UCCS Temperature Control Specifiers Guide Mechanical Division 15950: Basic Control Materials and Methods I. Part 1 - General 1.01 Special Conditions 1.02 Scope 1.03 Related Work Specified Elsewhere 1.04 Work Included 1.05 Definitions 1.06 Drawing and Specifications 1.07 Submittal Data and Shop Drawings 1.08 Project Record Documents 1.09 Demonstration and Training 1.10 Warranty 1.11 Quality Assurance 1.12 Ownership of Proprietary Material Index II. Part 2 - Products 2.01 Manufacturers 2.
SECTION 15950 CONTROLS [Note to Consultant: These standards incorporate the suggested wording for contract specifications. The consultant is responsible for making sure that the specifications are edited to meet the scope and intent of the project. Items which specifically require editing are highlighted in bold and enclosed in brackets.] PART 1 - GENERAL 1.
flows, shall be by the Balancing Contractor. The Controls Contractor shall provide assistance to the Balancing Contractor with control adjustments as required to obtain design flows by: 1. Providing on-site instruction on the proper interfacing and operation of their equipment 2. Providing the necessary software for use with the balancer's personal computer for interfacing with their control equipment.
and approval. D. Coordination: This Contractor shall interface with controls furnished with equipment. Provide additional control devices, interlock relays, and signal conditioners when necessary to accomplish specified sequences. E. The system shall include all interlocks, field devices, wiring, piping, hardware, and software required to provide a complete, functional system in accordance with these specifications and drawings. F.
scope of demolition is unclear, consult with Shop technician prior to bid submittal. Approval from HVAC/Controls must be given prior to bid submittal for waiver of demolition. 1.05 DEFINITIONS A. These specifications and drawings require finished work, tested, and ready for operation. Wherever the word "provide" is used, it shall mean "furnish and install complete and ready for use." B. "Contractor" shall mean the Controls Contractor performing work under this Division of the Specifications. C.
and product data shall be submitted for approval per Division 1, Section 01300. B. Contractor agrees that shop drawings and/or submittals processed by the Engineer are not change orders, that the purpose of shop drawings and/or submittals by the Contractor is to inform the Engineer which equipment and material he intends to furnish and install. C. Submittal data and shop drawings shall conform to the following requirements: 1.
c. Panel software name and serial number d. Type of controller: The network diagram shall depict the actual connection sequence of the devices, including distances between devices, type of wire used and serial number of controller. 2. The second drawing in the control package shall consist of actual installation details, a valve schedule, and a damper schedule.
b. Sequence of operation for all controlled and monitored points for each system. Sequence shall be on same drawing as corresponding system schematic. c. A complete input/output schedule for each DDC panel and dedicated controller including point name (the same name to be used in software), functional description of each point, point type, complete wiring diagram for each point from controller to input or output device, field device type, and location, etc. d.
B. Prior to Final Completion of the installation, prepare complete Operation and Maintenance manuals. Refer to Division 1, Section 01300, and Division 15, Section 15050, for requirements. Also provide one set of digital media containing all CAD-prepared drawings. The file format shall conform to the requirements in the most current version of Division 00050 of the UCCS Construction Standards (Computer - Aided Drafting and Facilities Management Standards). A copy is available upon request. 1.
two- to four-hour sessions over the life of the warranty period. All instructional material shall be available to each employee at each training session up to a maximum of ten (10) individuals. F. All demonstration and training sessions shall be coordinated with the University HVAC supervisor. 1.10 WARRANTY A. The warranty period shall begin as authorized by the Owner's representative in writing. Authorization will not be given before the following conditions are met.
E. The Contractor shall optimize all control software and tune all control loops to assure acceptable operating and space conditions and peak energy efficiency. This shall include changes needed to optimize operation of the systems even if not explicitly described in Control Strategies. F. The Contractor shall include the extended warranty for upgrades of ethernet controllers installed in the building for the warranty year. G.
3. Project database, 4. Job-specific application programming code, 5. All other documentation. PART 2 - PRODUCTS 2.01 MANUFACTURERS A. Regardless of the manufacturer, the specific products and design chosen shall meet the requirements of this specification. B. Use the manufacturers listed below or in the description of the devices: 1. Control Wiring a. TVSS surge protectors 1. Leviton 51010WM or Kelle HSP-121BT IRU or pre-approved equal. b. Infinet Communication Wiring 1.
1. 2" - 12" Size; Siemens 2-way Butterfly Assemblies with Siemens Electric Actuators or pre-approved equal; Keystone Fig. 222. d. Two-Position or Modulated, Single-Butterfly Valve applications. 2”-12” Size; Keystone Fig. 222, Johnson VF Series Powers/Siemens BV2W Series with electric actuator a. or pre-approved equal Control Dampers a. Motorized 1. Johnson, Ruskin, or pre-approved equal. b. Outdoor and/or return air mixing dampers and face-and-bypass (F&BP) dampers 1.
e. Desiccant Compressed Air Dryer 1. Hankison Dehydrafilter, or approved equal. 7. Actuators and Positioners - Pneumatic a. Johnson, Kreuter, Powers, Honeywell, or approved equal. b. Butterfly-valve actuator 1. Powers, Johnson ,Keystone Fig. 790, or approved equal. 8. Auxiliary Devices - Pneumatic a. Room Thermostats 1. Johnson, Honeywell or Siebe T12 through T33. b. Pressure-Electric (PE) Switches 1. Johnson, Honeywell, Barksdale, or approved equal. c. Electro-Pneumatic (EP) Solenoid Air Valves 1.
4. Duct-mounted a. (UCCS to add preferred manufacturer here) 10. Transmitters - Solid State a. Water, Compressed Air, Steam pressure transmitters 1. See 2.11 B [3.] b. Water differential pressure transmitters 1. Rosemount series 3051 or pre-approved equal c. Water differential pressure transmitters 1. Dwyer Capsuhelic or pre-approved equal 2. with Hanson fittings d. Air differential static pressure transmitters 1. Air Monitor, Dwyer, or pre-approved equal 2. For critical applications a. See 2.
1. Barksdale, Mercoid series 1000 or pre-approved equal. c. Horn Strobe 1. Federal Model 400ST with Model 350 horn and LCMB bracket. d. Multi-Level Control Panel for Liquids 1. McDonnell Miller PCH-G or pre-approved equal with proper NEMA Rating. e. Refrigerant Vapor Sensor 1. Trane, General Analysis Corporation, Model SAM or pre-approved equal. Check w/ refrig BARACH / YOKOGAWA. 12. Actuators - Electric (current or voltage only) a. Siemen’s b. Belimo, Johnson, or Honeywell 13. Safety Controls a.
2.02 AIR TUBING AND CONTROL WIRING A. Air tubing shall be either copper (ACR) in exposed areas, or Type FR polyethylene (within conduit). Soft copper is acceptable in concealed areas. B. Cables shall be shielded when so recommended by manufacturer. Conductor size shall be in accordance with manufacturer's recommendations subject to specified minimum size. See Part 3 for allowable types. C. All insulated wire to be copper conductors, UL labeled for 90C minimum service. D.
2. Sizing Criteria: a. Two-position service: Line size. b. Two-way modulating service: Pressure drop across the valve in a wide-open position, with full flow through the valve, shall be equal to 50% of the available pressure differential between the mains, with a minimum of 4 psi. c. Three-way Modulating Service: Pressure drop across the valve in a wide-open position, with full flow through the valve, shall be equal to twice the pressure drop through the heat exchanger (load), with a 3 psi minimum.. 3.
5. Individual damper sections shall not have a single dimension (length or height) greater than 48". Provide a minimum of one damper actuator per section. 6. Modulating dampers shall provide a linear flow characteristic where possible. Size the dampers to achieve this characteristic and and consider approved blade dampers fot this application. 7. Dampers shall have exposed linkages. B. Control dampers shall be parallel or opposed-blade type as below or as scheduled on drawings. 1.
let within 5’ of the enclosure. G. All control panel locks shall conform to the University standard lock for control cabinets. Contractor shall give the keys to the HVAC Shop at completion of training. 2.06 COMPRESSED AIR SUPPLY - PNEUMATIC [Note to Consultant: Describe the pneumatic air source for the project. Where there is an existing source, determine whether it has adequate capacity to handle the additional load before using it for the project.
3. Refrigerant for the dryer shall be R-134A, or approved, non-CFC, alternate. 4. Dryers Shall be adjusted for 6,400 feet above sea level. C. Filter and PRV Station: 1. Provide a two-stage, aerosol, coalescing autodrain, submicron type air filter assembly with replaceable element, 99.99% efficient for solids and oil droplets 0.01 micron and larger at rated capacity. Sized for maximum of 1 psi drop at 80 psig inlet and rated system capacity, 10 SCFM minimum. Rated working pressure: 150 psig minimum.
provide smooth, reliable actuation at all times. Modulating valves shall be complete with positioners by the same manufacturer. Where indicated, position switches by the same manufacturer shall be provided. 2.08 AUXILIARY DEVICES - PNEUMATIC A. Room Thermostats: 1. All room thermostats shall be high-capacity, relay type, with pneumatic feed-back, adjustable sensitivity (1 to 4 psi°F minimum), and an output test port.
a. Pneumatic signals: 0-20 psig. b. Electric signals: 4 to 20 mA 2. Span (calibration) and start point shall be fully adjustable. E. Indicating Gauges and Test Ports: 1. Control-signal indicating and test gauges shall be 1-1/2", back-connected, 0 to 30 psig. 2. Test ports on the air lines connected to a differential air pressure sensor shall consist of a tee in the line with a removable cap on the branch port.
2. Line-voltage thermostats shall be UL-listed, SPDT, SPST, or DPST with contact rating suitable for application, maximum 2F differential. 3. Low-voltage thermostats shall be single or multi-stage heating and/or cooling type as required by application. a. Combination heating/cooling thermostats shall have independent adjustments for heating and cooling setpoints and shall not allow setpoint cross-over. b. Provide individual heat or cooling anticipator for each control stage.
arrangement and rating suitable for application; line voltage units UL-listed. E. CO2 sensors: 1. (UCCS to add CO2 sensor product requirements here) (LEED EQc1: Carbon Dioxide Monitoring) 2.10 SOLID-STATE SENSING DEVICES A. Space (room) sensors shall be surface-mounted. Space sensors shall have an exposed sensing bead mounted behind a suitable protective enclosure. Sensors mounted to the back of a blank junction-box cover are not acceptable. B.
response time. Zero and span shall be adjustable. KELE Model PTXIE, or equal. Install with isolation valve. 4. Water differential pressure transmitters for flow measurement shall have stainless steel diaphragm construction, proof-pressure of 150 psi minimum, and the accuracy shall be 0.25% of calibrated span. Overrange limit (⊗P) and maximum static pressure shall be 3,000 psi. Transmitter shall be complete with 4-20 mA output, required mounting brackets, and five-valve manifold.
2.12 AUXILIARY DEVICES - ELECTRIC A. Flow-proving or equipment-operating-status switches shall be paddle, differential-pressure, or current-sensing types as indicated below. 1. Paddle-type switches (water service only) shall be UL-listed, SPDT snap-acting with pilot duty rating (125 VA minimum). Adjustable sensitivity with NEMA 1 enclosure unless otherwise specified. a.
I. Refrigerant Vapor Sensor: Analyzer shall be microprocessor-based and employ infrared (lR) sensor technology, to provide sensing down to one (1) part per million (ppm) and shall be chemical-compound-specific and calibrated for either refrigerant R-11, R-12, R-22, R123, R-134a, or other refrigerant as required by the chiller system. Any installed unit can be switched to monitor, at a future date, another refrigerant type by replacing one component and recalibrating (i.e. R-11 to R-123, etc.).
provide smooth modulating control under design flow and pressure conditions. 2. Valve actuators shall provide tight close-off at design system pressure. Modulating actuators shall provide smooth modulation at design flow and pressure conditions. 3. Provide feedback transmitters and/or end switches where specified. 4. Actuators shall be specified per the Control Sequences section.. Actuators relying on batteries are not acceptable. 2.14 SAFETY CONTROLS A.
Installation methods/materials as follows: 1. Concealed and Inaccessible: Copper tubing (type ACR) without joints or FR plastic without joints in metal conduit. Exceptions: Room thermostat drops in stud walls may be FR plastic tubing in areas with lay-in ceiling. Lines encased in concrete must be in metal conduit, and their location must be shown on as-built control drawings. 2.
D. Provide ball valves or manifold if specified to isolate the instruments from the process. E. Impulse Line piping for flow transmitters. The following information to be used for proper location & piping of differential pressure transmitters. 1. For liquid flow measurement taps should be made to the side of the line to avoid sediment deposits, with transmitter below the taps so gases or air will vent. 2. Make impulse lines short as possible. (Loops in impulse line piping not allowed.) 3.
I. Low-voltage (24V or less) AC or DC wiring shall not be run in conduit containing 120 VAC wiring. J. Infinet Communication Wiring: 1. Splicing is not acceptable. 2. Label all junction boxes. Labels provided by the UCCS HVAC Shop K.
terminal on the controller. C. Expansion Modules: Delta DDC 1. The Controls contractor shall follow the specifications shown in the Delta Hardware Installation Guide unless stated otherwise herein. 2. The use of Delta DCC expansion Modules shall be pre-approved by the University HVAC Shop. 3. Expansion modules can be used only with authorizations from HVAC shop. D. Infilinks Installation Need revision from Delta for this section 1.
1. Not allowed. D. Standard Nomenclature for Valve and Damper Position Description: 1. Set up the conversion table for each valve or damper control output so that 100% OPEN = open and 0% OPEN = closed. 2. For mixed-air dampers, 100% OPEN = fully open outside air damper and closed return damper. 3. For face and bypass dampers, 100% OPEN = face damper fully open and bypass damper closed.
L. For all applications utilizing outside-air, relief, isolation or exhaust dampers; install an E/P to automatically close the dampers when its associated air-handling unit or fan is turned off. The E/P shall be wired (not thru software) so the damper is closed when the fan or AHU is turned off with the starter switch in the OFF or AUTO position (or in either the Bypass or VFD modes when a variable-frequency drive is used.
3.07 CONTROL PANELS A. Refer to Part 2 - Products for construction details. B. Field wiring shall be in conduit . C. Panels shall be wall-mounted at eye level for accessibility and service. D. Local control panels shall be located within same room of system served otherwise location shall be approved by UCCS HVAC Shop. E. Control devices shall be installed in panels.
information. 6. When connecting DDC controllers, terminating of inputs and outputs shall be color coded as follows : 120VAC shall be black = hot, white = neutral, green = ground 24VAC shall be (+) black with white tracer, (-) white with black tracer 24VDC shall be (+) red with black tracer, (-) black with red tracer All pneumatic tubing shall be labeled within 2" of termination with a descriptive identifier. 7. All metal and plastic engraved labels shall be secured with chains, nylon tie-wraps, or rivets.
formance tests. B. The tests described in this section are to be performed in addition to the tests that the Contractor performs as a necessary part of the installation, startup, and debugging process. Control system testing shall be coordinated with the HVAC Shop. C.
F. This Contractor shall demonstrate HVAC alarms prior to placing ventilation systems in service. G. The control systems will not be accepted as meeting the Requirements of Completion until all tests described in this section have been performed to the satisfaction of both the Engineer and Owner. Any tests that cannot be performed due to circumstances beyond the control of the Contractor may be exempt from the Completion Requirements if stated as such in writing by the Owner's representative.
G. System logs, trend logs, and event-initiated logs shall be set up to provide historical and real-time monitoring of system operation. Logs shall be grouped by equipment. H. Safety Shutdowns - Boilers and Chiller: Boilers and/or chiller will be provided with all required safety controls as specified in Division 15. Safety trip shall shut down respective boiler or chiller directly and shall be annunciated at the Central Work Station. I.
j. Each miscellaneous monitored or controlled point 2. Menu Penetrations: “Buttons” shall be provided to allow the user to easily move among the various graphics and menus. At any time, the operator shall be able to return to the main menu with one mouse click and shall switch from graphic to other modes within two mouse clicks. C. Alarm Setup: 1. UCCS personnel shall program all general equipment alarms not specified elsewhere in this section.
temperature controls contractor. The contractor shall confirm that the communication network linking controllers within the [Add building name] functions properly, before connecting the new controllers to the campus network. 3.15 DDC SOFTWARE A. Provide sufficient internal memory for the specified control sequences and logging. There shall be a minimum of 15% of available memory free for future use.