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Government · Bonham, Texas

Clyde W. Cosper Texas State Veterans Home

Electrical work for five rooftop HVAC unit replacements and a Daikin VRV system at the Clyde W. Cosper Texas State Veterans Home in Bonham, performed for HTS with Falkenberg Construction as the prime general contractor.

Bonham, TXCompleted May 2024
Crane lifting a rooftop HVAC unit as the crew works on the roof of the Cosper Texas State Veterans Home

Documented electrical scope

Electrical scope of work in Bonham, TX

  • Power for five replacement rooftop units
  • Daikin VRV system power and controls
  • Exhaust fan and hot water pump circuits
  • Voltage verification at new equipment

Koryente provided the electrical work for an HVAC replacement at the Clyde W. Cosper Texas State Veterans Home in Bonham, performed for HTS with Falkenberg Construction as the prime general contractor.

On the roof, Koryente disconnected the five existing rooftop units so a crane could lift them off, then pulled feeders up through the curbs and terminated power in each new unit's electrical cabinet once it was set.

Koryente also ran conduit and feeders for a new Daikin VRV system: the outdoor condensing unit, fed from panel HCV, along with its control panel, the branch selector boxes above the ceiling, and a fan coil unit with its own external disconnect.

New circuits feed two exhaust fans, terminating at their factory-installed disconnects, and the two hot water pumps received new 480-volt connections in place of the old wiring. Voltage was verified at the VRV equipment, fan coil, and exhaust fans.

Clyde W. Cosper Texas State Veterans Home photos

Existing rooftop unit RTU-1 rigged to a crane under a bright sky on the veterans home roof
Existing RTU-1 rigged and ready to lift once Koryente had disconnected its power.
Lifting straps attached to the side of existing rooftop unit RTU-1 before removal
Rigging straps set on RTU-1 before the crane took its weight.
Crew in safety vests rigging rooftop unit RTU-1 to a crane on a flat commercial roof
The crew rigs RTU-1 on the roof, with the disconnected unit ready to come off its curb.
Crane lifting existing rooftop unit RTU-1 off the roof while a worker watches
RTU-1 lifted clear of the roof after its electrical disconnect.
Access door and labels of existing Seasons-4 rooftop unit RTU-2 before replacement
The existing RTU-2 before its power was disconnected for replacement.
Crane rigging existing rooftop unit RTU-2 at sunrise with crew on the roof
An early start: the crane rigs RTU-2 at first light.
Side of existing rooftop unit RTU-3 with lifting cables attached along its base
Existing RTU-3 rigged along its base for the lift.
Workers beside existing rooftop unit RTU-4 as it is rigged for removal
The crew prepares existing RTU-4 for removal.
Existing rooftop unit RTU-4 rigged to a crane on the veterans home roof
RTU-4 rigged to the crane, its power already disconnected.
New rooftop unit RTU-5 staged on the ground before being lifted to the roof
New RTU-5 staged on the ground before the lift.
Disconnect handle, labels, and RTU-2 marking on a new rooftop unit before installation
The new RTU-2 before installation, with its disconnect handle and listing labels.
Open electrical cabinet of new rooftop unit RTU-2 showing contactors and terminal blocks
Inside the new RTU-2 electrical cabinet before Koryente terminated the feeders.

Showing 12 of 98 photos

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