4. Single XL19i condensing unit / heat pump in a fenced corner with unrestricted top clearance
A) For locations where the design ambient temperature is below 105F:
1) 1.5 feet clearance from both walls.
2) 2.0 feet fence clearance - openings shall be provided to allow free air passage to unit. ( Free air
passage shall be sized @ 300 FPM Velocity)
3) Service access shall be 3.0 feet minimum
B) For locations where the design ambient temperature exceeds 105F:
1) 2.0 feet clearance from both walls.
3) 3.0 feet clearance from fence. openings shall be provided to allow free air passage to unit. ( Free
air passage shall be sized @ 300 FPM Velocity)
2) Service access shall be 3.0 feet minimum.
C) If unit is located in such a way that service panel is facing the wall
1) NEC requires minimum 3 feet between the unit and the wall
a) This space may be increased to 3 1/2 feet. Consult the National Electric Code for more
information regarding minimum clearances for working spaces.
Service Panel
Service Panel
-1.5’-
min
-1.5’-
min
-1.5’-
min
-1.5’-
min
2
2
2
2
2
-2.0’-
min
-3.0’-
min
-2.0’-
min
-3.0’-
min
23
23
23
23
23
23
23
23
23
23
23
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SIngle Unit - Solid Fence
Solid Fence: Fence height not to exceed top of unit. Provide openings in fence that will allow maximum 300 FPM air velocity.
These openings shall be located at the lower portion of the fence. If acceptable, the lower portion of the fence may be cut to
provide open bottom clearance provided that debris, grass and vegetation will not obstruct air passageway.
* If removable panels are used and acceptable to local inspection agency, the clearance to the removable
panel may be reduced to 2.0 feet
23456
opening size @
300 FPM maximum
velocity
Pg 12
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