3.INSTALLATION (CONT’D)
3.6INSTALLING THE DUCTWORK AND REGISTERS (CONT’D)
3.6.3 SIMPLIFIED INSTALLATION (AS ILLUSTRATED IN SECTION 2.3)
!WARNING
When performing duct connections, always use approved tools and materials. Respect all corresponding laws and/or safety regulations. Please refer to your local building code.
CAUTION
When performing duct connections to the furnace supply duct, this duct must be sized to support the additional airflow produced by the HRV/ERV. Also, use a steel duct. For a
There are 2 methods for connecting the unit to the furnace/air handler: |
|
Method 1: | Method 2: |
A+B= NOT LESS
MINIMUM 18”THAN 10’ (3.1 M) A
(0.5 M)
STEEL DUCT |
| MINIMUM 3’ |
| A | (0.9 M) |
|
|
B
B
A+B= NOT LESS
THAN 10’ (3.1 M)
VJ0037
VJ0038
Stale air intake
•Cut an opening into the furnace/air handler return duct not less than 10 feet (3.1 m) from the furnace/air handler (A+B).
•Connect this opening to the Exhaust air from building port of the HRV/ERV.
Fresh air distribution
•Same instructions as for Method 1 or Method 2, Section 2.6.2.
For Method 2
NOTE: For Method 1, it is not essential to synchronize the furnace blower operation with the unit operation, but we recommend it.
CAUTION
If using Method 2, make sure the furnace/air handler blower operation is synchronized with the unit operation! See Section 5.
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