L. The control language shall, at minimum, be able to implement the following logic
operations and relational operations:
1. and
2. or
3. not
4. nand
5. nor
6. If then else statement
7. less than
8. less than or equal to
9. equal to
10. greater than or equal to
11. greater than
12. not equal to
M. The BMS Specialist shall be responsible for the stable operation of all control loops. The
BMS Specialist shall provide self-tuning PID control algorithms. Verify that the control
loops are stable.
N. If any BMS or system component should fail during the operation of a system, then the
BMS shall execute the procedure detailed in the sequences of operation. Where a failure
mode is not provided for a BMS controlled item of equipment the BMS Specialist shall
obtain details of the required failure mode from the Employer.
O. Where there is multiple filter banks the BMS Specialist shall furnish a differential pressure
switch across each filter bank. The BMS Specialist may elect to monitor each filter alarm
individually or may elect to wire the differential pressure switches such that if any filter is in
alarm a general filter alarm shall be monitored by the BMS.
P. Any information required by the BMS Specialist for the implementation of the software
shall be requested in writing from the Engineer at least 2 weeks prior to the time it is
required. Submit the request for information in the form of tables or forms for the
Employer’s personnel to complete and return.
Q. The operating sequences detailed in this section shall only apply when the BMS is
controlling and monitoring the system in the BMS software control mode.
R. In cases where outside air duct cross-sectional area exceeds a certain amount, multiple
damper sections rather than a single section shall be furnished and shall be controlled in
groups. Refer to the mechanical trade documents to determine the number of damper
sections and the number of actuators.
S. Where indicated on the control diagrams, the BMS Specialist shall interlock motorized
dampers with fans such that when the dampers are closed the associated fans stop.
T. The BMS Specialist shall provide any modifications to the operating sequences as requested
by the Engineer without additional costs until the substantial completion of the entire BMS.
U. The sequences of operation are detailed on the control drawings that form part of these
documents. Where sequences have not been specifically identified for a mechanical,
electrical or public health system/component, the BMS Specialist shall obtain instruction
from the Engineer and shall implement the required sequences at no additional cost to the
Employer.