Specifications - Lord and Son Construction, Inc.

2.9.2 Chilled and Condenser Water
Water to be used in the chilled and condenser water systems shall be treated
to maintain the conditions recommended by this specification as well as the
recommendations from the manufacturers of the condenser and evaporator
coils. Chemicals shall meet all required federal, state, and local
environmental regulations for the treatment of evaporator coils and direct
discharge to the sanitary sewer.
2.9.3 Water Treatment Services
The services of a company regularly engaged in the treatment of condenser
and chilled water systems shall be used to determine the correct chemicals
required, the concentrations required, and the water treatment equipment
sizes and flow rates required. The company shall maintain the chemical
treatment and provide all chemicals required for the condenser and chilled
water systems for a period of 1 year from the date of occupancy. The
chemical treatment and services provided over the 1 year period shall meet
the requirements of this specification as well as the recommendations from
the manufacturers of the condenser and evaporator coils. Acid treatment and
proprietary chemicals shall not be used.
2.9.4 Chilled Water System
A shot feeder shall be provided on the chilled water piping as indicated.
Size and capacity of feeder shall be based on local requirements and water
analysis. The feeder shall be furnished with an air vent, gauge glass,
funnel, valves, fittings, and piping.
2.10 ELECTRICAL WORK
Provide motors, controllers, integral disconnects, contactors, and controls
with their respective pieces of equipment, except controllers indicated as
part of motor control centers. Provide electrical equipment, including
motors and wiring, as specified in Section 26 20 00 INTERIOR DISTRIBUTION
SYSTEM. Manual or automatic control and protective or signal devices
required for the operation specified and control wiring required for
controls and devices specified, but not shown, shall be provided. For
packaged equipment, the manufacturer shall provide controllers including the
required monitors and timed restart.
Provide high efficiency type, single-phase, fractional-horsepower
alternating-current motors, including motors that are part of a system, in
accordance with NEMA MG 11.
Provide polyphase, squirrel-cage medium induction motors, including motors
that are part of a system, that meet the efficiency ratings for premium
efficiency motors in accordance with NEMA MG 1. Provide motors in
accordance with NEMA MG 1 and of sufficient size to drive the load at the
specified capacity without exceeding the nameplate rating of the motor.
Motors shall be rated for continuous duty with the enclosure specified.
Motor duty requirements shall allow for maximum frequency start-stop
operation and minimum encountered interval between start and stop. Motor
torque shall be capable of accelerating the connected load within 20 seconds
with 80 percent of the rated voltage maintained at motor terminals during
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