ERVBBSVB1100, ERVBBSHB1100

HRVBBSVB1100, HRVBBSHB1100

ENERGY / HEAT RECOVERY VENTILATOR

Installation Instructions

NOTE: Read the entire instruction manual before starting the installation.

TABLE OF CONTENTS

PAGE

SAFETY CONSIDERATIONS

INTRODUCTION

. . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

INSTALLATION CONSIDERATIONS . . . . . . . . . . . . . . . . . . .

COMPONENT DESCRIPTION

UNIT INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2

3

4 WALL CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OPERATING THE ERV/HRV WITH

THE EVOLUTION CONTROL . . . . . . . . . . . . . . . . . . . . . . . .

ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . .

ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6

6

6

1

1

2

BALANCING ERV/HRV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

VENTILATION EVALUATION . . . . . . . . . . . . . . . . . . . . . . . .

7

8

CONTROL BOARD OPERATION . . . . . . . . . . . . . . . . . . . . . .

CARE AND MAINTENANCE

TROUBLESHOOTING

. . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8

8

9

1. Fresh air to building port

2. Exhaust air from building port

3. Fresh air from outside port

4. Exhaust air to outside port

Fig. 1 -- ERV/HRV Unit (Top Port)

A08103

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

A05330

FRESH AIR

TO BUILDING

STALE AIR

TO OUTSIDE

Fig. 3 -- ERV/HRV Airflow During Air Exchange

(Bottom view with access door removed)

A07460

Fig. 2 -- ERV/HRV Unit (Side Port)

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.

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

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 ERVBBSHA (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. Energy recovery core is a cross--flow type. The core transfers heat 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. Stale air return from building connected to return--air duct system.

ERV ports on side (bottom view)

4 5 4

3 8

2 1

7 6

A05263

Fig. 4 -- Conventional Horizontal Unit

See Fig. 5 for terminal connector block for wiring wall and timer controls.

WALL CONTROL

W ARNING

Ri s k of electric s hoc k. Be fo re per fo rmin g an y maintenance or dis connect the unit fr

s ervici ng, al wa ys om it s p ow er s our ce .

A VER TI SS EMENT

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

Un s cr ew both s cr ew s to open the electrical com par tment . To com plete ly remo ve , detac h

fr om it s retention wire in s ide.

AT TENTION

Dé viss er le s deux vi s p our ouvrir le com par timent

électrique . P our retirer com plètement , le détacher de s on fil de rétention intérieur .

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 mura

Lumière ambre Basse vitesse

Lumière verte Haute vitesse

Clignotant Voir guide d’utilisation l

Terminal

Connector

Fig. 5 -- Control Connector

BLACK

GREEN

RED

YELLOW

CONTROL

CONNECTOR

A B

A07418

2

!

UNIT INSTALLATION

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.

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.

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 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.

!

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 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 for ventilation capacities.

Forced--Air Application

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.

A

NOTE: A + B = Not less than 10 ft / 3 m

3 ft / .9 m MIN

FURNACE

B

ERV

INSULATED DUCT CONNECTING

FRESH AIR & EXHAUST TO

OUTSIDE

NOTE: Supply & exhaust ducts have internal balancing dampers that must be adjusted.

INLET HOOD

REAR

6 ft / 1.8 m

EXHAUST HOOD

18" / 457 mm

GROUND LEVEL

Fig. 7 -- Exhaust Ventilation

3

A07282

Connect Ducts to ERV/HRV

!

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.

STALE-AIR

RETURN

Condensate Drain

(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.

FRESH-AIR

SUPPLY

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.

A99268

Fig. 9 -- Condensate Drain With Loop Trap (HRV Only)

WALL CONTROL

Types

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)

MODE

Off

Low

Intermittent

Table 1 – Basic Control

OPERATION

DAMPER

POSITION

Closed to outside Off

Air exchange with outside

Air exchange with outside

Open to outside

Open to outside

FAN

SPEED

Off

Low

Low

High

Air exchange with outside

Open to outside High

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

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.

OneTouch Control

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 ERV;s, 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 G B

A98383

Fig. 10 -- Typical Wall Control

Operation

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 high--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.

Humidity Selector

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%

WARNING

Risk of electric shock. Before performing any maintenance or servicing, always disconnect the unit from its power source.

CAUTION

AVERTISSEMENT

Danger d’électrocution. Débranchez toujours l’appareil avant d’entreprendre des travaux d’entretien ou de réparation.

ATTENTION compartment. To completely remove, detach

from its retention wire inside.

électrique. Pour retirer complètement, le détacher de son fil de rétention intérieur.

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

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 RESULTS

Once

Twice

Three Times

Amber

Green

No Light

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 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 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 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 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.

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.

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.

!

WARNING

ELECTRICAL SHOCK / FIRE HAZARD

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.

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

ELECTRONIC CONTROL

BOARD

OL

OC

I

9

8

7

6

5

4

3

THE WIRES FROM THE SWITCH

YELLOW – INDICATOR, (J3--3)

BLACK – COMMON, (J3--4)

RED – SWITCH, (J3--5)

RED

BLACK

YELLOW

J1

1

2

3

4

5

6

7

8

9

(OPTIONAL)

60 MINUTE TIMER (OPTIONAL)

PUSH BUTTON SWITCHES

(5 SWITCHES MAXIMUM)

(OC)

BLACK – (J3- 4)

COMMON

TERMINAL

STRIP

(I)

YELLOW – (J3- 3)

INDICATOR

TERMINAL STRIP

RED – (J3- 5)

SWITCH

TERMINAL STRIP

(OL)

BACK OF PUSH BUTTON SWITCH

Fig. 12 -- Push Button Timer Wiring Layout

A98386

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.)

Balancing

Chart

See Detail A

1 12 12 11

1 12 12 11

3 13 33 23

1 12 12 11

1 12 12 11

3 13 33 23

DETAIL A

Fresh air flow

Exhaust air flow

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.

A98400

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.

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.

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.)

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 EX-

HAUST 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 AIR FLOW of the reading according to the balancing chart.

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.)

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 m 3 /h) between the two air flows.

Balancing Dampers

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.

7

VENTILATION EVALUATION

!

CAUTION

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.

Ventilator Sizing

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

FLOOR

AREA (ft 2 )

<1500

1501---3000

3001---4500

4501---6000

6001---7500

>7500

0---1

30

45

60

75

90

105

2---3

45

60

75

90

105

120

BEDROOMS

4---5 6---7

60

75

75

90

90

105

120

135

105

120

135

150

>7

90

105

120

135

150

165

Table 4 – Ventilation Air Requirements, L/s

FLOOR

AREA (m 2 )

<139

139.1---279

279.1---418

418.1---557

557.1---697

>697

0---1

14

21

28

35

42

50

2---3

21

28

35

42

50

57

BEDROOMS

4---5

28

35

42

50

57

64

6---7

35

42

50

57

64

71

>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. This happens every 32 minutes with a 6 minute defrost cycle. During this process, core is defrosted without the use of electric strip heat.

At 5°F (--15°C), unit will defrost for 6 minutes every 32 minutes.

At --17°F (--27°C), the unit will sense a need to defrost every 20 minutes with a 6 minute cycle. See the Troubleshooting section for a control logic explanation.

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,

115VAC is applied between orange and gray wires on Molex plug

(pins 1 and 6) and blower motor runs in high--speed operation.

Low--Speed Air Exchange

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.

CARE AND MAINTENANCE

Door

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.

!

CAUTION

UNIT COMPONENT DAMAGE HAZARD

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.)

Fig. 15 -- ERV Ports on Side (Bottom View)

A05347

Fig. 16 -- HRV Ports on Side (Bottom View)

A05348

8

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.

!

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Before installing or servicing system, always turn off main power to system. There may be more than 1 disconnect switch.

!

WARNING

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.

TROUBLESHOOTING

NOTE: Reference Table 5 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 5 minute defrost cycle every 20 minutes. This feature is not there on older board versions with 3 pin jumpers.

Override Test

To use override test function, a thermistor must be connected to the control board. Unit must not be in defrost mode during an override test.

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

Three--speed blowers are factory connected to electronic control board on HIGH-- and LOW--speed taps of blowers. Installer can easily change low--speed tap to medium--speed tap so electronic control will select between high and medium speed. Connections can be changed at transformer location.

9

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 on the unit the problem occurs.

Table 5 – Troubleshooting

LED flashes GREEN.

Thermistor error.

Reference Table 6 for proper temperature vs. resistance relationship. If thermistor is defective, replace the entire port assembly (fresh air from outside port).

LED flashes RED.

The door is open and the unit is not unplugged.

Exhaust motor error.

LED flashes AMBER.

Problem:

Damper error.

Possible causes:

1. Unit does not work.

S The circuit board may be defective.

Close the door and press once on the integrated control push button to reset the unit.

Go to Problem 5 below.

Go to Problem 6 below.

You should try this:

S Unplug the unit. Disconnect the main control and the optional control(s) (if need be). Jump G and B terminals. 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.

NO C NC I OC OL Y R G B

2. The damper actuator does not work.

3. The wall control does not work OR its indicator flashes.

4. The dehumidistat does not work OR the 20--minute. push-button timer does not work OR its indicator light does not stay on.

5. The supply and/or exhaust motor do not work.

6. The defrost cycle does not work (the fresh air duct is frozen OR the fresh air distributed is very cold. (See Table 7 for

Defrost Cycle Timing.)

7. The integrated control push button does not work.

S The damper actuator or the integrated damper port mechanism may be defective.

S The circuit board may be defective.

S

The wires may be in reverse position.

S The wires may be broken.

S The wire in the wall OR the wall.

S The wires may be in reverse position.

S The dehumidified or push button may be defective.

S The circuit board may be defective.

S

The motor(s) may be defective.

S

Ice deposits may be hindering the damper operation.

S The damper rod or the port damper itself may be broken.

S The damper actuator or circuit board may be defective.

S The 30 --second boot sequence is not completed.

S Unplug the unit. Disconnect the main control and the optional controls(s) (if need be).Wait 10 seconds and plug the unit back. Check if the damper opens. If not, use a multimeter and check for 24VAC on J12--1 and J12--2 (in electrical compartment). If there is 24VAC, replace the entire port assembly.

NOTE: It is normal to experience a small delay (7--8 seconds) before detecting the 24VAC signal at starting--up. This signal will stay during 17--18 seconds before disappearing.

S If there is no 24VAC, replace the circuit board.

S

Ensure that the color coded wires have been connected to their work OR its indicator flashes. appropriate places.

S Inspect every wire and replace any that are damaged.

S Remove the wall control and test it right beside the unit using another control may be defective. shorter wire. If the wall control works there, change the wire. If it does not, change the wall control.

S Ensure that the color coded wires have been connected to their appropriate places.

S Jump the OL and OC terminals. If the unit switch to high speed, remove the dehumidistat or push button and test it right beside the unit using another shorter wire. If it works here, change the wire. If it doesn’t, change the dehumidistat or the push button.

NO C NC I OC OL Y R G B

S Press on the integrated control push button until the unit turn on low speed (the

LED will light AMBER). Using a multimeter, check the voltage on J4--1 and

J4--2 (for supply motor), and on J5--1 and J5--2 (for exhaust motor). The reading must be ± 68VAC. Then set the unit on high speed by pressing on the integrated control 1 more time (the LED will light GREEN).Using a multimeter, check the voltage on J4--1 and J4--2 (for supply motor), and on J5--1 and J5--2 (for exhaust motor). The reading must be ± 120VAC. If all the readings correspond to the right voltage values, the circuit board is not defective. If one or both readings are different, change the circuit board.

S

Using a multimeter, check the ohms value on each motor connectors. Black motors values: For BLUE and BLACK motor wires, the right value is ± 55 ohms.

For BLUE and BROWN motor wires, the right value is ± 35 ohms. For BROWN and BLACK motor wires, the right value is ± 89 ohms. Aluminum motors values:

For BLUE and BLACK motor wires, the right value is ± 51 ohms. For BLUE and

BROWN motor wires, the right value is ± 47 ohms. For BROWN and BLACK motor wires, the right value is ± 98 ohms. If he ohms values are the same, the motor is not defective. Replace the motor capacitor.

S

Remove the ice.

S Inspect these parts and replace if necessary.

S See Problem 2.

S See Boot Sequence.

10

Table 6 – Temperature / Ohm Relationship

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

63 / 17

64 / 18

66 / 19

68 / 20

70 / 21

72 / 22

73 / 23

75 / 24

77 / 25

48 / 9

50 / 10

52 / 11

54 / 12

55 / 13

57 / 14

59 / 15

61 / 16

34 / 1

36 / 2

37 / 3

39 / 4

41 / 5

43 / 6

45 / 7

46 / 8

18 / ---8

19 / ---7

21 / ---6

23 / ---5

25 / ---4

27 / ---3

28 / ---2

30 / ---1

32 / 0

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

9632

9281

8944

8622

8313

8014

7728

7454

13580

13060

12560

12090

11630

11200

10780

10380

10000

7192

6940

6699

6467

6245

18700

17960

17240

16560

15900

15280

14690

14120

26130

25030

23990

23000

22050

21150

20300

19480

RESISTANCE (OHMS)

78330

74610

71100

67770

64570

61540

58680

38770

37060

35440

33900

32440

31050

29730

28480

27280

55970

53410

50980

48680

46500

44430

42470

40570

Outside Temp

°F / °C

23 to ---17°F

---5 to ---27°C

---17°F and less

---27°C and less

Outside Temp

°F / °C

23 to ---17°F

---5 to ---27°C

---17°F and less

---27°C and less

Table 7 – Defrost Cycle

HRV DEFROST CYCLES

Defrosting

(minutes)

Operation time (min.) between each defrost cycle

8 25

10 22

ERV DEFROST CYCLES

Defrosting

(minutes)

Operation time (min.) between each defrost cycle

9 28

10 22

11

CONNECTION DIAGRAM

1. : USE SPECIFIED UL LISTED/CSA

CERTIFIED LINE FUSE. Type 3AG, Littelfuse no

312003.

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 available.

See instruction manual. (class 2 circuit)

5. Furnace fan circuit must be class 2 circuit only.

Exhaust fan motor

M1

Exhaust fan motor capacitor

C1

Supply fan motor capacitor

C2

Supply fan motor M2

GRN

GRN

Ref

1

BLK

BLU

BRN

BLK

BLK

BLK

BLK

BLK

BLU

BRN

COLOR CODE

BLK BLACK

BLU BLUE

BRN BROWN

GRN GREEN

GRY GRY

ORG ORANGE

RED RED

WHT WHITE

YEL YELLOW

Line voltage factory wiring

Class 2 low voltage factory wiring

Class 2 low voltage field wiring

DAMPER ELECTRONIC

ASSEMBLY

Damper motor M3

BLU

RED

PRP

ORG

GRY

(6)

120V

T1

BLK

BLU

PRP

ORG

GRY

RED

WHT

106V

81V

71V

64V

57V neutral

BLU

RED nc nc nc

ORG

24V class 2

ORG

9.5V

YEL class 2

YEL

1

2

3

J5

2

1

J7

J8

5 4 3 2 1

3 2 1

MED HI

BLK

BLK

S1

Door interlock switch

(magnetically actuated reed switch)

J2

J3

1 2

5 4 3 2 1

A2

2 1

J1

BLK

1 2

J11

J12

1 2 3 4 5

ICP

J13

4

3

6

5

10

9

8

7

2

1

J14

J9

2

1

J6

1

2

3

J4

See note 1

4 3 2 1

2 1

F1 J10

ELECTRONIC ASSEMBLY

A1 t o

WHT

BLK

R1

Defrost temperature sensor

Field wiring remote control

(see notes 3, 4)

Furnace blower interlock

J14-1 : NO

J14-2 : COM

J14-3 : NC

(optional; see notes 3, 5)

120V, 60Hz

W1

GRN

K5 K2 K3 K1

0 0 0 0

1 0 1 1

1 1 1 1

1 1 1 0

1 1 1 0

MODE

OFF

Exchange low speed

Exchange high speed

Circulation high speed

Defrost

Fig. 17 -- ERV / HRV Wiring Diagram

M1 "Supply"

OFF

LO

HI

HI

HI

M2 - "Exhaust"

OFF

LO

HI

OFF

OFF

DAMPER

Closed

Opened

Opened

Closed

Closed

A10001

12

Ref

1

BLK 120V

BLU 106V

RED 57V

PRP

81V

ORG 71V

GRY 64V

WHT

LOGIC DIAGRAM

MED

LO nc nc nc

120V, 60Hz

Line

J9-1

J9-2

J9-3

J9-4

J10-2

HI MED

1 2 3

JU1

F1

K2

K1

K3

A1

J5-1

J5-3

J7-2

J7-1

J4-1

J4-3

J6-2

J6-1

Exhaust fan motor

Exhaust fan motor capacitor

Supply fan motor

Supply fan motor capacitor

120V, 60Hz

Neutral

J10-1

J5-2

J4-2

BLK

BLU

PRP

ORG

GRY

RED

WHT

120V

106V

81V

ORG

24V class 2

ORG

71V

64V

YEL

57V neutral

9.5V class 2

(6)

YEL

J8-1

J8-2

J8-4

J8-5

CPU

K2

K4

K5

K1

K3

K4

J12-5

J12-4

J12-3

J12-2

J12-1

J11-2

J11-1

Fig. 18 -- ERV / HRV Wiring Diagram

J2-5

J2-4

J2-3

J2-2

J2-1

A2

J3-2

J3-1

Damper motor

Door interlock switch

K5

J14-3

J14-1

J14-2

J14-4

J14-5

J14-6

J14-7

J14-8

J14-9

J14-10

Furnace blower interlock

(optional; see notes 3, 5)

Override switch

(optional; see notes 3, 4)

Field wiring remote control

(see notes 3, 4)

A10002

13

Energy Star (Canada)

S ERVBBSVB1100

S ERVBBSHB1100

S HRVBBSVB1100

S HRVBBSHB1100

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.

E

2010 Bryant Heating & Cooling Systems D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A.

Edition Date: 05/10

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

14

Catalog No. IIERVHRV---03

Replaces: IIERVHRV--- 64--- 2