Imperial SHMTM User Manual
STATIC AND STATIC WITH MOTORIZED DAMPERS MODELS
INSTALLATION
GUIDE
Horizontal
series
• MODEL SH
TM
• MODEL SHM
TM
• MODEL SHM
TM
• MODEL SH
TM
About Us
Imperial Air Technologies Inc. is the only manufacturer that offers you a complete range of products
designed to improve indoor air quality, and that provides a wide selection of accessories to facilitate
installation.
Our vision – To offer a complete range of GreentekTMproducts that satisfy environmental concerns.
Whether your needs involve ventilation, purification, humidification or filtration, Greentek
TM
has the
customized solution for you, with its range of quality products backed by the best warranty in the
industry.
Installation
1. Ventilation Needs
2. Typical Installation
3. GreentekTMHRV Systems
4. Finding a Suitable Installation Area for the HRV
5. Installation of the HRV
6. Rigid Duct
7. Insulated Flex
8. Motorized Damper Assembly (Model SHM only)
9. Condensation Drain Line
10. Outside Hoods
11. Balancing Damper
Functions and Controls
12. Control (Model SHM only)
13. Troubleshooting
Technical Information
14. Maintenance
15. Accessories
16. Wiring Diagram (Model SHM only)
17. Specification and Technical Information
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Greentek
TM
Peace of Mind
Limited
WARRANTY
All GreentekTMproducts are backed by
the best limited warranty in the industry,
for your peace of mind.
You benefit from a lifetime warranty on
the core, and a 5 year warranty on all
other components. So you can breathe
easy.
Safety
Considerations
for HRV
1. Read entire manual before
attempting to install the unit.
2. Always determine how the operation
of the unit will interact with
Combustion Appliances (i.e. Gas
furnace, Wood stoves, Oil furnace…)
3. Never install a unit in situations where
normal operation, lack of operation or
partial failure may result in
backdrafting or improper functioning
of Combustion Appliances.
4. Keep the units’ Fresh air intake a safe
distance from any potential source of
contamination, which may cause
health problems.
Redefining Indoor Air Quality
Solutions worthy
of nature...
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INFORMATION FOR INSTALLERS PAGE
INFORMATION FOR HOME OWNERS AND INSTALLERS PAGE
INFORMATION FOR HOME OWNERS AND INSTALLERS PAGE
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STATIC AND STATIC WITH MOTORIZED DAMPERS MODELS
Determine Your
Ventilation Needs
installation
How much fresh air do I need? Good air
quality is based in part on the capacity of
the home’s ventilation system.
Usually, the HRV’s capacity is measured in
CFM (Cubic Feet per Minutes) or L/s
(Liters per Seconds) of fresh air being
distributed in the living space. The Room
Count Calculation or the Air Change per
Hour Method shows you how to
determine your ventilation needs.
Air Volume
Needed
installation
In a typical installation there must be an
adequate air volume passing through the
unit in proportion of the pressure from
the heating system.
Exemple: On the warm side*, the air volume needed is based on a 26’ rigid duct.
On the cold side*, the proportional eqivalent is 18’ of rigid duct.
* Between the model SH and the
forced air system.
**Between the model SH and the
outside intake.
A. Room Count Calculation
B. Air Change per Hour Method
2. Typical Installation
1.Ventilation Needs
LIVING SPACE
Master Bedroom
With Basement
Without Basement
Single Bedroom
Living Room
Dinning Room
Family Room
Recreation Room
Other
Kitchen
Bathroom
Laundry Room
Utility Room
TOTAL cu ft X 0.3 per hr = total
Take total and divide by 60 to get CFM
Number of Rooms CFM (L/s) CFM Required
x 20 cfm (10 L/s) =
x 20 cfm (10 L/s) =
x 10 cfm (5 L/s) =
x 10 cfm (5 L/s) =
x 10 cfm (5 L/s) =
x 10 cfm (5 L/s) =
x 10 cfm (5 L/s) =
x 10 cfm (5 L/s) =
x 10 cfm (5 L/s) =
x 10 cfm (5 L/s) =
x 10 cfm (5 L/s) =
x 10 cfm (5 L/s) =
TOTAL ventilation requirement (add last column) =
25’ x 40’ house with basement
1,000 sq. ft. x 8’ high x 2
(1stfloor = basement)= 16,000 cu. ft.
16,000 sq. ft. x 0.3 ACH
= 4,800 cu. ft.
4,800 sq. ft. / 60 Minutes
= 80 CFM
1 CFM = 0.47189 L/s
1 L/s = 3.6 m3/hr
80 CFM
is your ventilation needs
Example:
VENTILATION PERFORMANCE - MODEL SH
0.25
0.20
0.15
0.10
0.05
0.00
Supply
Return
60 70 80 90 100
Ft3/min. of HRV (Exhaust)
Supply
SUPPLY (“W.C.)
0.25
0.20
0.15
0.10
0.05
0.00
60 70 80 90 100
Ft3/min. of HRV (Fresh Air Intake)
Return
RETURN (“W.C.)
Exhaust from the
supply and supply
in return
installation
Make sure that the Supply air from HRV is
at least 3 feet from the forced air system.
Can be different from a region to an
other. You should check with your local
code or the forced air system’s
manufacturer.
Airflow Direction
installation
Check the airflow direction before starting
the unit. If the airflow is not as indicated,
flip the core to the appropriate side.
Note: To install the core unit accordigly to
with the airflow, locate the four arrows on
the core decal and read the directions.
(Side A or side B)
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3. Typical Installation (continued)
Forced Air System
6’
18”
Heat
Recovery
Exhaust from supply and supply in return
FOR MINIMUM DISTANCE BETWEEN
RETURN AND FORCED AIR SYSTEM
Check with your local building codes and forced air system
manufacturer
3’
Figure 3.2 Core unit side A
Figure 3.3 Core unit side B
Read the arrows for
airflow direction
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STATIC AND STATIC WITH MOTORIZED DAMPERS MODELS
Installation Kit
Included in the installation kit:
• 4 Collars
• 1 Condensation Drain Line
• 1 Drain Adapter with Nut
• 2 Tie Wraps (30”)
• 16 screws (#10 x 5/8”)
• 4 screws (#10 x 1”)
Figure 3.1 Pull out the inserts first then use the straps to lift the unit out of the box
3. GreentekTMHRV Systems
4. Finding a suitable installation area for HRV.
Figure 3.2 Installation kit is shipped inside the unit
Figure 3.3 Installation kit
The HRV unit should be installed in a mechanical room or as close to an outside wall as possible.
This would assure a short run of insulated flexible duct.
The HRV unit must always be installed in an area where the air is tempered to avoid freezing of
the condensate line. The contractor should install the unit in area that is very accessible to allow
the homeowner easy access for maintenance.
You should have access to a condensate drain near the HRV to avoid the use of condensate pump.
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