Attic; Installation; Nspect The Content Of The; Ocating The Nit - Venmar 41502 Installation Manual

1. TYPICAL INSTALLATIONS (
1.4 A I
TTIC NSTALLATION FOR
All 3 types of installations can be used in the attic (Fully ducted system, 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
an unconditioned space, the heat gains or losses from the unit and the ducts could increase the operation costs of the unit.
• 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 0°C (32°F) and under 65°C (149°F).
Stale air is exhausted 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 1 unit on
each system.
2.

INSTALLATION

2.1 I C
NSPECT THE ONTENTS OF THE
• Inspect the exterior of the unit for shipping damage. Ensure that there is no damage to the door, door latches, power cord, etc.
• Remove and discard both transport brackets (A) and open the door. Discard the styrofoam
fillers (ERV units only) and remove the hardware kit from the unit. Inspect the interior of the
unit for damage. Ensure that heat or energy recovery core, core filters, insulation, dampers,
etc. are all intact.
2.2 L U
OCATING THE NIT
Choose an appropriate location for the unit.
• Within an area of the house where the ambient temperature is kept between 18°C (65°F) and 40°C (104°F).
• So as to provide easy access to the interior of the unit, for semi-annual 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).
• For HRV units ONLY: Close to a drain. If no drain is close by, use a pail to collect run-off.
2.3 U P
NIT REPARATION
Both HRV and ERV units are equipped with 2 ports having integrated balancing damper. Turn the thumb screw
(B) clockwise to manually open and adjust the damper (C).
HRV : Set the Fresh air to building port to wide open position, and adjust the Exhaust air to outdoors port
UNITS
to 3rd notch.
NOTE: If the unit needs to be balanced, adjust the damper of the Exhaust air to outdoors port to wide open
position. See Section 6.
ERV : Set both Fresh air to building port and Exhaust air to outdoors port to wide open position.
UNITS
' )
CONT D
ERV U O
NITS NLY
B
OX
CAUTION
VH0058
5
A
VD0183
B
VJ0032
Port with integrated balancing
damper - Top view
C