Carrier HRVXXSHB1100 Unit installation

Energy Recovery Ventilator
Heat Recovery Ventilator
ERVXXSVB1100
ERVXXSHB1100
HRVXXSVB1100
HRVXXSHB1100
Installation Instructions
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 2
COMPONENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . 2
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
WALL CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
OPERATING THE ERV/HRV WITH
THE INFINITY/EVOLUTION CONTROL . . . . . . . . . . . . . . . 6
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . 6
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
BALANCING ERV/HRV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
VENTILATION EVALUATION . . . . . . . . . . . . . . . . . . . . . . . . 8
CONTROL BOARD OPERATION . . . . . . . . . . . . . . . . . . . . . . 8
CARE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . 8
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
A05229
Fig. 1 - ERV/HRV Unit (Top Port)
A05330
Fig. 2 - ERV/HRV Unit (Side Port)
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 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 or cautions
included in literature and attached to the unit. Consult local
building codes and the current editions 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. This is the safety–alert symbol
When you see this symbol on the unit and in instruction manuals,
be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and
CAUTION. 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.
INTRODUCTION
The Energy/Heat Recovery Ventilator (ERV/HRV) is used to
exchange indoor stale air with outside fresh air. The unit is
equipped with a special energy/heat recovery core which transfers
both sensible and/or latent heat between the fresh incoming air and
stale exhaust air. The cross–flow design core allows entering and
leaving air streams to transfer heat and/or latent energy without
mixing. See Fig. 3.
FRESH AIR
FROM OUTSIDE
STALE AIR
FROM BUILDING
FRESH AIR
TO BUILDING
STALE AIR
TO OUTSIDE
A07460
Fig. 3 - ERV/HRV Airflow During Air Exchange
(Bottom view with access door removed)
ERV/HRV is installed in conjunction with a forced–air system, unit
should be located next to (or close to) the indoor equipment.
COMPONENT DESCRIPTION
The following listed items are components of ERVCCSHA. See
Fig. 4.
1. Exhaust–air connected to outdoor air exhaust hood.
2. Fresh–air intake connected to outdoor air inlet hood.
3. Fresh–air supply from ERV connected to return–air duct of
forced–air system.
4. Mechanical filters trap dust contained in the air.
5. HRV cores are cross–flow. ERV cores are counter–flow.
The cores transfer heat and energy between the two 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. Stale air return from building connected to return–air duct
system.
ERV ports on side (bottom view)
The model operates at 2 airflows, 50 CFM in low speed and 100
CFM in high speed. This unit comes in two configurations, vertical
or horizontal. Special attention should be given to duct application,
balancing the ERV/HRV, and locating unit for easy access and
routine maintenance.
4
5
4
8
2
3
1
INSTALLATION CONSIDERATIONS
Inspect Equipment
Move carton to final installation location. Remove ERV/HRV 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/HRV unit matches Fig. 1 or
Fig. 2.
Select Location
The ERV/HRV should be located in a conditioned space and in
close proximity to a fused power source. It should be easily
accessible for routine maintenance.
If ERV/HRV is installed independent of a forced–air system, unit
should be located near the center of the air distribution system. If
7
6
A12550
Fig. 4 - Conventional Horizontal Unit
See Fig. 5 for terminal connector block for wiring wall and timer
controls.
WALL CONTROL
CONTROL
CONNECTOR
BLACK
GREEN
RED
YELLOW
A
W ARNING
B
AVER TI SS EMENT
Ri s k of electric s hoc k. Be fo re per fo rmin g
an y maintenance or s ervici ng, al ways
dis connect the unit fr om it s p ow er s our ce .
Da nger d’électr ocution. Dé branchez
toujour s l’a ppareil av ant d’entre prendr e
de s tra vaux d’entretien ou de ré paration.
CA UTIO N
AT TENTION
Un s cr ew both s cr ews to open the electrical Dé viss er le s deux vi s p our ouvrir le com par timent
com par tment . To com plete ly remo ve , detac h électrique . Pour retirer com plètement , le
fr om it s retention wire in s ide.
détacher de s on fil de rétention intérieur .
No light
Amber light
Green ligh
Blinking light
Sans lumière
OFF or remote controled
LOW speed
HIGH speed
See User Manual
Arrêté ou contrôlé
par contrôle mura
l
Lumière ambre
Basse vitesse
Lumière verte
Haute vitesse
Clignotant
Voir guide d’utilisation
Terminal
Connector
A07418
Fig. 5 - Control Connector
2
UNIT INSTALLATION
!
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 room,
living room, and basement. It is recommended that registers be
placed 6 to 12–in (152 to 305mm) from the ceiling on an interior
wall and airflow directed toward ceiling. If registers are floor
installed, airflow should be directed toward the wall.
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Do not install ERV/HRV in a corrosive or contaminated
atmosphere.
!
WARNING
CARBON MONOXIDE POISONING HAZARD
Mount Unit
The ERV/HRV can be suspended from floor joists using chains and
4 springs. Attach metal hanging bracket to all 4 sides of cabinet.
See Fig.6. 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.
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 kitchen, bathroom, basement, 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 (122m) 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
A05331
Fig. 6 - Chain Spring Installation
Independent System Application
In the absence of a forced–air system and a typical duct system
layout, the ERV/HRV can be applied as an independent or stand
Most ERV/HRV applications will be installed in conjunction with
new or existing forced–air system. To operate properly, the
fresh–air supply and stale–air return from ERV/HRV connect
directly to return–air duct system. This is how the ERV/HRV
distributes fresh air and removes stale air from inside of building.
See Fig. 7. For these installations, furnace or fan coil blower must
be interlocked and operate continuously whenever ERV/HRV is
energized. See Fig. 17 for interlock wiring detail.
NOTE: The fresh air from ERV/HRV is introduced into return–air
duct at a point no less than 6 ft (1.8m) upstream of furnace or fan
coil. This connection should be direct. See Fig. 7. This is to allow
incoming fresh–air to mix before entering indoor equipment.
NOTE: A + B = Not less than 10 ft / 3 m
A
3 ft / .9 m MIN
B
FURNACE
INSULATED DUCT CONNECTING
FRESH AIR & EXHAUST TO OUTSIDE
NOTE: Supply & exhaust ducts have
internal balancing dampers that must
be adjusted.
ERV
INLET HOOD
REAR
6 ft / 1.8 m
EXHAUST HOOD
18" / 457 mm
GROUND LEVEL
A07282
Fig. 7 - Exhaust Ventilation
3
Connect Ducts to ERV/HRV
!
Condensate Drain
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.
If ERV/HRV duct work is installed in an unconditioned
space, insulated flexible duct is required.
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 tight 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/HRV to a return–air duct system,
insulated flexible duct can be used. However, when metal or rigid
ducts are applied use approximately 18–in (457mm) of flexible
duct at ERV/HRV ports for fresh–air supply, and stale–air return.
When using metal duct from fresh–air supply to system duct work,
the metal duct should be insulated. See Fig. 8. This can act as a
silencer when connecting ducts to return–air duct system. This
should eliminate transmission of noise or vibration from unit to
main duct system.
(For ERV, skip this step and continue to the next step.)
To connect condensate drain, proceed as follows:
1. Punch out holes in foam insulation and door, then insert
sleeved grommets into bottom of unit using the gasket
washer and nut. See Fig. 9.
2. Cut two sections of plastic tubing, about 12–in. / 305mm
long and attach them to each drain.
3. Join the two short sections of plastic tubing to the “T” connector and the main tube as shown.
4. Make a loop in the tubing below the “T” connector to create
a trap to prevent sewer gases from entering the ventilation
system. See Fig. 9.
5. Connect unit drain to building’s main drain. Provide slight
slope from unit for run–off.
STALE-AIR
RETURN
FRESH-AIR
SUPPLY
A99268
Fig. 9 - Condensate Drain With Loop Trap (HRV Only)
WALL CONTROL
Types
FLEXIBLE DUCTS CONNECTING TO
RETURN-AIR DUCT SYSTEM
A08102
Fig. 8 - Flexible Duct Fit–Up
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/HRV and exterior wall.
Fresh–air intake and stale–air exhaust must be separated by at least
6 ft (1.8m). Fresh–air intake must be positioned at least 10 ft (3m)
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. 7. Both intake and exhaust hoods must be 18–in (457mm)
from ground and at least 12–in (305mm) 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.
Four remote wall control options are available:
1. Basic Control (see Table 1).
2. OneTouch Control
3. Standard Control (includes dehumidistat)
4. Latent Control (includes humidistat for use with ERV’s only)
Table 1 – Basic Control
OPERATION
DAMPER
POSITION
FAN
SPEED
Off
Off
Closed to outside
Off
Low
Air exchange with
outside
Open to outside
Low
Intermittent
Air exchange with
outside
Open to outside
Low
High
Air exchange with
outside
Open to outside
High
MODE
Location
The Standard Control and the Latent Control sense humidity and
not temperature. They must be located in an area where they will
continually monitor fresh air circulating within the home. Install
ERV/HRV wall controls as close as possible to main system
thermostat and follow same guidelines as installing a thermostat
(locate approximately 5 ft /1.5m above floor, mount on an inside
partitioning wall, etc.)
4
Wiring
OneTouch Control
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/HRV connector following color
code. See Fig. 5 and 10. Replace top cover assembly.
NOTE: ERV/HRV wall control and circuit board operate on
12VDC.
The OneTouch Control can be used as the primary wall control for
the ERV/HRV. 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.
NOTE: OneTouch Control does not have a humidity selector.
NOTE: OneTouch Intermittent mode exchanges air on low speed
for 20 minutes per hour.
Latent Control
NOTE: For Latent Controls used with ERVs, to ensure highest
degree of humidity control in cooling season, the
INTERMITTENT mode should be used.
Integrated Control
All units are equipped with an integrated control, located under the
unit, in front of the electrical compartment. Use the push button (1)
to control the unit. The LED (2) will then shows on which mode
the unit is in. Integrated Control overrides Wall Control function.
When LED is off, ventilator responds to Wall Control command.
See Fig. 11.
YELLOW
RED
GREEN
BLACK
Y
R
GB
WARNING
Fig. 10 - Typical Wall Control
The humidity selector is a built–in control designed to properly
control the level of humidity in the house during the winter and
summer months. This control helps avoid condensation problems
in upper northern regions where indoor humidity is a problem
during the winter season.
NOTE: This control is not to be confused with a dehumidistat
used during the summer months to control high relative indoor
humidity.
Table 2 recommends humidity levels to avoid condensation.
Table 2 – Recommended Humidity Levels
OUTSIDE
TEMPERATURE
50F / 10C
32F / 0C
14F / –10C
–4F / –20C
–22F / –30C
DOUBLE–PANE
WINDOWS
55%
45%
35%
30%
25%
TRIPLE–PANE
WINDOWS
65%
55%
45%
45%
35%
CAUTION
ATTENTION
No light
OFF or remote controled
Amber light
LOW speed
Green ligh
HIGH speed
Blinking light
See User Manual
Sans lumière
Arrêté ou contrôlé
par contrôle mural
Lumière ambre
Basse vitesse
Lumière verte
Haute vitesse
Clignotant
Voir guide d’utilisation
Operation
Humidity Selector
Danger d’électrocution. Débranchez
toujours l’appareil avant d’entreprendre
des travaux d’entretien ou de réparation.
Unscrew both screws to open the electrical Dévisser les deux vis pour ouvrir le compartiment
compartment. To completely remove, detach électrique. Pour retirer complètement, le
from its retention wire inside.
détacher de son fil de rétention intérieur.
A98383
The Standard and Latent wall controls have 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/HRV is inoperative and the LED is
out.
2. With switch on LOW, ERV/HRV 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. With switch on INTERMITTENT, the ERV/HRV exchanges air with outside on low–speed blower, and unit
shuts down when control is satisfied. The ON LED is illuminated all the time, and AIR EXCHANGE LED is illuminated only when unit is running.
AVERTISSEMENT
Risk of electric shock. Before performing
any maintenance or servicing, always
disconnect the unit from its power source.
1 2
A07260
Fig. 11 - Integrated Control
Refer to table below to see how to operate the unit using its
integrated control.
PRESS ON PUSH
BUTTON
LED COLOR
Once
Amber
Twice
Green
Three Times
No Light
RESULTS
Unit is on Low
Speed
Unit is on High
Speed
Unit is OFF
If a problem occurs during the unit operation, its integrated control
LED (2) will blink. The color of the blinking light depends on the
type of error detected. Refer to Troubleshooting for further details.
NOTE:
The ERV/HRV may be controlled using the
Infinity/Evolution system control. The ERV/HRV may be
connected using either a NIM or a 4–Zone Damper Module. See
the appropriate instructions if using the NIM or a 4–Zone Damper
Module for connection instructions.
The Infinity/Evolution system control will simultaneously control
the ERV/HRV and the indoor blower.
Push Button Timers may be used and are connected to the
ERV/HRV. However, the Infinity/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.
5
OPERATING THE ERV/HRV WITH
THE INFINITY/EVOLUTION CONTROL
The ventilator has four settings in heating mode and three settings
in cooling mode.
Heating:
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.
DEHUM – will only turn on if humidity is 3% over setpoint.
The speed is determined by indoor humidity and outdoor
temperature.
Cooling:
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.
If the fan speed is set to Auto and the ventilator wants to run, the
fan speed will run at High continuous speed. Otherwise, the fan
will stay at the chosen continuous fan speed.
ACCESSORIES
20 Minute Timer
A push button timer can be used to override the wall control and
put the ERV/HRV into high speed for 20 minutes. Connect
switches in parallel and connect leads to ERV/HRV terminals I,
OC, and OL. See Fig. 12. Push button locations are ideal in special
activity areas, such as, bathroom, or kitchen, where high–speed
exhaust operation is needed for a short period of time.
NOTE: The 20 minute timer will not function properly unless
ERV/HRV wall control is applied and working correctly. Timing
function is internal to electronic circuit board, it is activated by a
momentary contact between OC and OL. The I connection is to
illuminate the push button. The maximum number of push button
timers that can be applied is 5.
60 Minute Adjustable Timer
A 60 minute adjustable timer can also be used to override wall
control and put HRV into high–speed operation for a select amount
of time. Connect timer in parallel with push button timers, or to
ERV/HRV terminals OC and OL. See Fig. 12.
The 60 minute timer will provide a minimum of 10 minutes, and a
maximum of 60 minutes of ventilation at high speed.
J3
THE WIRES FROM THE SWITCH
ELECTRONIC CONTROL
BOARD
9
8
7
6
OL 5
OC 4
I 3
BOOT SEQUENCE
The unit boot sequence is similar to a personal computer boot
sequence. Each time the unit is plugged after being unplugged, or
after a power failure, the unit will perform a 30–second booting
sequence before starting to operate. During the booting sequence,
the integrated control LED will light GREEN or AMBER for 5
seconds, and then will shut off for 2 seconds. After that, the LED
will light RED for the rest of the booting sequence. During this
RED light phase, the unit is checking and resetting the motorized
damper position.
Once the motorized damper position completely set, the RED light
turns off and the booting sequence is done.
NOTE: No command will be taken until the unit is fully booted.
YELLOW – INDICATOR, (J3–3)
BLACK – COMMON, (J3–4)
RED – SWITCH, (J3–5)
RED
BLACK
YELLOW
J1
1
4
7
2
5
8
3
6
9
(OPTIONAL)
60 MINUTE TIMER
(OPTIONAL)
PUSH BUTTON SWITCHES
(5 SWITCHES MAXIMUM)
ELECTRICAL CONNECTIONS
115–VAC Wiring
The ERV/HRV operates on 115VAC. It comes with a power cord
attached to unit and ready to plug into a fused outlet. Unit must be
grounded for proper operation.
All electrical connections must comply with National and Local
Electrical Codes, or other ordinances that might apply.
!
(OC)
BLACK – (J3- 4)
COMMON
TERMINAL
STRIP
(I)
YELLOW – (J3- 3)
INDICATOR
TERMINAL STRIP
RED – (J3- 5)
SWITCH
TERMINAL STRIP
WARNING
(OL)
BACK OF PUSH BUTTON SWITCH
A98386
ELECTRICAL SHOCK / FIRE HAZARD
Fig. 12 - Push Button Timer Wiring Layout
Failure to follow this warning could result in personal injury,
death and/or property damage.
Do not use an extension cord as a power source for operating
the ERV/HRV.
12VDC Wiring
The ERV/HRV circuit board, wall control, and accessories operate
on 12VDC. See Wall Control section, item Wiring and Fig. 5 and
10 for more information.
6
BALANCING ERV/HRV
Balancing intake and exhaust airflow is very important for proper
system operation and optimum performance when applying an
ERV/HRV. Unit balancing prevents a positive and/or negative
pressure within the home. Balancing the ERV/HRV is done by
applying magnehelic gauge and using the balancing dampers at the
fresh air intake and stale air exhaust ducts. See Fig. 13.
Fresh air flow
12
12
13
12
12
13
12 11
12 11
33 23
12 11
12 11
33 23
Balancing Procedure
Step 1 — Set the unit to high speed.
Make sure that the furnace/air handler blower is ON if the
installation is in any way connected to the ductwork of the cold air
return. If not, leave furnace/air handler blower OFF. If the outside
temperature is below 32_F (0_C), make sure the unit is not running
in defrost while balancing. (By waiting 10 minutes after plugging
the unit in, you are assured that the unit is not in a defrost cycle.)
Balancing
Chart
1
1
3
1
1
3
Before proceeding with balancing, all windows, doors, and
fireplace flues should be tightly closed. No exhaust systems such as
range top exhausts, dryer exhaust, fume hoods, bath or roof fans
should be in operation. The forced–air furnace (if used for
circulation) should be operating in continuous fan mode for normal
operating speed.
Exhaust air flow
Step 2 — Magnehelic gauge placement.
Place the magnehelic gauge on a level surface and adjust it to zero.
Step 3 — Connect tubing from gauge to EXHAUST air flow pressure taps.
Be sure to connect the tubes to their appropriate high/low fittings.
See Fig. 13. If the gauge drops below zero, reverse the tubing
connections.
NOTE: It is suggested to start with the exhaust air flow reading
because the exhaust has typically more restriction than the fresh air,
especially in cases of fully ducted installations or source point
ventilation. Place the magnehelic gauge upright and level. Record
equivalent AIRFLOW of the reading according to the balancing
chart.
See Detail A
DETAIL A
Step 4 — Move tubing to FRESH air flow
pressure taps.
Adjust the fresh air balancing damper until the fresh air flow is
approximately the same as the EXHAUST air flow. If fresh air
flow is less than exhaust air flow, then go back and adjust the
exhaust balancing damper to equal the fresh air flow. See Fig. 13.
Port with integrated
balancing damper
Top View
A07261
Fig. 13 - Balancing ERV/HRV
Airflow is determined by temporarily connecting a magnehelic
gauge to the pressure taps on ERV/HRV. See Fig. 14. Balancing
chart is located on unit door.
Step 5 — Secure both dampers thumb screw in
place with tape.
Step 6 — Record air flow information.
Write the required air flow information on a label and stick it near
the unit for future reference (date, maximum speed air flows, your
name, phone number and business address).
NOTE: The unit is considered balanced even if there is a
difference of 10 CFM (or 5 l/s or 17 m3/h) between the two air
flows.
Balancing Dampers
A98400
Balancing dampers (sometimes called butterfly dampers) are
located in fresh–air intake and stale–air exhaust of the ERV/HRV.
See Fig. 13. Insulating over these dampers is strongly
recommended after balancing is complete to prevent condensation
problems.
Fig. 14 - Magnehelic Gauge
If supply–air from outside is greater than exhaust–air from the
house, an imbalance can result over pressurizing the home. If
exhaust–air is greater than supply–air, combustion appliances may
backdraft, bringing exhaust fumes into the house. A balanced
condition will ensure optimum performance, provide satisfied
customers, and avoid expensive callbacks.
7
VENTILATION EVALUATION
115VAC is applied between orange and gray wires on Molex plug
(pins 1 and 6) and blower motor runs in high–speed operation.
CAUTION
!
Low–Speed Air Exchange
UNIT DAMAGE HAZARD
Failure to follow this caution may result in reduced unit
efficiency, capacity or unit life.
DO NOT use HRV during construction of a house or when
sanding drywall. This type of dust may damage system.
Tables 3 and 4 should be used to determine the required airflow for
a home. These guidelines are taken from ASHRAE 62.2–2004.
Table 3 – Ventilation Air Requirements, cfm
<1500
1501–3000
3001–4500
4501–6000
6001–7500
>7500
0–1
30
45
60
75
90
105
CARE AND MAINTENANCE
Door
Ventilator Sizing
FLOOR
AREA (ft2)
When low–speed air exchange occurs, K1 Relay is energized
which closes the contacts. K2 and K5 relays are de–energized. This
keeps low–speed contacts closed and high–speed contacts open on
K2 relay, and opens outdoor air damper. 120VAC is applied
between Red and Gray wires on Molex plug (pins 1 and 4) and
blower motor runs in low–speed operation.
2–3
45
60
75
90
105
120
BEDROOMS
4–5
6–7
60
75
75
90
90
105
105
120
120
135
135
150
>7
90
105
120
135
150
165
ERV/HRV door can be removed by unlatching brief case style
latches, then slide door to the right and remove it from hinges.
Door must be in place and secured shut for proper operation.
Filter
Filters in ERV/HRV are washable and should be cleaned every 3
months. Use a vacuum cleaner to remove heaviest portion of
accumulated dust, then wash in lukewarm water. Allow filter to
completely dry before reinstalling. A dirty air filter will cause
excessive strain on blower motor. Never operate unit without a
filter. Vacuum out debris.
In addition, regularly check and clean screens on exterior intake
and exhaust hoods when necessary.
!
Table 4 – Ventilation Air Requirements, L/s
FLOOR
AREA (m2)
<139
139.1–279
279.1–418
418.1–557
557.1–697
>697
BEDROOMS
2–3
4–5
21
28
28
35
35
42
42
50
50
57
57
64
0–1
14
21
28
35
42
50
6–7
35
42
50
57
64
71
UNIT COMPONENT DAMAGE HAZARD
>7
42
50
57
64
71
78
CONTROL BOARD OPERATION
Defrost
The ERV/HRV continually monitors the outside air temperature. If
the outside air is at or below 23F (–5C), the ERV/HRV will
initiate a defrost cycle by closing the outside air damper and
recirculating warm indoor air through the heat recovery core.
Table 5 – Defrost Schedule
UNIT
TYPE
23 to –17F
–5 to –27C
CAUTION
–17F and below
–27C and below
Frequency
Duration
Frequency
Duration
HRV
25 min.
8 min.
22 min.
10 min.
ERV
28 min.
9 min.
22 min.
10 min.
Failure to follow this caution may result in unit component
damage.
DO NOT clean filters in a dishwasher and DO NOT dry
them with a heating appliance or permanent damage will
result.
Blower Motor and Wheel
ERV/HRV blower motors are factory lubricated for life.
Lubricating bearings is not recommended. However, inspect and
clean any accumulated dirt and grease from blower motor and
wheel annually.
Cleaning the Core
ERV is equipped with a special energy recovery core which utilizes
a special membrane and allows transfer of sensible and latent
energy. The core should always be vacuumed only every 3 months
to remove dust and dirt that could prevent transfer of energy. See
Fig. 15 and 16.
Off and Intermittent/Off Mode
When ERV/HRV is Off, K1 relay is open, and K5 relay is
energized which closes outside air damper.
High–Speed Air Exchange
When high–speed air exchange occurs, K1 and K2 relays are
energized and K5 relay is de–energized. This opens low–speed
contacts, and closes high–speed contact on K2 relay. This also
opens contact on K5 relay which opens outside air damper. Then,
A05347
Fig. 15 - ERV Ports on Side (Bottom View)
8
TROUBLESHOOTING
NOTE: Reference Table 6 Troubleshooting Chart
This can be a quick guide in resolving unit problems. It is also
recommended to review and understand Wall Control Board
Operation and Care and Maintenance sections before continuing.
NOTE: If there is a short circuit or an open circuit at thermistor,
CPU will go into a 10 minute defrost cycle every 22 minutes.
Override Test
A05348
Fig. 16 - HRV Ports on Side (Bottom View)
NOTE: The core should only be serviced when outdoor
temperature is 60F to 75F (16C to 24C) and it is dry.
!
CAUTION
UNIT COMPONENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
DO NOT use water to clean core or damage will result. In
addition, before servicing or removing the core inspect the
edges to see if they appear soft (or slightly expanded). This
can be normal and due to moisture in the air. DO NOT
handle or service core until it is dry or air passages can
become damaged and/or closed.
WARNING
!
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.
!
If desired, the unit can be placed in override test using the
procedure below. Override takes priority over a defrost cycle. If
using override when outdoor air temperatures call for defrost, the
defrost cycle will be temporarily postponed until the override is
interrupted or completed.
High Speed
1. Disconnect ERV/HRV from 115VAC.
1. Unplug wall control wires at control module terminal block inside ERV/HRV.
2. Plug ERV/HRV back to 115VAC.
3. Attach a wire across J3–8 and J3–9 (B and G) on control module terminal block.
4. Close door, this will initiate a high–speed exchange.
Low Speed
1. Unplug ERV/HRV from 115VAC.
2. Disconnect wall control wires at control module terminal block
inside ERV/HRV.
3. Plug ERV/HRV back to 115VAC.
4. Connect a 3.0 K ohm resistor between B and G on control
module terminal block.
5. Close door, this will initiate a low–speed exchange.
Blower Speed Selection
Unit is factory set to the lowest and highest speed. Installer can
lower the high speed or increase the low speed, if required.
Connections can be changed at transformer location. See
Connection diagram, Fig. 17.
CAUTION
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care
and wear appropriate protective clothing and gloves when
handling parts.
9
Table 6 – Troubleshooting
If the unit does not work properly, reset the unit by unplugging it for one minute and then replug it. If it is still not working properly, refer to
table below.
If the integrated control LED of the unit is flashing, this means the unit sensors detected a problem. See the table below to know where
the problem occurs on the unit.
Error type
Action
Unit status
LED flashes GREEN
Thermistor error
Replace the entire port assembly
(fresh air from outside port)
Unit works but will defrost frequently
LED flashes AMBER
Damper error
Go to point 5
Unit does not work
LED flashes RED
• The door is open and • Close the door and press once on the
the unit is not unplugged
integrated control push button to reset
Unit does not work
the unit
• Exhaust motor error
• Go to 8 B, C, D, or E
Problems
1 The error code E1 is
displayed on Altitude or
Deco-Touch wall control
screen.
Possible causes
You should try this
• The wires may be in reverse position. • Ensure that the color coded wires have been connected to
their appropriate places.
• The wires may be broken.
• Inspect every wire and replace any that are damaged.
• The wires may have a bad connection. • Ensure the wires are correctly connected.
2 There is no outside
temperature displayed on
Altitude wall control screen
.
• The unit thermistor is defective (the
integrated control LED of the unit
must flash GREEN).
3 Altitude or Deco-Touch wall • The Altitude or Deco-Touch
control screen alternates
wall control may be defective.
between normal display
and E3.
4 Unit does not work.
• The fuse may be defective.
•
5 The damper actuator does •
not work.
6 The wall control does not
work.
•
•
•
•
NOTE: At its very start-up or after a power failure, it takes
some minutes before the outside temperature
appears on screen. The delay duration depends on
which operation mode the wall control is set. The
shortest delay is obtained when the wall control is
set on MIN or MAX in VENT Mode.
• Replace the unit thermistor.
• Replace the Altitude or Deco-Touch wall control.
• Check if fuse F1 (located on PCB) is blown. In that case,
replace fuse F1 as per product nameplate.
The circuit board may be defective. • Unplug the unit. Disconnect
the main control and the NO C NC I OC OL Y R G B
auxiliary control(s) (if need
be). Jump G and B terminals. VE0097
Plug the unit back and wait
about 10 seconds. If the motors run on high speed and the
damper opens, the circuit board is not defective.
The damper actuator or the integrated • Unplug the unit. Disconnect the main control and the
damper port mechanism may be auxiliary control(s) (if need be). Wait 10 seconds and plug
defective.
the unit back. Check if the damper opens. If not, use a
multimeter and check for 24 VAC on J12-1 and J12-2 (on
circuit board). If there is 24 VAC, replace the entire damper
assembly.
NOTE: It is normal to experience a small delay
(7-8 seconds) before detecting the 24 VAC signal
at starting-up. This signal will stay during
17-18 seconds before disappearing.
The circuit board may be defective. • If there is no 24 VAC, replace the circuit board.
The wires may be in reverse position. • Ensure that the color coded wires have been connected to
their appropriate places.
The wires may be broken.
• Inspect every wire and replace any that are damaged.
The wire in the wall OR
• Remove the wall control and test it right beside the unit
the wall control may be defective.
using another shorter wire.If the wall control works there,
change the wire. If it does not, change the wall control.
10
Table 6 – Troubleshooting (cont.)
Problems
Possible causes
You should try this
7 The Dehumidistat does not • The wires may be in reverse position. • Ensure that the color coded wires have been connected to
work OR the 20-minute
their appropriate places.
push-button timer does not • The Dehumidistat or push button may • Jump the OL and OC terminals.
NO C NC I OC OL Y R G B
work OR its indicator light
be defective.
If the unit switch to high
does not stay on.
speed,
remove
the
Dehumidistat or push button VE0098
and test it right beside the unit using another shorter wire.
If it works here, change the wire. If it does not, change the
Dehumidistat or push button.
8 A. The supply motor does
not work, but exhaust
motor works on both
high and low speeds.
B. The integrated control
LED flashes RED.
C. The integrated control
LED flashes RED;
exhaust motor does not
work on both high and
low speeds.
D. The integrated control
LED flashes RED;
exhaust motor does not
work on low speed but
works on high speed.
E. The integrated control
LED flashes RED;
exhaust motor does not
work on high speed but
works on low speed.
9 The defrost cycle does not
work (the fresh air duct is
frozen) OR the fresh air
distributed is very cold.
• The supply motor may be defective. • Plug supply motor to J5 connector and exhaust motor to J4
connector. If the integrated control LED flashes RED, the
supply motor is defective. If exhaust motor works, plug back
supply motor to J4 connector and exhaust motor to J5
connector, then check for supply motor capacitor validity.
• The supply motor capacitor or the
• Plug supply motor capacitor to J7 connector and exhaust
motor capacitor to J6 connector. If the integrated control
PCB may be defective.
LED flashes RED, the supply motor capacitor is defective.
If there is no change, the PCB is defective.
• The door is open and the unit is not • Put a magnet over the door switch or close the door and
unplugged.
press once on the integrated control push button to reset
the unit. Check both high and low speeds using integrated
push button.
• The exhaust motor may be defective. • Plug exhaust motor to J4 connector and supply motor to J5
connector. If supply motor works but exhaust motor does
not, exhaust motor is defective. If exhaust motor works, plug
back supply motor to J4 connector and exhaust motor to J5
connector, then check for exhaust motor capacitor validity.
• The exhaust motor capacitor may be • Plug exhaust motor capacitor to J6 connector and exhaust
defective.
motor capacitor to J7 connector. If exhaust motor works but
supply motor does not, the exhaust motor capacitor is
defective. If there is no change, check validity of transformer
or PCB.
• The transformer or the PCB may be • Move JU1 jumper from pins 2 and 3 to pins 1 and 2. Set the
defective.
unit on high speed (press 2 times on integrated push button,
the LED will light GREEN). If exhaust motor works, the
transformer is defective. If it still does not, change the PCB.
• The 18 µf low speed capacitor wires • Check both low speed capacitor wires connections.
may have a loose connection.
• The 18 µf low speed capacitor or
• Plug the RED wire from J9 connector to RED wire from
transformer. If it works, the 18 µf low speed capacitor is
the PCB may be defective.
defective. If it is not working, the PCB is defective.
• The connection between BLUE wire • Check BLUE wires connection.
from J9 connector to BLUE wire from
transformer may be loose.
• The transformer or the PCB may be • Move JU1 jumper from pins 2 and 3 to pins 1 and 2. Set the
unit on high speed (press 2 times on integrated push button,
defective.
the LED will light GREEN). If exhaust motor works, the
transformer is defective. If it still does not, change the PCB.
• Ice deposit may be hindering the • Remove the ice.
damper operation.
• The damper rod or the port damper • Inspect these parts and replace if necessary.
itself may be broken.
• The damper actuator or circuit board • See point 5.
may be defective.
10 The integrated control
• The 30-second boot sequence is not • See Boot Sequence.
push button does not work.
completed.
11
Table 7 – Temperature / Ohm Relationship
TEMP.
(F / C)
–9 / –23
–8 / –22
–6 / –21
–4 / –20
–2 / –19
–.4 / –18
1 / –17
3 / –16
5 / –15
7 / –14
9 / –13
10 / –12
12 / –11
14 / –10
16 / –9
18 / –8
19 / –7
21 / –6
23 / –5
25 / –4
27 / –3
28 / –2
30 / –1
32 / 0
34 / 1
36 / 2
37 / 3
39 / 4
41 / 5
43 / 6
45 / 7
RESISTANCE
(OHMS)
78330
74610
71100
67770
64570
61540
58680
55970
53410
50980
48680
46500
44430
42470
40570
38770
37060
35440
33900
32440
31050
29730
28480
27280
26130
25030
23990
23000
22050
21150
20300
TEMP.
(F / C)
46 / 8
48 / 9
50 / 10
52 / 11
54 / 12
55 / 13
57 / 14
59 / 15
61 / 16
63 / 17
64 / 18
66 / 19
68 / 20
70 / 21
72 / 22
73 / 23
75 / 24
77 / 25
79 / 26
81 / 27
82 / 28
84 / 29
86 / 30
88 / 31
90 / 32
91 / 33
93 / 34
95 / 35
97 / 36
99 / 37
100 / 38
12
RESISTANCE
(OHMS)
19480
18700
17960
17240
16560
15900
15280
14690
14120
13580
13060
12560
12090
11630
11200
10780
10380
10000
9632
9281
8944
8622
8313
8014
7728
7454
7192
6940
6699
6467
6245
Fig. 17 - ERV / HRV Wiring Diagram
A12507
G
BK
R
R
R
R
BK
BN
BN
BL
BL
Ref
1
2
1
1
2
3
1
2
3
2
1
J8
J9
MED HI
3 2 1
5 4 3 2 1
F1
W1
Low-Med select
Med-High select
Factory shipped
R
BL
R
GR
P
BK
R
BL
BL
BL
BK
BL
Low - Med (81)
Med (64) - High (106)
Low - High (106)
Ref 1 FAN SPEEDS (Voltage)
G
BK W
J10
4 321
See note 1 2 1
120 V, 60 Hz
J4
J6
J7
J5
FAN MOTORS SPEED SELECTION
SETTING
BK
Damper motor
M3
BK
J2
12
54321
12
J11
J12
J3
R1
Furnace blower interlock
J14-1 : NO
J14-2 : COM
J14-3 : nc
(optional; see notes 3, 5)
BK
BL
BN
G
GR
O
P
R
W
Y
nc
Override
switch
(optional; see
notes 3 & 4)
BKG R Y
Field wiring
remote control
(see notes 3 & 4)
t°
Defrost
temperature sensor
BLACK
BLUE
BROWN
GREEN
GREY
ORANGE
PURPLE
RED
WHITE
YELLOW
no connection
COLOR CODE
ELECTRONIC
ASSEMBLY A1
1 2 3 4 5
BK
J1
DAMPER
ELECTRONIC ASSEMBLY
10
9
8
J13 7
6
5
ICP
4
3
2
1
J14
21
A2
NOTES
1. Use specified UL listed/CSA Certified line fuse.
2. If any of the original wire, as supplied, must
be replaced, use the same equivalent wire.
3. Field wiring must comply with applicable
codes, ordinances and regulations.
4. Remote controls (class 2 circuit) available,
see instruction manual.
5. Furnace fan circuit must be class 2 circuit only.
S1
BK
Door interlock switch
T1
(magnetically
actuated
BK 120 V
reed switch)
24 V
O
BL 106 V
class 2
81 V
P
O
BN 71 V
GR 64 V
W
W
57
V
9.5
V
R
class 2
W
neutral
BL
BL
Y
R
BK
Y
nc
P
nc
BN
nc
GR
nc
R
Line voltage factory wiring
Class 2 low voltage factory wiring
Class 2 low voltage field wiring
Supply fan
M2
motor
Supply fan
motor C2
capacitor
Exhaust fan
motor C1
capacitor
Exhaust fan
motor M1
G
Low speed
C1
capacitor
Critical characteristic.
WIRING DIAGRAM
JU1
13
BK 120 V
BL 106 V
P 81 V
BN 71 V
GR 64 V
R 57 V
W
neutral
BK
Low speed
capacitor
R 57 V
W
GR 64 V
BK
P 81 V
BN 71 V
BL 106 V
BK 120 V
Ref
1
Y
9.5 V
class 2
Y
O
24 V
class 2
O
MED
BL
LO
R
J8-5
J8-1
J8-2
J8-4
J9-1
J9-2
J9-3
J9-4
F1
K2
K3
K1
K5
K4
K2
JU1
HI MED
1 2 3
CPU
J10-2
120 V, 60 Hz
Line
J11-2
J11-1
J12-5
J12-4
K4 J12-3
J12-2
J12-1
K3
K1
LOGIC DIAGRAM
J5-2
J4-2
J2-5
J2-4
J2-3
J2-2
J2-1
J6-2
J6-1
Damper motor
J14-4
J14-5
J14-6
J14-7
J14-8
J14-9
J14-10
J14-2
J14-1
J14-3
Override
switch
(optional; see
notes 3, 4)
Field wiring
remote
control (see
notes 3, 4)
Furnace
blower
interlock
(optional; see
notes 3, 5)
Door interlock switch
J3-2
J3-1
A2
Supply fan motor
capacitor
J4-1
J4-3
Supply fan motor
Exhaust fan motor
capacitor
J7-2
J7-1
K5
J10-1
Exhaust fan motor
J5-1
J5-3
A1
120V, 60Hz
Neutral
Energy Star (Canada)
S
S
S
S
These products earned the
ENERGY STAR® by meeting strict
energy efficiency guidelines set by
Natural Resources Canada and
the US EPA. They meet ENERGY
STAR requirements only when
used in Canada.
ERVXXSVB1100
ERVXXSHB1100
HRVXXSVB1100
HRVXXSHB1100
Copyright 2012 CAC / BDP D 7310 W. Morris St. D Indianapolis, IN 46231
Edition Date: 11/12
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
14
Catalog No: IM–ERVHRVSHBSVB–01
Replaces: NEW