Tecumseh CAJ Series Installation Instructions Manual

NOTICE GROUPES CONDENSATION_Mise en page 1 08/04/11 16:40 Page1
ENGLISH
INSTALLATION INSTRUCTIONS
Condensing units
Read the following instructions carefully
before installing the unit.
CONTENTS
1 WARNING
1.1 Transport
1.2 Installation
2 TECHNICAL DATA
2.1 Identification label
3 INSTALLATION
3.1 Unpacking
3.2 Handling
3.3 Location
3.4 Refrigeration connections
3.5 Electrical connections
3.6 Valve tightening torques on
the compressors and receivers
3.7 Voltage codes
4 START UP
4.1 Preventing leakage
4.2 Pulling a vacuum
4.3 Refrigerant charge
4.4 Pre-start check list
4.5 Check list after start up
5 SERVICING AND MAINTENANCE
5.1 Fan condenser and leak search
5.2 Safety
6 WARRANTY
7 DECLARATION OF CONFORMITY
8 DECLARATION OF INCORPORATION
9 APPENDICES
1 WARNING
1.1 Transport
For information regarding the delivery of condensing units,
please refer to our sales terms and conditions.
1.2 Installation
 This condensing unit and all related equipment must be
installed by qualified staff.
 The installation should be carried out in accordance with the
relevant refrigeration and electrical standards which apply in that
country. Refrigeration best practice must be followed.
 Tecumseh Europe S.A. shall not under any circumstance be
liable if the installation and maintenance are not carried out in
accordance with the instructions given in this manual. Respect
the operating ranges related to the Low Pressure and High
Pressure applications defined by TECUMSEH EUROPE S.A.
2 TECHNICAL DATA
2.1 Identification label
See Appendix, page 14
Page 1 04/2011 Réf : 366324e
3 INSTALLATION
3.1 Unpacking
Before unpacking the unit, check that the packaging has
not been damaged in any way and that the exterior is in
good condition.
3.2 Handling
Caution: do not handle the condensing unit by the cooling
tubes; only handle it using the base provided for the
purpose.
3.3 Location
The condensing unit should not block or obstruct
thoroughfares, doors, shutters or the movement of
personnel.
The surface supporting the condensing unit must be level
and capable of bearing the combined weight of the unit +
support.
Check that the level is properly set for the condensing unit.
Ensure there is sufficient distance between the condensing
unit and objects in the surrounding area to ensure good
air circulation.
Check that the level is properly set for the condensing unit
Ensure that the condensing unit is kept away from heat
sources, damp areas, corrosive atmospheres or any sites
where there is a risk of explosion. Do not exceed the
recommended service pressure.
3.4 Refrigeration connections
To ensure the quality of our products, the condensing unit
has been evacuated and charged with nitrogen.
WARNING
To maintain the quality of a Tecumseh Europe
SAcondensing unit and to ensure it functions correctly, the
following precautions must be taken:
 Check that the pipe work to be connected is clean and
dry.
 Purge the system with nitrogen whilst brazing and
ensure the flame is held well away from electrical
equipment.
 Insulate the suction line up to the compressor inlet to
limit the suction superheat.
 Only use the designated refrigerant for which the
compressor is designed (see identification label).
 Do not add any additives or colourings
 Ensure the pipework is well supported and as short as
possible between supports to prevent oil trapping and to
aid the absorption of vibration and pulsations.
 Do not add oil except in cases where piping is longer
than 10 m; in this instance, use oil recommended by
TECUMSEH EUROPE S.A.
In installations with vertical pipe risers, it may be necessary
to create U traps and reduce the diameter of the pipework
to ensure adequate speed for oil circulation.
 Ensure that any pressure relief connections are directed
away from users to prevent them being exposed to any
danger.
 Cut and shape piping carefully to prevent dust and
metallic particles getting into the system. Never use a saw.
Use the correctly sized bending tool for the pipe diameter
to prevent the pipe being compressed.
Tecumseh Europe recommends using brazed instead of
flared connections to reduce the possibility of any leaks.
Flared connections using a connector and washer are
acceptable.
 Tape the pipes together with self-adhesive vinyl tape
and attach them to the wall with clips.
 WARNING : It is important to prevent damage to
electrical cable insulation when using clips. A cable track
installed in compliance with NF C15-100 and separate
from the refrigerant pipework is preferred.
3.5 Electrical connections
Ensure the electrical supply is disconnected before
carrying out any wiring or repairs of the unit. All
cabling on site must conform with NF C15-100 in
France or with the current legislation in the country
in question (NF EN 60204 / 60335 in the EC).
WARNING
To ensure the quality of a TECUMSEH EUROPE SA
condensing unit, it is essential to:
 Check that the installation power supply voltage is
compatible with that of the condensing unit (see
identification plate).
 Check the compatibility of the wiring diagram with that
of the installation.
 Size the cables (power and control circuits) according
to the specifications of the condensing unit installed.
(See Identification label)
 Ensure that the power supply to the unit is correctly
protected and earthed.
 Ensure that the unit is earthed when replacing
components.
Like the protector, it is vital to use the relay delivered with
the compressor, even if another model seems to be
satisfactory at a given time.
All the compressors in the TECUMSEH EUROPE S.A.
range are protected by an external or internal protection
mechanism, for which the principle is based on a current /
temperature combination. Like any protection mechanism,
it is normal for it to disconnect the compressor's power
supply outside the normal usage ranges provided by
TECUMSEH EUROPE S.A.
3.6 Valve tightening torques on the
compressors and receivers
3.7 Voltage codes
4 START UP
4.1 Preventing leakage
All connections must be systematically checked for any
leakage with an electronic leakage detector suitable for the
type of refrigerant used. around the joints.
Consult the TECUMSEH EUROPE SA policy bulletin for
compressors assembled in parallel.
A leak test can be carried out before pulling a vacuum by
using a charge of nitrogen and a leak detection aerosol
(refrigerant tracers not approved).
A more accurate check using an electronic leakage
detector can be carried out after charging with refrigerant.