Trane 700 Programming manual

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SYMBIO ™ 700 INFORMATION & TROUBLESHOOTING MANUAL
APRIL 2021 ~UNOFFICIAL~

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Introduction
This publication covers both electromechanical
and Symbio™ controls. Due to the more
complex application and service opportunities,
greater emphasis is placed on units with
Symbio™ controls.
This publication does not cover all aspects of
service. It assumes the service person is an
experienced commercial service technician with
a strong background in electrical controls and
DC circuits. If you are not experienced and fully
qualified in HVAC service, do not attempt to use
this manual to service equipment.
Important Environmental Concerns
Scientific research has shown that certain man-
made chemicals can affect the earth’s naturally
occurring stratospheric ozone layer when
released to the atmosphere. In particular,
several of the identified chemicals that may
affect the ozone layer are refrigerants that
contain Chlorine, Fluorine and Carbon (CFCs)
and those containing Hydrogen, Chlorine,
Fluorine and Carbon (HCFCs). Not all
refrigerants containing these compounds have
the same potential impact to the environment.
Trane advocates the responsible handling of all
refrigerants-including industry replacements for
CFCs and HCFCs such as saturated or
unsaturated HFCs and HCFCs.
Important Responsible Refrigerant
Practices
Trane believes that responsible refrigerant
practices are important to the environment, our
customers, and the air conditioning industry. All
technicians who handle refrigerants must be
certified according to local rules. For the USA,
the Federal Clean Air Act (Section 608) sets
forth the requirements for handling, reclaiming,
recovering and recycling of certain refrigerants
and the equipment that is used in these
service procedures. In addition, some states or
municipalities may have additional
requirements that must also be adhered to for
responsible management of refrigerants. Know
the applicable laws and follow them.

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Contents
Control Box Layouts ................................................................................................................................... 14
Single Fan Condenser ............................................................................................................................. 14
Dual Fan Condenser ............................................................................................................................... 14
Air Handler .............................................................................................................................................. 15
Symbio™ 700 Unit Controller (UC) ............................................................................................................. 16
Symbio™ 700 Unit Controller (UC) Troubleshooting Info ......................................................................... 17
Symbio™ 700 Unit Controller LEDS ............................................................................................................ 18
LED Description Notes ............................................................................................................................ 18
Symbio™ 700 Unit LED Functions .............................................................................................................. 19
Symbio 700 Factory Connections ............................................................................................................... 20
Symbio 700 Field Connections ................................................................................................................... 23
Odyssey Adapter Board ............................................................................................................................. 24
Troubleshooting the Compressor Circuit(s) .............................................................................................. 28
Circuit 1 ................................................................................................................................................... 28
Circuit 2 ................................................................................................................................................... 29
Compressor Control Circuit Troubleshooting Tips - derived from bench testing. ..................................... 30
Compressor Protection – (HPC, DTL or Aux switch proving trip) .............................................................. 31
Compressor “X” Proving Trip & Lockout................................................................................................ 31
Two cases can cause a “Circuit X Proving Lockout” event: ................................................................... 31
Compressor X Contactor Failure (Manual Reset) .................................................................................. 31
Compressor Protection – Low Pressure Cutout Control ........................................................................... 32
Prior to Compressor Startup: ................................................................................................................. 32
After Compressor Startup: ..................................................................................................................... 32
Circuit X LPC Trip (Auto-Reset): ............................................................................................................. 32
For Cooling Only Units or Heat Pumps in Active Cooling: ................................................................. 32
For Heat Pump Units in Active Mechanical Heating and Outdoor Air Temperature ≥ 0°F .............. 33
Circuit “X” Low Pressure Lockout (Manual Reset) ................................................................................ 33
Odyssey Relay Board .................................................................................................................................. 34
Odyssey Options Board – BAYMODU001 .................................................................................................. 37
Indoor Options Module Factory Connections ........................................................................................... 38
J11 Options Module Addressing - future ................................................................................................... 39
Indoor Options Module Communication Troubleshooting ...................................................................... 41

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Adding Electric Heat to a Symbio Air Handler paired with a Symbio Condenser .................................... 43
Electric Heat Adapter Harnesses................................................................................................................ 44
Electric Heat Wiring Diagrams ................................................................................................................... 45
Phase Monitor ............................................................................................................................................ 46
Phase Monitor Wire Connections .............................................................................................................. 47
Emergency Stop .......................................................................................................................................... 48
Supply Air Tempering ................................................................................................................................. 49
Heat Pump Heating Lockout ...................................................................................................................... 50
When the Outdoor Air Temperature Active ≤ Heat Pump Heating Lockout Setpoint – Active: ......... 50
When the Outdoor Air Temperature Active > Heat Pump Heating Lockout Setpoint – Active + 5F: .. 50
Symbio 700 Demand Defrost Operation - derived from bench testing ..................................................... 51
First Defrost permit conditions after Power Up. ................................................................................... 51
Subsequent Defrosts permit conditions. ............................................................................................... 51
Sequence of Operation .......................................................................................................................... 51
Defrost Termination ............................................................................................................................... 51
Defrost Cycle Example ............................................................................................................................ 52
Independent Circuit Defrost Operation ................................................................................................. 52
Default Mode.......................................................................................................................................... 52
Condenser Defrost (Heat Pumps Only)...................................................................................................... 53
Demand Defrost Control ........................................................................................................................ 53
Temperature Sensors (NTC) ....................................................................................................................... 55
Zone Sensor Mode ..................................................................................................................................... 58
Zone Sensor Setpoint ................................................................................................................................. 58
Zone Sensor Info ......................................................................................................................................... 59
BAYSENS800 wiring ................................................................................................................................ 59
BAYSENS135 / X13790886 / Wiring ....................................................................................................... 60
Zone Sensor Averaging ............................................................................................................................... 61
Remote Sensor Wiring ............................................................................................................................... 62
Additional Thermostat / Zone Sensor Info ............................................................................................ 63
Condenser Fan Rotation for Dual Fan Units .............................................................................................. 64
Condenser Fan Staging ............................................................................................................................... 65
Dual condenser fan - shared airstream manifolded (cooling only) ....................................................... 65
Dual condenser fan - independent airstream dual (cooling only and heat pump) .............................. 65

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Compressor Staging .................................................................................................................................... 66
Cooling Only (Electric Heat) – CVZT & VVZT .......................................................................................... 66
Dual compressor cooling staging (manifold or independent) .......................................................... 66
Dual unloading compressor cooling staging (10 and 20 ton)............................................................ 66
Heat Pump – CVZT & VVZT ..................................................................................................................... 66
Dual compressor cooling staging (manifold or independent) .......................................................... 66
Constant Volume/Multi-Speed Fan Space Temperature Control (CVZT) ................................................. 67
Space Temperature Recovery ................................................................................................................ 67
Supply Fan Control ................................................................................................................................. 67
Constant Volume/Multi-Speed Fan Space Temperature Control (CVZT) Chart ................................... 68
Variable Volume Fan Space Temperature Control (SZVAV/VVZT) ........................................................... 69
Supply Fan Control ................................................................................................................................. 69
Variable Volume Fan Space Temperature Control (SZVAV/VVZT) Chart ............................................. 70
VVZT DAT Control Mode ............................................................................................................................ 71
Supply Fan Speed Control .......................................................................................................................... 72
Single-Speed, belt-driven fans ............................................................................................................... 72
2-Speed & Variable Speed VFD-driven fans .......................................................................................... 72
Supply Fan Status Points ........................................................................................................................ 72
Single-Speed ....................................................................................................................................... 72
VFD-driven .......................................................................................................................................... 72
Fan Setpoints with VFD-driven Fan Types ............................................................................................. 72
Supply Fan Maximum Speed Setpoint ............................................................................................... 72
Supply Fan Minimum Speed Setpoint ............................................................................................... 73
Supply Fan Percentages ............................................................................................................................. 73
Multi-speed minimum supply fan speeds ............................................................................................. 73
Variable speed minimum supply fan speeds ......................................................................................... 73
Airflow Adjustments .................................................................................................................................. 74
Constant Volume Units .......................................................................................................................... 74
2 Stage Airflow/Single Zone VAV (Symbio Cond Only) ......................................................................... 74
2 Stage Airflow (Electromechanical Cond Only) .................................................................................... 74
Symbio TR-150 VFD Parameters ................................................................................................................ 75
VFD Parameter Info ................................................................................................................................ 77
VFD Harness Part Numbers .................................................................................................................... 77

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VFD Faults requiring Manual Reset ....................................................................................................... 77
Diagnostic: Supply Fan Failure ........................................................................................................... 77
Supply Fan VFD Communication Status ............................................................................................ 77
TR150 VFD Communication Troubleshooting ........................................................................................... 78
Evaporator Defrost Control ........................................................................................................................ 80
If configured for Evaporator Defrost Control = Enabled: ...................................................................... 80
If configured for FroStat = Installed: ...................................................................................................... 80
SYMBIO 700 Phone APP ............................................................................................................................. 81
Download the App! .................................................................................................................................... 82
Symbio Service & Installation (mobile app) Overview ............................................................................. 83
Bluetooth Connection & Pairing ............................................................................................................ 83
Login ............................................................................................................................................................ 85
Unit List ....................................................................................................................................................... 86
HOME .......................................................................................................................................................... 88
SETTINGS ..................................................................................................................................................... 91
Manage Settings ..................................................................................................................................... 91
View Configuration Sub-Menu ............................................................................................................... 94
STATUS ...................................................................................................................................................... 101
ALARMS .................................................................................................................................................... 106
TOOLS........................................................................................................................................................ 107
Service Test Mode ................................................................................................................................ 108
Service ................................................................................................................................................... 110
IMC Link Reset ...................................................................................................................................... 112
Backup .................................................................................................................................................. 115
Restore .................................................................................................................................................. 116
Update Firmware ................................................................................................................................. 118
Restart Controller ................................................................................................................................. 120
Notes ......................................................................................................................................................... 121
Notes ......................................................................................................................................................... 122
Symbio 700 UC Onboard User Interface Menu Structure ....................................................................... 123
Symbio 700 UC Onboard User Interface Menu Items ............................................................................. 124
HOME .................................................................................................................................................... 125
Status .................................................................................................................................................... 126

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Active Setpoints ................................................................................................................................ 126
System .............................................................................................................................................. 127
Indoor ............................................................................................................................................... 129
Refrigeration ..................................................................................................................................... 130
Heat ................................................................................................................................................... 131
Settings ................................................................................................................................................. 132
System .............................................................................................................................................. 132
Indoor ............................................................................................................................................... 133
Refrigeration ..................................................................................................................................... 133
Heat ................................................................................................................................................... 134
Service ................................................................................................................................................... 135
Diagnostics ........................................................................................................................................ 135
Test.................................................................................................................................................... 135
Statistics Reset .................................................................................................................................. 135
Options Modules .............................................................................................................................. 136
Modbus ............................................................................................................................................. 136
Utilities .................................................................................................................................................. 137
About ................................................................................................................................................ 137
Active Configuration ......................................................................................................................... 137
Edit Configuration ............................................................................................................................ 138
Display .............................................................................................................................................. 139
Date and Time .................................................................................................................................. 139
LON ................................................................................................................................................... 139
Initiating Test Mode on an Odyssey Symbio using the Onboard User Interface. .................................. 140
To Initiate Test Mode ........................................................................................................................... 140
To Exit Test Mode ................................................................................................................................. 140
Interconnecting Wiring Between Condensers and Air Handlers ............................................................ 141
Interconnecting Wire Info. ....................................................................................................................... 141
Pairing A & B: Symbio Condenser or Heat Pump with Constant Volume Air Handler or SZVAV / 2 Speed
Air Handler ................................................................................................................................................ 142
Pairing C: Legacy Electromechanical Condenser with Symbio 2-Speed Air Handler ............................. 142
Symbio Condenser (Cooling or Heat Pump) with Legacy CV Air Handler............................................... 144
Symbio Condenser (Cooling Only) with Legacy 2 Speed Electromechanical Air Handler ...................... 145