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
