Page 3
INTRODUCTION Introduction Passwords This manual provides information on the operation of MicroTech Various menu functions are made accessible based on the unit controller for systems ordered with Refrigeration Only access level of the user. There are four access levels: Level 2, Controls (ROC).
Page 4
NOTICE Remove power when making field connections. Damage to the MicroTech unit controller could occur if connections are made with the power applied. DAIKIN APPLIED MICROTECh FOR REBEL APPLIED ROC...
Page 5
Figure 5: Return or Exhaust Fan Capacity Schematic NOTICE Daikin Applied is not responsible for damage to the unit due to improper control of the dampers. 2 . Outside Air Damper Operation (Non- DOAS) 5 .
Page 6
Figure 12: A2L Refrigerant Leak Alarm Schematic Output Digital output indicates if defrost status is enabled. The contact will be closed when defrost is enabled, otherwise this contact will be open. Figure 9: Defrost Status Schematic DAIKIN APPLIED MICROTECh FOR REBEL APPLIED ROC...
Page 7
NOTICE A dry contact will be provided to the field to indicate the state Daikin Applied is not responsible for damage to the unit due to improper control of the condensate overflow switch. The circuit will open when of the heater.
Page 8
Figure 20: Local Remote Status Schematic to avoid damage to other components. NOTICE Daikin Applied is not responsible for damage to the unit due to improper control of the heater. 19 . Energy Recovery Wheel 21 . Alarm Status Output...
Page 9
QUICK START GUIDE 23 . Outside Air Flow Monitor A 0-10 VDC output from the Ebtron air flow monitoring transmitter will be provided to monitor the outside air flow. Figure 26: Outside Air Flow Schematic 24 . Supply Fan Air Flow Monitor A 0-10 VDC output from the piezo ring on the supply fan(s) will be provided to monitor the supply fans air flow.
Page 10
A2L Leak Detection System condition: Daikin Applied Rooftop units that use an A2L refrigerant have a Refrigerant Leak Detected factory installed leak detection system. The A2L leak detection system consists of the following parts: 1 .
Page 11
A2L DETECTION AND MITIGATION — Compressor operation remains locked-out. remain on until manually cleared — Supply fan is turned on and supply fan minimum speed — Supply fan minimum speed controls are overridden to controls are overridden to prevent the fan from operating prevent the fan from operating below a predetermined below a predetermined speed to maintain adequate speed to maintain adequate airflow through the system...
Page 12
The mitigation test will last approximately 5 minutes. • More than 10 seconds The display shows all the GID values supported by the sensor board as shown in Table 1 on page 11. DAIKIN APPLIED MICROTECh FOR REBEL APPLIED ROC...
Page 13
A2L DETECTION AND MITIGATION Table 2: GID Descriptions GID id Name Min Limit Max Limit Default Description Number of Sensors Number of sensors configured. LFL Fault Threshold 10000 LFL Threshold for setting a fault. LFL ALARM Threshold 1000 LFL Threshold setting an alarm. 150 = 15%. USB Baud Rate 19200 115200...
Page 14
Command to invoke sensor function reset, value = 1 then this command is in- Sensor Reset Command voked. Final result of the sensor reset function operation. Value = 0, the operation was Sen Func Reset Result successful. DAIKIN APPLIED MICROTECh FOR REBEL APPLIED ROC...
Page 15
(collectively “Owner”) that, subject to the exclusions set forth below Company, at its option, will repair or replace defective parts in the event any product manufactured by Company, including products sold under the brand name Daikin and used in the United States or Canada, proves defective in material or workmanship within twelve (12) months from initial startup or eighteen (18) months from the date shipped by Company, whichever occurs first.
Need help?
Do you have a question about the MICROTECH DPSA and is the answer not in the manual?
Questions and answers