Maytag_Ventilation_Hood

TableofContents(cont???d)

AboutthisManual

This manual uses the following symbols to emphasize particular information:

010 ! WARNING

Identifies an instruction which, if not followed, might cause serious personal injuries including possibility of death.

CAUTION

Denotes an instruction which, if not followed, may severely damage the unit and/or its components.

NOTE: Indicates supplementary information needed to fully complete an instruction.

1.0Service(cont???d)

1.2 PARTS ORDERING CHART

* Item 26 not shown.

Please take note that parts not listed are not available; those parts require assembly knowledge that only manufacturer can guarantee.

TO ORDER PARTS: Contact your local distributor

1.3 Technical Support (for assistance)

For assistance, call on week days, 8:00 AM to 4:30 PM (Cental Standard Time).

Technical Support Department

tel: 1-866-2MAYTAG

2.0Sizing

These are the two most common methods used to evaluate the ventilation needs of a house:

CSA F326 and Canadian Building Code:

??? Low speed: 40-60% of high speed

ASHRAE Standard 62-2001:

??? 0.35 air change per hour

Refer to ventilation code of your area to determine which method to use.

Example:

Second floor

Main floor

Basement

1320 ft2

VH0021A

4.0TechnicalData

4.1 AIR DISTRIBUTION (NORMAL OPERATION)

Applicable to all model numbers.

4.2 AIR DISTRIBUTION (DEFROST MODE)

Defrost Mode 1

Applicable to model numbers:

??? HRV-150

??? HRV-210

Defrost Mode 2

Applicable to model numbers:

For defrost cycles tables, refer to Section 9.0, Wiring Diagram.

4.0TechnicalData(cont???d)

4.3PERFORMANCE CHARTS

MODEL NUMBER: ERV-150

Electrical requirements: 120 volts, 1.3 Amps

Exhaust Air Transfer Ratio: 0.06

VENTILATION PERFORMANCE

Note: Unit operating at maximum speed.

ENERGY PERFORMANCE

VG0041

225

200

175

150

125

100

MODEL NUMBER: ERV-210

Electrical requirements: 120 volts, 1.9 Amps

Exhaust Air Transfer Ratio: 0.06

VENTILATION PERFORMANCE

Note: Unit operating at maximum speed.

ENERGY PERFORMANCE

4.0TechnicalData(cont???d)

4.3PERFORMANCE CHARTS (CONT???D)

MODEL NUMBER: HRV-150

Electrical requirements: 120 volts, 1.3 Amps

Exhaust Air Transfer Ratio: 0.05

VENTILATION PERFORMANCE

Note: Unit operating at maximum speed.

ENERGY PERFORMANCE

VG0039

225

200

175

150

125

100

MODEL NUMBER: HRV-210

Electrical requirements: 120 volts, 1.9 Amps

Exhaust Air Transfer Ratio: 0.042

VENTILATION PERFORMANCE

Note: Unit operating at maximum speed.

ENERGY PERFORMANCE

5.0TypicalInstallation

There are three (3) common installation methods.

5.1FULLY DUCTED SYSTEM

(Primarily for homes with radiant hot water or electric baseboard heating. See figure 1.)

Moist, stale air is exhausted from the high humidity areas in the home, such as bathrooms, kitchen and laundry room. Fresh air is supplied to bedrooms and principal living areas.

The use of bathroom fans and a range hood is suggested to better exhaust stale air.

Homes with more than one level require at least one exhaust register at the highest level.

5.2EXHAUST DUCTED SYSTEM (SOURCE POINT VENTILATION)

(For homes with forced air heating. See figure 2.)

Moist, stale air is exhausted from the high humidity areas in the home, such as bathrooms, kitchen and laundry room. Fresh air is supplied to the cold air return or the supply duct of the furnace.

The use of bathroom fans and a range hood is suggested to better exhaust stale air.

5.3SIMPLIFIED (VOLUME VENTILATION)

(For homes with forced air heating. See figure 3 or 4.)

Fresh air and exhaust air flow through the furnace ducts wich simplifies the installation. The use of bathroom fans and a range hood is suggested to better exhaust stale air.

NOTE: For the installation type shown in figure 4, furnace blower should be running when the unit is in operation.

6.0Installation

INSPECT THE CONTENTS OF THE BOX

???Inspect the exterior of the unit for shipping damage. Ensure that there is no damage to the door, door latches, door hinges, dampers, duct collars, cabinet, etc.

???Inspect the interior of the unit for damage. Ensure that the fan motor assembly, recovery core, insulation, dampers, damper actuator and drain pan are all intact.

???If the unit was damaged during shipping, contact your local distributor. (Claim must be made within 24 hours after delivery.)

???Use checklist included with the unit to ensure that no parts are missing.

6.1ADJUSTING THE DAMPER ROD (FOR ERVS INSTALLED IN WARM REGIONS)

NOTE: Before attempting to change the position of the damper

CAUTION

This is a delicate operation: to avoid injury proceed carefully and use the appropriate tools.

6.2LOCATING AND MOUNTING THE UNIT

Choose an appropriate location for the unit:

???Within an area of the house where the temperature is above 10??C / 50??F (basement, attic, furnace room, laundry room, etc.).

???Away from living areas (dining room, living room, bedroom), if possible.

???So as to provide easy access to the interior cabinet and to the control panel on the right hand side of the unit.

???Close to an exterior wall, so as to limit the length of the insulated flexible duct to and from the unit.

???Away from hot chimneys, electrical panel and other fire haz-

ards.

CAUTION

Make sure the unit is level.

???Allow for a power source (110 V standard outlet).

Hang the unit to ceiling joists with the 4 chains and springs provided (see figures 6 and 7).

figure 7

VD0038

6.0Installation(cont???d)

6.3PLANNING OF THE DUCTWORK

a)Follow the instructions in Section 6.4 below to determine the appropriate duct diameters for your system.

b)Keep it simple. Plan for a minimum number of bends and joints. Keep the length of insulated duct to a minimum.

c)Do not use wall cavities as ducts. Do not use branch lines smaller than 4??? (102 mm) ??.

d)Do not ventilate crawl spaces or cold rooms. Do not attempt to recover the exhaust air from a dryer or a range hood. This would cause clogging of the recovery module. Use sheet metal for the kitchen exhaust duct.

e)Be sure to plan for at least one exhaust register on the highest lived-in level of the house if it has 2 floors or more.

6.4CALCULATING THE DUCT SIZE

Use the table below to ensure that the ducts you intend to install will be carrying air flows at or under the recommended values. Avoid installing ducts that will have to carry air flows near the maximum values and never install a duct if its air flow exceeds the maximum value.

NOTE: Examples 6.4.1 and 6.4.2 use imperial measures. The same calculation applies to metric measures.

end branches

5????? 70 cfm

main branch 6????? 140 cfm

140 cfm

VI0003

figure 8

6.4.1Example of calculation:

Problem: My installation requires two exhaust registers (one for the kitchen, one for the bathroom). I will connect these registers to a main duct which will connect to the unit (high speed performance value of 140 cfm). What size of duct should I use for the main exhaust duct and for the two end branches leading to the registers? (See figure 8.)

Solution: Simplified method. (For a more detailed method of calculating duct size refer to the ASHRAE or HRAI HANDBOOK).

Main duct: Table above indicates a 6??? ?? duct: recommended air flow: 120 cfm; maximum air flow: 180 cfm. The high speed air flow of 140 cfm is close enough to the recommended value (120) and far enough away from the maximum value (180). Therefore a 6????? duct or larger is an appropriate choice for the main exhaust duct.

End branches: Each end branch will have to transport an air flow of 70 cfm (140 divided by 2). Table

above indicates a 5????? duct: recommended air flow: 75 cfm; maximum air flow: 110 cfm. The high speed air flow of 70 cfm is close enough to the recommended value (75) and far enough away from the maximum value (110). Therefore a 5????? duct or larger is an appropriate choice for the 2 end branches.

NOTE: A 4????? duct would have been too small because the maximum acceptable value for a 4????? duct is 60 cfm.

6.0Installation(cont???d)

6.4CALCULATING THE DUCT SIZE (CONT???D)

6.4.2Example of a design for a fully ducted system for a unit having a high speed performance of 222 cfm (See figure 9).

figure 9

6.5INSTALLING THE DUCTWORK AND REGISTERS

010 ! WARNING

Never install a stale air exhaust register in a room where a combustion device is, such as a gas furnace, a gas water heater or a fireplace.

6.5.1Fully Ducted System (as illustrated in Section 5.1)

Stale air exhaust ductwork:

???Install registers in areas where contaminants are produced: kitchen, bathrooms, laundry room, etc.

???Install registers 6 to 12 inches (152 to 305 mm) from the ceiling on an interior wall OR install them in the ceiling.

???Install the kitchen register at least 4 feet (1.2 m) from the range top.

???If possible, measure the velocity of the air flowing through the registers. If the velocity is high- er than 400 ft/min. (122 m/min), then the register type is too small. Replace with a larger one.

Fresh air distribution ductwork:

???Install registers in bedrooms, dining room, living room and basement.

???Install registers either in the ceiling or high on the walls with air flow directed towards the ceiling. (The cooler air will then cross the upper part of the room, and mix with room air before descending to occupant level.)

???If a register must be floor installed, direct the air flow up the wall.

6.0Installation(cont???d)

6.5Installing the Ductwork and Registers (cont???d)

6.5.2Exhaust Ducted System (Source Point Ventilation) (as illustrated in Section 5.2)

Stale air exhaust ductwork: (same as for Fully Ducted System, described on page 15)

Fresh air distribution:

010 ! WARNING

When performing duct connection to the furnace, installation must be done in accordance with all applicable codes and standards. Please refer to your local building code.

CAUTION

When performing connection to the furnace supply duct, this duct must be sized to support the additional airflow produced by the HRV/ERV. Also, use a steel duct with a backdraft damper to pre- vent the risk of overheating the HRV/ERV.

There are two methods for connecting the unit to the furnace:

Method 1: supply side connection

???Cut an opening into the furnace supply duct at least 18 inches (0.5 m) from the furnace.

???Connect this opening to the fresh air distribution port of the HRV/ERV (use steel duct, see figure 10).

???Make sure that the HRV/ERV duct forms an elbow inside the furnace ductwork.

???If desired, interlock (synchronize) the furnace blower operation with the HRV/ERV operation.

(See Section 8.4).

Steel duct with backdraft damper

VD0040

figure 10

minimum 18??? (0.5 m)

Method 2: return side connection

???Cut an opening into the furnace return duct not less than 10 feet (3.1 m) from the furnace (A+B).

???Connect this opening to the fresh air distribution port of the HRV/ERV (see figure 11).

NOTE: For Method 2, it is not essential that the furnace blower runs when the HRV/ERV is in operation,

but we recommend it. If desired, synchronize the VD0041 furnace blower operation (see Section 8.4).

A+B= not less than 10??? (3.1 m)

figure 11

6.0Installation(cont???d)

6.5Installing the Ductwork and Registers (cont???d)

6.5.3Simplified installation (Volume Ventilation) (as illustrated in Section 5.3)

010 ! WARNING

When performing duct connection to the furnace, installation must be done in accordance with all applicable codes and standards. Please refer to your local building code.

CAUTION

When performing connection to the furnace ducts (Method 1), these ducts must be sized to support the additional airflow produced by the HRV/ERV. Also, the supply duct must be a steel duct with a backdraft damper to prevent the risk of overheating HRV/ERV.

There are two methods (figures 12 and 13) for connecting the unit to the furnace:

Steel duct with backdraft damper

figure 12

Stale air intake:

???Cut an opening into the furnace return duct (not less than 10 feet (3.1 m) from the furnace (A+B)).

???Connect this opening to the stale air intake port on the HRV/ERV as shown .

CAUTION

If using Method 2, make sure the furnace blower operation is synchronized with the HRV/ERV operation! See Section 8.4.

Fresh air distribution: (same instructions as for Method 1 or Method 2, Section 6.5.2). For method 2 (return-return) make sure there is a distance of at least 3 feet (0.9 m) between the 2 connections to the furnace.

NOTE: For Method 1, it is not essential to synchronize the furnace blower operation with the HRV/ERV operation, but we recommend it.

6.0Installation(cont???d)

6.6CONNECTING DUCTS TO THE UNIT

Insulated flexible duct

Use the following procedure for connecting the insulated flexible duct to the ports on the unit (exhaust to outside and fresh air from outside).

a)Pull back the insulation to expose the flexible duct.

b)Connect the interior flexible duct to the port using a duct tie.

c)Carefully seal the connection with duct tape.

d)Pull the insulation over the joint and tuck it between the inner and outer rings of the double collar.

e)Pull the vapor barrier over the insulation and over the outer ring of the double collar.

f)Apply duct tape to the joint making an airtight seal. Avoid compressing the insulation when you pull the tape tightly around the joint. Compressed insulation loses its R value and causes water dripping due to condensation on the exterior surface of the duct.

CAUTION

Make sure that the vapor barrier on the insulated ducts does not tear during installation to avoid condensation within the duct.

d), e)

Rigid duct:

Use duct tape to connect the rigid ducts to the ports.

CAUTION

Do not use screws to connect rigid ducts to the ports.

Make sure that the 2 balancing dampers are left in a fully open position before connecting the ducts to these ports (fresh air distribution port and stale air exhaust port as shown on figure 14).

VJ0009

figure 14

6.0Installation(cont???d)

6.7INSTALLING THE EXTERIOR HOODS

CAUTION

All models require an exhaust hood with a backdraft damper. This damper closes when the unit is off and prevents unwanted cold air from entering the house.

Choose an appropriate location for installing the exterior hoods:

???a minimum distance of 6 feet (1.8 m) between the hoods to avoid cross-contamination

???a minimum distance of 18 inches (457 mm) from the ground

Make sure the intake hood is at least 6 feet (1.8 m) away from any of the following:

???dryer exhaust, high efficiency furnace vent, central vacuum vent

???gas meter exhaust, gas barbecue-grill

???any exhaust from a combustion source

???garbage bin and any other source of contamination

Refer to figure 15 for connecting the insulat- ed duct to the hoods. Place the ???FRESH AIR INTAKE??? sticker, provided in the instal- lation kit, on corresponding hood. An ???Anti- Gust Intake Hood??? should be installed in regions where a lot of snow is expected to fall.

6.8CONNECTING THE DRAIN

Attach the 2 plastic drain fittings to the unit using the gaskets, washers and nuts as shown.

Cut 2 sections of plastic tubing, about 12??? (305 mm) long and attach them to each drain fitting.

VO0005

Join the 2 short sections to the ???T??? junction and main tube as shown.

Make a water trap loop in the tube to prevent the unit from drawing unpleasant odors from the drain source. Make sure this loop is situated BELOW the ???T??? as shown. This will prevent water from being drawn back up into the unit in case of negative pressure. Run the tube to the floor drain or to an alternative drain pipe or pail. Be sure there is a slight slope for the run-off.

Tie-wrap

7.0ControlDevices

7.1Main Controls

All models require a main control.

Basic model

CONDENSATI0N CONTROL

41 F

AIR SUPPLY CONTROL

OFF

MIN.

A IR

EXCHANGE

MAX.

VC0027

CAUTION

Electronic model

CONDENSATI0N CONTROL

CONDENSA TION CONTROL

MAXIMUM SPEED

AIR EXCHANGE IN PROGRESS

AIR SUPPLY CONTROL

MIN. MAX.

ON OFF

CONTINUOUS INTERMITTENT

VC0028

7.2OPTIONAL CONTROL

20/40/60-MINUTE PUSH-BUTTON TIMER:

This remote illuminated switch is typically installed in bathrooms, kitchen and laundry room to provide 20, 40 or 60 minutes of high speed ventilation at the push of a button. The switch is supplied and mounted on a white single gang wall plate.

7.0ControlDevices(cont???d)

7.3OTHER FEATURES

FURNACE INTERLOCK (for forced air heating system)

The furnace fan can be interlocked so that it will run simultaneously with the ERV or HRV to ensure proper distribution of fresh air throughout the house (see table section 7.4, to see if it is available on your unit).

PERMANENT MEMORY

Our electronic controls have a default memory feature in the event of a power outage. Even the date of the last service reminder is maintained as a convenience to the homeowner.

CONTROL UPGRADES

All controls can be used on any ERV, so a Basic control can be upgraded to the Electronic in the future (see table in Section 7.4 below for control availability according to the units).

7.4MAIN AND OPTIONAL CONTROLS AVAILABLE FOR YOUR UNIT

7.5SPECIAL COLD WEATHER TBI MODE FOR ERVS

The enthalpic core installed in ERVs requires extra protection when the outside temperature drops below -15??C (5??F).

A special operating mode called TBI (Time-Based Intermittent) is activated under these conditions.

Characteristics of cold weather TBI mode

???activated when the outside temperature drops below -15??C (5??F).

???20/40 cycle (20 minutes LOW speed followed by 40 minutes OFF).

???usual control of air supply via the main wall control is suspended (except for the OFF position).

???optional control (20/40/60-minute push button) retain its temporary high speed activation capability.

???deactivated when the outside temperature warms up higher than -15??C (5??F).

8.0InstallationoftheControls

8.1DIMENSIONS AND SPECIFICATIONS (MAIN CONTROLS)

Voltage: 12 volts DC

Dimensions: 5??? x 5??? x 1 3/8???

(127 mm x 127 mm x 35 mm)

VC0016

13/8"

(35 mm)

5" (127 mm)

(127 5" mm)

8.2INSTALLATION OF THE MAIN CONTROL

(BASIC AND ELECTRONIC)

CAUTION

Never install more than one main control per unit.

INSTRUCTIONS:

1- Determine the location of the control. The wall control must be installed in a central location on the main floor. Typical locations for these controls are kitchen, main hallways and family room.

2- Remove the button(s) and the cover plate of the control.

VC0026

3- Install the wall control 60 inches (1.5 m) from the floor and leave a free space of at least 2 inches (5 cm) to the right of the control to allow user to slide out the control instructions.

Use the template provided in the control box to position the wire hole and the screw holes. Use the screws and the plastic anchors provided in the installation kit to secure the control. (See figure 16.)

2" (5 cm)

60" (1.5 m)

VD0025

figure 16

8.0InstallationoftheControls(cont???d)

8.2INSTALLATION OF THE MAIN CONTROL (cont???d)

4- Connect the wires to the main control. (See figure 17.)

Y R GB

VD0026

figure 17

5- Make sure the instruction pull-out is in the occupant???s language. If not, turn it to the other side. (See figure 18.)

7- Connect the wires to their corresponding position inside the electrical compartment. Make sure the connections of the unit and of the wall control correspond exactly. (See figure 19.)

8- Connect the optional control (if applicable) by referring to Section 8.3.

Y R G B

F F I OCOL Y R G B

9- Do the appropriate connection to the furnace (if applicable) by referring to Section 8.4.

10- NOTE: If the unit is installed in a cold region (Zone A, as defined in Section 3.0), set up ???extended defrost??? by removing jumper JU1F on the main circuit board inside the electrical compartment (see Section 9.0).

11- Plug in the unit and do the ???overall verification??? of the system as described in Section 11.0.

8.0InstallationoftheControls(con???d)

8.3ELECTRICAL CONNECTION TO OPTIONAL CONTROLS

MAIN PCBOARD

6 OL 5 OC 4 I 3 2 J3 1

8.4ELECTRICAL CONNECTION TO THE FURNACE

010 ! WARNING

Never connect a 120-volt AC circuit to the terminals of the furnace interlock (standard wiring). Only use the low voltage class 2 circuit of the furnace blower control.

For a furnace connected to cooling system:

On some older thermostats, energizing the ???R??? and ???G??? terminals at the furnace has the effect of energizing ???Y??? at the thermostat and thereby turning on the cooling system. If you identify this type of thermostat, you must use the ???alternate furnace interlock wiring???. An additional control relay will then have to be installed.

Standard furnace interlock wiring

Alternate furnace interlock wiring

RELAY

FURNACE

24-VOLT

TERMINAL BLOCK

2 WIRES

COOLING SYSTEM

*FURNACE INTERLOCK RELAY, PART # 12658

VE0009A

NOTE 4

Wiring 0.9

DEFROST

TEMPERATURE

SENSOR

t -

ELECTRONIC ASSEMBLY

Diagram

MAIN EARTHING

POINT

VE0037A

NOTES

1- Controls available. See Section 8.0 (Low voltage only, 12VDC)

2- The factory set wiring for blower speed selection is high and low. Medium speed can be selected instead of low speed. Disconnect the RED wire from the motor RED tap and connect it to the motor BLUE tap.

3- If any of the original wire, as supplied, must be replaced, use the same or equivalent wire.

4- Use the factory supplied protective tubing.

5- The field wiring must comply with applicable codes, ordonnances and regulations.

6- The furnace fan circuit must be class 2 circuit only.

0 = Relay coil is de-energized

1 = Relay coil is energized

NOTE

SPECIAL DEFROST CYCLE:

The mode is the same whichever the exchange speed selected by the wall control.

6 min. defrost 34 min. OFF 20 min. exchange low speed

BELOW

-15??C - A change of air exchange speed on the wall control (-5??F) during the special defrost cycle will reset the special

defrost cycle to the beginning (6 min. defrost).

- The override circuit will remain active during the special defrost cycle. An override call will be answered.

- If the outside temperature revert above -15??C (5??F), it is only during the last part of the cycle (20 min. exchange) that the controller will stop the special defrost cycle.

10.0AirFlowBalancing

WHAT YOU NEED TO BALANCE THE UNIT

???A magnehelic gauge capable of measuring 0 to

0.25 inch of water (0 to 62.5 Pa) and 2 plastic tubes.

PRELIMINARY STAGES TO BALANCE THE UNIT

???Seal all the unit ductwork with tape. Close all windows and doors.

???Turn off all exhaust devices such as range hood, dryer and bathroom fans.

???Make sure all filters are clean (if it is not the first time you balance the unit).

???Make sure the balancing dampers are fully open (F and G in figure 20).

Choose appropriate locations for the 2 flow collars (or flow measuring stations), according to figure 20:

???On the exhaust air duct (first measuring location, A)

???On the fresh air distribution duct (second measuring location, B

???At least 36??? away from the unit; at least 12??? before or after a 90?? elbow; at least 12??? away from a register.

INSTALLATION OF FLOW COLLARS OR ???FLOW MEASURING STATIONS???

???If you are using Flow Collars:

Insert the flow collars in the duct at each location. Make sure their arrows are pointing in the direction of the airflow. Tape collars in place temporarily.

???If you are using ???Flow Measuring Stations???:

Cut a 1??? (25.4mm) diameter hole in the duct at each location. Insert the ???Flow Measuring Stations???. Make sure their arrows are pointing in the direction of the airflow. Tape the ???Flow Measuring Stations??? in place temporarily.

10.0AirFlowBalancing(cont???d)

BALANCING PROCEDURE

1.Set the unit to high speed.

Make sure that the furnace blower is ON if the installation is in any way connected to the ductwork of the cold air return. If not, leave furnace blower OFF. If the outside temperature is below 0??C / 32??F, 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.)

2.Place the magnehelic gauge on a level surface and adjust it to zero.

3.Connect tubing from gauge to flow collar (or ???Flow Measuring Station???) in exhaust air stream at location A. Be sure to connect the tubes to their appropriate high/low fittings. 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 and exhaust ducted installation. Place the magnehelic gauge upright and level. Record the readings.

VP0003

4.Move tubing to FRESH air flow on the other side of the unit (location B) and note readings.

Adjust the fresh air balancing damper F until the reading at B is approximately the same as the reading at A. If the reading at B is less than the reading at A, then go back and adjust the exhaust balancing damper G to equal the fresh air flow.

VP0004

5. Secure both dampers in place with tape or with a fastening screw.

VD0069

VD0052

6.If you are using flow collars, remove them, reconnect the duct and seal with duct tape. If you are using ???Flow Measuring Stations???, remove them and seal the holes with duct tape. 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).

NOTES: Most flow collar kits provide a conversion chart located on the collar which enables you to convert magnehelic gauge readings to equivalent cfm values.

The unit is considered balanced even if there is a difference of +/- 10 cfm (+/- 0.015 inch w.g.) between the two air flow readings.

If you are only using one flow collar or one ???Flow Measuring Station???, then, after completing the first reading, transfer this measuring device to the other side of the unit and take the second reading.

11.0OverallVerification

11.1MAIN CONTROLS

This procedure allows the installer to verify that all modes of operation are fully functional.

During the verification of a main control, make sure that all optional remote controls are inactive.

BASIC (6 different control scenarios to be tested)

CONDENSATI0N CONTROL

41 F

AIR SUPPLY CONTROL

OFF

MIN.

A IR

EXCHANGE

MAX.

VC0027

ELECTRONIC (8 different control scenarios to be tested)

11.2OPTIONAL CONTROL

CONDENSATI0N CONTROL

VC0028

B A

First, turn OFF the main control device (Basic or Electronic) before checking the remote optional control.

20/40/60-MINUTE PUSH-BUTTON TIMER:

Activate the push button. Within 2 seconds, push one time for 20 minutes, two times for 40 minutes or three times for a 60-minute activation.

Results expected:

1. Motor speed: high for 20, 40 or 60 minutes.

2. Indicator light goes ???ON??? and flashes every 5 seconds (one time to indicate a 20-minute operation, two times for a 40-minute, and three times for a 60-minute operation).

3. Air exchange indicator light goes ???ON??? (Electronic wall control only).

NOTE: To stop activation, push one more time.

VC0046

20 min.

40 min.

60 min.

12.0Maintenance/InstructionsforUser

010 ! WARNING

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

???Review with the user the steps required for the regular maintenance of her/his ventilation system. These steps are described in details in the user manual:

FOUR TIMES A YEAR:

???Inspect the intake hood, and clean if needed.

???Clean the filters.

???Clean the interior of the cabinet and clean the door.

???Clean the condensation tray and inspect the drain tubing.

ONCE A YEAR:

???Clean the recovery core.

???Clean the blades of the blower wheels if needed.

???Warn the user of the necessity to rebalance the system following a major house renovation or following the installation of any extra registers.

???Make sure the user understands how to use the main control as described in the user manual.

???If the unit being installed is an ERV, then make sure the user understands the characteristics of the special cold weather TBI mode. The user should understand that his unit will not obey the settings on the main wall control when the temperature drops below -15??C (5??F). See Section 7.5.

CAUTION

Do not oil the motor. It is already permanently lubricated.

13.0Troubleshooting

NOTE: Inspect the unit before proceeding with these steps.

Start-up troubleshooting:

???The wire in the wall OR the wall control may be defective.

???Remove the wall control and test it right beside the unit using another shorter wirer. If the wall control works there, change the wire. If it does not, change the wall control.

???The circuit board may be defective.

??? If the second wall control does not solve the problem, then replace the circuit board.