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Responsibilities of Installing
Contractors
For your convenience, a summary of
the contractor responsibilities
typically associated with the chiller
installation process is provided
below. Table 1 further categorizes
these responsibilities by
differentiating between Trane-
supplied and field-supplied and field
installed components.
Refer to the Installation section of
this manual for more detailed
instructions.
• Locate and maintain the loose
parts, i.e. isolators, bulb wells,
temperature sensors, flow sensors
or other factory-ordered field
installed options, for installation as
required. Loose parts are located in
the starter panel on units with
factory-installed unit-mounted
starters or in the motor terminal
box for units with remote-mounted
starters.
• Install unit on a foundation with flat
support surfaces level within 1/16",
and of sufficient strength to
support concentrated loading.
Place manufacturer-supplied
isolation pad assemblies under
unit. (Use spring isolators for upper
floor installations).
• Install unit per applicable Trane
installation manual.
• Complete all water piping and
electrical connections.
CDHF-SVN01B-EN
General Information
Note: Field-piping must be arranged
and supported to avoid stress on the
equipment. It is strongly
recommended that the piping
contractor refrain from piping closer
than 3'-0" minimum to the
equipment. This will allow for proper
fit-up upon arrival of the unit at the
jobsite. Any adjustment that is
necessary can be made to the piping
at that time.
• Where specified, supply and install
valves in water piping upstream
and downstream of evaporator and
condenser water boxes to isolate
shells for maintenance, and to
balance/trim system.
• Supply and install flow switches (or
equivalent devices) in both chilled
water and condenser water piping.
Interlock each switch with proper
pump starter to ensure unit can
only operate when water flow is
established.
• Supply and install taps for
thermometers and pressure
gauges in water piping adjacent to
inlet and outlet connections of both
evaporator and condenser.
• Supply and install drain valves on
each water box.
• Supply and install vent cocks on
each water box.
• Where specified, supply and install
strainers ahead of all pumps and
automatic modulating valves.
• Supply and install pressure relief
piping from pressure-relief rupture
disc to atmosphere.
• If necessary, supply sufficient
Refrigerant-HCFC-22 (maximum of
1 lb. per machine) and dry nitrogen
(8 psig per machine) for pressure
testing under manufacturer's
supervision.
• Start unit under supervision of a
qualified service technician.
• Where specified, supply and
insulate evaporator and any other
portions of machine as required to
prevent sweating under normal
operating conditions.
• Unit-Mounted Starters Only,
remove top of starter panel and cut
access area for line-side wiring;
front left quadrant of top provides
recommended access to starter
lugs.
• Supply and install wire terminal
lugs to starter.
• Unit-Mounted Starters Only,
Supply and install field wiring to
line-side lugs of starter.
• Supply and install a Refrigerant
Monitor per ASHRAE 15
specifications. Reference the
compliance to ASHRAE Standard
15 as shown on the "Model
™
CenTraVac
Checksheet and
Request for Serviceman".
To obtain a copy of "Model
™
CenTraVac
Checksheet and Request
for Serviceman" (Form 1-27.08-6)
order from your local Trane office.
7
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