AS NZS 4234:2021 Sup 1-2021 Heated water systems一Calculation of energy consumption – Parameters and outcomes for software simulations (Supplement to AS/NZS 4234:2021).
This Supplement to AS/NZS 4234:2021 provides the input parameters and outcome values to be used when establishing the suitability of simulation software.
2 References
AS 3498, Safety and public health requirements for plumbing products—Water heaters and hot-water storage tanks
AS/NZS 2535.1, Test methods for solar collectors, Part 1: Thermal performance of glazed liquid heating collectors including pressure drop (iSO 9806-1:1994, MOD)
AS/NZS 4692.1, Electric water heaters, Part 1: Energy consumption, performance and general requirements
AS/NZS 5125, Heat pump water heaters—Performance assessment, Part 1: Air source heat pump
water heaters
3 Input parameter tables
The information in the tables is arranged for each technology type, as follows:
(a) Table 1 — Thermosiphon SWH with inline instantaneous gas boost.
(b) Table 2 — Thermosiphon SWH with in-tank electric boost.
(c) Table 3 — Pumped SWH with inline instantaneous gas boost.
(d) Table 4 — Pumped SWH with inline instantaneous electric boost.
(e) Table 5 — Pumped SWH with in-tank electric boost.
(f) Table 6 — Heat pump water heater — Integral with in-tank electric boost.
(g) Table 7 — Heat pump water heater — Standalone with in-tank electric boost.
(h) Table 8 —PV powered heat pump — Standalone with in-tank grid electric boost.
(i) Table 9 — PV powered SWH with grid electric boost.
(j) Table 10 — Pumped SWH with heat pump — Standalone boost.
(k) Table 11 — Electric reference water heater, very small and small loads for Australia.
(1) Table 12 — Electric reference water heater, medium and large loads for Australia.
(m) Table 13 — Gas reference water heater, all loads for Australia and New Zealand.
(n) Table 14 — Electric reference water heater, all loads for New Zealand.AS NZS 4234 pdf download.