Ideal Heating i305, Установка и обслуживание

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17
Installation and Servicing
SECTION 2 - INSTALLATION
2.5 SYSTEM FILLING
Continued....
3G9705
Safety Valve
Drain Connection
15mm elbow
or fittings
(not supplied)
Pressure Relief Valve
Drain Pipe
(not supplied)
Note: Isolation valves are labelled A to F from left to right.
Filling DHW
1. Ensure all taps in the property are turned off.
2. Turn the blue valve handle on isolation valve A to the "run"
position (handle pointing downward).
3. Turn on the incoming mains water supply.
4.
With a suitable hose and container fitted to the upper far
left air vent, open upper DHW vent screw to allow air to
exit. As soon as air free water flow is detected close the
vent.
5. Turn isolation valve B to the "run" position (handle pointing
upwards).
6. Open the furthest tap from the unit to vent any air from the
system.
Filling CH / Topping up (Indirect Ony)
1. Ensure isolation valves A, E and F are in the “run” position
(handle vertical) and isolation valve G is in the “off”
position (handle opposing body).
2.
Remove the dust cap from valve A and plug from the filling
loop adjacent to valve A.
3.
Ensure top hat washers is still fitted to the valve A (if not
then check inside the removed dust cap).
4.
Connect the filling loop to valve A.
Note: Heat Interface Unit not shown for clarity
5.
Turn isolation valve A to the “fill” position (handle
horizontal).
6.
Turn valve G to the “fill” position (handle in line with valve
body). The CH circuit will begin to fill.
7. Monitor the pressure gauge until the correct pressure
is achieved (max 2.75 Bar, recommended 1 – 1.5 bar
for normal operation) then turn isolation valve G to the
“off” position (handle opposing valve body) to isolate the
charge supply.
A
G
F
E
A
B
C
D
E
G
F
A
E
G
F
Filling Loop Hose
PRESSURE RELIEF VALVE (INDIRECT
ONLY)
The safety valve connection, located at the
bottom right-hand side of the HIU, comprises a
15mm diameter stub pipe.
The installer must provide a suitable joint on
the end of the stub pipe. This assists with pipe
removal when servicing.
The discharge pipe must be positioned so that
the discharge of water or steam cannot create
a hazard to the occupants of the premises or
damage the electrical components and wiring.
INST
ALLA
TION