Product Manual WHR-2 69
Optional Features
Hot Gas Bypass
Factory mounted hot gas bypass permits unit operation down to 10% of full load capacity and
includes a hot gas bypass valve, solenoid valve and manual shutoff valve. Hot gas bypass is
provided both refrigerant circuits.
Vibration Isolators
Spring or rubber-in-shear vibration isolators are available as a kit for field installation to reduce
vibration transmission through the unit base.
Gauges
Includes high side and low side refrigerant pressure gauges per refrigerant circuit and oil pressure
gauges per compressor. The gauges are factory mounted on service gauge connections.
Zone Terminal Kit
Complete description in the "Design Advantages" section.
MicroTech Chiller Controller (WHR 040 through 210)
Complete description in the "Design Advantages" section.
Optional Network Master Panel (NMP)
Complete description in the "Design Advantages" section.
Optional Remote Monitoring and Sequencing Panel (RMS)
Complete description in the "Design Advantages" section.
Monitor Software
Complete description in the "Design Advantages" section.
Open Protocol
Complete description in the "Design Advantages" section.
MicroTech BACdrop Gateway
Complete description in the "Design Advantages" section.
Water Flow Switch
A field installed water flow safety switch in the chilled water piping prevents evaporator freeze-up
under low or no flow conditions. Terminals are provided in the unit control center for field hookup
of the water flow safety switch.
Disconnect Switch (WHR 040 through 210)
A field installed non-fused disconnect switch with thru-the-door- handle is available as an option
with single point power supply (requires modifications to the control panel door. The disconnect
switch is properly sized for model and voltage required. The optional thru-the-door handle kit is
required if the disconnect switch is to meet disconnecting provisions of the NEC when a separate
external disconnect is not used.
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