and rinse water with steam injectors or coils. Chamber shall be equipped
with removable screen, overflow and water level control.
2.11.2
Doors
Doors shall be automatic, power operated, sliding type, located on each end
of each unit. Doors shall have manufacturer's standard exterior finish and
shall be constructed of material consistent with the chamber. Door gaskets
shall be renewable, heat resistant resilient sealing type with material
consistent with the chamber. Load and unload doors shall not open when
water pressure is in excess of 13.8 kPa 2 psig or vacuum in chamber, and
never during a washing-sterilizing cycle.
2.11.3
Washing System
Water spray arms, nozzles and related piping shall be stainless steel,
bronze or brass. Motor driven centrifugal pump, of appropriate size and
rating, shall be provided to force wash and rinse water through nozzles.
Arms and nozzles shall be arranged to fully spray entire load at high
pressure. Include provisions to heat wash and rinse water from ambient to
between 60 and 71 degrees C 140 and 160 degrees F and thermostatically
maintain temperature within this range.
2.11.4
Sterilizing System
Unit shall be provided with necessary valves, traps, and regulators for
operation on building steam supply. A steam strainer shall also be
provided for assembly. Sterilize phase shall not progress if chamber
temperature should fail to reach or fall 1 degree C 2 degrees F below set
value. Following sterilizing period, steam and condensate shall
automatically be discharged to waste.
2.11.5
Safety Valve
Safety valve shall be provided that is ASME approved, preset for chamber
maximum working pressure and sealed to prevent changing setting.
2.11.6
Insulation
Exterior surfaces of chamber (except doors) shall be covered with nominal
25 mm 1 inch thick aluminum foil-backed glass fiber insulation, secured
with thermosetting tape or corrosion and heat resistant straps and clips.
Recyclable materials shall conform to EPA requirements in accordance with
Section 01670 RECYCLED / RECOVERED MATERIALS.
2.11.7
Detergent Dispensing
Detergent dispensing system shall automatically dispense proper amount of
detergent, at appropriate times, to sterilizer chamber. Dispenser shall be
built-in type and may include integral storage or be the type that draws
directly from supplier's containers. Built-in storage shall hold at least
12 cycles of detergent. Include at least [one] [_____] full 12-cycle
[supply] [supplies] of detergent for the unit.
2.11.8
Controls
Furnish either single console designed to control all functions of system,
or decentralized panel providing individual controls for each automated
washer-sterilizer with system. Regardless of control style, it shall be
SECTION 11710
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