Pressure Limiting Valve (Not Supplied With The Appliance); Expansion Control Valve (Not Supplied With The Appliance); Temperature Mixing Device (Not Supplied With The Appliance); Ptr Valve Connection - Bosch Tronic 1000T Installation And Operating Instructions Manual

NOTICE: Material damage!
▶ Install a filter at the water inlet in areas
where the water contains particles or
sediments
▶ Where water pipes are attached to the
tank exterior, screws of no longer than
25mm should be used. Any damage to
the tank will not be covered by warranty
WARNING:
Flush out pipes before connecting this water
heater to ensure no foreign matter can block
the valve seat, and use line strainers where
required by local authorities.
CAUTION:
Connections to this water heater must not
be welded, brazed, or soldered
connections. Connect only with
compression or mechanical fittings
WARNING:
Internal dip tubes must not be removed.
WARNING:
An ECV is required where "Scaling" water
exists having a total hardness in excess of
200mg/Litre (expressed as calcium
carbonate), where the saturation index is in
excess of +0.4 as detailed under water
quality, or where required by local
authorities.
WARNING:
Do not break or remove sections of metallic
water tubing used as an earth electrode for
an electrical installation before suitable
precautions have been taken to ensure it is
safe to do so.
5.2.1 Pressure limiting valve (not supplied with the
appliance)
In installations where the mains water supply pressure exceeds
that specified for this product, an approved pressure limiting
Tronic 1000 T
valve is required and must be fitted.
If the water heater is supplied with low pressure water, below
the minimum working pressure specified for this product, then
a pressure pump should be installed in order to minimize the
forming of air traps in the hydraulic circuit.
5.2.2 Expansion control valve (not supplied with the
appliance)
Local regulations, a saturation index greater than +0.4 or in
corrosive water areas where there are sufficient quantities of
silica dissolved in the water my require the installation of an
expansion control valve (ECV) in the cold water line, being the
last valve installed prior to the water heater.
5.3 Temperature mixing device (not supplied
with the appliance)
WARNING:
This water heater can heat water to
temperatures which can cause scalding.
Bosch recommends the installation of a temperature limiting
device between the water heater and the hot water outlets
supplying a sanitary outlet, in order to reduce the risk of
scalding.
Additionally, a licensed plumber my have the legal obligaton to
ensure the water heater installation meets the hot water
delivery requirements listed in AS/NZS 3500.4.
5.4

PTR Valve connection

A pressure and temperature relief valve (PTR valve) is supplied
and must be installed in the tank port marked for this purpose.
No valve or accessory of any type should be installed between
the relief valve and the tank. Please observe local codes for the
correct installation of relief valve drains.
WARNING:
The pressure rating of the PTR valve must
not exceed 850 kPa. The maximum supply
pressure of the water heater is marked on
the rating plate
The PTR valve thread is RP ½ " / 15mm BSP.
▶ Ensure the valve probe is straight and undamaged.
▶ Carefully apply Teflon tape to the valve, ensuring that the
tape does not extend past the end of the thread.
▶ The drainpipe must be fitted to the relief valve to carry
discharge safely away from the water heater (see AS/
NZS3500.4).
Installation instructions | 13
6 720 821 421 (2017/04)