MACHINE ROOM REQUIREMENTS
The equipment room floor must solidly support the
compressor unit as a live load. Ground level instal-
lation seldom presents problems, but a mezzanine
installation must be carefully engineered.
Ventilation should be 100 cfm per compressor
unit horsepower. The air inlet should be sized for
a maximum of 600 fpm velocity. The ventilation
fans should cycle by thermostatic control.
All machine room ventilation equipment must be
field supplied. Check local codes for variances.
Proper ventilation provides airflow across the
compressors. Duct work may be necessary.
Provide a floor drain for disposal of condensate
that may form on the compressor unit or defrost
header assembly.
Equipment must be located in the machine room
to provide enough working space for service
personnel, and to meet electrical codes.
Consult NEC National Fire Handbook, particu-
larly “Installation of Switch Boards” and
“Working Space Requirements”. The figure below
demonstrates some suggested distances. Refer to
local codes for each installation.
SCROLL PLUS LOAD POINTS
Rack Assembly
Load Point Dimensions
Nomenclature
Length
Width
(in.)
(in.)
All
62.7
30
UNIT PLACEMENT
When setting the Scroll Plus System plan in rela-
tion to the rest of the equipment to be installed,
some minimum and maximum distances are list-
ed.
Note:
Piping equivalent is not the same as
linear distance.
September 1, 1997
P/N 401789
1 - 3
HUSSM ANN CORPORATION • BRIDGETON, M O 63044-2483 • Printed in USA
4 ft Min
3
1
/
2
ft Min
3 ft Min
Grounded Metal Rail
ScrollPlus™ Rack
Scroll Plus™ Rack
2 ft Min
2 ft Min
3 ft Min
Remote
Satellite
Concrete Block Wall
Remote
Satellite
Figure 1-2 — Electrical Clearance Requirements
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