21
IGE/UP/10:
Installation of flued gas appliances in industrial and commercial premises
Edition 3
Gas Safety (Installation and Use) Regulations 1998 (England, Scotland & Wales)
CIBSE: Guide parts A, B and C
CIBSE Commissioning Code B:
Boilers
CIBSE Commissioning Code W:
Water Distribution Systems
BISRIA AG1/2001.1:
Pre-commission cleaning of pipework systems
H.S.E. guidance
Automatically controlled steam and hot water boilers
note PM5:
Third edition of the 1956 Clean Air Act Memorandum on Chimney Heights
Manufacturer's notes must not be taken in any way as overriding statutory obligations.
5.0
WATER QUALITY
5.1
WATER CHEMISTRY
In hard water areas, scale formation can occur in hot water systems. The situation can intensify where higher temperatures or
demands exist.
The pH value of the water must be between 7.5 and 9.5.
Water hardness must be between 50 ppm CaCO
3
and 150 ppm CaCO
3
The Aluminium content of the TDS (Total Dissolved Solids) should not exceed 8.5 ppm.
If the above requirements cannot be satisfied, a water treatment specialist must be consulted. Details of companies that provide
such a service can be obtained from Lochinvar Limited.
5.2
AIR/DIRT SEPARATION
Precautions must be taken to remove air and dirt from the heating system. The system should be fully flushed with an air
separator and dirt separator fitted to fully protect against contamination of the heat exchanger. If there is any doubt of the water
staying free of any kind of debris/contamination in the period after installing, a plate heat exchanger should be installed to
separate the boiler circuit from the heating circuit.
5.3
WATER PRESSURE
The CP-M+ boiler has an in-built water pressure sensor, with this sensor the minimum water pressure in the boiler is 0.8 bar and
the maximum pressure is 4.0 bar (sensor values). The recommended water pressure is between 1.5 and 2.0 bar. The pressure
sensor will stop the boiler from firing when the water pressure drops below 0.8 bar, and start the boiler firing again when the water
pressure reaches above the 1.0 bar.
If pressures higher than 4.0 bar are required within the heating system, it is recommended that the system is separated from the
boiler by means of a plate heat exchanger. This will allow the boiler pressure to be under 4.0 bar and the boiler control remains as
described above. If this is not possible, a water pressure switch must be fitted to the boiler instead of the water pressure sensor -
the maximum allowed value in the boiler now is 6.0 bar and the boiler control needs to be adjusted.
Summary of Contents for CP-M Series
Page 5: ...5 2 0 PRINCIPAL PARTS FIGURE 2 1 REMOVABLE COMPONENTS CP M 60...
Page 6: ...6 FIGURE 2 2 REMOVABLE COMPONENTS CP M 60 CONTINUED...
Page 8: ...8 FIGURE 2 3 REMOVABLE COMPONENTS CP M 80 CP M 100...
Page 9: ...9 FIGURE 2 4 REMOVABLE COMPONENTS CP M 80 CP M 100 CONTINUED...
Page 11: ...11 FIGURE 2 5 REMOVABLE COMPONENTS CP M 120...
Page 12: ...12 FIGURE 2 6 REMOVABLE COMPONENTS CP M 120 CONTINUED...
Page 14: ...14 FIGURE 2 7 REMOVABLE COMPONENTS CP M 150 CP M 180...
Page 15: ...15 FIGURE 2 8 REMOVABLE COMPONENTS CP M 150 CP M 180 CONTINUED...
Page 94: ...94...
