Lifebreath 200ERVD User Manual

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Page 1

CLEAN • FRESH • AIR

OPERATION AND

INSTALLATION MANUAL

Contains

ControlAir 15

For Models: 200ERV

200ERVD 500ERV 700ERV 1200ERV

TO BE COMPLETED BY CONTRACTOR AFTER INSTALLATION

ControlAir 15

Analog Controls

Installing Contractor

Telephone / Contact

CAUTION

Before given to how the system will operate if connected to any other piece of mechanical equipment, i.e. a forced air furnace or air handler, operating at a higher static. After equipment must be confirmed, by measuring the airflow’s of the Energy Recovery Ventilator (ERV), by using the balancing procedure in this manual

It is always important to assess how the operation of any Energy Recovery Ventilator may interact with vented combustion equipment (ie. Gas Furnaces, Oil Furnaces, Wood Stoves, etc.)

NEVER install an Energy Recovery Ventilator in a situation where its normal operation, lack of operation or partial failure may result in the backdrafting or improper functioning of vented combustion equipment!!!

IMPORTANT - PLEASE READ THIS MANUAL BEFORE INSTALLING UNIT

installation, careful consideration must be

installation, the compatibility of the two pieces of

Serial Number

Installation Date Model

* LEAVE FOR HOMEOWNER

NOTE: Due to ongoing research and product development, specifications,

ratings and dimensions are subject to change without notice.

TI-83C-NE

0007

Page 2

TABLE OF CONTENTS

Warranty ..................................................................................... 2

ERV Questions and Answers ..................................................... 3

Select the Correct Size ERV .......................................................5

Specifications

Model 200ERV ........................................................................... 6

200ERVD ........................................................................ 7

500ERV ........................................................................... 8

700ERV ........................................................................... 9

1200ERV ........................................................................ 10

Description of your ERV

Part 1: Function and Control

Operation of the ControlAir 15 ................................................. 12

Glossary

Optional Remote Controls ......................................................14

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

Part 2: Installation

Installation

m • Location

• Mounting the ERV

• Electrical

Installing Air Ducts

• Outside Weatherhoods

• Locating the Weatherhoods Installing Ducting from Weatherhoods to the ERV

•

• Ducting

• Connections to Furnace Ductwork ................................... 18

• Damper and Grilles ......................................................... 18

Air Flow Balancing and Procedure Installation Diagrams General Installation

..............................................................................16

...........................................................11

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

................................................................ 17

..................................................... 20 - 21

........................................................ 22 - 26

.................................. 12

...................................... 19

INTRODUCTION

The LIFEBREATH Enthalpic Core Energy Recovery Ventilator (ERV) is designed for warm, humid regions and it uses the vapour transmission technology to transfer sensible and latent heat to the cooler, drier air stream. During the cooling season, humidity drawn in from the outside is transferred through the core to the exhaust air stream, helping lower the load on the air conditioner. It is recommended for regions where the temperature does not drop below 25˚F (-4˚C).

WARRANTY

All LIFEBREATH Energy Recovery Ventilators carry a five year warranty on the Energy Recovery Core, Model 200ERV has a 5 year warranty on replacement parts and Model 500, 700, and 1200 ERV has a 2 year warranty on replacement parts.

Maintenance

Troubleshooting Your ERV ...................................................... 27

Maintenance Routine ....................................

Wiring Diagram ..................

TFP Information ....................................................................... 32

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

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

.......... 28

29 - 31

Page 3

ERV Questions & Answers

What is the difference between an HRV and an ERV?

The core in an HRV (Heat Recovery Ventilator) transfers heat from one air stream to the other. This is called

sensible heat

Ventilator) is usually used to describe a unit with an enthalpic core that transfers moisture as well as heat from one air stream to the other. This (moisture transfer) is called

. The term ERV (Energy Recovery

latent heat

Enthalpic - what does it mean?

Enthalpy is the term used to describe the energy content of air. This energy is a combination of the sensible and latent heat. Therefore, a core which transfers energy is called an enthalpic core.

Is an ERV better than an HRV?

NOT NECESSARILY!! In cold climates such as most of North America, an HRV works better than an ERV. This is because the air inside the home during the winter months will be more humid than the outside air. An ERV would transfer the latent heat (humidity) from the exhaust air back into the incoming airstream. This will aggravate moisture problems in the home and encourage the growth of mold and mildew. If the air in the home is too dry for comfort, an ERV will not help. A humidifier should be used to increase the humidity to a comfortable level.

Where do you use an ERV instead of an HRV?

An ERV is recommended for warm, humid areas with heavy air conditioning use. As there is no defrost in an ERV it is not recommended for areas where the temper-

ature drops below -4

˚C (25˚F)

Why transfer moisture in the summer (cooling season)?

The enthalpic core will allow moisture to be transferred from a humid air flow to a dry air flow. This property is useful in the cooling season if an air conditioning system is used to lower the indoor humidity. You will then have dry, cool air in the exhaust of the ERV, and warm humid air in the supply stream. With these conditions, the ERV will be able to transfer the moisture and heat of the supply air to the exhaust air. In this way, the ERV will supply to the home air which is cooler and drier than outside. Remember that an ERV is not a dehumidifier, and on its own will not take moisture out of the air.

damp situation. In fact, about 2/3 of the energy used by the air conditioner system is to remove moisture. Therefore, when ventilating in the summer, less moisture brought into the home means less work for the air conditioner, and energy savings for you.

During the winter, an ERV recovers some humidity from the exhaust air, reducing the need for humidification, if the required ventilation rate would make the home too dry.

What's the difference between this type of core and a rotary type?

Here's a list of characteristics of the fixed plate core.

1. No rotating parts, so maintenance is easy and the unit lasts a long time.

2. It is very flexible in terms of installation.

3. The core can easily be changed.

4. Because the supply and exhaust air streams are

completely separate, there is very little cross leakage of any dust or germs.

Can the core become clogged with dust?

Because the surface of the core is a turbulent flow area, dust sticks to it easily; however, because the inside of the element is a laminar flow area, virtually no dust sticks to it.

What is the maintenance?

About once a year you should use a vacuum cleaner to remove the dust from the core's surface. DO NOT WASH WITH WATER!!

Is an air filter needed?

To prevent clogging of the core, an air filter should always be installed on the supply and exhaust sides of the core.

How much ventilation do I need?

During seasons when your windows and doors are closed, the ERV should operate continuously when the dwelling is occupied, and either continuously or intermittently when not occupied.

For most installations the ERV will normally be set to operate continuously on low speed with the option of going to high speed as the need arises. For example; if you are entertaining and there is a large number of people present (some may be smoking), the unit should be switched to high speed.

So why use an ERV?

A properly operating air conditioner will not only lower the temperature in your house, but will also lower the humidity level. This prevents an uncomfortable cold and

Your ERV may be equipped with automatic or manual switches, but all ERVs will have a manual speed control override.

Page 4

CLEAN • FRESH • AIR

Select the correct Lifebreath to match your climate

Severe Conditions Moderate Conditions

HRV recommended HRV recommended Double core high efficiency HRV recommended for extreme conditions

Pacific Coastal Arid Zone-Dry Climate

HRV recommended HRV recommended ERV optional* Double core high efficiency HRV optional

Extreme Area**-High Humidity

ERV recommended*

*ERV not recommended where temperatures fall below 25˚F (-4˚C) for more than 5 days.

**ERV 's are recommended in regions where high outdoor humidity is cause for operating air

conditioning/dehumidification more frequently than heating system.

The following table is used to outline total dollar ventilation costs for Heat Recovery Ventilators (HRV's) and Energy Recovery Ventilators (ERV's) for various geographic regions in the United States and Canada. Costs are for balanced systems using values based on electricity at $0.086 per kWh and fossil fuel at $0.72 per therm (100, 000 BTU). It was assumed that electric heat was 100% efficient and fossil fuel heat was 80% efficient. Cooling equipment had a SEER of 12.

Ventilation energy costs would include both fan energy use and the energy required to condition the air displaced by the ventilation system.

Straight ventilation costs are also included to show the benefit of recovery.

ANNUAL SAVINGS WITH BALANCED MECHANICAL VENTILATION WITH ENERGY RECOVERY

MODE LOS ANGELES MIAMI NEW YORK DETROIT MINNEAPOLIS PORTLAND, OR

HRV - ELECTRIC HEAT ERV - ELECTRIC HEAT

HRV - FOSSIL FUEL HEAT $60.97 $124.95 $80.72 $81.73 $92.08 $66.19 ERV - FOSSIL FUEL HEAT $59.56 $104.42 $76.84 $79.37 $88.38 $65.76

VENTILATION ONLY-FOSSIL VENTILATION ONLY-ELECTRIC

SAVINGS WITH ERV-ELECTRIC $69.86 $133.61 $179.89 $228.79 $285.22 $76.20 SAVINGS WITH HRV-ELECTRIC $65.05 $85.68 $192.65 $257.23 $322.46 $110.80 SAVINGS WITH ERV-FOSSIL $65.93 $150.51 $133.20 $156.36 $191.05 $103.28 SAVINGS WITH HRV-FOSSIL $64.52 $129.98 $129.32 $154.00 $187.35 $102.85

HRV - ELECTRIC HEAT $145.30 $155.04 $189.52 ERV - ELECTRIC HEAT $179.78 $196.74 $253.93

HRV - FOSSIL FUEL HEAT $82.72 $84.87 $93.49 ERV - FOSSIL FUEL HEAT $80.80 $83.27 $92.49

VENTILATION ONLY-FOSSIL VENTILATION ONLY-ELECTRIC

SAVINGS WITH ERV-ELECTRIC $249.37 $276.87 $368.91 SAVINGS WITH HRV-ELECTRIC $283.85 $318.57 $433.32 SAVINGS WITH ERV-FOSSIL $166.60 $180.99 $230.41 SAVINGS WITH HRV-FOSSIL $164.68 $179.39 $229.41

$71.57 $171.66 $125.19 $138.83 $166.62 $142.18 $66.76 $123.73 $137.95 $167.27 $203.86 $176.78

$125.49 $254.93 $210.04 $253.73 $279.43 $169.04 $136.62 $257.34 $317.84 $396.06 $489.08 $252.98

TORONTO MONTREAL WINNIPEG

$247.40 $264.26 $322.90 $429.15 $473.61 $622.84



511 McCormick Blvd. London, Ontario Canada N5W 4C8 Phone: (519) 457-1904 Fax: (519) 457-1676

Page 5

Selecting the Correct Size ERV

Commercial and Institutional Requirements

For outdoor air requirements, ASHRAE has produced the Ventilation Standard 62-1989 that is used to determine acceptable ventilation rates. This standard is referenced directly or used as “Good Engineering Practice” in most Code documents or design criteria.

Small restaurants, Donut Shops and Fast food stores

Seats 40 Employees 5 Total 45 ASHRAE requirement 20 cfm (10L/s) per person Ventilation required 45 x 20 = 900 cfm (450 L/s)

Bar or Tavern

Seats 50 Employees 7 Total 57 ASHRAE requirement 30 cfm (15L/s) per person Ventilation required 57 x 30 = 1710 cfm (855 L/s)

Classroom and School Portables

Seats 29 Teacher 1 Total 30 ASHRAE requirement 15 cfm (7.5L/s) per person Ventilation required 30 x 15 = 450 cfm (255 L/s)

Beauty Salon

Customers 12 Employees 6 Total 18 ASHRAE requirement 25 cfm (12.5L/s) per person Ventilation required 18 x 25 = 450 cfm (255 L/s)

Bank

Customers 25 Staff 9 Total 34 ASHRAE requirement 20 cfm (10L/s) per person Ventilation required 34 x 20 = 680 cfm (320 L/s)

Bingo Hall

Customers 180 Staff 20 Total 200 ASHRAE requirement 30 cfm (15L/s) per person Ventilation required 200 x 30 = 6000 cfm (3000 L/s)

Print Shop, Duplicating

Square footage of shop 2000 square ft (m

ASHRAE requirement 0.5 cfm/ft2 (2.5L/s - m

per person

Ventilation required 2000 x 0.5 = 1000 cfm (500 L/s)

Swimming Pools

1 cfm per sq. ft. of the water surface area or

0.5 cfm per sq. ft. of the water surface plus deck area

Hot Tubs

7 - 10 cfm per sq. ft. of the water surface area

)

MAKE UP HEAT REQUIREMENT at 1200 CFM (566L/s)

Nominal Nominal Nominal

Outdoor Temp. kW Req. for kW Req. for kW Req. for

C° F° 20°C (68°F) 25°C (77°F) 30°C (86°F)

Air Delivery Air Delivery Air Delivery

0 32 7 10 14

-10 14 10 14 17

-20 -4 12 15 19

-30 -22 15 19 22

-40 -40 17 21 24

Page 6

CLEAN • FRESH • AIR

ENGINEERING DATA

LATENT RECOVERY/MOISTURE TRANSFER CORE

The cross-flow energy recovery core transfers heat and water vapour between the two airstreams. It is easily removed for cleaning or service.

MOTORS AND BLOWERS

driven by a common PCS motor. 5 speed fan operation. High speed - 120 VAC, 1.4 Amps, 164 Watts.

FILTERS

- Washable air filters in exhaust and supply air streams.

MOUNTING THE ERV

corners of case designed to accept four PVC reinforced polyester straps that are supplied with the unit.

CASE

- Twenty gauge prepainted galvanized steel (G60) for superior

corrosion resistance. Insulated to prevent exterior condensation.

CONTROLS

WEIGHT

- ControlAir 15

63 lbs. (28.7 kg)

Each air streams has one centrifugal blower

- Four 10/24" (10.5 mm) threaded inserts at

SHIPPING WEIGHT

65 lbs. (29.6 kg )

Model 200 ERV

PERFORMANCE

Net supply airflow in cfm (L/s) against external static pressure

E.S.P cfm L/s

@ 0.1” (25 Pa) 195 (92) @ 0.2” (50 Pa) 185 (87) @ 0.3” (75 Pa) 175 (83) @ 0.4” (100 Pa) 160 (76) @ 0.5” (125 Pa) 145 (68)

Sensible Effectiveness @ 110 L/s (55 cfm)

Sensible Efficiency @ 110L/s (55 cfm) @0

Sensible Efficiency @ 110 L/s (55 cfm) @ -25

VAC @ 60HZ 120 WATTS / Low speed 80 Amp rating 1.4

HVI CERTIFIED

(CSA C439M)

C (32°F) 70%

C (-13°F)

80%

55%

DIMENSIONS 200 ERV

All Duct Connections 6"(150mm)

STALE AIR

FROM INSIDE

FILTERS

FRESH AIR

FROM OUTSIDE

OPTIONS

99-104 Digital Electronic Timer - 20/40/60 min. (3 wire) 99-105 Deluxe Programmable Control includes

Programmable Time Clock, Dehumidistat and Air Sentry™

99-109 Air Sentry™ Air Quality Monitor 99-186 Weatherhoods, Two - 6” (150mm)

c/w 1/4” (6mm) mesh screen

MOTOR

31"

(787)

inches (mm)

FRESH AIR

TO INSIDE

BLOWERS

STALE AIR

TO OUTSIDE

19"

(483)

14 3/4"

(375)

*NOTE: Front clearance  of 25 inches (635 mm)  is recommended  for servicing unit.

WARRANTY

Units carry a 5 year warranty on the energy recovery core and replacement parts.

All units are CSA and UL standards.

It is not recommended for regions where the temperature does not drop below 25°F (-4°C)

DATE: __________________________ PROJECT: ___________________________________ MECHANICAL CONTRACTOR: __________________________



511 McCormick Blvd. London, ON N5W 4C8

Phone: (519) 457-1904 Fax: (519) 457-1676 Email: nutech@lifebreath.com

TI-98E

0006

Page 7

CLEAN • FRESH • AIR

ENGINEERING DATA

LATENT RECOVERY/MOISTURE TRANSFER CORE

The cross-flow energy recovery core transfers heat and water vapour between the two airstreams. It is easily removed for cleaning or service.

MOTORS AND BLOWERS

driven by a common PCS motor. 5 speed fan operation. High speed - 120 VAC, 1.4 Amps, 164 Watts.

FILTERS

- Washable air filters in exhaust and supply air streams.

MOUNTING THE ERV

corners of case designed to accept four PVC reinforced polyester straps that are supplied with the unit.

DEFROST CASE

- Damper defrost system.

- Twenty gauge prepainted galvanized steel (G60) for superior

corrosion resistance. Insulated to prevent exterior condensation.

DRAIN CONNECTIONS CONTROLS

WEIGHT

- ControlAir 15

63 lbs. (28.7 kg)

Each air streams has one centrifugal blower

- Four 10/24" (10.5 mm) threaded inserts at

- Two - 1/2” (12mm) O.D.

SHIPPING WEIGHT

65 lbs. (29.6 kg )

Model 200 ERVD

PERFORMANCE

Net supply airflow in cfm (L/s) against external static pressure

E.S.P cfm L/s

@ 0.1” (25 Pa) 195 (92) @ 0.2” (50 Pa) 185 (87) @ 0.3” (75 Pa) 175 (83) @ 0.4” (100 Pa) 160 (76) @ 0.5” (125 Pa) 145 (68)

Sensible Effectiveness @ 110 L/s (55 cfm)

Sensible Efficiency @ 110L/s (55 cfm) @0

Sensible Efficiency @ 110 L/s (55 cfm) @ -25

VAC @ 60HZ 120 WATTS / Low speed 80 Amp rating 1.4

HVI CERTIFIED

(CSA C439M)

C (32°F) 70%

C (-13°F)

80%

55%

FRESH AIR

FROM OUTSIDE

DAMPER

DEFROST

PORT

FILTERS

STALE AIR

FROM HOUSE

CONDENSATE DRAINS

DIMENSIONS 200 ERVD

All Duct Connections 6"(150mm)

MOTOR

31"

(787)

OPTIONS

99-104 Digital Electronic Timer - 20/40/60 min. (3 wire) 99-105 Deluxe Programmable Control includes

Programmable Time Clock, Dehumidistat and Air Sentry™

99-109 Air Sentry™ Air Quality Monitor 99-186 Weatherhoods, Two - 6” (150mm)

c/w 1/4” (6mm) mesh screen

inches (mm)

STALE AIR

TO OUTSIDE

BLOWERS

FRESH AIR

TO INSIDE

19"

(483)

14 3/4"

(375)

*NOTE: Front clearance  of 25 inches (635 mm)  is recommended  for servicing unit.

WARRANTY

Units carry a 5 year warranty on the energy recovery core and replacement parts.

All units are CSA and UL standards.

It is not recommended for regions where the temperature does not drop below 25°F (-4°C)

DATE: __________________________ PROJECT: ___________________________________ MECHANICAL CONTRACTOR: __________________________



511 McCormick Blvd. London, ON N5W 4C8

Phone: (519) 457-1904 Fax: (519) 457-1676 Email: nutech@lifebreath.com

TI-200ERVD

0006

Page 8

SPECIFICATIONS

CLEAN • FRESH • AIR

PERFORMANCE

Model 500ERV

LATENT RECOVERY (MOISTURE) TRANSFER CORES

Modular (4 section) 2- Enthalpic, 2 Aluminum arranged for high efficiency crossflow ventilation.

MOTORS

total on high speed). HP - 1/10, 1625 RPM. Watts - total on High Speed - 610.

FILTERS BLOWERS

Each air stream has two centrifugal blowers driven by two PSC motors.

CONNECTION DUCT SIZES MOUNTING

type apparatus (brackets and rods not included).

DEFROST

CASE

resistance. Insulated with foil faced insulation duct liner where required to prevent exterior condensation. Drain connection, One - 1/2" (12 mm) O.D.

CONTROLS

WEIGHT

Two PSC, 5 speed double shafted, 120 VAC, 3.15 Amps each (6.3

- Washable air filters in exhaust and supply air streams.

- Centrifugal type rated at 530 cfm (250 L/s) free air delivery.

Four - 14" x 8" (356 mm x 200 mm).

- Unit to be set on support brackets hung by threaded rod

- Damper defrost system.

- 20 gauge prepainted galvanized steel (G60) for superior corrosion

- ControlAir 15

178 lbs. (81 kg)

SHIPPING WEIGHT

203 lbs. (92 kg)

AIRFLOWS (Each Air Stream)

282 (600)

235 (500)

190 (400)

143 (300)

94 (200)

AIRFLOW L/s (CFM)

42 (100)

25 (.1)  50 (.2)  75 (.3) 100 (.4) 125 (.5)

EXTERNAL STATIC PRESSURE IN PASCALS (in. W.C.)

TEMPERATURE EFFECTIVENESS

100%

90%

EFFECTIVENESS

80%

(200)

143

(300)

AIRFLOW IN L/s (CFM)

LIFEBREATH 500

SPEED

5 4

3 2 1

LIFEBREATH 500

NOTE: Exhaust Relative Humidity (RH) at 40%

190

(400)

235

(500)

6.3 HIGH

3.8 MED

3.1 LOW

282

(600)

TOTAL CURRENT DRAW (AMPS) @ 120 VAC

DIMENSIONS 500 ERV

EXHAUST AIR

TO OUTSIDE

NOTE:  Service clearance is 30 in. (760 mm)

SUPPLY AIR

FROM OUTSIDE

DEFROST

DRAIN CONNECTION

49"

(1245 mm)

FRONT VIEW

OPTIONS

99-104 Digital Electronic Timer - 20/40/60 min. (3 wire) 99-105 Programmable Ventilation Control includes

Programmable Time Clock, Dehumidistat and Air Sentry™

99-109 Air Sentry™ Air Quality Monitor

________________

DATE:

PROJECT:

________________________________________

MECHANICAL CONTRACTOR:

UNIT SELECTED:

__________________________

EXHAUST AIR

FROM BUILDING

SUPPLY AIR

TO BUILDING

_____________

18 3/4"

(475 mm)

inches (mm)

MOUNTING POINTS

5 7/8"

(150 mm)

1 3/8"

(35 mm)

EXTERIOR DUCT

14"

(356 mm)

28 1/4"

(717 mm)

CONNECTION SIDE

(200 mm)

1 1/4"

(32 mm

)

14"

(356 mm)

28 1/4 "

(717 mm)

INTERIOR DUCT

CONNECTION SIDE

5 7/8"

(150 mm)

(200 mm)

18 3/4"

(475 mm)

All units conform to CSA and UL standards.

WARRANTY

Units carry a 5 year warranty on the energy recovery cores and 15 years on aluminum cores. Two (2) year replacement parts warranty.

It is recommended for regions where the temperature does

not drop below 25°F (-4°C).



511 McCormick Boulevard. London, ON N5W 4C8

Phone: (519) 457-1904 Fax: (519) 457-1676 E mail:nutech@lifebreath.com

TI-130

0006

Page 9

SPECIFICATIONS

PERFORMANCE

CLEAN • FRESH • AIR

LATENT RECOVERY (MOISTURE) TRANSFER CORES

Modular (2 section) enthalpic (moisture) transfer cores arranged for efficient cross-flow ventilation.

MOTORS

Two PSC, 3 speed single shafted, 120 VAC, 2.75 Amps each (5.5 total on high speed). HP - 1/10, 1625 RPM. Watts - total on high speed - 648.

FILTERS

Washable air filters in exhaust and supply air streams.

BLOWERS

Centrifugal type rated at 700 CFM (329 L/s) free air delivery. Each air stream has one single shafted motor driving a centrifugal blower.

CONNECTION DUCT SIZES

Four - 14" x 8" (356 mm x 200 mm)

MOUNTING

Unit to be set on support brackets hung by threaded rod type apparatus (brackets and rods not provided).

CASE

20 gauge prepainted galvanized steel (G60) for superior corrosion resistance. Insulated with foil faced insulation where required to prevent exterior condensation.

CONTROLS

Illuminated power switch, 3 speed blower control, low voltage (24 VAC) terminals for connection of remote controls.

WEIGHT

142 lbs (64.4 kg)

SHIPPING WEIGHT

167 lbs. (75.8 kg)

Model 700ERV

MODEL 700FD, 700DD

AIRFLOWS (Each Air Stream)

423 (900) 378 (800) 329 (700) 282 (600) 235 (500) 190 (400) 143 (300) 94 (200)

AIRFLOW L/s (CFM)

 42 (100)

25 (.1) 50 (.2) 75 (.3) 100 (.4) 125 (.5) 150 (.6) 175 (.7)

EXTERNAL STATIC PRESSURE IN PASCALS (IN. W.C.)

TEMPERATURE EFFECTIVENESS

70%

60%

50%

EFFECTIVENESS

NOTE: Exhaust Relative Humidity (RH) at 40%

HIGH SPEED MED SPEED LOW SPEED

5.5 HIGH

5.0 MED

4.7 LOW

TOTAL CURRENT DRAW (AMPS) @ 120 VAC

DIMENSIONS 700

SUPPLY AIR

FROM OUTSIDE

NOTE:  Service clearance is 30 in. (760 mm)

EXHAUST AIR

FROM BUILDING

HEAT RECOVERY VENTILATORS (HRVs)

29 5/8" (753 mm)

FRONT VIEW

All units conform to CSA and UL standards.

WARRANTY

Units carry a 5 year warranty on the energy recovery cores and 2 year replacement parts warranty.

DATE:

PROJECT:

MECHANICAL CONTRACTOR:

_________________________________________

______________________________________

__________________________

EXHAUST AIR

TO OUTSIDE

SUPPLY AIR

TO BUILDING



625 mm

(24 5/8 ")

190

inches (mm)

CONTROLS

14"

(356 mm)

8" 

(200 mm)

28 3/4"

(730 mm)

DISCHARGE SIDE

8 1/4"

(210 mm)

(165 mm)

143

(400)

(300)

AIRFLOW IN L/s (CFM)

MOUNTING POINTS

6 1/2"

(165 mm)

235

(500)

282

(600)

14"

(356 mm)

6 1/4"

(159 mm)

8" 

(200 mm)

28 3/4"

(730 mm)

INLET SIDE

It is recommended for regions where the temperature does not fall below 25°F (-4°C).

511 McCormick Blvd.



London, ON N5W 4C8 Phone: (519) 457-1904 Fax: (519) 457-1676

E mail: nutech@lifebreath .com

329

(700˚)

TI-131

9807

Page 10

CLEAN • FRESH • AIR

SPECIFICATIONS

PERFORMANCE

Model 1200ERV

LATENT RECOVERY (MOISTURE) TRANSFER CORES

Modular (3 section) latent recovery (moisture) transfer cores arranged for efficient cross-flow ventilation.

MOTORS

Two PSC, 3 speed double shafted, 120 VAC, 4 Amps each (8.1 total on high speed). HP - 1/4, 1625 RPM. Watts - total on high speed - 972.

FILTERS

Washable air filters in exhaust and supply air streams.

BLOWERS

Centrifugal type rated at 1200 cfm (566 L/s) free air delivery. Each air stream has one double shafted motor driving a centrifugal blower.

CONNECTION DUCT SIZES

Four - 20" x 8" (508 mm x 200 mm).

MOUNTING

Unit to be set on support brackets hung by threaded rod type apparatus. (brackets and rod not provided).

CASE

20 gauge prepainted galvanized steel (G60) for superior corrosion resistance. Insulated with foil faced insulation where required to prevent exterior condensation.

CONTROLS

Illuminated power switch, 3 speed blower control, low voltage (24 VAC) terminals for connection of remote controls.

WEIGHT

191 lbs. (87 kg)

SHIPPING WEIGHT

215 lbs. (98 kg)

613 (1300) 566 (1200) 518 (1100) 472 (1000) 423 (900) 378 (800) 329 (700)

AIRFLOW L/s (CFM)

282 (600) 235 (500)

25 (.1) 50 (.2) 75 (.3) 100 (.4) 125 (.5) 150 (.6) 175 (.7)

EXTERNAL STATIC PRESSURE IN PASCALS (in. W.C.)

TEMPERATURE EFFECTIVENESS

70%

60%

EFFECTIVENESS

50%

500

(235)

AIRFLOWS (Each Air Stream)

8.1 HIGH

1100

(518)

7.8 MED

7.1 LOW

1200

(566)

HIGH SPEED

MED SPEED

LOW SPEED

NOTE: Exhaust Relative Humidity (RH) at 40%

700

800

900

700

(329)

(329˚)

800

(378)

600

(282)

AIRFLOW IN L/s (CFM)

900

(423)

1000

(472)

TOTAL CURRENT DRAW (AMPS) @ 120 VAC

DIMENSIONS 1200

SUPPLY AIR

FROM OUTSIDE

NOTE:

 Service clearance is 30 in. (760 mm) from front  access doors.

EXHAUST AIR

FROM BUILDING

29 7/8" (759 mm)

FRONT VIEW

EXHAUST AIR

HEAT RECOVERY VENTILATORS (HRVs)

TO OUTSIDE

SUPPLY AIR

TO BUILDING

OPTIONS

99-101 Sixty Minute Remote Timer 99-130 Remote Wall Mount Dehumidistat Control

24 VAC only, W (white) or B (beige)

________________

DATE:

PROJECT:

________________________________________

MECHANICAL CONTRACTOR:

UNIT SELECTED:

__________________________

CONTROLS

inches (mm)

20"

(508 mm)

6 3/4"

(172 mm)

(200 mm)

41 1/2"

(1055 mm)

DISCHARGE SIDE

All units conform to CSA and UL standards.

WARRANTY

Units carry a 5 year warranty on the energy recovery cores and 2 year replacement parts warranty.

It is recommended for regions where the temperature does not fall below 25°F (-4°C).

_____________

10 3/8"

(263 mm)

24 5/8 "

(625 mm)



10 3/8"

(263 mm)

20"

(508 mm)

5 7/8"

(159 mm)

(200 mm)

41 1/2"

(1055 mm)

INLET SIDE

511 McCormick Boulevard London, Ontario

Phone: (519) 457-1904 Fax: (519) 457-1676 E mail:nutech@lifebreath.com

TI-132

9807

Page 11

STALE AIR

FROM INSIDE

DIMENSIONS 200 ERV

All Duct Connections 6"(150mm)

MOTOR

FRESH AIR

TO INSIDE

inches (mm)

FILTERS

FRESH AIR

FROM OUTSIDE

31"

(787)

Figure 2

DESCRIPTION OF YOUR ERV

A) Air Circulation Fans and Motor

Inside the casing are two fans, one for exhaust air and one for fresh air supply. Turning the fans is an efficient PSC motor.

B) Latent Recovery / Moisture Transfer Core

Cross-flow energy recovery core transfers heat and water vapor between the two air streams, and is easily removed for cleaning or service.

C) Air Filters

There are two permanent washable air filters. The filters lower the amount of dust and outside particulates entering the Core and your fresh air supply.

BLOWERS

STALE AIR

TO OUTSIDE

19"

(483)

14 3/4"

(375)

*NOTE: Front clearance  of 25 inches (635 mm)  is recommended  for servicing unit.

The Duct Ports

There are four duct ports on the ERV.

1) Fresh air intake port. It is connected to the exterior air intake hood using insulated duct with a vapour barrier.

2) The fresh air supply port is connected to the fresh air diffuser, which is typically located in the major living areas or connected to the return of the HVAC forced air system.

3) Stale air return port is connected to exhaust grilles or the return of the HVAC forced air system.

4) The exterior exhaust port is connected to the exterior exhaust hood using insulated duct with vapour barrier.

Note:

The ERV is recommended for areas where the temperature does not drop below 25˚F (-4˚C). The ERV does not require a condensate drain, as the water vapour is either transmitted through the exchanger core or is discharged outdoors.

Page 12

PART 1

FUNCTION & CONTROL

Models 200 & 500 Only

Operating the ControlAir 15

Plugging in the ERV energizes the unit. A self test function will be performed every time the ERV is energized (refer to “Self Test” for more details). After the self test has completed successfully the ERV will default to Speed 1. This is the factory default setting. Follow the instructions found on the ERV door to select desired mode and speed, or refer to the instructions found on the following page.

Control Module

Control Pad



ControlAir 15 Exploded view

Self Test

Each time the ERV is powered/energized the self test function will automatically initiate. During the self test the ERV will cycle through all the speeds available (1-5), test the damper motor operation and will default back to the previous mode/speed selection, (factory default is Speed 1). Total self test duration is approximately 1min 30 sec.

Automatic Defrost Operation

*Not on all Erv’s

The advanced technology of the digital microprocessor automatically activates the defrost system only as it is needed. To be an efficient heat recovery device, the ERV must effectively provide for core defrost as well as providing efficient heat exchange. As outdoor conditions cool, the temperature sensor (thermistor) tracks the supply air temperature. The thermistor then sends its signal to the microprocessor (circuit board) which initiates only the defrost cycle time required to clear the core. On recirculating defrost models, the core is defrosted when the supply air port is automatically blocked off and exhaust air is redirected back through the ERV. On damper defrost models, the core is defrosted when the supply air port is automatically blocked off and the warm air surrounding the ERV is drawn in through the defrost port. The mode indicator will flash RED during the defrost cycle. This dramatic advance makes more energy available for recovery as the unit spends less time in defrost mode. By optimizing the defrost cycle, the ERV combines money saving performance with a well designed and reliable control system.

Glossary

Removing and relocating the Control Pad

The Control Pad can be removed and installed in a remote location (100’ wire length max). The Control Pad can be installed in a 2x4 box with a “Decora” type cover plate or can be installed in the optional “Ventilation Dehumidistat” When the Control Pad is installed in a remote location all optional controls will still be wired to the Control Module on the ERV. When remotely mounted on its own, the Control Pad is wired to the Control Module by 3 wire (min. 20 gauge). When remotely mounted in the Ventilation Dehumidistat, 4 wires are required (min. 20 gauge). Connect the colour coded terminals from the Control Pad/Ventilation Dehumidistat to the corresponding terminals on the Control Module.

DEFROST MODE (

during cold weather, the ERV will automatically cycle through its defrost mode as needed.

ENERGY RECOVERY VENTILATOR (ERV) - a ventilation system that recovers energy from exhaust air, also known as an air-to-air exchanger.

RESET - whenever resetting of the ERV is required, simply disconnect the power for 30 seconds.

STANDBY MODE - the ERV is energized and waiting for fan operation to be initiated by a remote device or manual override.

THERMISTOR

electrical resistance in a known manner, as outdoor temperatures fluctuate.

*Not on all Erv’s)

- the ERV's temperature sensor which measures

-to ensure reliable operation

Page 13

To select mode of operation for ControlAir 15

Press and hold the fan selection button on the Control Pad. After 5 seconds the control will begin to cycle each mode holding each for 2 seconds. Release the button when the desired mode of operation is reached.

Modes of Operation LED Indication

OFF

Standby / On S

20 On / 40 Off

Recirculation

*Note: Not available on all HRVs

No LED’s illuminated

operation.

teady Green LED and Yellow LED to indicate speed

will run at speed selected in ventilation mode. Standby mode is indicated by no speed indicator illuminated. Optional remote controls will override standby or selected speed into high speed.

Flashing Green LED and Yellow LED to indicate speed.

ERV will operate in ventilation mode at speed selected for 20 minutes and OFF for 40 minutes.

Steady Red LED and Yellow LED to indicate Speed.

will operate in recirculate mode at the selected speed. Optional remote controls will override unit into high speed ventilate mode.

ERV is off, no controls will initiate

ERV

To select speed

Momentarily press fan selection button and release. ERV will move into next speed. OFF is indicated by no yellow LED illuminated. Speed 1 is the first yellow LED. Speed five is indicated by a flashing speed 4 LED.

Automatic Defrost

During cold outdoor conditions the ERV will occasionally go into an automatic defrost function, which will prevent ice from forming on the core. Defrost is indicated by a flashing Red LED indicator.

Not on all Erv’s

Page 14

ControlAir 15

NEW!

ControlAir 15

OPTIONAL REMOTE CONTROLS

Models 200 & 500 Only

PROGRAMMABLE VENTILATION CONTROLLER (PVC)

LOCATION: Hallway, kitchen, office

& work place

• Advanced digital remote.

• Digital dehumidistat.

• Full fan speed control. AIR SENTRY™

• Recirculation mode (on compatible HRVs).

•

• 7 day, 24 hour programmable timer.

• Digital display and status lights.

• 100' (30 m) maximum wire length .

PART NO. 99-105

Connects to RED, ORANGE, GREEN and YELLOW terminals.

*NOTE: This device is NOT compatible with the Air Sentry .

VENTILATION DEHUMIDISTAT

LOCATION: Central location in house.

• Dehumidistat activates high speed over-

VENTILATION

DEHUMIDISTAT

ride when humidity level in home exceeds setting.

• Knockout designed to accept Control

Pad when remotely mounted, giving full HRV functionality & control from remote

location.

(connect 1/unit only)

Air Quality Sensor built-in.

AIR SENTRY™ AIR QUALITY SENSOR

LOCATION: Kitchen, basement,

(connect 1/unit only).

AIR SENTRY

FAN SPEED INDICATOR

work place

• Digital Air Quality Monitor.

• Status light indicates fan speed.

• Increases ventilation to remove odours and contaminants.

• Among gases detected are cigarette smoke and formaldehyde.

IGITAL

UALITY

PART NO. 99-109

ENSOR

• 100' (30 m) maximum wire length.

Connects to RED, GREEN and YELLOW terminals.

**NOTE:

This device is NOT compatible with the PVC.

Control Module

Control Pad

• All controls wire to matching colour on the Control Module.

• Control Pad can be

removed and mounted in a remote location.

PART NO. 99-250

Connects to BLACK RED, GREEN and YELLOW terminals. *Replaces 99-116 DVC & 99-230 VRD.

*Only compatible with ControlAir 15 electronics.

DIGITAL ELECTRONIC TIMER (DET)

LOCATION: Bathrooms & kitchen

Connect up to 8 on 300

•

If a PVC or Air Sentry is used, connect

•

up to 5 on 300

' wire max.

• Touch pad operation

• 20/40/60 minute status lights

• Compact wall mount unit

• Mounts in 2x4 box Shown with “decora” cover plate

•

PART NO. 99-104

Connects to RED, GREEN and YELLOW terminals.

' (91 m) wire max

(99-107W)

•



Control Pad mounts

in a 2”x 4” box or can be mounted in the optional Ventilation Dehumidistat.

• Full fan speed control.

•

Three Modes of Operation

- Standby/ON

- 20 ON / 40 OFF

Recirculation

(on compatible HRV’s)

*See individual control instructions for more details.

0005

Page 15

Speed Selection and Controls

Model 700 and 1200 ERV only

These models are equipped with a 3 speed control, low medium and high, as well as a lighted on/off switch and a 4 screw terminal strip. The terminal strip can be used to hook up any low voltage device which will then jump the unit to high speed from whatever setting the speed control was on. The terminal strip can also be wired to allow the

from high to low from a remote location. To wire the unit in this configuration you would need two electrical on/off switches to be installed at the remote location into a double gang electrical enclosure or side by side. One should be labeled on/off and the other should be labeled high/low.

unit to be turned off from a remote location as well as

OFF

ON/OFF ONLY

LOW

HIGH

LOW/HIGH ONLY

SWITCHING FROM REMOTE LOCATION

*Supplied and Installed by Contractor*

OFF

ON/OFF/LOW/HIGH

LOW

HIGH

COMMON

ON/OFF SWITCH

3 SPEED CONTROL

HIGH

ON/OFF

Optional Remote Controls

RED BLACK ORANGE

DEHUMIDISTAT VENTILATION

CONTROL (DVC)

PART NO. 99-116

•Turns ERV ON/OFF

• Dehumidistat increases

ventilation when required

DEHUMIDISTAT

PART NO. 99-130W

•Provides high speed

ventilation when humidity

level exceeds setting

Off

60 MINUTE CRANK TIMER

PART NO. 99-101

•Provides high speed

ventilation for 60 minutes

This style of remote switching began approximately July 1997

Page 16

PAR T 2

INSTALLATION

Model 200 only

Location

The ERV must be located in a conditioned space where it will be possible to conveniently service the unit. Typically the ERV would be located in the mechanical room or an area close to the outside wall where the weatherhoods will be mounted. If a basement area is not convenient or does not exist, a utility or laundry room may be used Attic installations are not normally recommended due to:

A) the complexity of work to install B) extreme temperatures in the attic C) difficulty of access for service and cleaning

Sufficient clearance at the front of the access door is required for servicing the air filters and core. A minimum of 25" (635 mm) clearance is recommended so the door can be opened. Four PVC reinforced polyester hanging straps are provided for hanging the ERV from the basement floor joists.

Mounting

The hanging straps should be attached to the unit at the top end corners (mounting screws are already located on the ERV case). Securely fasten the other end of the straps to the floor joists with wide head nails (not supplied), making sure the unit is level. The straps are designed to reduce the possibility of noise, resonance or harmonics; therefore using the full length of the strap between the ERV and the floor joists is recommended.

WARNING:

In order to prevent electric shock when cleaning or servicing the ERV, it is extremely important to confirm the polarity of the power line that is switched by the safety (disconnect) switch. The hot line (black) is the proper line to be switched. To confirm the proper polarity, use a voltmeter or test lamp to ensure there is no power after the switch when the door is open. Check between that point and ground (on the cabinet). This must be done as dwellings are occasionally wired improperly. Always make sure that the ERV is properly grounded.

Connecting Appliances to the ERV

It is not recommended that any of the following appliances be connected to the ERV:

Lint, dust or grease will collect in the ERV, damaging the unit.

• clothes dryer

• range top

• stovetop fan

• central vacuum system

Connecting any of these to the ERV will

invalidate your warranty.

Electrical

The ERV should be plugged into a standard designated (120VAC) electrical outlet with ground. It is not recommended that an extension cord be used for this appliance. If further wiring is required, then a licensed electrician should make all electrical connections. It is recommended that a separate 15 amp/120 volt circuit be used.

Page 17

INSTALLING AIR DUCTS

A well designed and installed ducting system will allow the ERV to operate at its maximum efficiency.

Always try to keep duct runs as short and straight as possible.

When installing the weatherhood, its outside perimeter must be sealed with exterior caulking.

• At least 3' (1m) away from the corner of the building

• Not near a gas meter, electric meter or a walkway where fog or ice could create a hazard

• Not into a garage, workshop or other unheated space

See Figures 6-9 for diagrams of various installations.

Outside Weatherhoods

The fixed covered hoods have a built-in bird screen with a 1/4" (6 mm) mesh to prevent foreign objects from entering the ductwork.

Locating the Intake Weatherhood

• Should be located upstream (if there are prevailing winds) from the exhaust outlet

• At least 6' (2 m) from the exhaust weatherhood

• At least 6' (2 m) away from dryer vents and furnace exhaust (medium or high efficiency furnaces)

• A minimum of at least 6' (2 m) from driveways, oil fill pipes, gas meters, or garbage containers

• At least 18" (457 mm) above the ground, or above the depth of expected snow accumulation

• At least 3' (1 m) from the corner of the building

• Do not locate in a garage, attic or crawl space

Installing the ducting from the weatherhoods to the ERV

The inner and outer liners of the flexible insulated duct must be clamped to the sleeve of the weatherhoods (as close to the outside as possible) and the appropriate port on the ERV. It is very important that the fresh air intake line be given special attention to make sure it is well sealed. A good bead of high quality caulking (preferably acoustical sealant) will seal the inner flexible duct to both the ERV port and the weatherhood prior to clamping.

To minimize air flow restriction, the flexible insulated duct that connects the two outside weatherhoods to the ERV should be stretched tightly and be as short as possible.

Twisting or folding the duct will severely restrict air flow. See Figure 6 for the recommended connection of flexible insulated ducts to the the outside weatherhoods and the ERV.

Ducting

Locating the Exhaust Weatherhood

• At least 6' (2 m) from the ventilation air intake

• At least 18" (457 mm) above ground or above the depth of expected snow accumulation

WEATHERHOOD INSTALLATION

BELT OF OUTSIDE WALL

INSULATED FLEXIBLE

HOOD

BIRD SCREEN

Figure 4

THERMAL COLLAR

1/ Thermal Collar slides over galvanized  sleeve of Weatherhood. 2/ Fasten Thermal Collar to Belt. 3/ Slide the Insulated Flexible Ducting over  the Weatherhood’s galvanized sleeve and  fasten it to the Thermal Collar. 4/ Hood is hinged to allow for easy access  for cleaning of bird screen.

DUCTING

To maximize airflow in the ductwork system, all ducts should be kept short and have as few bends or elbows as possible. Forty-five degree elbows are preferred to 90° elbows. Use “Wye” (Y) fittings instead of "Tees" (T) whenever possible.

All duct joints must be fastened with screws, rivets or duct sealant and wrapped with a quality duct tape to prevent leakage. We recommend aluminum foil duct tape.

Galvanized ducting from the ERV to the living areas in the house is recommended whenever possible, though flexible duct can be used in moderation if so desired.

To avoid possible noise transfer through the ductwork system, a short length (approximately 12 " or 300 mm) of nonmetallic flexible insulated duct should be connected between the ERV and the supply/ exhaust ductwork system.

The main supply and return lines connected to the ERV must be the same diameter as the duct connections (or larger for extensive duct runs). Branch lines to the individual rooms may be as small as 4 inches (100 mm), but 5 inch (125 mm) lines are preferred .

All ducts running through attics and unconditioned spaces must be sealed and insulated to code.

Page 18

SUPPLY AIR DUCTING

In homes without a forced air furnace (see Fig. 7), fresh air should be supplied to all bedrooms and living areas, excluding bathrooms, kitchen and utility areas. It should be supplied from high wall or ceiling locations. Grilles that diffuse the air comfortably such as the TECHGRILLE (Fig.5) are recommended.

If the floor is the only option available, then special care should be taken in locating grilles. Areas such as under baseboard heaters will help to temper the air. Also optional inline duct heaters are available for mounting in the supply duct work to add heat if required.

In homes with a forced air furnace, you may want to connect the ERV to the furnace ductwork (see information below).

Dampers and Grilles

The use of balancing dampers and/or adjustable grilles to balance the flow rates into various rooms is recommended. We suggest TECHGRILLE air diffusers available from NUTECH (see Fig.5).

• The TECHGRILLE is a round, fully adjustable grille, which provides superior, quiet air distribution.

• Available in 4", 5", 6" and 8" diam.(100,125,150 and 200 mm).

Direct Connection to Furnace Ductwork

Should you wish to hard duct the supply air directly into the cold air return of the furnace (see Figures 7, 8, 9), remember to check the air flow balance of the ERV with the furnace fan both "ON" and "OFF" to determine that it does not imbalance the unit more than 10%. Also, it is advisable to include a short length of fabric flex duct or other non-metallic connector in this hard ducted line in order to keep the ERV separately grounded (electrically) from the furnace. This will avoid a possible shock hazard to Service People if a short to ground develops in one of the devices.

AIR FLOW

SUPPLY

Indirect Connection to Ductwork

If permitted by local codes, an indirect connection may be made between the ERV supply duct and the return plenum of the HVAC system. The fresh air from the unit may be directed at a grille installed in the cold air return duct of the HVAC system. The fresh air supply outlet from the unit should be no closer than 4 inches (100 mm) and no more than 12 inches (300 mm) from the grille.

CAUTION: An indirect connection to the return plenum is often prohibited by code. An opening in the return plenum within the same space as the furnace itself, or a water heater, may create sufficient negative pressure in the mechanical room to cause spillage of combustion gases, which can then be drawn into the return ducting and circulated throughout the dwelling. This method should be used only in cases where the furnace and water heater are directly vented appliances with 100% outside air for combustion supplied directly to the equipment.

Stale Air Exhaust System

The stale air exhaust system is used to draw air from the points in the house where the worst air quality problems occur. It is recommended that return air ducts are installed in the bathroom, kitchen, and laundry room. Additional return air ducts from strategic locations (i.e. greenhouse, atrium, swimming pool, sauna, etc.) may be installed.

An alternative method with low installation cost is to connect the ERV exhaust duct to the return duct of the HVAC system (see Fig. 9). In this method, the exhaust air is not ducted back to the ERV with "dedicated lines" from bathrooms, kitchens etc. Instead the exhaust air is drawn out of the cold air return of the forced air furnace. This method has become popular and provides good ventilation when installed in accordance with the instructions. The furnace blower must be running when the

unit is operating for this system to be effective.

We recommend the use of high mounted wall returns with grilles. The exhaust air duct from the kitchen should never be connected to a range hood. Instead, the exhaust grille should be mounted high on the wall at least 4 feet (1.2 m) horizontally away from the stove. A "flip-up", 6" X 10" (150 X 250 mm) rectangular kitchen grille with removable grease filter is available. (Grille: Part No. 10-002. Replacement filter:Part No. 10-002-2).

Removable

Dampers should be located just prior to the Energy Recovery Ventilator to balance the stale air exhausted out of the house with a fresh air supply entering the house. See "Air Flow Balancing".

AIR FLOW

EXHAUST

Figure 5: TECHGRILLE AIR DIFFUSERS

filter

Page 19

PITOT TUBE AIR FLOW BALANCING

It is necessary to have balanced air flows in an ERV. The volume of air brought in from the outside must equal the volume of air exhausted by the unit. If the air flows are not properly balanced, then:

• The ERV may not operate at its maximum efficiency

• A negative or positive air pressure may occur in the house

• The unit may not defrost properly

• Failure to balance ERV properly may void warranty

Excessive positive pressure

may drive moist indoor air into the external walls of the building where it may condense (in cold weather) and degrade structural components. May also cause key holes to freeze up.

Excessive negative pressure

may have several undesirable effects. In some geographic locations, soil gases such as methane and radon gas may be drawn into the home through basement/ground contact areas. Excessive negative pressure may also cause the backdrafting of vented combustion equipment.

Read the Application Warning on the front of this manual!

Prior to balancing, ensure that:

1. All sealing of the ductwork system has been completed.

2. All of the ERV’s components are in place and functioning properly.

3. Balancing damper are fully open.

4. Unit is on HIGH speed.

5. Air flows in branch lines to specific areas of the house should be adjusted

first prior to balancing the unit. A smoke pencil used at the grilles is a good indicator of each branch line’s relative air flow.

6. After taking readings of both the stale air to the ERV duct and fresh air to the

house duct, the duct with the lower CFM ([L/s] velocity) reading should be left alone, while the duct with the higher reading should be dampered back to match the lower reading.

7. Return unit to appropriate fan speed for normal operation.

BALANCING PROCEDURE

The following is a method of field balancing and ERV using a Pitot tube, advantageous in situations when flow stations are not installed in the ductwork. Procedure should be performed with the ERV on high speed.

The first step is to operate all mechanical systems on high speed an influence on the ventilation system, i.e. the ERV itself and the forced air furnace or air handler if applicable. This will provide the maximum pressure that the ERV will need to overcome, and allow for a more accurate balance of the unit.

Drill a small hole in the duct (about 3/16”), three feet downstream of any elbows or bends. These are recommended distances but the actual installation may limit the amount of straight duct.

The Pitot tube should be connected to a magnehelic gauge or other manometer capable of reading from 0 to 0.25 in (0 - 62 Pa) of water, preferably to 3 digits of resolution. The tube coming out of the top of the pitot is connected to the high pressure side of the gauge. The tube coming out of the side of the pitot is connected to the low pressure or reference side of the gauge.

Insert the Pitot tube into the duct; pointing the tip into the airflow. For general balancing it is sufficient to move the pitot tube around in the duct

and take an average or typical reading. Repeat this procedure in the other (supply or return) duct. (Fig. B)

Determine which duct has the highest airflow (highest reading on the gauge). Then damper that airflow back to match the lower reading from the other duct. The flows should now be balanced.

Actual airflow can be determined from the gauge reading. The value read on the gauge is called the velocity pressure. The Pitot tube comes with a chart that will give the air flow velocity based on the velocity pressure indicated by the gauge. This velocity will be in either feet per minute or indicated by the gauge. This velocity will be in either feet per minute or metres per second. To determine the actual airflow, the velocity is multiplied by the cross sectional area of the duct being measured.

, which have

This is an example for determining the airflow in a 6” duct. The Pitot tube reading was 0.025 inches of water. From the chart, this is 640 feet per minute. The 6” duct has a cross sectional area of = (3.14 X [6”/12]

The airflow is then 640 ft./min. X 0.2 square feet = 128 cfm For your convenience, the cross sectional area of some common round duct is

listed below: DUCT DIAM. (inches) CROSS SECTION AREA (sq. ft.)

5 0.14 6 0.20 7 0.27

The accuracy of the air flow readings will be affected by how close to any elbows or bends the readings are taken. Accuracy can be increased by taking an average of multiple readings as outlined in the literature supplied with the Pitot tube.

)/4

= 0.2 square feet

Figure A:

Pitot Tube Air Flow Balancing Kit

c/w magnehelic gauge, Pitot tube, hose and carry case. PART NO. 99-167

DUCT

AIR

FLOW

Pitot tube

Magnehelic gauge

MAGNEHELIC

Figure B: Pitot tube and gauge

Pitot Tube

main balancing dampers

motors

ERV

Note: for best results, keep Pitot tube will away from dampers and motor turbulence

Pitot Tube

Figure C: Placement of Pitot tube

TI-74-2-ERV

9811

Page 20

Installation Diagrams (Examples Only)

ERV

Round adjustable TECHGRILLES

Optional controls for intermittent high speed

Optional control

Figure 6

Independent Installation

Adjustable stale air return

Note: •

or other central location to outdoors

• ERV supplies outdoor air directly to each bedroom, to each floor without a bedroom and to the principal living areas

• ERV shown is for illustrative purposes only. Actual port location varies depending on model. See schematic diagrams on page 4.

ERV exhausts from kitchen and /or bathrooms

ERV access door

(on back of unit)

Adjustable fresh

air supply

Adjustable damper for balancing air flow in and  out of the house

Stale air  exhaust hood

Flexible insulated ducting with a vapour barrier

Fresh air  supply hood

Figure 7

Page 21

Installation Diagrams (Examples only)

DIRECT CONNECTION of the SUPPLY AIR STREAM to the 

FURNACE COLD AIR RETURN

EXHAUST AIR from various parts of home.

i.e. bathrooms (if required), kitchens (if required).

Balancing damper*  in both air streams.

Outdoors

*Unit is normally balanced on HIGH speed  with furnace blower ON.

NOTES:

1. Furnace blower may need to operate when ERV is on to provide good air distribution.

2. No separation requirements necessary between direct connection point and furnace.

3. Weatherhood arrangement is for drawing purposes only. 6' (2 m) minimum separation required. 18" (460 mm) above grade minimum.

4. Due to the differences in pressure between the HRV and the equipment it is being connected to, the HRV's airflow must be confirmed on site, using the balancing procedure found in this manual.

Return Air



3' min.

recommended

Cool Air

Return



Combustion

or Electric



Forced Air

Furnace



Figure 8

Outdoors

Figure 9

DIRECT CONNECTION of BOTH the ERV SUPPLY AIR STREAM and

EXHAUST AIR STREAM to the FURNACE COLD AIR RETURN

Return Air



40 inches minimum (1m) separation

Balancing damper* in both air streams.

*Unit is normally balanced on HIGH speed  with furnace blower ON.

NOTES:

1. Furnace blower is required to operate when ventilation from ERV is required. The furnace should be set to run continuously.

2. A minimum separation of 40 inches (1m) is required between the two direct connections.

3. The exhaust air connection should be upstream of the supply air connection to prevent exhausting any fresh air. 

4. Weatherhood arrangement is for drawing purposes only. 6' (2 m) minimum separation required. 18" (460 mm) above grade minimum.

5. Due to the differences in pressure between the HRV and the equipment it is being connected to, the HRV's airflow must be confirmed on site, using the balancing procedure found in this manual.

Return Air



3' min.

recommended

Cool Air

Return



Combustion

or Electric



Forced Air

Furnace



Page 22

INSTALLATION MODEL 500, 700, AND 1200 ONLY

Location for Mounting

The ERV must be located in a conditioned space where the surrounding air temperature does not effect the ERV or its ducting. The unit must be mounted level horizontal. The warranty could be void if these conditions are not met.

Typically the ERV is positioned close to an outside wall or the roof to simplify the connections and keep the length of insulated ducting required for the fresh air intake to a minimum.

A minimum clearance of 36 inches (90 cm) in front of the ERV is recommended to service the enthalpic cores and the filters. The ERV may be mounted on an equipment platform providing there is sufficient space to open the doors for servicing.

The Ductwork System

A properly designed ducting system will allow the ERV to operate at its maximum efficiency. (Air flow will be restricted by undersized ducting, use of too many elbows, tees, bends, etc.). Always try to keep duct runs as short and straight as possible.

NOTE: Fully insulated ducting with an integral

vapour barrier must be used on all runs passing through unconditioned areas in order to avoid condensation problems and energy losses from the air steams.

All joints must be airtight, sealed and impervious to moisture. See specification sheets for each unit for exact duct sizes and location.

To minimize pressure drop and noise, galvanized metal ducts, properly sized, are recommended. Keep ducting as short as possible and use a minimum of elbows and tees. Connecting sections and shorter runs may be flexible ducting one size larger than the metal equivalent. Use flexible duct connectors at the ERV to avoid noise transmission.

All duct joints must be secured with screws, rivets or duct sealant and sealed with aluminum duct tape to prevent leakage.

Page 23

Outside Weatherhoods

Stale Air Return System

The weatherhoods must have built-in “bird” screen with 1/4 in (63.5 mm) minimum mesh to prevent birds and rodents from entering into the ductwork. Do not be very susceptible to plugging up. Gravity dampers at the vents must not be used as they will restrict air flow and often “seize up”. The preferred location of the outside weatherhoods is:

• no less than 10 ft. (3 m) apart from each other

• at least 18 in ( 46 cm) above or ground level

• away from sources of contaminants, such as automobile exhaust fumes, gas meters, garbage cans, containers, etc.

• not exposed to prevailing winds, whenever reasonable possible

The outside perimeter of the weatherhood must be caulked to prevent leakage into the building.

The design and size of the weatherhoods or louvres chosen by the installer must allow for adequate free area. Water and debris penetration of the system is minimized when the airflow does not exceed 1000 FPM (5.08 m/s) free area velocity.

use smaller mesh as it will

Ducting from the Weatherhoods

The stale air return system is used to draw air from the points in the building where the worst air quality problems occur. Balancing dampers and/or adjustable grilles are recommended on all return air lines which are used during installation to help balance the “draw” from different areas of the building.

Alternately, the stale air may be drawn directly from the return air duct. When this system is used, the air handler’s blower must constantly operate. The exhaust takeoff connection must be at least a 3 ft (1 m) from a directly connected ERV supply duct if both are connected to the same duct run. Static pressure of the air handlers return system should be noted and compensated for if it is apparent that the static pressure of the return in the air handler will exceed .1 to .15” W.C.

A damper located just prior to the ERV is required to balance the stale air exhausted with the fresh air supply entering the building.

Return air suction points should be located on the opposite side of the room from the fresh air inlet. The inlets may be located in the ceiling or high on the walls and fitted with inlet grilles.

Galvanized sheet metal ducting with sufficient cross section with an integral single piece vapour barrier should be used to connect the ERV to the weatherhoods. All ducting must

meet UL Class 1 requirements.

A minimum R value of insulation should be equal to 4 (RSI 0.75)

A good bead of high quality caulking (preferably acoustical sealant) and taping with a high quality aluminum foil tape is recommended to seal the duct to both the ERV and the weatherhood.

Warmside Ducting - General

Ducting from the ERV to the different areas in the building should be galvanized metal whenever possible.

To minimize airflow losses in the ductwork system, all ducts should be as short as possible and with as few bends or elbows as possible. 45° elbows are preferred to 90° elbows. Use “Wye” (Y) fittings instead of “Tees” (T) whenever possible.

Many commercial activities produce air contaminants in the form of dusts, fumes, mists, vapours and gases. contaminants should be controlled at the source so that they are not dispersed through the building nor allowed to increase to toxic concentration levels. The energy recovery ventilator allows for economical operation of the HVAC system while effectively removing contaminants from the space. In designing the exhaust portion of the system the exhaust grilles are placed so as to remove the contaminants while not allowing them to enter the breathing zone of the occupants.

For contaminants that are lighter than air, grilles should be located high on the wall. If contaminants are heavier than air, a lower placement of the grilles will be required. Information on a contaminants specific gravity and toxicity should be available from chemical data sheets.

All duct joints mist be fastened with screws, rivets or duct sealant and wrapped with a quality duct tape to prevent leakage. We recommend aluminum foil tape.

Page 24

Fresh Air Supply System

The Integrated HVAC System

The fresh air supply ductwork from the ERV may be directly connected to the return air duct of the forced air system. Check the air flow balance of the ERV with the air handler blower both “ON” and “OFF” to determine that it does not imbalance the ERV more than 10%. Also, it is advisable to include a short length of flex duct or other non-metallic connector in this hard ducted line in order to keep the ERV acoustically isolated and separately grounded (electrically) from the air handler. This will avoid a possible shock hazard to service people if a short to ground develops in one of the devices.

It may be necessary to install a separate fresh air supply ductwork system if the heating is other than forced air.

When installing an ERV, the designer and installer should be aware of local codes that may require smoke detectors and/or firestats in the HVAC or ERV ductwork.

Because an ERV is designed to bring fresh air into the building, structures may require supply voltage interrupt when smoke or flame sensors are triggered, or when a central fore alarm system is activated.

Supply air grilles may be ceiling or high wall mounted. Avoid locating incoming fresh air grilles that could cause a direct draft on the occupants.

The use of balancing dampers or adjustable grilles to balance the flow rates into various rooms is recommended.

The use of balancing dampers or adjustable grilles as supply air diffusers and air exhaust covers are recommended. TECHGRILLES™ are round, efficient, sound absorbing devices available in 4”, 5”, 6” and 8” (100, 125, 150, and 200 mm) models.

The ERV has become an integral component of the HVAC system. Figure A shows an ERV unit providing fresh air directly to the return air plenum of a rooftop unit.

In the balanced airflow system, the ERV exhaust removes stale room air (eg. from lunch room, storage or copy area) and returns to the space an equal amount of fresh outdoor air, making the use of an economizer obsolete in conjunction with an ERV.

Many buildings have ceiling return air plenum as in Figure B. Fresh air from the ERV can be introduced directly into the ceiling space but this should occur near the air handler’s intake.

By operating the ERV on a 24 hour/7 day battery backed timer the unit can be set to operate only when occupancy or indoor conditions require the air exchange.

In installations where it is satisfactory to provide general exhaust from the space, the air to be exhausted may be taken directly from the return air plenum to the ERV as it is drawn back to the air handler. Fresh air supplied by the ERV is then introduced directly into the return air plenum but at a location closer to the air handler. The air handler would have a constant running blower to effectively distribute the fresh air and remove the stale air. Balancing dampers would be located in both the ERV supply and exhaust ducts between the return air plenum and the ERV.

NOTE: At no time should the air handler T.E.S.P. on the return duct exceed that of the ERV. Supply Air T.E.S.P.

AIR FLOW

SUPPLY

AIR FLOW

EXHAUST

Figure

TECHGRILLE™ (optional) schematic

Page 25

ECONOMIZER (DISABLED)

ROOFTOP

UNIT

STALE AIR EXHAUST

FRESH AIR SUPPLY

Figure 6A

ERV UNIT

RETURN AIR DUCT or

B.D.

ERV FRESH AIR SUPPLY

SUPPLY DUCT

BREATHER T

B.D.

STALE AIR EXHAUST TO ERV

ECONOMIZER (DISABLED)

STALE AIR EXHAUST

FRESH AIR SUPPLY

Figure 6B

ROOF DECK

CEILING RETURN AIR PLENUM

ERV UNIT

ERV FRESH AIR SUPPLY

ROOFTOP

UNIT

12" BREATHER

SPACE

B.D.

STALE AIR EXHAUST

SUPPLY DUCTWORK

Page 26

Various Installation Types

Figure 7A

Saddle Installation

Hang unit with suspended rods and "U" channel members.

Vibration Isolators

Threaded  rod and U channel (Supplied by others)

(Supplied by others)

*NOTE:

 When installing your ERV,

 flexible duct connectors should  be installed between the ERV  and the galvanized ductwork.

Figure 7B

Curb Mounted

Figure 7C

Suspended

Unit Suspended using  Polyester reinforced PVC support straps.

PVC Support Straps (Supplied by others)

Curb is wood or metal (Supplied by others)

Mount unit on wooden or metal curb assembly. Unit must be raised an adequate height for installation  and slope of drain lines.

May be anchored to  floor,leaving space  for drain connections 

Vibration Isolators (Supplied by others)

Page 27

TROUBLESHOOTING YOUR ERV SYSTEM

Symptom

Poor air flow

Supply air inlet feels cold (a problem if it affects the occupant in the normal living environment, not just cold air at the supply grille itself

Humidity levels are too low

Cause

• Mesh on outside hood is plugged

• Filters plugged

• Cores obstructed

• House grilles closed

• Dampers closed

• Low voltage at site

• Ductwork too long, excessive number of bends

• Improper speed control setting

• Improper balancing of ERV airflows

• Poor location of air supply grilles, cause discomfort

• Outdoor temperature below 25°F (-4°C)

• Excessive infiltration through house leakage

• ERV speed set too high

• Dehumidistat set too low

• ERV improperly balanced

• Lifestyle of occupants, generate little indoor humidity

Solution

• Clean exterior hoods or vents

• Remove and clean filters

• Remove and clean core (vacuum or blow out;

• Open and adjust grilles

• Open and adjust dampers

• Have electrician check voltage

• Have HVAC contractor check ducting

• Increase speed setting

• Have HVAC contractor re-balance system

• Relocate air supply grilles so airflow does not

• A small duct heater may be added to the supply

• Weather-strip, caulk and seal opening through

• Lower ERV speed setting.

• Set dehumidistat higher.

• Have HVAC contractor re-balance system.

• May need to install a humidifier.

do not wash)

affect occupant. Adjust grille so that airflow is entrained along wall or ceiling. (Note, closing the grille too far will cause the air to be directed downward from a ceiling, rather than along the ceiling.

air ducting to boost temperature. If supply air is ducted to the furnace return, the furnace fan may not need to run at low speed continuously.

wall, ceiling, at doors and windows to the exterior.

Humidity levels are too high

Dehumidistat not working

ERV or ducts to indoors frosting

Condensation or frost in insulated duct to exterior

• Dehumidistat is set too high

• ERV speed set too low

• ERV not operating continuously

• Presence of strong sources of moisture: indoor

• Improper connection

• Wiring to remote dehumidistat may have been

• Dehumidistat may be turned off

• ERV operating at too low speed

• ERV not properly balanced

• ERV undersized, allowing indoor humidity to rise

• Incomplete vapor barrier on insulated duct

• Tear or hole in vapor barrier on insulated duct

pool, hot tub, unvented crawl space

damaged by staple or nail

• Lower dehumidistat setting.

• Set ERV speed higher.

• Operate ERV continuously.

• Maintain cover on pool, hot tub when not in use. Note: an ERV is not designed to provide dehumidification of indoor pools, etc.

• Consider an HRV instead.

• May need to install and/or operate additional exhaust fans for use in kitchens and baths for short durations.

• Check that correct terminals have bee used.

• Check wiring for a short.

• Set dehumidistat to desired level.

• Set ERV to higher speed

• Have HVAC contractor re-balance system.

• Add additional ventilation, or change to HRV, ERV recommended for regions where the temperature does not drop below -4°C (25°F).

• Replace or repair tears, holes in vapor barrier, tape all joints in outer covering

Page 28

Maintenance Routine

(1) Inspect Exterior Hoods

Make sure exhaust and fresh air supply hoods are not blocked up or restricted by leaves, grass or dirt.

WARNING: Blockage of hoods may cause a pressure

imbalance.

at least once a month

(2) Clean Air Filters Four Times a Year

The standard filters equipped with your ERV are removable and washable.

(A) simply open access door and slide core out (refer to core

maintenance).

(B) remove filter clips.

* Note approximate location and attachment of clips so that

they can be returned the same way.

rinsed with water or a combination of soap and water. (D) to assemble, place clean dry filters back into their positions. (E) install core to its original position

(3) Clean Core Twice a Year

(A) open access door (B) grip ends of core and pull evenly outward. Core may be

snug, but will slide out of the channel.

maintenance).

(D) vacuum core to remove dust from core surface.

DO NOT WASH!!

r(E) install the clean, dry filters r(F) install clean core

To install the clean core:

(A)

first mount the bottom flange of the core guide into the bottom H

channel approximately 1/4" (6 mm)

(B) mount the left or right side flange of the core guide approxi-

mately 1/4" by the other side

approximately 1/4"

(D) with all four corners in place and the core straight and even,

push hard in the center of the core until the core stops on the back of the cabinet.

(6 mm)

followed

(6 mm)

(6) General Maintenance - Twice a Year

Wipe down the inside of the cabinet with a damp cloth to remove dirt, bugs and debris that may be present.

(7) Cleaning the Fans

Fans accumulate dirt causing an imbalance and/or excessive vibration of the ERV. A reduction in the air flow may also occur. In new construction this may result within the first year due to heavy dust and may occur periodically after that over time depending on the outdoor conditions.

• unplug the ERV and open the service door

• remove the Core

• remove ducting (metal and/or flexible insulated type) from the red and/or blue ports which are connected immediately inline with the fan assembly

• use a small brush, such as an old toothbrush or pipe cleaner, and insert first

(a) through the large opening of the fan

assembly and then

(b) through the smaller opening in the end

of the fan assembly. (see figure 4)

• scrub individual fan blades until clean. Avoid moving or damaging balancing flat weight, clip is usually found on one or more of the fan blades

• vacuum and wipe

• reassemble making sure ducting is reattached firmly and insulation and moisture barrier are sealed and taped

NOTE: Core will appear to stick out from cabinet approximately 1/8"

(3 mm)

fit tight against the core.

. This is designed this way so that the access door will

(4) Motors - MAINTENANCE FREE (5) Clean Duct Work if Required

The duct work running to and from the ERV may accumulate dirt. Wipe and vacuum the duct once every year. You may wish to contact a Heating/Ventilation company to do this.

Figure 10

* * Before attempting this task, thought should be given to

having a qualified service technician complete the service work.

Page 29

HRV RESIDENTIAL

RESIDENTIAL ERV WIRING

WIRING DIAGRAM

MICRO PROCESSOR BOARD

TO DISABLE

RECIRCULATION

REMOVE SEL2

REMOVE SEL1

WARNING

750 ma

MAX FUSE

1 2

T5 T4 T3

FOR R-2000

GROUND

SEL2

SEL1

DRY

CONTACT

CHASSIS

FAN O/P

LINE

NEUTRAL

THERMIST0R

INTERNAL

DEHUMIDISTAT

N/C

COMMON

N/O

SEE

DEFROST

DETAIL

DOOR SWITCH

BLK

120V POWER SUPPLY CORD

YEL GRN ORN RED BLK

CONTROLAIR 15

Note: All control connections are labeled by colour. Connect to corresponding colour with low voltage wire ( 20 gauge minimum).

T15

AUTOTRANS FORMER

T9 T10 T11 T12 T13 T14

WHITE

BLACK

GRN

FAN MOTOR DETAILS

T12

T13

WHITE

BLK

RED

GRN

ORG

YEL

WHITE

CAPACITOR

SEE MOTOR DETAIL

LEGEND

HIGH VOLTAGE 12V LOW VOLTAGE FIELD INSTALLED

12V LOW VOLTAGE

IMPORTANT: Control Low Voltage is 12VAC DO NOT CONNECT EXTERNAL POWER SOURCES TO UNIT

DEFROST DETAILS

PCB PLUG - IN

PIN 1 - BLACK PIN 2 - ORANGE PIN 3 - RED PIN 4 - SPARE

ORANGE

BI-DIRECTIONAL DAMPER MOTOR

RED

BLK

PLUG IN CONNECTOR

BLK

ORANGE

RED

Note: If any of the original wire as supplied with the unit must be replaced, use only TEW certified wire

MAXTOP ONLY

PLUG IN CONNECTOR

BLK

ORANGE

RED

BI-DIRECTIONAL DAMPER MOTOR

ORN

RED

BLK

PCB PLUG - IN

SNUBBER BOARD

PIN 1 - RED PIN 2 - ORANGE PIN 3 - BLACK PIN 4 - SPARE

BLK RED

ORANGE

FAN MOTOR

DIRECT MOUNTED CAPACITOR

AUTO-TRANSFORMER DETAIL

PLUG IN CONNECTOR

ORANGE

BLK

RED

1 2 3

1 2

PIN 1 - GREEN PIN 2 - GREEN

PLUG IN CONNECTOR

BLK

ORANGE

RED

AUTO

TRANSFORMER

PCB PLUG - IN

PIN 1 - RED PIN 2 - ORANGE PIN 3 - BLACK PIN 4 - SPARE

4 5 6

PIN 1 - BLUE PIN 4 - RED PIN 2 - YELLOW PIN 5 - WHITE PIN 3 - BROWN PIN 6 - BLACK

95MAX ONLY

BI-DIRECTIONAL DAMPER MOTOR

TI-89A-NE

0006

Page 30

WIRING DIAGRAM 500 (DAMPER DEFROST)

MICRO PROCESSOR BOARD

TO DISABLE 

RECIRCULATION

REMOVE SEL2

REMOVE SEL1

WARNING

750 ma

MAX FUSE

T5 T4 T3

FOR R-2000

GROUND

SEL2

SEL1

DRY

CONTACT

CHASSIS 

FAN O/P

LINE

NEUTRAL

N/C

COMMON

N/O

SEE 

DEFROST

DETAIL

T15

THERMIST0R

INTERNAL

DEHUMIDISTAT

DOOR SWITCH

AUTOTRANS FORMER

BLK

CONTROLAIR 15

120V POWER SUPPLY CORD

YEL GRN ORN RED BLK

Note:  All control connections  are labeled by colour.  Connect to corresponding  colour with low voltage wire  ( 20 gauge minimum).

FAN MOTOR DETAILS

T13

T11

BLK

GRN

WHITE

YEL

ORG

CAPACITOR

T10

WHITE

T11

T12 T13 T14

WHITE

BLACK

GRN

FAN MOTOR

SEE MOTOR DETAIL

LEGEND

HIGH VOLTAGE 12V LOW VOLTAGE FIELD INSTALLED

12V LOW VOLTAGE

IMPORTANT: Control Low Voltage is 12VAC DO NOT CONNECT EXTERNAL POWER SOURCES TO UNIT

DEFROST DETAILS

24VAC

transformer

WHITE

PCB PLUG - IN

RED

CCW

WHITE

COM

YELLOW

DAMPER MOTOR

24VAC WIRING

DAMPER DEFROST

WIRE CONNECTOR

120V

WHITE

N/C

RELAY COM

N/O

BLACK

PIN 1 - SPARE PIN 2 - BLACK PIN 3 - WHITE PIN 4 - SPARE

Note: If any of the original wire as supplied with the unit must be replaced, use only TEW certified wire

AUTO-TRANSFORMER DETAIL

T 7

T 10

PLUG IN CONNECTOR

P5 4 5 6

PIN 1 - BLUE PIN 4 - RED PIN 2 - YELLOW PIN 5 - WHITE PIN 3 - BROWN PIN 6 - BLACK

T14

T12

BLK

GRN

WHITE

YEL

ORG

CAPACITOR

FAN MOTOR

1 2 3

1 2

PIN 1 - GREEN

PIN 2 - GREEN

AUTO

TRANSFORMER

TI-126-NE

0005

Page 31

110 VAC

POWER SUPPLY

BLACK

WHITE

LINE

NEUT

ON/OFF

GREEN

GND.

WHITE

HIGH

TERMINAL

BLOCK

COMMON

24V

TERMINAL BOARD

WHITE

BLACK

Defond Switch

BROWN

BLACK

ON/OFF

SWITCH

YELLOW

BROWN

Carling Switch

WHITE

RED

BLUE

BLACK

3 SPEED CONTROL

BLACK

INTAKE

(CCW)

PURPLE

700 STYLE

UNITS ONLY

YELLOW

PURPLE

TI-107

GND.

0002

SWITCH

BLACK

DOOR

INTERLOCK

TRANS-

FORMER

DEFROST

LIGHT

INDICATOR

ORANGE

BLACK

BLACK BLACK

WHITE

BLACK

BLACK WHITE

WHITE

COM

120V RELAY

ORANGE

COM

N/C N/O

BLACK

N/C N/O

WHITE

24V RELAY

WHITE

ORANGE

COM

BLACK

N/C N/O

BROWN

BLUE

TERMINAL

BLOCK

WHITE WHITE

WHITE

BROWN

BLUE

TERMINAL

BLOCK

WHITE

BLACK BLACK BLACK

WHITE

BLUE

BLACK

RED

WHITE

YELLOW

BLACK

BLUE

BLACK

WHITE

BLACK

RED

YELLOW

PURPLE

YELLOW

EXHAUST

(CW)

CAPACITORS FAN MOTOR

CAPACITORS

FAN MOTOR

PURPLE

LOWER

FAN MOTOR GREEN

UPPER

FAN MOTOR

GND. GREEN

BLACK

DEFROST

TIMER

700 STYLE

UNITS ONLY

BLACK

Remote Switching

Analogue Style

Controls

Wiring Diagram

TEMPERATURE SENSOR

FAN DEFROST

For Models:

700, 850,1200

Page 32

TFP

- Nutech’s ULTIMATE Air Cleaner System

TURBULENT FLOW PRECIPITATOR

AIR CLEANER

Features & Benefits

• Cleans home of airborne particles down to 0.1 microns for up to 5 years with little or no maintenance.

• Removes 99.9% of all allergy and hay fever causing pollen and spores.

• Removes 97.5% of all airborne house dust in less than 24 hours in a modern tight home.

• Uses the newly discovered, patented TFP (Turbulent Flow Precipitator) process.

• Unlike all other air cleaners, the efficiency of particle removal does not diminish significantly over time.

• Easy to install on air handler ducting, ERV ducting or free standing.

• Very quiet EBM high efficiency motor, standard 120 VAC.

• Tested by an independent lab to ASHRAE 52.1 (the accepted standard in air cleaning).

Today’s tightly built homes need help. They require that the air inside be cleaned constantly to prevent the development of asthma and allergies. The TFP Air Cleaner can remove 97.5% of airborne particles in 24 hours in a modern tight home. Now you can assure your family and yourself that the air in your home is clean.

INSTALLING THE TFP

Mounting bracket

The TFP Air Cleaner is a versatile device with many possible installation methods to suit a variety of applications. Two of the most common are shown below.

EXAMPLE 1

TFP is connected to return of forced air furnace to clean air in house.

EXAMPLE 2

TFP is connected to fresh air supply of ERV, cleaning incoming air form outside.

Foam gaskets

Air Flow

Supply Plenum

FURNACE

Handler

Air

Install plate here

1" Height

T F P

Ducting (not included)

Clean (filtered) air port

FLOOR JOISTS

Mounting bolts

Hanging straps (4)

Cold Air Return

Support bracket

Air flow direction

6" port collars

Access door

Power supply

Mounting bracket

Relief opening

(breathing T)

or leave a 4’ - 6"

gap between the

TFP and the ERV

ERV

Flexible ducting

(fresh air supply)

6" port collars

TFP

Access door

Power cord

Main supply trunk

Air flow

To BRANCH LINES

Flexible ducting

TFP air cleaner