Viconics VT7600 Installation Guide (Current Release 5000 Series PIR Ready) - Manual (Page 37)

37 | PIR Ready VT7600 Series-Installation Guide
Terminal Equipment
Controller in Unoccupied
mode
Select Occupied Hold in Schedule hold or
Override to force the Terminal Equipment
Controller Occupied heating setpoint
Anticycle delay active
Wait, the anticycling period will end and
the equipment will start
Heating setpoint is
satisfied
Raise the Heating setpoint
Low Balance point
attained
1. Mode is locked out based on outside
air temperature
2. Change configuration parameter Low
BP to value -12 °F ( -24 °C ) to by-
pass lockout
Heating lockout attained
1. Mode is locked out based on outside
air temperature
2. Change configuration parameter H
Lock to value 120 °F ( 49 °C ) to by-
pass lockout
Wiring error
1. Start the Fan by forcing the Fan ON
mode
2. Put a jumper across terminals RH &
W1. The heating should come ON. If it
does not, verify wiring and check if a
jumper is required between RC & RH
Wrong reversing valve
configuration
1. Wrong selection of parameter Re
Valve
2. Select O will energize the valve in
cooling operation. Valve is normally
heat.
3. Select B will energize the valve in
heating operation. Valve is normally
cool.