Venmar HRV CONSTRUCTO 2.0ES User manual

USER MANUAL
RESIDENTIAL USE ONLY
ADDRESS OF YOUR INSTALLER
20505 REV. 02
ERV CONSTRUCTO 2.0ES
*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.
HRV CONSTRUCTO 2.0ES*
VB0170
VB0175
HRV CONSTRUCTO 1.5ES*

2
ABOUT THIS MANUAL / PRODUCT
The purpose of this manual is to help you with the use of your unit. Section 2 (Controls) shows you
how you can operate the unit in no time. Section 3 deals with maintenance and explains how to
maintain the unit to ensure maximum operation and performance. In Section 4 (Troubleshooting),
you will learn how to solve minor problems; plus other important information which we urge you to
read.
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’s registration card included with this manual.
This manual uses the following symbols to emphasize particular information:
NOTE: Indicates supplementary information needed to fully complete an instruction.
Finally, we want to congratulate you on your purchase of this excellent unit which will allow you and
your family to enjoy fresh air throughout your home for years to come!
WARNING
Identifies an instruction which, if not followed, might cause serious personal
injuries including possibility of death.
Denotes an instruction which, if not followed, may severely damage the unit
and/or its components.
!
Some activities create dust or vapors which may damage your unit. You must
therefore turn off and unplug your unit in the following situations:
• Major renovation work • Sanding (e.g. gypsum joints, etc.)
• Housing construction • Varnishing
During very heavy snowstorms or rain with strong winds, the unit should also
be turned off to avoid problems caused by snow or rain entering the unit, even if
it is equipped with an anti-gust intake hood.
Power disturbances or very short power failures may cause the electronic
control microprocessor to malfunction. If it does, disconnect the power plug
from the outlet and wait approximately 30 seconds, then plug it back in to
resume operation.
REPLACEMENT PARTS AND REPAIRS
In order to ensure your ventilation unit remains in good working condition, you must use Venmar
Ventilation Inc. genuine replacement parts only.The Venmar Ventilation Inc. genuine replacement
parts are specially designed for each unit and are manufactured to comply with all the applicable
certification standards and maintain a high standard of safety. Any third party replacement part
used may cause serious damage and drastically reduce the performance level of your unit, which
will result in premature failing. Also, Venmar Ventilation Inc. recommends to contact a certified
service depot for all replacement parts and repairs.
CAUTION
CAUTION

3
1. YOUR UNIT AND ITS PURPOSE........................................... 4-6
1.1 UNIT DESCRIPTION .......................................................................4
1.2 PURPOSE OF THE VENTILATION SYSTEM ...................................................4
1.3 RECOVERY ..............................................................................5
1.3.1 HEAT RECOVERY CORE ...................................................................... 5
1.3.2 ENERGY RECOVERY CORE.................................................................... 5
1.4 DEFROST MODE .........................................................................5
1.5 SPECIFICATIONS .........................................................................6
2. CONTROLS .................................................................6-10
2.1 INTEGRATED CONTROL ....................................................................6
2.1.1 BOOT SEQUENCE ........................................................................... 6
2.2 OPTIONAL MAIN CONTROLS ............................................................7-9
2.2.1 DECO-TOUCH ............................................................................. 7-9
2.2.2 LITE-TOUCH CONSTRUCTO................................................................... 9
2.2.3 CONSTRUCTO ............................................................................... 9
2.3 OPTIONAL AUXILIARY CONTROLS ....................................................... 10
2.3.1 DEHUMIDISTAT .............................................................................10
2.3.2 20-MINUTE LIGHTED PUSH-BUTTON ........................................................10
2.3.3 60-MINUTE CRANK TIMER..................................................................10
3. MAINTENANCE ............................................................10-12
3.1 EVERY THREE MONTHS ..............................................................10-11
3.2 ANNUAL MAINTENANCE (FALL)........................................................... 11
3.2.1 HEAT RECOVERY CORE .....................................................................11
3.2.2 ENERGY RECOVERY CORE...................................................................12
4. TROUBLESHOOTING ....................................................... 12
TABLE OF CONTENTS

4
1. YOUR UNIT AND ITS PURPOSE
1. Filters
2. Blower
3. Recovery core
4. Condensation tray
1.1 UNIT DESCRIPTION
VL0052
Your ventilation system is designed to provide fresh air, warmed outdoor air to your home while
exhausting stale, humid air from your home. By eliminating accumulated pollutants and humidity, it
maintains an optimum air quality and an ideal relative humidity.
1.2 PURPOSE OF THE VENTILATION SYSTEM
VH0078
NOTES: 1. Shown with a forced air system. Can also operate on its own.
2. Installation may vary according to the model number.
1
1
23
4

5
Units with a heat recovery core (HRV Constructo 1.5ES and HRV Constructo 2.0ES units) are
designed specifically to control excess humidity and reduce ventilation costs by recovering the
heat energy from the exhausted air, and using that same heat energy to warm the fresh air being
supplied.This heat recovery process is accomplished in such a way that the stale air is never mixed
with the fresh air.
1.3 RECOVERY
EXAMPLE (IN WINTER)
VF0026
OUTSIDE
INSIDE
Stale air to outside
6°C/42°F
Fresh air from outside
0°C/32°F
Fresh air to building
16°C/61°F
Stale air from building
22°C/72°F
Fresh air
from outside
The ERV Constructo 2.0ES unit is equipped with an energy recovery core (enthalpic core) that can
reduce ventilation costs in winter as well as in summer.
1. During heating season, the unit draws humidity and heat from the stale air and transfers them,
in part, to the cold air entering the house, thus avoiding dryness problems and providing
maximum comfort (Example 1).
2. During cooling season, the unit reverses the process, preventing humidity from the outside air
from entering the house (Example 2).
EXAMPLE 1 (IN WINTER)
VF0042 VF0043
Fresh air
from outside. Stale air
from building
Stale air
to outside
18°C/64°F
22°C/72°F
EXAMPLE 2
(IN SUMMER WITH AIR CONDITIONING)
1.3.1 HEAT RECOVERY CORE
1.3.2 ENERGY RECOVERY CORE
When the outside temperature is below -5°C (23°F), recovery (of heat or energy) creates frost in the
module. To maintain its proper operation, the unit is programmed to defrost the recovery module.
The defrost frequency varies according to the outside temperature. Defrost lasts 7 minutes for HRV
Constructo 1.5ES, 6 minutes for HRV Constructo 2.0ES and 10 minutes for ERV Constructo 2.0ES
models (or 10 minutes for all models if set on “Extented Defrost”). During the defrost cycle, the unit
shifts to maximum speed and the dampers close.
After defrosting, the unit returns to the operating mode selected by the user.
1.4 DEFROST MODE
Fresh air
to building Stale air
to outside
Stale air
from building
Fresh air
to building
4°C/40°F
0°C/32°F
27°C/80°F
25°C/77°F
30°C/86°F
32°C/90°F
1. YOUR UNIT AND ITS PURPOSE (CONT’D)

6
2. CONTROLS
These units are equipped with an integrated control, located on the
electrical compartment. Use the push-button (1) to control the unit.
The LED (2) will then show on which mode the unit is in.
NOTES: 1. The integrated control must be turned OFF to use an
optional main control.
2. If an optional auxiliary control is used, if activated, this
auxiliary control will override the optional main control.
2.1 INTEGRATED CONTROL
VD0278 1
2
VD0281
Refer to table below to see how to operate the unit using its integrated control.
PRESS ON PUSH-BUTTON LED COLOR RESULTS
ONCE AMBER UNIT IS ON LOW SPEED
TWICE GREEN UNIT IS ON HIGH SPEED
THREE TIMES NOLIGHT UNIT IS OFF
2.1.1 BOOT SEQUENCE
The unit boot sequence is similar to a personnal computer boot sequence. Each time the unit
is plugged after being unplugged, or after a power failure, the unit will perform a 30-second
booting sequence before starting to operate. During the booting sequence, the integrated
control LED will light GREEN or AMBER for 5 seconds, and then will shut off for 2 seconds.
After that, the LED will light RED for the rest of the booting sequence. During this RED light
phase, the unit is checking and resetting the motorized damper position. Once the motorized
damper position completely set, the RED light turns off and the booting sequence is done.
NOTE: No command will be taken until the unit is fully booted.
MODEL HRV CONSTRUCTO 1.5ES HRV CONSTRUCTO 2.0ES ERV CONSTRUCTO 2.0ES
WIDTH 30¼" 30¼" 34"
HEIGHT 16½" 16½" 16½"
DEPTH 171∕8" 171∕8" 171∕8"
WEIGHT 65 LB (29.5 KG) 65 LB (29.5 KG) 76 LB (34.5 KG)
ELECTRICAL SUPPLY 120 V, 60 HZ120 V, 60 HZ120 V, 60 HZ
POWER CONSUMPTION 160 WATTS 195 WATTS 200 WATTS
1.5 SPECIFICATIONS
1. YOUR UNIT AND ITS PURPOSE (CONT’D)

7


OR
BACKLIGHT
If the backlight is not illuminated, the first button pressed (no matter which button)
shall turn on the backlight. The backlight remains illuminated for 10 seconds
after the last button pressed.
To change the operation mode of the ventilation unit, press the UP or DOWN arrow
button. Operating mode label will then scroll up or down on LCD screen.
OPERATING MODES
OFF
Put the unit on stand-by mode, so it will only respond to auxiliairy controls (if present).
On LCD screen, only the House is visible showing the control is powered on. This is
the factory default mode.
VC0117
MIN
Air is exchanged with the outside on low speed.
MAX
Air is exchanged with the outside on high speed.
20 MIN/H
The ventilation unit exchanges air intermittently on a one hour cycle as follows: OFF
for 40 min. and then exchange air during 20 min. on low speed. Repeat cycle after the
20 min. of air exchange.
2.2 OPTIONAL MAIN CONTROLS
2.2.1 DECO-TOUCH
2. CONTROLS (CONT’D)

8
HOW TO SET THE RELATIVE HUMIDITY (RH) LEVEL
Setting the relative humidity level allows to select the maximum desired indoor humidity level (in
percentage). This value will be used to start the dehumidistat override (air exchange in high speed).




OR
Press and hold OK for 3 sec. to access the settings menu. The
backlight will be activated during all the procedure.
The Relative humidity arrow and value will flash
(default setting: 45%).
Use UP or DOWN arrow to change the value. The
value changes by 1% increments. Lower value:
30%. Upper value: 55%. Still flashing.
Press OK button to accept new value and quit settting menu.
2.2 OPTIONAL MAIN CONTROLS (CONT’D)
2.2.1 DECO-TOUCH
DEHUMIDISTAT OVERRIDE SELECTION
In the operating modes MIN, MAX and 20 min/h, the user can select a dehumidistat override so that
if the relative humidity (RH) in the house exceeds the RH setting previously stored, the ventilation
unit will exchange in high speed until the target indoor RH setting is reached.
An air exchanger is not a dehumidifier, but it can change the indoor relative humidity by bringing in
drier or more humid air from outside during non heating season.The dehumidistat override function
is useful to reduce indoor RH when the outdoor air is cool and dry during the heating season. Select
a target RH between 30% and 55% according to your comfort. When outdoor relative humidity is
high (e.g. in summer), turn off the override by pressing OK until the RH display disappears.
When the dehumidistat override is activated, the AUTO indicator will appear on
LCD screen to show that the actual mode is being overridden. Also, the relative
humidity appears (if it was not shown, see example at left). Once the target humidity
level is reached, the unit goes back into its original operating mode and AUTO
disappears from LCD screen.
NOTE: If the actual mode is MAX, only the relative humidity level appears on screen; AUTO label
will not appear.
To engage the dehumidistat override, press OK.The actual indoor RH and the %HUM label appear
on LCD screen.
NOTE: If the actual RH is less than 20%, then the humidity indicator will display “LO”, and if the
actual RH is greater than 80%, then the humidity indicator will display “HI”.
To turn off the dehumidistat override, press OK again. The RH and %HUM display will disappear
from LCD screen.
MAINTENANCE INDICATOR
The maintenance indicator is represented by an M in a rounded
triangle, at the top of the house (see at right). If this indicator is
flashing, perform the regular maintenance (3 months), and if it is not
flashing, perform the annual maintenance (refer to Section 3).
2. CONTROLS (CONT’D)

9


AND
Resetting Maintenance Indicator: Press simultaneously on both arrow buttons,
Maintenance indicator will disappear from LCD screen.
POWER FAILURE
After a power failure, the wall control returns to its original operation mode.All settings are kept in memory.
2.2 OPTIONAL MAIN CONTROLS (CONT’D)
2.2.1 DECO-TOUCH
Adjusting AIR SUPPLY CONTROL
1) Select speed “MIN” or “MAX” using slide switch (A).
• When “MIN” (minimum speed) is selected, if the knob (B) is set above
the click, the unit will exchange in low speed with the outside and if it
is set below the click, the unit will exchange on high speed with the
outside until the desired humidity level has been reached.
• When “MAX” (maximum speed) is selected, the unit will exchange on
high speed with the outside either if the knob is set below or above the
click.
2) To turn off the unit, slide the switch at the “OFF” position.
2.2.3 CONSTRUCTO
- -5°C
23° F
5°C
41°F
C
O
M
F
O
R
T
Z
O
N
E
-20°C
-4°F
OFF MIN MAX
#
X
X
X
X
X
0
1
/
9
8
VC0086
CONSTRUCTO
BA
Activate the push-button.The color of the indicator shows the unit operating mode.
2.2.2 LITE-TOUCH CONSTRUCTO
COLOR MODE SUGGESTED USE
GREEN INTERMITTENT SELECT THIS MODE WHEN YOU ARE AWAY FROM THE
HOUSE FOR AFEW DAYS. ALSO, WHEN YOU DEEM
THE INSIDE AIR IS TOO DRY IN HEATING SEASON,
OR TOO HUMID IN COOLING SEASON. INTHIS MODE,
THE UNIT IS OFF FOR 40 MINUTES PER HOUR AND
VENTILATES AT MINIMUM SPEED THE REMAINING
20 MINUTES OF THE HOUR.
YELLOW MIN. SPEED VENTILATION FOR NORMAL DAILY OPERATION.
RED MAX. SPEED VENTILATION FOR EXCESS POLLUTANTS AND HUMIDITY (PARTIES,
ODORS, SMOKE, ETC.).
INTERMITTENT
MAX
MIN
VC0075
L-T
Adjusting DEHUMIDISTAT
Setting during summer months:
During this period, unless being afflicted with breathing problems, using the Dehumidistat is
unnecessary. Set the slide switch to “OFF”. (Do not exchange in day time; exchange at night time, if
cool outside, or if it is not raining.)
Setting during fall, winter and spring months:
(When severe condensation appears on windows.)
1) Determine the humidity level in your house (bring the knob (B) counterclockwise to its maximum
position, then bring it back clockwise slowly until you hear a “click”).
2) Set the knob to one line under this temperature level or “click”.
It is possible (and normal) to experience condensation on your windows when drastic
changes in temperature happen (for example: -5°C [23°F] to -20°C [-4°F]). In that case, we
suggest waiting a few days to allow the situation to stabilize.
CAUTION
Do not select a temperature below -20°C (-4°F). This could lead to excessive
dryness in the air causing discomfort for the occupants.
After a power failure, the Lite-Touch wall control settings will be erased.
2. CONTROLS (CONT’D)

10
Press once to activate the push-button. The unit will operate on high speed for
20 minutes and the indicator will light up. To stop activation before the end of the
20-minute cycle, push one more time.
The unit will get back to its previous setting.
2.3 OPTIONAL AUXILIARY CONTROLS
2.3.1 DEHUMIDISTAT
VC0009
VC0082
ON
In fall, winter and spring:
Adjust the knob to the desired maximum humidity level.
NOTE: Do not select a humidity level below 30%. This could lead
to excessive dryness in the air causing discomfort for the
occupants.
In summer:
Adjust the knob to the “SUMMER” position.
2.3.2 20-MINUTE LIGHTED PUSH-BUTTON
3. MAINTENANCE
Dangerous voltage may be present. During maintenance and repairs, the unit
must always be turned off, then unplugged.
We take great care to minimize sharp edges; however, please proceed with
caution when handling all components.
When cleaning the unit, it is recommended to wear safety glasses and gloves.
OFF
10
Turn
Past
VC0017
20
30
40
50
60
MINUTES
HOLD
This control makes the system operate at high speed for periods varying from
10 to 60 minutes.
2.3.3 60-MINUTE CRANK TIMER
3.1 EVERY THREE MONTHS
Regular maintenance should be performed every 3 months.Annual maintenance should take place
every fall season.
WARNING
!
2. CONTROLS (CONT’D)