19
Friedrich PTAC Digital Control and Unit Features
The.new.Friedrich.digital.PTAC.has.state.of.the.art.features.to.improve.guest.comfort,.indoor.air.quality.and .conserve.energy...Through.the.use.of. .
designed.control.soft w are.for.the.PTAC.industry.Friedrich.has.accomplished.what.other.Manufact urer’s.have.only.attempted.–.a.quiet,.dependable,.aff ordable.
and.easy.to.use.PTAC.
Below.is.a.list.of.standard.features.on.every.Frie drich.PTAC.and.thei r.
.to.the.owner.
Digital Temperature
Readout
By.digitally.monitoring.desired.room.temperature .the.room.is.controlled .more.precisely.than.conventional.systems...
The.large,.easy.to.read.LED.display.can.show.either.set-point.or.actual.ro om.temperature.as.selec ted.by.owner.
One-Touch.O peration
When .the.unit.is.powered.off.the.u nit.can.be.returned.d irectly.to.heating.or .cooling.mode.by.pre ssing.the.‘Heat’.or.
‘Cool’.buttons.without.the.confusin
g
.power.up.sequence.of.some.controls...One-touch.control.takes.gu esswork.out.
of.unit.control.delivering.a.more.e njoyable.experience.and.eliminating.front-desk.calls.
Three.Fan.Speeds
The.Friedrich.PTAC/PTHP.units.feature.three.fan.speeds.for.the.user.to.select.from...Th is.allows.the.user.to.
properly.match.the.amount .of .
.for.their.comfort.level.and.also.deliver's.qu iet.performance.
Indiv idual.Mode.a nd
Fan.Control.Buttons
By.having.separate.control.buttons.and.indicators.fo r.both.fan.and.mode.settings.the.Friedrich.digital.control.
elimin ates.the.confusion.of.previous.digital.PTACs...The.accurate.temperat ure.settin g.provides.greater.guest.
comfort.than.other.systems.
Quiet.Start/Stop
Fan.Delay
The.fan.start.and.stop.delays.prevent.abrupt.changes.in.room.acoustics.due.to.the.compressor.energizing.or.
s
topping.immediately...Upon.call.fo r.co oling.or.heatin g.the.unit.fan.wi ll.run.for.
.seconds.prior.to.energ izing.the.
compressor...Also,.the.fan.off.delay.allows.for .“free.cooling” .by.utilizing.the.already.cool .indoor.coil.to.its .max imum.
cap a city.by.running.for.30.secon ds.after.the.compressor.
Two-Speed.Wall.
Thermostat.Mode
When .connecte d.to.a.wall.thermostat.the.user.can .select.from.high.or.low.fan.speed.at.the.thermostat,.unlike.
competitive.models.that.have.only.one.speed.s election...This.allows.for.more.comfortab le.and.quieter.operation...
Re
quires .the.use.of.Fr iedrich.remote.thermostat .R T6.or.equivalent.thermostat.with.two.speed.fan.output.
Remote.Ther mostat
Ope ration
Some .applications.re quire.the.use.of.a.wall.mounted.thermostat...All.new.Friedrich.PTACs.may.be.switched.from.
unit.control.to.remote.thermo s tat.control.easil y.without.the.need.to.order.a.special.mod el.or.accessory.kit.
Internal.Diagnostic
P
rogram
The.Friedrich.digital.PTAC.features.a.self.diagnostic.program.that.can.alert.maintenance.to.component.failures.
or.ope rating.prob lems...The.internal.diagnostic.program.saves.properties.valuable.time.w hen.diagnosing.running.
problems.
Service.Error.Code
Storage
The.self.diagnosis.program.will.also.sto re.error.codes.in.memory.if.certain.conditions.occur.and.correct.
themselves.such.as.extreme.high.or.low.operating.con ditions.or.activation.of.the.room.free ze.protection.feature...
S
toring.error.codes.can .help.properties.determi ne.if.th e.unit.faced.obscure.conditions.or.if.an.error.occurred.and.
corrected.i tself.
Electronic
Temp erature.Limiti ng
By.limiting.the.operating.range.the.property.can.save.energy .by.eliminati ng.“max.cool”.or.“m ax.heat”.situations.
common.with.older.uncontrolled.systems...The.new.electronic.control.allows.own ers.to.set.operating.r anges.f or.
b
oth.heating.and.cooling.indep endentl y.of.one.another.
Room.Freeze
Protection
When .the.PTAC.senses.that.th e.indoor.room.tempe rature.has.fallen.to.40°.F.the.unit.will.cycle.on.hi gh.fan.and.
the.electric .s tri p.heat.to.raise.the .room.temper ature.to.46°.F.the n.cycle.off.again...This.feature.works.regardless.
of.the.m ode.selected.and.can.be.tu rned.off...The.control.will.also.store.the.Room.Freeze.cycle.in.the.service.code.
m
emory.for.r etrieval.at.a.later.date...This.feature.ensures.that.unoccupied.rooms .do.not.reach.fr eezing.levels.
wher e.damage.can.o ccur.to.plumbing.and.
Random.Compressor
Restart
Multiple.compressors.s tart ing.at.once.can.often.cause.el ectrical.overloads.and.premature.unit.failure...The.random.
restart.delay.e liminates.multiple.units.from.starting.at.on ce.followi ng.a.power.outage.or.initial.power.up...The.
compressor.delay.will.range.from.180.to.240.seconds.
Digital.Defrost
Thermostat
The.Friedrich.PTAC.uses.a.digital.thermostat.to.accur ately.monitor.the.outdoor.coil.conditio
n
s.to.all ow.the.heat.
pump.to.run.whenever.conditions.are .correct...Running.the.PTAC.in.heat.pump.mode.saves.energy.and.reduc es.
operating.costs...The.digital.thermostat.allo ws.ma ximization.of.heat.pum p.run.time.