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G. John Guest connection fittings
Connecting a John Guest connection fitting
1 Push the tube into the connection fitting as far as the end stop.
2 Pull the locking ring outward and slide the retaining clip to
prevent the ring returning.
Disconnecting a John Guest connection fitting
Before disconnecting, check that the system is depressurised.
Remove the retaining clip, push the locking ring inward and pull the
tube.
H. Filling the unit with water
Fill the unit with water or antifreeze fluid, via the hatch at the front, up
to the top of the water coil.
This represents approximately 30 litres of heat transfer fluid.
I. Drain connections
Connect the drain tube (ø 15) to the end of the elbow and secure
with a stainless steel clamp
Water connection for humidifier (Available as
optional extra. Kit ref. ATAHOCONNECT-HR)
1
2
1 Solenoid valve connection (20/27 mm)
2 Pre-cuttable panel for passage of the pipe.
Connect the water supply to the humidifier
!
If the water pressure is above 2.8 bars, it is essential to use a
pressure limiter kit
tube de
Drain tube
vidange (ø 15)
(Ø 15)
Ø 15mm
17
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