
82
VFD Controlled Condenser Fan Startup
With Customer Provided Unit Controls the
VFD’s are factory provided and factory
programmed. VFD’s receives input from
pressure transducers on each refrigerant
circuit and vary the fan speed based on the
pressure inputs to maintain a discharge
(head) pressure. Standard pressure setpoint
is 340 psi for standard air-cooled systems
and 400 psi for modulating hot gas reheat
air-cooled systems.
With WattMaster Unit Controls the
WattMaster Condenser Head Pressure
Module is used to maintain a discharge
pressure. The VFD should be factory wired
to the outputs of the WattMaster Condenser
Head Pressure Module. See WattMaster
literature for additional information.
(http://www.orioncontrols.com).
With JENEsys Unit Controls the controller
directly modulates the VFD to maintain a
discharge pressure.
Summary of Contents for RN Series
Page 2: ......
Page 32: ...32 Figure 5 RN Series 6 8 and 10 ton Unit Gasket Locations...
Page 33: ...33 Figure 6 RN Series 9 and 11 15 ton Unit Gasket Locations...
Page 34: ...34 Figure 7 RN Series 16 25 and 30 ton Unit Gasket Locations...
Page 35: ...35 Figure 8 RN Series 26 31 50 60 and 70 ton Unit Gasket Locations...
Page 42: ...42 Figure 19 Seismic Rigid Mount Curb...
Page 80: ...80 Gas Heater Instructions Figure 43 Gas Heater Instructions...
Page 113: ......
Page 114: ......
Page 115: ......