Unitary products group EF-10, Инструкция по установке

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035-18550-001-A-0902
Unitary Products Group 15
EVACUATING AND CHARGING
With the liquid and suction line service valves closed,
connect a vacuum pump through a charging manifold
to the access ports on both the liquid and suction line
service valves.
NOTE:
The vacuum pump connection should be short
and no smaller than 3/8" O.D.
The refrigerant lines and the indoor coil must now be
evacuated to 500 Microns without disturbing the
charge in the condenser coil or the compressor.
After proper evacuation and dehydration, charge refrig-
erant through the access port on the liquid line service
valve allowing the vacuum to draw in as much refriger-
ant as possible.
To continue charging refrigerant in the cooling mode,
open the liquid and the vapor line service valves fully.
Turn the stem of the liquid service valve clockwise 1/4
turn to open its access port for reading pressure.
Start the compressor (after 8 hours of crankcase heat),
turn the stem of the vapor line service valve clockwise
1/4 turn to open its service port and continue to charge
refrigerant gas through this suction access port until
you meet the conditions shown on the charging curve,
Figure 9.
Open the liquid and vapor line service valves fully to
close their access ports after the system has been
charged.
FIGURE 7 - EXTENDING THE SERVICE PORTS
COPPER
2 SCREWS
CORNER
POST
SERVICE PORTS IN SHIPPING POSITION
UNIT WALL
SIDE VIEW
COPPER
TUBE
UNIT
WALL
COPPER
2 SCREWS
CORNER
POST
TOP VIEW
UNIT
WALL
LOOSEN
SCREWS
SIDE VIEW
(AS SHIPPED)
PUSH SERVICE
PORTS THROUGH
CORNER POST
TIGHTEN SCREWS
SIDE VIEW
SERVICE PORTS
EXTENDED
( )
SERVICE PORTS
EXTENDED
( )
SERVICE PORTS IN INSTALLED POSITION
Do not charge liquid refrigerant through the
compressor suction connection.
Do not attempt to start the compressor without
at least 8 hours of crankcase heat or compres-
sor damage will occur.