Venmar PRO225, PRO250 Installation And User Manual

Installation and User Manual

PRO225 & PRO250

HEAT RECOVERY VENTILATORS

READ AND SAVE THESE INSTRUCTIONS

Venmar Ventilation inc., 550 Lemire Blvd., Drummondville, QC, Canada J2C 7W9

www.venmar.ca

VB0121

These products earned the
ENERGY STAR®by meeting strict
energy efficiency guidelines set by
Natural Resources Canada and the
US EPA. They meet ENERGY STAR
requirements only when used
in Canada.

08305 rev. C

2

!

TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSON(S)
OBSERVE THE FOLLOWING:

1. These units are intented for residential installation only.

2. Use these units only in the manner intended by the manufacturer. If you have questions,

contact the manufacturer at the address or telephone number listed in the warranty.

3. Before servicing or cleaning the units, disconnect power cord from electrical outlet.

4. Installation must be done in accordance with all applicable codes and standards, including

fire-rated construction codes and standards.

5. These units are not designed to provide combustion and/or dilution air for fuel-burning

appliances.

6. When cutting or drilling into wall or ceiling, do not damage electrical wiring and other

hidden utilities.

7. Do not use these units with any solid-state speed control devices other than the Breeze

main control for the PRO250 unit exclusively or the 11136 main control for PRO225 unit.
The optional auxiliary control 20-minute lighted push button can be used with both
PRO250 and PRO225 units.

8. These units must be grounded. The power supply cord has a 3-prong grounding plug for

your personal safety. It must be plugged into a mating 3-prong grounding receptacle,
grounded in accordance with the national electr ical code and local codes and
ordinances. Do not remove the ground prong. Do not use an extension cord.

9. Do not install in a cooking area or connect directly to any appliances.

10. Do not use to exhaust hazardous or explosive materials and vapors.

11. Do not run any air ducts directly above or closer than 2 ft (0.61 m) to any furnace or

its supply plenum, boiler, or other heat producing appliance.

12. When performing installation, servicing or cleaning of these units, it is recommended to

wear safety glasses and gloves.

13. When applicable local regulations comprises more restrictive installation and/or

certification requirements, the aforementioned requirements prevail on those of this
document and the installer agrees to conform to these at his own expenses.

CAUTION

1. To avoid premature clogged filters, turn OFF the unit during construction or renovation.

2. Please read specification label on product for further information and requirements.

3. Be sure to duct air outside – Do not intake or exhaust air into spaces within walls or

ceiling or into attics, crawl spaces, or garage.

4. Intended for residential installation only in accordance with the requirements of NFPA 90B.

5. The ductwork is intended to be installed in compliance with all applicable codes.

6. Do not use the PRO250 or PRO225 unit when varnishing. The varnish vapors may

damage these units.

7. At least once in a year, the unit mechanical and electronic parts should be inspected

by qualified service personnel.

8. During snow/rain storm, operate the PRO250 unit in recirculation mode to prevent water

build up in the heat recovery ventilator. Tur n OFF the PRO225 unit.

WARNING

1. FUNCTIONS OF YOUR HEAT RECOVERY VENTILATOR..........................4

1.1 Air Exchange...............................................................................................4

1.2 Heat Recovery ............................................................................................4

1.3 Recirculation (PRO250 only).......................................................................4

2. DIAGRAMS OF AIRFLOWS...............................................................5

3. DESCRIPTION OF THE UNIT .............................................................6

4. UNITS INSTALLATION ................................................................7-13

4.1 Installation Types with Required Installation Kit..........................................7

4.2 Locating and Mounting the Unit ..................................................................8

4.3 Tools and Materials .....................................................................................8

4.4How to Hang the Unit..................................................................................8

4.5 Planning of the Ductwork ............................................................................9

4.6Installing Non-Insulated Flexible Ducts and Registers ..........................9-10

4.7 Connecting Insulated Flexible Ducts to the Unit Ports..............................11

4.8 Locating Exterior Ports..............................................................................12

4.9 Connecting Insulated Ducts to EXterior Ports ...........................................12

4.10 Connecting the Drain ................................................................................13

5. CONTROLS ............................................................................13-16

5.1 Integrated Control .....................................................................................13

5.2 Controls Connection to the Unit...........................................................14-15

5.3 Main Control Installation............................................................................16

6. OPERATING CONTROLS ..........................................................17-18

6.1 Breeze Main Control (PRO250 only) ........................................................17

6.2 11136 Main Control (PRO225 only)..........................................................18

6.3 20-minute Lighted Push Button Optional Auxiliary Control

(PRO250 & PRO225)..........................................................................................18

7. MAINTENANCE ............................................................................19

7.1 Regular Maintenance ................................................................................19

7.2 Annual Maintenance .................................................................................19

8. TROUBLESHOOTING .....................................................................20

TABLE OF CONTENTS

Congratulations!

You have made an excellent choice!
The operating principle of your Heat Recovery Ventilator will protect your house and give
you personal comfort you have never known before.

We have prepared this Manual especially for you. Please read it carefully to ensure you
obtain full benefit from your Heat Recovery Ventilator unit.

Please take note this manual uses the follo wing symbols to emphasize particular information:

NOTE: Indicates supplementary information needed to fully complete an instruction.
We welcome any suggestions you may have concerning this manual and/or the unit, and we

would appreciate hearing your comments on ways to better serve you. Please forward all
correspondence to us at the address indicated on the product registration card included with
this manual.

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.

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1.1 AIR EXCHANGE (PRO250 & PRO225)

4

1. FUNCTIONS OF YOUR HEAT RECOVERY VENTILATOR

Your PRO250 or PRO225 Heat Recovery Ventilator eliminates the excessive humidity
problems by exhausting stale and humid air to the outside and by drawing in fresh air. Either
unit offers superior air quality and fresh air sensation, an important factor to overall comfort,
by eliminating the accumulation of

pollutants and humidity.

These units also come equipped with a heat recovery core which reduces ventilating costs
in winter.

The PRO250 and PRO225 Heat Recovery Ventilators are ventilation systems which carry
out the following operations:

During winter, these units recover the heat contained in the stale air before it is exhausted,
and transfer it to the fresh air drawn from the outside (reverse process in summer).

These units exhaust stale and humid air from the house and replace it with fresh air from
the outside.

1.2 HEAT RECOVERY (PRO250 & PRO225)

Example (in winter):

VF0015

STALE AIR TO OUTSIDE

4°C/39°F

FRESH AIR FROM OUTSIDE

0°C/32°F

FRESH AIR TO BUILDING
18°C/64°F

STALE AIR FROM BUILDING
22°C/72°F

1.3 RECIRCULATION (PRO250 ONLY)

During the recirculation mode, this unit stops to exchange air with the exterior. Continuous
recirculation is thus undertaken inside the home and insures the purification of the ambient
air. Tw o mechanical filters trap the large dust particles (those visible to the eye).

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2. DIAGRAMS OF AIRFLOWS

The direction of the airflows is indicated in each of the following diagrams. Please note that
the stale air never mixes with the fresh air.

DURING

AIR EXCHANGE

VF0045

FRESH AIR

FROM OUTSIDE

FRESH AIR

TO BUILDING

STALE AIR

FROM BUILDING

STALE AIR

TO OUTSIDE

DURING

DEFROST MODE

OR

RECIRCULATION

(PRO250 ONLY)

VF0046

FILTERED AIR

TO BUILDING

STALE AIR

FROM BUILDING

3. DESCRIPTION OF THE UNIT

6

VL0035

16

14

8

11

9

3 214

10

9

11

8

13

12

6

5

7

12

15

1 Exhaust port: exhausts stale air to the outside, after the air has transferred its

heat inside the heat recovery core.

2 Fresh air port: brings fresh air from the outside into the unit.
3 Stale air intake port: is connected to the registers located in the larger rooms of the

house.

4 Distribution port: distributes fresh air into the house, after it has absorbed the

heat of the stale air in the heat recovery core.

5 Main damper: allows fresh air intake when open and defrost when closed.
6 Secondary damper: allows stale air to exhaust when open and prevents negative

pressure when closed, in defrost mode.

7 Automatic defrost

unit :

consists of one damper actuator, dampers and related controls.
The defrost cycle is electronically controlled in response to the
outside temperature (-5°C [23°F] to -27°C [-17°F] or coldest)
and will increase in frequency as the temperature decreases.
Its duration is of 7 or 10 minutes.

8 Adjusting tools (2): adjust the dampers (one on each side) in balancing process.

Lock them in place once the unit is balanced.

9 Mechanical filters (2): trap the dust contained in the air and prevents the heat

recovery core from becoming obstructed.

10 Heat recovery core: is a crossflow type. It transfers the heat between the two air

streams.

11 Blowers (2): draw fresh air from the outside and exhaust stale air to the outside.
12 Condensation tray: is used to capture the water produced during heat transfer and

defrost (in cold climate).

13 Electrical cord: for 120 V electrical supply.
14 Electrical box: contains capacitors (indispensable to proper motors operation)

and electronic control circuit (insures proper operation of the
unit).

15 Terminal connector: located under the unit, allows to connect the controls.
16 Drainage tube: is connected to the condensation tray and serves to drain the

water accumulation.

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4. UNIT INSTALLATION

4.1 INSTALLATION TYPES WITH REQUIRED INSTALLATION KIT

Here are the types of installation and installation kit needed depending on your house.

BUNGALOW

• LATERAL STAIRWAY

• OPEN BASEMENT STAIRWELL

BUNGALOW

• CENTRAL STAIRWAY

• OPEN BASEMENT STAIRWELL

2-STORIED HOUSE

• OPEN BASEMENT STAIRWELL

MULTI-LEVEL HOUSE

• 4 LEVELS

BUNGALOW

• LATERAL OR CENTRAL STAIRWAY

• CLOSED-IN BASEMENT STAIRWELL

2-STORIED HOUSE

• CENTRAL STAIRWAY

• CLOSED-IN BASEMENT STAIRWELL

Basement installation kit no. CH30115.

Basement installation kit no. CH30115
with one additional register (not included).

Basement installation kit no. CH30115
with additional multi-level kit
no. UT 2004.

Basement installation kit no. CH30115
with 3 or 4 floor registers (4” x 10”, not
included).

Basement installation kit no. CH30115
with 3

or 4 floor registers (4” x 10”, not

included).

Basement installation kit no CH30115
with additional multi-level kit
no. UT 2004.

4. UNIT INSTALLATION (CONT’D)

4.2 LOCATING AND MOUNTING THE UNIT

Choose an appropriate location for the unit:

• Within a heated area of the house (10 °C/50 °F or more)

• Away from living areas (dining room, living room, bedrooms), if possible

• So as to provide easy access for filter maintenance

• Close to an exterior wall, so as to limit the length of the insulated flexible ducts to
and from the unit

• Close to a drain. (If no drain is close by, use a pail to collect run-off)

• Away from hot chimneys, electrical panel and other fire hazards

• Allow for a power source (standard 3-prong grounding outlet)

Use the 4 chains and springs (from the hardware pack included with the unit) to hang the
unit to ceiling joists.

• Robertson no. 2 or
Phillips no. 2 screwdriver

• Cutter pliers

• Drill

• Jig saw

• Duct tape

• Caulking gun with a tube of silicone

sealant

•Metal shears (if the exterior covering is
aluminum or vinyl)

• Chisel and hammer (if the exterior covering
is brick)

4.3 TOOLS AND MATERIALS

4.4 HOW TO HANG THE UNIT

CAUTION

Make sure the unit is level.

VD0204

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