Price AW-I Series, Руководство по установке

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Duct Connections
On outdoor units with ducting passing down through the
curb, the ducting will be installed prior to unit placement and
attached to the curb. For all other duct connections, the
ductwork will be connected to the unit casing using sheet
metal screws by the installing contractor. Unless indicated on
the submittal drawings, the weight of the ducting should not
be placed directly on the unit. The installing contractor should
provide an external means to carry the duct weight.
Access panels in the ducting near the unit are recommended.
Where no access to the unit inlet or discharge section is
provided as part of the unit (for example an access door in the
unit), access panels are strongly recommended for inspection
and service.
Duct Furnace Installation
Where AW-I furnaces are supplied as duct furnaces, the
following installation requirements apply:
1. Duct furnaces shall be installed on the positive pressure
side of the fan.
2. Duct furnaces shall be installed with an inlet duct which will
provide air distribution equivalent to a straight run of duct
having the same cross-sectional area as the inlet connection
and no less than two equivalent diameters in length.
3. Provide removable access panels on both upstream and
downstream sides of the duct furnace. These openings
shall be accessible when the appliance is in service, and
shall be of such a size that smoke or light may observed
inside the casing to indicate the presence of leaks in the
heating element. The access panels shall be attached in
such a manner as to prevent leaks.
4. High static packaged heaters must be adjusted to obtain
temperature rise, manifold pressure and air flow within
the range specified on the unit rating plate. Duct furnaces
must be adjusted to obtain an air flow rate within the
range specified on the appliance rating plate.
5. For altitudes of 2000 – 4500 feet (600 and 1350 m),
derate the maximum rated input by 10%.
6. The appliance shall not be installed downstream from
evaporative coolers, air washers or cooling units of
refrigerating systems unless the following optional
conditions are met.
a) if the heating element is made of corrosion resistant
material as per ANSI 83.8/CSA 2.6 clause 4.29.1 , it
can be installed downstream for evaporative coolers or
air washers.
DUCT FURNACE INSTALLATION
ACCESS
PANEL
DUCT FURNACE
ACCESS
PANEL
2 diameters 2 diameters
HANG UNIT WITH ROD
CONNECTED TO BASE
FIGURE 7: TYPICAL FAN BASE SHIPPING BRACKET
b) if the appliance complies with all of the optional provisions
outlined in ANSI 83.8/CSA 2.6 clause 4.29 and 5.30
the appliance may also be installed downstream from
refrigerated units supplying air below the dew point of the
ambient air surrounding the appliance.
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AW-I
INSTALLATION INSTRUCTIONS
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