A06_Specifications.docx

Specifications Condition: New Make: Metron (or equal to) Model: M300 (or equal to) Product Features:

1. Minimum Running Period Timer to prevent cycling of the system. This timer is factory set for 10 minutes. A drop in system pressure will initiate the start sequence and the running period timer. The pump will run until the timer times-out or the system pressure is restored.

2. By-pass Jumper installed on a convenient terminal strip which bypasses the running period timer for manual stop operation. When automatic stop is required, just remove the jumper. A stop push-button is provided for emergency stop.

Quality Assurance:

1. Perform work in accordance with NFPA 20.

2. Equipment: Bear UL and FM label and marking.

3. Components: Shall be UL listed or UL recognized.

4. The controller shall be completely tested at the factory prior to shipment. This test shall verify proper operation of all normal automatic and manual functions along with the continuity of all dry contacts for remote alarms. The test shall also include a high potential voltage test of all primary power circuits equal to twice the rated voltage plus 1000

Additional Specifications:

1. The controller shall be housed in a UL Environmental type 2 Drip-proof enclosure, fabricated from heavy gauge cold rolled steel per the requirements of UL 508. The controller shall be designed for Across-the-line starting and include the following:

a. Isolation switch: Externally operable, quick break type sized at least 115% of motor full load current.

b. Circuit breaker: Externally operable sized at least 115% of the motor full load current.

c. The locked rotor overcurrent protection shall be provided by a separate overcurrent monitor of the microprocessor type, set at 300 percent of motor full load current and shall have a trip time between 8 and 20 seconds at 600 percent of motor full load current. The overcurrent monitor shall also have as standard a set of dry contacts and LED visual indication that activates whenthe motor current exceeds 125% of normal.

d. The isolation switch and circuit breaker shall be operable via a single operating handle. When moving the handle from the OFF to ON position, the handle shall sequence the isolating switch on first and then the circuit breaker. When the handle is moved from the ON to the OFF position, the handle shall sequence the circuit breaker off first and then the isolating switch. This sequencing operation shall prevent the isolating switch from interrupting motor current. The operating handle shall be capable of being padlocked in either the ON or OFF position for installation and maintenance safety. The operating handle shall permit normal tripping operation of the circuit breaker.

e. Controllers utilizing a 100-600 amp circuit breaker shall be suitable for use on a circuit capable of delivering 100,000 Amps Symmetrical short circuit current. Controllers utilizing a 800-1200 amp circuit breaker shall be suitable for use on a circuit capable of delivering 50,000 Amps Symmetrical short circuit current.

f. Provisions shall be made to display the amps/volts of each phase on the face of the enclosure. Display shall automatically store the highest ampere reading. Display of amps/volts and retrieval of highest current reading shall be accessed via a push-button on digital display. In addition to the digital display, provisions shall be made between the circuit breaker and the isolation switch for using a clamp-on type ammeter to measure motor current draw.

g. Motor contactor: IEC rated, UL listed, capable of being operated by an external emergency operating handle. The contactor shall be horsepower rated as determined in UL 218 for the applicable horsepower and voltage.

h. Pressure switch: With adjustable independent high and low set points. The switch shall be mounted inside the controller cabinet and plumbed to an external coupling for field connection.

i. Pressure Recorder: A DC Powered Seven (7) Day Pressure Recorder mounted on exterior of enclosure shall be provided.

j. Externally mounted pilot lights: To indicate controller primary power is available and phase reversal of normal power. Primary power on light to be wired in true power on configuration. Loss of any phase or control power will cause light to turn off.

k. Solid state running period timer: Set for a minimum of ten (10) minutes, per NFPA 20, shall be provided to keep the motor running when started automatically. The timer shall have a pilot light to indicate when the timer is in the timing mode. The controller shall be factory set for manual stop with terminals provided to allow field conversion to automatic stop.

l. Control circuit transformer: Heavy duty type with a minimum rating of 150 VA without integral overcurrent protection per the requirements of NFPA 20.

m. Dry alarm contacts for remote alarm of PUMP RUNNING, MOTOR OVERLOAD, PHASE REVERSAL, and CONTROLLER POWER AVAILABLE shall be supplied. One normally open and one normally closed contact for each alarm shall be supplied. Controller power shall be monitored by a three phase power monitor. The monitor shall trip on either LOW VOLTAGE, SINGLE PHASE, LOSS OF POWER, or PHASE REVERSAL. Normal power shall be indicated by a Green LED on the power monitor and a tripped condition shall be indicated by a Red LED.

n. A circuit for manual remote starting of the controller shall be supplied requiring only a contact closure to initiate. This circuit shall not be capable of stopping the controller remotely per NFPA o. All components shall be front mounted and wired for ease of maintenance and allowing the unit to be mounted flush against a wall.

p. The controller shall be capable of the addition of optional control features.