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7.

104.5 Recessed Mount (-R) Models:

1)

Remove cover and any packing material inside unit housing

that may have been used for shipping purposes.

2)

For ease of  installation, and to prevent possible damage to
the equipment, the inverter/charger assembly may be tempo-
rarily removed prior to knockout removal and attachment to
mounting surface. This is accomplished by removing (4) 8-32
hex nuts on the inverter/charger mounting plate. If shipped
factory installed, batteries may also be temporarily removed to
facilitate ease of installation.

3)

Remove the appropriate  knockouts, 7/8” diameter, on the top
and/or left side of the unit housing to facilitate conduit attachment. Also remove the appropriate
round knockouts, 5/16” diameter, which are located on all sides of unit housing. Specific knockout
requirements are dictated by mounting orientation of unit (vertical or horizontal) and location of
wall studs and /or other support members.

4)

Secure housing to support members through round knockouts using mounting hardware (not sup-
plied) sized appropriately to support the unit weight.

IMPORTANT: Unit should be so positioned  that the cabinet extends between 3/8” and 3/4”
beyond the finished wall surface after installation.

5)

Prior to final attachment of unit cover, the LED indicator panel assembly position must be adjusted
to sit flush against inside surface of cover after attachment. This is accomplished using the (2)
8-32 hex nuts on the indicator assembly.

6)

Re-install inverter/charger assembly if removed in step 2.

104.6 Ceiling T-Grid Mount (-T) Models:

1)

Remove cover and any packing material inside unit housing

that may have been used for shipping purposes.

2)

For ease of  installation, and to prevent possible damage to
the equipment, the inverter/charger assembly may be tempo-
rarily removed prior to knockout removal and attachment to
mounting surface. This is accomplished by removing (4) 8-32
hex nuts on the inverter/charger mounting plate. If shipped
factory installed, batteries may also be temporarily removed
to facilitate ease of installation.

3)

Remove the appropriate knockout(s), 7/8” diameter, located
on either side of unit housing to facilitate conduit attachment.

IMPORTANT: Take care to remove only the knockouts required for utility connection. Re-
moval of knockouts if unused and left open will void the plenum rating of the unit.

4)

Mount the unit securely in place between T-Grid members.

NOTICE: Safety chain or cable, rated 50lb minimum working load, 250lb minimum breaking
strength is required to hang the unit in a T-Grid system. Failure to correctly install unit will
cause an unsafe condition!

5)

Re-install inverter/charger assembly if removed in step 2.

Summary of Contents for VESTA Mini

Page 1: ...Installation And Operation Instructions For VST Series Mini Inverter Power Systems Models VST 55 125 VST 110 125 VST 110 250 VST 220 250 Surface S Recessed R and Ceiling T Grid T Mounted Versions ...

Page 2: ...be mounted securely in locations and at heights where it will not be read ily subjected to tampering by unauthorized personnel The use of accessory equipment not recommended by the MANUFACTURER may cause an unsafe condition The AC voltage rating of this equipment is specified on the product label Do not connect equipment to any other voltage Do not use this equipment for other than its intended pu...

Page 3: ...ions 8 105 1 AC Wiring Preparations 8 105 2 AC Input and AC Output Connections 8 Wiring Diagram 1 120VAC Connections 9 Wiring Diagram 2 277VAC Connections 10 106 Battery Information 11 106 1 Tools 11 106 2 Battery installation and Connections 11 Wiring Diagram 1 24V Surface and Recessed Mount Models 12 Wiring Diagram 2 24V Ceiling T Grid Mount Models 12 Wiring Diagram 3 48V Surface Mount Models 12...

Page 4: ...es 90 minutes standard Operating temperature 20 C to 30 C 68 F to 86 F Relative humidity 95 non condensing Note Battery performance rated at 25 C 77 F Table 1 System On Line System Number Battery Battery AC Input Current Thermal Model Efficiency Of Voltage Current 120VAC 277VAC Output In BTUs Number Full Load Batteries VDC Amps Max Max On Line Emergency 98 2 24 3 4 1 2 0 52 9 90 98 2 24 5 7 1 2 0 ...

Page 5: ...nd into the air Do not allow smoking sparks or flames in battery stor age location because hydrogen is concentrated under the vent cap of each cell of the battery Hydro gen is highly explosive and is hard to detect because it is colorless odorless and lighter than air 103 Installation Requirements 103 1 Operating Environment Install the VST inverter system in a clean cool dry place with normal ven...

Page 6: ...damage the equipment NOTE Consider unit knockout locations prior to mounting unit Allow room for easy routing of conduit to entry point 104 4 Surface Mount S Models 1 Remove cover and any packing material inside unit housing that may have been used for shipping purposes 2 For ease of installation and to prevent possible damage to the equipment the inverter charger assembly may be temporarily remov...

Page 7: ...achment of unit cover the LED indicator panel assembly position must be adjusted to sit flush against inside surface of cover after attachment This is accomplished using the 2 8 32 hex nuts on the indicator assembly 6 Re install inverter charger assembly if removed in step 2 104 6 Ceiling T Grid Mount T Models 1 Remove cover and any packing material inside unit housing that may have been used for ...

Page 8: ...y Switch S2 is in the OFF position 2 Make sure the VST inverter system input and output voltages are correct for the particular applica tion Remember that the VST system provides single phase power only 3 The input circuit breaker in the input service panel provides the means for disconnecting AC to the VST inverter system Only authorized persons shall be able to disconnect AC to the unit See NEC ...

Page 9: ... externally switched and will illuminate upon loss of utility AC power regardless of external switch position See D in Wiring Diagram 1 for 120V wiring or I in Wiring Diagram 2 for 277V wiring Switched Load Operation Four Circuit 4C Option Functionally identical to the Switched Load Operation above but provides for the operation of up to four individually switched output circuits See E in Wiring D...

Page 10: ...ND SYS SWITCHEDAND UNS WITCHE D LOADS 120V OP E RATION 120 VAC COMMON GROUND SWITCHES LOAD LOAD SW SW CIRCUIT A CIRCUIT B LOAD LOAD SW SW CIRCUIT C CIRCUIT D OFF OUTPUT TO NORMALLY NOTE ONLY 2 OF 4 POSSIBLE SWITCHED CIRCUITS SHOWN LOCAL LIGHTING SWITCHED LIGHTING LOADS CIRCUIT RATED 20A MAXIMUM UNSWITCHED LIGHTING LOADS F G K ...

Page 11: ...L LIGHTING SWITCHED LIGHTING LOADS CIRCUIT RATED 20A MAXIMUM UNSWITCHED LIGHTING LOADS M N Wiring Diagram 3 Dimming Control 120 or 277VAC Connections NOTE Dimming switches S1 and S2 are designed for independent setting to allow different emergency voltages for Output Circuits 1 and 2 if required CAUTION Dimming switches must be programmed such that loads do not exceed unit rating in emergency mode...

Page 12: ...override circuits allow the user to select the power level the connected load will be operated at in emergency mode Each override circuit is controlled by DIP switches which determine the emergency output power level Emergency output can be set for 25 50 75 or 100 of maximum fixture illumination independent of the local dimmer switch position This level of flexibility provides a highly efficient u...

Page 13: ...nected loads regardless of local control device switch position operating status CONNECTIVITY Any or all of the 4C option override circuits may be used to power lighting fixtures or other loads up to the maximum output capacity of the system The outstanding features of the SPS and LPS sy stems provide additional connectivity and flexibility features to the 4C option The system s universal output a...

Page 14: ...void electric shock and burns caused by contacting battery terminals or shorting terminals during battery installation Do not touch uninsulated battery terminals 8 A qualified electrician who is familiar with battery systems and required precautions must install and service the batteries Any battery used with this unit shall comply with the applicable require ments for batteries in the standard fo...

Page 15: ...ring Number DC Voltage of Batteries Part Number Diagram 24 2 03 002 1 24 2 03 001 1 48 4 03 002 3 VST 220 250 S 48 4 03 001 3 24 2 03 002 1 24 2 03 001 1 24 2 03 002 2 24 2 03 001 2 IMPORTANT Observe correct polarity on the battery terminals Polarity markings may vary from battery to battery ...

Page 16: ... voltage configuration 108 System Start Up Procedure IMPORTANT The VST inverter system is a sophisticated electronic backup power supply Care must be taken to follow the steps below in their exact sequence Failure to do so may result in possible equipment failure CAUTION Familiarize yourself with the shut down procedure in Section 200 1 before proceed ing with the Start Up 1 Hold S1 PRECHARGE SWIT...

Page 17: ...f not routinely re charged NOTE To turn power back on follow the System Start up Procedure outlined in Section 108 Be sure to complete all of the steps to assure the unit will operate properly 200 2 Routine System Maintenance The VST inverter system unit is designed to provide years of trouble free operation The unit does re quire some routine attention to assure peak performance The Manufacturer ...

Page 18: ...acements Substituting batteries not supplied by the Manufacturer will void the UL listing of the system and may cause equipment failure To ensure the superior performance of your VST inverter system and to maintain proper charger operation replace spent batteries only with cells having the same part num ber voltage and ampere hour rating as the original batteries 1 Follow the proper shut down proc...

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