Broan Indoor Air Handler Variable Speed Conversion Kit Installation guide

Indoor Air Handler Variable Speed Conversion Kit
Broan
Brand
Broan
Model
Indoor Air Handler Variable Speed Conversion Kit
Type
Installation guide
Installation Instructions
Indoor Air Handlers - Variable Speed Conversion Kit
INTRODUCTION
These instructions are for the installation of a Variable
Speed Conversion Kit in an air handler. Refer to the Air
Handler Installation Instructions for details necessary
for the proper set-up of the unit. A copy is included with
this kit.
These instructions are primarily intended to assist
qualified individuals experienced in the proper installa-
tion of heating and/or air conditioning appliances. Some
local codes require licensed installation/service personnel
for this type equipment. All installations must be in
accordance with these instructions and with all applicable
national and local codes and standards.
Before beginning the installation, read these instructions
thoroughly and follow all warnings and cautions in the
instructions and on the unit. When performing brazing
operations have a fire extinguisher readily available and
use a quenching cloth and brazing shield.
Improper installation, service, adjustment, or
maintenance can cause fire, electrical shock or other
conditions which may result in personal injury or property
damage. Unless otherwise noted in these instructions,
only factory authorized kits or accessories may be used
when modifying this product.
DESCRIPTION
Figure 1. Typical Air Conditioning and
Heat Pump System Connections
INSTALLATION
1. Disconnect and pull blower motor wires back through
the blower deck.
2. Remove blower.
3. Attach the variable speed circuit board and bracket
to the rail of the blower assembly with the 2 screws
provided.
4. Install variable speed blower.
5. Plug the 8 pin low voltage wiring harness supplied
with parts package to the connector on the air handler
control board located behind the terminal strip. Note:
The plug will only attach in one direction.
6. Route low voltage wires through the hole in the blower
deck.
7. Connect the low voltage wires to the variable speed
blower board as shown in the wiring diagram. See
Figure 2.
8. Connect the 3-wire (black, white and green) plug sup-
plied with parts package to the mating connection on
the motor.
Note: Make sure ground wire is attached to the blower
housing assembly with screw provided in parts pack-
age.
9. Route black and white wire through the hole in the
blower deck.
GRW
2
CEOY
Thermostat
OD
Stat
O Y
R
C
Air Handler Heat Pump OD
Section
GRW
Thermostat
YC
Air Handler A/C OD Section
Y
NOTE: In AC applications, the O and Y connection
must be connected as shown.
W
2
E
Typical Air Conditioner with
Variable Speed Air Handler
Typical Heat Pump with Optional Outdoor
Thermostat and Variable Speed Air Handler
NOTE: Jumper
W1 and W2
together for
shorter
staging time
(see table 2 in
Air Handler
Instructions).
NOTE: Jumper
W1 and W2
together for
shorter
staging time
(see table 2 in
Air Handler
Instructions).
W2
W1
O
Y
G
R
C
W2
W1
O
Y
G
R
C
10. Connect the black and white wire to the air handler
control board as shown in the wiring diagram. See
Figure 2.
11. Connect the thermostat wiring as shown in Figure 1.
12. Attach wiring diagram (7105440) supplied with parts
package to the front of the blower housing.
Motor Settings
WIRING DIAGRAM
Variable Speed Air Handler
High Voltage
Low Voltage
High Voltage
Factory Wiring
Field Wiring
NOTES:
1) Not suitable for systems exceeding120V to ground
2) If any internal wiring must be replaced, it must be
replaced with 105C wire of the same gauge.
3) When connecting accessories to circuitboard,
remove the jumper supplied with the unit.
4)
For A/C applications, connect "O" to "Y".
1
2
3
5
4
GREEN
W2
W1
O
Y/Y2
G
R
C
24VAC
COM
TRANSFORMER
POWER SUPPLY
CUT WIRES TO
REMOVE PLUG HOUSING
WHEN HEATER KIT IS
NOT INSTALLED
24V
WHITE
BLACK
GREY
BLACK
WHITE
MOTOR
1
2
3
5
4
6
7
8
9
10
11
12
13
14
15
16
1
2
3
5
4
6
7
8
9
10
11
12
13
14
15
16
1
2
3
5
4
6
7
8
9
10
11
12
13
14
15
16
ORANGE
WHITE
GREY
RED
GREEN
WIRE
HARNESS
240/208
BLOWER BOARD
CONTROL BOARD
FUSE
1
2
3
5
4
6
7
8
9
10
11
12
13
14
15
16
GCO
HUM
Y1
WR
HUM
Y/Y2
L2 COM 2
L2
L2COM
L1
VS POWER
XFMR
COOL
HEAT
Y1
HEATER PLUG
P3
123
4
5
6 78
YELLOW
BLUE
RED
JUMPER
SELECTOR SWITCHES
NOTE: 1 = ON
0 = OFF
710544D (Replaces 710544C)
¢710544¬¤
CFM
Switch
Number
A-Cabinet B-Cabinet C-Cabinet
1234
540 720 1075
0001
600 800 1225
0000
660 880 1380
0010
715 850 1135
1001
790 945 1295
1000
870 1040 1460
1010
915 1085 1525
0101
955 1140 1625
1101
1015 1205 1740
0100
1060 1325 1960
0110
1075 1265 1860
1100
1165 1390 2090
1110
Nom.
KW
CFM
Switch
Number
A-Cabinet B-Cabinet C-Cabinet
56
0-5 700 700 -
00
0-9- - 700
00
6-9 800 --
10
6-10 - 800 -
10
10-14 950 --
01
10-14 --950
10
11-15 - 950 -
01
15 1100- -
11
15-20 --1100
01
16-20 - 1100-
11
21-30 --1500
11
Minimum Electric Heat Air-Flow
Delay
Desc
Switch
Number
78
Delay A
00
Delay B
01
No Delay
10
De-Hum
11
Delay Settings
(all models)
(Modular blower supports 20kW heat max.)
Figure 2. Variable Speed Air Handler Wiring Diagram
INSTALLER:
PLEASE LEAVE THESE INSTALLATION INSTRUCTIONS WITH THE HOMEOWNER.
708544A (Replaces 7085440)
Specifications & illustrations subject to change
without notice or incurring obligations (05/15).
O’Fallon, MO, © Nortek Global HVAC LLC 2015.
All Rights Reserved.
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Broan Indoor Air Handler Variable Speed Conversion Kit Installation guide

Indoor Air Handler Variable Speed Conversion Kit
Broan
Brand
Broan
Model
Indoor Air Handler Variable Speed Conversion Kit
Type
Installation guide
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