Complete Compiled Specification.pdf - Peck Ormsby Construction

non-volatile memory, which is not dependent upon the presence of a
battery to be retained.
c. The VAV terminal manufacturer shall provide a multi-point, averaging,
differential pressure sensor mounted on the inlet to each VAV box. The
BAS contractor shall supply a line to low voltage transformer, of sufficient
capacity, to power the controller plus all reheat valves and/or contactors
and fan circuits associated with the VAV terminal and actuator
assemblies. The BAS contractor shall provide all reheat control valves to
the mechanical contractor for mounting and piping. The BAS contractor
shall provide and install all wiring between the valve and controller and
between the room sensor and the controller.
d. Controller shall have manual positioning of the actuator and include a
visual indication of the position of the actuator.
e. Controller shall have LED indication of transmit/receive communications
performance, as well as for the proper/improper operation of the
controller itself.
f. Controller shall support a peer to peer network using two wire type
independent topologies without regard for the polarity of wiring. Wiring of
communications shall support "Ts", "Stars", "Active Ts", "Active Stars"
and "Distributed Stars" and other configurations without the use of
termination resistors.
g. Controller shall have zone temperature control of +/- 1 Deg F from
setpoint.
h. Controller shall have internal differential pressure transducer for
pressure independent applications with an accuracy of ~ 5%.
Controller shall be powered by a 24 VAC power source and shall comply
with Class 2 wiring requirements.
j. Controller shall be rated for service from 32 Deg. F to 131 Deg. F.
k. Controller shall meet or exceed IEC 801.5 and ANSI C62.41 (IEEE-587,
Category A & B) for surge immunity, IEC 801.4 for transient compliance
and IEC 801.2 for electrostatic discharge. Where
mounted in supply or return air plenums, the MNL-V2 enclosures shall
comply with the requirements of UL 94-5V.
l. MNL-V2 Input/Output.
1) Self-calibrating Velocity Pressure Input (0-2" WC). The velocity
pressure transducer shall be a continuously self-calibrating unit,
which determines the zero velocity pressure point, by equalizing
the pressure across the sensing element, every 10-15 seconds.
2) Room Temperature Input.
3) Occupancy Override Input.
4) VAV Box Damper Output: Unless otherwise specified, the
controller shall provide a minimum 6 N-m/53 Ib./inch integral
electric actuator, having a 90 degree stroke rotation in a time of
3 minutes maximum.
5) Occupancy or Status Input.
6) 0-100% Position Indication of Primary Damper Actuator, to be
direct feedback from damper actuator.
7) Room Setpoint Input.
8) Auxiliary Temperature Input.
9) Discharge air temperature sensor, located downstream of
reheat coil.
m. In addition to the inputs and output points described above, MNL
controllers for fan assisted and/or reheat configurations, provide the
SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDITION
AUTOMATIC TEMPERATURE CONTROLS 15900-7