/3)
Stage 1/Stage 2 Minimum Idle
setting too low (Parameters 21/22)
Temperature Set setting above
room temperature (Parameter 1)
Room temperature below range of
Stage 1 / Stage 2 Off-Set-Back
(Parameters 4/6)
Ventilation is turned off (V off)
(Parameter 16)
Fan is faulty
Correct wiring
Replace fuse(s)
Be sure the inter-connect cable is
firmly plugged in
Increase minimum ventilation
settings
Increase minimum idle setting
Adjust Temperature Set to desired
temperature
Adjust Off-Set-Back to cover
required range
Change Ventilation to on
Replace fan
42 2009-09-15
Содержание Three Ventilation Stage Control
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