106
VAV-SVP01A-EN
Troubleshooting
•
If VAV VV550 is calling in the status menu and binary output to open the valve and Triac is not
energized then check VV550 Triac output; wiring; and Relay output.
•
Check Binary outputs. See
Figure 59, p. 107
and
Figure 60, p. 108
for correct outputs. Should
have 24VAC; if it does not measure the power input to TB1-1 24VAC input and TB1-2 of the VV550
board. The supply voltage should be between 20 and 28 VAC (24VAC cataloged). However,
voltages at either extreme may result in system instability.
Notice:
Equipment Damage!
VAV VV550 Controller outputs are switched to ground. Do not jumper 24VAC to binary output
Triacs because damage will occur.
•
Heat Triac(s) can be checked with purchasing a 24VAC light bulb and see if it lights up on call
for heat output to be open by VV550. If light bulb does not light up replace VV550.
Содержание VAV VV550 LonTalk
Страница 1: ...May 2010 VAV SVP01A EN Installation Operation Programming VAV VV550 LonTalk Controller...
Страница 17: ...VAV SVP01A EN 17 VAV Start Up Check Out Procedure Figure 2 VV550 single duct control diagram...
Страница 18: ...18 VAV SVP01A EN VAV Start Up Check Out Procedure Figure 3 VV550 fan powered control diagram...
Страница 107: ...VAV SVP01A EN 107 Troubleshooting Figure 59 VV550 single duct control diagram...
Страница 108: ...108 VAV SVP01A EN Troubleshooting Figure 60 VV550 fan powered control diagram...
Страница 110: ...110 VAV SVP01A EN Troubleshooting Figure 62 Single duct with three phase voltage electric heat...
Страница 112: ...112 VAV SVP01A EN Troubleshooting Figure 64 SCR PSC fan powered with three phase voltage electric heat...
Страница 114: ...114 VAV SVP01A EN Troubleshooting Figure 66 ECM fan powered with three phase voltage electric heat...
Страница 115: ......