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14

      RSMD-CM Technical Guide

LCD SCREENS

Main Screens Map

Main Screens Map

Refer to the following map when navigating through the LCD 

Main Screens. To scroll through the screens, press the 

<MENU>

 

button.

 RSMD

1067vxxx

Press 

 to scroll through REFRIG MODULE screens.

Press 

 to go to SYSTEM STATUS screens.

SYSTEM
STATUS 

Press 

 to scroll through SYSTEM STATUS screens.

Press 

 to go to SENSOR STATUS screens.

SENSOR 
STATUS 

Press 

 to scroll through SENSOR STATUS screens.

Press 

 to go to ALARMS screens.

ALARMS

Press 

 to scroll through ALARMS screens.

Press 

 to go to ALARM HISTORY screens.

ALARM

HISTORY

Press 

 to scroll through ALARM HISTORY screens.

Press 

 to go to SETPOINT STATUS screens.

SETPOINT

STATUS

Press 

 to scroll through SETPOINT STATUS screens.

Содержание RSMD-CM

Страница 1: ...RSMD CM Technical Guide ...

Страница 2: ...ors or omissions in this document This document is subject to change without notice RSMD CM REVISION LOG REVISION AND DATE CHANGE Rev A December 22 2021 First edition www aaon com RSMD CM PARTS REFERENCE PART DESCRIPTION PART NUMBER Refrigerant System Module for Digital Compressors with Condenser Fans with Microchannel Coils RSMD CM ASM06709 VCCX2 Controller ASM01698 Prism 2 ASM02533 IP Module Kit...

Страница 3: ...tatus Screens 16 Sensor Status Screens 17 Setpoint Status Screens 18 Alarms Screens 19 Alarms History Screens and Protected Screens Map 21 Configuration Screens 22 Diagnostic Screens 23 Alarm Counts and Address Screens 25 TROUBLESHOOTING 26 LED Diagnostics 26 Suction Pressure Transducer Testing 27 CopelandTM Discharge Thermistor Temperature Sensor Testing 28 Temperature Sensor Testing 29 Head Pres...

Страница 4: ...ng 9 Figure 4 LCD Display and Navigation Keys 13 Figure 5 RSMD CM LED Locations 26 Figure 6 Two Condenser Operation Default 31 Figure 7 Prism 2 Condenser Configuration Two Condenser Operations Default 32 Figure 8 Single Condenser Per Module 33 Figure 9 Prism 2 Condenser Configuration Single Condenser Per Module 34 Figure 10 Single Condenser Per Two Modules 35 Figure 11 Prism 2 Condenser Configurat...

Страница 5: ...rs and E BUS modules The RSMD CM Module provides the following Modulates the compressors to satisfy the Suction Coil Saturation Temperature The Suction Coil Saturation Temperature Setpoint is reset by the VCCX2 Controller to maintain the SupplyAir Temperature during Cooling Mode During Dehumidification Mode it controls the compressors to directly maintain the Suction Saturation Temperature Setpoin...

Страница 6: ...28 R31 R32 R35 R36 R39 R40 R44 R43 C43 R49 R48 R56 R54 1002 1002 1002 1002 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 SERIAL ALARM UP DOWN ENTER MENU AAON P N ASM06709 24 VAC GND RELAY CONTACT RATING IS 1 AMP MAX 24 VAC CONDENSER 1 COMP 1 COMP 2 ANALOG OUT REVERSING VALVE COMMON RELAY OUTPUT TERMINALS LABEL P N G102070 COND 1 COND 2 GND 24 VAC POWER ONLY WARNIN...

Страница 7: ...24 VAC wiring should be 18 gauge 4 Minimum wire size for all sensors should be 24 gauge Some sensors require two conductor wire and some require three or four conductor wire 5 Minimum wire size for 24 VAC thermostat wiring should be 22 gauge 6 Be sure that all wiring connections are properly inserted and tightened into the terminal blocks Do not allow wire strands to stick out and touch adjoining ...

Страница 8: ...sors to maintain a given Suction Coil Saturated Temperature Setpoint In Cooling Mode the VCCX2 resets the Suction Coil Saturated Temperature Setpoint to maintain a given Supply Air Temperature Setpoint In Dehumidification Mode the Suction Coil Saturated Temperature Setpoint is a user configurable setpoint that can be reset based on indoor humidity levels Figure 2 RSMD CM Inputs Wiring GND 18 30 VA...

Страница 9: ...al Compressor 1 Unloader Digital Compressor 2 Signal 1 Condenser Condenser Signal 2 WSE Bypass Valve Actuator Wires to VCCX2 Loop Communications connector when used on a split system GND GND COM COM GND TEMP3 TEMP2 TEMP1 TB9 GND 5V D12 BIN4 D11 BIN3 D10 BIN2 D9 BIN1 TB12 GND HP 2 5V TB8 GND J1 C C SP 2 5V TB6 GND HP 1 5V TB3 POWER COMM ALARM STATU GND SP 1 5V TB4 YS102632 REV 1 R30 4751 R1 R34 475...

Страница 10: ...used to properly control the compressors to maintain a given Suction Coil Saturated Temperature Setpoint In Cooling Mode the VCCX2 resets the Suction Coil Saturated Temperature Setpoint to maintain a given Supply Air Temperature Setpoint In Dehumidification Mode the Suction Coil Saturated Temperature Setpoint is a user configurable setpoint that can be reset based on indoor humidity levels 5V VDC ...

Страница 11: ... for the Water Proof of Flow Switch If the Water Proof of Flow Switch contact opens while the condenser valve is operating the controller will react to protect the system depending on the current mode of operation BI4 Emergency Shutdown This wet contact input is used to initiate shutdown of the HVAC unit when a normally closed Smoke Detector by others Firestat by others or other shutdown condition...

Страница 12: ... the RSMD CM will modulate the Copeland Digital Scroll Compressor to maintain the Evaporator Coil Suction Saturation Temperature Setpoint and activate the compressors as necessary On units that have one digital and one fixed capacity compressor if the fixed capacity compressor is activated the Copeland Digital Scroll Compressor will only be allowed to modulate within the range of 70 100 in order t...

Страница 13: ...or descriptions Navigation Key Key Function MENU Use the MENU key to move through screens within Main Menu categories and return to the Main Menu while at other screens UP Use this key to adjust setpoints and change configurations DOWN Use this key to adjust setpoints and change configurations ENTER Use the ENTER key to navigate through the Main Menu Screen categories ALARM UP DOWN ENTER MENU Figu...

Страница 14: ... to go to SYSTEM STATUS screens SYSTEM STATUS Press to scroll through SYSTEM STATUS screens Press to go to SENSOR STATUS screens SENSOR STATUS Press to scroll through SENSOR STATUS screens Press to go to ALARMS screens ALARMS Press to scroll through ALARMS screens Press to go to ALARM HISTORY screens ALARM HISTORY Press to scroll through ALARM HISTORY screens Press to go to SETPOINT STATUS screens...

Страница 15: ...S COMMUNICATION DIAGNOSTICS Number of COMM packets received SOFTWARE 1067vXXX CURRENT SOFTWARE VERSION You can access the protected screens from this screen by holding the UP button for five seconds BOARD EBUS ADDRESS CURRENT BOARD ADDRESS COMP CONFIGURED OF COMPRESSORS CONFIGURED COND CONFIGURED OF CONDENSERS CONFIGURED COMP A1 B1 FIXED OR DIG COMPRESSOR A1 or B1 FIXED or DIGITAL COMP A2 B2 FIXED...

Страница 16: ...mpressor is off MODULATING PERCENTAGE 0 100 COMP A2 B2 ON OFF COMPRESSOR A2 B2 based on board address ON OFF FORCED OFF Compressor is off ON Compressor is on COND 1 FAN OFF MODULATING CONDENSER FAN 1 OFF MOD POSITION OFF Condenser is off MODULATING PERCENTAGE 0 100 COND 2 FAN OFF MODULATING CONDENSER FAN 2 OFF MOD POSITION OFF Condenser is off MODULATING PERCENTAGE 0 100 BYPS VLV CLOSED OR VALVE W...

Страница 17: ...ROM INPUT SUCTION 2 XXX PSI SUCTION PRESSURE 2 READING FROM INPUT HEAD PR2 XXX PSI HEAD PRESSURE 2 READING FROM INPUT CALC CT1 XX DEG CALCULATED COIL TEMPERATURE 1 FROM SUCTION PRESSURE 1 INPUT CALC CT2 XX DEG CALCULATED COIL TEMPERATURE 2 FROM SUCTION PRESSURE 2 INPUT COMPTMP1 XX DEG COMPRESSOR TEMPERATURE 1 READING FROM HEAD PRESSURE 1 INPUT COMPTMP2 XX DEG COMPRESSOR TEMPERATURE 2 READING FROM ...

Страница 18: ...E SETPOINT STATUS Valid range is 275 to 475 psi Default is 340 psi IF CONFIGURED FOR FAN CYCLE THE FOLLOWING TWO SCREENS WILL DISPLAY FAN ON XX PSI HEAD PRESSURE READING WHEN FAN CYCLE IS ON FAN OFF XX PSI HEAD PRESSURE READING WHEN FAN CYCLE IS OFF IF CONFIGURED WATER SOURCE HEAT PUMP THE FOLLOWING THREE SCREENS WILL DISPLAY GLYCOL GLYCOL PERCENTAGE STATUS LOW SUCT 95 PSI LOW SUCTION PRESSURE SET...

Страница 19: ...ressure 1 falls below the Low Suction Pressure Setpoint for 20 seconds The system will try to protect itself by lowering compressor modulation percentage LOW SUCTION PRESSURE 2 SP2 DETECTED This alarm will occur if Suction Pressure 2 falls below the Low Suction Pressure Setpoint for 20 seconds The system will try to protect itself by lowering compressor modulation percentage COMPRESSOR 1 COMP1 HPS...

Страница 20: ...ormal operation If the Suction Pressure falls below the Unsafe Suction Setpoint for five seconds that circuit s compressor will be locked out Power will need to be cycled to restart the unit If the Leaving Water Temperature falls below the setpoint the last compressor will be locked out until the Leaving Water Temperature rises 6ºF above setpoint The Leaving Water Temperature remains below the set...

Страница 21: ...ARM HISTORYScreen displays past alarms if any and how long ago the last of each type occurred From the ALARM HISTORY Screen press ENTER to scroll through the history screens The Alarm will appear on the first line and the second line will display when each alarm last occurred As a result the alarms listed on the ALARMS screen will be abbreviated as follows in order of the way they are listed in th...

Страница 22: ...iguration Screens Refer to the following map when navigating through the Configuration Screens From the CONFIG Screen press ENTER to scroll through the screens CONFIG COND FAN LOCKED UNLOCKED CONDENSER FAN LOCKED OR UNLOCKED LOCK POS 100 CONDENSER FAN LOCKED POSITION ...

Страница 23: ... VOLTAGE Displays the current voltage of the Suction Pressure Transducer 1 HP 1 VLT X XX HEAD PRESSURE TRANSDUCER 1 VOLTAGE Displays the current voltage of the Head Pressure Transducer 1 SP 2 VLT X XX SUCTION PRESSURE TRANSDUCER 2 VOLTAGE Displays the current voltage of the Suction Pressure Transducer 2 HP 2 VLT X XX HEAD PRESSURE TRANSDUCER 2 VOLTAGE Displays the current voltage of the Head Press...

Страница 24: ...E MODE Press the UP or DOWN buttons to select ON or OFF for each relay TRIAC 1 ON OFF TRIAC 1 Displays the current status of Digital Compressor 1 Values are ON OFF TRIAC 2 ON OFF TRIAC 2 Displays the current status of Digital Compressor 2 Values are ON OFF AOUT 1 V 0 0 10 0 vdc CONDENSER SIGNAL 1 FORCE 0 0 to 10 0 Active Force Mode Press the UP or DOWN buttons to increase and decrease the value AO...

Страница 25: ...The only way to clear these alarm counts is by using Prism 2 and selecting Select Alarms to Delete from the ALARM button menu See Alarm Polling in the Prism 2 Technical Guide for more information ADDRESS 1 152 CURRENT BOARD ADDRESS Configure the address according to which refrigerant circuit this module represents 1 A 2 B 3 C 4 D Number in parentheses is E BUS address Module 1 s address is 152 Mod...

Страница 26: ...This green LED will light up when the Outdoor Coil Temperature switch is closed BI4 This green LED will light up when the Emergency Shutdown switch is closed Relay LEDs RLY1 RLY5 These green LEDs will light up when the relays are enabled and will stay lit as long as they are active Digital Compressor LEDs COMP1 This green LED will light up when Digital Compressor 1 is unloading COMP2 This green LE...

Страница 27: ... chart depending on the refrigerant you are using If the temperature voltage or pressure voltage readings do not align closely with the chart your Suction Pressure Transducer is probably defective and will need to be replaced See the Suction Pressure Transducer Pressure Temperature and Voltage Chart for R410 A Refrigerant testing The chart shows a temperature range from 20 F to 80 F For troublesho...

Страница 28: ...e sensor input terminal being investigated Discharge Thermistor Temperature Resistance Temperature ºF Temperature ºC Resistance K Ohms Voltage Input VDC Temperature ºF Temperature ºC Resistance Ohms Voltage Input VDC 40 40 2889 60 4 98 167 75 12 73 2 80 31 35 2087 22 4 97 176 80 10 79 2 59 22 30 1522 20 4 96 185 85 9 20 2 39 13 25 1121 44 4 95 194 90 7 87 2 19 4 20 834 72 4 94 203 95 6 77 2 01 5 1...

Страница 29: ...s Temperature Resistance Voltage for Type III 10 K Ohm Thermistor Sensors Temperature ºF Temperature ºC Resistance Ohms Voltage Input VDC Temperature ºF Temperature ºC Resistance Ohms Voltage Input VDC 10 23 3 93333 4 51 72 22 2 11136 2 635 5 20 6 80531 4 45 73 22 8 10878 2 605 0 17 8 69822 4 37 74 23 3 10625 2 576 5 15 60552 4 29 75 23 9 10398 2 549 10 12 2 52500 4 2 76 24 4 10158 2 52 15 9 4 459...

Страница 30: ...at the HP terminal See Table 7 this page Head Pressure Transducer Chart Voltage Pressure Voltage Pressure 0 5 0 2 6 350 0 6 17 2 7 367 0 7 33 2 8 384 0 8 50 2 9 400 0 9 67 3 0 417 1 0 83 3 1 434 1 1 100 3 2 450 1 2 117 3 3 467 1 3 133 3 4 484 1 4 150 3 5 500 1 5 167 3 6 517 1 6 183 3 7 534 1 7 200 3 8 550 1 8 217 3 9 567 1 9 233 4 0 584 2 0 250 4 1 600 2 1 267 4 2 617 2 2 283 4 3 634 2 3 300 4 4 6...

Страница 31: ...SA 5A30VDC CHINA 10A250VAC R14 R27 R28 R31 R32 R35 R36 R39 R40 R44 R43 C43 R49 R48 R56 R54 1002 1002 1002 1002 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 SERIAL ALARM UP DOWN ENTER MENU AAON P N ASM06709 24 VAC GND RELAY CONTACT RATING IS 1 AMP MAX 24 VAC CONDENSER 1 COMP 1 COMP 2 ANALOG OUT REVERSING VALVE COMMON RELAY OUTPUT TERMINALS LABEL P N G102070 COND 1...

Страница 32: ...Two Condensers Per Module Default Figure 7 Prism 2 Condenser Configuration Two Condenser Operations Default HVAC Unit Application The default Two Condensers Per Module configuration is used with the following HVAC units B BOX C BOX 16 20 Ton D BOX 26 40 Ton ...

Страница 33: ...VDC CHINA 10A250VAC R14 R27 R28 R31 R32 R35 R36 R39 R40 R44 R43 C43 R49 R48 R56 R54 1002 1002 1002 1002 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 SERIAL ALARM UP DOWN ENTER MENU AAON P N ASM06709 24 VAC GND RELAY CONTACT RATING IS 1 AMP MAX 24 VAC CONDENSER 1 COMP 1 COMP 2 ANALOG OUT REVERSING VALVE COMMON RELAY OUTPUT TERMINALS LABEL P N G102070 COND 1 COND 2...

Страница 34: ...er Module Figure 9 Prism 2 Condenser Configuration Single Condenser Per Module HVAC Unit Application The Single Condenser Per Module configuration is used with the following HVAC units B BOX Air to Air Heat Pump B BOX WSHP C BOX 25 30 Ton C BOX Air to Air Heat Pump C BOX WSHP ...

Страница 35: ...V SA 5A30VDC CHINA 10A250VAC R14 R27 R28 R31 R32 R35 R36 R39 R40 R44 R43 C43 R49 R48 R56 R54 1002 1002 1002 1002 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 SERIAL ALARM UP DOWN ENTER MENU AAON P N ASM06709 24 VAC GND RELAY CONTACT RATING IS 1 AMP MAX 24 VAC CONDENSER 1 COMP 1 COMP 2 ANALOG OUT REVERSING VALVE COMMON RELAY OUTPUT TERMINALS LABEL P N G102070 COND...

Страница 36: ...OPTIONS Single Condenser Per Two Modules Figure 11 Prism 2 Condenser Configuration Single Condenser Per Two Modules HVAC Unit Application The Single Condenser Per Two Modules configuration is used with the following HVAC units RLA BOX RLB BOX RLE BOX ...

Страница 37: ...F 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 SERIAL ALARM UP DOWN ENTER MENU AAON P N ASM06709 24 VAC GND RELAY CONTACT RATING IS 1 AMP MAX 24 VAC CONDENSER 1 COMP 1 COMP 2 ANALOG OUT REVERSING VALVE COMMON RELAY OUTPUT TERMINALS LABEL P N G102070 COND 1 COND 2 GND 24 VAC POWER ONLY WARNING POLARITY MUST BE OBSERVED OR THE CONTROLLER WILL BE DAMAGED CONDENSER 2 HEAD PRES 1 5...

Страница 38: ... OPTIONS Single Condenser for Three Modules Figure 13 Prism 2 Condenser Configuration Single Condenser for Three Modules HVAC Unit Application The Single Condenser for Three Modules configuration is used with the following HVAC units RLC BOX RLD BOX ...

Страница 39: ...TU GND SP 1 5V TB4 YS102632 REV 1 R30 4751 R1 R34 4751 R2 4751 R38 R3 4751 R42 R4 4751 R58 R5 COM V6 TB7 COMP1 24VAC P6 COMP2 TB11 AOUT 1 AOUT 2 GND P2 HH485 R GND T TB2 C20 01uF I O I O OMRON G5Q 1A4 DC12V SA 5A30VDC CHINA 10A250VAC R14 R27 R28 R31 R32 R35 R36 R39 R40 R44 R43 C43 R49 R48 R56 R54 1002 1002 1002 1002 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 SE...

Страница 40: ...5 R GND T TB2 C20 01uF I O I O OMRON G5Q 1A4 DC12V SA 5A30VDC CHINA 10A250VAC R14 R27 R28 R31 R32 R35 R36 R39 R40 R44 R43 C43 R49 R48 R56 R54 1002 1002 1002 1002 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 1uF 1002 1002 SERIAL ALARM UP DOWN ENTER MENU AAON P N ASM06709 24 VAC GND RELAY CONTACT RATING IS 1 AMP MAX 24 VAC CONDENSER 1 COMP 1 COMP 2 ANALOG OUT REVERSING VALVE COM...

Страница 41: ...2 B2 Condenser Configuration Figure 16 Prism 2 Condenser Configuration A1 B1 and A2 B2 Condenser Configuration HVAC Unit Application The A1 B1 and A2 B2 Condenser configuration is used with the following HVAC units D BOX 50 70 Ton D BOX Air to Air Heat Pump D BOX WSHP ...

Страница 42: ... 2 Condenser Configuration ON OFF Condenser Options Select this option to have the condenser fan turn on off with the compressors This can also be selected when no head pressure control is required Select this option if the condenser fan cycles on off based on the Fan Cycle Head Pressure Setpoints ...

Страница 43: ...11222 AAON Controls Support 866 918 1100 Monday through Friday 7 00 AM to 5 00 PM Central Standard Time Controls Support website www aaon com controlstechsupport AAON Factory Technical Support 918 382 6450 techsupport aaon com NOTE Before calling Technical Support please have the model and serial number of the unit available PARTS For replacement parts please contact your local AAON Representative...

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