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First Fix Notes
Primary Pipework from Heat Pump
Electrical Supply and Cable Requirements
• Minimum pipe size 22mm copper or 25mm Multilayer
• The primary pipework should be fully insulated and protected from water and moisture.
• The supplied flexible hose should be used for piping the condense outlet only, providing a suitable air
gap to the drain connection.
• The heat pump is supplied with a 1 metre supply cord. Ensure the mains supply connection is made
through a suitable isolator switch that can provide disconnection of all poles, with a minimum
separation of 3mm.
• Power supply to heat pump to be terminated with a suitable isolator located next to the unit.
• Tank Immersion maximum allowed output of 2kW, connection of immersion with greater power draw
will cause irreparable damage to Heat Pump controller board.
• External controls are to be Joule approved low voltage OpenTherm controllers only
Item No. Heat Pump Unitw Max Circuit Amps Rec. RCBO Size
HHH-AEHP-00002 Joule Modul-AIR Aqua/Solo 16 16 Amp
HHH-AEHP-00001 Joule Modul-AIR All-E 32 32 Amp
No. of Cores Location Minimum Cable Size Max Cable Length
2 Core + Earth Heat Pump to Immersion Heater 2.5mm
2
10m
2 Core OpenTherm Thermostat 0.50mm
2
30m
2 Core Heat Pump to RF Receiver 0.50mm
2
30m
• When installing the Heat Pump take great care to install as per the detailed notes for installation
locations. The Exhaust Air Heat Pump must have minimum clearance of 300mm at the top of the unit
and 100mm at the bottom of the unit.
• The Exhaust Air Heat Pump must not be installed in a location without these clearances available.
• Condensation will form inside the Heat Pump during normal operation, this is normal. Ensure the
correct pipework is used and that it has a continuous fall to the drain connection. An adequate air gap
is also required to allow the water to drain correctly.
• The Exhaust Air Heat Pump must be installed vertically and be plumb and level.
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