TABLE 31: MINIMUM CLEARANCES
LOCATION | CLEARANCE | |
Front | 36” | |
Rear | 24” (Less Economizer) | |
49” (With Economizer) | ||
| ||
|
| |
Left Side (Filter Access) | 24” (Less Economizer) | |
36” (With Economizer)3 | ||
Right Side (Cond. Coil) | 36” | |
Below Unit1 | 0” | |
Above Unit2 | 72” With 36” Maximum | |
Horizontal Overhang (For | ||
| Condenser Air Discharge) | |
|
|
1.Units may be installed on combustible floors made from wood or class A, B, or C roof covering material.
2.Units must be installed outdoors. Overhanging structures or shrubs should not obstruct condenser air discharge outlet.
3.If economizer is factory installed, the unassembled rain hood must be removed from its ride along position in front of evapora- tor coil, or in the outdoor air compartment, prior to final installa- tion.
NOTE: ELEC / ELEC Models: Units and ductwork are approved for zero clearance to combustible material when equipped with electric heaters.
GAS / ELEC Models: A 1” clearance must be provided between any combustible material and the supply air ductwork for a distance of 3 feet from the unit.
The products of combustion must not be allowed to accumulate within a confined space and recirculate.
Locate unit so that the vent air outlet hood is at least:
•Three (3) feet above any force air inlet located within 10 horizontal feet (excluding those integral to the unit).
•Four (4) feet below, four horizontal feet from, or one foot above any door or gravity air inlet into the building.
•Four (4) feet from electric and gas meters, regulators and relief equipment.
|
| ECONOMIZER | |
|
| MOTORIZED | |
SUPPLY AIR | POWER EXHAUST | DAMPER | |
RAIN HOOD | RAIN HOOD | ||
COMPARTMENT | |||
(on Return Air Compartment) | (on Outdoor Air Compartment) | ||
|
5”
ECONOMIZER / MOTORIZED DAMPER
AND POWER EXHAUST RAIN HOODS
FIXED OUTDOOR AIR INTAKE HOOD (located on Return Air Compartment)
| 1“ CONDENSATE |
DRAIN | |
| (Must be trapped) |
92” 
REAR VIEW | LH VIEW |
DETAIL “Y”
UNIT WITH RAIN HOODS
FIGURE 6 - UNIT DIMENSIONS DH180, 210, 240 & 300 (RAINHOOD)
36 | Johnson Controls Unitary Products |
