AS NZS 4234:2021 – Heated water systems-Calculationof energy consumption- Parametersand outcomes for software simulations(Supplement to AS/NZS 4234:2021).
This Supplement to AS/N7S 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, Heut pump water heaters—Performance assessment. Part 1: Air source heat pump
water heaters
3 Input parameter tables
The information in the tables is arranged [or 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.
(1) Table 6 — Heat pump water heater — Integral with in-tank electric boost.
(g) Table 7 — heat pump water haatcr — Standalone with in-tank clectric boost.
(h) Table U —PV powered heat pump — Standalone with in-tank grid electric boost.
(i) Table 9 — PV powered SWH with grid electric boost.
(I) Table 10 — Pumped SWII with heat pump — Standalone boost.
(k) Table 11 — Electric reference water heater, very small and small loads [or Australia.
(I) 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.