Page 13 of 24
Heat Pump Water Heaters
MWP Series
Controller
Features
• LED to indicate status of the unit [Power On/Off].
• Real time clock.
• 12 or 24 hour time display
• °C or °F display
• Auto-Restart or No Restart after power failure
• Backlit screen for ease of reading;
• Soft touch tab keys
• PIN protected menus (Installer PIN)
• Keypad and/or temperature lock
• Integrated Modbus option
• Battery backup (Lithium).
• Audible beep to acknowledge key entry
• 24V control cable.
The Magnus MWP Series pool heat pump comes factory tted
with a TZT-100 temperature controller – a multi-function device
that can control the operation of the pool water heat pump.
(Other control options are shown on the next page).
The TZT-100 controller is pre-congured/pre-wired within the
electrical panel, but may be re-located to another location (out
of the weather) within the home or a control room if this is
more convenient to make regular adjustments to the operation,
eg desired pool temperature. (A 10m extension cable is
supplied.)
The TZT-100 is always ON, however the heat pump operation is
only enabled by the operation of the external Pool Pump &
Filtration/Chlorination system (supplied by others) which
provides the essential water ow through the unit. (Requires
TZT-100’s DIP switch 6 ‘ON’ and DIP switch 8 ‘ON’ for a single
set point).
Note:
1. The unit is ow switch activated.
2. The communications cable and sensor wire must be installed
away from any power cables to avoid the possibility of
electrical interference.
3. The unit must NOT be switched off in freezing conditions.
Figure 6. TZT-100
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