80 RT-SVX36G-EN
Installation
– Supply fan - OFF
– Inlet Vanes/VFD - 0% (if equipped)
– Exhaust/Return fan - ON, Exhaust/Return dampers - Open
– O/A dampers - Closed
– Heat - All stages OFF, Modulating Heat output at 0 VDC
– Occupied/Unoccupied output - De-energized (Occupied)
– VO Relay - Energized
– Pre-heater State - Off (if equipped)
• VOM Mode “D” Priority 4 - Purge:
– Supply fan - ON
– Inlet Vanes/VFD - 100% (if equipped)
– Exhaust/Return fan - ON, Exhaust/Return dampers - Open
– O/A dampers - Open
– Heat - All stages OFF, Modulating Heat output at 0 VDC
– Occupied/Unoccupied output - Energized (Unoccupied)
– VO Relay - Energized
– Pre-heater State - Off (if equipped)
• VOM Mode “E” Priority 5 - Purge with duct pressure control:
– Supply fan - ON
– Inlet Vanes/VFD - (if equipped) Controlled by S/A Pressure Control with supply air pressure
high limit disabled.
– Exhaust/Return fan - ON, Exhaust/Return dampers - Open
– O/A dampers - Open
– Heat - All stages OFF, Modulating Heat output at 0 VDC
– Occupied/Unoccupied output - Energized (Unoccupied)
– VO Relay - Energized
– Pre-heater State - Off (if equipped)
“OFF” - will appear in the Ventilation Override screen after all VOM binary inputs have been reset
(opened).
Due to codes in some areas, the definitions for some or all of the VOM modes may have to be locked
into the program by the user. Once the definitions are locked, the Ventilation Override Module must
be replaced in order to reprogram that sequence.
Refer to Figure 34, p. 69 or Figure 41, p. 89 for the proper connection terminals in the unit control
panel for each of the VOM initiating device’s and the appropriate Programming, Troubleshooting
Guide (PTG Latest Edition) for programming instructions.
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