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Summary of Contents for AAON RSMV-HP
- Page 1 RSMV-HP Technical Guide...
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Page 2: Table Of Contents
Toll Free Phone: 866-918-1100 AAON Part Number: V87400 PH: (816) 505-1100 · FAX: (816) 505-1101 · AAON ® is a registered trademark of AAON, Inc., Tulsa, OK. E-mail: mail@wattmaster.com Neither WattMaster Controls, Inc. nor AAON ® assumes any responsibility for errors or omissions in this document. - Page 3 TABLE OF CONTENTS RSMV-HP LCD SCREENS ..................12 RSMV-HP Main Screens Map ....................... 12 RSMV-HP Module Screens ........................13 System Status Screens ......................... 14 Sensor Status Screens .......................... 15 Setpoint Status Screens ........................15 Alarms Screen and Defi nitions ......................16 Alarm History Screen ..........................
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Page 4: Overview
Mode, it controls the Compressors to the The RSMV-HP is connected to the VCC-X / VCCX2 Controller. Suction (Saturation) Temperature Setpoint. Up to 4 RSMV-HP’s can be connected, depending on the size of the • Modulates the Condenser Fan to maintain the Head system. -
Page 5: Module Dimensions
STATUS BLACK BLACK OUTSIDE COIL TEMP / POWF WHITE WHITE NOT USED ANALOG GREEN GREEN OUTPUTS COMP SIGNAL CONDENSER VALVE E-BUS WattMaster Overlay 000071 Rev1C MODBUS E-BUS 0.20 2.05 0.57 4.10 1.49" DEPTH Figure 1: RSMV-HP Dimensions RSMV-HP Technical Guide... -
Page 6: Installation & Wiring
The RSMV-HP is connected to the VCC-X / VCCX2 Controller. at the HVAC unit’s DX evaporator coil suction line. Th is suction Up to 4 RSMV-HP’s can be connected, depending on the size of the line pressure is converted to saturated refrigerant temperature. -
Page 7: Output Wiring
Expansion Valves to maintain a given Superheat Setpoint. Head Pressure Control Leaving Water Temperature Sensor The RSMV-HP can monitor a Head Pressure Transducer and control Condenser Fans to maintain a Head Pressure Setpoint. Th e Th e Leaving Water Temperature Sensor is used to measure the Condenser Fan will be controlled with a 0-10 VDC output signal. -
Page 8: Modulating Compressor
Zone INPUTS & OUTPUTS Zone RSMV-HP Input/Output Map Input/Output Map See Table 1, below for the RSMV-HP Inputs/Outputs. REFRIGERATION SYSTEM MODULE FOR VFD HEAT PUMP COMPRESSORS Analog Inputs Suction Pressure Sensor (SP) Head Pressure Sensor (HP) Coil (Suction Line) Temperature Sensor 1... - Page 9 INPUTS & OUTPUTS RSMV-HP Inputs & Outputs RSMV-HP - Inputs & Outputs BIN2 - Compressor Status 2 When this wet contact input closes, a 24 volt signal to Binary Input +5V VDC Power #2 indicates that Compressor 2 is running. Typically, the source for this is a relay output from the auxiliary contact on the compressor starter.
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Page 10: Sequence Of Operations
Evaporator Coil line for each compressor, and this sensor will be Control Window, then the last compressor to have staged on (VFD connected to an RSMV-HP Module. This temperature will be used or Fixed) will stage off – assuming its Minimum Run Time has been in conjunction with the calculated saturated refrigerant temperature met. -
Page 11: Superheat Control
Operation Control When there is a demand for Heating, the reversing valve changes If using the RSMV-HP with an installed Coil Temperature Switch, the direction and operation of the refrigerant system according to its a Defrost Cycle is available. confi guration. EXV 1 and EXV 2 that are located at the evaporator coils are bypassed with a mechanical check valve during Heating. -
Page 12: Rsmv-Hp Lcd Screens
LCD SCREENS Navigation Keys & Main Screen Map LCD Display Screen & Navigation RSMV-HP Main Screens Map Keys Refer to the following map when navigating through the LCD Main <MENU> Screens. To scroll through the screens, press the button. The LCD display screens and buttons allow you to view status and alarms, and enable force modes. -
Page 13: Rsmv-Hp Module Screens
RSMV-HP LCD SCREENS RSMV-HP Module Screens RSMV-HP Module Screens Refer to the following map when navigating through the RSMV-HP <ENTER> Screens. From the RSMV-HP Screen, press to scroll #OF EXVs through the screens. EV=# RSMV-HP 1072vXXX # OF EXPANSION VALVES... -
Page 14: System Status Screens
RSMV-HP LCD SCREENS System Status Screens System Status Screens <ENTER> From the SYSTEM STATUS Screen, press to scroll through the screens. EXV A1-D1 SYSTEM STATUS EXV A1, B1, C1, D1 (based on board address) EXV VALVE POSITION - 0 to 100 percent... -
Page 15: Sensor Status Screens
RSMV-HP LCD SCREENS Sensor Status Screens & Setpoint Status Screens Sensor Status Screens Refer to the following map when navigating through the Sensor H20 TEMP Status Screens. From the SENSOR STATUS Screen, press XX DEG <ENTER> to scroll through the screens. -
Page 16: Alarms Screen And Defi Nitions
RSMV-HP LCD SCREENS Setpoint Status Screens & Alarms Screen LOW SUCT 95 psi NO ALARMS: This will be shown if there are no current alarms. LOW SUCTION PRESSURE SETPOINT SETTING NO SUCTION PRESSURE SENSOR (SUCT) DETECTED: Default is 95 PSI. -
Page 17: Alarm History Screen
<ENTER> Screen, press to scroll through the history screens. Refer to the following map when navigating through the LCD <ENTER> Protected Screens. From the RSMV-HP Screen, press ALARM <UP> twice to get to the Software Screen. Then hold the button HISTORY for 5 seconds. -
Page 18: Diagnostics Screens
RSMV-HP LCD SCREENS Diagnostic Screens BIN 1 - BIN 4 VFD TEST ON/OFF BINARY INPUTS #1 - #4 Displays the current status of each Binary Input. ADDRESS 1(152) TMP1-TMP 4 VLT X.XX ENTER TO EXIT COIL TEMPERATURE SENSORS 1 - 4 VOLTAGES Displays the current voltage of the Coil Temperature Sensor. -
Page 19: Alarm Counts Screen
RSMV-HP LCD SCREENS Diagnostic Screens AOUT-1 V 0.0-10.0 EPROM: HOLD MODULATING COMPRESSOR FORCE MODE 0.0 to 10.0 = Active Force Mode. Press the <UP> and <DOWN> buttons to increase and decrease DOWN the value. LOAD AOUT-2 V DEFAULTS 1.0-10.0 CONDENSER FAN FORCE MODE 1.0 to 10.0 = Active Force Mode. -
Page 20: Troubleshooting
BIN1 - This green LED will light up when Compressor Status 1 contact is closed. The RSMV-HP’s are equipped with LEDs that can be used to BIN2 - This green LED will light up when Compressor Status 2 verify operation and perform troubleshooting. There are LEDs for switch is closed. -
Page 21: Suction Pressure Transducer Testing
The charts show a temperature range from 20°F to 80°F. For 56.76 161.88 troubleshooting purposes, the DC Voltage readings are also listed with their corresponding temperatures and pressures. Table 3: Coil Pressure/Voltage/Temp for OE275-01 Suction Pressure Transducers - R410A Refrigerant RSMV-HP Technical Guide... -
Page 22: Coil Temperature Sensor Testing
If the voltage is above 4.88 VDC, then the sensor or wiring is “open.” 22.22 11136 2.635 If the voltage is less than 0.05 VDC, then the sensor or wiring is 22.77 10878 2.605 shorted. Table 4: Temperature/Resistance for Type III 10K Ohm Thermistor Sensors RSMV-HP Technical Guide... -
Page 23: Head Pressure Transducer Chart
Head Pressure Transducer Troubleshooting Head Pressure Transducer Troubleshooting If you suspect there is a problem related to head pressure transducer measurements, reference Table 5, below. Head Pressure Transducer Chart Voltage Pressure Voltage Pressure Table 5: Head Pressure Transducer Chart RSMV-HP Technical Guide... -
Page 24: Appendix: System Configuration Using Prism 2
Condenser Signal is wired to AO2 and the Condenser Relay RLY3 is enabled. Refer to the fi gures below for Prism 2 confi guration and Modular Service Tool Screen selection. Figure 6: Prism 2 Condenser Confi guration RSMV & RSMV-HP Condenser Options Confi guration Screen RSM#1-4 CONFIGURATION Condenser Options 1 Cond per 1 RSMV USE <... -
Page 25: One Condenser Per 2 Rsmvs
1st module but not the 2nd module. Refer to the fi gures below for Prism 2 confi guration and Modular Service Tool Screen selection. Figure 7: Prism 2 Condenser Confi guration RSMV & RSMV-HP Condenser Options Confi guration Screen RSM#1-4 CONFIGURATION Condenser Options 1 Cond per 2 RSMVs USE <... -
Page 26: One Condenser For 3 Rsmvs
2nd & 3rd modules. Refer to the fi gures below for Prism 2 confi guration and Modular Service Tool Screen selection. Figure 8: Prism 2 Condenser Confi guration RSMV & RSMV-HP Condenser Options Confi guration Screen RSM#1-4 CONFIGURATION... -
Page 27: One Condenser For 4 Rsmvs
1st module but not the 2nd, 3rd, or 4th modules. Refer to the fi gures below for Prism 2 confi guration and Modular Service Tool Screen selection. Figure 9: Prism 2 Condenser Confi guration RSMV & RSMV-HP Condenser Options Confi guration Screen RSM#1-4 CONFIGURATION Condenser Options 1 Cond for 4 RSMVs USE <... -
Page 28: System Confi Guration Options
Select this confi guration if the RSMV only has one Compressor wired to it. If there are two Compressors, leave this selection blank. This configuration only applies when using the RSMV-HP. Select this confi guration when Expansion Valve 3 is wired and Single Evaporator Coil Confi... - Page 29 NOTES RSMV-HP Technical Guide...
- Page 30 NOTES RSMV-HP Technical Guide...
- Page 31 NOTES RSMV-HP Technical Guide...
- Page 32 Ph: (918) 583-2266 • Fax: (918) 583-6094 AAON Part No.: V87400 ® WM Form: AA-RSMVHP-TGD-01C Printed in the USA • Copyright April 2018 • All Rights Reserved AAON/WattMaster Controls, Inc. • 8500 NW River Park Drive • Parkville, MO • 64152...
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