Clearances; Rigging And Handling - York International ZQ Series Installation Manual

4. For ground level installation, use a level
concrete slab with a minimum thickness of 4
in. The length and width should be at least 6
in. greater than the unit base rails. Do not tie
slab to the building foundation.
5. Roof structures must be able to support the
weight of the unit and its options/accessories.
Unit must be installed on a solid, level roof
curb or appropriate angle iron frame.
6. Maintain level tolerance to 1/2 in. across the
entire width and length of unit.
WARNING
Excessive exposure of this furnace to contaminated
combustion air will result in safety and performance
related problems. Typical contaminates include:
permanent wave solution, chlorinated waxes and
cleaners, chlorine based swimming pool chemicals,
water softening chemicals, de-icing salts or 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.

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 4 for clearances required for
combustible construction, servicing, and proper unit
operation.
WARNING
Do not permit overhanging structures or shrubs to
obstruct condenser air discharge outlet, combustion
air inlet or vent outlets.
12 INSTALLATION MANUAL ZQ SERIES 3 - 5 ton 60 Hertz R-410A

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.
If a unit is to be installed on a roof curb other than a
Ducted Systems 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.
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.
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.
Johnson Controls Ducted Systems
CAUTION
CAUTION
CAUTION