Desk Control Terminals; Energy Management - Friedrich PTAC Manual De Instalación Y Funcionamiento

Desk Control Terminals

The.Friedrich.PD.model.PTAC.has.built-in.provisions.for.connection.to.an.
external.switch.to.control.power.to.the.unit..The.switch.can.be.a.central.
desk.control.system.or.even.a.normally.open.door.switch.
For.desk.control.operation.connect.one.side.of.the.switch.to.the.D1.terminal.
and.the.other.to.the.D2.terminal.(See.Figure.31,.Page.23)..Whenever.the.
switch.closes.the.unit.operation.will.stop.
NOTE:.
The.desk.control.system.and.switches.must.be.field.supplied.

Energy Management

Sometimes.known.as.Front.Desk.Control,.an.input.is.provided.so.that.the.
unit.can.be.manually.disabled.from.a.remote.location...If.the.unit.detects.
24Vac. on. this. input,. it. will. automatically. turn. itself. off.. . If. no. voltage. is.
detected.on.the.input.,.the.unit.will.run.normally.
NOTE:.. It.is.the.installer's.responsibility.to.ensure.that.all.control.wiring.
connections. are. made. in. accordance. with. the. installation.
instructions.. Improper. connection. of. the. thermostat. control.
wiring. and/or. tampering. with. the. unit's. internal. wiring. can.
void. the. equipment. warranty.. Other. manufacturer's. PTACs.
and.even.older.Friedrich.models.may.have.different.control.
wire.connections...Questions.concerning.proper.connections.
to.the.unit.should.be.directed.to.Friedrich.
26
WARNING
Electrical Shock Hazard
Turn off electrical power before service
or installation.
ALL electrical connections and wiring
MUST be installed by a qualified
electrician and conform to the National
Code and all local codes which have
jurisdiction.
Improper connection of the thermostat
control wiring and/or tampering with the
units internal wiring may result in property
damage, personal injury or death.