Filling The Water Heater And Heating System; Bleeding The Heating System; Electrical Installation - York YHGS Installation Instructions Manual

Figure 33: Cut the hose to the correct length to avoid
excess bowing-out or stretching and offset the ends so
that the hose is not installed completely straight.
Figure 34: Use fixed pipe bends to avoid excess
stress on bends next to connections.
Connect the supply line with a flexible hose connection and with
1.
all the necessary components.
Connect the return line with a flexible hose connection and with
2.
all the necessary components including a filter.
Insulate the supply and return lines.
3.
Connect the expansion tank to the expansion outlet (22mm Cu)
4.
on the top of the heat pump.
6.6. FILLING THE WATER HEATER AND
HEATING SYSTEM
1. Fill the water heater with cold water by opening the filler valve (10)
which is located on the valve pipe.
2. Bleed by opening one of the hot water taps.
3.
Then fill the water heater coil and the heating system with water
through the filling valve (12) to a pressure of approx.. 1 bar.

6.7. BLEEDING THE HEATING SYSTEM

1.
Open all radiator valves fully.
2. Bleed all radiators.
3.
Refill the heating system to a pressure of approximately 1 bar.
4.
Repeat the procedure until all air has been removed.
5.
Leave the radiator valves fully open.

7. ELECTRICAL INSTALLATION

Electrical current!
The terminal blocks are live and can be
!
highly dangerous due to the risk of electric shock. The power
supply must be isolated before electrical installation is started.
The heat pump is connected internally at the factory, for this
reason electrical installation consists mainly of the connection
of the power supply.
Electrical installation may only be carried out by an authorized
l
electrician and must follow applicable local and national
regulations.
The electrical installation must be carried out using permanently
l
routed cables. It must be possible to isolate the power supply
using an all-pole circuit breaker with a minimum contact gap of 3
mm. (The maximum load for externally connected units is 2A).
Electrical connection can also cause noise so this installation
l
must be carried out appropriately. The figure below shows an
appropriate installation. There is approximately 300mm free
cable between the heat pump and building, however, this requires
the cable to be securely installed onto the top panel so that the
cable cannot be fed into the heat pump. It is inappropriate to bolt
trunking between the heat pump and the wall. This is because
vibrations can then be transmitted from the heat pump through
the trunking to the walls of the house.
When the cable is connected to the terminal block a screwdriver
l
is used to open the terminal block, see figure below.
2
3
1
4
Figure 35: Connecting cable to terminal block.
1 2
5
6
7
10 11
Figure 36: The location of the components on the electrical panel.
Q
Terminal block (applies
to the expansion card)
W
Terminal block
(applies to Geysir Air)
E
Defroster card
(applies to Geysir Air)
R
Terminal block
T
Space for Johnson
Controls Online
Y
Warning decal
5 OK!
3 4
8
9
12
U
Space for
expansion card
I
Contactor for
compressor
O
Automatic fuses
P
Resetting overheating
protection
{
Control compute
}
Soft starter card
17
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