Robinair 17801B Recovery, Recycling, Recharging Unit - Manual (Page 19)

Model 17800B / 17801B Recovery/Recycling/Recharging Unit
17
ENGLISH
If.the.unit.beeps.continuously,.the.transfer.of.refrigerant.has.stopped.before.the.
charging.procedure.was.completed.(see.Correcting An Incomplete Transfer).
. 8.. Close.the.high-.and.low-side.valves.on.the.control.panel,.and.start.the.A/C-R.
system..Compare.the.gauge.readings.to.the.manufacturer’s.specifications.
. 9.. Turn.off.the.A/C-R.system,.and.disconnect.the.high-side.hose.from.it.
.10.. Start.the.A/C-R.system,.and.open.both.the.high-.and.low-side.valves..This.
pulls.the.portion.of.the.programmed.charge.that.is.trapped.in.the.hoses.into.
the.low.side.of.the.A/C-R.system.
.11.. At.the.lowest.recommended.operating.pressure,.close.the.low-side.valve.and.
turn.off.the.A/C-R.system..Disconnect.the.low-side.hose.from.the.system.
.12.. Close.the.high-side.valve,.and.turn.off.the. MAIN POWER.switch.
CORRECTING AN INCOMPLETE TRANSFER
If.the.scale.value.does.not.change.for.30.seconds,.the.unit.beeps.continuously.to.
indicate.that.the.transfer.of.refrigerant.was.not.completed..There.are.two.reasons.
for.an.incomplete.transfer.of.refrigerant:
•. The.pressure.in.the.A/C-R.system.is.equal.to.the.pressure.in.the.tank..The.unit.
produces.an.audible.signal.and.shows.the.weight.remaining.to.complete.the.
transfer.
. 1.. Close.the.high-side.valve.on.the.control.panel.
. 2.. Disconnect.the.high-side.hose.from.the.A/C-R.system.
. 3.. Continue.with.Step.9.in.Charging Procedures.
•. The.display.shows.the.message.“CHECK.REFRIGERANT”.because.there.is.not.
enough.refrigerant.in.the.tank.
. 1.. Press. HOLD/CONT.to.interrupt.the.transfer.
. 2.. Verify.both.valves.on.the.tank.are.closed,.then.disconnect.and.remove.the.
tank.from.the.unit..Replace.it.with.a.tank.containing.additional.refrigerant.
. 3.. Press. HOLD/CONT.again.to.resume.the.transfer.
Operating Instructions