Landis & Gyr ULTRAHEAT T550 Installation Instructions Manual
en
Installation Instructions
Calculator
ULTRAHEAT
®
T550
(UC
50…)
ULTRACOLD
®
T550
(UC50
…)
08.05.2017
Translation
T550
(UC50…)
Landys+Gyr GmbH
Subject to change without prior notice
08.05.2017
1
Note: In the following text, the term calculator refers to
both heat meter calculator and cooling meter calcula-
tor, unless they are otherwise differentiated.
1.
General
The calculator left the factory in a faultless condition where
safety is concerned. Adjustments, maintenance work, re-
placement of parts or repairs may only be carried out by spe-
cialist staffs who are aware of the associated hazards. The
manufacturer will provide additional technical support on re-
quest. Calibration relevant security seals on the calculator
must not be damaged or removed. Otherwise the guarantee
and calibration validity of the meter will lapse.
Keep the packaging so that you can transport the calcula-
tor in its original packaging following expiry of the calibra-
tion validity.
Lay all cables at a minimum distance of 500 mm to high
voltage and high frequency cables.
A relative humidity of < 93 % at 25 °C is permissible (with-
out condensation).
The 110 V / 230 V network parts correspond to protection
rating II so that the line voltage does not need to be dis-
connected when changing the meter.
2.
Safety Information
The calculator may only be used in building service
engineering systems and only for the applications
described.
The local regulations (installation etc.) must be ad-
hered to.
Adhere to the operating conditions according to the
dial plate during use. Non-adherence can cause haz-
ards and the guarantee will lapse.
Guarantee and calibration validity will lapse if the
calibration relevant security seals are broken.
Only clean the calculator from outside with a soft,
lightly wetted cloth. Do not use any spirit or cleaning
solvent.
The 110 V / 230 V connections may only be made by
an electrician.
The calculator may only be powered up once the
installation has been completed. There is otherwise a
danger of electronic shock on the terminals.
A defective or obviously damaged appliance must be
disconnected from the power supply immediately and
replaced.
As far as disposal is concerned, the calculator is a
waste electronic appliance in the sense of European
Directive 2012/19/EU (WEEE) and it must not be
disposed of as domestic waste. The relevant national,
legal regulations must be observed as the appliance
must be disposed of via the channels provided for this
purpose. The local and currently valid legislation must
be observed.
The calculator may contain lithium batteries. Do not
dispose of the calculator and the batteries with do-
mestic waste. Observe the local stipulations and laws
on disposal.
You can return the lithium batteries to the manufac-
turer for appropriate disposal following use. When
shipping please observe legal regulations, in particu-
lar, those governing the labelling and packaging of
hazardous goods.
Do not open the batteries. Do not bring batteries into
contact with water or expose to temperatures above
80 °C.
The calculator does not have any lightning protection.
Ensure lightning protection via the in-house installa-
tion.
Only fit one compartment for the power supply. Do not
remove the red locking hatch.
3.
Installation
Note: The mounting place and the pulse value of
flow sensors with pulse output must correspond to
the in the calculator set values (see LOOP 2).
Service loop
2 („LOOP 2“)
Service loop 2 displays the installation details.
Head of the loop
Mounting place of the flow sensor: cold side or
Mounting place of the flow sensor: hot side
Pulse value
Note: At a heat meter calculator or combined
heat/cold meter calculator the mounting place of the
flow sensor cold side is equivalent to return. The
mounting place of the flow sensor hot side is equiva-
lent to flow.
Note: At a cooling meter calculator the mounting
place of the flow sensor hot side is equivalent to the
return. The mounting place of the flow sensor cold
side is equivalent to flow.
Attention: Calculators with one-time adjustable
pulse value and adaptable mounting place being
characterized by:
Attention: At calculators with one-time adjustable
pulse value, the pulse value must be adjusted during
commissioning in accordance with the flow sensor
and the mounting place must be checked!
As long as the pulse value has not been set, the
calculator does not cumulated energy and volume.
The mounting place can be adapted and is fully
locked by entering the pulse value.
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