
46
IMPORTANT
All water pipe connections throughout the sealed system must be capa-
ble of holding a pressure of up to 3 bars.
Radiator valves must conform to the appropriate standard.
Relief valve discharge must be directed away from any electrical compo-
nents or from positions where it would cause a hazard to the user.
A suitable drain cock must be fitted to the lowest point of the system.
For circuit design purposes, one should consider the information given
in Fig. 24 relating to the available pump head.
4.3.2 DOMESTIC HOT WATER
ATTENTION!
Work must not be carried out on the appliance without the
gas and electricity supplies being switched off.
• The following are general requirements, but reference should be
made to any local Water Supply Company regulations before fitting
the appliance.
• Mains Cold Water Inlet. Devices capable of preventing the flow of
Figure 23 Volumetric Flow Rate & Pressure Difference Relation for the Circula
-
tion Pump
*: Graph excludes the internal resistance of boiler.
Содержание HARMONY - D
Страница 1: ...1 USERS INSTALLATION AND SERVICING INSTRUCTIONS HARMONY D ...
Страница 2: ...2 Code No A 1 2 8i Publishing Date 200114 Revision Date 200114 ...
Страница 36: ...36 HARMONY_D USERS INSTALLATION AND SERVICE MANUAL 27 Figure 15 Wall Connections Figure 16 Extensions Elbow ...
Страница 70: ...70 HARMONY_D USERS INSTALLATION AND SERVICE MANUAL 55 Appendix A FAULT DETERMINATION ...
Страница 71: ...71 ...