Bryant ERVBBLHA Series, ERVBBLHA1200, ERVBBLHA1150 Installation Instructions Manual
ERVBBLHA
ENERGY RECOVERY VENTILATOR
SIZES 1150 AND 1200
Installation Instructions
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 1.........................
INTRODUCTION 1...................................
INSTALLATION CONSIDERATIONS 1...................
COMPONENT DESCRIPTIONS 2.......................
UNIT INSTALLATION 2...............................
WALL CONTROL 3...................................
ELECTRICAL CONNECTIONS 5........................
ACCESSORIES 5.....................................
BALANCING ERV 5..................................
VENTILATION EVALUATION 6........................
CONTROL BOARD OPERATION 6......................
CARE AND MAINTENANCE 7.........................
TROUBLESHOOTING 9...............................
WIRING DIAGRAM 10................................
A07619
Fig. 1 -- ERVBBHA Energy Recovery Ventilator
NOTE: Read the entire instruction manual before starting the
installation.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury or property
damage. Consult a qualified installer, service agency or your
distributor or branch for information or assistance. The qualified
installer or agency must use factory--authorized kits or accessories
when modifying this product. Refer to the individual instructions
packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Have a fire extinguisher available. Read these
instructions thoroughly and follow all warnings and cautions
included in literature and attached to the unit. Consult local
building codes and the current edition of the National Electrical
Code (NEC) NFPA 70.
In Canada, refer to the current editions of the Canadian Electrical
Code CSA C22.1.
Recognize safety information. When you see this symbol
the unit and in instructions or manuals, be alert to the potential for
personal injury. Understand the signal words DANGER,
WARNING,andCAUTION. These words are used with the
safety--alert symbol. DANGER identifies the most serious hazards,
which will result in severe personal injury or death. WARNING
signifies hazards, which could result in personal injury or death.
CAUTION is used to identify unsafe practices, which may result
in minor personal injury or product and property damage. NOTE
is used to highlight suggestions which will result in enhanced
installation, reliability, or operation.
on
INTRODUCTION
The ERVBBHA Energy Recovery Ventilator is used to exchange
indoor stale air with outside fresh air. The unit is equipped with a
special energy recovery core which transfers both sensible and
latent heat between the fresh incoming air. The cross--flow design
core allows entering and leaving air streams to transfer heat energy
without mixing. (See Fig. 2.)
The ERVBBHA is available in 2 sizes with airflow ranges of
60--148 CFM (28 -- 71 L/s), and 60-- 183 CFM (28 -- 89 L/s). The
design of this unit is horizontal. Special attention should be given
to duct application, balancing the ERV, and locating unit for easy
access and routine maintenance.
INSTALLATION CONSIDERATIONS
Inspect Equipment
Move carton to final installation location. Remove ERVBBHA
from carton taking care not to damage unit. Remove all packaging
and inspect unit for damage. Remove parts bag from inside unit.
File claim with shipping company if shipment is damaged or
incomplete. Check to make sure ERV unit matches Fig.1.
Select Location
The ERV should be located in a conditioned space andinclose
proximity to a fused power source. It should be easily accessible
for routine maintenance.
If ERV is installed independent of a forced--air system, unit should
be located near the center of the air distribution system. If ERV is
installed in conjunction with a forced--air system, unit should be
located next to (or close to) the indoor equipment.
Fig. 2 -- ERV Airflow During Air Exchange
Independent System Application
In the absence of a forced--air system and a typical duct system
layout, the ERV can be applied as an independent or stand alone
unit. To ensure comfort, this type of application involves running
both fresh --air and return--air registers (or stale--air pickup registers)
throughout the home.
Fresh--air registers are normally located in bedrooms, dining
rooms, living rooms, and basements. It is recommended that
registers be placed 6 to 12” (152 to 305 mm) from the ceiling on an
interior wall and airflow directed toward the ceiling. If registers are
floor installed, airflow should be directed toward the wall.
A07572
9
10
7
ERV
3
2
Fig. 3 -- ERVBBHA Components
6
5
4
Component Description
The following listed items are components of ERVBBHA (see Fig.
3).
1. Stale air return from building connected to return--air duct
system.
2. Fresh--air intake connected to outdoor air inlet hood.
3. Exhaust--air connected to outdoor air exhaust hood.
4. Mechanical filters trap dust contained in the air.
5. Energy recovery core is a cross--flow type. It transfers sensible and latent energy between the 2 air streams.
6. Blowers bring in fresh--air from outside and exhaust stale-air to outside.
7. Electronic control circuit ensures proper unit operation.
8. Fresh--air supply from ERV connected to return--air duct of
forced air system.
9. Terminal connector block for wiring wall and timer controls.
10. Electrical cord connects to standard 115v outlet.
UNIT INSTALLATION
!
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Do not install ERV in a corrosive or contaminated
atmosphere.
Mount Unit
The ERV can be suspended from floor joists using chains and 4
springs. Attach metal hanging bracket to all 4 sides of cabinet (see
Fig. 4). The unit may be installed on a shelf if an isolation pad is
provided to dampen vibration. Unit should always be installed as
level as possible.
8
1
A07613
A92269
Fig. 4 -- Chain Spring Installation
!
WARNING
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal injury
or death.
Do not install return--air registers (or stale--air pickup registers)
in same room as gas furnace or water heater.
Return--air (or stale--air pickup registers) are normally located to
draw from kitchens, bathrooms, basements, or other rooms where
stale--air can exist.
Proper size and type of registers must be used to minimize pressure
drop. The velocity of airflow through register should not be above
400 ft per minute.
Maximum length of duct for the system should be designed
according to the highest speed of the unit. Refer to specifications
listed in unit Product Data Digest for ventilation capacities.
Forced--Air Application
Most ERV applications will be installed in conjunction with new or
existing forced--air systems. To operate properly, the fresh--air
supply and stale--air return from ERV connect directly to return--air
duct system. This is how the ERV distributes fresh air and removes
stale air from inside of building (see Fig. 5). For these installations,
furnace or fan coil blower must be interlocked and operate
continuously whenever ERV is energized.
NOTE: The fresh air from ERV is introduced into return--air duct
at a point no less than 6 ft (1.8 m) upstream of furnace or fan coil.
This connection should be direct (see Fig. 5). This is to allow
incoming fresh--air to mix before entering indoor equipment.
2
A07617
R
Fig. 5 -- Exhaust Ventilation
FRESH-AI
SUPPLY
FLEXIBLE
DUCT
STALE-AIR
RETURN
DUCTS CONNECTING TO
RETURN-AIR DUCT SYSTEM
A07610
Fig. 6 -- Flexible Duct Fit--Up
Connect Ducts to ERV
!
CAUTION
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in minor property
damage from sweating duct or loss of unit efficiency and
capacity.
ERV should be installed in a conditioned space with insulated
flex duct for supply and exhaust air to the outdoor ambient.
eliminate transmission of noise or vibration from unit to main duct
system. In addition, there are four 30” (762 mm) duct ties provided
to help fasten flexible duct to port on ERV.
Locate and Install Exterior Hoods
IMPORTANT: To prevent condensation problems, insulated
flexible ducts are required on both fresh--air inlet and exhaust--air
outlet ducts connecting between ERV and exterior wall.
Fresh--air intake and stale--air exhaust must be separated by at least
6 ft (1.8 m). Fresh--air intake must be positioned at least 10 ft (3 m)
from nearest dryer vent, furnace exhaust, driveway, gas meter, or
oil fill pipe. Fresh--air intake must be positioned as far as possible
from garbage containers and potential chemical fumes. When
possible, it is advised to locate the intake and exhaust hoods on
same side of house or building. The intake and exhaust hoods
should never be located on interior corners or in dead air pockets
(see Fig. 5). Both intake and exhaust hoods must be 18” (457 mm)
from ground and at least 12” (305 mm) above anticipated snow
level.
After selecting proper hood locations, make appropriate size hole
through exterior wall, pass flexible duct through hole and insert
hood tube into duct. Tape duct vapor barrier tightly around hood
tube and insert assembly back into wall and fasten securely.
WALL CONTROL
Location
The ERV wall control is unique to this unit. The ER V will not
operate without it. This control senses humidity not temperature. It
must be located in an area where it will continually monitor fresh
air circulating within the home. Install ERV wall control as close as
possible to main system thermostat and follow same guidelines as
installing a thermostat (locate approximately 5 ft (1.5 m) above
floor, mount on an inside partitioning wall, etc.).
Wiring
Remove top cover assembly from wall control and pass thermostat
wire through hole located on back of control before attaching to
wall. Connect Y, R, G, and B (yellow, red, green, and black)
between wall control and ERV connector following color code (see
Fig. 7 and 8). Replace top cover assembly.
NOTE: ERV wall control and circuit board operate on 12 VDC.
ERV
Insulated flexible duct is required on both fresh--air inlet and
exhaust--air outlet ducts connecting to exterior wall. When
using insulated flexible duct, the vapor barrier of the flexible ducts
must be taped very tightly to prevent condensation problems. To
reduce pressure drop, stretch the flex duct and support it in a proper
manner to avoid reduced airflow.
When connecting the ERV to a return--air duct system, insulated
flexible duct can be used. When using metal duct from fresh--air
supply to system duct work, the metal duct should be insulated (see
Fig. 6). However, when metal or rigid ducts are applied use
approximately 18” (457 mm) of flexible duct at ERV ports for
fresh--air supply and stale--air return. This can act as a silencer
when connecting ducts to return--air duct system. This should
YELLOW
RED
GREEN
BLACK
YR GB
A00112
Fig. 7 -- Typical Wall Control
3
CONTROL
W
CONNECTOR
BLACK
GREEN
RED
YELLOW
Fig. 8 -- Control Connector
ERV
Operation
The ERV wall control has 4 basic modes of operation, OFF, LOW,
HIGH, and INTERMITTENT. Be sure that all modes of operation
are fully functional. See Table 1 indicating standard control
operation.
1. With switch OFF, ERV is inoperative and the LED is out.
2. With switch on LOW, ERV continuously exchanges air
with outside. If control is satisfied, blower will run in low
speed, otherwise, blower will run on HIGH speed. The LED
is illuminated all the time.
3. INTERMITTENT--If relative humidity level inside of
building is higher than setpoint, then no air exchange will
occur and ERV shuts off. If relative humidity level inside
building is lower than setpoint, then air exchange occurs at
high speed, and shuts down ERV when humidity level
reaches setpoint. This mode is ideal for maintaining proper
humidity level when continuous mode cannot. To ensure
highest degree of humidity control in cooling season, intermittent mode should be used.
Humidity Selection
The humidity selector is a built--in control designed to properly
control the level of humidity in the house during the summer
months. This acts like a limit switch. See Table 2 to select
maximum humidity level. If the house becomes too dry in winter
months, put wall control in INTERMITTENT mode and turn
down humidity selector to provide ventilation less frequently.
Table 1 – Basic Control
MODE OPERATION
Off Off Closed to outside Off
Low
Intermittent
High
Air exchange with
outside
Air exchange with
outside
Air exchange with
outside
Table 2 – Recommended Humidity Levels
OUTSIDE
TEMPERATURE
50°F/10°C 55% 65%
32°F/0°C 45% 55%
14°F/--10°C 35% 45%
-- 4 °F/--20°C 30% 45%
-- 2 2 °F/ --30°C 25% 35%
DOUBLE--PANE
WINDOWS
DAMPER
POSITION
Open to outside Low
Open to outside Low
Open to outside High
TRIPLE--PANE
WINDOWS
A07611
FAN
SPEED
NOTE: The ERV may be controlled using the Evolution system
control. The ERV may be connected using either a NIM or a
4--Zone Damper Module. See the appropriate instructions if using
the NIM of a 4-- Zone Damper Module for connection instructions.
OneTouch Control
The OneTouch control may be used as the primary wall control for
the ERV. This control will step through the modes of operation
with consecutive presses of the button. The LED indicates which
mode is currently selected; Off, Intermittent, Low, or High. There
is no humidity sensor on the OneTouch, and it will not provide
direct humidity control.
OLOCIYRGB
Latent Control
NOTE: To ensure highest degree of humidity control in cooling
season, the INTERMITTENT mode should be used.
Blower interlock relay is not needed for use with the Evolution
system control. The Evolution system control will simultaneously
control the ERV and the indoor blower.
Push Button Timers may be used and are connected to the ERV as
shown in Figure 9. However, the Evolution system should be set to
continuous fan to ensure that the fresh air is circulated in the home.
In a Zoned System, at least one zone should be set to continuous
fan.
ELECTRONIC CONTROL
BOARD
The ventilator has four settings in heating mode and three settings
in cooling mode.
Heating:
OL
OC
J1
(OC)
BLACK Ð (J3-4)
COMMON
TERMINAL
STRIP
J3
9
8
7
6
5
4
I
3
41 7
52 8
63 9
60 MINUTE TIMER
BACK OF PUSH BUTTON SWITCH
(OPTIONAL)
THE WIRES FROM THE SWITCH
YELLOW Ð INDICATOR, (J3-3)
BLACK Ð COMMON, (J3-4)
RED Ð SWITCH, (J3-5)
(OPTIONAL)
PUSH BUTTON SWITCHES
(5 SWITCHES MAXIMUM)
(I)
YELLOW Ð (J3-3)
INDICATOR
TERMINAL STRIP
RED Ð (J3-5)
SWITCH
TERMINAL STRIP
(OL)
RED
BLACK
YELLO
A98386
Fig. 9 -- Push Button Timer Wiring Layout
OPERATING THE ERV WITH THE
EVOLUTION CONTROL
AUTO -- the ventilator selects the speed based on indoor
humidity and outdoor temperature. It may cycle on/off every
30 minutes depending on humidity and outside temperature.
LOW -- low speed all of the time.
HIGH -- high speed all of the time.
4
Loading...