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

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Legacy Electromechanical Condenser with Symbio CV Air Handler ....................................................... 146
Legacy Reliatel Condenser (Cooling or Heat Pump) with Symbio CV Air Handler ................................. 147
- Pairings not in the IOM - ......................................................................................................................... 148
Reliatel Condenser paired with a Symbio SZVAV Air Handler ............................................................ 149
Symbio Condenser (Cooling Only) with Reliatel SZVAV Air Handler (TR-150 only) ........................... 151
Symbio Condenser (Cooling Only) with Reliatel SZVAV Air Handler (TR-150 and TR-200) ............... 153
Experimental Relay Logic Defrost Heat Circuit ........................................................................................ 156
Odyssey Air Handler R22 and R410a TXV Valve Conversion Guide ........................................................ 157
Odyssey Refrigeration Miscellaneous Info. ............................................................................................. 158
Microchannel Heat Exchanger Condensers (MCHE) ........................................................................... 158
Solenoid Valves .................................................................................................................................... 158
Moisture-Indicating Sight glass ............................................................................................................ 158
Hot Gas Bypass ..................................................................................................................................... 159
Line Sizing ............................................................................................................................................. 159
Oil-Traps ............................................................................................................................................... 159
Leak Checking ....................................................................................................................................... 159
System Evacuation ............................................................................................................................... 159
Unit Charging ........................................................................................................................................ 160
TTA Charging and Pressure Charts ........................................................................................................... 161
TTA0724*A* with TWE0904*A* .......................................................................................................... 162
TTA0724*D* with TWE0724*B* .......................................................................................................... 163
TTA0724*D* TWE0724*B* Pressure Curve ......................................................................................... 164
TTA0904*A* with TWE0904*A* .......................................................................................................... 165
TTA0904*A* with TWE1204*A* .......................................................................................................... 166
TTA0904*D* with TWE0904*D* .......................................................................................................... 167
TTA0904*D* with TWE0904*D* Pressure Curve................................................................................. 168
TTA1204*C* with TWE1204*A* ........................................................................................................... 169
TTA1204*D with TTA1204*C ................................................................................................................ 170
TTA1204*D with TTA1204*C Pressure Curve ...................................................................................... 171
TTA1204*D with TTA1204*C ................................................................................................................ 172
TTA1204*D with TTA1204*C Pressure Curve ...................................................................................... 173
TTA1804*D* with TWE2404*B* .......................................................................................................... 174
TTA1804*D* with TWE2404*B* Pressure Curve ................................................................................. 175

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TTA1804*C* with TWE1804*B* ........................................................................................................... 176
TTA2404*D* with TWE2404*B* .......................................................................................................... 177
TTA2404*D* with TWE2404*B* Pressure Curve ................................................................................. 178
TTA2404*C* with TWE2404*B* ........................................................................................................... 179
TTA3004*C* with TWE3004*B* ........................................................................................................... 180
TTA0902*A* with TWE0902*A* .......................................................................................................... 181
TTA1202*A* with TWE1202*A* .......................................................................................................... 182
TTA1802*D* with TWE180B* .............................................................................................................. 183
TTA2402*D* with TWE240B* .............................................................................................................. 184
TTA1802*D with TWE180B .................................................................................................................. 185
TTA2402*D with TWE240B .................................................................................................................. 186
TWA Charging and Pressure Charts ......................................................................................................... 187
TWA0724*A with TWE0904*A ............................................................................................................. 188
TWA0724*A with TWE0904*A Pressure Curve ................................................................................... 189
TWA0724*D with TWE0904*B ............................................................................................................. 190
TWA0724*D with TWE0904*B Pressure Curve ................................................................................... 191
TWA0904*A with TWE0904*A ............................................................................................................. 192
TWA0904*A with TWE0904*A Pressure Curve ................................................................................... 193
TWA0904*D with TWE0904*D ............................................................................................................ 194
TWA0904*D with TWE0904*D Pressure Curve ................................................................................... 195
TWA1204*A with TWE1204*A ............................................................................................................. 197
TWA1204*A with TWE1204*A Pressure Curve ................................................................................... 198
TWA1204*D with TWE1204*D ............................................................................................................ 199
TWA1204*D with TWE1204*D Pressure Curve ................................................................................... 200
TWA1804*D with TWA1804*B ............................................................................................................ 202
TWA1804*D with TWA1804*B Pressure Curve ................................................................................... 203
TWA2404*D with TWA2404*B ............................................................................................................ 205
TWA2404*D with TWA2404*B Pressure curve ................................................................................... 206
TWA0902*A with TWE0902*A ............................................................................................................. 208
TWA1202*A with TWE1202*A ............................................................................................................. 209

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Control Box Layouts
Single Fan Condenser
Dual Fan Condenser

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Air Handler

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Symbio™ 700 Unit Controller (UC)
Main Unit Controller
Includes all IO required to control a base unit
Included as base controller on all Symbio™ Condensers.
The Symbio 700 controller provides a 2 X 16 backlit LCD display on the middle of the controller.
The onboard user interface includes a Bluetooth pair button to pair with the Symbio 700 controller for
use with the mobile service tool.

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Symbio™ 700 Unit Controller (UC) Troubleshooting Info
Note: J19-7 and J21-1 are current limited to 1.1 amp.
Note: J2 is not intended to charge mobile phones.
Be aware on of wire colors, for some reason Black is 24 VAC Hot and Red is 24 VAC Common.
24 VAC power for the board comes in on J4-1 & 2. This comes from the Adapter Board J2.
Plugs P7 (Condenser Fan Out) and P11 (SOV 1 & 2 Out) are powered from P6, which is powered from
either Adapter Board J1 or TNS2 on 10T, 20T DUAL TTA AND ALL TWA UNITS.

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Symbio™ 700 Unit Controller LEDS
LED Description Notes
• The LEDs for the internal relays along the right-hand side of the Symbio 700 board illuminate
a solid green color when the relay is energized. The description in the illustration has which
output is active.
• LED 3 – Bluetooth is on when Bluetooth is connected and flashes during pairing, otherwise,
it is off.
• LED 7 – Ethernet Activity light is for the Ethernet Port. The light will flash green whenever
there is network traffic.
• LED 8 – Ethernet Link light is also for the Ethernet Port. The light will be solid yellow
whenever the Symbio 700 board is connected to a router or network switch.
• LED 9 – System light is normally a solid light when power is applied and after the boot
sequence
• LED 10 – Alarm Status is normally off unless there is an active alarm then it will flash a red
light
• MODBUS TX/RX – Normally off unless the AHU is configured for SZVAV or multispeed.
When normally communicating with the VFD, both lights will pulse at the same time with
about a second in between flashes and a couple quick pulses every now and then.
• IMC TX/RX – Normally has very fast pulsing almost making the lights look just dim

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Symbio™ 700 Unit LED Functions
LED 1 – P7-1 (Black) SOLID ON=When output is on, OFF=When output is off
LED 2 – P7-3 (Black) SOLID ON=When output is on, OFF=When output is off
LED 3 – Bluetooth
OFF = Bluetooth radio is not available
ON = Active Bluetooth connection in process
BLINKING = Controller is waiting for a Bluetooth connection
LED 4 – P7-5 (Black) SOLID ON=When output is on, OFF=When output is off
LED 5 – P8-5 (Red) SOLID ON=When output is on, OFF=When output is off
LED 6 – P8-6 (Red) SOLID ON=When output is on, OFF=When output is off
LED 7 – Ethernet SOLID ON = When link is connected
OFF = When link is disconnected
LED 8 – Ethernet BLINKING = Activity on link, OFF = No activity on link
LED 9 – System SOLID GREEN = All objects in a normal state
OFF = Controller not powered or is in an alarm condition
LED 10 – Alarm Status BLINKING RED = At least one object is in a not normal state
OFF = Controller not powered or is in a normal state
LED 11
–
Modbus RTU Link
(VFD) TX BLINKING GREEN = when Modbus data is sent
LED 12
–
Modbus RTU Link
(VFD) RX BLINKING YELLOW = when Modbus data is received
LED 13 – IMC (Options board) IMC Link TX BLINKING GREEN = when IMC data is sent
LED 14 – IMC (Options Board) IMC Link RX BLINKING YELLOW = when IMC data is received
LED 15 – P9-5 (White) SOLID ON=When output is on, OFF=When output is off
LED 16 – P9-6 (White) SOLID ON=When output is on, OFF=When output is off
LED 17 – P10-5 (Blue) SOLID ON=When output is on, OFF=When output is off
LED 18 – P10-6 (Blue) SOLID ON=When output is on, OFF=When output is off
LED 19 – P11-1 (White) SOLID ON=When output is on, OFF=When output is off
LED 20 – P11-3 (White) SOLID ON=When output is on, OFF=When output is off
LED 21 – P5-2 SOLID ON=When output is on, OFF=When output is off
LED 22 – P5-4 SOLID ON=When output is on, OFF=When output is off
LED 23 – BACnet MS/TP Link RX BLINKING YELLOW = when BACnet data is received
LED 24 – BACnet MS/TP Link TX BLINKING GREEN = when BACnet data is received

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Symbio 700 Factory Connections