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Wiring schematics – Greenheck MiniVent (459023) User Manual

Page 9

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Energy Recovery Ventilator

9

®

Solid State Speed Motor Control

0-10 VDC Fan Motor Control

Wiring Schematics

MB

BLACK

L2

B-

L1

B+

B

MA

A-

A+

0-10VDC

M1

ENERGY WHEEL MOTOR

BLOWER MOTOR A

BLOWER MOTOR B

BLACK

BLACK

BLACK

WHITE

WHITE

WHITE

WHITE

RED

RED

SEE NOTE#1

0-10VDC

SEE NOTE#1

A

SEE NOTE#2

SEE NOTE#2

24v

BLACK

24 VAC

24v

BLACK

24 VAC

MAIN UNIT POWER -110/50/1-115/60/1

(VERIFY MAIN UNIT POWER ON UNIT NAMEPLATE)

L1

GROUND

L2 (NEUTRAL)

L2

L1

B2

A2

B

A

L1

GROUND

L2

ON

OFF

SPEED CONTROLLER

BLOWER B

ON

OFF

SPEED CONTROLLER

BLOWER A

BLACK

M1

ENERGY WHEEL MOTOR

BLACK

BLACK

BLACK

MAIN UNIT POWER -115/208/230/60/1

(VERIFY MAIN UNIT POWER ON UNIT NAMEPLATE)

SEE NOTE#2

MB

MA

BLOWER MOTOR A

BLOWER MOTOR B

SEE NOTE#2

Legend
MA Blower Motor A
MB Blower Motor B
M1 Energy Wheel Motor
M2 Exhaust Blower Motor
M3 Supply Blower Motor
T1

Frost Control Timer
Typical

Settings:

t1 (OFF) = 5 min.
t2 (ON) = 30 min.

TH

Thermostat; non-adjustable 5° setting.
Required to be mounted in outdoor air duct.

TR Transformer