Thermal and Cold Water Metering Unit - Drawings

Terms of Reference

for design of thermal energy metering unit (heating, WAN)

and cold water

residential building

14/1 Chigorina Street

Name of the organization - subscriber: SPASDOM Management Company LLC

Subject to registration: residential building

Object address: st. Chigorina, d. 14/1

Source Data:

- contractual heat load 0.4146 Gcal/h

incl. - heating 0.2286 Gcal/h

- no ventilation

- MCS (from gun assembly) 0.186 Gcal/h

- heat supply system: closed

- design temperature plot:

- in heating period (heating) 150/70 ° С

- during heating period (WCS) (separate input from CTP) 55 ° С

- in the heating period (ChC) 5 ° С

Design Heat Meter:

Heat meter Logic 9943-E1

manufacturing plant of ZAO NPF Logika, St. Petersburg,

No. Gosstandard State Register 29031-05

Composition of the heat measuring system:

heat calculator SPT943.2 (State Register No. 2889505) 1 pc.

electromagnetic flow converter PREM32L2D (State Register No. 1785806) 2 pcs.

electromagnetic flow converter PREM20L2D (State Register No. 1785806) 2 pcs.

set of platinum technical thermometers differential

KTPTR01 (NSX 100P, L = 80 mm) (State Register No. 1463805) 1 complex.

platinum thermal thermometer

TPT1 (NSX 100P, L = 80 mm) (State register No. 1464005) 1 pc.

platinum thermal thermometer

- GSM- Siemens MC35i modem 1 pc.

Measured and recorded values:

Volume, volumetric flow rate, coolant temperature, thermal energy, coolant quantity and average temperature for each day, thermal energy and coolant quantity with accumulated total, hourly parameters.

Scope of work for installation of metering unit (creation of required straight sections, required shut-off valves, etc.): create required straight sections, install Heat Calculator SPT, Thermal Resistance Converters, Electromagnetic Flow Meters "PREM" on the forward and reverse heating pipeline, HVAC pipeline and HVC pipeline.

Development of design documentation (as part of the project):

General Project Guidelines;

Actual schematic diagram of the heat assembly with indication of the place of installation of instruments and measuring instruments of the designed metering unit;

Functional diagram of accounting unit;

Diagram of heating networks with indication of place of installation of metering devices and boundary

balance sheet affiliation;

Layout of instruments, metering unit sensors and cable communication lines;

Installation drawings of metering unit sensors;

Electrical connection diagram of external wiring;

When using non-standard parts in the design (transitions, flanges, protective sleeves of thermal transducers) - their drawings;

Assessment of hydraulic losses on piping elements for installation of sensors and on sensors of thermal energy metering unit themselves;

For programmable heat meters - table of adjustment parameters

Data for metering assembly design:

Heating system:

maximum coolant flow rate in heating. period, t/h 2.8575

upper limit of measurement range of flow converter PREM32L2D, m3/h 30

lower limit of measurement range of flow converter PREM32L2D, m3/h 0.2

design temperature plot, ° С 150/70

GVS

maximum hot water flow rate, t/h 3.72

upper limit of measurement range of flow converter PREM20L2D, m3/h 12

lower limit of measurement range of flow converter PREM20L2D, m3/h 0.08

design temperature plot, ° С 55

XBC

maximum hot water flow rate, t/h 5.58

upper limit of measurement range of flow converter PREM20L2D, m3/h 12

lower limit of measurement range of flow converter PREM20L2D, m3/h 0.08

design temperature plot, ° С 5

To output and print current, daily totals, hourly parameters from the heat calculator

SPT943.2 use a radio modem on the printer.

11. Upon completion of works, the unit shall be submitted for delivery to inspectors of power and water supply organizations in the presence of a consumer representative (in accordance with the "Rules for accounting of heat energy of the coolant" and "Rules for use of public water supply systems")

12. After issuing the acceptance certificate of the metering unit within 10 days, the customer must contact the power supply organization to make changes to the contract for the release of thermal energy (according to mutual settlements).

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