AAON RSMV-HP, Technical Manual, Page: 4 / 32

OVERVIEW
RSMV-HP Technical Guide 4
Features & Applications
The OE370-26-RSMV-HP Refrigerant System Module for VFD
Heat Pump Compressors (RSMV-HP) (AAON Part No: V61540)
monitors and controls one refrigeration circuit of the HVAC unit.
The module is designed for R410-A refrigerant.
The RSMV-HP is connected to the VCC-X / VCCX2 Controller.
Up to 4 RSMV-HP’s can be connected, depending on the size of the
system. There are 2 E-BUS Expansion Ports which allow the use of
communicating sensors and the E-BUS Modules.
The RSMV-HP provides 6 analog inputs, 4 binary inputs, 4 relays,
and 2 analog outputs. See
Figures 2 & 3, pages 6 & 7 for wiring.
The RSMV-HP Module provides the following:
• Modulates the Compressors to satisfy the Suction
Coil (Saturated) Temperature. The Suction Coil (Satu-
rated) Temperature Setpoint is reset by the VCC-X /
VCCX2 Controller to maintain the Supply Air Tem-
perature during Cooling Mode. During Dehumidifi -
cation Mode, it controls the Compressors to the
Suction (Saturation) Temperature Setpoint.
• Modulates the Condenser Fan to maintain the Head
Pressure Setpoint.
• Modulates the Expansion Valves to maintain the
Superheat Setpoint.
• Provides alarms and safeties for the compressor and
condenser operation.
•
Provides a 2 x 8 LCD character display and 4 buttons
that allow for status of system operation, system
setpoints, system confi gurations, sensors, and alarms.
and to change the module’s address, if necessary.
RSMV-HP Overview