IM 738-2
29
Mechanical Installation:
Reassembly of Split Units
Figure 37. RPS factory split at supply fan section
Reassembly of Split Units
Although RoofPak units typically ship from the factory as
complete units, they may be split at the factory in one of three
possible configurations.
1
The RFS air handler section and RCS condenser section
ship as two separate units, each with its own power supply
and unit nameplate. This configuration is ordered when the
condenser is intended to remain remote from the air handler
because of space or structural constraints.
On all units except the RFS with end discharge, refrigerant
piping is stubbed out the exterior of the cabinet for
convenient field piping between the RCS and RFS units,
and all necessary refrigeration components are provided.
Detailed instructions are on pages 39 to 43.
2
The RPS/RDT unit factory split at the condenser ships as
an air handler section and a condenser section that is
recoupled together on the roof. This configuration is
ordered if a packaged RPS unit is desired, but cannot go to
the job site because of shipping length or weight
limitations. A single nameplate is attached to the air
handler section and power is fed to both sections through
the main control box, as in a non-split RPS/RDT unit.
Detailed instructions are on pages 33 to 38.
All interconnecting piping and refrigeration components
are provided so that when the sections are coupled together
only field-provided couplings are required to connect the
piping.
3
The RPS unit factory split at the fan ships as two pieces,
split at the supply fan bulkhead, to recouple together on the
roof. Like the RPS/RDT unit factory split at the condenser,
this configuration is ordered if shipping length or weight
limitation prevents a packaged RPS/RDT from being
ordered. Splitting at the fan has the advantage of leaving all
factory refrigerant piping intact so field evacuation and
charging is not required. Detailed instructions are on pages
30 to 32.
A single nameplate is attached to the air handler section
and power is fed to both sections through the main control
box, as in a non-split RPS/RDT unit.
045C–090C: B (Min.) = 72" (1829 mm)
105C–115C: B (Min.) = 96" (2438 mm)
125C–135C: B (Min.) = 120" (3048 mm)
Summary of Contents for RDT-135c
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