Installation guide
21
DOMESTIC INSTALLATION GUIDE
2k: Tempering Valves
a. The tempering valve should be fitted on the hot water outlet of the Quantum units to reduce
water temperature to the temperature designated in (e.g., 50°C as per the plumbing code and
Federal, State requirements.
b. Quantum recommends the use of high performance valves suitable for “Solar” type water heaters.
2l: Electrical Connection
a. Quantum water heaters are designed for single-phase 220-240V 50Hz A.C supply only. All electrical work must
be conducted by a certified electrician according to the local regulations and AS3000. A 10 Amp or 15 Amp circuit
breaker must be installed at the power supply for hot water units up to 0.8kW or 1.7kW, respectively. The power
connection rating for Quantum water heaters up to 1.1kW is 220-240V 50Hz A.C 10 Amp, and 15 Amp for the
1.7kW models.
b. A separate circuit breaker is recommended for each unit in the case of multiple installations.
c. It is not recommended to wire the system to an earth leakage circuit breaker. There is lot of moisture present while
in operation and this can lead to nuisance tripping.
d. The connection will require an approved, standard 240V On/Off switch or Junction Box in close proximity to the
heater. The unit should be connected to Standard Domestic tariff. Off Peak connection is NOT recommended for
Quantum heat pump units. If the unit is connected to an “Off Peak” connection, the minimum power availability
must be at least 18 hours per day.
e. The fitted power cord is not to be removed; this cord should be connected with the building wiring in an On/
Off switch enclosure or Junction Box. Faulty wiring may void the warranty if damage has been sustained to the
compressor or heat pump from such faulty or sub-standard wiring. *Please note that your Quantum Heat Pump
is now fitted with a Digital Timer. (Not all models). For further information please contact the Quantum
Service Call Centre on 1800 644 705.
2l1: Safety Notes
Note 1: This water heater is fitted with a thermostat and over-temperature energy cut-out (both incorporated into the
digital controller). Under no circumstances should the water heater be operated without both of these devices being
in the circuit. Only a qualified electrician or the manufacturer should carry out replacement.
Note 2: If the supply cord is damaged, the manufacturer or its service agent or other similarly qualified person must
replace it in order to avoid hazard.
Caution: The water heater must be filled with water before turning on the electricity.
2m: Refrigeration Connections (Split Models Only)
a. Refrigeration pipe work is highly specialised and should only be completed by a licensed
refrigeration mechanic.
b. Maximum refrigeration pipe length from the tank connections to the evaporator is 10m.
c. If the evaporator is mounted below the tank connection point, then a suitable oil trap needs to be installed
on the suction line between the evaporator and the heat pump.
2m1: Refrigeration tube sizes
QUANTUM MODEL COPPER TUBE SIZE – INLET COPPER TUBE SIZE – OUTLET
COPPER TUBE SIZE – OUTLET
(if evaporator below tank level)
150/200-08ASW-134 5/16 Inch (8.0mm) 3/8 Inch (9.5mm) 5/16 Inch (8.0mm)
270/340-11AS4-134 5/16 Inch (8.0mm) 1/2 Inch (12.7mm) 3/8 Inch (9.5mm)
340-17ASW-134 3/8 Inch (9.5mm) 5/8 Inch (16.0mm) 1/2 Inch (12.7mm)
*When the evaporator is below tank level on the Titan model, use a 1/2 Inch (12.7mm) outlet tube.