NZS 4603:1985 INSTALLATION OF LOW PRESSURE THERMAL STORAGE ELECTRIC WATER HEATERS WITH OPEN COPPER CYLINDERS (OPEN VENTED SYSTEMS) (Incorporating Amendment 1: 1990)
101.1
This New Zealand Standard applies to the installation in the vertical position of thermal storage electric water heaters complying with NZS 4602 and designed to work on pressures not exceeding 120 kPa (12.0 m a head). It is restricted to systems with open vents. This Standard also applies to hot water reticulation systems, to dual systems, and to the use of wetbacks or similar water heaters which supply hot water to the cylinder, supplementing the heat derived from the electric element. Solar assisted systems are not covered in this Standard.
This Standard is divided into the following Parts:
Part 1 — General
Part 2 — Installation of water heaters
Part 3 — Installation of hot water reticulation systems
Part 4 — Installation of dual systems with natural circulation
Part 5 — Installation of dual systems with pumped circulation
NZS 4603:1985 history
1976NZS 4603:1985 INSTALLATION OF LOW PRESSURE THERMAL STORAGE ELECTRIC WATER HEATERS WITH OPEN COPPER CYLINDERS (OPEN VENTED SYSTEMS) (Incorporating Amendment 1: 1990)