Bryant 559F operation manual III. Ð Field Fabricate Ductwork, IV. Ð Make Unit Duct Connections

III. STEP 3 Ð FIELD FABRICATE DUCTWORK

Secure all ducts to building structure. Use ¯exible duct con- nectors between unit and ducts as required. Insulate and weath- erproof all external ductwork, joints, and roof openings with counter ¯ashing and mastic in accordance with applicable codes.

Ducts passing through an unconditioned space must be in- sulated and covered with a vapor barrier.

The 559F units with electric heat require a 1-in. clearance for the ®rst 24 in. of ductwork.

Outlet grilles must not lie directly below unit discharge.

NOTE: A 90-degree elbow must be provided in the ductwork to comply with UL (Underwriters' Laboratories) codes for use with electric heat.

WARNING: For vertical supply and return units, tools or parts could drop into ductwork and cause an injury. Install a 90 degree turn in the return ductwork be- tween the unit and the conditioned space. If a 90 de- gree elbow cannot be installed, then a grille of sufficient strength and density should be installed to prevent ob- jects from falling into the conditioned space. Due to elec- tric heater, supply duct will require 90 degree elbow.

NOTE: Do not drill in this area, as damage to basepan may result in water leak.

Fig. 6 Ð Air Distribution Ð Thru-the-Bottom

(559F216-300 Shown)

NOTE: Do not drill in this area, as damage to basepan may result in water leak.

Fig. 7 Ð Concentric Duct Air Distribution

(559F216-300 Shown)

IV. STEP 4 Ð MAKE UNIT DUCT CONNECTIONS

Unit is shipped for thru-the-bottom duct connections. Duct- work openings are shown in Fig. 6. Field-fabricated concen- tric ductwork may be connected as shown in Fig. 7 and 8. Attach all ductwork to roof curb and roof curb basepans. Re- fer to installation instructions shipped with accessory roof curb for more information.

V. STEP 5 Ð TRAP CONDENSATE DRAIN

See Fig. 4, 5, and 9 for drain location. Plug is provided in drain hole and must be removed when unit is operating. One 3¤4-in. half coupling is provided inside unit evaporator section for condensate drain connection. An 81¤2 in. x 3¤4-in. diameter nipple and a 2-in. x 3¤4-in. diameter pipe nipple are coupled to standard 3¤4-in. diameter elbows to provide a straight path down through holes in unit base rails (see Fig. 10). A trap at least 4-in. deep must be used.

Shaded area indicates block-off panels.

NOTE: Dimension A, A and B, B are obtained from ®eld-supplied ceil- ing diffuser.

Fig. 8 Ð Concentric Duct Details

3/4" FPT DRAIN	1-3/8"
CONNECTION	DRAIN HOLES

Fig. 9 Ð Condensate Drain Details

(559F180,216 Shown)

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