6
Sample Furnace Circuit Board
Power Cord
to EAC Terminals
Use cable connector to secure
power cord to cabinet
Power Supply Connector
Power Supply
Use wire ties to secure power cord
to power supply enclosure
LHT
OFF
DLY
ON
OFF
W2
BL W
EAC-1 TERMINAL
Y1
DHUM
G
COM
24V
W
W
1
Y/Y2
R
TEST/TWIN
HUM
1 2 3
PL
T
A
CRDJ
0.5-AMP024 V AC
FUSE 3-AMP
SEC-1
SEC-2
PL1
NEUTRAL-L2
1
EA C-2
BHT/CLR
BHI/LOR
PL3 1
BL WR
COOL
SP ARE-1
SP ARE-2
1-AMP@115 V AC
EA C-1
PR-1
IDR
HSIR
IDM
IHI/L
O
R
PL2
1
HSI HI LO
S TAT U
S
C
OD
EL
E
D
EAC-2 TERMINAL
HI HEA
T
LO HEA
T
L1
Use terminals to connect the
power cord wires to the furnace
EAC-1 & 2, & ground terminals
Power Supply Connector
Power Cord
Alternate Power Cord
Pass-Thru Hole
A06030
Fig. 9 -- Perfect Air Purifier Electrical Connections
Wiring
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Before installing or servicing system, always turn off main
power to system. There may be more than 1 disconnect
switch.
!
WARNING
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
This unit cannot be powered directly from blower motor
leads. Voltages can exceed 190 VAC (120v motors). Do not
wire directly to blower motor. Wiring to blower motor will
damage power supply and void warranty.
CAUTION
!
a. Ensure power has been removed from the heating and cool-
ing system.
b. Turn the purifier power switch off.
c. Connect the power cord to the power supply connector (see
Fig. 9).
d. Route the power cord through nearest cabinet hole and pro-
tect with enclosed cable connector. Zip ties have been en-
closed to secure the power cord to the side of the power
supply.
e. Attach the quick connect terminals to the furnace EAC--1
and EAC--2 spade connections. Attach the ground ring to
furnace chassis ground.
NOTE
: The purifier is to be powered by 115v/60 Hz.
NOTE
: The purifier should only be powered when airflow is
present. The furnace control EAC spade connections provide
power only when the furnace blower is operating. If EAC
connections are not available, an alternative airflow sensing
mechanism must be used to ensure the purifier is only powered
when airflow is present. Contact a local Bryant distributor for
information on approved alternatives.
UNIT COMPONENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Black Lead -- Connect to HOT (L1) or EAC--1 when
provided.
White Lead -- Connect to Neutral (L2) or EAC--2 when
provided.
Green/Ground Lead -- Connect to Appliance Ground
(Chassis).
CAUTION
!
START--UP AND OPERATION
Checking Air Purifier Operation
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Before installing or servicing system, always turn off main
power to system. There may be more than one (1) disconnect
switch.
!
WARNING
a. Attach the purifier door to the cabinet. A magnet in the door
is used to activate a safety switch in the power supply when
the door is installed. The power supply will not energize the
air purifier unless the safety switch is activated.
CARBON MONOXIDE HAZARD
Failure to follow this warning could result in personal injury
or death.
Do not remove door during blower operation or operate
blower with door removed or improperly latched.
!
WARNING
b. Turn the HVAC system power on and adjust the thermostat
or Perfect Air System Control to activate the system fan.
c. Turn the purifier power switch to on position.
d. The power indicator light above the air purifier power
switch should illuminate (see Fig. 10).
GAP
A
A
