6
Tr
ou
ble
sh
oo
tin
g
Tr o u b l e s h o o t i n g l
6-29
IMPORTANT
: Always refer
to the wiring diagrams that
came with your dryer to
locate specific electrical
components. Illustrations in
the User Guide are intended
to be representative only.
Checking Heater Solid State Relays
1
Disconnect and lockout the main power supply.
2
Open the electrical enclosure.
3
Locate the regeneration solid state relays.
Refer to the wiring diagrams that came
with your dryer.
4
Turn power on to the
machine.
5
Start the dryer.
6
Measure voltage across the high voltage connections using a voltmeter.
When
relay is energized, as indicated by the LED (green) voltage should be read 0 (zero).
When relay is de-energized, LED off, full voltage should be measured across the
relay. When relay is off, if voltage reads zero, relay is bad and needs replaced.
Repeat this procedure for each relay.
CAUTION:
Always disconnect and lock out the main power sources before
making electrical connections. Electrical connections should be made only by
qualified personnel.
✐
NOTE:
Measure voltage using a voltmeter across the two high voltage connections of each
relay. (Shown here circled in red.)
Regeneration heater
solid state relays
Process heater
solid state relays
OFF
O
ON
I
IMPORTANT
: Only qualified
personnel should take
measurements on energized
equipment. Follow all local,
regional, and company
guidelines regarding safe
electrical testing proce-
dures.
Summary of Contents for Carousel Plus UGD043-1216
Page 7: ...Table of Contents l v...
Page 8: ...vi l Table of Contents...
Page 48: ...3 24 l Installation Testing...
Page 54: ...4 6 l Operation Control Function Flow Charts continued Login Flow Chart...
Page 55: ...4 O p e r a t i o n Operation l 4 7 Operation Basic Controls...
Page 56: ...4 8 l Operation Control Function Flow Charts continued Operation Flow Chart 1 continued...
Page 58: ...4 10 l Operation...
Page 59: ...Operation Dew Point Package Controls 4 O p e r a t i o n Operation l 4 11...
Page 60: ...Control Function Flow Charts continued Operation Flow Chart 1 4 12 l Operation...
Page 62: ...4 14 l Operation...
Page 63: ...4 O p e r a t i o n Operation l 4 15 Operation Setup Control...
Page 64: ...4 16 l Operation Control Function Flow Charts continued continued Setup Flow Chart 1...
Page 66: ...4 18 l Operation continued Control Function Flow Charts continued Equipment Setup Flow Chart 2...
Page 164: ...6 46 l Troubleshooting...