Imperial Tools 718-CC - Manual (Page 2)

LOW SIDE PORT
(SUCTION)
COMP.
HIGH SIDE PORT
(DISCHARGE)
RED HANDLE
(HIGH SIDE)
RED HOSE
(HIGH SIDE)
REFRIGERANT CONTROL VALVE
(YELLOW HANDLE)
BLUE HOSE
(LOW SIDE)
FILTERED HOSE
CONNECTOR
3 PLACES
REF.
VAC.
PUMP
YELLOW HOSE
BLUE HANDLE
(LOW SIDE)
VACUUM
VAPOR CHARGE
LIQUID HI SIDE
LOW SIDE
LIQUID CHARGE
NOTE:
*Connection should be made to service valve or access fitting.
GAUGE RECALIBRATION:
Remove lens cover. Turn recalibrator
screw in the opposite direction to
desired movement of pointer until
gauge reads “0”. Replace lens.
No more than 1/2 Turn.
*
*
Patented Metering
Device Engaged-
Converts Liquid to Vapor
OBSERVE OPERATING PRESSURE:
1. Close red “HI” and blue “LO” side valves,
finger tight.
2. Connect blue low side hose to system’s
low side service port and the red high side
hose to the system’s high side service port.
3. Once the hoses have been connected, the
system pressure will be displayed on the gauge
face.
NOTE: A system that has service valves; the
valves should be cracked open after
connection. Hoses must be purged.
RECOVERING REFRIGERANT:
1. Turn yellow “REF” valve fully counter-clockwise,
finger tight, to the “VACUUM, VAPOR, LIQUID
HI SIDE” position.
2. Close the blue “LO” side valve and red “HI”
side valves, finger tight.
3 Connect blue low side hose to system’s low side
service port. Connect red high side hose to the
system’s high side service port.
4. Follow the instructions provided with the
recovery unit for proper recovery of refrigerant
from the system.
NOTE: Typically, the yellow hose is
connected to the inlet of the recovery unit.
EVACUATE (VACUUM):
1. Remove all refrigerant from system using a
refrigerant recovery system.
2. Turn yellow “REF” valve fully counter-clockwise,
finger tight, to the “VACUUM, VAPOR, LIQUID
HI SIDE” position.
3. Connect blue low side hose to system’s low
side service port. Connect red high side
hose to the system’s high side service port.
4. Connect the center hose (yellow) to the
vacuum pump.
5. Open red “HI” and blue “LO” side valves.
6. Start vacuum pump.
7. Evacuate system according to manufacturers
specifications then close red “HI” side and blue
“LO” side valves and turn off vacuum pump.
CHARGING:
1. Disconnect the yellow hose from vacuum pump
and connect to refrigerant tank.
2. Slightly open the refrigerant supply valve on the
tank. Purge air from the yellow hose at the
manifold by loosening the yellow hose fitting
connection. When complete, tighten hose
connection and turn off refrigerant supply valve.
3 System can now be charged according to
the manufacturers specification.
CHARGING OPTIONS:
Liquid High Side Charging: To draw liquid from
tank and charge into system high side. Turn the
yellow “REF” valve fully counter-clockwise to the
“VACUUM, VAPOR, LIQUID HI SIDE” position - finger
tight. Close the blue “LO” side valve - finger tight.
continued on back page
It is unlawful to discharge or exhaust refrigerants into the atmosphere. Imperial strongly
recommends using recovery or recycling equipment for proper disposal of refrigerants.