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Rotex RHYKOMB33AA Installer's Reference Guide

Rotex RHYKOMB33AA
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7 Installation
Installer reference guide
31
RVLQ05+08CAV4 + RHYHBH05AA + RHYHBH/X08AA +
RHYKOMB33AA
ROTEX HPU hybrid
4P355635-1 – 2013.05
7.7 Connecting the water piping
7.7.1 Connecting the water piping of the indoor
unit
To connect the water piping for space heating
NOTICE
In case of old heating installations, it is recommended to
use a dirt separator. Dirt or sediment from the heating
installation can damage the unit and reduce its lifetime.
NOTICE
Do NOT use excessive force when connecting the piping.
Deformation of the piping can cause malfunctioning of the
unit.
NOTICE
It is recommended to install shut-off valves to space
heating in and space heating out connections. Shut-off
valves are field supplied. They allow service to the unit
without draining the whole system.
Foresee a drain/fill point to drain or fill the space
heating circuit
NOTICEType and source of hazard
Do NOT install valves to shut down the entire emitter
system (radiators, floor heating loops, fan coil units, ...)
instantly if this can result in an immediate short circuit of
the water flow between the outlet and the inlet of the unit
(for example via a bypass valve). This may trigger an error.
1 Connect the water inlet connection (Ø22 mm).
2 Connect the water outlet connection (Ø22 mm).
a
b
a
Water inlet
b
Water outlet
NOTICE
To avoid damage to the surroundings in case of water
leakage, it is recommended to close the cold water inlet
stop valves during periods of absence.
3 In case of connection with the optional domestic hot water tank,
see the installation manual of the domestic hot water tank.
NOTICE
A drain device and pressure relief device should be
installed on the cold water inlet connection of the
domestic hot water cylinder.
To avoid back siphonage, it is recommended to install a
non-return valve on the water inlet of the domestic hot
water tank in accordance with the applicable legislation.
It is recommended to install a pressure reducing valve
on the cold water inlet in accordance with the
applicable legislation.
An expansion vessel should be installed on the cold
water inlet in accordance with the applicable legislation.
It is recommended to install the pressure relief valve on
higher position as top of the domestic hot water tank.
Heating of the domestic hot water tank causes water to
expand and without pressure relief valve the water
pressure inside the tank can rise above the tank design
pressure. Also the field installation (piping, tapping
points, etc.) connected to the tank is subjected to this
high pressure. To prevent this, a pressure relieve valve
needs to be installed. The overpressure prevention
depends on the correct operation of the field installed
pressure relief valve. If this is NOT working correctly,
overpressure will deform the tank and water leakage
may occur. To confirm good operation, regular
maintenance is required.
7.7.2 Connecting the water piping of the gas
boiler
To connect the water piping for space heating
Use the straight brass fitting connections (accessory of the heat
pump unit).
1 The space heating piping of the boiler will be connected to the
indoor unit.
2 Install the straight brass fitting connections so that they
perfectly match the connection of both modules.
3 Tighten the straight brass fitting connections.
b
a
a
Outlet space heating
b
Inlet space heating

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Rotex RHYKOMB33AA Specifications

General IconGeneral
BrandRotex
ModelRHYKOMB33AA
CategoryBoiler
LanguageEnglish

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