5370597-JIM-D-1019
8
Johnson Controls Ducted Systems
Clearances
All units require particular clearances for proper operation and
service. Installer must make provisions for adequate
combustion 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 building
codes. Refer to Table 5 for clearances required for combustible
construction, servicing, and proper unit operation.
Rigging And Handling
Exercise care when moving the unit. Do not remove any
packaging until the unit is near the place of installation. Rig the
unit by attaching chain or cable slings to the lifting holes
provided in the base rails. Spreader bars, whose length
exceeds the largest dimension across the unit,
MUST
be used
across the top of the unit.
Units may be moved or lifted with a forklift. Slotted openings in
the base rails are provided for this purpose.
LENGTH OF FORKS MUST BE A MINIMUM OF 60 INCHES.
Figure 5: Unit 4 Point Load Weight
Figure 6: Center of Gravity
Excessive exposure of this furnace to contaminated
combustion air may result in equipment damage or
personal injury. Typical contaminates include:
permanent wave solution, chlorinated waxes and
cleaners, chlorine based swimming pool chemicals,
water softening chemicals, carbon tetrachloride,
Halogen type refrigerants, cleaning solvents (e.g.
perchloroethylene), printing inks, paint removers,
varnishes, hydrochloric acid, cements and glues, anti
static fabric softeners for clothes dryers, masonry acid
washing materials.
Do not permit overhanging structures or shrubs to
obstruct condenser air discharge outlet, combustion air
inlet or vent outlets.
If a unit is to be installed on a roof curb other than a JCI
roof curb, gasketing must be applied to all surfaces that
come in contact with the unit underside.
Before lifting, make sure the unit weight is distributed
equally on the rigging cables so it will lift evenly.
All panels must be secured in place when the unit is
lifted.
The condenser coils should be protected from rigging
cable damage with plywood or other suitable material.
D
A
C
B
LEFT
FRONT
X
Y
LEFT
FRONT
Table 2: Weights and Dimensions
Size
(Tons)
Model
Weight (lbs.)
Center of Gravity
4 Point Load Location (lbs.)
Shipping Operating
X
Y
A
B
C
D
JA3
(3)
ZT
927
922
42.4
24.7
202
184
255
281
JA4
(4)
ZT
965
960
42.5
25.5
217
198
260
285
JA5
5)
ZT
973
968
41.6
25.5
223
196
257
293