Rev. 13 November 1, 2016
Page | 7223 83 16 Radiant Heating- Radiant ceiling panel systems shall be designed for heating only.
- In all patient rooms, install radiant heating panels at the exterior walls. The radiant panels shall be installed near
each window associated with a patient room. Radiant panels may also be installed in patient toilets. - Valves
a. Use only two-way control valves for radiant he ating panels. Do not use any three- way control valve
schemes f or temperature c ont rol of radiant panels. - Heating Hot Water
a. The heating hot water service to all radiant panels shall be maintained at or be low the maximum tempe rature
recommende d by t he radi ant panel manufacturer.
b. The heating hot water service to all radi ant pa nels shall be adjustable to allow reduced temperature heating
hot water being sup plied at different times of the year. Take precautions during the Design Phase to
minimize noise in radi ant ceiling panel systems.
4.18 Division 26 – Electrical
Use pr efabr icated, enclosed, internally ins ul ated, galvani zed steel curbs, whe rever possible for utility c hases. Curb
heights shall b e coordinated with the r oof system design to provide 12" minimum roof base flashing height above the
finish roof surface elevation. Non-canted ba ses shall be used at all curbs.
Use insulated pipe chases with sheet m etal covers for pipe penetrations. Pitch pan- style r oof flashi ng details a re not
allowed.
Use non-penetrating pipe supports for rooftop conduits, raceways, cable trays, etc. Wood blocking supports
shall not be used. Approved manufacturers shall be Portable Pipe Hangers, Inc. or Miro Industries, Inc., with
manufacturer-recommended support types used. Utilize support manufacturer-provided de sign assistance as
necessary. Set s upports over roof membrane manufacturer's r ecommended walkway material (coo rdinate with roof
system design).26 05 00 Common Work Results for Electrical- Designs that involve changes to the electrical supply that will affect utility service shall be coordinated with UI
Utilities and Energy Management Department. - Electrical Closets
a. The finished flooring in electrical closets shall be concrete sealed for dust control.
26 05 13 Medium-Voltage Cables (Wire) - General
a. Minimum size wiring for power applications shall be #12.
b. 120/208 volt normal, 120/208 volt emergency, 277/480 volt normal, 277/480 volt emergency,
communications, and Fire Alarm wiring shall not occupy the same raceway.
c. For high harmonic branch circuits such as those serving lighting and electronic equipment, provide a
shared #10 neutral conductor for three phase conductors. For sensitive electronic and diagnostic equipment,
provide a separate #12 neutral conductor for each phase conductor. For branch circuit panels serving high
harmonic loads, provide double-sized neutral conductor.
d. Type AC (armored cable) and type MC (metal clad cable) shall not be specified. - Type of Wire and Connectors