Trane VAV VV550 LonTalk, Руководство по установке и эксплуатации

Страница: 105 / 116

VAV-SVP01A-EN 105
Troubleshooting
Notice:
Equipment Damage!
VAV VV550 Controller outputs are switched to ground. Do not jumper 24VAC to Binary output
Triacs because damage will occur.
Trane/Honeywell Proportional Valve Check Out Procedures
Two problems can occur with the cartridge/ actuator or both that can result in over conditioning the
space.
Cartridge Failure:
• If the actuator is driven closed but there is 1/8" or more play in the indicator (move with your
finger), or the piston has not returned up past the A port or has "frozen". In either case, the
cartridge is not closed off completely. This will result in over heating (or over cooling) in the
space.
Actuator Failure:
• If the actuator has stopped moving to the closed position when commanded to, and there is no
play in the lever, the actuator has failed.
• Remove the actuator and work the cartridge stem manually. If the stem moves freely, then only
the actuator has failed. If the stem is sluggish or stuck, the actuator and the cartridge have failed.
Note: The actuator fault is intermittent and the actuator may operate again when removed from
the valve, or if tapped with a tool while still on the valve.
Note: Actuator indicator on the side of the actuator should be positioned at the top of the actuator
when valve is closed.
VAV Two Position Hot Water Failure Procedures
Check binary outputs
WARNING
Live Electrical Components!
During installation, testing, servicing and troubleshooting of this product, it may be necessary
to work with live electrical components. Have a qualified licensed electrician or other individual
who has been properly trained in handling live electrical components perform these tasks.
Failure to follow all electrical safety precautions when exposed to live electrical components
could result in death or serious injury.
In the event that the heat outputs are not energizing, properly inspect the following:
1. Zone temperature is at or above the heating set point
• Increase the VV550 heating set point.
2. Verify the output configuration in the VV550 setup menu.
• Unit needs to be configured as two position hot water
3. Tracer Summit has the heat output disabled
• Check group, global, and/or Tracer overrides to make sure they are not inhibiting heat
operation.
4. Heat relays have failed
• If VAV VV550 is calling in the status menu for the valve to be open and it is not then check VV550
Triac output, wiring, and Relay output.