Electrical Connections - Greenheck Vektor-MH Installation, Operation And Maintenance Manual

Electrical Connections

Before electrical connections are made, the supply
voltage, phase and ampere capacity must be checked
for compatibility with the fan motor. In addition, the
supply wiring must be properly fused and conform to
local and national electrical codes. If the unit is supplied
with a safety disconnect switch, ensure proper wiring
to the fan motor. Be sure the disconnect is switched to
the "OFF" position before connecting supply wires. If
no disconnect is supplied, ensure the supply wire is not
live before connection. Supply wires are then connected
to the optional safety disconnect switch (if supplied) or
motor.
Vektor-MH and Vektor-MD Motor Disconnect
and Isolation Damper Wiring Diagram
Disconnect is mounted to fan housing. Transformers are
mounted to bypass air plenum with damper actuator
motors. For systems that ship unassembled because
of physical size, this connection at disconnect from
transformers must be field-installed. Wires with conduit
and fittings are provided pre-connected to transformers.
Vektor-MH and Vektor-MD Applications with
Variable Frequency Drives (VFD)
For Vektor systems with single-point, three-phase
wiring per blower, the isolation damper actuator will be
powered via a step-down transformer, which is wired
to the fan disconnect, as shown in the appropriate
diagram.
If fan flow (motor speed) is to be controlled using a
variable frequency drive with this wiring, the reduced
voltage and frequency supplied to the fan will cause
control problems with the isolation damper actuator.
When a project's Vektor control sequence requires the
use of a VFD, it is suggested that the control contractor
supply the isolation damper actuator voltage —
independent of the power supplied to the Vektor fan
motor.
NOTE
For Vektor-MS fans refer to the Vektor SAVVE controls
Installation, Operation and Maintenance Manual for
electrical wiring and connection information.
®
115/208/230/277 volt, single phase
115/208/230/277 volt, single phase
DISCONNECT
115/208/230/277 volt
Single phase
SINGLE
DISCONNECT
PHASE
115/208/230/277 volt, single phase
115/208/230/277 volt
Single phase
LAYOUT
SINGLE
PHASE
DISCONNECT
LAYOUT
115/208/230/277 volt
Single phase
SINGLE
115/208/230/277 volt, single phase
115/208/230/277 volt
Single phase
PHASE
LAYOUT
115/208/230/277 volt
DISCONNECT
Single phase
115/208/230/277 volt
Single phase
SINGLE
208/230/460/575 volt, three phase
PHASE
115/208/230/277 volt
Single phase
LAYOUT
208/230/460/575 volt, three phase
DISCONNECT
208/230/460/575 volt
Three phase
THREE
PHASE
DISCONNECT
208/230/460/575 volt, three phase
208/230/460/575 volt
LAYOUT 115/208/230/277 volt
Three phase
THREE
Single phase
PHASE
LAYOUT
DISCONNECT
208/230/460/575 volt
Three phase
THREE
208/230/460/575 volt, three phase
PHASE
208/230/460/575 volt
60 cycle, three phase
LAYOUT
DISCONNECT
208/230/460/575 volt 208/230/460/575 volt
Three phase 60 cycle, three phase
THREE
208/230/460/575 volt, three phase
PHASE
LAYOUT
208/230/460/575 volt
supplied and wired
208/230/460/575 volt, three phase
60 cycle, three phase
Variable Frequency Drives Layout
THREE supplied and wired
DISCONNECT
PHASE 208/230/460/575 volt, three phase
208/230/460/575 volt
Three phase 208/230/460/575 volt
WITH
THREE 60 cycle, three phase
VFD
DISCONNECT supplied and wired
PHASE
208/230/460/575 volt
LAYOUT Three phase
WITH
VFD
208/230/460/575 volt, three phase
THREE
LAYOUT
DISCONNECT
PHASE
208/230/460/575 volt
Three phase
WITH
supplied and wired 208/230/460/575 volt
60 cycle, three phase
VFD
LAYOUT
THREE 208/230/460/575 volt
60 cycle, three phase
DISCONNECT
PHASE
208/230/460/575 volt
208/230/460/575 volt, three phase
Three phase
WITH
VFD
208/230/460/575 volt
60 cycle, three phase
208/230/460/575 volt, three phase
LAYOUT
Damper Control
Motor Starter
MOTOR with Intergral
Damper Control
DISCONNECT
STARTER 208/230/460/575 volt, three phase
208/230/460/575 volt
208/230/460/575 volt
60 cycle, three phase
Three phase
WITH
MOTOR
with Integral Damper Control Layout
Motor Starter
INTERGRAL
DISCONNECT
with Intergral
STARTER
208/230/460/575 volt Damper Control
DAMPER Three phase
WITH
CONTROL
INTERGRAL 208/230/460/575 volt, three phase
MOTOR
DAMPER DISCONNECT
STARTER
208/230/460/575 volt
Motor Starter
Three phase
CONTROL
WITH
208/230/460/575 volt with Intergral
60 cycle, three phase Damper Control
INTERGRAL
DAMPER
208/230/460/575 volt
MOTOR
60 cycle, three phase
CONTROL
DISCONNECT
STARTER
208/230/460/575 volt
Three phase
WITH
INTERGRAL
208/230/460/575 volt
60 cycle, three phase
DAMPER
CONTROL
208/230/460/575 volt
60 cycle, three phase
Single Phase Layout
LINE IN
Disconnect is mounted to fan housing
LINE IN
Disconnect is mounted to fan housing Optional transformer and isolation damper, refer to CAPS file selection
LINE IN
Optional transformer and isolation damper, refer to CAPS file selection
Disconnect is mounted to fan housing
Transformers must be wired independent
MOTOR
Optional transformer and isolation damper, refer to CAPS file selection
LINE IN
Transformers must be wired independent
MOTOR
Disconnect is mounted to fan housing
isolation damper actuator motor
Transformers must be wired independent
Optional transformer and isolation damper, refer to CAPS file selection
MOTOR
LINE IN
Three Phase Layout
isolation damper actuator motor
Disconnect is mounted to fan housing
LINE IN
Transformers must be wired independent
Disconnect is mounted to fan housing
MOTOR Optional transformer and isolation damper, refer to CAPS file selection
LINE IN isolation damper actuator motor
Optional transformer and isolation damper, refer to CAPS file selection
Disconnect is mounted to fan housing 208/230/460/575 volt, single phase
Transformers must be wired independent
MOTOR
208/230/460/575 volt, single phase
Optional transformer and isolation damper, refer to CAPS file selection
LINE IN
isolation damper actuator motor
Transformers must be wired independent
MOTOR Disconnect is mounted to fan housing
isolation damper actuator motor
208/230/460/575 volt, single phase
Transformers must be wired independent
Optional transformer and isolation damper, refer to CAPS file selection
LINE IN
MOTOR
isolation damper actuator motor
VFD
LINE IN Three Phase with
208/230/460/575 volt, single phase
by others
Transformers must be wired independent
Disconnect is mounted to fan housing
VFD
MOTOR
by others isolation damper actuator motor
LINE IN
Optional transformer and isolation damper,
refer to CAPS file selection
Disconnect is mounted to fan housing
VFD
Optional transformer and isolation damper,
208/230/460/575 volt, single phase
by others
refer to CAPS file selection
Transformers must be wired independent
LINE IN
Disconnect is mounted to fan housing
MOTOR
208/230/460/575 volt, single phase
isolation damper actuator motor
Optional transformer and isolation damper,
Transformers must be wired independent
refer to CAPS file selection
VFD
by others MOTOR
isolation damper actuator motor
208/230/460/575 volt, single phase
Disconnect is mounted to fan housing
Transformers must be wired independent
Optional transformer and isolation damper,
LINE IN
MOTOR
refer to CAPS file selection
isolation damper actuator motor
Motor Starter
LINE IN 208/230/460/575 volt, single phase
with Intergral
Transformers must be wired independent
MOTOR
isolation damper actuator motor
isolation damper actuator motor
LINE IN
Three Phase Motor Starter
Disconnect is mounted isolation damper actuator motor
to fan housing
LINE IN
Disconnect is mounted
to fan housing
MOTOR
isolation damper actuator motor
MOTOR
Disconnect is mounted
to fan housing
isolation damper actuator motor
MOTOR
Disconnect is mounted
to fan housing
MOTOR
Laboratory Exhaust Systems
Field Wiring
Factory Wiring
Field Wiring
Factory Wiring
Field Wiring
Factory Wiring
TRANSFORMER
208/230/277 volt, single phase
from VFD control.
TRANSFORMER
208/230/277 volt, single phase 24/115 volt, single phase
isolation damper actuator motor
Field Wiring
power open/spring close
Factory Wiring
from VFD control.
24/115 volt, single phase
TRANSFORMER
power open/spring close
208/230/277 volt, single phase
from VFD control.
Field Wiring
24/115 volt, single phase Factory Wiring
power open/spring close
TRANSFORMER
Field Wiring
208/230/277 volt, single phase
Factory Wiring
from VFD control.
24/115 volt, single phase
Field Wiring
power open/spring close
Factory Wiring
TRANSFORMER
from VFD control.
TRANSFORMER
24/115 volt, single phase
Field Wiring
power open/spring close
Factory Wiring
from VFD control.
24/115 volt, single phase
TRANSFORMER
power open/spring close
from VFD control.
Field Wiring
24/115 volt, single phase
Factory Wiring
power open/spring close
TRANSFORMER
Field Wiring
Factory Wiring
from VFD control.
24/115 volt, single phase
Field Wiring
power open/spring close
Factory Wiring
TRANSFORMER (if required)
from VFD control.
Field Wiring
TRANSFORMER (if required)
Factory Wiring
24/115 volt, single phase
power open/spring close
from VFD control.
24/115 volt, single phase
TRANSFORMER (if required)
power open/spring close
from VFD control.
24/115 volt, single phase
Field Wiring
Factory Wiring
power open/spring close
TRANSFORMER (if required)
Field Wiring
Optional isolation damper,
Factory Wiring
refer to CAPS file selection
from VFD control.
24/115 volt, single phase
24/115 volt, single phase
Optional isolation damper,
power open/spring close
refer to CAPS file selection
Field Wiring
power open/spring close
Factory Wiring
24/115 volt, single phase
power open/spring close
Optional isolation damper,
refer to CAPS file selection
Field Wiring
24/115 volt, single phase
Factory Wiring
power open/spring close
Optional isolation damper,
refer to CAPS file selection
24/115 volt, single phase
power open/spring close
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