Trane R Series, Installation Operation & Maintenance

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10 RLC-SVX07A-EN
General Information
the heat exchangers for maintenance, and to balance/trim system.
• If desired, supply and install flow switches in both the chilled water and
condenser water piping; interlock each switch with proper pump starter
to ensure unit can only operate if water flow is established. Chilled water
flow protection is provided by the Unit Controls without the need for a
chilled water flow switch. A flow switch for chilled water is strictly discre-
tionary.
• Furnish and install pressure gauges in inlet and outlet piping of the evapo-
rator and condenser.
• Furnish and install a drain valve to both the evaporator and condenser.
• Supply and install a vent cock to the top of the evaporator and condenser.
• Furnish and install strainers ahead of all pumps and automatic modulating
valves.
• Provide and install field wiring.
• Start unit under supervision of a qualified service technician.
Nameplates
The RTWA/RTUA unit nameplates ( Figure 1 ) are applied to the exterior
surface of the Control Panel door.
A compressor nameplate is located on each compressor. The RTCA unit
nameplate is applied to the side of the control panel.
Unit Nameplate
The unit nameplate provides the following information:
• Unit model and size descriptor.
• Unit serial number.
• Identifies unit electrical requirements.
• Lists correct operating charges of R-22 and refrigerant oil.
• Lists unit test pressures
• Identifies installation, operation and maintenance and service data litera-
ture.
• Lists drawing numbers for unit wiring diagrams.
Compressor Nameplate
The compressor nameplate provides the following information:
• Compressor model number.
• Compressor serial number.
• Compressor electrical characteristics.
• Utilization Range.
• Recommended refrigerant.
ASME Nameplate
The ASME Nameplate is different for the evaporators and condensers (RTWA
only). The evaporator nameplate is located on the tubesheet, on the suction
end. The insulation over the nameplate is intentionally left unglued, for ease in
viewing the nameplate.
Each condensing shell has a nameplate located on the top of the shell,
between the relief valve and the tubesheet. The nameplates are at opposite
ends from each other.