Broan B6LC, B12LC, B1600705 User Manual
Light Commercial
Heat Recovery Ventilators and
Energy Recovery Ventilators
Installation, Operation
and Service Instructions
VB0002
VB0003
B6LC B1600705
VB0001
B12LC
22638 rev. 05
Table of Contents
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1. Safety Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
2.1 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2.2 Mounting Location Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2.3 Mounting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2.4 Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2.5 Internal Grilles and diffusers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2.6 Exterior Hoods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.7 Drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.8 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
3. Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
3.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.2 Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.3 Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3.4 Remote Wall Control (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
4. Airflow Measurements and Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5. Maintenance and Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
5.1 Bi-Monthly Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
5.2 Annual Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
6. Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
6.1 B6LC-B12LC Exhaust Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6.2 6LC-12LC Recirculation Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
6.3 B1600705 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Appendix A - Mounting Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-11
Appendix B - Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-16
Appendix C - Balancing Dampers Position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Appendix D - Drain Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Appendix E - Terminal Control Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-20
Appendix F - Control Box Assembly B6LC and B12LC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Appendix G - Make-up Heat Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-22
Appendix H - Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-27
Appendix I - Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
1. Safety Considerations
Hazards may exist within this equipment because it contains electrical and powerful moving components.
Only qualified service personnel should install or service this equipment. Untrained personnel can perform basic maintenance such as
maintaining filters.
Observe precautions marked in literature and on labels attached to unit. Follow all safety codes.
WARNING
Disconnect main power switches to unit before performing service or maintenance. Electric shock can cause
personal injury or death.
2
2. Installation
!
2.1 Inspection
Inspect the exterior of the unit for shipping damage by ensuring
that there is no damage to the door, door latches, door hinges,
damper, duct collars, cabinet, etc. Inspect the interior of the unit
for damage by ensuring that the fan motors and housings, heat or
energy recovery cores, insulation, dampers, actuators and drain
pans are all intact.
If transportation damage is found, file a claim immediately with the
transportation agency. Remove all packaging, tape, etc. from the
cabinet.
2.2 Mounting Location Requirements
When determining an installation location, the unit must be mounted
in a heated area to prevent condensate drain lines from freezing.
The mounting location should be away from occupied areas to
provide quiet operation. The area should also be easily accessible
for maintenance.
NOTE:
These units have minimum clearance requirements when
mounting. See Appendix B for specific clearance requirements.
Mounting options must allow 12” clearance in front of control cover
for access.
A mounting location close to an exterior partition will minimize the
length of insulated duct. The unit should be close to a drain and
120 volt, 60 Hz power supply. The unit should be mounted away
from hot chimneys, electrical panels and other hazards.
WARNING
It is recommended to wear safety glasses and gloves
while performing these instructions.
2.3 Mounting Options
There are several options for hanging or floor mounting the unit.
NOTE:
In all cases, the unit must be level. Consult local building code for
restrictions in your area regarding installation.
Hang the unit with the reinforced rubber straps provided as shown
in Appendix A. Check with local building codes regarding the use of
rubber straps in commercial buildings. Attach the straps to the unit
with two no. 8 screws provided. Then attach the other end of the
strap to the ceiling joists, trusses, custom frame, etc.
The unit can also be hung with 3/8” threaded rod and U channels
or angles (not supplied) as shown in Appendix A.
When installing the unit, keep in mind that access to the control
panel may be required. Supply and exhaust ducts to outdoors may
have 1” to 2” of insulation on them. Rubber vibration isolation may
be required and is recommended for quiet operation.
The unit can also be mounted on a metal or wooden curb (not
supplied) bolted to the floor as shown in Appendix A. Space must
be left under the unit to allow connection of drain lines. A gradual
slope is required for the condensate water to drain by gravity
(minimum 1/4”/foot). If this is not possible, a pump should be used.
If attachment of the unit to the curb is required, ensure that screws,
bolts and mounting hardware do not interfere with moving parts or
that the integrity of the cabinet insulation is not affected.
2.4 Ductwork
The supply and exhaust duct connections on the unit are as follows:
UNIT DUCT SIZE
B6LC, B12LC 14” x 8” (356 mm x 203 mm)
B1600705 20” x 8” (508 mm x 203 mm)
NOTE:
Duct sizes are for connection purposes only. Ducts should be sized
to keep noise and pressure drop to a minimum.
The supply and exhaust ducts connected to outdoors, as well as
any ducts passing through an unconditioned space, must have a
minimum insulation value of R5. In addition, a continuous integral
vapor barrier over the duct insulation must be used.
Air balancing dampers are recommended for both supply and
exhaust ducts to allow for adjustment of airflow. Also, flexible canvas
connectors should be installed close to the unit in the supply duct to
the building and the exhaust duct from the building to reduce noise
transmission from the unit to the building, see Appendix C.
All ports on the B6LC and B12LC units have 1” flanges to facilitate
the installation of the ductwork. Please note that the “Fresh Air from
Outdoors” port has a defrost damper incorporated with it.
Ensure that any mechanical fasteners used to connect the duct
do not interfere with the operation of the damper. Screws can be
installed on the side of the cabinet rather than the flange for
this port only. For port locations see Appendix B.
All ports on the B1600705 unit have 2” flanges to facilitate the
installation of the ductwork. Please note the “Fresh Air From
Outdoors” connection is factory set to be the left side upper port. It
is possible to reverse the operation of the defrost damper in order
to use the port on top of the cabinet for “Fresh Air From Outdoors”
connection.
To change the «Fresh Air From Outdoors» from the side to the top
use the following directions. For port locations see Appendix B.
Remove the cover of the damper motor with a flat screwdriver.
Reverse the ORANGE and RED wires by moving the ORANGE
from terminal no. 2 to terminal no. 3 and moving the RED wire from
terminal no. 3 to terminal no. 2. The end result in order to have the
“Fresh Air From Outdoors” connection to the top port will be: no. 1 WHITE, no. 2 - RED, no. 3 - ORANGE.
2.5 Internal Grilles and Diffusers
Locate exhaust grilles and supply diffusers to provide effective
ventilation and avoid short circuiting of airflows. Adjustable dampers
should be provided at every grille and diffuser location to make
balancing of the system possible.
A proper selection of style and size of grilles and diffusers is
required to minimize pressure drop. The velocity of the airflow
should not exceed 400 ft./min. for normal applications.
The duct system should be designed according to the high speed
flow rate of the unit. In order to keep the noise and pressure drop
to a minimum, a maximum air velocity of 1100 ft/min. should be
used in calculations in duct design. The duct runs should be kept
as short as possible with the minimum amount of elbows and
transitions.
The manufacturer recommends the use of smooth radius
elbows or square elbows with turning vanes to achieve maximum
performance.
3
2. Installation (cont’d)
3. Controls
2.6 Exterior Hoods
It is important that the fresh air intake hood be positioned well away
from any source of contamination. The exterior supply and exhaust
hoods must be separated enough to prevent cross-contamination
and at an elevation that will prevent blockage by snow, dirt and
leaves.
NOTE:
Consult local building code for restrictions in your area.
A rodent screen with 1/4” mesh must be installed to prevent the
intake of large debris and animals. A backdraft damper may need
to be installed in the exhaust duct to prevent cold air entering the
building if the unit is to be shut off for a long period of time.
To maintain optimum airflow performance, exterior hood selection
must be such that the minimum free area of opening is 140 inches.
2.7 Drains
The drain fittings provided with the unit will accept a 3/4” NPT coupler
(supplied by others). The drain line for the unit must be fabricated
on-site and connected to the building main. A loop in the hose or
trap in the copper or plastic pipe must be provided to prevent sewer
gases from entering the unit when connecting to a drain as illustrated
in Appendix D.
NOTE:
Consult local building code for plumbing requirements in your area.
If copper pipe is to be used, ensure not to solder to the 3/4” coupler
while it is attached to the plastic drain fitting as deformation may
occur. Ensure adequate slope is present to allow good drainage
(minimum 1/4” per foot).
2.8 Electrical Connections
POWER
A terminal block and strain relief bushing or a junction box is
provided for line voltage to make the necessary power connections.
The electrical requirements are as follows:
B6LC B1600705 B12LC
VO LTAGE 120 V 120 V 120 V
MCA 9.50 A 6.63 A 14.30 A
MOP 12.00 A 9.13 A 20.00 A
3.1 General Information
FAN INTERLOCK RELAY OUTPUT (FF)
External fan control can be achieved by connecting an external
24 volts fan control through dry contacts (FF). These contacts are
closed on a call for ventilation or defrost. See wiring diagram shown
in Appendix E.
S
PEED SELECTION (6LC /12LC UNITS ONLY)
There are three speed settings available with the controls, only two
of which can be functional at any one time. The units are factory
set to use the low and high speed taps on the blower motors. If
necessary, the medium speed tap can be used instead of the low
speed tap. See wiring diagrams for instructions on how to make this
change. Units without the remote wall control option can be shut off
by opening the contact between LOW - COM or HIGH - COM as
shown in Appendix E-2.
3.2 Sequence of Operation
Before start-up, check the unit for obstructive packaging, objects
near or in blowers, dampers, heat exchangers, etc. Once installation
is complete, check all modes of operation to ensure that the unit is
working properly. Close the doors and check for operation on LOW,
COM and HIGH. Use a wall control or the dry contact switching to
run fan speeds as shown in Appendix E-2.
The B1600705 unit is two speed. Low speed can be initiated by
creating a closure across LOW - COM or high speed can be initiated
by creating a closure across HIGH - COM.
UNIT CHECK POINTS (ALL UNITS):
• Power connected, no ventilation call - Both fans are off, defrost
damper (if equipped) closes off fresh air from outdoors.
• Power connected, low speed call - Both fans on low speed
internal defrost damper (if equipped) opens fresh air from
outdoors. For B6LC and B12LC units only, if equipped with
recirculation module, the internal defrost damper closes
recirculation opening.
• Power connected, high speed call - Both fans on high speed,
defrost damper opens fresh air from outside. For B6LC and
B12LC units only, if equipped with recirculation module, the
internal defrost damper closes recirculation opening.
• Power connected, occupied timer/sensor connection open
(unoccupied mode) - Both fans are off, defrost damper closes
fresh air from outdoors. For B6LC and B12LC units only, if equipped
with recirculation module, the internal defrost damper opens
recirculation opening.
• Power connected, FF control contacts close during unit ventilation
or defrost cycle.
4
3. Controls (cont’d)
!
!
5. Maintenance and Service
3.3 Defrost
The unit functions are controlled by integrated controls in the unit
which may include Exhaust Only Defrost or Recirculation Defrost
(via the recirculation module - B6LC and B12LC units only). In cold
temperatures, defrost cycles will remove frost from the recovery
cores to maintain good operation.
E
XHAUST ONLY DEFROST (OPTIONAL)
Frost removal occurs when the supply blower de-energizes, the
supply air damper and the core damper close and the exhaust
fan continues to circulate only warm inside air through the heat
recovery core to maintain ventilation. This process prevents the
build up of ice in the core. Defrost is temperature initiated at 23°F
to -22°F and time based.
WARNING
A negative building pressure may develop during the
defrost cycle with possible backdrafting fumes from
combustion equipment.
RECIRCULATION DEFROST MODULE
(OPTIONAL - FACTORY INSTALLED)
The Recirculation Defrost Module is only available with the B6LC
and B12LC units. The defrost cycle is electronically controlled in
response to the outdoors temperature 23°F to -22°F. On a call for
defrost, the supply air damper in the recirculation module closes,
exhaust fan is de-energized and the supply fan continues to
recirculate warm air through the heat recovery core or energy
recovery core. It is possible to extend the defrost times during very
cold weather by removing the jumper JU1-F on the circuit board
as shown in Appendix F. For dimension and weight changes to the
B6LC and B12LC models with recirculation defrost, see Appendix
B-2 and B-4.
3.4 Remote Wall Control (Optional)
Remote mounted wall control options can be used to control the
ventilators from a location remote to the installed unit location. The
connection from the ventilator to the control is low voltage and
requires a 4 conductor (24 ga. minimum) LVT cable. Models are
available with a dehumidistat control. The following two options are
available.
SLIDE SWITCH TYPE
Dehumidistat to engage high speed exchange. Slide switch operation
supporting continuous low exchange and continuous high exchange.
VT10W (
Ideal for pool dehumidification. Dehumidistat to engage high speed
exchange. Push-button operation supporting: intermittent (stand-by)
ventilation, continuous low exchange, continuous high exchange,
maintenance indicator light and exchange indicator light.
FOR B1600705 UNIT ONLY)
4. Airflow Measurement and Balancing
Once installation is complete, the supply and exhaust airflows
should be balanced. This will ensure proper operation and a good
quality installation.
A well designed duct system with properly sized duct runs and equal
static pressure losses of both the supply and exhaust will aid in balancing
the unit. However, it will be necessary to take flow measurements
with the proper equipment to ensure a balanced system.
Before proceeding with balancing, all windows, overhead doors and
walk-in doors should be closed and exhaust systems should be turned off.
5.1 Bi-Monthly Maintenance
WARNING
Disconnect power before maintaining unit.
Bi-monthly maintenance should include:
IR FILTERS
A
The standard foam filters are washable. Under normal conditions
it is recommended that they be cleaned every two months. More
frequent cleaning may be required under extremely dirty operating
conditions. Use a vacuum cleaner to remove the heaviest portion
of accumulated dirt, then wash with warm water.
A medium efficiency filter for the supply air stream is available from
your supplier. This filter is disposable and should be replaced when
it becomes dirty.
VL0001
2
B6LC and B12LC units
Washable foam filter
MEF filter - optional
1 or 2
1
VL0002A
B1600705 unit
DRAIN PANS AND INTERIOR OF UNIT
With the filters removed from the unit, the foil faced insulation
surfaces and the drain pans should be wiped clean with a soft cloth
and mild cleaning solution. Also ensure that the drain fittings are
free from dirt and are draining freely.
5
1
1
5. Maintenance and Service (cont’d)
!
WARNING
Disconnect power before maintaining unit.
5.2 Annual Maintenance
Annual maintenance should include:
AIR FILTERS
Vacuum and wash standard foam filters. Replace medium efficiency
filter if present.
DRAIN PANS AND INTERIOR OF UNIT
Wash the foil faced insulation surfaces and wipe the drain pans
with a soft cloth and mild cleaning solution. Check the drain fittings
to ensure they are draining freely.
HEAT RECOVERY CORE
The heat recovery core must be handled with care. It is
recommended that it be washed once a year following the season
of most intense use, in order to ensure maximum efficiency of the
partitions.
Allow the heat recovery core to soak for three hours in warm water
and mild soap. Rinse under a heavy stream of water.
CAUTION
Hot water and a strong cleaning agent could damage
the polypropylene core. Ensure the core is reinstalled
in the unit in the correct orientation. Use the sticker as
a guide.
ERV HM C
ORE
CAUTION
Do not soak the ERV HM core in water. This core can
easely be damaged especially if it is soaked.
For ERV HM core, use a vacuum cleaner or low pressure air jet.
It is not recommended to use solvents or detergents as these may
damage the media or structure of the core.
FANS
Blower wheels and fan housing should be checked for dirt build-up.
If they appear dirty, it may be necessary to remove the blower
assembly and then vacuum the dust out through the fan mouth.
See next column for instructions on removing the blower assembly.
SYSTEM OPERATION CHECK
Verification of all control modes should be checked to ensure proper
operation. Refer to 3.2 Sequence of Operation section.
TESTING AND REPLACEMENT OF THE DAMPER ACTUATOR
Check damper operation by switching between LOW - COM or
HIGH - COM on the dry contact terminal or by switching through
the modes on the optional remote wall control. If the damper does
not respond in one or both directions, check all connections.
7000 unit ONLY: Check for 24 volt output between the WHITE/RED
and the WHITE/ORANGE wires at the damper motor. If 24 volts
can be measured at the damper motor, the problem is either in the
connections, the defrost relay or the main circuit board.
6LC/12LC units ONLY: (CAUTION: 120 VAC) Check for 120 volt
output across the WHITE/BLACK wires. If 120 volts can be measured
at the motor, replace the motor. If 120 volts cannot be measured at
the motor, check pins J1-9 at the printed circuit board.
MAIN CIRCUIT BOARD REPLACEMENT
The main circuit board must be replaced if an electronic problem arises.
For example, the unit suddenly stops, the unit stays in defrost
all of the time or if control functions are not working properly.
Ensure that power is reaching the board. Test the blower motors
and damper actuators for operation when directly connected to the
appropriate power voltage. If the motor and damper actuators function
normally, replace the main circuit board.
M
OTOR AND BLOWER REMOVAL AND INSTALLATION
Disconnect power from the unit. To determine if the fan motor is
burned out, disconnect the four-wire service connector between
the motor and cabinet. Connect the motor directly to a 115 volts
power source with an electrical cable, as follows:
RED + WHITE Low speed
BLUE + WHITE Medium speed
BLACK + WHITE High speed
If the motor functions normally, there is a problem with the wiring
connections or the main circuit board. Check all wiring and replace
main circuit board if necessary.
If the blower does not run, it must be replaced. To replace the
motor,remove the recovery core or energy recovery core from the unit.
Disconnect the four-wire service connector from the unit. Remove the
fasteners holding the motor assembly in place. Lift the assembly up
and out, using one hand under the motor and one hand to steady it.
Remove the assembly carefully from the unit to avoid damage to the
insulation, shelf, etc. Install the repaired motor assembly by
following these instructions in reverse.
REMOVE THESE
TWO SCREWS
VD0004A
LOCKING PLATE
CAPACITOR
B6LC and B12LC units
THUMBSCREW
SERVICE CONNECTOR
VD0001A
B1600705 unit
6
6.1 B6LC-B12LC Exhaust Defrost
6. Service parts
B
N
M
L
VL0068
Ref. Part No. Description
B
C
D
E
F
G
H
I
J
K
SV13036 Hinge kit (male-female)
SV1808139 Core Defrost Actuator B6LC-B12LC
SV63341 Core Defrost Actuator B12LC, Powder Coated
SV63327 Core Damper B6LC
SV63328 Core Damper B12LC
SV63329 Core Damper B12LC, Powder Coated
SV201982 Fresh Air Damper B6LC
SV63330 Fresh Air Damper B12LC
SV63331 Fresh Air Damper B12LC, Powder Coated
SV1808138 Fresh Air Damper Actuator B6LC-B12LC
SV63332 Fresh Air Damper Act. B12LC Powder Coated
SV201805 Filter SWF 13.125" x 11.25" x 1" (unitary)
SV1808147 Core Poly B6LC-B12LC (unitary)
SV1604191 Core Aluminum B6LC-B12LC (unitary)
SV1607787 ERV HM Core B6LC-B12LC (unitary)
SV16035 Door Latch-Keeper Kit
SV1607456
SV63342
Drain Fitting B6LC, B12LC, B1600705
(unitary)
Filter Optional MERV 8, B6LC, B12LC
(unitary)
C D
E
F
G
JK
H
I
Ref. Part No. Description
SV1808130 PCB Electronic B6LC, B12LC, B1600705
SV202382 Thermistor B6LC, 1B2LC, B1600705
L *
SV500025914
SV500025915
SV1808144 Blower Ass’y B6LC
SV1808148 Blower Ass’y B12LC
SV1808148P Blower Ass’y B12LC Powder Coated Option
SV1808142 Blower Wheel B6LC, B12LC (not shown)
M
SV1808149 Fan Motor B6LC (not shown)
SV1808150 Fan Motor B12LC (not shown)
SV63110 Capacitor 5 F LC, B1600705 (not shown)
SV208507
N
* SV63571 Door Assembly B6LC, B12LC
* SV63572
* SV1808145 Accessories kit B6LC, B12LC
* SV63344
* Not Shown.
Relay SPDT 120 VAC, 1 HP,
30 A @ 120 VAC, B6LC, B12LC
Relay DPST 120 VAC, 1 HP,
30 A @ 120 VAC, B6LC, B12LC
Terminal Strip 10-Pin Molex 38721-6710,
B6LC, B12LC
Door Assembly
(Powder Coated Option)
Hanger Strap 18" Kit B6LC, B12LC,
B1600705
B12LC
NOTE: C and D not available for ERV HM Core
NOTE 2: H 2 cores required for B6LC unit
3 cores required for B12LC unit
NOTE 3: G 4 filters for B6LC unit
6 filters for B12LC unit
NOTE 4: K 2 filters for B6LC unit
3 filters for B12LC unit
7
6.2 B6LC-B12LC Recirculation Defrost
H
6. Service parts (cont’d)
B
M
L
K
VL0069
Ref. Part No. Description
B
C
D
E
F
G *
H
I
J
* Not Shown.
NOTE 1: C 2 cores required for B6LC unit
3 cores required for B12LC unit
NOTE 2: D 4 filters for B6LC unit
6 filters for B12LC unit
SV13036 Hinge kit (male-female)
SV1808146 Core Poly UL B6LC-B12LC (unitary)
SV1604191 Core Aluminum B6LC-B12LC (unitary)
SV1607787 ERV HM Core B6LC-B12LC (unitary)
SV201805 Filter SWF 13.125" x 11.25" x 1" (unitary)
SV63333 Recirculation Damper B6LC
SV63334 Recirculation Damper B12LC
SV63335 Recirculation Damper B12LC, Powder Coated
SV225855
SV066161 Fuse Holder B6LC, B12LC, B1600705
SV201603
SV63352
SV066176
SV500025914
SV64098 Transformer 120-24V 40VA
SV16035 Door Latch-Keeper Kit
SV1607456 Drain Fitting B6LC, B12LC, B1600705 (unitary)
SV63342
Damper Motor Belimo LMB24-3-T, B1600705,
B6LC-B12LC (Recirculation Defrost Option)
Terminal Strip 3-Pin Molex 38721-6703
B6LC, B12LC (Recirculation Defrost)
Relay DPDT 24 VAC, 1/2 HP, 15 A @ 120 VAC,
B6LC, B12LC (Recirculation Defrost Option)
Fuse 0.25 A, 250 V Time Delay 1.25" MDL
B6LC-B12LC (Recirculation Defrost Option)
Relay SPDT 120 VAC, 1 HP,
30 A @ 120 VAC, B6LC, B12LC
Filter Optional MERV 8, B6LC, B12LC
(unitary)
C
J
DE F
I
Ref. Part No. Description
SV1808130 PCB Electronic B6LC, B12LC, B1600705
SV202382 Thermistor B6LC, B12LC, B1600705
K *
SV500025914
SV500025915
SV1808144 Blower Ass’y B6LC
SV1808148 Blower Ass’y B12LC
SV1808148P Blower Ass’y B12LC Powder Coated Opt.
SV1808142 Blower Wheel B6LC, B12LC (not shown)
L
SV1808149 Fan Motor B6LC (not shown)
SV1808150 Fan Motor B12LC (not shown)
SV63110 Capacitor 5 F LC, B1600705 (not shown)
SV208507
M
* SV63571 Door Assembly B6LC, B12LC
* SV63572
* SV1808145 Accessories kit B6LC, B12LC
* SV63344
* SV64228 Backdraft damper B6LC recirculation
* SV64229 Backdraft damper B12LC recirculation
* Not Shown.
NOTE 3: J 2 filters for B6LC unit
3 filters for B12LC unit
D
Relay SPDT 120 VAC, 1 HP,
30 A @ 120 VAC, B6LC, B12LC
Relay DPST 120 VAC, 1 HP,
30 A @ 120 VAC, B6LC, B12LC
Terminal Strip 10-Pin Molex 38721-6710,
B6LC, B12LC
Door Assembly
(Powder Coated Option)
Hanger Strap 18" Kit B6LC, B12LC,
B1600705
G
B12LC
8
6.3 B1600705
E
F
G
H
6. Service parts (cont’d)
B
DC
L
K
VL0070
Ref. Part No. Description
SV16035 Door Latch-Keeper kit
B
Damper Motor Belimo LMB24-3-T,
SV225855
C
SV1604178 Fresh Air Damper
D
SV1604168 Blower Ass’y B1600705
SV1604177 Blower Wheel (not shown)
E
SV1604169 Fan Motor B1600705 (not shown)
SV63110 Capacitor 5 F LC, B1600705 (not shown)
SV202790
F
SV1808130 PCB Electronic B6LC, B12LC, B1600705
SV202382 Thermistor B6LC, B12LC, B1600705
SV63117 Transformer B1600705
G *
SV63345
SV066161 Fuse Holder B6LC, B12LC, B1600705
SV066169
B1600705, B6LC-B12LC (Recirculation
Defrost Option)
Terminal Strip 7-Pin Molex 38721-6707,
B1600705
Relay DPDT 120 VAC, 1/2 HP, 15 A @ 120 VAC,
B1600705, B6LC, B12LC
Fuse 0.5 A, 250 V Time Delay 1.25" MDL
B1600705
J
I
Ref. Part No. Description
SV13036 Hinge Kit (male-female)
H
SV1604156 Core Poly B1600705
I
SV1607456
J
SV134147
K
SV134145
L
* SV1608701
* SV63573
* SV027123 Anti-vibration Bushing B1600705 (unitary)
* SV63344
* Not Shown.
Drain Fitting B6LC, B12LC, B1600705
(unitary)
Filter SWF 18.6" x 15.6" x 1" B1600705
Exhaust (unitary)
Filter SWF 19" x 22.75" x 1" B1600705
Supply (unitary)
Optional MERV 7, Filter B1600705 Supply
(unitary)
Door Ass’y B1600705 (Powder Coated
Option)
Hanger Strap 18" Kit B6LC, B12LC,
B1600705
9
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