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QUESTIONS/ANSWERS (2)

Solicitation #: FA8571-12-T-0009

Q1. THE STATEMENT OF WORK CALLS OUT 4 HANGAR DOORS, BUT IN APP A DETAIL A IT ONLY SHOWS TWO HANGAR DOORS, IS THIS FOUR HALF’S OF TWO HANGAR DOORS OR ARE WE TO BID BOTH BAYS AS SHOWN BY THE ARROWS BELOW? (See Picture 1 below)

A1. It is four halves of two hangar doors.

Q2. THE CONTRACTOR SHALL SUPPLY AND INTEGRATE THE NEW NEMA 4X ENCLOSURE WITH START PUSH BUTTON(S), STOP PUSH BUTTON(S) AND KEY LOCK (SEE APPENDIX A). DO WE NEED TO MEET

AFHOSH STANDARDS?

A2. We do not follow AFOSH standars however, we do need to follow standards identified in

AFI91-203

BELOW ARE THE AFOSHSTD FOR HANGAR DOOR CONTROLS.

- AFOSHSTD 91-100 7.2.3.3. DOOR CONTROLS. CONTROLS WILL BE INSTALLED WHERE THEY

PROHIBIT THE OPERATOR FROM ENTERING INTO HAZARDOUS AREAS AND INSTALLED SO THAT

THE OPERATOR HAS A CLEAR VIEW OF DOOR TRAVEL. CONTROLS WILL BE OF THE TYPE B THAT

WHEN THE OPERATOR REMOVES PRESSURE THE DOOR WILL STOP MOVEMENT. A HINGED

COVER OR OTHER PROTECTIVE DEVICE WILL BE INSTALLED OVER THE “CLOSE” SWITCH OR

BUTTON TO PREVENT INADVERTENT ACTIVATION. CONTROLS MUST NOT PLACE THE OPERATOR

IN HARMS WAY. WHERE FEASIBLE, PLACE LIMIT SWITCHES IN APPROPRIATE LOCATIONS TO

KEEP OPERATOR AWAY FROM HAZARDOUS AREAS. OPERATING INSTRUCTIONS WILL BE

APPROVED BY THE SQUADRON COMMANDER OR DESIGNATED REPRESENTATIVE AND ROUTED

THROUGH THE INSTALLATION SAFETY OFFICE FOR REVIEW AND COORDINATION.

- A15.5. (ADDED) ARE CONTROLS THE TYPE THAT WHEN THE OPERATOR REMOVES PRESSURE THE

DOOR WILL STOP MOVEMENT? (REFERENCE AMC SUP PARAGRAPH 7.2.3.3.)

Response; Yes; AFI 91-203-(24.14.8.2)

- A15.6. (ADDED) FOR ALL CENTER DOOR SWITCH OPERATIONS, IS “OPEN” PLACED AT THE TOP

POSITION AND THE SWITCHES WIRED SO THE DOORS OPEN WHEN “OPEN” IS SELECTED?

(REFERENCE PARAGRAPH 7.2.3.3.)

Response: Yes; AFI 91-203 (24.14.8.2)

- A15.7. (ADDED) HAS A HINGED COVER OR OTHER PROTECTIVE DEVICE BEEN INSTALLED OVER

THE “CLOSE” SWITCH OR BUTTON TO PREVENT INADVERTENT ACTIVATION? (REFERENCE

PARAGRAPH 7.2.3.3.)

(Response: Yes; AFI 91-203 (24.14.8.2)

- A15.10. (ADDED) ARE LUMINESCENT OR REFLECTIVE DIRECTIONAL ARROWS PLACED ADJACENT

TO EACH CONTROL AND ON HORIZONTAL SLIDING DOORS TO INDICATE THE DIRECTION OF

DOOR TRAVEL FOR EACH CORRESPONDING SWITCH WHERE NOT EASILY UNDERSTOOD?

(REFERENCE PARAGRAPH 7.2.3.2.)

Response: Yes; AFI 91-203 (24.14.8.1)

Q3. DO WE NEED TO INCLUDE WARNING DEVISES? BELOW ARE THE AFOSHSTD FOR HANGAR DOOR

CONTROLS.

A3. YES, ref AFI91-203 (24.14.8.2.1)

- A15.1. (ADDED) TO PREVENT CONFUSION, HAVE POWERED HANGAR DOOR DESIGNS

INCORPORATE AN ALARM SOUNDING DEVICE WITH A SOUND THAT IS DISTINGUISHABLE FROM

THE FACILITY FIRE ALARM AND AUDIBLE ABOVE NORMAL NOISE LEVELS? (REFERENCE

PARAGRAPH 7.2.3.1.)

Response; Yes; ref AFI91-203 (24.14.8.1)

- A15.2. (ADDED) IS THE WARNING DEVICE AUTOMATICALLY SOUNDED AT LEAST 5 SECONDS

BEFORE ANY DOOR SECTION MOVEMENT, SOUNDS CONTINUOUSLY WHILE THE DOOR IS BEING

OPERATED AND RESETS IMMEDIATELY AFTER MOVEMENT STOPS? (REFERENCE PARAGRAPH

7.2.3.1.)

Response; Yes; ref AFI91-203 (24.14.8.1)

- A15.3. (ADDED) ARE ADDITIONAL WARNING LIGHTS INSTALLED IN HIGH NOISE AREAS WHERE

THE AUDIBLE ALARM IS DIFFICULT TO HEAR? (REFERENCE AMC SUP PARAGRAPH 7.2.3.1.)

Response; Yes; ref AFI91-203 (24.14.8.1)

Q4. IS THERE A REQUIRED DOOR SPEED?

A4. No

Q5. THE NEMA 4X ENCLOSURE CONTROLS SHALL BE DESIGNED SO THAT THE INNER SET OF HANGAR DOORS MUST BE CLOSED FULLY BEFORE THE OUTER SET OF HANGAR DOORS BEGIN TO CLOSE. ALSO THE CONTROLS SHALL BE DESIGNED SO THAT THE OUTER SET OF HANGAR DOORS MUST BE FULLY

OPENED BEFORE THE INNER SET OF HANGAR DOORS BEGIN TO OPEN.

ASSUMING THE INNER AND EXTERIOR HANGAR BOTH HAVE TWO HALF’S. ARE THE INNER HALF’S TO RUN SIMULTANEOUSLY AT THE PUSH OF ONE BUTTON AND THE SAME FOR THE EXTERIOR DOOR, ARE THE TWO HALF’S TO RUN SIMULTANEOUSLY AT THE PUSH OF ONE BUTTON? OR ARE THE DOOR HALF’S

TO RUN INDEPENDENTLY?

A5. The two halves of one set of the hangar doors shall run simultaneously when a button is pressed.

EX: The interior door consist of four panels, (2) Left & (2) Right. When the button is pressed to open the interior door, the inner panels (L & R) begin to open. Once the inner panel opens to flush with the outer panel, both panels will continue to the fully open position.

Q6. CAN WE GET SOME INFO ON THE SIZE OF THE IDLER WHEELS? (AXLE DIAMETER, WHEEL DIAMETER

AND WHEEL THICKNESS). IT IS NOT CALLED OUT IN THE AS BUILTS.

A6. Exact size/dimensions of idler wheels not are not possilbe to determine at this time.

Picture 1