0 mechanical, 1 install hood(s), 0 mounting (cont'd) – Reznor YDSA Unit Installation Manual User Manual
Page 20: 4 rigging and lifting (cont’d)
Form I-Y, P/N 273646R6, Page 20
DANGER
To prevent death, injury, or equipment damage caused by inadequate or improper rigging,
test lift the unit before attempting to install it on the roof. To prevent injury, death, or
equipment damage when lifting, use ALL lifting points.
FIGURE 14 - Rigging and Lifting a Cabinet
using four lifting points and spreader bars
Optional
Wheel Access Damper Access
Coil &
Filter
Access
Supply
Fan
Access
Optional
Heat Section
Control Access
Condenser
Section
Spreader bars
are REQUIRED.
After test lift, adjust cable length as needed so that
the unit will remain horizontal throughout the lift.
(4) Corner Lifting Points - 1-1/2” (38mm) diameter
Lift straight up with vertical force only.
Test lift the unit to be sure that it is secure and the weight is balanced. Lift the unit
slowly, following safe lifting procedures.
6.0 Mechanical
6.1 Install Hood(s)
To avoid possible damage, it is recommended that the hood(s) be installed after the
system has been placed on the roof. Install the hood(s) before the blower is operated.
Do not install the hood(s) while the system is in operation. All screw ends should be to
the inside of the hood or cabinet.
NOTE: Select screws
carefully. Use sheet
metal screws (slotted
head with straight
tip) when holes
in the cabinet are
provided. Use self-
drilling screws (head
is not slotted with
drill-type tip) when
cabinet holes are not
provided.
6.1.1 Inlet Air Hood,
Option AS16
Application and
Components by Model
and Size
Model YDSA
N/A
120,150
180,210
Models YDHA, YDMA 060, 090, 120,
150
180, 210, 240
300, 360
Pkg P/N
273283
273373
284598
Air Hood Components:
Top
272476
271116
284449
Right Side
272477
271117
284450
Left Side
272478
271118
284451
Front Cover
272479
271119
284454
Filter Support Assy
272482
268702
284452
Sheet metal
Screws
(16) 11813, 1/2”
Self-Drilling SM
Screws
(8) 37661, 1/2”
Filters
(4) 101607,
16x20x1
(4) 101610,
20x25x1
(8) 101609,
16x25x1
5.0 Mounting (cont'd)
5.4 Rigging and Lifting (cont’d)