Greenheck Fan Vektor-HS Plenum Drainage Piping / Trap Detail By Others, Electrical Connections

Plenum Drainage Piping / Trap Detail (By Others)

Fan Drain	Plenum Drain
Connection	Connection

There is a location for a pipe connection on each tubular fan housing and bypass air plenum. Each drain may need to be connected to a drainage system to ensure proper disposal of any water or condensate that may occur.

t
%SBJO
DPOOFDUJPOT
BSF

JODI
/15

t
*OTUBMMFE
QJQJOH
UP
IBWF
B
EPXOXBSE
BOHMF
UP
BMMPX
for drainage

t
'JMM
USBQT
UP
SFDPNNFOEFE
MFWFM
CFGPSF
TUBSUVQ

Note: A conservative method of trap design is to set N = total static pressure.

Positive Pressure Trap on Tubular Fan Housing

Connect		1.25 inch
		minimum
this end
to fan drain.
		N
H/2	H	H/2
FAN OFF		FAN ON

N = Negative fan pressure (inches W.C.)

H = N - (0.5 inches minimum)

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-H 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.

Single Phase Layout

		LINE IN			Field Wiring
115/208/230/277 volt, single phase					Factory Wiring
DISCONNECT			Disconnect is mounted to fan housing
115/208/230/277 volt			Optional transformer and isolation damper, refer to CAPS file selection
Single phase
				TRANSFORMER
				208/230/277 volt, single phase
				Transformers must be wired independent
		MOTOR		from VFD control.
				24/115 volt, single phase
				isolation damper actuator motor
115/208/230/277 volt				power open/spring close
	Single phase

Three Phase Layout

LINE IN		Field Wiring
208/230/460/575 volt, three phase
		Factory Wiring
	Disconnect is mounted to fan housing

Negative Pressure Trap on Bypass Air Plenum

		1.25 inch minimum
		N
H	H/2	H/2

DISCONNECT

208/230/460/575 volt

Three phase

MOTOR

208/230/460/575 volt 60 cycle, three phase

Optional transformer and isolation damper, refer to CAPS file selection

TRANSFORMER

208/230/460/575 volt, single phase

Transformers must be wired independent

from VFD control.

24/115 volt, single phase isolation damper actuator motor power open/spring close

FAN OFF FAN ON

N = Negative fan pressure (inches W.C.)

H = N - (0.5 inches minimum

Electrical Connections

NOTE

Refer to the Vektor-HS SAVVE controls Installation, Operation and Maintenance Manual for electrical wiring and connection information.

Before electrical connections are made, the supply voltage, phase and ampere capacity must be checked

Three Phase with

Variable Frequency Drives Layout

LINE IN

208/230/460/575 volt, three phaseField Wiring

Factory Wiring

VFD

supplied and wired

by others

	Disconnect is mounted to fan housing
DISCONNECT	Optional transformer and isolation damper,
208/230/460/575 volt
	refer to CAPS file selection
Three phase
	TRANSFORMER (if required)
	208/230/460/575 volt, single phase
	Transformers must be wired independent
	from VFD control.
MOTOR	24/115 volt, single phase
	isolation damper actuator motor
	power open/spring close
208/230/460/575 volt
60 cycle, three phase

Laboratory Exhaust System 7

®