Page 53 - 2014 SDCA Project

Building Controls System

I. INTRODUCTION

Building Controls is always the most misunderstood and mistreated application of those included into the Building Systems discipline, which typically includes Mechanical-
HVAC, Electricity, Plumbing, & Communications. This industry is geared to provide an “all inclusive” stream of technologies and information for which the potential
Owner/User tends to acquire a certain level of automated advantages that include a myriad of little conveniences. In short the Friends for Refugees Center needs a “smart”

controls system configured to be “User Friendly” in terms of the non-technical staff that will administer or run the facility. The HVAC system shall incorporate a single t-stat per
room to increase the system controllability while ensuring expected comfort.

II. OPERATION

This system should offer a web-interface, dedicated interface screen or dedicated button-switch panel that allows Administrative Users to set areas of the building as Occupied,
Unoccupied, or off via schedules or time-based overrides to allow usage for random events.

Upon setting systems to Occupied Mode the Controls system shall be “smart” enough to index to On and Occupied those mechanical systems (such as air handling
component(s) and exhaust fan(s) associated with the area to be used. This system shall be a User adjustable “time of use” setting. Once indexed to Occupied Mode all

associated systems shall run continuously until the typical time of use duration is completed. It is anticipated that the Dedicated Outdoor Air System will operate 24/7.
Occupancy sensors shall confirm that no occupant is present in monitored spaces prior to setting the systems back to either Unoccupied Mode or simply Off. This pre-

configuration will ease the system utilization on behalf of the typical Users who usually are not aquatinted with the technical details to operate it. All systems should be
configured to operate as described in order to deliver a functional system to the Administrator.

III. COMFORT

This system should include a built-in “Pre-Occupancy Mode” function that will use internal algorithms to determine the best earliest time to index pre-selected systems to On
or Occupied Mode so the space(s) are at set point at the beginning of the scheduled occupancy. Also the local screen shall include a pop-up window to flash whenever the
systems are indexed to Occupied manually to advise the User(s) that it will take some time to achieve the desired set point(s). Said screen shall flash intermittently until said

set point(s) are achieved. This feature will avoid the usual service calls generated due to this scenario.

IV. INTEGRATION

This system should include integration and monitoring of the lighting control system, fire alarm system, plumbing system, photo-voltaic solar system, building alarm/security

system and additional systems listed below and as required by owner.

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