
100.210-IOM (FEB 2015)
Page 19
VYPER
™
VARIABLE SPEED DRIVE
INSTALLATION
VYPER
™
COOLING CONFIGURATION
The. Frick. Vyper
™
. is. internally. cooled. with. a. factory. cali-
brated. liquid. cooling. circuit. that. offers. many. advantages.
over.traditional.air-cooled.systems..The.liquid.circuit.pro-
vides.precisely.controlled.coolant.temperatures.to.the.heat.
generating.components.and.delivers.coolant.into.locations.
that.air-over.fan.systems.could.not.penetrate..The.Vyper
™
.
liquid-cooling. arrangement. performs. independently. of.
fluctuating. ambient. conditions.. The. NEMA. 4. indoor-rated.
cabinet.seals.the.internal.electronics.and.piping.from.cor-
rosive.refrigerant.vapors.while.providing.superior.cooling.for.
the.internal.electronic.components..Efficient.liquid.cooling.
also.allows.for.smaller.cabinet.size.and.longer.component.
life.than.traditional.air-cooled.units..Plant.condenser.water.
or.a.facility-supplied.glycol.loop.subsequently.removes.the.
heat.in.the.coolant.via.the.heat.exchanger.located.at.the.
back.of.the.Vyper
™.
cabinet.
VYPER
™
COOLING LOOP
While.the.compressor.is.running,.the.Quantum
™
LX.control.
panel.monitors.the.temperature.of.Vyper
™
.drive.coolant..With.
this.information,.the.Quantum
™
LX.delivers.a.4-20.mA.signal.
to.the.3-way.mixing.valve,.based.on.the.setpoints.of.a.PID.
loop.output.from.the.Quantum
™
LX..This.signal.will.maintain.
the.Vyper
™
.coolant.temperature.at.the.control.setpoint.for.
the.PID.loop..This.setpoint.will.be.set.at.110°F.at.the.factory..
There.are.also.low.and.high.temp.alarms.and.shutdowns.as-
sociated.with.the.Vyper
™
.coolant.temperature.reading..These.
wil.also.be.factory.set.for.a.Low.Temp..alarm.and.shutdown.
at.85°F.and.80°F.with.a.90.second.delay,.when.running..The.
high.Temp..Alarm.and.shutdown.will.be.factory.set.at.125°F.
and.130°F.with.a.30.second.delay.when.running..If.the.Vyper
™
.
coolant.temperature.drops.too.low,.condensation.may.occur,.
damaging.vital.electronic.components.
In.addition.to.controlling.the.Vyper
™
.cabinet.cooling.system,.
the.Quantum
™
LX.panel.also.monitors.the.temperature.of.four.
components.in.the.Vyper
™
.cabinet..If.any.of.these.tempera-
tures.reaches.a.critical.threshold,.the.Quantum
™
LX.panel.will.
enter.a.Stop.Load.condition,.preventing.either.the.slide.valve.
position.or.motor.speed.from.increasing..If.the.temperature.
continues.to.rise,.the.Quantum
™
LX.panel.will.next.go.to.a.
Force.Unload.condition..In.this.situation,.the.slide.valve.will.
unload.to.lower.the.motor.torque.required,.in.an.effort.to.drop.
the.temperature.in.the.panel..Table.7.shows.the.Stop.Load.
and.Force.Unload.temperatures.as.well.as.the.temperatures.
where.the.Vyper
™
.cabinet.will.automatically.shut.down.
TABlE 7 – VyPEr
™
CABInET ComPonEnT TEmPErATUrE
THrESHolDS
Location
Stop Load
Force
Unload
Shutdown
Baseplate Temp
Inverter
160°F
(71°C)
165°F
(74°C)
170°F
(77°C)
Heat Sink Temp
155°F
(68°C)
160°F
(71°C)
158°F
(70°C)
Harmonic Filter
130°F
(54°C)
135°F
(57°C)
145°F
(63°C)
Baseplate Temp
160°F
(71°C)
165°F
(74°C)
175°F
(79°C)
the.foundation.must.be.able.to.support.the.weight.of.the.
cabinet.and.base..In.addition,.the.Vyper
™
.cabinet.must.be.
located.so.that.no.more.than.fifty.(50).feet.(15.meters).of.
motor.wiring.length.is.needed.between.the.VSD.cabinet.and.
the.package.motor.
The.remote-mounted.units.have.fastener.holes.located.on.
the.bottom.of.the.base.for.floor.anchors..If.optional.stand.
is.used,.fastener.holes.are.located.on.the.rear.stand.legs.
for.wall.anchoring.
Anchor.bolts.are.recommended.to.firmly.mount.the.unit.to.
the.foundation..Anchoring.the.cabinet.to.a.firm.foundation.
by.proper.leveling.and.employment.of.fastening.bolts.is.the.
best.assurance.for.trouble-free.installation...
Foundations.must.be.in.compliance.with.local.building.codes.
and. materials. must. be. of. industrial. quality.. All. electrical.
conduits.must.be.metallic,.no.PVC.or.other.materials.are.
permitted.. The. remote-mounted. Vyper
™. .
configuration. is.
shown.in.Figure.7..Table.6.provides.the.dimensions.of.the.
unit.and.stand..The.mounting.location.of.remote-mount.units.
must.be.able.to.support.the.weight.of.the.Vyper
™
..Dimensions.
of.the.package-mount.cabinets.are.identical.except.for.the.
elimination.of.the.optional.stand..Coolant.connections.to.the.
heat.exchanger.are.1.in..NPT.
ENVIRONMENT
The.Vyper
™
..is.housed.in.a.NEMA.4.indoor.class.enclosure...
The. electronics. are. sealed. against. ambient. conditions,.
however.it.is.recommended.that.the.end.user.employ.good.
standard.practices.in.regard.to.moisture.exposure.and.ex-
treme.temperature.conditions..It.is.recommended.that.the.
Vyper
™
.be.operated.within.the.ambient.temperature.range.
of.41°F.(5°C).and.135°F.(57°C).with.the.dew.point.no.higher.
than.90°F.(32°C)..Refer.to.Table.6.for.temperature.limits.
TABlE 6 – AmBIEnT TEmPErATUrE oPErATIng lImITS
Recommended Ambient Temperature Limits
Unit Status
Min
Max
Storage
-4°F (-20°C)
158°F (70°C)
Operating
41°F (5°C)
135°F (57°C)
The.Vyper
™
.can.be.used.at.altitudes.up.to.10,000.feet.(3048.
meters). without. derating. for. units. without. the. IEEE. 519.
harmonic.Filter..A.Vyper
™
.with.the.harmonic.Filter.option.
included. can. be. operated. up. to. 5,000. feet. (1524. meters).
without. derating.. Remotely. mounted. units. must. have. the.
distance.limited.between.the.Vyper
™
.and.the.compressor.
motor.to.fifty.(50).feet.(15.meters).of.wire.or.less..Problems.
that.may.be.encountered.with.wire.lengths.greater.than.fifty.
feet.are.as.follows:
•. VSD.picks.up.interference.in.the.control.wiring,.causing.
the.VSD.to.intermittently.trip...
•. Voltage. drop. becomes. excessive,. rising. above. the. 5%.
voltage.drop.limit.
•. Peak. voltage. applied. to. the. motor. windings. becomes.
excessive.and.may.cause.premature.motor.failure.
•. A. dV/dt. filter. must. be. installed. on. remote-mounted.
units. with. motor. power. lead. lengths. between. 3. to. 50.
feet.(1.to.15.meters).
Adequate. service. clearances,. including. door. swing,. must.
be.maintained.around.the.Vyper
™
..During.installation,.care.
should.be.taken.to.ensure.that.the.Vyper
™
.and.the.associated.
piping.and.wiring.do.not.obstruct.access.to.service.areas.