Step 3 - Locate Unit; Step 4 - Mount Unit; Step 5 - Install Duct System; Sound Attenuation - Carrier AQUAZONE 50HQP072-120 Installation And Service Instructions Manual

LEGEND
BSP — Blower Service Panel
CAP — Control Access Panel
CBP — Control Box Panel
EAP — Expansion Valve Access Panel
a50-8534
Step 3 — Locate Unit —
should be considered when choosing a location for a WSHP:
• Units are for indoor use only.
• Locate in areas where ambient temperatures are between
4.4 C and 37.8 C and relative humidity is no greater than
75%.
• Provide sufficient space for water, electrical and duct
connections.
• Locate unit in an area that allows for easy access and
removal of filter and access panels.
• Allow enough space for service personnel to perform
maintenance.
• Provisions must be made for return air to freely enter the
space if unit needs to be installed in a confined area such
as a closet.
NOTE: Correct placement of the horizontal unit can play an
important part in minimizing sound problems. Since duct-
work is normally applied to these units, the unit can be placed
so that the principal sound emission is outside the occupied
space in sound-critical applications. A fire damper may be re-
quired by the local code if a fire wall is penetrated.
Step 4 — Mount Unit —
ing the factory-installed hangers. See Fig. 3. Proper attachment
Fig. 2 — Typical Horizontal Installation
The following guidelines
Units should be mounted us-
NOTES:
1. Access is required for all removable panels and installer should
take care to comply with all building codes and allow adequate
clearance.
2. Water inlet and outlet connections are available on either side of
the unit. Plugs are shipped loose in a plastic bag tied to the water
leg in front of the unit. Installer must plug unused connection.
3. Condensate drain connection is on end opposite of compressor.
4. Electrical access is available on either side of the front of the unit.
5. Electrical box is on right side but can be field-converted to left.
of hanging rods to building structure is critical for safety. See
Fig. 2. Rod attachments must be able to support the weight of
the unit. See Table 1 for unit operating weights.
Step 5 — Install Duct System —
should be sized to handle the design airflow quietly.
NOTE: Depending on the unit, the fan wheel may have a ship-
ping support installed at the factory. This must be removed
before operating unit.
SOUND ATTENUATION — To eliminate the transfer of
vibration to the duct system, a flexible connector is recom-
mended for both discharge and return air duct connections on
metal duct systems. The supply and return plenums should in-
clude internal duct liner of fiberglass or be made of duct board
construction to maximize sound attenuation of the blower.
Installing the WSHP unit to uninsulated ductwork in an uncon-
ditioned space is not recommended since it will sweat and
adversely affect the unit's performance.
To reduce air noise, at least one 90-degree elbow could be
included in the supply and return air ducts, provided system
performance is not adversely impacted. The blower speed can
be also changed in the field to reduce air noise or excessive air-
flow, provided system performance is not adversely impacted.
5
The duct system