Rotex RHYKOMB33AA, Installation And Operation Manual

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7 Installation
Installation and operation manual
13
RHYKOMB33AA
ROTEX HPU hybrid gas boiler module
4P353068-1 – 2013.07
b a
a
Outlet space heating
b
Inlet space heating
NOTICE
Make sure that the straight brass fitting connections are
tightened thoroughly to prevent leakage. Maximum torque
is 30 N
∙ m.
To fill the domestic water circuit of the gas boiler
1
Open the main tap to pressurize the hot water section.
2
Vent the exchanger and the pipe system by opening a hot water
tap.
3
Leave the tap open until all air has disappeared from the
system.
4
Check all connections for leaks including internal connections.
7.4.2 To fill the space heating circuit
1
Flush the installation thoroughly to clean the circuit.
2
Connect the water supply hose to the drain point (field supply).
3
Power up the gas boiler to see the pressure indication on the
boiler display.
4
Make sure that the air purge valves of the gas boiler and the
heat pump module are open (at least 2 turns).
5
Fill the circuit with water until the boiler display indicates a
pressure of ±2 bar (with a minimum of 0.5 bar).
6
Purge air from the water circuit as much as possible.
7
Disconnect the water supply hose from the drain point.
7.5 Connecting the electrical wiring
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
7.5.1 To connect the main power supply of the
gas boiler
1
Connect the power supply cable of the gas boiler to a fuse (a)
(L: X2-2 (BRN), N: X2-4 (BLU)).
2
Connect the earthing of the gas boiler to an earthing terminal.
Result:
The gas boiler performs a test. appears on the service
display. After the test, appears on the service display (wait mode).
The pressure in bar is shown on the main display.
a
X2
DANGER: RISK OF ELECTROCUTION
A fused spur or an unswitched socket MUST be located no
more than 1 m from the appliance.
CAUTION
For installation in damp rooms, a fixed connection is
obligatory. When working on the electrical circuit ALWAYS
isolate the electric supply.