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Pre-Installation
ASHRAE Standard 15
Compliance
Trane recommends that indoor CenTraVac™ chiller
installations fully meet or exceed the guidelines of the
current version of ASHRAE® Standard 15, in addition to
any applicable national, state, or local requirements. This
typically includes:
•
A refrigerant monitor or detector that is capable of
monitoring and alarming within the acceptable
exposure level of the refrigerant, and that can actuate
mechanical ventilation.
•
Audible and visual alarms, activated by the refrigerant
monitor, inside the equipment room and outside of
every entrance.
•
The equipment room should be properly vented to the
outdoors, using mechanical ventilation that can be
activated by the refrigerant monitor.
•
The purge discharge and the rupture disk must be
properly piped to the outdoors.
•
If required by local or other codes, a self-contained
breathing apparatus should be available in close
proximity to the equipment room.
For the USA, refer to the latest copy of ASHRAE
Standard 15 for specific guidelines. Trane assumes no
responsibility for any economic, health, or environmental
issues that may result from an equipment room's design or
function.
Unit Shipment
Inspect unit while it is still on the truck for any shipping
damage. The chiller ships shrink-wrapped in a 0.010-in.
(0.254 mm) recyclable film protective covering. Do NOT
remove shrink-wrap for inspection! Inspect for damage to
the shrink-wrap and determine if physical damage has
occurred.
Each chiller ships from the factory as a hermetically
assembled package; it is factory-assembled, -wired, and
-tested. All openings except for the waterbox vent and
drain holes are covered or plugged to prevent
contamination during shipment and
Components," p. 17
shows an illustration of a typical unit
and its components. As soon as the unit arrives at the job
site, inspect it thoroughly for damage and material
shortages. In addition:
1. Verify the hermetic integrity of the unit by checking the
chiller pressure for an indication of holding charge
pressure.
Note: Since there are two refrigerant circuits in
Duplex™ CenTraVac™ chillers, both must be
checked.
2. To prevent damaging moisture from entering the unit
and causing corrosion, each chiller is pressurized with
CDHH-SVX003C-EN
handling."Unit
3 to 5 psig (20.7 to 34.5 kPaG) of dry nitrogen before
shipment.
Note: The holding charge should register approximately
5 psig (34.5 kPaG) at 72°F (22.2°C). Place a gauge
on the access valve provided (indicated by arrow
and circle in the following figure) on the refrigerant
pump discharge line to verify the holding charge.
This access valve is located on the front of the oil
tank, which is at the right rear corner of the chiller. If
the charge has escaped, contact your local Trane
sales office for instructions. For Duplex™, verify
charge on both units.
3. The loose parts box and isolator pads ship on top of the
control panel box.
4. Check the oil sump sight glasses to verify that the sump
was factory-charged with 21 gallons (79.5 L) of oil. The
oil level should be visible to about halfway in the top
sight glass. If no oil level is visible, contact your local
Trane sales office.
Important: If isolation springs are installed, do NOT block
oil tank serviceability.
Figure 5. Refrigerant pump discharge line access
valve
General Information
Regulations regarding waste handling are constantly
changing. To ensure that personnel are in compliance with
the latest local, state, and federal regulations, contact your
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