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READ AND **REMOVE THIS PAGE** BEFORE PLACING

THE SPECIFICATION SECTION IN THE CONTRACT

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[DIVISION 15: MECHANICAL]{.underline}

SECTION 15752 - LIQUID HEATING SYSTEM

USE: Furnishing and installing a steam heating system.

**NOTES TO SPECIFIER:**

A. Options within paragraphs are identified by enclosure in brackets;
blank spaces enclosed by brackets \[\_\_\_\_\_\] provide for information
to be inserted, as appropriate, to individual projects.

B. **TO AVOID CONFLICTING REQUIREMENTS AND COSTLY MISTAKES,** the
specifier must edit (delete, substitute or add to the text). The
remaining paragraphs must be renumbered.

C. DELETE FOR FINAL COPY: Notes to the Specifier, located between lines
of asterisks; all \[brackets\], [underlining]{.underline}, **boldface**,
and *italics*, within the paragraphs; and this page. (Open Reveal Codes
\[alt F3\] to do this accurately.)

D. [To Edit "(Footer B)":]{.underline} (Corel 8). **ENTIRE FOOTER SHOULD
BE BOLDED.** Click in the footer and delete the "Project Name (ftr B)"
text and replace it with the **Name of the Project (upper and lower
case)**. Replace date with current MM/YY (WITHOUT BRACKETS).

E. The Guide Specifications are intended to be continuously reviewed and
revised. User's technical comments are appreciated. Also, other related
or similar specification that are written "from scratch" that could
benefit others, or other questions can be sent to NSTC A/E Group, ST
110, or call (303) 987-6868.

**DRAWING DATA REQUIRED:**

**REQUIRED SPEC MODIFICATIONS:**

**REVISIONS OF THIS SECTION:**

CSI format, editorial changes: 12/01

Metric:

Technical Update: 10/85

SECTION 15752

LIQUID HEATING SYSTEM

[PART 1: GENERAL]{.underline}

1.01 SUMMARY:

A. Section Includes: This section consists of furnishing and installing,
and testing of piping and equipment comprising the hydronic heating
system of the office building.

1.2 QUALITY ASSURANCE:

A. Materials and Practices: Material and practices used shall conform to
the Uniform Plumbing Code and Uniform Mechanical Code.

1.3 SUBMITTALS:

A. Shop Drawings: Submit shop drawings in accordance with Section 01300
‑ Submittals.

B. Manufacturer\'s Data: Submit catalog literature for pipe system zone
flow control valve and thermometers.

[PART 2: PRODUCTS]{.underline}

2.1 PIPE AND PIPE FITTINGS:

A. Sizes 3 Inches and Smaller: Sizes 3 inches and smaller shall be type
L or M copper tube with pressure type solder fittings utilizing 95‑5
tin‑antimony, Staybrite No. 8 or Handy & Harmon silver solder.

2.2 VALVES:

A. Zone Control Valve: The zone control valve shall be similar to the
existing zone control valves equivalent to White‑Rodgers Type 1311‑103,
25 vac, 0.4 amps, 1\" pipe size. Valve closes upon signal from zone
thermostat, indicating that thermostat is satisfied.

2.3 THERMOMETERS:

A. Type: Industrial type thermometer with 7‑inch long aluminum case,
red‑reading mercury tube, white satin background, and protected by a
shatterproof plastic lens. Equal to Ametek/U.S. Gauge Fig. MN‑035, 30EF
to 240EF temperature range.

[PART 3: EXECUTION]{.underline}

3.1 INSTALLATION:

A. Piping:

1\. Provide necessary piping to complete installation as shown in the
drawings.

2\. Piping shall run level without sags (dips) or be slightly sloped up
in the direction of flow.

3\. Use brass wells for installing thermometers in piping.

4\. Extend piping header at boiler to accommodate one additional zone
control valve and piping.

5\. New piping shall be insulated.

3.2 TESTING:

A. Hydrostatic Test: Hydrostatically test new pipe at 50 psig for 15
minutes prior to insulating pipe.

[PART 4: MEASUREMENT AND PAYMENT]{.underline}

4.1 METHOD OF MEASUREMENT:

A. Units: The work described in this section will not be measured for
payment.

4.2 BASIS OF PAYMENT:

A. Payment: No direct payment for the work described under this section
will be made. Contractor shall include consideration for this item in
the bid price for other items of the Contract.

END OF SECTION