JOHNSON CONTROLS
8
FORM 201.28-N1
ISSUE DATE: 7/25/2017
2. Upon arrival AT the site, check that the sub sec-
tion is still pressurized with 10-15 PSI of nitrogen,
and then relieve pressure via the relief valve.
3. Once situated, align the main and sub section
flange plates. Remove the flange plates and bolt
the two sections together with gaskets to the cor-
rect torque value as shown in Figures 2 and 3.
4. Pump down the portion of the unit downstream
of the ball valves in the main section (the sub sec-
tion and the last condenser module in the main
section).
Do not open discharge and liquid line ball
valves until there is sufficient water flow
through the evaporator.
LD19423
Flange connection for
discharge and liquid lines
FIGURE 2 -
FLANGE CONNECTION FOR DISCHARGE AND LIQUID LINES (VIEW FROM INSIDE UNIT)
Piping and connecting flanges is done for
each circuit.
LD19424
Flange connection for
discharge and liquid lines
FIGURE 3 -
FLANGE CONNECTION FOR DISCHARGE AND LIQUID LINES (VIEW FROM OUTSIDE UNIT)
