AAF-HermanNelson
®
Installation Instructions For
Floor Mounted Model ARQ, ERQ
©1999 AAF-HermanNelson
IM UV-3-202D (Rev. 6/99)
HermanNelson
®
Installation and Maintenance Data
IM UV-3-202D
Group: Unit Ventilator
Part Number: 106100901
Date: June 1999
IMPORTANT: Operating the water source
heat pump system before cleaning the
pipe loop can cause series damage to the
equipment. Confirm that the system has
been cleaned in accordance with the
procedure on page 3 before completing
the installation of this equipment.
NOTE: These are general instructions.
Refer to the AAF-HermanNelson Environ-
mental submittal drawings for specific
dimensions, unit arrangement, stub-up
locations, etc.
Uncrating and Inspection
Upon receipt of the equipment, check
carton for visible damage. Make a nota-
tion on the shipper's delivery ticket
before signing. If there is any evidence of
rough handling, the cartons should be
opened at once to check for concealed
damage. If any is found, notify the carrier within 48 hours to
establish a claim and request their inspection and a report.
The Warranty Claim Department should be contacted.
Inspect the carton for any specific tagging numbers
indicated by the factory per a request from the installing
contractor.
Check the number against the plans to be sure that the unit
will be installed in the correct location.
Note:
Installation and maintenance must be performed by
qualified personnel who are familiar with local codes
and regulations, and are experienced with this type
of equipment.
Caution:
Sharp edges are a potential injury hazard. Avoid
contact with them.
Uncrating
1. Check tagging on unit carton to confirm that unit is
correct for the location.
2. Position the carton so the end marked "TRUCK FROM
THIS END" is on the right-hand side as you face the unit.
3. Carefully remove the carton from the unit. The carton may
be retained to provide protection for the unit after
installation. Do not remove the protective plastic
covering until the unit is to be started. When removing
the protective plastic covering, be certain that it is
removed from the interior of the front panel.
4. Check for shipping damage.
Figure 1.
WALL SURFACE
1. The wall behind the unit should be smooth and plumb.
2. The seals on the rear of the unit will take up the small irregu-
larities of normal masonry construction.
3. Furring strips must be installed on irregular walls or walls
with mullions in order to provide a flush surface for the unit to
seal against.
4. Any moldings at the floor/wall line should be omitted
behind the unit.
5. A sealing surface must be provided at the floor line
(see Figure 2).
The above steps are important to prevent leakage of outdoor air
which wastes energy, causes erratic control, AND MAY CAUSE
FREEZE-UP OF WATER SYSTEM.
LEFT END VIEW
DRAIN CONNECTION
FIELD REVERSIBLE
KNOCK-OUT
FOR MAIN
ELECTRICAL
CONECTION
TOP VIEW
HINGED ACCESS
DOOR
FRONT VIEW
WATER RETURN
WATER SUPPLY
FAN MOTOR
Figure 2.
INTAKE
LOUVER
SEALING SURFACE
SEALING
SURFACE
PITCH AWAY
FROM UNIT
1"
