6
2. TYPICAL INSTALLATIONS (
CONT
’
D
)
2.4 A
TTIC
I
NSTALLATION
FOR
AVS E15 ECM ERV O
NLY
All three types of installation can be used in the attic (Fully ducted, Central Draw Point or Simplified). The example shown below is a
Simplified Installation (connection to a forced air system).
NOTE: To get the most of your ERV unit, the ambient temperature around the unit should be conditioned. If the unit has to be installed
in a unconditioned space, the heat gains or losses from the unit and the ducts could increase the operation costs of the unit.
CAUTION
• Due to the potential temperature difference between the attic and the rest of the house, all unit ducts must be insulated.
• The attic temperature must always be above 10°C (50°F) and under 50°C (122°F).
Stale air is exhausted to the outdoors. Fresh air from outdoors is filtered and supplied
to the return (plenum) of the forced air unit. See figure at right.
To avoid cross-contamination and achieve the highest efficiencies, the forced air
system blower must always be ON.
NOTE: Home with multiple forced air systems should have one unit on each system.
VH0076
3. INSTALLATION
3.1 I
NSPECT
THE
C
ONTENT
OF
THE
B
OX
Inspect the exterior of the unit for shipping damage. Ensure that there is no damage to the door, ports, power cord, etc.
3.2 U
NIT
D
OOR
(
S
)
The AVS E15 ECM ERV, AVS E15 ECM HRV, 90H-V ECM ERV and the
90H-V ECM HRV units have one front door and one back door while the
AVS E15 HRV, AVS E10 HRV, 90H-V+ and the 60H-V+ units only have one
door. For these last models, the unit door can be relocated on the back of the
unit. This can be helpful to optimize duct configuration while keeping access
for unit maintenance. To change door location, follow these steps:
A.
Remove both door lower mechanical screws no. 8-32 x 1” (
1
) and set
aside.
B.
Open
(
2
) and lift out the door (
3
).
To remove unit back panel, repeat steps
A
and
B
, but instead of removing
2 mechanical screws, there are 4 mechanical screws to be removed. Hang
the door to the back of the unit and secure it by tightening its both lower
mechanical screws. Hang back panel to the front of the unit and secure it by
tightening its four metal screws.
VO0149
A
B
3
2
1
3.3 L
OCATING
THE
U
NIT
Choose an appropriate location for the unit.
• Within an area of the house
where the ambient temperature is kept
between 10°C (50°F) and 40°C (104°F)
.
• Away from living areas (dining room, living room, bedroom), if possible.
• So as to provide easy access to the interior of the unit, for quarterly and
annual maintenance.
• Close to an exterior wall, so as to limit the length of the insulated flexible
duct to and from the unit.
• Away from hot chimneys and other fire hazards.
• Allow for a power source (standard 3-prong grounding outlet).
• Close to a drain. If no drain is close by, use a pail to collect run-off.
Hang the unit with the four chains and springs provided.
See illustration at right.
VD0205
CAUTION
Make sure the unit is level.
