Trane S*HF*20-75 Troubleshooting Manual page 99

Configuration - Model Num Digit 17 or 20
Single Zone VAV VVZT:
Note: Single Zone VAV (VVZT) functionality can be inhibited by
setting this parameter to NOT INSTALLED. If set to NOT
INSTALLED the unit will perform CVZT control.
• The following screens will be shown if there is a GBAS(5VDC)
SZSVAV hardware configuration failure. Otherwise press Next/
Previous keys to navigate.
GBAS Configuration Hardware Has Failed
Press Enter to Reset, CANCEL to Ignore
Note: This screen is shown if the unit was configured for SZVAV
and the hardware configuration input on the GBAS(5VDC) has
failed or has been changed.
• Press the ENTER key to accept, and review the following screen.
Check GBAS Config Hardware, Cycle Power
RETURN HERE TO CONFIRM CONFIGURATION
Note: This screen instructs the user to:
1. Turn OFF the power to the unit.
2. Inspect the GBAS(5VDC) hardware configuration input.
3. Restore the power to the Unit.
4. Return to this configuration screen and verify entry.
• Press Next/Previous keys to navigate.
Configuration - Model Num Digit 20 or 17
System Control:
Note: Zone Temp Ctrl (CV) - (CVZT)
Disch Temp Ctrl (VAV) - (VVDA) - (Indicates w/ IGV/VFD)
Disch Temp Ctrl (CV) - (CVDA) - (Indicates w/o IGV/VFD)
• Press Next/Previous keys to navigate.
Configuration - Model Num Digit 21 or 16
Fresh Air Section:
• Press Next/Previous keys to navigate.
RT-SVP07B-EN
INSTALLED
ZONE TEMP CTRL (CV)
No Fresh Air
CONFIGURATION Menu
Used With: Units with GBAS(5VDC)
Hardware Configuration - SZVAV.
Possible Values:
INSTALLED
NOT INSTALLED
Used With: All Units not configured w/
Single Zone VAV (VVZT).
Possible Values:
ZONE TEMP CTRL (CV)
DISCH TEMP CTRL (VAV)
DISCH TEMP CTRL (CV)
Used With: All Units
Possible Values:
NO FRESH AIR
0-100% ECONOMIZER
0-25% MOTORIZED DAMPER
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