Reznor YDSA Unit Installation Manual - Manual (Page 6)

Form I-Y, P/N 273646R6, Page 6
3.3 Storage If this system is going to be stored, take precautions to prevent condensate formation
inside the electrical compartments and motors. To prevent damage to the unit, do not
store sitting on the ground.
4.0 Clearances and Dimensions
4.1 Clearances
IMPORTANT: The area above the condenser fans MUST ALWAYS be
totally open space to allow proper airflow through the condenser
coils.
Airflow
Outside
Air
Hood
Controls
24”
610mm
72” (1829mm) -
Service Clearance to Remove a Coil
48” (1219mm) - Service Clearance to Remove
Compressors, Coils, Filter Driers, etc.
84” (2134mm)
- Service
Clearance to
Remove the Heat
Exchanger in a
Unit w/Gas Heat
36” (914 mm)
- Service
Clearance for
Cooling Only or
Unit w/Electric Heat
Top Clearance - 60” (1524mm)
Bottom Clearance - 0” (0mm)
FIGURE 1 - Minimum Clearances - All Sizes
Outside Air Hood
Option Description
Cabinet Size
1 2 3
AS16 Outside air hood with
permanent prefilters
273283 273373 284598
3.0 Receiving, Shipped Separate and Storage (cont’d)
3.2 Shipped Separate Accessories and Shipped Loose Parts (cont’d)
Exhaust Fan Control Option
Option Description
Cabinet Size
1 2 3
EFC4 Outside pressure pickup port
Room pressure port 234905
234906 234905
234906 234905
234906
Inlet Damper Control Option
Option Description
Cabinet Size
1 2 3
GF5 Outside pressure pickup port
Room pressure port
234905
234906 234905
234906 234905
234906
Fan Control Option
Option Description
Cabinet Size
1 2 3
VFC3 4”static pressure probe 234821 234821 234821
VFC4 Outside pressure pickup port
Room pressure port
-- 234905
234906
234905
234906