Installation and maintenance manual
INFINEE chillers
TECUMSEH EUROPE S&L
2 av. Blaise Pascal, 38090 Vaulx Milieu
Tel.: +33 (0)4 74 82 24 00 - www.tecumseh.com
ENGLISH
14
Version: 2020-01
Sound
The chiller is designed for quiet operation. Nevertheless, the choice of location should take into
consideration possible discomfort for the neighbourhood and regulations in force.
Precautions must be taken during the study, design and realisation of the installation not to generate noise
or vibration, etc.
Compressor power frequency
Hz
25
40
50
75
85
Sound power level
Lw dBA
78.6
80.2
83.2
85.9
88.1
Pressure level at 10 m *
Lp dBA
58.6
60.0
63.0
65.1
66
* in free field on a reverberant plane
Fixing
The chiller must be installed and securely fixed to a stable, level plane.
Arrange a base capable of supporting the load and vibrations.
The brackets must be sealed with means adapted to the soil quality.
Use dowels suitable for the materials used and a proper sealing length. Do not use a wooden rafter as a
fixing sleeper.
It is recommended to separate (in terms of vibration) the chiller from its support and the support of the
ground or the wall, thanks to joints in absorbing materials or antivibration pads (not provided). In this case,
comply with the manufacturers
’ recommendations for their selection and implementations. The selection
of shock absorbers and their absorption capacity are not the responsibility of TECUMSEH.
The chiller must be installed level (+/- 0.5%).
Under no circumstances should acoustic cladding be installed on the compressor or the chiller.
Freeze protection
Components such as the evaporator, the pump and the pipes can be damaged by frost. It is necessary
to integrate antifreeze protection according to the temperature of the water and its location (meteorological
condition, prevailing winds, exposure, etc.). The temperature of the chiller coolant can be regulated down
to -
8°C. Refer to the Section “Glycol” to determine the appropriate minimum protection
In normal operation the hydraulic pump works continuously and mounting on the installation of a by-pass
valve (diagram below) is essential at the minimum.
Diagram:
The chiller has a specific algorithm that protects the hydraulic system in case of negative
temperature and chiller shutdown. It is imperative to maintain water flow in the chiller. Indeed,
according to the temperature level, the pump will be started and stopped at regular time intervals. If
the water temperature continues to drop and reach a very low level, then the pump will be operated
continuously. In these two cases, cold production is stopped.
Open bypass
Valves
