Service manual

Installation Instructions Section 2
2-18
Part No. 80-1206-3
Step 5 Pressure Test and Evacuate The Line Set
and CVD Condensing Unit
Schrader valve core removal tools that allow for removal
and installation of the valve cores without removing
manifold gauge set hoses are recommended to
decrease the evacuation time.
Leave the line set shut off valves closed (front seated).
Pressure test the line sets and CVD condensing unit
with 150 psig of dry nitrogen. Add nitrogen at the line set
shut off valves located at the back of the ice machine.
Complete the pressure test, verify no leaks are present
and remove the nitrogen from the system before
connecting the vacuum pump. Connect a vacuum pump
to both of the line set shut off valves located at the back
of the ice machine head section. Evacuate to 250
microns (or less). To completely evacuate the CVD
condensing unit, continue the evacuation for 30 minutes
after reaching the 500 micron point.
If required, the line set and condensing unit can be
evacuated from the schrader valves located in the CVD
condensing unit. Schrader valve core removal tools (that
allow for putting the cores back in without removing
vacuum pump hoses) must be used if evacuating from
the condensing unit side.
Isolate the vacuum pump from the line set shut off
valves and/or condensing unit access ports prior to
proceeding. Open refrigeration system shut off valves.
The suction line, liquid line and receiver service valves
are closed during shipment and installation.
Step 6 Open The Valves Prior To Starting The Ice
Machine.
A. Slowly backseat (open-turn counterclockwise)
the suction line shut off valve.
B. Slowly backseat (open-turn counterclockwise)
the liquid line shut off valve.
C. Slowly backseat (open-turn counterclockwise)
the receiver service valve.
NOTE: You will not hear refrigerant flow when the valves
are opened. Refrigerant will not flow until the toggle
switch is placed in the ice position and the liquid line
solenoid valve opens.
OPEN SUCTION AND LIQUID LINE SHUT OFF VALVES
Q0600C/Q0800C/Q1000C
OPEN SUCTION AND LIQUID LINE SHUT OFF VALVES
Q1400C/QDUALC
OPEN SUCTION AND LIQUID LINE SHUT OFF VALVES
IB0600C/IB0800C/IB1000C
ALTERNATE CONNECTIONS AT
CONDENSING UNIT SCHRADER VALVES
SV2085
CONNECT
VACUUM PUMP TO
LINE SET SHUT
OFF VALVES
SV1757
USE ALLEN WRENCH TO OPEN
(TURN COUNTERCLOCKWISE)
LIQUID AND SUCTION LINE
SHUT OFF VALVES
SV1762
USE ALLEN WRENCH TO OPEN
(TURN COUNTERCLOCKWISE)
LIQUID AND SUCTION LINE SHUT
OFF VALVES
SV1769C
SV3051
USE ALLEN WRENCH
TO OPEN (TURN
COUNTERCLOCKWISE)
LIQUID AND SUCTION
LINE SHUT OFF
VALVES