VAV-SVP01A-EN
15
VAV Start Up/Check Out Procedure
VV550 Power Wiring
Power Requirements
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow proper
lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to
disconnect power before servicing could result in death or serious injury.
WARNING
Electrocution and Fire Hazards with Improperly Installed and Grounded
Field Wiring!
Improperly installed and grounded field wiring poses FIRE & ELECTROCUTION hazards. To avoid
these hazards, you MUST follow requirements for field wiring installation and grounding as
described in the National Electrical Codes (NEC) and your local/state electrical codes. All field
wiring MUST be performed by qualified personnel. Failure to follow these requirements could
result in death or serious injury.
Notice:
Use Copper Conductors Only!
Unit terminals are not designed to accept other types of conductors. Failure to use copper
conductors could result in equipment damage.
Use at least 16 AWG for power wiring and connect to terminal TB1-1 (+) and TB1-2 (-). 24VAC is
required to power the VAV VV550 Controller and has an acceptable voltage tolerance of 18 to 32
VAC. Refer to
Figure 2, p. 17
and
Figure 3, p. 18
for the VAV VV550 Controller terminal locations.
Replace the VAV VV550 Controller control box cover after field wiring to prevent any
electromagnetic interference.
Note:
A dedicated 24VAC, 50VA NEC class 2 transformer is recommended to power the VAV VV550
Controller. When powering multiple VAV VV550 Controllers from one transformer, polarity
must be maintained. Terminal TB1-1 is designated positive (+) and terminal TB1-2 is
negative (-) to the unit casing ground
The power consumption for cooling only Series F Models (VariTrac and VariTrane) is 12 VA (4 VA
for the air valve/actuator and 8 VA for the VV550 control board). To determine the total VAV VV550
Controller power requirement, add the power consumption per stage to the circuit board power
requirement. For example, a Series F unit containing magnetic contactors with three stages of
reheat would consume 42 VA.
Table 3.
VA for factory-installed components
Style
Volt Amps
F - Style Actuator
4 VA
Air Valve Actuator C through E Style
12 VA
Varitrac Actuator
3 VA
Fan Power Fan Output
6 VA
Hot Water Proportional
4 VA
Hot Water 2 Position
6.5 VA
Electric Heater Magnetic Contactor
10 VA
Electric Heater Mercury Contactor
12 VA
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...
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