Robinair 34288 Recovery, Recycling, Recharging Unit - Manual (Page 12)

10
Recharge the A/C System
1 . .Press .CHARGE . Open .the .appropriate .panel .valve(s), .
depending .on .where .the .system .should .be .charged .– .
high-side, .low-side, .or .both .
2 . .Press .CHARGE again .to .change .the .units .of .
measure . .Accept .the .default .weight .by .pressing .
START / YES, .or .use .the .arrow .keys .to .scroll .to .the .
correct .amount, .and .press .START / YES .
3 . .The .display .reads
CHARGE .IN .PROGRESS ./ .DO .NOT .DISTURB
X .XX .LBS . .(X .XX .KG)
. Moving .or .bumping .the .unit .at .this .point .may .result .
in .an .incorrect .reading .
Note:
• During a charge cycle, if the unit fails to transfer
refrigerant due to low tank pressure, the charge
process is automatically interrupted and the unit
operates in a mode to build tank pressure. Once
tank pressure is sufficient, the unit automatically
completes the charge.
• When the charge cycle gets close to the weight
entered in Step 2, the unit slows down. It’ll charge,
settle, charge again, settle, etc.
4 .When .the .charge .is .complete, .the .display .reads
CHARGED .XXX .LBS .(KG)
PRESS .START .TO .EQUALIZE .HOSES
. The .user .must .equalize .pressure .in .the .service .hoses .
to .ensure .all .liquid .refrigerant .trapped .in .the .hoses .is .
transferred .to .the .vehicle .A/C .system .for .an .accurate .
charge . .Press .START / YES .to .equalize .hoses .
5 . .Close .the .high-side .coupler .valve . .The .display .reads
DISCONNECT .HS .HOSE
OPEN .PANEL .VALVES
AND .START .A/C .MAX
START .TO .CONTINUE
. The .high-side .hose .must .be .removed .from .the .
vehicle, .and .the low-side hose must stay
connected to the vehicle .with .the .low-side .
coupler .open .
6 . .Open .both .panel .valves .
Operating Instructions
Operating Tips
• After selecting the CHARGE function and
entering a desired weight, if the weight
entered will leave less than 2 lbs. (.91 kg) of
refrigerant in the internal tank after charge,
the charge function will not start. The display
reads
INSUFFICIENT .REFRIG .
PRESS .ANY .KEY .TO .EXIT
Refer to the Maintenance section of this
manual for instructions to Manually Refill the
Internal Storage Vessel (ISV).