127878-YIM-C-1208
Johnson Controls Unitary Products 13
CLEARANCES
All units require particular clearances for proper operation and
service. Installer must make provisions for adequate combus-
tion and ventilation air in accordance with section 5.3 of Air for
Combustion and Ventilation of the National Fuel Gas Code,
ANSI Z223.1 – Latest Edition (in U.S.A.), or Sections 7.2, 7.3,
or 7.4 of Gas Installation Codes, CSA-B149.1 (in Canada) -
Latest Edition, and/or applicable provisions of the local build-
ing codes. Refer to Table 6 for clearances required for com-
bustible construction, servicing, and proper unit operation.
FIGURE 9 - DR150 UNIT 6 POINT LOAD
TABLE 3: UNIT WEIGHTS
Model
Shipping Weight
*
(lb.)
*.
54 kW heater.
Operating Weight
*
(lb.)
DR090
1163 1148
DR120
1277 1262
DR150
1560 1545
w/Econ.
85 84
w/ PE
150 148
w/Elec. Heat
49 49
w/Gas Heat
†
†.
8 Tube Heat Exchanger.
110 110
TABLE 4: 4 POINT LOAD WEIGHT
Model
Location (lbs.)
*
*.
Weights include largest gas heat option.
ABCD
DR090
250 215 309 374
DR120
276 237 341 408
DR150
293 370 479 393
TABLE 5: 6 POINT LOAD WEIGHT
Model
Location (lbs.)
*
*.
Weights include largest gas heat option.
ABCDEF
DR090
171 154 139 201 225 258
DR120
188 170 154 220 248 282
DR150
191 217 253 329 286 260
FIGURE 10 - UNIT CENTER OF GRAVITY
(DR090, 120)
A
B
C
F
E
D
LEFT
FRONT
FR O N T
LE FT
47-1/2"
25-1/2"
(090) 38"
(090) 23"
FIGURE 11 - UNIT CENTER OF GRAVITY - DR150
Do not permit overhanging structures or shrubs to
obstruct condenser air discharge outlet, combustion
air inlet or vent outlets.
Excessive exposure to contaminated combustion air
will result in safety and performance related prob-
lems. To maintain combustion air quality, the recom-
mended source of combustion air is the outdoor air
supply. The outdoor air supplied for combustion
should be free from contaminants due to chemical
exposure that may be present from the following
sources.
• Commercial buildings
• Indoor pools
• Laundry rooms
• Hobby or craft rooms
• Chemical storage areas
The following substances should be avoided to
maintain outdoor combustion air quality.
• Permanent wave solutions
• Chlorinated waxes and cleaners
• Chlorine based swimming pool cleaners
• Water softening chemicals
• De-icing salts or chemicals
• Carbon tetrachloride
• Halogen type refrigerants
• Cleaning solvents (such as perchloroethylene)
• Printing inks, paint removers, varnishes, etc.
• Hydrochloric acid
• Cements and glues
• Anti-static fabric softeners for clothes dryers
• Masonry acid washing materials
60"
25-½"
LEFT
FRONT
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