Odyssey Symbio
- External Mount (Single or Dual Compressor, One 3 Phase Fan)
- BAYLOAMS10: TTA060, 072, 090, 120, 150 and TWA060, 072, 090, 120
- 1 Controller, 1 Transducer (Additional transducer kit (BAYLOTR001) is needed for dual circuit units)
- IOM (ACC-SVN194*-EN)
- wiring diagram 1213-3356
Internal Mount (Dual Compressor, Dual 3 Phase Fans)
- BAYLOAMS20: TTA180/240/300 and TWA180/240
- 2 Controllers, 2 Transducers
- IOM (ACC-SVN190*-EN)
- wiring diagram 1213-3356
Wiring Diagram:
Text details found in the wiring digram above.
- Jumper default position is on N.O. for cooling only units, move jumper to N.C. Position for heat pump units.
- Remove black factory wire from SOV1, and blue factory wire from SOV2 connect the orange wires from the REV valve terminals to SOV1 and SOV2. Connect the black factory wire to the black supplied wire in LOAM1 and the blue factory wire to the black supplied wire in LOAM2.
- When low ambient kit is installed in a separate enclosure then terminate the green wire the enclosure and the main control box.
- Connections for dual circuit on one module with single fan only.
- Transducer wire color may be white, blue, or green.
Factory Settings: Setpoint - 250 PSIG
DEV DES DESCRIPTION LAT1 Ambient Temperature 1 LAT2 Ambient Temperature 2 LOAM 1 Low Ambient Module 1 LOAM 2 Low Ambient Module 2 OFC1 Outdoor Fan Contactor 1 OFC2 Outdoor Fan Contactor 2 XDCR1 Pressure Transducer #1 XDCR2 Pressure Transducer #2
CAUTION ATTENTION PRECAUCIÓN Use copper conductors only.
LMT Terminals are designed to accept other types of conductors.
Failure to do so may cause damage to the equipmentN'UTILISER QUE DES CONDUCTEURS EN CUIVRE!
LES BORNES DE L'UNITÉ NE SONT PAS CONÇUES POUR RECEVOIR D'AUTRES TYPES DE CONDUCTEURS.
L'UTILISATION DE TOUT AUTRE CONDUCTEUR PEUT ENDOMMAGER L'ÉQUIPEMENT.¡UTILICE ÚNICAMENTE CONDUCTORES DE COBRE!
LAS TERMINALES DE LA UNIDAD NO ESTÁN DISEÑADAS PARA ACEPTAR OTROS TIPOS DE CONDUCTORES.
SI NO LO HACE, PUEDE OCASIONAR DAÑO AL EQUIPO.
Troubleshooting Guide
| Problem | Possible Cause | Possible Solution |
|---|---|---|
| No Fan Operation | No 24 volt control voltage | Check for 24 Vac between Y1 or Y2 and C terminals — it should read 24 volts. |
| No line voltage | Check voltage across brown, orange, and yellow motor leads. If no voltage is present, verify all wiring is correct. | |
| Bad fan motor or controller | If fan does not start, motor is bad and should be replaced. If motor does start, check controller settings. If motor still fails to start, replace controller. | |
| Improper fan operation | Heat pump jumper not configured correctly | Verify the heat pump jumper is configured to N.C. |
| Control is not wired correctly | See wiring diagrams. Ensure that the 24 Vac power supply is connected. | |
| No fan modulation | No need to modulate the fan | Outdoor temperature is above 50 deg F or 10 deg C. If modulation is needed below above this temperature, a 20K ohm or greater resistor can be installed to replace the outdoor sensor. If pressure is equal to or greater than the head pressure control setpoint, the fan will be operating at full speed. |
| No input pressure to control | Check for proper transducer and Tee installation. Schrader valve depressor must depress Schrader valve enough to allow refrigerant into pressure transducer. | |
| Heat pump inputs wired incorrectly into the controller | Check diagram and verify heat pump inputs are properly wired into the controller. | |
| Miswired | Check that the 24 Vac signal and the transducer are wired up correctly into the controller. | |
| Erratic fan operation | Control is not wired correctly | See wiring diagrams. |
| Pressure transducer problem | Check for proper transducer and Tee installation. Schrader valve depressor must depress Schrader valve enough to allow refrigerant into pressure transducer. | |
| Dirty or blocked condenser coil | Clean condenser coil. | |
| The high pressure switch trips off | Improper head pressure setpoint setting | See unit fails to start above. |
| Check the setpoint and reduce it if needed. | ||
| Reduced cooling capacity at low Ambient | Evaporative Defrost Control is active | Disable EDC function in Symbio™ 700 |
Temperature vs. Probe Resistance
| °C | °F | Resistance [KΩ] |
|---|---|---|
| 0° | 32° | 32.7 |
| 5° | 41° | 25.4 |
| 10° | 50° | 19.9 |
| 15° | 59° | 15.7 |
| 20° | 68° | 12.5 |
| 25° | 77° | 10.0 |
| 30° | 86° | 8.1 |
| 35° | 95° | 6.5 |
| 40° | 104° | 5.3 |
| 45° | 113° | 4.4 |
| 50° | 122° | 3.6 |
Pressure vs. Voltage
| Pressure [psig] | Voltage [Vdc] |
|---|---|
| 0 | 0.5 |
| 50 | 0.9 |
| 100 | 1.3 |
| 150 | 1.7 |
| 200 | 2.1 |
| 250 | 2.5 |
| 300 | 2.9 |
| 350 | 3.3 |
| 400 | 3.7 |
| 450 | 4.1 |
| 500 | 4.5 |
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.