substitution request - Alliance Construction Solutions

E. Solenoid enclosures shall meet the ICS-6 ANSI/NEMA standard and UL standards 429,
508 and/or 1002 as follows:
1. Type 1: General Purpose.
2. Type 2: Drip proof.
3. Type 3 and 3S: Raintight, dust tight and sleet (ice) resistant.
4. Type 3R: Rainproof, sleet (ice) resistant.
5. Type 4: Watertight and dust tight.
6. Type 4X: Watertight, dust tight and corrosion resistant.
7. Type 6: Submersible.
8. Type 6P: Submersible, prolonged submersion at a limited depth.
9. Type 7: Explosion proof, Class I, Division 1, Group A (acetylene); B (hydrogen); C
(ethyl-ether vapors, ethylene or cyclopropane); D (gasoline, hexane, naphtha,
benzene, butane, propane, alcohol, acetone, benzol, lacquer, solvent vapors or
natural gas).
10. Type 9: Dust-ignition proof, Class II, Group E (metal dust); F (carbon black coal
or coke dust); G (flour starch or grain dust).
11. Operating temperatures shall range from 185°F to 842°F for T1 through T6 code
numbers.
F. Parts in contact with fluid shall be brass, bronze, or stainless steel; core tube, 305 stainless
steel; core and plug nut, 430°F stainless steel; seal, BUNA “N"; shading coil, copper; disc,
BUNA “N" and Nylon; spring, 302 stainless steel (General Service).
G. Manual reset safety shut-off valve shall open manually and close upon interruption of
current.
H. Electric current shall be AC of voltage shown on Division 26 drawings.
2.11 Electric Valve Actuators:
1. The valve actuator shall consist of a 120 volt, single phase, permanent split
capacitor, reversible type electric motor which drives a compound epicyclic gear.
A manual override handwheel shall be integral to the unit. The electric actuator
shall have visual mechanical position indication, readable from a distance of 25
feet, showing output shaft and valve position. Unit shall be capable of mounting
directly to butterfly valve without brackets or adapters.
2. The actuator shall have an integral terminal strip for wiring to power supplies.
Cable entry shall be by means of two (2) 1” NPT threaded connections. Cable
entries shall have UL recommended gland stops within the NPT hole to prevent
glands from being screwed in too far and damaging cable.
3. The actuator shall be constructed to withstand high shock and vibrations without
operations failure. The actuator cover shall have captive bolts to eliminate loss of
bolts when removing the cover from the base. One copy of the wiring diagram
shall be provided with the actuator.
4. Actuators with 600 in-lbs or more output torque shall have two adjustable factory
calibrated mechanical torque limit switches of the single pole, double-throw type.
Motor rotor shaft shall run in ball bearings at each end of the motor.
5. The actuator housing shall be manufactured to NEMA 4 Standards and shall be
UL recognized.
6. The environmental temperature range of the actuator shall be -20ºF to +140ºF (-
30°C to +60°C).
Project No.: 10145
550 15 th Street Dual Brand Hotel
03/16/2012
23 0523 - 6 GENERAL-DUTY VALVES FOR
HVAC PIPING