7 © STULZ GmbH – all rights reserved EN/01.2019/G22
EC TOWER TECHNICAL MANUAL
1. Information on this document
This Technical Manual contains detailed information on installation, operation, maintenance and
troubleshooting.
Always keep the Technical Manual to hand at the location of use.
Make sure that persons responsible for operating and working on the product have fully read and understood
this manual. Please call the Service Center if you have any questions.
1.1 Scope
This Technical Manual applies to the EC Tower version 07 or later (sizes 1 and 2). You can find the version
number on the rating plate of the EC Tower (see section “5.1 Type code“ on page 14). The sizes are
described in section “5.5.1 Sizes“ on page 20.
1.2 Presentation conventions
Safety and warning notices are indicated by signal words. The signal words indicate hazard levels with risks of
injury of varying degrees of severity. The signal word IMPORTANT indicates a risk of property damage.
DANGER
Death or serious injury due to a high-risk hazard
WARNING
Death or serious injury due to a medium-risk hazard
CAUTION
Slight injury due to a low-risk hazard
NOTICE
Damage to property or the environment
NOTE
Special tips on getting the best out of the product
2. Safety
2.1 Safety instructions
General
These operating instructions contain basic information which is to be complied with for installation, operation
and maintenance. They must therefore be read and complied with by the fitter and the responsible trained
staff/operators before assembly and commissioning. They must be permanently available at the place where
the system is used.
NOTE
This air conditioning unit uses refrigerant R410A. Refrigerants are hydrofluorocarbons (HFCs)
that are either volatile or are liquefied under pressure and highly volatile. They are non-combus-
tible and, if handled correctly, are not hazardous to health.
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