Supply-Air Ductwork; Return-Air Ductwork; Ducted Panel - Trane GEHE 072-180 Installation, Operation And Maintenance Manual

Supply-Air Ductwork

Horizontal .5 to 5 ton and EXHF units require duct flanges
to be field installed.The duct flange ships in a box on the
side of the unit. Install the flange with (8) 3/8 in. factory
supplied screws.
Install the 1 in. supply-air duct flange to the vertical and
horizontal equipment with the (8) 5/16 in. factory-supplied
screws.The duct collar assembly for each unit is shipped
with the unit in the same box where the IOM manual is
located.
When attaching the field ductwork to the unit, provide a
watertight flexible connector at the unit to prevent
operating sounds from transmitting through the
ductwork. See Figure 47, p.
Elbows with turning vanes or splitters are recommended
to minimize air noise due to turbulence and to reduce static
pressure.
Figure 47. Flexible supply-air connector (field provided)
GEH supply duct
1-inch Duct Collar
(Factory Provided)

Return-Air Ductwork

Install the 1"-2" adjustable filter rack to the horizontal
equipment with the use of (4) 5/16 in. factory supplied
screws.The vertical equipment factory ships with the filter
rack and filter(s) installed.
When attaching the field ductwork to the unit, provide a
water-tight flexible connector at the unit to prevent
operating sounds from transmitting through the
ductwork.
Elbows with turning vanes or splitters are recommended
to minimize air noise due to turbulence and to reduce static
pressure.
WSHP-SVX01Q-EN
55.
Supply-Air
Boot (Field Supplied)
Figure 48. Flexible return-air connector (field provided)
GEV return duct
SUPPLY-AIR
Filter Flange
(Factory Provided)

Ducted Panel

The return-air arrangement may be easily converted from
a free return-air system, to a ducted return-air system with
the addition of a return-air side panel. By replacing the
filter racks with the return-air panel, a complete seal from
the duct to the unit is possible.The 1.5 duct flange
facilitates ease of field connection to the duct system.This
accessory is typically used when the return-air filter is
placed in a built-in ceiling grille, or placed within a field
provided filter rack assembly.
Figure 49. Return-air duct panel
Table 37. Opening size and part number GEH
Unit Size Unit Size
(60 Hz) (50 Hz)
006-015 006-012 17.5 in.
018-030 015-024 20.5 in.
035-042 030-036 22.5 in.
048-060 042-060 26.5 in.
Installation
RETURN
AIR
Return-Air Boot
(Field Provided)
Duct Collar
A B Part Number
13 in. 4474 1133 0100
16 in. 4474 5628 0100
17 in. 4474 1135 0100
19 in. 4474 1136 0100
55