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Installation
1. Unlock the front access panel
Unlock and lower the front access panel using the
keys supplied.
2. Fix unit to wall
Fix the unit to the wall via suitable fixings.
3. Connect the pipes
Connect the heating system flow and return pipes
to the heater pipe work. Pipe entry/exit can be
made through either the back of the unit or by
using the pipe knockouts on the bottom of the
unit. Do not use soldered fittings to the heater
pipe work as the heat generated may cause
damage to internal wiring and components.
Compression fittings should be used.
remove screw
remove screw
Pipe knockouts
at rear of unit
pipe knockouts at rear of unit
remove screw
remove screw
8 | SmithsEP.co.uk | Issue 002 - November 2022
Note: We recommend the use of full-flow service
valves. The valves should be accessible after
completion of the installation. We also advise the
fitting of an air vent at the highest point on either
the flow or return pipe to remove any air trapped
within the system.
4. Open the service valves
Open the full flow service valves and check for
water leaks. Remove any trapped air from the
unit via the built in bleed screws as shown in the
diagram below. Note: Ensure the motorised valve
is set to the auto position.
5. Electrical supply
Isolate the electrical supply
6. Connect the power supply
Connect the power supply from the fused spur (3
Amp) to the heater terminal block marked Supply
E N L via the cable entry hole in the top chassis of
the heater.
N
L
Supply
Supply
The fused spur must not be directly below the
heater and must be accessible after the installation
is complete. All electrical work should be carried
out in accordance with current IEEE regulations.
3 Amp
3 Amp
fused spur
fused spur
7. Connect a room thermostat
To connect a room thermostat (not supplied)
1. Unscrew and remove electric panel
2. Remove link wire between terminals 7 & 8 and
fit thermostat wires
3. Refit electric panel
For further information refer to the room
thermostat manufacturers instructions.
1
2
3
4
5
6
7
8
9
to fan
supply
Thermostat
link (optional)
Commissioning
1. Turn on the electrical supply at the fused spur.
2. Turn the thermostat control (if fitted) to
maximum.
3. Turn on the central heating system.
4. If these heaters are installed on the same
circuit as panel radiators balance the central
heating system.
5. If the installation is working correctly
remember to reset the thermostat control to
its required setting.
6. Set the fan speed control to the desired
position. Note: To decrease motorised valve
cycles it is recommended that the flow is
reduced. (Please ensure adequate flow
through heater).
MED
LOW
HIGH
Fan speed control
7. Lift up and close front access panel, ensure
10
this is secure and locked in place with
keys provided.
8. Please leave this Installation & User Guide with
the user for future reference.
Issue 002 - November 2022 | SmithsEP.co.uk | 9
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